Author: "Universidad Nacional de Colombia [Bogotà] (UNAL)" - Searchworks@Jio Institute Digital Library Search Results

Your search keyword '"Universidad Nacional de Colombia [Bogotà] (UNAL)"' showing total 230 results

Start Over Author "Universidad Nacional de Colombia [Bogotà] (UNAL)"

230 results on '"Universidad Nacional de Colombia [Bogotà] (UNAL)"'

1. Sustainability analysis for the design of distributed energy systems: A multi-objective optimization approach

Author: Laurent Falk, Mauricio Camargo, Jean-Marc Commenge, Iván D. Gil, Juan D. Fonseca, Equipe de Recherche sur les Processus Innovatifs (ERPI), Université de Lorraine (UL), Laboratoire Réactions et Génie des Procédés (LRGP), Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS), Grupo de Procesos Químicos y Bioquímicos [Universidad Nacional de Colombia], Departamento de Ingenieria Quimica y Ambiental [Universidad Nacional de Colombia] (DIQA), and Universidad Nacional de Colombia [Bogotà] (UNAL)-Universidad Nacional de Colombia [Bogotà] (UNAL)
Subjects: Renewable energy, Optimization problem, Computer science, 020209 energy, 02 engineering and technology, Management, Monitoring, Policy and Law, 7. Clean energy, Multi-objective optimization, 12. Responsible consumption, 020401 chemical engineering, Conceptual design, 11. Sustainability, 0202 electrical engineering, electronic engineering, information engineering, [SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering, 0204 chemical engineering, business.industry, [SDE.IE]Environmental Sciences/Environmental Engineering, Mechanical Engineering, Sustainability assessment, Pareto principle, Building and Construction, Environmental economics, General Energy, 13. Climate action, Hybrid energy system, Distributed generation, Inherent safety index, Sustainability, Inherent safety, business, Hydrogen, Decision-making
Abstract: International audience; The design of sustainable energy systems requires to enlarge the analysis beyond the traditional boundaries for including the economic, environmental, and societal needs and constraints in the decision-making process. In this regard, this work investigates the conceptual design of distributed energy systems by means of a multi-objective optimization strategy to simultaneously address the economic, environmental, and social aspects in the energy system design. Initially, the water consumption and the inherent safety indicators were introduced and evaluated through two single-objective optimization problems to enhance the analysis of the environmental and social dimensions of sustainability. Then, a framework including the total annualized cost, CO2 emissions, water consumption, grid dependence, and inherent safety index was used to perform the multi-objective analysis. To carry out a thorough and comprehensive analysis, four optimization problems including different combinations of the sustainability indicators were proposed and solved. The compromise among the objective functions was identified, and the obtained Pareto sets were explored for elucidating the changes in the design and operating conditions across the non-dominated solutions. According to results, the cost of energy can range between 0.37 and 0.63 €/kWh, the CO2 emissions can vary between 10.6 and 68.5 kgCO2/MWh, and the water consumption can be between 27.8 and 70.2 m3H2O/GWh depending on the evaluated objective. Moreover, it was determined that the safety of the energy system can be improved by increasing the use of the water electrolysis pathway to produce hydrogen and by reducing the capacity of the hydrogen storage unit.
Published: 2021
Full Text: View/download PDF

2. Methodology for Emulsion Design Based on Emulsion Science and Expert Knowledge. Part 2: An Application in the Cosmetics Sector

Author: Mauricio Camargo, Paulo César Narváez Rincón, Juliana Serna, Vincent Boly, Véronique Falk, Grupo de Procesos Químicos y Bioquímicos [Universidad Nacional de Colombia], Departamento de Ingenieria Quimica y Ambiental [Universidad Nacional de Colombia] (DIQA), Universidad Nacional de Colombia [Bogotà] (UNAL)-Universidad Nacional de Colombia [Bogotà] (UNAL), Equipe de Recherche sur les Processus Innovatifs (ERPI), Université de Lorraine (UL), Laboratoire Réactions et Génie des Procédés (LRGP), Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS), Ministerio de Ciencia, Tecnología e Innovación en Colombia (Minciencias) former Colciencias for funding through the program Doctorados Nacionales Convocatoria 617 - 2013., and Universidad Nacional de Colombia [Bogotà] (UNAL)
Subjects: Computer science, General Chemical Engineering, media_common.quotation_subject, ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION, Complex system, Emulsion formulation, formulation, 02 engineering and technology, early design stages, Cosmetics, Industrial and Manufacturing Engineering, 12. Responsible consumption, Task (project management), cosmetic products, [SPI]Engineering Sciences [physics], 020401 chemical engineering, Simple (abstract algebra), Chemical products, decision methodology, [SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering, 0204 chemical engineering, Process engineering, media_common, business.industry, Emulsion, General Chemistry, 021001 nanoscience & nanotechnology, chemical product design, Consumer Centered Chemical Products, 0210 nano-technology, business
Abstract: International audience; The design of microstructured chemical products such as emulsions is not a simple task because they are complex systems in which their components, structures, phenomena, and processes are highly interrelated. Any design decision must be made considering its multiple effects on the next stages of the design, production, use, and recycling of the product. The uncertainty and the impact of the decisions are more critical at early design/screening/exploratory stages, when information is scarce and main product characteristics are defined. This study presents an application of a design methodology for early design stages that considers the interrelation between design decisions in oil-in-water (O/W) emulsions. The methodology was explained in detail in the first part of the article containing the conceptual approach. In this second part, the methodology is exemplified through a case study of the cosmetics sector: the design of a moisturizing cream. The case is presented in two parts: first, the decision-making process following the three steps of methodology is explained. Then, the experimental results are presented and discussed. For the case study, the methodology helped to develop five conceptual alternatives of the product based on the use of a nonionic surfactant system, and prototypes were made and tested. It was found that the elements of methodology can be used for the generation of product alternatives that correspond to the design problem.
Published: 2021
Full Text: View/download PDF

3. Design of formulated products integrating heuristic knowledge and consumer assessment

Author: Laurent Wendling, Mauricio Camargo, Alvaro Orjuela, Javier A. Arrieta-Escobar, Fernando P. Bernardo, Laure Morel, Laboratoire Réactions et Génie des Procédés (LRGP), Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS), Equipe de Recherche sur les Processus Innovatifs (ERPI), Université de Lorraine (UL), GEPSI-PSE Group, CIEPQPF, Department of Chemical Engineering, University of Coimbra, Portugal, Grupo de Procesos Químicos y Bioquímicos [Universidad Nacional de Colombia], Departamento de Ingenieria Quimica y Ambiental [Universidad Nacional de Colombia] (DIQA), Universidad Nacional de Colombia [Bogotà] (UNAL)-Universidad Nacional de Colombia [Bogotà] (UNAL), Laboratoire d'Informatique Paris Descartes (LIPADE (URP_2517)), and Université de Paris (UP)
Subjects: cosmetic emulsion, Environmental Engineering, Computer science, General Chemical Engineering, product design, 02 engineering and technology, Fuzzy logic, 020401 chemical engineering, [SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering, Product (category theory), 0204 chemical engineering, Product design, business.industry, Heuristic, heuristic knowledge, skin moisturizer, Usability, 021001 nanoscience & nanotechnology, Industrial engineering, consumer assessment, 0210 nano-technology, Heuristics, business, Engineering design process, Realization (systems), Biotechnology
Abstract: International audience; This work proposes a systematic approach for the design of formulated products incorporating consumer assessment and heuristic knowledge. The methodology is divided into two main phases: Consumer assessment and product realization. In the first part, product attributes valued by consumers and their interactions are identified through usability tests performed on a reference product, and fuzzy integral analysis. In the second phase, alternative product formulations are generated using a mixed‐integer optimization approach, which incorporates heuristic rules regarding the choice of ingredients and their amounts. The results from the consumer assessment phase are transformed into additional heuristics and incorporated into the design. Different alternative formulations are generated at a lab‐scale, by using two commercial skin moisturizers as references. Those formulations that included additional heuristics are shown to be more similar to the references. As a result, the incorporation of consumer preferences significantly reduced the time and resources spent on the design process.
Published: 2020
Full Text: View/download PDF

4. Sustainability assessment for chemical product and process design during early design stages

Author: Paulo César Narváez Rincón, Mauricio Camargo, Alvaro Orjuela, Juliana Serna, Grupo de Procesos Químicos y Bioquímicos [Universidad Nacional de Colombia], Departamento de Ingenieria Quimica y Ambiental [Universidad Nacional de Colombia] (DIQA), Universidad Nacional de Colombia [Bogotà] (UNAL)-Universidad Nacional de Colombia [Bogotà] (UNAL), Equipe de Recherche sur les Processus Innovatifs (ERPI), and Université de Lorraine (UL)
Subjects: Globally Harmonized System of Classification and Labelling of Chemicals, Computer science, [SDE.IE]Environmental Sciences/Environmental Engineering, 020209 energy, Sustainability assessment, Multicriteria decision analysis, Process design, 02 engineering and technology, Glyceryl monostearate, 12. Responsible consumption, 020401 chemical engineering, Risk analysis (engineering), Conceptual design, Globally harmonized system of classification and labelling of chemicals (GHS), Sustainability, Chemical product and process design, 0202 electrical engineering, electronic engineering, information engineering, Sustainable design, Sustainability indicators, [SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering, Product (category theory), 0204 chemical engineering, Selection (genetic algorithm), Early design stages
Abstract: International audience; Nowadays, the importance of reaching sustainable production and consumption is broadly and globally recognized. Considering the chemical sector, a major challenge to incorporate a sustainability approach for product/process design is its inherent complexity. This is more difficult at early design stages when information is scarce, uncertainty is high, and the effects of decisions are huge. Considering this, the chapter presents a decision-making methodology applicable to the sustainable design of chemical products and processes at early design stages. The methodology proposes the use of indicators to assess the design alternatives on the three sustainability dimensions. Most of the proposed indicators were calculated based upon the H statements of the Globally Harmonized System of Classification and Labelling of Chemicals, which are available and easy to calculate. The incorporation of assessments is done based on Multicriteria Decision Analysis methods. The proposed methodology can become a rapid conceptual design tool for systematic decision-making at the early stages of product/process synthesis. The following sections explain the steps of the decision methodology, which are (1) problem definition, (2) assessment of alternatives, (3) integration of assessments and (4) final decision. Additionally, the methodology is exemplified through two case studies: the selection of a chemical route to produce glyceryl monostearate, and the selection of a formulation for a cosmetic application.
Published: 2020
Full Text: View/download PDF

5. Dendrimers as Competitors of Protein–Protein Interactions of the Intrinsically Disordered Nuclear Chromatin Protein NUPR1

Author: Patricia Santofimia-Castaño, Eduardo Fernandez-Megia, Bruno Rizzuti, José L. Neira, Olga Abian, Juan L. Iovanna, Juan Correa, Adrián Velázquez-Campoy, Instituto de Biología Molecular y Celular [Alicante, Spain], Universidad Miguel Hernández [Elche] (UMH), Grupo de Investigaciones en Estadística, Escuela de Estadística, Universidad Nacional de Colombia [Bogotà] (UNAL)-Universidad Nacional de Colombia [Bogotà] (UNAL), CNR-NANOTEC, Licryl-UOS Cosenza & CEMIF.Cal [Cosenza, Italy] (Department of Physics), Università della Calabria [Arcavacata di Rende] (Unical), Centre de Recherche en Cancérologie de Marseille (CRCM), Aix Marseille Université (AMU)-Institut Paoli-Calmettes, Fédération nationale des Centres de lutte contre le Cancer (FNCLCC)-Fédération nationale des Centres de lutte contre le Cancer (FNCLCC)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Unidad Asociada IQFR-CSIC-BIFI [Zaragoza, Spain], University of Zaragoza - Universidad de Zaragoza [Zaragoza]-Instituto de Biocomputación y Física de Sistemas Complejos - BIFI [Zaragoza, Spain], Centro Singular de Investigacion en Química Bioloxica e Materiais Moleculares [Santiago de Compostela, Spain], Universidade de Santiago de Compostela [Spain] (USC ), University of Calabria [Cosenza, Italy], Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut Paoli-Calmettes, and Fédération nationale des Centres de lutte contre le Cancer (FNCLCC)-Fédération nationale des Centres de lutte contre le Cancer (FNCLCC)-Aix Marseille Université (AMU)
Subjects: Dendrimers, Polymers and Plastics, In silico, [SDV]Life Sciences [q-bio], Bioengineering, 02 engineering and technology, [SDV.BC]Life Sciences [q-bio]/Cellular Biology, 010402 general chemistry, 01 natural sciences, Protein–protein interaction, Biomaterials, Dendrimer, Materials Chemistry, Basic Helix-Loop-Helix Transcription Factors, Molecule, Humans, chemistry.chemical_classification, Biomolecule, Cationic polymerization, 021001 nanoscience & nanotechnology, Affinities, Small molecule, 0104 chemical sciences, Neoplasm Proteins, chemistry, Biophysics, 0210 nano-technology
Abstract: International audience; NUPR1 is a protumoral multifunctional intrinsically disordered protein, which is activated during the acute phases of pancreatitis, interacting with several biomolecules through residues around Ala33 and Thr68. Because of the large size of this hot-spot, designed small molecules could be insufficient to modulate all NUPR1 functions. In this work, we studied NUPR1 interactions with dendrimers by using biophysical techniques and in silico methods. Our results, obtained with different functionalized dendrimers (anionic, cationic and neutral) and several of their generations, indicate that NUPR1 was bound to the dendrimers. Functionalities at the dendrimer periphery modulated the affinity for NUPR1, and for any dendrimer, the affinity increased with generation. The affinities of most of the dendrimers were in the range 4-40 × 103 M-1, and those of the [Gn]-PhCO2Na dendrimers were similar to those of NUPR1 for its natural partners (0.1-1 × 106 M-1). In all dendrimers, the residues of NUPR1 first affected upon binding were located around Ala33, indicating that NUPR1 employs the same hot-spot to recognize any natural or synthetic molecule.
Published: 2019
Full Text: View/download PDF

6. Quantum-well states at the surface of a heavy-fermion superconductor

Author: Edwin Herrera, Isabel Guillamón, Víctor Barrena, William J. Herrera, Jose Augusto Galvis, Alfredo Levy Yeyati, Ján Rusz, Peter M. Oppeneer, Georg Knebel, Jean Pascal Brison, Jacques Flouquet, Dai Aoki, Hermann Suderow, Departamento de Fisica de la Materia Condensada [Madrid] (FMC), Facultad de Ciencas [Madrid], Universidad Autónoma de Madrid (UAM)-Universidad Autónoma de Madrid (UAM), Universidad Nacional de Colombia [Bogotà] (UNAL), Universidad Central de Colombia, Universidad del Rosario [Bogota], Universidad Autónoma de Madrid (UAM), Uppsala Universitet [Uppsala], Department of Physics and Astronomy [Uppsala], Uppsala University, Instrumentation, Material and Correlated Electrons Physics (IMAPEC), PHotonique, ELectronique et Ingénierie QuantiqueS (PHELIQS), Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Grenoble Alpes (UGA)-Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Grenoble Alpes (UGA), Institute for Materials Research [Sendai] (IMR), and Tohoku University [Sendai]
Subjects: [PHYS]Physics [physics], [SPI]Engineering Sciences [physics], Multidisciplinary
Abstract: Two-dimensional electronic states at surfaces are often observed in simple wide-band metals such as Cu or Ag (refs. 1–4). Confinement by closed geometries at the nanometre scale, such as surface terraces, leads to quantized energy levels formed from the surface band, in stark contrast to the continuous energy dependence of bulk electron bands2,5–10. Their energy-level separation is typically hundreds of meV (refs. 3,6,11). In a distinct class of materials, strong electronic correlations lead to so-called heavy fermions with a strongly reduced bandwidth and exotic bulk ground states12,13. Quantum-well states in two-dimensional heavy fermions (2DHFs) remain, however, notoriously difficult to observe because of their tiny energy separation. Here we use millikelvin scanning tunnelling microscopy (STM) to study atomically flat terraces on U-terminated surfaces of the heavy-fermion superconductor URu2Si2, which exhibits a mysterious hidden-order (HO) state below 17.5 K (ref. 14). We observe 2DHFs made of 5f electrons with an effective mass 17 times the free electron mass. The 2DHFs form quantized states separated by a fraction of a meV and their level width is set by the interaction with correlated bulk states. Edge states on steps between terraces appear along one of the two in-plane directions, suggesting electronic symmetry breaking at the surface. Our results propose a new route to realize quantum-well states in strongly correlated quantum materials and to explore how these connect to the electronic environment.
Published: 2023
Full Text: View/download PDF

7. Multicriteria optimization of production conditions for a new phthalate-free PVC plasticizer

Author: Mauricio Camargo Pardo, Christian Fonteix, Oscar Yesid Suárez Palacios, Paulo César Narváez Rincón, Jean-Pierre Corriou, Grupo de Investigación en Procesos Químicos y Bioquímicos, Universidad Nacional de Colombia [Bogotà] (UNAL), Universidad Nacional de Colombia [Bogotà] (UNAL)-Universidad Nacional de Colombia [Bogotà] (UNAL), Laboratoire Réactions et Génie des Procédés (LRGP), Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS), Equipe de Recherche sur les Processus Innovatifs (ERPI), Université de Lorraine (UL), Colciencias, PREMER, and PREMER
Subjects: business.industry, General Chemical Engineering, Industrial scale, Phthalate, Pareto principle, Plasticizer, Evolutionary algorithm, 02 engineering and technology, [INFO.INFO-IA]Computer Science [cs]/Computer Aided Engineering, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, Multi-objective optimization, 0104 chemical sciences, chemistry.chemical_compound, chemistry, Production (economics), [SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering, Parametric identification, Glycerol-ester Optimization Plasticizer Bioresources Modelling, 0210 nano-technology, Process engineering, business, Mathematics
Abstract: International audience; Glycerol tri-isovalerate presents promising performance as new PVC plasticizer. To establish the conditions under which it must be produced on an industrial scale, a model of the process was developed and adjusted using experimental results and parametric identification with Fisher's maximum likelihood method. Tests were designed to study the influence of temperature, pressure, molar ratio and catalyst concentration on conversion. Also, a multiobjective optimization of the production conditions, in Pareto's sense, was performed using an evolutionary algorithm. Furthermore, a decision aid tool based on two different functions was utilized with the technique MACBETH to select the conditions for scale- up.
Published: 2014
Full Text: View/download PDF

8. Tracing the Supply Chain of Medicinal Wild Yam Species (Dioscorea spp.) in Cundinamarca, Colombia

Author: Darío Pérez, Lauren Raz, Universidad Nacional de Colombia [Bogotà] (UNAL), Plant Health Institute of Montpellier (UMR PHIM), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut de Recherche pour le Développement (IRD)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Agro Montpellier, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Université de Montpellier (UM), Patrimoines locaux, Environnement et Globalisation (PALOC), Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Sorbonne Université (SU), MOPGA doctoral fellowship and by Ministerio de Ciencia, Tecnología e Innovación of Colombia (Convocatoria 885-2020), and Program for Strengthening Interdisciplinary Alliances in Research and Creative Arts, 2018, project no. 42117
Subjects: non-timber forest products, Colombian medicinal flora, overharvesting, Plant Science, [SDE.BE]Environmental Sciences/Biodiversity and Ecology, Horticulture, folk medicine, supply chain
Abstract: Tracing the Supply Chain of Medicinal Wild Yam Species (Dioscoreaspp.) in Cundinamarca, Colombia. Wild yams (Dioscorea spp.) are widely distributed non-timber forest products that are traditionally used as medicine in Cundinamarca, Colombia, and represent a source of income for rural families in the region. The market for these native medicinal species has been growing due to their increasing popularity as a remedy for circulatory and blood problems; however, the supply and demand dynamics of this plant in the forest have not yet been documented. Through qualitative research methods, this study identifies the links and distribution of the wild yam supply chain in Cundinamarca and considers the implications for conservation and sustainability of the resource. Tuber collection was documented in forested areas in 14 municipalities in the Department of Cundinamarca. The tubers are destined for wholesale markets in Bogotá and are purchased by retailers from all over Cundinamarca, even those based in the municipalities from which the tubers were extracted. The collection, distribution, and consumption of Dioscorea species in Cundinamarca respond to growing demand and rely on extraction of the species directly from forest remnants within the Department; these could be at risk of overharvesting if management measures are not taken, or if participatory propagation programs that benefit harvesters and sellers are not implemented. This is the first study of the supply chain in an emerging new market for wild yams in Latin America. It highlights the dynamic, evolving nature of the medicinal plant trade from the local to the national scale, and beyond.
Published: 2022
Full Text: View/download PDF

9. Biodiesel production in a counter-current reactive extraction column: Modelling, parametric identification and optimisation

