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1. GENETIC CHARACTERIZATION THE STOCKS OF PROCHILODUS MAGDALENAE (PISCES: PROCHILODONTIDAE) USED IN STOCKING PROGRAMS IN COLOMBIA

Author

de la Rosa J., Fontalvo P.P., Orozco-Berdugo G., and Narváez-Barandica J.C.

Subjects
bocachico, reophilic fish, magdalena basin, genetic structure, fish farms, Genetics, QH426-470
Abstract

Prochilodus magdalenae is an endemic fish species of Colombia known as an important resource of commercial interest for many communities related to fishing activities as a livelihood activity. However, population deterioration has been observed in natural environments due to factors such as overfishing, fragmentation of ecosystems, among others. This makes it necessary to characterize the genetic diversity of P. magdalenae in the productive systems of some fish farms, which are used to restocking in other basins of Colombia and, thus, to propose technical and scientific criteria that allow the development of management strategies for the conservation of this species. Therefore, in 2013, caudal fin tissue was collected from 1044 individuals in seven fish farms, which were processed in the laboratory. Through the use of seven microsatellites, genetic metrics such as: observed and expected heterozygosity, number of alleles, fixation indexes, F statistics, Bayesian grouping and AMOVA were evaluated. We observed low heterozygosity, correlated with inbreeding processes, which contrast with the high values obtained in the expected heterozygosity index and the number of alleles detected in P. magdalenae productive systems. A moderate genetic differentiation between fish centers was detected and the existence of three genetic groups was observed through the Bayesian analysis. Despite the low diversity reported regarding the others species of the same genus, populations held in Bocachico captivity have the potential to restore the diversity of wild populations. Therefore, it is suggested that each fish station should establish batches of breeders separately, based on their genetic information so that there is congruence between the released individuals and those that inhabit the natural environment.

Published
2020
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3. Implementation of binary stochastic STDP learning using chalcogenide-based memristive devices

Author

Mohan, C., Camuñas-Mesa, L. A., de la Rosa, J. M., Serrano-Gotarredona, T., and Linares-Barranco, B.

Subjects
Computer Science - Emerging Technologies, Electrical Engineering and Systems Science - Systems and Control
Abstract

The emergence of nano-scale memristive devices encouraged many different research areas to exploit their use in multiple applications. One of the proposed applications was to implement synaptic connections in bio-inspired neuromorphic systems. Large-scale neuromorphic hardware platforms are being developed with increasing number of neurons and synapses, having a critical bottleneck in the online learning capabilities. Spike-timing-dependent plasticity (STDP) is a widely used learning mechanism inspired by biology which updates the synaptic weight as a function of the temporal correlation between pre- and post-synaptic spikes. In this work, we demonstrate experimentally that binary stochastic STDP learning can be obtained from a memristor when the appropriate pulses are applied at both sides of the device.

Published
2021
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5. Semi-Huber quadratic function and comparative study of some MRFs for Bayesian image restoration

Author

de la Rosa J. I., Villa-Hernández J., González-Ramírez E., de la Rosa M. E., Gutiérrez O., Olvera-Olvera C., Castañeda-Miranda R., and Fleury G.

Subjects
digital image processing, image filtering, image deblurring, markov random fields (mrf), half-quadratic functions, Applied optics. Photonics, TA1501-1820, Optics. Light, QC350-467
Abstract

The present work introduces an alternative method to deal with digital image restoration into a Bayesian framework, particularly, the use of a new half-quadratic function is proposed which performance is satisfactory compared with respect to some other functions in existing literature. The bayesian methodology is based on the prior knowledge of some information that allows an efficient modelling of the image acquisition process. The edge preservation of objects into the image while smoothing noise is necessary in an adequate model. Thus, we use a