Author: R.D. Godoy-Silva, P.C. Narváez, J.G. Cadavid, Mauricio Camargo, Christian Fonteix, Grupo de Investigación en Procesos Químicos y Bioquímicos, Universidad Nacional de Colombia [Bogotà] (UNAL)-Universidad Nacional de Colombia [Bogotà] (UNAL), Equipe de Recherche sur les Processus Innovatifs (ERPI), Université de Lorraine (UL), Laboratoire Réactions et Génie des Procédés (LRGP), and Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Engineering, 020209 energy, General Chemical Engineering, 02 engineering and technology, 7. Clean energy, Industrial and Manufacturing Engineering, 020401 chemical engineering, Bioenergy, 0202 electrical engineering, electronic engineering, information engineering, Environmental Chemistry, [SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering, 0204 chemical engineering, Process engineering, Productivity, Biodiesel, Parametric identification, Waste management, business.industry, Reaction step, Extraction (chemistry), General Chemistry, [INFO.INFO-IA]Computer Science [cs]/Computer Aided Engineering, Reactive extraction, Scientific method, Yield (chemistry), Biodiesel production, Multi-criteria optimisation, business, Process modelling and simulation
Abstract: International audience; Reactive extraction is a potential alternative for biodiesel production, in which reaction and glycerol separation are simultaneous, increasing conversion, yield and process productivity. This paper presents a stepwise reaction-separation model for a counter-current reactive extraction column, used in homogeneous-base-catalyzed palm oil methanolysis, and the models' parameters are identified from the results of a set of experimental tests. In addition, multi-criteria optimisation of the process conditions was performed using an evolutionary algorithm. The optimum conditions provide for palm oil conversion of 97.7%, a yield to FAME of 99.5% and a process productivity of 1.4 m3 FAME h−1 m−3 in a single reaction step. Finally, a comparison of the process productivity with co-current and batch processes was made. As the counter-current reactive extraction process does not require the intermediate separation stages required in co-current and batch processes, its productivity is 1.5 and 6.9 times higher than those processes, respectively.
Published: 2013
Full Text: View/download PDF

10. Disrupted montane forest recovery hinders biodiversity conservation in the tropical Andes

Author: Tina Christmann, Ximena Palomeque, Dolors Armenteras, Sarah Jane Wilson, Yadvinder Malhi, Imma Oliveras Menor, University of Oxford, Universidad de Cuenca (UCUENCA), Universidad Nacional de Colombia [Bogotà] (UNAL), Botanique et Modélisation de l'Architecture des Plantes et des Végétations (UMR AMAP), and Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université de Montpellier (UM)
Subjects: Global and Planetary Change, Ecology, Forest restoration, Cloud forest, NDWI, Tropical montane forest, Landsat time series, Natural regeneration, [SDE.BE]Environmental Sciences/Biodiversity and Ecology, Forest transition, Google Earth Engine, Ecology, Evolution, Behavior and Systematics
Abstract: International audience; Aim: Andean montane forests are biodiversity hotspots and large carbon stores and they provide numerous ecosystem services. Following land abandonment after centuries of forest clearing for agriculture in the Andes, there is an opportunity for forest recovery. Field-based studies show that forests do not always recover. However, large-scale and long-term knowledge of recovery dynamics of Andean forests remains scarce. This paper analyses tropical montane forest recovery trajectories over a 15-year time frame at the landscape and tropical Andean scale to inform restoration planning. Methods: We first detect “potential recovery” as areas that have experienced a forest transition between 2000 and 2005. Then, we use Landsat time series analysis of the normalized difference water index (NDWI) to classify four “realized recovery” trajectories (“ongoing”, “arrested”, “disrupted” and “no recovery”) based on a sequential pattern of 5-yearly Z-score anomalies for 2005–2020. We compare these results against an analysis of change in tree cover to validate against other datasets. Results: Across the tropical Andes, we detected a potential recovery area of 274 km2 over the period. Despite increases in tree cover, most areas of the Andes remained in early successional states (10–25% tree cover), and NDWI levelled out after 5–10 years. Of all potential forest recovery areas, 22% showed “ongoing recovery”, 61% showed either “disrupted” or “arrested recovery”, and 17% showed “no recovery”. Our method captured forest recovery dynamics in a Peruvian arrested succession context and in landscape-scale tree-planting efforts in Ecuador. Main conclusions: Forest recovery across the Andes is mostly disrupted, arrested or unsuccessful, with consequences for biodiversity recovery and provision of ecosystem services. Low-recovery areas identified in this study might be good candidates for active restoration interventions in this UN Decade on Restoration. Future studies could determine restoration strategies and priorities and suggest management strategies at a local planning scale across key regions in the biodiversity hotspot.
Published: 2023
Full Text: View/download PDF

11. Removal of emerging contaminants from wastewater using advanced treatments. A review

Author: Nadia Morin-Crini, Eric Lichtfouse, Marc Fourmentin, Ana Rita Lado Ribeiro, Constantinos Noutsopoulos, Francesca Mapelli, Éva Fenyvesi, Melissa Gurgel Adeodato Vieira, Lorenzo A. Picos-Corrales, Juan Carlos Moreno-Piraján, Liliana Giraldo, Tamás Sohajda, Mohammad Mahmudul Huq, Jafar Soltan, Giangiacomo Torri, Monica Magureanu, Corina Bradu, Grégorio Crini, Laboratoire Chrono-environnement (UMR 6249) (LCE), Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC), Xi'an Jiaotong University (Xjtu), Centre européen de recherche et d'enseignement des géosciences de l'environnement (CEREGE), Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Collège de France (CdF (institution))-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Laboratoire de Physico-Chimie de l'Atmosphère (LPCA), Université du Littoral Côte d'Opale (ULCO), Universidade do Porto = University of Porto, National Technical University of Athens [Athens] (NTUA), Università degli Studi di Milano = University of Milan (UNIMI), Universidade Estadual de Campinas = University of Campinas (UNICAMP), Universidad Autónoma de Sinaloa (UAS), Universidad de los Andes [Bogota] (UNIANDES), Universidad Nacional de Colombia [Bogotà] (UNAL), University of Saskatchewan [Saskatoon] (U of S), Istituto di Chimica e Biochimica G. Ronzoni, National Institute for Lasers, Plasma, and Radiation Physics - INFLPR (ROMANIA), University of Bucharest, Faculty of Physics, and University of Bucharest (UniBuc)
Subjects: Biological technology, Oxidation processes, Emerging contaminants, [CHIM.POLY]Chemical Sciences/Polymers, [SDE.IE]Environmental Sciences/Environmental Engineering, Environmental Chemistry, Adsorption, Wastewater, [CHIM.OTHE]Chemical Sciences/Other, Advanced treatments
Abstract: International audience; The rise of emerging contaminants in waters challenges the scientific community and water treatment stakeholders to design remediation techniques that are simple, practical, inexpensive, effective, and environmentally friendly. Emerging contaminants include antibiotics, hormones, illicit drugs, endocrine disruptors, cosmetics, personal care products, pesticides, surfactants, industrial products, microplastics, nanoparticles, and nanomaterials. Removing those contaminants is not easy because classical wastewater treatment systems are not designed to handle emerging contaminants, and contaminants often occur as traces in complex organo-mineral mixtures. Here, we review advanced treatments for the removal of emerging contaminants in wastewater, with focus on adsorption-oriented processes using non-conventional adsorbents such as cyclo-dextrin polymers, metal-organic frameworks, molecularly imprinted polymers, chitosan, and nanocellulose. We describe biological-based technologies for the degradation and removal of emerging contaminants. Then, we present advanced oxidation processes as the most promising strategies because of their simplicity and efficiency.
Published: 2022
Full Text: View/download PDF

12. Distributed Koopman-Based Control of Improved Swing Equation

Author: Vladimir Toro, Duvan Tellez-Castro, Eduardo Mojica-Nava, Naly Rakoto-Ravalontsalama, Universidad Nacional de Colombia [Bogotà] (UNAL), Département Automatique, Productique et Informatique (IMT Atlantique - DAPI), IMT Atlantique (IMT Atlantique), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT), Conception, Pilotage, Surveillance et Supervision des systèmes (LS2N - équipe CPS3), Laboratoire des Sciences du Numérique de Nantes (LS2N), Institut National de Recherche en Informatique et en Automatique (Inria)-Centre National de la Recherche Scientifique (CNRS)-IMT Atlantique (IMT Atlantique), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-École Centrale de Nantes (Nantes Univ - ECN), Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ)-Nantes université - UFR des Sciences et des Techniques (Nantes univ - UFR ST), Nantes Université - pôle Sciences et technologie, Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ)-Nantes Université - pôle Sciences et technologie, Nantes Université (Nantes Univ)-Institut National de Recherche en Informatique et en Automatique (Inria)-Centre National de la Recherche Scientifique (CNRS)-IMT Atlantique (IMT Atlantique), and Nantes Université (Nantes Univ)
Subjects: [SPI]Engineering Sciences [physics], Control and Systems Engineering
Abstract: International audience; This paper presents a data-driven control for a set of synchronous generators based on the improved swing equation model by using the Koopman operator. First, the nonlinear dynamic of the generators is represented by a linear model in lifted space using extended dynamic mode decomposition (EDMD). Then, a linear predictor is built and used for the design of a model predictive control following three strategies: decentralized, non-cooperative, and cooperative. The Koopman representation of the generator is used to carry out an analysis, determining its eigenvalues. Several interconnected generators are controlled showing the performance of the interconnected system including voltage faults.
Published: 2022
Full Text: View/download PDF

13. Distributed Data-Driven Control of Transportation Networks

Author: Vladimir Toro, Eduardo Mojica-Nava, Naly Rakoto-Ravalontsalama, Universidad Nacional de Colombia [Bogotà] (UNAL), Département Automatique, Productique et Informatique (IMT Atlantique - DAPI), IMT Atlantique (IMT Atlantique), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT), Conception, Pilotage, Surveillance et Supervision des systèmes (LS2N - équipe CPS3), Laboratoire des Sciences du Numérique de Nantes (LS2N), Institut National de Recherche en Informatique et en Automatique (Inria)-Centre National de la Recherche Scientifique (CNRS)-IMT Atlantique (IMT Atlantique), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-École Centrale de Nantes (Nantes Univ - ECN), Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ)-Nantes université - UFR des Sciences et des Techniques (Nantes univ - UFR ST), Nantes Université - pôle Sciences et technologie, Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ)-Nantes Université - pôle Sciences et technologie, Nantes Université (Nantes Univ)-Institut National de Recherche en Informatique et en Automatique (Inria)-Centre National de la Recherche Scientifique (CNRS)-IMT Atlantique (IMT Atlantique), and Nantes Université (Nantes Univ)
Subjects: [SPI]Engineering Sciences [physics], Control and Systems Engineering
Abstract: International audience; This paper presents a data-driven control for a network of autonomous vehicles. The general scheme of cruise control is implemented for a set of vehicles defined by a nonlinear equation. Koopman operator allows representing the nonlinear system in the Koopman space (lifted space), suitable to get a linear observer that is used for distributed control instead of the nonlinear model. The proposed control simplified the control design and also allows to use a linear Model Predictive Control (MPC) in a distributed form.
Published: 2022
Full Text: View/download PDF

14. Water-soluble NHC Pd/Ni bimetallic nanoparticles for H/D exchange in aromatic amino-acids

Author: Oscar Suárez-Riaño, Gabriel Mencia, Simon Tricard, Jerome Esvan, Pier-Francesco Fazzini, Bruno Chaudret, Edwin A. Baquero, Universidad Nacional de Colombia [Bogotà] (UNAL), Laboratoire de physique et chimie des nano-objets (LPCNO), Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut de Chimie de Toulouse (ICT), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT)-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT)-Fédération de recherche « Matière et interactions » (FeRMI), Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Université de Toulouse (UT)-Institut de Recherche sur les Systèmes Atomiques et Moléculaires Complexes (IRSAMC), Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Centre interuniversitaire de recherche et d'ingenierie des matériaux (CIRIMAT), and Université de Toulouse (UT)
Subjects: [SPI]Engineering Sciences [physics], Materials Chemistry, Metals and Alloys, Ceramics and Composites, General Chemistry, Catalysis, Surfaces, Coatings and Films, Electronic, Optical and Magnetic Materials, [SPI.MAT]Engineering Sciences [physics]/Materials
Abstract: Labelling of amino-acids is important for the production of deuterated proteins. However, aromatic amino-acid reduction is a common undesired process with noble-metal nanocatalysts. In this work, we describe a new NHC-stabilized water-soluble Pd/Ni system able to perform H/D exchange reactions in an enantiospecific fashion without reducing the aromatic ring of phenylalanine and tyrosine thanks to a synergetic Pd-Ni effect.
Published: 2023
Full Text: View/download PDF

15. Stress-adaptive design of 2D contact interfaces with uniform pressure: A bio-inspired approach

Author: David Hernandez-Aristizabal, Santiago Arroyave-Tobon, Diego A. Garzon-Alvarado, Jean-Marc Linares, Institut des Sciences du Mouvement Etienne Jules Marey (ISM), Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS), Universidad Nacional de Colombia [Bogotà] (UNAL), and ANR-20-CE10-0008,BioDesign,Conception mécanique inspirée de la morphogenèse biologique(2020)
Subjects: stress adaptation, contact interface, Mechanics of Materials, Applied Mathematics, Mechanical Engineering, Modeling and Simulation, generative design, [SPI.MECA.BIOM]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Biomechanics [physics.med-ph], General Materials Science, [SDV.BDD.MOR]Life Sciences [q-bio]/Development Biology/Morphogenesis, Condensed Matter Physics, joint morphogenesis, bio–inspired design
Abstract: International audience; In this article, a bio-mimetic approach to the generative design of contact interfaces with uniform pressure distribution is explored. During the morphogenesis process, biological joints grow depending on the states of stress generating a shape adapted to the mechanical loads. This adaptation is driven by two main rules: shear stress inhibits growth, whereas cyclic hydrostatic compressive stress promotes it. In this work, we demonstrate that the stress-dependent growth rules of synovial joint morphogenesis can be applied to generate contact interfaces with uniform pressure in engineering applications. For that, we present a mathematical model that comprises a contact formulation and a bio-inspired growth function; the model is solved numerically using finite element methods. We analyse the impact of the growth rules of synovial joint development on the contact pressure distribution of two-dimensional contact interfaces. We study the parameter space of the bio-inspired growth function to fine-tune the model parameters. The model is tested in several cases with different boundary conditions and material properties. The results show that the proposed generative design process leads to contact interfaces that provide uniform contact pressure. A quantitative metric of the uniformity of the contact pressure is also defined. This metric indicates that the bio-inspired process generates geometries as good as those obtained with other methods present in the literature without the need of an initial shape close to the final one. Thus, this work demonstrates that synovial joint morphogenesis can be adapted for generative design in engineering.
Published: 2023
Full Text: View/download PDF

16. La gobernanza del agua, del páramo al piedemonte: Actores y planificación sobre el río Cusiana

Author: Mendieta Daza, Juan Felipe, Perez, Natacha, González Giraldo, Luis Fernando, Bautista Bulla, Eduard, Universidad Nacional de Colombia [Bogotà] (UNAL), Laboratoire Architecture, Ville, Urbanisme, Environnement (LAVUE), Université Paris 8 Vincennes-Saint-Denis (UP8)-École nationale supérieure d'architecture de Paris-La Villette (ENSAPLV), and HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-Université Paris Nanterre (UPN)-École nationale supérieure d'architecture de Paris Val-de-Seine (ENSA PVDS)-Centre National de la Recherche Scientifique (CNRS)-Ministère de la Culture (MC)
Subjects: [SHS.ARCHI]Humanities and Social Sciences/Architecture, space management, [SHS.ENVIR]Humanities and Social Sciences/Environmental studies, recurso hídrico, gobernabilidad, [SHS.GEO]Humanities and Social Sciences/Geography, planificación, actores, modelo económico
Abstract: International audience; Water governance processes are linked to four dimensions in the territory: social, economic, environmental and political. In this article, the components are superimposed on two antagonistic scenarios: the páramo as a mountainous ecosystem of the Cusiana river in the municipality of Aquitania (Boyacá), altered by the agricultural processes of onion and potato, and the municipality of Maní (Casanare), located at the end of the Cusiana river basin, with an ecosystem of cattle plains, high oil extraction and agro-industrial processes for African palm and rice crops. Some actors and their influence in the territory, expressed in their relationship with economic activities linked to extractivism and productivism,are recognized; Planning tools such as Territorial Development and Planning Plans (EOTs and POMCA) are analyzed considering water governance and the Sustainable Development Goals (SDGs).; Los procesos de gobernanza del agua están ligados a cuatro dimensiones en el territorio: social, económica, ambiental y política. En este artículo los componentes se superponen sobre dos escenarios antagónicos: el páramo como ecosiste-ma montañoso del río Cusiana en el municipio de Aquitania (Boyacá), alterado por los procesos agrícolas de la cebolla y la papa, y el municipio de Maní (Casanare), ubicado al final de la cuenca del río Cusiana, con un ecosistema de llanuras ganaderas, alta extracción de petróleo y procesos agroindus-triales para cultivos de palma africana y arroz. Se reconocen algunos actores y su influencia en el territorio, expresada en su relación con las actividades económicas ligadas al extrac-tivismo y al productivismo; se analizan herramientas de pla-nificación como Planes de Desarrollo y Ordenamiento Terri-torial (EOTs y POMCA), a la luz de la gobernanza del agua y los Objetivos de Desarrollo Sostenible (ODS).; Les processus de gouvernance de l’eau sont liés à quatre dimensions sur le territoire: sociale, économique, environnementale et politique. Dans cet article, les composants sont superposés sur deux scénarios antagonistes : le páramo, en tant qu’écosystème montagneux de la rivière Cusiana dans la municipalité d’Aquitania (Boyacá), altéré par les processus agricoles de l’oignon et de la pomme de terre, et la municipalité de Maní (Casanare), située à l’extrémité du bassin de la rivière Cusiana, avec un écosystème de plaines à bétail, une forte extraction d’huile et des processus agro-industriels pour la culture de la palme africaine et de riz. Certains acteurs et leur influence sur le territoire, exprimée dans leur rapport aux activités économiques liées à l’extractivisme et au productivisme, sont reconnus ; les outils de planification tels que les Schémas d’Aménagement et de Développement Territorial (EOT et POMCA) sont analysés à la lumière de la gouvernance de l’eau et des Objectifs de Développement Durable (ODD).
Published: 2022
Full Text: View/download PDF

17. N-Heterocyclic Carbene-Based Iridium and Ruthenium/Iridium Nanoparticles for the Hydrogen Isotope Exchange Reaction through C–H Bond Activations

Author: Alejandra Zuluaga-Villamil, Gabriel Mencia, Juan M. Asensio, Pier-Francesco Fazzini, Edwin A. Baquero, Bruno Chaudret, Universidad Nacional de Colombia [Bogotà] (UNAL), Laboratoire de physique et chimie des nano-objets (LPCNO), Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut de Chimie de Toulouse (ICT), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT)-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT)-Fédération de recherche « Matière et interactions » (FeRMI), Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3), and Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Inorganic Chemistry, Aromatic compounds, Metals, Organic Chemistry, [CHIM]Chemical Sciences, Transition metals, Physical and Theoretical Chemistry, Ligands, Bimetals
Abstract: Suppressing aromatic ring reduction in noble-metal-catalyzed H/D exchange reactions remains a challenge. This drawback may be overcome by finding a synergetic effect in bimetallic nanoparticles (NPs). Herein, we report the synthesis of bimetallic lipo- and water-soluble Ru/Ir NPs. They were characterized by state-of-the-art techniques such as transmission electron microscopy (TEM), high-resolution TEM, attenuated total reflection Fourier transform infrared, powder X-ray diffraction, and solid-state nuclear magnetic resonance. These NPs were found to disperse in both organic and aqueous media because of the stabilization and coordination of adequate N-heterocyclic carbene (NHC) ligands to the NP surface. They were tested in the deuteration of 2-phenylpyridine, 2-methyl-naphthylamine, 5,6,7,8-tetrahydro-naphthtylamine, and l-lysine using D2 as the isotopic source. Bimetallic NPs showed an unusual selectivity toward the H/D exchange of 2-phenylpyridine, deuterating not only the expected C–H positions close to the N atom but also remote positions on the heterocycle. Additionally, reduction of the aromatic rings, which is a common undesired side reaction catalyzed by Ru NPs, was not observed. These outcomes, rationalized by a synergetic effect of both metals, are enhanced when NHC ligands are on the surface in comparison to model catalysts stabilized by polyvinylpyrrolidone. With regard to non-aromatic substrates, CH2-α and CH2-ε positions with respect to the amino acid group of l-lysine were fully deuterated, while moderate deuteration of the γ position was observed as the iridium content was increased in the bimetallic system.
Published: 2022
Full Text: View/download PDF

18. A Tensor-Based Population Value Decomposition to Explain Rectal Toxicity after Prostate Cancer Radiotherapy

Author: Renaud de Crevoisier, Juan David Ospina, Frederic Commandeur, Juan Carlos Correa, Pascal Haigron, Richard Rios, G. Dréan, Antoine Simon, Oscar Acosta, Laboratoire Traitement du Signal et de l'Image (LTSI), Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Institut National de la Santé et de la Recherche Médicale (INSERM), Grupo de Investigaciones en Estadística, Escuela de Estadística, Universidad Nacional de Colombia [Bogotà] (UNAL)-Universidad Nacional de Colombia [Bogotà] (UNAL), IReSP - Plan Cancer 2009-20133 Call (No. C13005N5), Université de Rennes (UR)-Institut National de la Santé et de la Recherche Médicale (INSERM), and Ospina, Juan David
Subjects: Male, Oncology, medicine.medical_specialty, medicine.medical_treatment, Population, [SDV.CAN]Life Sciences [q-bio]/Cancer, Dose distribution, Article, 030218 nuclear medicine & medical imaging, Cohort Studies, 03 medical and health sciences, Prostate cancer, 0302 clinical medicine, [SDV.CAN] Life Sciences [q-bio]/Cancer, Internal medicine, medicine, Humans, Radiation Injuries, education, education.field_of_study, business.industry, Rectal toxicity, Prostatic Neoplasms, medicine.disease, 3. Good health, Radiation therapy, Diffusion Tensor Imaging, Rectal Diseases, Treatment Outcome, 030220 oncology & carcinogenesis, Cohort, Radiotherapy, Conformal, Gastrointestinal Hemorrhage, business, Radiotherapy, Image-Guided, Diffusion MRI, Cohort study
Abstract: International audience; In prostate cancer radiotherapy the association between the dose distribution and the occurrence of undesirable side-effects is yet to be revealed. In this work a method to perform population analysis by comparing the dose distributions is proposed. The method is a tensor-based approach that generalises an existing method for 2D images and allows for the highlighting of over irradiated zones correlated with rectal bleeding after prostate cancer radiotherapy. Thus, the aim is to contribute to the elucidation of the dose patterns correlated with rectal toxicity. The method was applied to a cohort of 63 patients and it was able to build up a dose pattern characterizing the difference between patients presenting rectal bleeding after prostate cancer radiotherapy and those who did not.
Published: 2013
Full Text: View/download PDF

19. Methodology To Predict PVC Plasticization Using Molecular Simulation by Pairs

Author: Mauricio Camargo Pardo, Paulo César Narváez Rincón, Oscar Yesid Suárez Palacios, Jean-Pierre Corriou, Grupo de Investigación en Procesos Químicos y Bioquímicos, Universidad Nacional de Colombia [Bogotà] (UNAL), Universidad Nacional de Colombia [Bogotà] (UNAL)-Universidad Nacional de Colombia [Bogotà] (UNAL), Equipe de Recherche sur les Processus Innovatifs (ERPI), Université de Lorraine (UL), Laboratoire Réactions et Génie des Procédés (LRGP), Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS), and Colciencias-PREMER
Subjects: Isosorbide, Materials science, General Chemical Engineering, Plasticization, Plasticizer, Molecular simulation, 02 engineering and technology, General Chemistry, [INFO.INFO-IA]Computer Science [cs]/Computer Aided Engineering, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, Industrial and Manufacturing Engineering, molecular simulation, 0104 chemical sciences, PVC, Chemical engineering, Phtalates, medicine, Molecule, Organic chemistry, Experimental work, [SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering, 0210 nano-technology, medicine.drug
Abstract: International audience; This paper presents a methodology to predict PVC plasticization using molecular simulation of binary interaction between molecules in three kinds of pairs: plasticizer-plasticizer, PVC-PVC, and PVC-plasticizer. The plasticization prediction is based on three complementary criteria calculated from thermodynamic data, obtained from molecular simulation. The methodology was applied to a group of commercial products and to potential new plasticizers, specifically glycerol and isosorbide esters. The predictions were contrasted with the experimental performance evaluated with several tests usually employed in PVC industry. The methodology can be used to test molecular structures and to reduce the experimental work necessary for the evaluation of new PVC plasticizers.
Published: 2013
Full Text: View/download PDF

20. Left Ventricle Quantification Challenge: A Comprehensive Comparison and Evaluation of Segmentation and Regression for Mid-Ventricular Short-Axis Cardiac MR Data

Author: Georgios Tziritas, Yeonggul Jang, Jin Ma, Fumin Guo, Quanzheng Li, Tiancong Hua, Xiang Li, Lihong Liu, Angélica Atehortúa, James R. Clough, Zhiqiang Hu, Eric Kerfoot, Vicente Grau, Enzo Ferrante, Matthew Ng, Guanyu Yang, Mireille Garreau, Alejandro Debus, Elias Grinias, Jiahui Li, Wufeng Xue, Shuo Li, Wenjun Yan, Ilkay Oksuz, Hao Xu, Shenzhen University, Beijing University of Posts and Telecommunications (BUPT), Peking University [Beijing], King‘s College London, Istanbul Technical University (ITÜ), University of Oxford [Oxford], University of Toronto, Massachusetts General Hospital [Boston], University of Crete [Heraklion] (UOC), Fudan University [Shanghai], Universidad Nacional de Colombia [Bogotà] (UNAL), Laboratoire Traitement du Signal et de l'Image (LTSI), Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Institut National de la Santé et de la Recherche Médicale (INSERM), Centre de Recherche en Information Biomédicale sino-français (CRIBS), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Southeast University [Jiangsu]-Institut National de la Santé et de la Recherche Médicale (INSERM), Yonsei University, Universidad Nacional del Litoral [Santa Fe] (UNL), Laboratory of Image Science and Technology [Nanjing] (LIST), Southeast University [Jiangsu]-School of Computer Science and Engineering, University of Western Ontario (UWO), The paper is partially supported by the Natural Science Foundation of China under Grants 61801296. The workof Eric Kerfoot was supported by an EPSRC programmeGrant (EP/P001009/1) and the Wellcome EPSRC Centre for Medical Engineering at the School of Biomedical Engineering and Imaging Sciences, Kings College London (WT203148/Z/16/Z). The work of Angelica Atehortua was supported by Colciencias-Colombia, Grant No. 647 (2015 call for National PhD studies) and Université de Rennes 1. The work of Alejandro Debus was supported by the Santa Fe Science, Technology and Innovation Agency (AS ACTEI), Government of the Province of Santa Fe, through Project AC-00010-18,Resolution N 117/14., University of Oxford, Université de Rennes (UR)-Institut National de la Santé et de la Recherche Médicale (INSERM), Université de Rennes (UR)-Southeast University [Jiangsu]-Institut National de la Santé et de la Recherche Médicale (INSERM), and Jonchère, Laurent
Subjects: Short axis, [SDV.IB.IMA]Life Sciences [q-bio]/Bioengineering/Imaging, Computer science, Heart Ventricles, Magnetic Resonance Imaging, Cine, Article, 030218 nuclear medicine & medical imaging, 03 medical and health sciences, 0302 clinical medicine, [SDV.MHEP.CSC]Life Sciences [q-bio]/Human health and pathology/Cardiology and cardiovascular system, Health Information Management, medicine, Humans, Segmentation, Electrical and Electronic Engineering, [SPI.SIGNAL] Engineering Sciences [physics]/Signal and Image processing, Ground truth, Cardiac cycle, business.industry, Heart, Pattern recognition, Image segmentation, Magnetic Resonance Imaging, Regression, [SDV.MHEP.CSC] Life Sciences [q-bio]/Human health and pathology/Cardiology and cardiovascular system, Computer Science Applications, [SDV.IB.IMA] Life Sciences [q-bio]/Bioengineering/Imaging, medicine.anatomical_structure, Ventricle, 030220 oncology & carcinogenesis, Artificial intelligence, business, [SPI.SIGNAL]Engineering Sciences [physics]/Signal and Image processing, Cardiac phase, Biotechnology
Abstract: Automatic quantification of the left ventricle (LV) from cardiac magnetic resonance (CMR) images plays an important role in making the diagnosis procedure efficient, reliable, and alleviating the laborious reading work for physicians. Considerable efforts have been devoted to LV quantification using different strategies that include segmentation-based (SG) methods and the recent direct regression (DR) methods. Although both SG and DR methods have obtained great success for the task, a systematic platform to benchmark them remains absent because of differences in label information during model learning. In this paper, we conducted an unbiased evaluation and comparison of cardiac LV quantification methods that were submitted to the Left Ventricle Quantification (LVQuan) challenge, which was held in conjunction with the Statistical Atlases and Computational Modeling of the Heart (STACOM) workshop at the MICCAI 2018. The challenge was targeted at the quantification of 1) areas of LV cavity and myocardium, 2) dimensions of the LV cavity, 3) regional wall thicknesses (RWT), and 4) the cardiac phase, from mid-ventricle short-axis CMR images. First, we constructed a public quantification dataset Cardiac-DIG with ground truth labels for both the myocardium mask and these quantification targets across the entire cardiac cycle. Then, the key techniques employed by each submission were described. Next, quantitative validation of these submissions were conducted with the constructed dataset. The evaluation results revealed that both SG and DR methods can offer good LV quantification performance, even though DR methods do not require densely labeled masks for supervision. Among the 12 submissions, the DR method LDAMT offered the best performance, with a mean estimation error of 301 mm $^2$ for the two areas, 2.15 mm for the cavity dimensions, 2.03 mm for RWTs, and a 9.5% error rate for the cardiac phase classification. Three of the SG methods also delivered comparable performances. Finally, we discussed the advantages and disadvantages of SG and DR methods, as well as the unsolved problems in automatic cardiac quantification for clinical practice applications.
Published: 2021
Full Text: View/download PDF

21. Conflicting Rights and Interests in Indigenous Territories. The Limits of Exploitation and Conservation of Natural Resources

Author: Ceballos-Medina, Marcela, Petit, Olivier, Universidad Nacional de Colombia [Bogotà] (UNAL), Centre Lillois d’Études et de Recherches Sociologiques et Économiques - UMR 8019 (CLERSÉ), Université de Lille-Centre National de la Recherche Scientifique (CNRS), Université de Lille, CNRS, Univ. Littoral Côte d’Opale, Universidad Nacional de Colombia [Bogotà] [UNAL], and Centre Lillois d’Études et de Recherches Sociologiques et Économiques - UMR 8019 [CLERSÉ]
Subjects: [SHS.ECO]Humanities and Social Sciences/Economics and Finance, ComputingMilieux_MISCELLANEOUS
Abstract: International audience
Published: 2012

22. Data-Driven Distributed Voltage Control for Microgrids: A Koopman-based Approach

Author: Vladimir Toro, Duvan Tellez-Castro, Eduardo Mojica-Nava, Naly Rakoto-Ravalontsalama, Universidad Nacional de Colombia [Bogotà] (UNAL), Département Automatique, Productique et Informatique (IMT Atlantique - DAPI), IMT Atlantique (IMT Atlantique), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT), Conception, Pilotage, Surveillance et Supervision des systèmes (LS2N - équipe CPS3), Laboratoire des Sciences du Numérique de Nantes (LS2N), Institut National de Recherche en Informatique et en Automatique (Inria)-Centre National de la Recherche Scientifique (CNRS)-IMT Atlantique (IMT Atlantique), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-École Centrale de Nantes (Nantes Univ - ECN), Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ)-Nantes université - UFR des Sciences et des Techniques (Nantes univ - UFR ST), Nantes Université - pôle Sciences et technologie, Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ)-Nantes Université - pôle Sciences et technologie, Nantes Université (Nantes Univ)-Institut National de Recherche en Informatique et en Automatique (Inria)-Centre National de la Recherche Scientifique (CNRS)-IMT Atlantique (IMT Atlantique), and Nantes Université (Nantes Univ)
Subjects: [SPI]Engineering Sciences [physics], FOS: Electrical engineering, electronic engineering, information engineering, Energy Engineering and Power Technology, Systems and Control (eess.SY), Electrical and Electronic Engineering, Electrical Engineering and Systems Science - Systems and Control
Abstract: This paper presents a distributed data-driven control to regulate the voltage in an alternate current microgrid (MG). Following the hierarchical control frame for MGs, a secondary control for voltage is designed with a data-driven strategy using the Koopman operator. The Koopman operator approach represents the nonlinear behavior of voltage as a linear problem in the space of observables or lifted space. The representation in the lifted space is used together with linear consensus to design a model predictive control (MPC). The complete algorithm is proved in an MG model including changes in load, transmission lines, and the communication graph. The data-driven model regulates voltage using a distributed approach based only on local measurements, and includes reactive power constraints and control cost minimization., Title: This paper is an extention of previos results of another article that uses koopman for the MGs control Authors: Vladimir Toroa, Duvan Tellez-Castro, Eduardo Mojica-Nava, Naly Rakoto-Ravalontsalama Comments: 13 pages, 21 This paper uses the Koopman operator to identify an alternate current MG, the uses a linear predictor for MPC design
Published: 2022
Full Text: View/download PDF

23. Worldwide cases of water pollution by emerging contaminants: a review

Author: Nadia Morin-Crini, Eric Lichtfouse, Guorui Liu, Vysetti Balaram, Ana Rita Lado Ribeiro, Zhijiang Lu, Friederike Stock, Eric Carmona, Margarida Ribau Teixeira, Lorenzo A. Picos-Corrales, Juan Carlos Moreno-Piraján, Liliana Giraldo, Cui Li, Abhishek Pandey, Didier Hocquet, Giangiacomo Torri, Grégorio Crini, Laboratoire Chrono-environnement (UMR 6249) (LCE), Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC), Centre européen de recherche et d'enseignement des géosciences de l'environnement (CEREGE), Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Collège de France (CdF (institution))-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Xi'an Jiaotong University (Xjtu), University of Chinese Academy of Sciences [Beijing] (UCAS), National Geophysical Research Institute [Hyderabad] (NGRI), Universidade do Porto = University of Porto, Universidad de los Andes [Bogota] (UNIANDES), Universidad Nacional de Colombia [Bogotà] (UNAL), and Jiwaji University
Subjects: polybrominated diphenyl ethers, Hospital effluents, polychlorinated biphenyls, Surfactants, Microplastics, Industrial wastewaters, Cosmetics, Aquaculture, Wastewater, Food packaging, Antibiotics, Wastewater treatment plants, Environmental Chemistry, Pesticides, Rare earth elements, Metalloids, Nanomaterials, emerging contaminants, Emerging contaminants, Persistent organic pollutants, Substances of global interest, Estrogens, Antidepressants, Food additives, Alkylphenols, Pesticide, livestock, Water pollution, Personal care products, Pharmaceuticals, Domestic discharges, Pathogens, Dibenzofurans, [SDE.BE]Environmental Sciences/Biodiversity and Ecology, [CHIM.OTHE]Chemical Sciences/Other, Water contamination
Abstract: Water contamination by emerging contaminants is increasing in the context of rising urbanization, industrialization, and agriculture production. Emerging contaminants refers to contaminants for which there is currently no regulation requiring monitoring or public reporting of their presence in our water supply or wastewaters. There are many emerging contaminants such as pesticides, pharmaceuticals, drugs, cosmetics, personal care products, surfactants, cleaning products, industrial formulations and chemicals, food additives, food packaging, metalloids, rare earth elements, nanomaterials, microplastics, and pathogens. The main sources of emerging contaminants are domestic discharges, hospital effluents, industrial wastewaters, runoff from agriculture, livestock and aquaculture, and landfill leachates. In particular, effluents from municipal wastewater treatment plants are major contributors to the presence of emerging contaminants in waters. Although many chemicals have been recently regulated as priority hazardous substances, conventional plants for wastewater and drinking water treatment were not designed to remove most emerging contaminants. Here, we review key examples of contamination in China, Portugal, Mexico, Colombia, and Brazil. Examples include persistent organic pollutants such as polychlorinated biphenyls, dibenzofurans, and polybrominated diphenyl ethers, in lake and ocean ecosystems in China; emerging contaminants such as alkylphenols, natural and synthetic estrogens, antibiotics, and antidepressants in Portuguese rivers; and pharmaceuticals, hormones, cosmetics, personal care products, and pesticides in Mexican, Brazilian, and Colombian waters. All continents are affected by these contaminants. Wastewater treatment plants should therefore be upgraded, e.g., by addition of tertiary treatment systems, to limit environmental pollution. info:eu-repo/semantics/publishedVersion
Published: 2022
Full Text: View/download PDF

24. Predicting attitudinal and behavioral responses to COVID-19 pandemic using machine learning

Author: Tomislav Pavlović, Flavio Azevedo, Koustav De, Julián C Riaño-Moreno, Marina Maglić, Theofilos Gkinopoulos, Patricio Andreas Donnelly-Kehoe, César Payán-Gómez, Guanxiong Huang, Jaroslaw Kantorowicz, Michèle D Birtel, Philipp Schönegger, Valerio Capraro, Hernando Santamaría-García, Meltem Yucel, Agustin Ibanez, Steve Rathje, Erik Wetter, Dragan Stanojević, Jan-Willem van Prooijen, Eugenia Hesse, Christian T Elbaek, Renata Franc, Zoran Pavlović, Panagiotis Mitkidis, Aleksandra Cichocka, Michele Gelfand, Mark Alfano, Robert M Ross, Hallgeir Sjåstad, John B Nezlek, Aleksandra Cislak, Patricia Lockwood, Koen Abts, Elena Agadullina, David M Amodio, Matthew A J Apps, John Jamir Benzon Aruta, Sahba Besharati, Alexander Bor, Becky Choma, William Cunningham, Waqas Ejaz, Harry Farmer, Andrej Findor, Biljana Gjoneska, Estrella Gualda, Toan L D Huynh, Mostak Ahamed Imran, Jacob Israelashvili, Elena Kantorowicz-Reznichenko, André Krouwel, Yordan Kutiyski, Michael Laakasuo, Claus Lamm, Jonathan Levy, Caroline Leygue, Ming-Jen Lin, Mohammad Sabbir Mansoor, Antoine Marie, Lewend Mayiwar, Honorata Mazepus, Cillian McHugh, Andreas Olsson, Tobias Otterbring, Dominic Packer, Jussi Palomäki, Anat Perry, Michael Bang Petersen, Arathy Puthillam, Tobias Rothmund, Petra C Schmid, David Stadelmann, Augustin Stoica, Drozdstoy Stoyanov, Kristina Stoyanova, Shruti Tewari, Bojan Todosijević, Benno Torgler, Manos Tsakiris, Hans H Tung, Radu Gabriel Umbreș, Edmunds Vanags, Madalina Vlasceanu, Andrew J Vonasch, Yucheng Zhang, Mohcine Abad, Eli Adler, Hamza Alaoui Mdarhri, Benedict Antazo, F Ceren Ay, Mouhamadou El Hady Ba, Sergio Barbosa, Brock Bastian, Anton Berg, Michał Białek, Ennio Bilancini, Natalia Bogatyreva, Leonardo Boncinelli, Jonathan E Booth, Sylvie Borau, Ondrej Buchel, Chrissie Ferreira de Carvalho, Tatiana Celadin, Chiara Cerami, Hom Nath Chalise, Xiaojun Cheng, Luca Cian, Kate Cockcroft, Jane Conway, Mateo A Córdoba-Delgado, Chiara Crespi, Marie Crouzevialle, Jo Cutler, Marzena Cypryańska, Justyna Dabrowska, Victoria H Davis, John Paul Minda, Pamala N Dayley, Sylvain Delouvée, Ognjan Denkovski, Guillaume Dezecache, Nathan A Dhaliwal, Alelie Diato, Roberto Di Paolo, Uwe Dulleck, Jānis Ekmanis, Tom W Etienne, Hapsa Hossain Farhana, Fahima Farkhari, Kristijan Fidanovski, Terry Flew, Shona Fraser, Raymond Boadi Frempong, Jonathan Fugelsang, Jessica Gale, E Begoña García-Navarro, Prasad Garladinne, Kurt Gray, Siobhán M Griffin, Bjarki Gronfeldt, June Gruber, Eran Halperin, Volo Herzon, Matej Hruška, Matthias F C Hudecek, Ozan Isler, Simon Jangard, Frederik Jørgensen, Oleksandra Keudel, Lina Koppel, Mika Koverola, Anton Kunnari, Josh Leota, Eva Lermer, Chunyun Li, Chiara Longoni, Darragh McCashin, Igor Mikloušić, Juliana Molina-Paredes, César Monroy-Fonseca, Elena Morales-Marente, David Moreau, Rafał Muda, Annalisa Myer, Kyle Nash, Jonas P Nitschke, Matthew S Nurse, Victoria Oldemburgo de Mello, M Soledad Palacios-Galvez, Yafeng Pan, Zsófia Papp, Philip Pärnamets, Mariola Paruzel-Czachura, Silva Perander, Michael Pitman, Ali Raza, Gabriel Gaudencio Rêgo, Claire Robertson, Iván Rodríguez-Pascual, Teemu Saikkonen, Octavio Salvador-Ginez, Waldir M Sampaio, Gaia Chiara Santi, David Schultner, Enid Schutte, Andy Scott, Ahmed Skali, Anna Stefaniak, Anni Sternisko, Brent Strickland, Jeffrey P Thomas, Gustav Tinghög, Iris J Traast, Raffaele Tucciarelli, Michael Tyrala, Nick D Ungson, Mete Sefa Uysal, Dirk Van Rooy, Daniel Västfjäll, Joana B Vieira, Christian von Sikorski, Alexander C Walker, Jennifer Watermeyer, Robin Willardt, Michael J A Wohl, Adrian Dominik Wójcik, Kaidi Wu, Yuki Yamada, Onurcan Yilmaz, Kumar Yogeeswaran, Carolin-Theresa Ziemer, Rolf A Zwaan, Paulo Sergio Boggio, Ashley Whillans, Paul A M Van Lange, Rajib Prasad, Michal Onderco, Cathal O'Madagain, Tarik Nesh-Nash, Oscar Moreda Laguna, Emily Kubin, Mert Gümren, Ali Fenwick, Arhan S Ertan, Michael J Bernstein, Hanane Amara, Jay Joseph Van Bavel, Brain and Cognition, Public Administration, Pavlovic, Tomislav, Avezedo, Flávio, De, Koustav, Maglić, Marina, Donnelly-Kehoe, Patricio Andreas, Payán-Gómez, César, Van Bavel, Jay J., Schmid, Petra Claudia, Crouzevialle, Marie, Willardt, Robin, et al., Ivo Pilar Institute of Social Sciences, University of Cambridge [UK] (CAM), University of Kentucky (UK), Universidad El Bosque [Bogota], University of Crete [Heraklion] (UOC), Universidad del Rosario [Bogota], Universidad Nacional de Colombia [Bogotà] (UNAL), City University of Hong Kong [Hong Kong] (CUHK), Universiteit Leiden, University of Greenwich, University of St Andrews [Scotland], Middlesex University [London], Pontifical Xavierian University, Duke University [Durham], Universidad Adolfo Ibáñez [Santiago], University of California (UC), Trinity College Dublin, Stockholm School of Economics (SSE), University of Belgrade [Belgrade], Vrije Universiteit Amsterdam [Amsterdam] (VU), Universidad Mayor de San Andrés (UMSA), Aarhus University [Aarhus], University of Kent [Canterbury], Stanford University, Macquarie University, Norwegian School of Economics and Business Administration, SWPS University of Social Sciences and Humanities (SWPS), University of Birmingham [Birmingham], University of Oxford, Catholic University of Leuven - Katholieke Universiteit Leuven (KU Leuven), Vysšaja škola èkonomiki = National Research University Higher School of Economics [Moscow] (HSE), University of Amsterdam [Amsterdam] (UvA), Sunway University [Malaysia], University of the Witwatersrand [Johannesburg] (WITS), University of Toronto, National University of Sciences and Technology [Islamabad] (NUST), Comenius University in Bratislava, Macedonian Academy of Sciences and Arts [Skopje, North Macedonia] (MASA), Universidad de Huelva, University of Southampton, BRAC University, The Hebrew University of Jerusalem (HUJ), Erasmus University Rotterdam, Kieskompas, Helsingin yliopisto = Helsingfors universitet = University of Helsinki, University of Vienna [Vienna], Reichman University [Herzliya], Aalto University, Universidad Nacional Autónoma de México = National Autonomous University of Mexico (UNAM), National Taiwan University [Taiwan] (NTU), HEMS School, BI Norwegian Business School [Oslo], University of Limerick (UL), Karolinska Institutet [Stockholm], University of Agder (UIA), Lehigh University [Bethlehem], Monk Prayogshala, Friedrich-Schiller-Universität = Friedrich Schiller University Jena [Jena, Germany], Eidgenössische Technische Hochschule Zürich - Swiss Federal Institute of Technology in Zürich (ETH Zurïch), University of Bayreuth, National School of Political and Administrative Studies (SNSPA), Plovdiv University 'Paisii Hilendarski', Indian Institute of Management Indore (IMM Indore), Institute of Social Sciences Belgrade, Queensland University of Technology [Brisbane] (QUT), Royal Holloway [University of London] (RHUL), University of London [London], National University of Political Studies and Public Administration, University of Latvia (LU), New York University [New York] (NYU), NYU System (NYU), University of Canterbury [Christchurch], Hebei University of Technology [Tianjin], Université Mohammed VI Polytechnique [Ben Guerir] (UM6P), AnsuR Technologies [Fornebu], Université Cheikh Anta Diop [Dakar, Sénégal] (UCAD), Victoria University [Melbourne], University of Wrocław [Poland] (UWr), IMT Institute for Advanced Studies [Lucca], Université de Florence, Università degli Studi di Firenze = University of Florence (UniFI), London School of Economics and Political Science (LSE), TBS Education, Slovak Academy of Science [Bratislava] (SAS), Santa Catarina State University (UDESC), University of Bologna/Università di Bologna, Tribhuvan University, Shenzhen Univerisity [Shenzhen], University of Virginia, Université Toulouse Capitole (UT Capitole), Université de Toulouse (UT), University of Western Ontario (UWO), Université de Rennes 2 (UR2), Laboratoire de Psychologie Sociale et Cognitive (LAPSCO), Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA), University of British Columbia (UBC), University of Queensland [Brisbane], Pennsylvania State University (Penn State), Penn State System, Westfälische Wilhelms-Universität Münster = University of Münster (WWU), The University of Sydney, University of Waterloo [Waterloo], University of North Carolina [Chapel Hill] (UNC), University of North Carolina System (UNC), University of Colorado [Boulder], University of Regensburg, Kyiv School of economic (KSE), Linköping University (LIU), Monash University [Clayton], Ansbach University of Applied Sciences, Ludwig Maximilian University [Munich] (LMU), Department of Management - London School of Economics and Political Science (LSE), Questrom School of Business, Boston University [Boston] (BU), Dublin City University [Dublin] (DCU), University of Auckland [Auckland], Maria Curie-Sklodowska University (UMCS), City University of New York [New York] (CUNY), University of Alberta, Australian National University (ANU), University of Silesia in Katowice, Universidad Complutense de Madrid = Complutense University of Madrid [Madrid] (UCM), Zhejiang University, Mackenzie Presbyterian University [São Paulo] (UPM), NYU Department of Psychology [New-York University], NYU System (NYU)-NYU System (NYU), University of Turku, City College of New York [CUNY] (CCNY), University of Groningen [Groningen], Carleton University, Département d'Etudes Cognitives - ENS Paris (DEC), École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL), Faculté de Gouvernance, Sciences Économiques et Sociales [UM6P] (FGSES), University College of London [London] (UCL), Susquehanna University, University of Antwerp (UA), University of Exeter, University of Koblenz-Landau, Nicolaus Copernicus University [Toruń], University of California [San Diego] (UC San Diego), Kyushu University, Kadir Has University (KHAS), Harvard Business School, Harvard University, Vidyasagar College For Women, Koç University, Hult International Business School, Boǧaziçi üniversitesi = Boğaziçi University [Istanbul], Penn State Abington, Pennsylvania Commonwealth System of Higher Education (PCSHE)-Penn State System, Communication Science, Network Institute, Communication Choices, Content and Consequences (CCCC), Social Psychology, IBBA, A-LAB, University of St Andrews. Philosophy, University of St Andrews. School of Psychology and Neuroscience, Pavlović, Tomislav [0000-0002-4470-3715], Azevedo, Flavio [0000-0001-9000-8513], De, Koustav [0000-0001-9562-0672], Riaño-Moreno, Julián C [0000-0003-4182-0550], Maglić, Marina [0000-0002-6851-4601], Gkinopoulos, Theofilos [0000-0003-1070-6245], Donnelly-Kehoe, Patricio Andreas [0000-0002-3738-9537], Payán-Gómez, César [0000-0002-0633-1332], Huang, Guanxiong [0000-0002-8588-1454], Kantorowicz, Jaroslaw [0000-0002-1186-5427], Birtel, Michèle D [0000-0002-2383-9197], Schönegger, Philipp [0000-0001-9930-487X], Capraro, Valerio [0000-0002-0579-0166], Santamaría-García, Hernando [0000-0001-9422-3579], Yucel, Meltem [0000-0002-7274-5971], Ibanez, Agustin [0000-0001-6758-5101], Rathje, Steve [0000-0001-6727-571X], Wetter, Erik [0000-0002-5821-6651], Stanojević, Dragan [0000-0002-3667-2461], van Prooijen, Jan-Willem [0000-0001-6236-0819], Hesse, Eugenia [0000-0002-9077-9833], Elbaek, Christian T [0000-0002-7039-4565], Franc, Renata [0000-0002-1909-2393], Pavlović, Zoran [0000-0002-9231-5100], Mitkidis, Panagiotis [0000-0002-9495-7369], Cichocka, Aleksandra [0000-0003-1703-1586], Alfano, Mark [0000-0001-5879-8033], Ross, Robert M [0000-0001-8711-1675], Sjåstad, Hallgeir [0000-0002-8730-1038], Nezlek, John B [0000-0003-4963-3637], Cislak, Aleksandra [0000-0002-9880-6947], Lockwood, Patricia [0000-0001-7195-9559], Abts, Koen [0000-0001-8546-8347], Agadullina, Elena [0000-0002-1505-1412], Amodio, David M [0000-0001-7746-0150], Apps, Matthew AJ [0000-0001-5793-2202], Aruta, John Jamir Benzon [0000-0003-4155-1063], Besharati, Sahba [0000-0003-2836-7982], Bor, Alexander [0000-0002-2624-9221], Choma, Becky [0000-0002-8286-8983], Ejaz, Waqas [0000-0002-2492-4115], Farmer, Harry [0000-0002-3684-0605], Findor, Andrej [0000-0002-5896-6989], Gjoneska, Biljana [0000-0003-1200-6672], Gualda, Estrella [0000-0003-0220-2135], Huynh, Toan LD [0000-0002-6653-7447], Imran, Mostak Ahamed [0000-0002-5101-3149], Israelashvili, Jacob [0000-0003-1289-223X], Kantorowicz-Reznichenko, Elena [0000-0001-8128-7290], Krouwel, André [0000-0003-0952-6028], Kutiyski, Yordan [0000-0003-0889-4232], Laakasuo, Michael [0000-0003-2826-6073], Lamm, Claus [0000-0002-5422-0653], Levy, Jonathan [0000-0003-1007-2393], Leygue, Caroline [0000-0002-0355-1030], Lin, Ming-Jen [0000-0002-7174-2226], Mansoor, Mohammad Sabbir [0000-0002-6541-3506], Marie, Antoine [0000-0002-7958-0153], Mayiwar, Lewend [0000-0003-1404-4779], Mazepus, Honorata [0000-0002-5005-9399], McHugh, Cillian [0000-0002-9701-3232], Olsson, Andreas [0000-0001-5272-7744], Otterbring, Tobias [0000-0002-0283-8777], Packer, Dominic [0000-0001-8420-6548], Palomäki, Jussi [0000-0001-6063-0926], Perry, Anat [0000-0003-2329-856X], Petersen, Michael Bang [0000-0002-6782-5635], Puthillam, Arathy [0000-0003-2426-8362], Rothmund, Tobias [0000-0003-2979-5129], Schmid, Petra C [0000-0002-9990-5445], Stadelmann, David [0000-0002-1211-9936], Stoica, Augustin [0000-0003-0585-1114], Stoyanov, Drozdstoy [0000-0002-9975-3680], Stoyanova, Kristina [0000-0001-8362-6444], Tewari, Shruti [0000-0003-1903-7252], Todosijević, Bojan [0000-0002-6116-993X], Torgler, Benno [0000-0002-9809-963X], Tsakiris, Manos [0000-0001-7753-7576], Tung, Hans H [0000-0001-5332-7582], Umbreș, Radu Gabriel [0000-0002-6121-4518], Vanags, Edmunds [0000-0003-1932-936X], Vlasceanu, Madalina [0000-0003-2138-1968], Vonasch, Andrew J [0000-0002-2784-5420], Zhang, Yucheng [0000-0001-9435-6734], Abad, Mohcine [0000-0002-4964-5411], Adler, Eli [0000-0002-9005-5536], Mdarhri, Hamza Alaoui [0000-0001-9831-6561], Antazo, Benedict [0000-0001-9993-8960], Ay, F Ceren [0000-0003-4444-2268], Ba, Mouhamadou El Hady [0000-0002-2707-1242], Barbosa, Sergio [0000-0003-1989-158X], Bastian, Brock [0000-0003-4619-3322], Berg, Anton [0000-0001-7143-762X], Białek, Michał [0000-0002-5062-5733], Bilancini, Ennio [0000-0002-2027-3992], Bogatyreva, Natalia [0000-0002-6024-2322], Boncinelli, Leonardo [0000-0003-0626-5133], Booth, Jonathan E [0000-0002-8563-4613], Borau, Sylvie [0000-0003-1564-0695], Buchel, Ondrej [0000-0002-0139-5513], de Carvalho, Chrissie Ferreira [0000-0002-1369-6188], Celadin, Tatiana [0000-0002-7743-3117], Cerami, Chiara [0000-0003-1974-3421], Chalise, Hom Nath [0000-0002-9301-6890], Cian, Luca [0000-0002-8051-1366], Cockcroft, Kate [0000-0002-6166-8050], Conway, Jane [0000-0003-3883-349X], Córdoba-Delgado, Mateo A [0000-0002-2264-7388], Crespi, Chiara [0000-0002-7851-9887], Crouzevialle, Marie [0000-0002-5538-6030], Cutler, Jo [0000-0003-1073-764X], Cypryańska, Marzena [0000-0001-9234-562X], Dabrowska, Justyna [0000-0002-8821-7161], Davis, Victoria H [0000-0002-7207-4629], Minda, John Paul [0000-0002-4081-010X], Dayley, Pamala N [0000-0001-8955-9502], Delouvée, Sylvain [0000-0002-4029-597X], Denkovski, Ognjan [0000-0002-9739-4100], Dezecache, Guillaume [0000-0002-9366-6287], Dhaliwal, Nathan A [0000-0002-4667-0689], Di Paolo, Roberto [0000-0002-6081-6656], Dulleck, Uwe [0000-0002-0953-5963], Ekmanis, Jānis [0000-0003-1781-1785], Etienne, Tom W [0000-0002-4299-6593], Farkhari, Fahima [0000-0002-8484-5128], Fidanovski, Kristijan [0000-0002-9006-0140], Flew, Terry [0000-0003-4485-9338], Fraser, Shona [0000-0003-1505-0652], Frempong, Raymond Boadi [0000-0002-4603-5570], Fugelsang, Jonathan [0000-0002-6342-7023], Gale, Jessica [0000-0001-5677-8629], García-Navarro, E Begoña [0000-0001-6913-8882], Gray, Kurt [0000-0001-5816-2676], Griffin, Siobhán M [0000-0002-3613-2844], Gronfeldt, Bjarki [0000-0001-9941-7903], Gruber, June [0000-0002-7789-1353], Halperin, Eran [0000-0002-3379-2935], Herzon, Volo [0000-0001-7781-1651], Hruška, Matej [0000-0002-4521-3697], Hudecek, Matthias FC [0000-0002-7696-766X], Isler, Ozan [0000-0002-4638-2230], Jangard, Simon [0000-0002-7876-4161], Jørgensen, Frederik [0000-0002-5461-912X], Keudel, Oleksandra [0000-0001-6322-3103], Koppel, Lina [0000-0002-6302-0047], Koverola, Mika [0000-0001-8227-6120], Kunnari, Anton [0000-0002-2951-6399], Leota, Josh [0000-0002-7714-4630], Lermer, Eva [0000-0002-6600-9580], Li, Chunyun [0000-0001-5909-0889], Longoni, Chiara [0000-0002-4945-4957], McCashin, Darragh [0000-0003-2686-2111], Mikloušić, Igor [0000-0002-6539-2901], Monroy-Fonseca, César [0000-0003-4696-8159], Morales-Marente, Elena [0000-0002-1227-9606], Moreau, David [0000-0002-1957-1941], Muda, Rafał [0000-0003-4953-6642], Myer, Annalisa [0000-0002-2363-4757], Nash, Kyle [0000-0003-0461-3835], Nitschke, Jonas P [0000-0002-3244-8585], Nurse, Matthew S [0000-0003-1787-5914], de Mello, Victoria Oldemburgo [0000-0003-2867-8529], Palacios-Galvez, Maria Soledad [0000-0002-6802-6202], Pan, Yafeng [0000-0002-5633-8313], Papp, Zsófia [0000-0001-6257-0568], Pärnamets, Philip [0000-0001-8360-9097], Paruzel-Czachura, Mariola [0000-0002-8716-9778], Perander, Silva [0000-0001-6711-8079], Pitman, Michael [0000-0001-5532-5388], Raza, Ali [0000-0002-2438-6054], Rêgo, Gabriel Gaudencio [0000-0003-3304-4723], Robertson, Claire [0000-0001-8403-6358], Rodríguez-Pascual, Iván [0000-0002-5385-3643], Saikkonen, Teemu [0000-0001-9619-3270], Salvador-Ginez, Octavio [0000-0002-1652-8788], Sampaio, Waldir M [0000-0002-6066-4314], Santi, Gaia Chiara [0000-0002-9253-6122], Schultner, David [0000-0003-2253-4065], Schutte, Enid [0000-0002-6653-5409], Scott, Andy [0000-0002-3294-0078], Skali, Ahmed [0000-0002-4753-3280], Stefaniak, Anna [0000-0002-1706-7784], Sternisko, Anni [0000-0002-2507-3076], Strickland, Brent [0000-0002-7573-3722], Thomas, Jeffrey P [0000-0002-5939-5559], Tinghög, Gustav [0000-0002-8159-1249], Tucciarelli, Raffaele [0000-0002-0342-308X], Tyrala, Michael [0000-0001-5268-8319], Ungson, Nick D [0000-0003-2494-4498], Uysal, Mete Sefa [0000-0002-8698-9213], Van Rooy, Dirk [0000-0003-2525-5408], Västfjäll, Daniel [0000-0003-2873-4500], Vieira, Joana B [0000-0001-7335-4588], von Sikorski, Christian [0000-0002-3787-8277], Walker, Alexander C [0000-0003-1431-6770], Watermeyer, Jennifer [0000-0001-7918-8832], Willardt, Robin [0000-0002-2495-3450], Wohl, Michael JA [0000-0001-6945-5562], Wójcik, Adrian Dominik [0000-0002-7073-6019], Wu, Kaidi [0000-0001-6881-7437], Yamada, Yuki [0000-0003-1431-568X], Yilmaz, Onurcan [0000-0002-6094-7162], Yogeeswaran, Kumar [0000-0002-1978-5077], Ziemer, Carolin-Theresa [0000-0002-0794-7702], Zwaan, Rolf A [0000-0001-9967-7879], Boggio, Paulo Sergio [0000-0002-6109-0447], Van Lange, Paul AM [0000-0001-7774-6984], Prasad, Rajib [0000-0003-0913-1624], Onderco, Michal [0000-0001-9911-3782], O'Madagain, Cathal [0000-0002-4086-524X], Nesh-Nash, Tarik [0000-0002-5532-9095], Kubin, Emily [0000-0003-0606-8594], Gümren, Mert [0000-0002-3298-6295], Fenwick, Ali [0000-0002-5412-9745], Ertan, Arhan S [0000-0001-9730-8391], Bernstein, Michael J [0000-0002-8083-9839], Amara, Hanane [0000-0003-0732-2320], Van Bavel, Jay Joseph [0000-0002-2520-0442], Apollo - University of Cambridge Repository, Sociale Psychologie (Psychologie, FMG), ASCoR Other Research (FMG), Department of Neuroscience and Biomedical Engineering, Aalto-yliopisto, Department of Digital Humanities, Department of Psychology and Logopedics, Cognitive Science, High Performance Cognition group, Mind and Matter, and Department of Computer Science
Subjects: Hälso- och sjukvårdsorganisation, hälsopolitik och hälsoekonomi, Economics, COVID-19, social distancing, hygiene, policy support, public health measures, J Political Science, [SHS.PSY]Humanities and Social Sciences/Psychology, psychology, Settore SECS-P/02 - Politica Economica, Q1, H Social Sciences, [STAT.ML]Statistics [stat]/Machine Learning [stat.ML], SDG 3 - Good Health and Well-being, RA0421, RA0421 Public health. Hygiene. Preventive Medicine, Machine learning, Psychology, Nationalekonomi, Settore SECS-P/01 - Economia Politica, MCC, Computer. Automation, Psykologi (exklusive tillämpad psykologi), DAS, Health Care Service and Management, Health Policy and Services and Health Economy, [SHS.SCIPO]Humanities and Social Sciences/Political science, Psychology (excluding Applied Psychology), machine learning, Settore SECS-P/03 - Scienza delle Finanze, 5171 Political Science, Human medicine, COVID-19, social distancing, hygiene, policy support, public health measures
Abstract: At the beginning of 2020, COVID-19 became a global problem. Despite all the efforts to emphasize the relevance of preventive measures, not everyone adhered to them. Thus, learning more about the characteristics determining attitudinal and behavioral responses to the pandemic is crucial to improving future interventions. In this study, we applied machine learning on the multinational data collected by the International Collaboration on the Social and Moral Psychology of COVID-19 (N = 51,404) to test the predictive efficacy of constructs from social, moral, cognitive, and personality psychology, as well as socio-demographic factors, in the attitudinal and behavioral responses to the pandemic. The results point to several valuable insights. Internalized moral identity provided the most consistent predictive contribution—individuals perceiving moral traits as central to their self-concept reported higher adherence to preventive measures. Similar results were found for morality as cooperation, symbolized moral identity, self-control, open-mindedness, and collective narcissism, while the inverse relationship was evident for the endorsement of conspiracy theories. However, we also found a non-neglible variability in the explained variance and predictive contributions with respect to macro-level factors such as the pandemic stage or cultural region. Overall, the results underscore the importance of morality-related and contextual factors in understanding adherence to public health recommendations during the pandemic., PNAS Nexus, 1 (3), ISSN:2752-6542
Published: 2022
Full Text: View/download PDF

25. Soil macroinvertebrate communities: A world‐wide assessment

Author: Patrick Lavelle, Jérôme Mathieu, Alister Spain, George Brown, Carlos Fragoso, Emmanuel Lapied, Adriana De Aquino, Isabelle Barois, Edmundo Barrios, Maria Eleusa Barros, Jose Camilo Bedano, Eric Blanchart, Mark Caulfield, Yamileth Chagueza, Jun Dai, Thibaud Decaëns, Anahi Dominguez, Yamileth Dominguez, Alexander Feijoo, Patricia Folgarait, Steven J. Fonte, Norma Gorosito, Esperanza Huerta, Juan Jose Jimenez, Courtland Kelly, Gladys Loranger, Robelio Marchão, Raphael Marichal, Catarina Praxedes, Leonardo Rodriguez, Guillaume Rousseau, Laurent Rousseau, Nuria Ruiz, Catalina Sanabria, Juan Carlos Suarez, Jerôme Ebagnerin Tondoh, Anne De Valença, Steven J. Vanek, Joel Vasquez, Elena Velasquez, Emily Webster, Chi Zhang, Institut d'écologie et des sciences de l'environnement de Paris (iEES Paris ), Institut de Recherche pour le Développement (IRD)-Sorbonne Université (SU)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), perso, Adresse personnelle, Brazilian Agricultural Research Corporation (Embrapa), Instituto de Ecologia (INECOL), Taxonomia International Foundation, FAO Plant Production and Protection Division (FAO), Food and Agriculture Organization of the United Nations [Rome, Italie] (FAO), National University of Río Cuarto = Universidad Nacional de Río Cuarto (UNRC), Ecologie fonctionnelle et biogéochimie des sols et des agro-écosystèmes (UMR Eco&Sols), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut de Recherche pour le Développement (IRD)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Agro Montpellier, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro), Colorado State University [Fort Collins] (CSU), Wageningen University and Research [Wageningen] (WUR), Universidad Nacional de Colombia [Bogotà] (UNAL), South China Agricultural University (SCAU), Centre d’Ecologie Fonctionnelle et Evolutive (CEFE), Université Paul-Valéry - Montpellier 3 (UPVM)-École pratique des hautes études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Agro Montpellier, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Université de Montpellier (UM), Universidad del Atlántico (UA), Universidad Tecnológica de Pereira [Colombie] (UTP), Universidad Nacional de Quilmes (UNQ), EI Colegio de la Frontera Sur (ECOSUR), Consejo Nacional de Ciencia y Tecnología [Mexico] (CONACYT), Instituto Pirenaico de Ecologia = Pyrenean Institute of Ecology (IPE), Université des Antilles (Pôle Guadeloupe), Université des Antilles (UA), Agrosystèmes Biodiversifiés (UMR ABSys), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre International de Hautes Etudes Agronomiques Méditerranéennes - Institut Agronomique Méditerranéen de Montpellier (CIHEAM-IAMM), Centre International de Hautes Études Agronomiques Méditerranéennes (CIHEAM)-Centre International de Hautes Études Agronomiques Méditerranéennes (CIHEAM)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Agro Montpellier, Département Performances des systèmes de production et de transformation tropicaux (Cirad-PERSYST), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad), Museu Paraense Emílio Goeldi [Belém, Brésil] (MPEG), Universidad de la Amazonia [Caquetá], Universidade Estadual do Maranhão = State University of Maranhão (UEMA), Agence Nationale de la Recherche (ANR), Universidad del Valle [Cali] (Univalle), Université Nangui Abrogoua (UNA), Instituto de Investigaciones de la Amazonía Peruana (IIAP), Universidad Nacional de la Amazonía Peruana [Loreto, Perou] (UNAP), University of California [Davis] (UC Davis), University of California (UC), Empresa Brasileira de Pesquisa Agropecuária (Embrapa), Ministério da Agricultura, Pecuária e Abastecimento [Brasil] (MAPA), Governo do Brasil-Governo do Brasil, Geology Department, FCEFQyN, ICBIA-CONICET (National Scientific and Technical Research Council), National University of Río Cuarto, Farming Systems Ecology, College of Natural Resources and Environment, Université Paul-Valéry - Montpellier 3 (UPVM)-École Pratique des Hautes Études (EPHE), Soil Physics and Land Management Group, Instituto Pirenaico de Ecologìa = Pyrenean Institute of Ecology [Zaragoza] (IPE - CSIC), Department of biodiversity conservation and ecosystem restoration, Faculté des sciences exactes et naturelles (UFR SEN), Université des Antilles (UA)-Université des Antilles (UA), Centro de Pesquisa Agropecuária dos Cerrados, Embrapa Cerrados Planaltina, Coordenação de Zoologia, and We are grateful to Drs John Donaldson and Stella Zerbino for providing data from Australia and Uruguay, respectively, for the Macrofauna database.
Subjects: Global and Planetary Change, Ecology, Macrofauna database, P34 - Biologie du sol, Farm Systems Ecology Group, Bodemfysica en Landbeheer, soil ecology, Soil Physics and Land Management, communities, land cover, soil macroinvertebrates, L20 - Écologie animale, [SDE.BE]Environmental Sciences/Biodiversity and Ecology, network analysis, Ecology, Evolution, Behavior and Systematics
Abstract: International audience; Aim: Macroinvertebrates comprise a highly diverse set of taxa with great potential as indicators of soil quality. Communities were sampled at 3,694 sites distributed world-wide. We aimed to analyse the patterns of abundance, composition and network characteristics and their relationships to latitude, mean annual temperature and rainfall, land cover, soil texture and agricultural practices. Location: Sites are distributed in 41 countries, ranging from 55 degrees S to 57 degrees N latitude, from 0 to 4,000 m in elevation, with annual rainfall ranging from 500 to >3,000 mm and mean temperatures of 5-32 degrees C. Time period: 1980-2018. Major taxa studied: All soil macroinvertebrates: Haplotaxida; Coleoptera; Formicidae; Arachnida; Chilopoda; Diplopoda; Diptera; Isoptera; Isopoda; Homoptera; Hemiptera; Gastropoda; Blattaria; Orthoptera; Lepidoptera; Dermaptera; and "others". Methods: Standard ISO 23611-5 sampling protocol was applied at all sites. Data treatment used a set of multivariate analyses, principal components analysis (PCA) on macrofauna data transformed by Hellinger's method, multiple correspondence analysis for environmental data (latitude, elevation, temperature and average annual rainfall, type of vegetation cover) transformed into discrete classes, coinertia analysis to compare these two data sets, and bias-corrected and accelerated bootstrap tests to evaluate the part of the variance of the macrofauna data attributable to each of the environmental factors. Network analysis was performed. Each pairwise association of taxonomic units was tested against a null model considering local and regional scales, in order to avoid spurious correlations. Results: Communities were separated into five clusters reflecting their densities and taxonomic richness. They were significantly influenced by climatic conditions, soil texture and vegetation cover. Abundance and diversity, highest in tropical forests (1,895 +/- 234 individuals/m(2)) and savannahs (1,796 +/- 72 individuals/m(2)), progressively decreased in tropical cropping systems (tree-associated crops, 1,358 +/- 120 individuals/m(2); pastures, 1,178 +/- 154 individuals/m(2); and annual crops, 867 +/- 62 individuals/m(2)), temperate grasslands (529 +/- 60 individuals/m(2)), forests (232 +/- 20 individuals/m(2)) and annual crops (231 +/- 24 individuals/m(2)) and temperate dry forests and shrubs (195 +/- 11 individuals/m(2)). Agricultural management decreased overall abundance by
Published: 2022
Full Text: View/download PDF

26. Stability Analysis of DC Microgrids With Switched Events

Author: Eduardo Mojica-Nava, Vladimir Toro, N. Rakoto-Ravalontsalama, Universidad Nacional de Colombia [Bogotà] (UNAL), Laboratoire des Sciences du Numérique de Nantes (LS2N), IMT Atlantique Bretagne-Pays de la Loire (IMT Atlantique), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), and Université de Nantes (UN)-Université de Nantes (UN)-École Centrale de Nantes (ECN)-Centre National de la Recherche Scientifique (CNRS)
Subjects: [SPI.OTHER]Engineering Sciences [physics]/Other, 0209 industrial biotechnology, 020901 industrial engineering & automation, Control and Systems Engineering, Computer science, Control theory, 020208 electrical & electronic engineering, 0202 electrical engineering, electronic engineering, information engineering, 02 engineering and technology, Stability (probability), ComputingMilieux_MISCELLANEOUS
Abstract: International audience
Published: 2021
Full Text: View/download PDF

27. Le vieillissement

Author: Simon Willaume, Angela Moussa, Benoit Thézé, Gaëlle Pennarun, Pascale Bertrand, Paula Fontanilla, Universidad Nacional de Colombia [Bogotà] (UNAL), Imagerie Moléculaire in Vivo (IMIV - U1023 - ERL9218), Service Hospitalier Frédéric Joliot (SHFJ), Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM), Institut de Radiobiologie Cellulaire et Moléculaire (IRCM), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Laboratoire d'étude des Mécanismes de la recombinaison (LMR), and Centre National de la Recherche Scientifique (CNRS)
Subjects: 0303 health sciences, DNA damage, DNA repair, [SDV]Life Sciences [q-bio], Cellular senescence, Inflammation, General Medicine, Biology, medicine.disease, Phenotype, General Biochemistry, Genetics and Molecular Biology, Progeroid syndromes, Cell biology, 03 medical and health sciences, 0302 clinical medicine, 030220 oncology & carcinogenesis, medicine, Nuclear lamina, medicine.symptom, Cell aging, 030304 developmental biology
Abstract: International audience; Le vieillissement est associé à une accumulation de cellules sénescentes produisant un environnement cellulaire inflammatoire qui pourrait expliquer différentes maladies liées à l’âge. Diverses situations menant à la sénescence sont liées à la présence de dommages de l’ADN. De plus, de nombreux syndromes progéroïdes sont associés à une instabilité du génome ou de la structure nucléaire. Nous discuterons du lien étroit existant entre l’altération des lamines, composants de l’enveloppe nucléaire, et le vieillissement cellulaire. Nous verrons que l’altération de l’enveloppe nucléaire, comme celle observée dans la Progéria, est aussi associée à des défauts de réparation de l’ADN, à une persistance de dommages de l’ADN et à un phénotype inflammatoire.
Published: 2020
Full Text: View/download PDF

28. Multiplex Centrality Measurements Applied to Islanded Microgrids

Author: N. Rakoto-Ravalontsalama, Vladimir Toro, Eduardo Mojica-Nava, Universidad Nacional de Colombia [Bogotà] (UNAL), Laboratoire des Sciences du Numérique de Nantes (LS2N), IMT Atlantique Bretagne-Pays de la Loire (IMT Atlantique), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), and Université de Nantes (UN)-Université de Nantes (UN)-École Centrale de Nantes (ECN)-Centre National de la Recherche Scientifique (CNRS)
Subjects: [SPI.OTHER]Engineering Sciences [physics]/Other, 0209 industrial biotechnology, 02 engineering and technology, Topology, Computer Science Applications, Admittance parameters, law.invention, Matrix (mathematics), 020901 industrial engineering & automation, PageRank, Control and Systems Engineering, law, Adjacency list, Adjacency matrix, Centrality, Laplace operator, ComputingMilieux_MISCELLANEOUS, Eigenvalues and eigenvectors, Mathematics
Abstract: This paper presents four centrality measurements applied to an alternating current (AC) microgrid (MG) modeled as a multiplex network. The MG secondary control is separated into a frequency and a power-sharing layers, each one with a different adjacency matrix. A physical layer is also considered with an admittance matrix representing the impedances among the inverters. Centrality measures are used to determine the importance of nodes in separate layers, thereafter adjacency and Laplacian matrices are redefined to calculate the role of nodes in the multiplex system. First, a global adjacency matrix is calculated by the matrix sum of each adjacency matrix. Second, the adjacency matrix is calculated by a supra-Laplacian matrix. The first eigenvalue of the perturbed matrix is used to determine the diffusivity in the network using as leaders the sets obtained by the centrality measures. The role of the nodes in the system is verified in a simulated MG model of 37 nodes. Degree centrality and energy Laplacian measures present similar sets of nodes; however, the fastest set of nodes is found using the Eigenvector measurements for uniform and supra Laplacian approach.
Published: 2020
Full Text: View/download PDF

29. Estructura urbana y condiciones de movilidad en las periferias populares de Lima y Bogotá: desafíos y método de análisis

Author: Jeremy Robert, Vincent Gouëset, Florent Demoraes, Pablo Vega Centeno, Omar Pereyra, Ana Luisa Flechas, Maëlle Lucas, Carlos Moreno Luna, Milton Mauricio Moreno, Carlos Felipe Pardo, Jorge Andrés Pinzón Rueda, Germán Prieto, Hernando Saenz Acosta, José Ricardo Villar-Uribe, Espaces et Sociétés (ESO), Le Mans Université (UM)-Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-Université d'Angers (UA)-AGROCAMPUS OUEST-Université de Rennes 2 (UR2), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Géographie et d'Aménagement Régional de l'Université de Nantes (IGARUN), Université de Nantes (UN)-Université de Nantes (UN), Institut Français d'Etudes Andines (IFEA), Ministère de l'Europe et des Affaires étrangères (MEAE)-Centre National de la Recherche Scientifique (CNRS), Pontificia Universidad Católica del Perú (PUCP), Universidad Nacional de Colombia [Bogotà] (UNAL), Universidad Piloto de Colombia, Bogotá., NUMO, Universidad Santo Tomas [Bogota], Universidad de Bogota Jorge Tadeo Lozano (UTADEO), ANR-19-CE22-0016,MODURAL,La pratique des mobilités durables dans les métropoles d'Amérique latine: étude comparée de Bogotá (Colombie) et Lima (Pérou)(2019), Institut de Géographie et d'Aménagement Régional de l'Université de Nantes (IGARUN), Université de Nantes (UN)-Université de Nantes (UN)-Centre National de la Recherche Scientifique (CNRS)-Université de Rennes 2 (UR2), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-AGROCAMPUS OUEST, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Université d'Angers (UA)-Université de Caen Normandie (UNICAEN), and Normandie Université (NU)-Normandie Université (NU)-Le Mans Université (UM)
Subjects: mobilité quotidienne, metodología, daily mobility, metodologia, Geography, Planning and Development, periferias populares, Bogotá, methodology, mobilidade cotidiana, Lima, méthodologie, [SHS]Humanities and Social Sciences, Urban Studies, deprived outskirts, movilidad cotidiana, périphérie populaire
Abstract: International audience; This article presents part of the work carried out as part of the Modural programme "Sustainable mobility practices in Latin American metropolises: a comparative study of Bogotá and Lima", launched in January 2020. Modural is an international and multidisciplinary programme funded by the ANR (French National Research Agency). It focuses on the study of sustainable mobility practices of households living more specifically in deprived outskirts. This article has two objectives. First, to highlight the socio-spatial patterns of mobility inequalities in Lima and Bogotá and the transport problems that affect the outer districts. Second, to detail the methodology for selecting the most socially disadvantaged areas with the most difficult daily travel conditions. It is in these areas that 1600 household surveys will be implemented in the first half of 2022.; Este artículo presenta parte del trabajo realizado en el marco del programa Modural "Prácticas de movilidad sostenible en las metrópolis latinoamericanas: un estudio comparativo de Bogotá y Lima", iniciado en enero de 2020. Modural es un programa internacional y multidisciplinar financiado por la ANR (Agencia Nacional de Investigación francesa). Se centra en el estudio de las prácticas de movilidad sostenible de los hogares que residen más específicamente en las periferias populares. Este artículo tiene dos objetivos. En primer lugar, evidenciar las configuraciones socioespaciales de las desigualdades de movilidad en Lima y Bogotá y los problemas de transporte que afectan a las zonas periféricas. En segundo lugar, detallar la metodología de selección de las zonas socialmente más desfavorecidas y con condiciones de desplazamiento más difíciles a diario. En estas zonas se llevarán a cabo 1.600 encuestas a hogares en el primer semestre de 2022.; Cet article restitue une partie des travaux menés dans le cadre du programme Modural "Les pratiques de mobilité durable dans les métropoles latino-américaines : une étude comparative de Bogotá et Lima", lancé en janvier 2020. Modural est un programme international et multidisciplinaire financé par l'ANR (Agence Nationale de la Recherche). Il porte sur l'étude des pratiques de mobilité durable des ménages résidant plus spécifiquement dans les périphéries populaires. Cet article poursuit deux objectifs. Premièrement, mettre en évidence les configurations socio-spatiales des inégalités de mobilité à Lima et à Bogotá et les problèmes de transport qui concernent les quartiers excentrés. Deuxièmement, détailler la méthodologie de sélection des zones les plus défavorisées socialement et présentant les conditions de déplacements parmi les plus difficiles au quotidien. C'est dans ces zones que seront mises en œuvre 1600 enquêtes ménages au cours du premier semestre 2022.; Este artigo apresenta parte do trabalho realizado como parte do programa Modural "Práticas de mobilidade sustentável nas metrópoles da América Latina: um estudo comparativo de Bogotá e Lima", lançado em janeiro de 2020. O Modural é um programa internacional e multidisciplinar financiado pela ANR (Agência Nacional de Pesquisa da França). Concentra-se no estudo das práticas de mobilidade sustentável dos domicílios que residem mais especificamente nas periferias populares. Este artigo tem dois objetivos. Primeiramente, destacar as configurações sócio-espaciais das desigualdades de mobilidade em Lima e Bogotá e os problemas de transporte que afetam as áreas periféricas. Em segundo lugar, detalhar a metodologia para selecionar as áreas socialmente mais desfavorecidas com as mais difíceis condições de locomoção. Nessas áreas, serão realizadas 1.600 pesquisas domiciliares na primeira metade de 2022.
Published: 2022
Full Text: View/download PDF

30. Conocimiento local de las variedades de yuca en Montes de María, Colombia: primer paso para la construcción de un programa de fitomejoramiento participativo

Author: Pérez, Darío, Mora, Rubén Eduardo, Angulo, Emiro Rafael, López, Camilo Ernesto, Plant Health Institute of Montpellier (UMR PHIM), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut de Recherche pour le Développement (IRD)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Agro Montpellier, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Université de Montpellier (UM), Patrimoines locaux, Environnement et Globalisation (PALOC), Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Sorbonne Université (SU), Universidad Nacional de Colombia [Bogotà] (UNAL), and Asociación de Víctimas del Desplazamiento Forzado del Corregimiento de San Cayetano (ASOVIDESAN)
Subjects: ethnobotany, traditional crops, variedades locales, agrobiodiversity, agrobiodiversidad, [SDV]Life Sciences [q-bio], participatory science, ciencia participativa, cultivos tradicionales, local varieties, etnobotánica, [SHS]Humanities and Social Sciences
Abstract: International audience; Cassava (Manihot esculentaCrantz) is one of the leading food crops in the Colombian Caribbean. Participatory plant breeding is a strategy to obtain varieties that meet the needs of those who produce cassava, while valuing local knowledge and promoting the relationship between plant breeding processes and people, considering the low level of adoption of improved varieties of this plant reported in the region. Through a co-investigation process that included the participation of former FARC-EP combatants in the process of reincorporating into civilian life, we documented the knowledge about the varieties of cassava preserved by 20 peasants who live in the Montes de María. As a result, we describe the crop management and the uses and attributes associated with 25 reported common names of this plant. We highlight the need to recover the use of a greater number of cassava varieties; although there is knowledge about some of them, not many varieties are grown anymore. These results represent the primary input aimed at developing new varieties that respond to the preferences of the peasantry, which is a process that must be led and conducted by the communities themselves.; Considerando la importancia de la yuca (Manihot esculenta Crantz) como uno de los principales cultivos alimenticios del Caribe colombiano y el bajo nivel de adopción de las variedades mejoradas que se ha reportado en la región, el fitomejoramiento participativo (FP) se presenta como una estrategia para la obtención de variedades que satisfagan las necesidades de quienes producen yuca y al tiempo valoran los saberes locales, promoviendo la relación entre los procesos de fitomejoramiento y la gente. A través de un proceso de coinvestigación que contó con la participación de excombatientes de las FARC-EP en proceso de reincorporación a la vida civil, se documentaron los conocimientos sobre las variedades de yuca conservadas por 20 campesinos que habitan en los Montes de María. Como resultado, se describe cómo se realiza el manejo del cultivo, los usos y atributos asociados con 25 nombres comunes reportados. Se destaca la necesidad de recuperar el uso de un mayor número de variedades de yuca, ya que, si bien existe conocimiento sobre algunas de ellas, muchas ya no se cultivan. Estos resultados representan el insumo primario dirigido al desarrollo de nuevas variedades que respondan a las preferencias propias del campesinado; proceso que debe ser liderado y conducido por las comunidades mismas.
Published: 2022
Full Text: View/download PDF

31. Biocultural Drivers Responsible for the Occurrence of a Cassava Bacterial Pathogen in Small-Scale Farms of Colombian Caribbean

Author: Pérez, Darío, Duputié, Anne, Vernière, Christian, Szurek, Boris, Caillon, Sophie, Plant Health Institute of Montpellier (UMR PHIM), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut de Recherche pour le Développement (IRD)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Agro Montpellier, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Université de Montpellier (UM), Patrimoines locaux, Environnement et Globalisation (PALOC), Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Sorbonne Université (SU), Universidad Nacional de Colombia [Bogotà] (UNAL), Évolution, Écologie et Paléontologie (Evo-Eco-Paleo) - UMR 8198 (Evo-Eco-Paléo (EEP)), Université de Lille-Centre National de la Recherche Scientifique (CNRS), Département Systèmes Biologiques (Cirad-BIOS), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad), Centre d’Ecologie Fonctionnelle et Evolutive (CEFE), Université Paul-Valéry - Montpellier 3 (UPVM)-École Pratique des Hautes Études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Agro Montpellier, and Agropolis Foundation (Grant No. 1 403-073)
Subjects: seed system, fertilizer use, circulation of propagative propagules, Ecology, cassava bacterial blight (CBB), land property, [SDV.SA.AGRO]Life Sciences [q-bio]/Agricultural sciences/Agronomy, food and beverages, agricultural practices, Xanthomonas phaseoli pv. manihotis, Ecology, Evolution, Behavior and Systematics, [SDV.BV.PEP]Life Sciences [q-bio]/Vegetal Biology/Phytopathology and phytopharmacy
Abstract: International audience; Cassava ( Manihot esculenta Crantz) is a primary crop for food security of millions of people worldwide. In Colombia, the Caribbean region contributes about half of the national cassava production, despite major socioeconomic constraints such as unequal land property, omnipresence of middlemen, low and unstable prices, armed conflict, climate change and phytosanitary issues. Among the latter is Cassava Bacterial Blight (CBB), a disease caused by the bacterial pathogen Xanthomonas phaseoli pv. manihotis ( Xpm ) that leads to irreversible damage to plants, impeding growth and productivity. In 2016, we analyzed the role of sociocultural and agricultural practices on CBB prevalence in small-scale fields of a village of the Colombian Caribbean region, where farmers live almost exclusively from the sale of their cassava production. Semi-structured interviews (48) were conducted with all farmers who cultivated cassava to document individual sociodemographic characteristics, cassava farming practices, and perceptions about CBB occurrence. Cassava Bacterial Blight was diagnosed in the field and the presence of Xpm was further confirmed upon laboratory analysis of collected diseased leaf samples. Our data show that (i) according to the risks perceived by farmers, CBB is the main disease affecting cassava crops in the village and it could indeed be detected in about half of the fields visited; (ii) CBB occurrence depends strongly on land property issues, likely because of an inadequate phytosanitary control during acquisition of cuttings when farmers are forced to rent the land; and (iii) there is a strong positive correlation between the use of commercial fertilizers and the occurrence of CBB in the village of Villa López.
Published: 2022
Full Text: View/download PDF

32. FunAndes : a functional trait database of Andean plants

Author: Selene Báez, Luis Cayuela, Manuel J. Macía, Esteban Álvarez-Dávila, Amira Apaza-Quevedo, Itziar Arnelas, Natalia Baca-Cortes, Guillermo Bañares de Dios, Marijn Bauters, Celina Ben Saadi, Cecilia Blundo, Marian Cabrera, Felipe Castaño, Leslie Cayola, Julia G. de Aledo, Carlos Iván Espinosa, Belén Fadrique, William Farfán-Rios, Alfredo Fuentes, Claudia Garnica-Díaz, Mailyn González, Diego González, Isabell Hensen, Ana Belén Hurtado, Oswaldo Jadán, Denis Lippok, M. Isabel Loza, Carla Maldonado, Lucio Malizia, Laura Matas-Granados, Jonathan A. Myers, Natalia Norden, Imma Oliveras Menor, Kerstin Pierick, Hirma Ramírez-Angulo, Beatriz Salgado-Negret, Matthias Schleuning, Miles Silman, María Elena Solarte-Cruz, J. Sebastián Tello, Hans Verbeeck, Emilio Vilanova, Greta Weithmann, Jürgen Homeier, Escuela Politécnica Nacional del Ecuador, Universidad Rey Juan Carlos [Madrid] (URJC), Universidad Autónoma de Madrid (UAM), Universidad Nacional Abierta a Distancia de Colombia, Universidad Mayor Real y Pontificia San Francisco Xavier de Chuquisaca, Universidad Técnica Particular de Loja (UTPL), Universidad de Nariño, Computational & Applied Vegetation Ecology (CAVElab), Universiteit Gent = Ghent University (UGENT), Universidad Nacional de Tucumán (UNT), Universidad Industrial de Santander [Bucaramanga] (UIS), Universidad Mayor de San Andrés (UMSA), University of Leeds, Missouri Botanical Garden, University of Florida [Gainesville] (UF), Instituto Vasco de Investigación de Recursos Biológicos Alexander von Humboldt, Conservación Internacional, Martin-Luther-University Halle-Wittenberg, Universidad de Cuenca (UCUENCA), The Morton Arboretum, Universidad Nacional de Jujuy, Department of Biology, Washington University, University of Washington [Seattle], Botanique et Modélisation de l'Architecture des Plantes et des Végétations (UMR AMAP), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université de Montpellier (UM), University of Oxford, Plant Ecology and Ecosystems Research, Georg-August-University = Georg-August-Universität Göttingen, Universidad de Los Andes [Mérida, Venezuela] (ULA), Universidad Nacional de Colombia [Bogotà] (UNAL), Senckenberg Biodiversity and Climate Research Centre (SBiK-F), Goethe-Universität Frankfurt am Main-Senckenberg – Leibniz Institution for Biodiversity and Earth System Research - Senckenberg Gesellschaft für Naturforschung, Leibniz Association-Leibniz Association, Wake Forest University, Wildlife Conservation Society (WCS), and Living Earth Collaborative (LEC) at Washington University in St. LouisHerbario Nacional de BoliviaDeutscher Akademischer Austausch Dienst (DAAD)German Research Foundation (DFG)HE3041/20-1HO3296/2HO3296/4
Subjects: Statistics and Probability, Biodiversity, Library and Information Sciences, Plants, [SDV.BV.BOT]Life Sciences [q-bio]/Vegetal Biology/Botanics, Tropical ecology, [SDV.BID.SPT]Life Sciences [q-bio]/Biodiversity/Systematics, Phylogenetics and taxonomy, FRAMEWORK, Wood, Computer Science Applications, Education, Plant Leaves, COMMUNITY, Phenotype, [SDV.EE.ECO]Life Sciences [q-bio]/Ecology, environment/Ecosystems, HANDBOOK, Earth and Environmental Sciences, cavelab, Statistics, Probability and Uncertainty, Forest ecology, [SDE.BE]Environmental Sciences/Biodiversity and Ecology, Information Systems
Abstract: We introduce the FunAndes database, a compilation of functional trait data for the Andean flora spanning six countries. FunAndes contains data on 24 traits across 2,694 taxa, for a total of 105,466 entries. The database features plant-morphological attributes including growth form, and leaf, stem, and wood traits measured at the species or individual level, together with geographic metadata (i.e., coordinates and elevation). FunAndes follows the field names, trait descriptions and units of measurement of the TRY database. It is currently available in open access in the FIGSHARE data repository, and will be part of TRY’s next release. Open access trait data from Andean plants will contribute to ecological research in the region, the most species rich terrestrial biodiversity hotspot.
Published: 2022
Full Text: View/download PDF

33. Characterization of motion patterns by a spatio-temporal saliency descriptor in cardiac cine MRI

Author: Angélica Atehortúa, Eduardo Romero, Mireille Garreau, Jonchère, Laurent, Gestes Médico-Chirurgicaux Assistés par Ordinateur - - CAMI2011 - ANR-11-LABX-0004 - LABX - VALID, Laboratoire Traitement du Signal et de l'Image (LTSI), Université de Rennes (UR)-Institut National de la Santé et de la Recherche Médicale (INSERM), Universidad Nacional de Colombia [Bogotà] (UNAL), This work was supported by Colciencias-Colombia, Grant No. 647 (2015 call for National PhD studies), and Région Bretagne in the framework of the Investissement d’Avenir Program through Labex CAMI (ANR-11-LABX-0004)., and ANR-11-LABX-0004,CAMI,Gestes Médico-Chirurgicaux Assistés par Ordinateur(2011)
Subjects: [SDV.IB] Life Sciences [q-bio]/Bioengineering, Heart Ventricles, Myocardial Infarction, Magnetic Resonance Imaging, Cine, Health Informatics, Heart, Heart motion, Cardiomyopathy, Hypertrophic, Cardiac motion patterns, Spatio-temporal saliency, Magnetic Resonance Imaging, Computer Science Applications, Humans, [SDV.IB]Life Sciences [q-bio]/Bioengineering, Cardiac cine magnetic resonance imaging, Software
Abstract: International audience; BACKGROUND AND OBJECTIVE: Abnormalities of the heart motion reveal the presence of a disease. However, a quantitative interpretation of the motion is still a challenge due to the complex dynamics of the heart. This work proposes a quantitative characterization of regional cardiac motion patterns in cine magnetic resonance imaging (MRI) by a novel spatio-temporal saliency descriptor. METHOD: The strategy starts by dividing the cardiac sequence into a progression of scales which are in due turn mapped to a feature space of regional orientation changes, mimicking the multi-resolution decomposition of oriented primitive changes of visual systems. These changes are estimated as the difference between a particular time and the rest of the sequence. This decomposition is then temporarily and regionally integrated for a particular orientation and then for the set of different orientations. A final spatio-temporal 4D saliency map is obtained as the summation of the previously integrated information for the available scales. The saliency dispersion of this map was computed in standard cardiac locations as a measure of the regional motion pattern and was applied to discriminate control and hypertrophic cardiomyopathy (HCM) subjects during the diastolic phase. RESULTS: Salient motion patterns were estimated from an experimental set, which consisted of 3D sequences acquired by MRI from 108 subjects (33 control, 35 HCM, 20 dilated cardiomyopathy (DCM), and 20 myocardial infarction (MINF) from heterogeneous datasets). HCM and control subjects were classified by an SVM that learned the salient motion patterns estimated from the presented strategy, by achieving a 94% AUC. In addition, statistical differences (test t-student, p
Published: 2022
Full Text: View/download PDF

34. Innovation Spaces as Drivers of Eco-innovations Supporting the Circular Economy: A Systematic Literature Review

Author: Fedoua Kasmi, Brunelle Marche, Laurent Dupont, Ferney Osorio, Mauricio Camargo, Equipe de Recherche sur les Processus Innovatifs (ERPI), Université de Lorraine (UL), INEDIT - open INnovation Ecosystems for Do It Together processNuméro CORDIS : 869952COLCIENCIAS Grant Program 785-2017, Lorraine Fab Living Lab® (LF2L), European Project: 869952,INEDIT, and Universidad Nacional de Colombia [Bogotà] (UNAL)
Subjects: [SPI.OTHER]Engineering Sciences [physics]/Other, Economics and Econometrics, Strategy and Management, [SHS]Humanities and Social Sciences, 12. Responsible consumption, [SPI]Engineering Sciences [physics], JEL: Q - Agricultural and Natural Resource Economics • Environmental and Ecological Economics/Q.Q5 - Environmental Economics/Q.Q5.Q56 - Environment and Development • Environment and Trade • Sustainability • Environmental Accounts and Accounting • Environmental Equity • Population Growth, Management of Technology and Innovation, 0502 economics and business, 11. Sustainability, Regional science, Economics, Business and International Management, Circular Economy, ComputingMilieux_MISCELLANEOUS, Systematic Literature Review, JEL: Q - Agricultural and Natural Resource Economics • Environmental and Ecological Economics/Q.Q0 - General/Q.Q0.Q01 - Sustainable Development, 9. Industry and infrastructure, Circular economy, 05 social sciences, JEL: B - History of Economic Thought, Methodology, and Heterodox Approaches/B.B4 - Economic Methodology/B.B4.B40 - General, [SHS.ECO]Humanities and Social Sciences/Economics and Finance, Systematic review, Sustainability, MESH: Q01, O30, Q56, B40, 050211 marketing, JEL: O - Economic Development, Innovation, Technological Change, and Growth/O.O3 - Innovation • Research and Development • Technological Change • Intellectual Property Rights/O.O3.O30 - General, Innovation Spaces, Eco-Innovation, 050203 business & management
Abstract: This paper explores the way in which academics address the role of innovation spaces in the development of the circular economy. Considering their characteristics, objectives, and functioning, we assume that innovationspaces can be favorable environments for eco-innovations facilitating the implementation of circular economy strategies. To examine this hypothesis, this paper mobilizes a mixed research method based on bibliometric analysis of keywords and content analysis. The results show that these collaborative environments can: foster sustainable experimental learning, provide methodologies and tools for the co-creation of circular solutions, drive the transition toward sustainable smart cities, foster the creation of new sustainable business models, promote sustainable urban entrepreneurship, and facilitate knowledge exchange on circular solutions. However, most of the reviewed literature focuses mainly on their impacts on sustainability and less on the concept of the circular economy per se. Consequently, this work provides insights on the potential of these spaces in the circular strategies’ implementation.
Published: 2021
Full Text: View/download PDF

35. Morphology and phylogeny of Prorocentrum porosum sp. nov. (Dinophyceae): A new benthic toxic dinoflagellate from the Atlantic and Pacific Oceans

Author: Arteaga-Sogamoso, Edgar, Rodríguez, Francisco, Amato, Alberto, Ben-Gigirey, Begoña, Fraga, Santiago, Mafra, Luiz Laureno, Fernandes, Luciano Felício, de Azevedo Tibiriçá, Carlos Eduardo J, Chomérat, Nicolas, Nishimura, Tomohiro, Homma, Chiho, Adachi, Masao, Mancera-Pineda, José Ernesto, Instituto de Investigaciones Marinas y Costeras 'José Benito Vives de Andréis' (INVEMAR), Ministerio del Medio Ambiente, Colombie, Universidad Nacional de Colombia, sede Caribe, Centro Nacional Instituto Espanol de Oceanografia, Centro Oceanographico de Vigo (IEO-CSIC), European Union Reference Laboratory for Monitoring of Marine Biotoxins, Citexvi Campus Universitario de Vigo, LIPID, Physiologie cellulaire et végétale (LPCV), Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université Grenoble Alpes (UGA), Praza Mestra Manuela, Centro de Estudos do Mar, Universidade Federal do Parana, Departamento de Botânica, SCB, UFPR – Federal University of Parana, Curitiba, Brazil, Station de Biologie Marine de Concarneau, Direction générale déléguée à la Recherche, à l’Expertise, à la Valorisation et à l’Enseignement-Formation (DGD.REVE), Muséum national d'Histoire naturelle (MNHN)-Muséum national d'Histoire naturelle (MNHN), Cawthron Institute, Laboratory of Aquatic Environmental Science (LAQUES), Universidad Nacional de Colombia [Bogotà] (UNAL), Ministry of science, technology and innovation of Colombia - MINCIENCIAS (COLCIENCIAS), Universidad Nacional de Colombia-UNAL and CECIMAR (contribution number: 547, within the project 'Influencia de recursos y reguladores en la abundancia de dinoflagelados bentonicos del Caribe', Hermes Code: 40410), The Marine and Coastal Research Institute 'Jose Benito Vives de Andreis' (INVEMAR, contribution number: 1343) and Environmental and Sustainable Development Ministry-MINAMBIENTE through BPIN project, The International Atomic Energy Agency (IAEA) through the Research Contract RC#18827 ('Bentox Project') and the TechnicalCooperation projects RLA/7/014 and RLA/7/020, Project DIANAS (CTM2017-86066-R, MICINN), CCVIEO-10 (IEO, Spanish Institute ofOceanography), Axencia Galega de Innovacion (agreement GAIN-IEO), COLCIENCIAS grant (call No.727–2015), and Cross-ministerial Strategic Innovation Promotion Program, Grants from the Project of the NARO Bio-oriented Technology Research Advancement Institution (the special scheme project on vitalizing management entities of agriculture, forestry and fisheries), and Japan Society for the Promotion of Science (JSPS) Bilateral Joint Research Projects (JSPS-RSNZ Joint Research Project: JPJSBP120211002)
Subjects: LSU, Okadaic acid, [SDV]Life Sciences [q-bio], [SDE]Environmental Sciences, Prorocentrum porosum, Plant Science, ITS, Aquatic Science, [SDV.BID.SPT]Life Sciences [q-bio]/Biodiversity/Systematics, Phylogenetics and taxonomy, Phylogeny, Taxonomy
Abstract: International audience; A new marine benthic toxic Prorocentrum species is described from the tropical/subtropical regions of the Atlantic (Colombian Caribbean Sea and Northeast Brazil) and Pacific (Southern Japan) oceans. Morphological cell structures were examined using light (LM) and scanning electron (SEM) microscopy. Prorocentrum porosum sp. nov. was characterized by 35.9-50.2 μm long and 25.4-45.7 μm deep cells, covered by broadly ovoid symmetric thecal plates. The surface of both thecal plates is smooth and covered by randomly scattered kidney-shaped pores (n = 102-149), rounder towards the center, absent in the central part, and surrounded by a conspicuous marginal ring of about 69-92 evenly spaced pores. Broad V-shaped periflagellar area exhibiting flagellar and accessory pores. The molecular phylogenetic position of P. porosum sp. nov. was inferred using partial LSU rRNA gene (rDNA) and rDNA ITS sequences. This new species branched with high support in a Prorocentrum clade including P. caipirignum, P. hoffmannianum and P. cf. lima (P. lima morphotype 5 sensuZhang et al., 2015). Pairwise comparison of ITS1 and ITS2 transcripts with these closest relatives revealed the presence of compensatory base changes (CBCs), with the exception of P. cf. lima (P. lima morphotype 5), which only showed in ITS2 a hemi-CBC (HCBC) and two base changes that possibly induce a structural modification. Toxin analyses performed in two Colombian and Brazilian strains in the present study detected the presence of low amounts of okadaic acid.
Published: 2023
Full Text: View/download PDF

36. Chemical product design integrating MCDA : Performance prediction and human preferences modelling

Author: Oscar Yesid Suárez Palacios, Christian Fonteix, Mauricio Camargo, Paulo César Narváez Rincón, Jean-Pierre Corriou, Departamento de Ingenieria Quimica y Ambiental [Universidad Nacional de Colombia] (DIQA), Universidad Nacional de Colombia [Bogotà] (UNAL), Equipe de Recherche sur les Processus Innovatifs (ERPI), Université de Lorraine (UL), Laboratoire Réactions et Génie des Procédés (LRGP), Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS), Colciencias, and Centre National de la Recherche Scientifique (CNRS)-Université de Lorraine (UL)
Subjects: Product design, Computer science, General Chemical Engineering, Process design, 02 engineering and technology, MCDA, 021001 nanoscience & nanotechnology, Multiple-criteria decision analysis, Human knowledge, [SPI.MAT]Engineering Sciences [physics]/Materials, glycerol esters, 020401 chemical engineering, chemical product design, design methodology, Performance prediction, Process optimization, [SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering, Product (category theory), Biochemical engineering, 0204 chemical engineering, PVC plasticizers, 0210 nano-technology, Design methods
Abstract: International audience; Computation‐based techniques and modelling of human knowledge and preferences by using multi‐criteria decision aid (MCDA) methods are integrated in a multi‐scale and multi‐disciplinary approach for the chemical product and process design. The proposed methodology has four main stages: (a) construction of a molecular model for predicting product performance, (b) validation of product performance, (c) selection of alternatives integrating preferences of manufacturers and consumers, and (d) process optimization implementing MCDA methods. The methodology is oriented to find new products that can replace components of formulations, whose performance is already known. It was applied to an exploratory study about the use of glycerol as raw material to produce plasticizers for polyvinyl chloride (PVC), replacing 2‐ethylhexyl phthalate (DEHP). The results of the case study and the proposed process design offer promising prospects regarding their application in other chemical products.
Published: 2021
Full Text: View/download PDF

37. Geochronology of monazite related to REE, Nb-Ta and U-Th bearing minerals from Mesoproterozoic anorogenic magmatism in the E-Colombian Amazonian Craton: links to mantle plume activity in the Columbia (Nuna) supercontinent

Author: Alexandre de Oliveira Chaves, Marc Poujol, Jose Alejandro Franco Victoria, Heinrich A. Horn, Thomas Cramer, Universidad Nacional de Colombia [Bogotà] (UNAL), Universidade Federal de Minas Gerais [Belo Horizonte] (UFMG), Géosciences Rennes (GR), Université de Rennes (UR)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR), Université de Rennes (UR)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Centre National de la Recherche Scientifique (CNRS), Universidad Nacional de Colombia Hermes 35441, 35441, Universidade Federal de Minas Gerais, Funds CTeI of the Sistema General de Regalias, Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 1 (UR1), and Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)
Subjects: 010506 paleontology, Outcrop, Geochemistry, 010502 geochemistry & geophysics, 01 natural sciences, Supercontinent, Mantle plume, Geologic time scale, U-Pb and EPMA geochronology, [SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry, monazite, Pegmatite, 0105 earth and related environmental sciences, Earth-Surface Processes, geography, geography.geographical_feature_category, Geology, 15. Life on land, Craton, Monazite, anorogenic magmatism, Columbia (Nuna) supercontinent, Geochronology, mantle plume, [SDU.STU.MI]Sciences of the Universe [physics]/Earth Sciences/Mineralogy
Abstract: International audience; U-Th-Pb geochronology of REE-bearing minerals such as monazite and other phosphates has become a precise tool to date mineralization events through geological time. In the E-Colombian Guainía department, from 3 colluvial sites over western Guiana Shield Mesoproterozoic rocks Nb-Ta, U-Th and REE bearing minerals probably of pegmatitic origin were sampled including up-to-0.5 cm long monazite crystals. The monazite pan concentrate samples from sites near to the indigenous communities of Barranquilla, San Jose and Chorro Bocón (Espina hills) along the Cuyari, Guainía, and Inírida rivers respectively, were analyzed geochemically and geochronologically using LA-ICP-MS and EPMA. The monazites obtained from the 3 sites are rather similar among each another and of approximate composition Ce0.44La0.16Nd0.16Sm004Y0.03Gd0.02Dy0.01Pr0.05Th0.08Pb0.01Ca0.05Si0.05P0.91O3.94. Their EPMA and LA-ICP-MS ages suggest at least two mineralization events, a first one between 1528 and 1523 Ma in the Barranquilla and San Jose sites, related to rapakivi granites outcropping along the Cuyarí River and the Tabaquen rapakivi granite near the Guainía River, both emplaced ~1545 Ma ago. The second mineralization event from 1390-1343 Ma recorded in the Espina-hills is in the age range of the Matraca and Danta rapakivi granites that crystalized between 1400 and 1340 Ma ago. These different anorogenic rapakivi granites were emplaced between 1550 and 1300 Ma into Mesoproterozoic basement rocks and were probably caused by intra-plate processes associated with mantle plume activity within the Columbia (Nuna) supercontinent.
Published: 2021
Full Text: View/download PDF

38. Shaping a Public Innovation Laboratory in Bogota: Learning through Time, Space and Stakeholders

Author: José Ismael Peña, Carlos Sandoval, Mauricio Camargo, Ferney Osorio, Laurent Dupont, Equipe de Recherche sur les Processus Innovatifs (ERPI), Université de Lorraine (UL), Universidad Nacional de Colombia [Bogotà] (UNAL), and Grupo de Investigación en Sistemas y TIC en las Organizaciones (GISTIC )
Subjects: Economics and Econometrics, Knowledge management, business.industry, 4. Education, Strategy and Management, Corporate governance, 05 social sciences, Public sector, 0506 political science, Task (project management), Time space, Management of Technology and Innovation, 0502 economics and business, 050602 political science & public administration, [SHS.GESTION]Humanities and Social Sciences/Business administration, Financial modeling, Strategic management, Business, Limit (mathematics), Business and International Management, Adaptation (computer science), ComputingMilieux_MISCELLANEOUS, 050203 business & management
Abstract: Public and private organizations are turning to innovation labs as open spaces that provide a stimulating and collaborative environment for developing new solutions. However, sustaining an innovation lab is a challenging task that requires more than well-meant intentions. Although this issue has been of interest to scholars for some time now, little is known about how innovation labs are managed or the main factors influencing their adaptation and evolution. Building on an existing framework, this article focuses on a case study of the ViveLab Bogota, an innovation lab in the Colombian public sector. The results reveal that having a clear and shared strategic intent, effective governance mechanisms, a defined financial model, continuous knowledge generation and a community-based approach, are factors that may enable or limit an innovation lab to experience a sustainable evolution. Finally, reflections are also shared on the use of the selected framework and possible points for improvement. JEL Codes: O32, O35, O38, O54
Published: 2020
Full Text: View/download PDF

39. Molecular and morphological recognition of species boundaries in the neglected ant genus Brachymyrmex (Hymenoptera: Formicidae): toward a taxonomic revision

Author: Claudia M. Ortiz-Sepulveda, Fernando Fernández, Andrés D. Meneses, Bert Van Bocxlaer, Évolution, Écologie et Paléontologie (Evo-Eco-Paleo) - UMR 8198 (Evo-Eco-Paléo (EEP)), Université de Lille-Centre National de la Recherche Scientifique (CNRS), Universidad Nacional de Colombia [Bogotà] (UNAL), and Évolution, Écologie et Paléontologie (Evo-Eco-Paleo) - UMR 8198 (Evo-Eco-Paléo)
Subjects: 0106 biological sciences, Morphometrics, [SDV.GEN.GPO]Life Sciences [q-bio]/Genetics/Populations and Evolution [q-bio.PE], biology, Identification key, Subspecies, biology.organism_classification, 010603 evolutionary biology, 01 natural sciences, Intraspecific competition, [SDV.BA.ZI]Life Sciences [q-bio]/Animal biology/Invertebrate Zoology, Brachymyrmex, 010602 entomology, Monophyly, Taxon, Evolutionary biology, Taxonomy (biology), Ecology, Evolution, Behavior and Systematics
Abstract: International audience; Brachymyrmex is a neglected genus of Formicinae because of its small body size, soft mesosoma, and superficially monotonous external morphology. These features have complicated the documentation of morphological variation, resulting in poorly defined and incompletely described species. Consequently, the taxonomy of the genus is complex and problematic, which has impeded research and conservation efforts. Here, we integrate molecular and morphological data to recognize species boundaries in Brachymyrmex and to guide its long-overdue revision. Specifically, we (1) redefine the limits of all described species, subspecies, and varieties based on intra-and interspecific morphological variation in workers; (2) document this variation quantitatively by constructing morphospace occupation and statistically analyzing measurements; (3) synthesize our findings on diagnostic traits in a dichotomous, illustrated identification key; and (4) examine the significance of our morphological identification system with molecular evidence from four gene fragments (EF1aEF1, EF1aEF2, WG, and COI). We recognize 40 species, of which four are new to science: Brachymyrmex bahamensis, Brachymyrmex bicolor, Brachymyrmex iridescens, and Brachymyrmex sosai. Furthermore, Brachymyrmex attenuatus and Brachymyrmex bonariensis are raised to species, and we propose 25 new synonyms. Morphometrics indicated that even poorly distinguishable species pairs show statistically significant differences in some traits, and that taxonomically problematic cases relate to taxa that demonstrate large intraspecific trait variance. Our molecular analysis supports the monophyly of the genus based on increased taxon sampling, and of the 19 species that were included 18 were retrieved as monophyletic. The single case of incongruence was also flagged in morphological analyses and requires extended geographic sampling before it can be resolved. In conclusion, the molecular work corroborates the morphologically recognized species boundaries. We also document the presence of worker dimorphism and putative worker-queen intercastes in several Brachymyrmex species, which indicates that the genus may present a promising study system to understand caste evolution in ants.
Published: 2019
Full Text: View/download PDF

40. Medical gesture recognition using dynamic arc length warping

Author: Jenny Cifuentes, Pierre Boulanger, Richard Moreau, Flavio Prieto, Minh Tu Pham, Universidad de La Salle [Bogotá, Colombia], Ampère, Département Méthodes pour l'Ingénierie des Systèmes (MIS), Ampère (AMPERE), École Centrale de Lyon (ECL), Université de Lyon-Université de Lyon-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-École Centrale de Lyon (ECL), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Department of Computing Science, University of Alberta, University of Alberta, Universidad Nacional de Colombia (COLOMBIA), and Universidad Nacional de Colombia [Bogotà] (UNAL)
Subjects: Dynamic time warping, Gesture classification, Computer science, 0206 medical engineering, Health Informatics, 02 engineering and technology, [SPI.AUTO]Engineering Sciences [physics]/Automatic, 03 medical and health sciences, 0302 clinical medicine, Computer vision, Image warping, Invariant (mathematics), Hand motion tracking, Artificial neural network, business.industry, Perceptron, Curvature analysis, Dynamic arc length warping, 020601 biomedical engineering, Gesture recognition, Signal Processing, Artificial intelligence, business, Arc length, 030217 neurology & neurosurgery, Gesture
Abstract: International audience; Hand gesture recognition is a promising research area often used in applications of human–computer interactions in the medical field. In this paper, we present a novel approach to differentiate gestures based on an arc-length parametrization and a curvature analysis of 3D trajectories. This new method called dynamic arc length warping (DALW) can outperform classic multi dimensional-dynamic time warping (MD-DTW) algorithm as it is invariant to sensor location and more tolerant to temporal distortions. Experimental validation of the algorithm is presented using different gestures and sensors in biomedical applications: an exoskeleton apparatus, surgical gestures captured by an instrumented laparoscopic device and finally, a birth simulator with an instrumented forceps. A basic perceptron multilayer neural network was implemented in order to perform the classification. Results involve an average increase of 7.14% in the classification rates by using DALW distance, compared to the classical MD-DTW.
Published: 2019
Full Text: View/download PDF

41. Multiobjective optimization for the design of phase III biorefinery sustainable supply chain

Author: Miguel Domingo Alfaro Marchant, Mauricio Camargo, Andrea Teresa Espinoza Pérez, Paulo César Narváez Rincón, Equipe de Recherche sur les Processus Innovatifs (ERPI), Université de Lorraine (UL), Universidad de Santiago de Chile [Santiago] (USACH), and Universidad Nacional de Colombia [Bogotà] (UNAL)
Subjects: Computer science, 020209 energy, Strategy and Management, 02 engineering and technology, 7. Clean energy, Multi-objective optimization, Industrial and Manufacturing Engineering, 12. Responsible consumption, 020401 chemical engineering, Phase (matter), 11. Sustainability, 0202 electrical engineering, electronic engineering, information engineering, [SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering, 0204 chemical engineering, Process engineering, General Environmental Science, 2. Zero hunger, [SDE.IE]Environmental Sciences/Environmental Engineering, 9. Industry and infrastructure, Renewable Energy, Sustainability and the Environment, business.industry, Sustainable supply chain, Biorefinery, [INFO.INFO-MO]Computer Science [cs]/Modeling and Simulation, 13. Climate action, business
Abstract: International audience; Bioeconomy has gained importance during the last decade as a frame of reference for the design and implementation of policies to foster sustainable development and innovation. Considering the need for society to move to forms of production in which generation of wastes and the use of fossil fuels must be minimized or eliminated, Phase III biorefineries (mix feedstock and multiple products) have emerged as a promising and central element in bioeconomy. However, its industrial development has been slower than expected, especially due to investors’ poor perception of technological risk and large investment required. Among the current climate change challenges, the need of methodologies and tools to develop an optimal supply chain for a biorefinery, including all the aspects of sustainability and considering the territorial context of the project is fundamental. The present work proposes a comprehensive decision-making approach for a Phase III biorefinery project, by integrating all the sustainability dimensions. This approach is formalized and solved thanks to a multiobjective optimization model, where sustainability criteria are included in the formulation of objective functions, decision variables and constraints. To illustrate the proposed approach, a case study was developed for the Colombian context. The resulting Pareto fronts shown that biorefineries integrating different types of raw materials, even non-food crops, are economical feasible in North Colombia.
Published: 2019
Full Text: View/download PDF

42. Incorporation of heuristic knowledge in the optimal design of formulated products: Application to a cosmetic emulsion

Author: Laure Morel, Mauricio Camargo, Fernando P. Bernardo, Alvaro Orjuela, Javier A. Arrieta-Escobar, Grupo de Investigación en Procesos Químicos y Bioquímicos, Universidad Nacional de Colombia [Bogotà] (UNAL), Equipe de Recherche sur les Processus Innovatifs (ERPI), Université de Lorraine (UL), and Universidade de Coimbra [Coimbra]
Subjects: Optimization, Optimal design, Hair Conditioner, Product Design, Computer science, Heuristic, Emulsion, 020209 energy, General Chemical Engineering, media_common.quotation_subject, 02 engineering and technology, Cosmetics, Computer Science Applications, [CHIM.GENI]Chemical Sciences/Chemical engineering, 020401 chemical engineering, 0202 electrical engineering, electronic engineering, information engineering, Cosmetic, Heuristics, [SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering, Biochemical engineering, 0204 chemical engineering, media_common
Abstract: International audience; In particular industrial sectors, such as the cosmetic, there is a considerable amount of heuristics during the formulation stage, namely regarding qualitative function of ingredients, their incompatibilities, synergies and antagonisms, as well as their impact on sensorial attributes. In this work, the heuristic knowledge around the formulation of cosmetics emulsions has been incorporated into a systematic CAMD methodology. The methodology was tested in the creation of rinse-off hair conditioners. From an initial list of ingredients (i.e. twenty-four emollients, six thickeners and five emulsifiers) and a set of heuristics for their incorporation into cosmetic formulations, a group of optimized alternatives under specific performance and economic targets was obtained. Nine of the resulting formulations were prepared and then analyzed using instrumental methods. The rheological, textural and microstructural characteristics were similar for most of the samples, confirming the potential of this proposed methodology in designing and tailoring formulated products.
Published: 2019
Full Text: View/download PDF

43. Making the strategic intent of innovation labs operational: A process perspective on the case of the Lorraine Fab Living Lab

Author: Ferney Osorio, Laurent Dupont, Mauricio Camargo, José Ismael Peña, Universidad Nacional de Colombia [Bogotà] (UNAL), Equipe de Recherche sur les Processus Innovatifs (ERPI), Université de Lorraine (UL), University of Strathclyde, and OSORIO, Ferney
Subjects: strategy-making, [SPI.OTHER]Engineering Sciences [physics]/Other, case study, strategic intent, JEL: L - Industrial Organization/L.L3 - Nonprofit Organizations and Public Enterprise, [SPI.OTHER] Engineering Sciences [physics]/Other, JEL: O - Economic Development, Innovation, Technological Change, and Growth, innovation lab, JEL: O - Economic Development, Innovation, Technological Change, and Growth/O.O3 - Innovation • Research and Development • Technological Change • Intellectual Property Rights/O.O3.O32 - Management of Technological Innovation and R&D, [SHS.GESTION]Humanities and Social Sciences/Business administration, [SHS.GESTION] Humanities and Social Sciences/Business administration, JEL: L - Industrial Organization/L.L2 - Firm Objectives, Organization, and Behavior
Abstract: International audience; This paper examines through a single case study the process in which strategic intent is built within an innovation lab. As collaborative innovation structures, innovation labs are sensitive to collision of visions leading to misalignments that could undermine their purpose. Therefore, this study explores from a managerial point of view the way in which an innovation lab is designed, implemented, and sustained in a university context. Results depict the different manifestations of strategic intent that (1) led to the reorganization of existing capabilities under the original idea that gave life to the lab, (2) drove the experimentation and adaptation stages that shaped our case, and (3) favored the institutionalization of the practices and routines resulting from the lab to its ecosystem. This suggests the potential use of the framework to be applied as a coherence-building tool from which strategic intent could be made recognizable and operational.
Published: 2021

44. Cassava diseases caused by Xanthomonas phaseoli pv. manihotis and Xanthomonas cassavae

Author: Zárate‐Chaves, Carlos, Gómez de la Cruz, Diana, Verdier, Valérie, López, Camilo, Bernal, Adriana, Szurek, Boris, Plant Health Institute of Montpellier (UMR PHIM), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut de Recherche pour le Développement (IRD)-Université de Montpellier (UM)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), The Sainsbury Laboratory [Norwich] (TSL), Universidad Nacional de Colombia [Bogotà] (UNAL), Universidad de los Andes [Bogota] (UNIANDES), Challenge Research Program on RTB, ANR-10-LABX-0001,AGRO,Agricultural Sciences for sustainable Development(2010), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut de Recherche pour le Développement (IRD)-Université de Montpellier (UM)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Agro - Montpellier SupAgro, and Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)
Subjects: quantitative resistance, Xanthomonas, fungi, cassava bacterial blight, food and beverages, cassava bacterial necrosis, cassava, [SDV.BV.PEP]Life Sciences [q-bio]/Vegetal Biology/Phytopathology and phytopharmacy
Abstract: International audience; Xanthomonas phaseoli pv. manihotis (Xpm) and X. cassavae (Xc) are two bacterial pathogens attacking cassava. Cassava bacterial blight (CBB) is a systemic disease caused by Xpm, which might have dramatic effects on plant growth and crop production. Cassava bacterial necrosis is a nonvascular disease caused by Xc with foliar symptoms similar to CBB, but its impacts on the plant vigour and the crop are limited. In this review, we describe the epidemiology and ecology of the two pathogens, the impacts and management of the diseases, and the main research achievements for each pathosystem. Because Xc data are sparse, our main focus is on Xpm and CBB.
Published: 2021
Full Text: View/download PDF

45. 'Plantas que toda la vida han estado': una co-investigación alrededor de la cocina y las relaciones bioculturales asociadas a plantas alimenticias locales en la ruralidad de Bogotá

Author: Consuegra, Cristina, Ortiz, Stefan, Cely Santos, Marcela, Van der Hammen, María Clara, Pérez, Darío, Leuphana Universität Lüneburg, Universidad Nacional de Colombia [Bogotà] (UNAL), Rachel Carson Centre, Partenaires INRAE, Universidad Externado de Colombia, Plant Health Institute of Montpellier (UMR PHIM), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut de Recherche pour le Développement (IRD)-Université de Montpellier (UM)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Patrimoines locaux, Environnement et Globalisation (PALOC), Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Sorbonne Université (SU), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut de Recherche pour le Développement (IRD)-Université de Montpellier (UM)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Agro - Montpellier SupAgro, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut de Recherche pour le Développement (IRD)-Université de Montpellier (UM)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), and Sorbonne Université (SU)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)
Subjects: [SDE.ES]Environmental Sciences/Environmental and Society, [SDV.AEN]Life Sciences [q-bio]/Food and Nutrition, [SHS]Humanities and Social Sciences
Abstract: International audience; A process of co-research with farmers in the rural area of Bogotá, documented traditional culinary practices and held meetings to discuss their territorial implications and the challenges of their transformations. The dialogues promoted the reactivation of memories and perceptions, linking the space of kitchens and territories, and included conversations on the risks and opportunities of innovations triggered by urban-rural relations. This research sheds light on the persistence of linkages related to local biodiversity, which represent a key asset for the conservation of biocultural diversity and of the material and immaterial heritage of Bogota.; A través de un proceso de co-investigación con sabedores de la ruralidad bogotana, se documentaron prácticas culinarias tradicionales y se realizaron encuentros para conversar sobre sus implicaciones territoriales y los desafíos de sus transformaciones. El diálogo permitió reactivar la memoria y las percepciones que, desde la cocina, remiten al territorio, y conversar sobre los riesgos y potencialidades de las innovaciones en las prácticas suscitadas, considerando la porosidad de las fronteras urbano-rurales. Se evidencia una persistencia de conocimientos y relaciones con la biodiversidad local, que representan un acervo esencial para pensar la conservación y dinamización de la diversidad biocultural y su integración como parte del patrimonio cultural material e inmaterial de Bogotá.
Published: 2021
Full Text: View/download PDF

46. TAL Effector Repertoires of Strains of Xanthomonas phaseoli pv. manihotis in Commercial Cassava Crops Reveal High Diversity at the Country Scale

Author: Zárate-Chaves, Carlos, Osorio-Rodríguez, Daniela, Mora, Rubén, Perez-Quintero, Alvaro, Dereeper, Alexis, Restrepo, Silvia, Lopez, Camilo, Szurek, Boris, Bernal, Adriana, Plant Health Institute of Montpellier (UMR PHIM), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut de Recherche pour le Développement (IRD)-Université de Montpellier (UM)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Agro - Montpellier SupAgro, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro), Universidad de los Andes [Bogota] (UNIANDES), Universidad Nacional de Colombia [Bogotà] (UNAL), Colombian Ministry of Sciences (Former Colciencias), through project No. 315-2013, Universidad de los Andes and its Basic Sciences funding through multiple research projects (seed project NUMBER assigned to CAZ and Project No. INV-2019-84-1855 assigned to AB), Research Program on Roots, Tubers and Bananas, Agropolis Foundation (project #1403-073), doctoral fellowship awarded by the Insitut de Recherche pour le Developpement., Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut de Recherche pour le Développement (IRD)-Université de Montpellier (UM)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), and Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)
Subjects: EBE prediction, transcriptomics, [SDV.BBM.GTP]Life Sciences [q-bio]/Biochemistry, Molecular Biology/Genomics [q-bio.GN], cassava bacterial blight, food and beverages, host target genes, susceptibility, SWEET, [SDV.BV.PEP]Life Sciences [q-bio]/Vegetal Biology/Phytopathology and phytopharmacy
Abstract: International audience; Transcription activator-like effectors (TALEs) play a significant role for pathogenesis in several xanthomonad pathosystems. Xanthomonas phaseoli pv. manihotis (Xpm), the causal agent of Cassava Bacterial Blight (CBB), uses TALEs to manipulate host metabolism. Information about Xpm TALEs and their target genes in cassava is scarce, but has been growing in the last few years. We aimed to characterize the TALE diversity in Colombian strains of Xpm and to screen for TALE-targeted gene candidates. We selected eighteen Xpm strains based on neutral genetic diversity at a country scale to depict the TALE diversity among isolates from cassava productive regions. RFLP analysis showed that Xpm strains carry TALomes with a bimodal size distribution, and affinity-based clustering of the sequenced TALEs condensed this variability mainly into five clusters. We report on the identification of 13 novel variants of TALEs in Xpm, as well as a functional variant with 22 repeats that activates the susceptibility gene MeSWEET10a, a previously reported target of TAL20(Xam668). Transcriptomics and EBE prediction analyses resulted in the selection of several TALE-targeted candidate genes and two potential cases of functional convergence. This study provides new bases for assessing novel potential TALE targets in the Xpm-cassava interaction, which could be important factors that define the fate of the infection.
Published: 2021
Full Text: View/download PDF

47. Mineralogía y geocronología de rutilo-(Nb,Ta) relacionado a casiterita y columbita-tantalita provenientes de rocas Mesoproterozoicas del Cratón Amazónico cerca de Cachicamo, Colombia

Author: Thomas Cramer, Amed Bonilla, Zeze Amaya, Antonio Jose Castañeda, José Alejandro Franco, Marc Poujol, Universidad Nacional de Colombia [Bogotà] (UNAL), Julius-Maximilians-Universität Würzburg (JMU), Géosciences Rennes (GR), Université de Rennes (UR)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR), Université de Rennes (UR)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Centre National de la Recherche Scientifique (CNRS), Julius-Maximilians-Universität Würzburg [Wurtzbourg, Allemagne] (JMU), Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 1 (UR1), and Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)
Subjects: Physics, 010506 paleontology, pXRF, Geochronology, Rutile-(Nb, Amazonian Craton, Rutilo-(Nb, Cratón Amazónico, Geocronología, Colombia, 010502 geochemistry & geophysics, Mineralogy, 01 natural sciences, [SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry, Ta), General Earth and Planetary Sciences, Humanities, Mineralogía, FRXp, 0105 earth and related environmental sciences, [SDU.STU.MI]Sciences of the Universe [physics]/Earth Sciences/Mineralogy
Abstract: International audience; In order to clarify if rutile-(Nb,Ta) mega-crystals in the Indigenous Cachicamo community (NE-Vichada-department, Colombia) are derived from rocks of the Parguaza Rapakivi Granite suite, samples were extracted from a ferruginous duricrust layer (composed of hematite, goethite, limonite, ± magnetite, ilmenite, zircon, and rock fragments) of a lateritic profile over granitoid basement rocks and analyzed together with soils and concentrates. Density and pXRF measurements of >250 rutiles revealed a strong variation from low-density (~3.4 g/cm3), nearly-pure TiO2-rutiles, to rutile-(Nb,Ta) crystals (up-to 5.9 g/cm3) enriched in Nb, Ta, Fe, Mn, Sn, V and W. Metallography, SEM-EDX, XRF and XRD exhibited up-to 0.2 mm- inclusions of ~17% columbite-(Fe) and 4% cassiterite in a ~78% rutile-(Nb,Ta) matrix, where EPMA values of ~72% TiO2, 11% Nb2O5, 9% Ta2O5, 6% Fe2O3 and 1.5% SnO2 confirm, together with low W and Mn, pegmatitic-pneumatolytic conditions. ICP-MS measurements yielded enough U for encouraging LA-ICP-MS dating in the University of Rennes 1, where, using rutile standards R10 and R19, in ten rutile-(Nb,Ta) crystals, concordant U/Pb-ages of 1512±12 My were determined. These ages confirm the former assumption based on field observation that the Cachicamo rutiles-(Nb,Ta) originally crystalized within the 1500-1550 My-old Parguaza Granite in Venezuela, where secondary deposits contain similar (sub-?) economic cassiterite, rutile-(Nb,Ta), columbite-tantalite and monazite. Additionally, the analysis of different horizons containing zircon, ilmenite and magnetite, showed that rutiles-(Nb,Ta) are restricted to the duricrust horizon. Detrital zircons from the A-horizon (duricrust) revealed a similar age span of 1525 My, which is coeval with the Parguaza Batholith reported in Venezuela, whereas ages of 1415 My of zircons from the C-horizon (regolith) coincide with the local Parguaza Rapakivi Granite ages (1340-1402 My). Hence, this study supports a nonlocal source for the Cachicamo rutile-(Nb,Ta) crystals, which probably had experienced a post-exhumation transport westward over several tens of kilometres through a zone which nowadays is deepened by the Orinoco-river valley.; Para resolver la pregunta si megacristales de rutilo-(Nb,Ta) en la Comunidad Indígena de Cachicamo (NE-Vichada) provienen de rocas del Granito Rapakivi de Parguaza se extrajeron rutilos de una coraza ferruginosa superficial o duricrust compuesta por (hematita, limonita, ± magnetita, ilmenita, circón, fragmentos de roca), desarrollada sobre un perfil laterítico del basamento granítico, que fueron analizados junto a suelos y concentrados. Mediciones simultáneas de densidad y FRXp de >250 rutilos revelaron variaciones fuertes desde rutilos livianos (~3,4 g/cm3), de casi puro TiO2, hasta rutilos-(Nb,Ta) de 5,9 g/cm3 enriquecidos en Nb, Ta, Fe, Mn, Sn, V y W. Metalografía, MEB-EDX, FRX y DRX revelaron inclusiones de hasta 0,2 mm compuestas de ~17% columbita-(Fe) y 4% casiterita en una matriz de ~78% rutilo-(Nb,Ta). Valores EPMA (72% TiO2, 11% Nb2O5, 9% Ta2O5, 6% Fe2O3, 1,5% SnO2) confirman junto con bajos contenidos de W y Mn una afinidad pegmatítica - pneumatolítica. Mediciones ICP-MS indicaron suficiente U para probar dataciones en la Universidad Rennes 1, donde, usando estándares R10 y R19, diez rutilos-(Nb,Ta), arrojaron edades de cristalización U/Pb concordantes de 1512±12 Ma.Estas edades coinciden con observaciones de campo, según las cuales los rutilos-(Nb,Ta) de Cachicamo cristalizaron en el Granito de Parguaza hace 1500-1550 Ma en Venezuela, donde depósitos secundarios contienen mineralizaciones comparables (sub-?) económicas de casiterita, rutilo-(Nb,Ta), columbita-tantalita y monacita. El análisis de minerales pesados (circón, ilmenita, magnetita) muestra que los rutilos-(Nb,Ta) se limitan al duricrust del horizonte A, donde circones detríticos de 1525 Ma son coetáneos al Batolito de Parguaza en Venezuela (1500-1550 Ma), mientras los circones del horizonte C (regolito) con 1415 Ma tienen edades similares al Granito Rapakivi Parguaza local (1340-1402 Ma) en estas partes distales del Batolito en Colombia. Así, los rutilos-(Nb,Ta) de Cachicamo no se pueden haber formado in-situ sino que experimentaron un transporte post-exhumación por decenas de kilómetros atravesando lo que actualmente es el valle del río Orinoco
Published: 2021
Full Text: View/download PDF

48. Predation and oviposition rates of Gaeolaelaps aculeifer and Parasitus bituberosus (Acari: Laelapidae and Parasitidae) on pre-pupae/pupae of Thrips tabaci (Thysanoptera: Thripidae)

Author: Castro-López, Mayerly Alejandra, Ramírez-Godoy, Augusto, Martínez Osorio, Wilson, Rueda-Ramírez, Diana, Universidad Nacional de Colombia [Bogotà] (UNAL), and Universidad Pedagógica y Tecnológica de Colombia (UPTC)
Subjects: 0106 biological sciences, Arthropoda, Population, biological control, Colombia, Parasitus, 01 natural sciences, Predation, Toxicology, [SDV.SA.STA]Life Sciences [q-bio]/Agricultural sciences/Sciences and technics of agriculture, Animalia, Acari, Laelapidae, education, Taxonomy, 2. Zero hunger, education.field_of_study, Thrips, biology, fungi, Thripidae, Biodiversity, edaphic mites, 15. Life on land, biology.organism_classification, Acariformes, Pupa, [SDV.BA.ZI]Life Sciences [q-bio]/Animal biology/Invertebrate Zoology, 010602 entomology, Insect Science, pupal stage, [SDV.EE.IEO]Life Sciences [q-bio]/Ecology, environment/Symbiosis
Abstract: Thrips tabaci Lindeman is one of the main insect pests of onion (Allium cepa L.) in Colombia and several other countries. Strategies for its control are currently based on the use of chemical products. In a recent survey, Gaeolaelaps aculeifer (Canestrini) and Parasitus bituberosus Karg, two soil-dwelling predatory mite species (Acari: Mesostigmata), were found associated with this crop at Boyacá department, Colombia. Given that T. tabaci spends its pre-pupal and pupal stages in the soil, this study was conducted to evaluate the predation and oviposition of G. aculeifer and P. bituberosus on these developmental stages under laboratory conditions. The predators consumed up to 6.8 ± 0.52 and 6.9 ± 0.45 T. tabaci pre-pupae/ pupae, respectively, when offered 6 –10 prey a day. The maximum oviposition rates were 4.4 ± 0.25 eggs/female/day for G. aculeifer and 6.9 ± 0.26 eggs/female/day for P. bituberosus, with a mean egg viability higher than 91% for both predators. These results suggest that the evaluated predators may affect the population of T. tabaci under field conditions, and that the conduction of complementary studies on those predators is warranted, envisioning their practical use for T. tabaci control in Colombia., Acarologia, 61, 394-402
Published: 2021
Full Text: View/download PDF

49. Emerging contaminants: analysis, aquatic compartments and water pollution

Author: Cui Li, Guorui Liu, Margarida Ribau Teixeira, Lorenzo A. Picos-Corrales, Didier Hocquet, Friederike Stock, Nadia Morin-Crini, Grégorio Crini, Ana R. Ribeiro, Abhishek Pandey, Vysetti Balaram, Liliana Giraldo, Eric Lichtfouse, Eric Carmona, Zhijiang Lu, Giangiacomo Torri, Juan Carlos Moreno-Piraján, Laboratoire Chrono-environnement (UMR 6249) (LCE), Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC), Xi'an Jiaotong University (Xjtu), Centre européen de recherche et d'enseignement des géosciences de l'environnement (CEREGE), Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Collège de France (CdF (institution))-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences [Beijing] (CAS), National Geophysical Research Institute [Hyderabad] (NGRI), Laboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials (LSRE-LCM), Faculdade de Engenharia (LSRE-LCM), Universidade do Porto = University of Porto, Zhejiang University, University of Algarve [Portugal], Universidad Autónoma de Sinaloa (UAS), Universidad de los Andes [Bogota] (UNIANDES), Universidad Nacional de Colombia [Bogotà] (UNAL), Chinese Academy of Sciences [Changchun Branch] (CAS), Jiwaji University, Istituto di Chimica e Biochimica G. Ronzoni, Lichtfouse E., Schwarzbauer J., and Didier R.
Subjects: Microplastics, Food industry, Biological agents, Environmental protection, Pesticides, Water pollution, Rare earth elements, Water sector, Emerging contaminants, Aquatic compartments, business.industry, Persistent organic pollutants, Substances of global concern, Contamination, Alkylphenols, Water resources, Agriculture, Personal care products, Environmental science, Nanoparticles, Pharmaceuticals, [SDE.BE]Environmental Sciences/Biodiversity and Ecology, business, Analysis
Abstract: International audience; Over the past two decades, the presence of so-called emerging contaminants in various environmental compartments around the world, such as water, sediments, soils and atmosphere, and in a wide variety of consumer products has become a major concern for society, public health authorities, industry (namely food industry and water sector) and the agricultural sector. Some of these substances are endocrine disruptors and others are proven carcinogens and mutagens. In particular, there is a growing concern about the presence of emerging contaminants in water resources.The list of substances and products is particularly long: pesticides, pharmaceuti-cals, drugs of abuse (including licit and illicit drugs), cosmetics, personal care prod-ucts, surfactants, cleaning products, industrial formulations and chemicals, food additives, food packaging, metalloids, rare earth elements, nanomaterials, micro-plastics and pathogens. Most of these substances are found not only in domestic wastewater and industrial discharges, but also in surface and ground water, and consequently in drinking water and food sources. Therefore, emerging contami-nants entering the aquatic compartment may cause known, unknown or suspected adverse effects on the ecosystems and/or human health. Many molecules have been classified in recent years as priority or priority hazardous substances, and thus, the industrial world and the municipal wastewater treatment plants are particularly con-cerned by the release of these substances by virtue of increasingly strict regulations. However, existing conventional municipal wastewater treatment plants and drinking water treatment plants were not designed for eliminating these new contaminants. In addition, most emerging contaminants are not yet routinely monitored either in industrial discharges or in the environment. From an academic point of view, emerging substances are also of great interest to the scientific community and receive special attention. The areas of research concern not only their effects on human health and their impact on environment, but also their sources, analysis and fate in the environment, as well as their remediation. Indeed, their behavior in the environ-ment and their effects on all living organisms remain largely unknown. Many sub-stances are difficult to remove by conventional water treatment processes. Thus, there is an intense research activity on all these topics.The objective of this chapter is to present a recent state of knowledge on emerging substances and their presence in the aquatic environment. After general considerations on emerging contaminants, the first part is focused on chromatographic methods coupled to mass spectrometry for their analysis and detection, and on detection of microplastics in water and sediment. The presence of alkylphenols, rare earth elements and nanoparticles in the aquatic environment is then discussed. Finally, examples of contamination described from around the world, from China to Portugal, Mexico, Colombia and Brazil, are presented.
Published: 2021
Full Text: View/download PDF

50. Mineralogía y geocronología de rutilo-(Nb,Ta) relacionado a casiterita y columbita-tantalita provenientes de rocas Mesoproterozoicas del Cratón Amazónico cerca de Cachicamo, Colombia

Author: Franco, José Alejandro, Cramer, Thomas, Bonilla, Amed, Castañeda, Antonio Jose, Poujol, Marc, Amaya, Zeze, Universidad Nacional de Colombia [Bogotà] (UNAL), Julius-Maximilians-Universität Würzburg [Wurtzbourg, Allemagne] (JMU), Géosciences Rennes (GR), Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 1 (UR1), and Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)
Subjects: pXRF, Geochronology, Rutile-(Nb, Amazonian Craton, Rutilo-(Nb, Cratón Amazónico, Geocronología, Colombia, Mineralogy, [SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry, Ta), Mineralogía, FRXp, [SDU.STU.MI]Sciences of the Universe [physics]/Earth Sciences/Mineralogy
Abstract: International audience; In order to clarify if rutile-(Nb,Ta) mega-crystals in the Indigenous Cachicamo community (NE-Vichada-department, Colombia) are derived from rocks of the Parguaza Rapakivi Granite suite, samples were extracted from a ferruginous duricrust layer (composed of hematite, goethite, limonite, ± magnetite, ilmenite, zircon, and rock fragments) of a lateritic profile over granitoid basement rocks and analyzed together with soils and concentrates. Density and pXRF measurements of >250 rutiles revealed a strong variation from low-density (~3.4 g/cm3), nearly-pure TiO2-rutiles, to rutile-(Nb,Ta) crystals (up-to 5.9 g/cm3) enriched in Nb, Ta, Fe, Mn, Sn, V and W. Metallography, SEM-EDX, XRF and XRD exhibited up-to 0.2 mm- inclusions of ~17% columbite-(Fe) and 4% cassiterite in a ~78% rutile-(Nb,Ta) matrix, where EPMA values of ~72% TiO2, 11% Nb2O5, 9% Ta2O5, 6% Fe2O3 and 1.5% SnO2 confirm, together with low W and Mn, pegmatitic-pneumatolytic conditions. ICP-MS measurements yielded enough U for encouraging LA-ICP-MS dating in the University of Rennes 1, where, using rutile standards R10 and R19, in ten rutile-(Nb,Ta) crystals, concordant U/Pb-ages of 1512±12 My were determined. These ages confirm the former assumption based on field observation that the Cachicamo rutiles-(Nb,Ta) originally crystalized within the 1500-1550 My-old Parguaza Granite in Venezuela, where secondary deposits contain similar (sub-?) economic cassiterite, rutile-(Nb,Ta), columbite-tantalite and monazite. Additionally, the analysis of different horizons containing zircon, ilmenite and magnetite, showed that rutiles-(Nb,Ta) are restricted to the duricrust horizon. Detrital zircons from the A-horizon (duricrust) revealed a similar age span of 1525 My, which is coeval with the Parguaza Batholith reported in Venezuela, whereas ages of 1415 My of zircons from the C-horizon (regolith) coincide with the local Parguaza Rapakivi Granite ages (1340-1402 My). Hence, this study supports a nonlocal source for the Cachicamo rutile-(Nb,Ta) crystals, which probably had experienced a post-exhumation transport westward over several tens of kilometres through a zone which nowadays is deepened by the Orinoco-river valley.; Para resolver la pregunta si megacristales de rutilo-(Nb,Ta) en la Comunidad Indígena de Cachicamo (NE-Vichada) provienen de rocas del Granito Rapakivi de Parguaza se extrajeron rutilos de una coraza ferruginosa superficial o duricrust compuesta por (hematita, limonita, ± magnetita, ilmenita, circón, fragmentos de roca), desarrollada sobre un perfil laterítico del basamento granítico, que fueron analizados junto a suelos y concentrados. Mediciones simultáneas de densidad y FRXp de >250 rutilos revelaron variaciones fuertes desde rutilos livianos (~3,4 g/cm3), de casi puro TiO2, hasta rutilos-(Nb,Ta) de 5,9 g/cm3 enriquecidos en Nb, Ta, Fe, Mn, Sn, V y W. Metalografía, MEB-EDX, FRX y DRX revelaron inclusiones de hasta 0,2 mm compuestas de ~17% columbita-(Fe) y 4% casiterita en una matriz de ~78% rutilo-(Nb,Ta). Valores EPMA (72% TiO2, 11% Nb2O5, 9% Ta2O5, 6% Fe2O3, 1,5% SnO2) confirman junto con bajos contenidos de W y Mn una afinidad pegmatítica - pneumatolítica. Mediciones ICP-MS indicaron suficiente U para probar dataciones en la Universidad Rennes 1, donde, usando estándares R10 y R19, diez rutilos-(Nb,Ta), arrojaron edades de cristalización U/Pb concordantes de 1512±12 Ma.Estas edades coinciden con observaciones de campo, según las cuales los rutilos-(Nb,Ta) de Cachicamo cristalizaron en el Granito de Parguaza hace 1500-1550 Ma en Venezuela, donde depósitos secundarios contienen mineralizaciones comparables (sub-?) económicas de casiterita, rutilo-(Nb,Ta), columbita-tantalita y monacita. El análisis de minerales pesados (circón, ilmenita, magnetita) muestra que los rutilos-(Nb,Ta) se limitan al duricrust del horizonte A, donde circones detríticos de 1525 Ma son coetáneos al Batolito de Parguaza en Venezuela (1500-1550 Ma), mientras los circones del horizonte C (regolito) con 1415 Ma tienen edades similares al Granito Rapakivi Parguaza local (1340-1402 Ma) en estas partes distales del Batolito en Colombia. Así, los rutilos-(Nb,Ta) de Cachicamo no se pueden haber formado in-situ sino que experimentaron un transporte post-exhumación por decenas de kilómetros atravesando lo que actualmente es el valle del río Orinoco
Published: 2021
Full Text: View/download PDF

Catalog

Books, media, physical & digital resources

See catalog results

Searchworks

Select search scope, currently: Articles Catalog books, media & more in Jio Institute collections Articles journal articles & other e-resources

Search

Search Constraints

Refine your results

Search Limiters

Topic

Publication Year Range

Language

Journal

Database

Publisher

230 results on '"Universidad Nacional de Colombia [Bogotà] (UNAL)"'

Search Results

Catalog

Select search scope, currently: Articles

Catalog

books, media & more in Jio Institute collections

Articles

journal articles & other e-resources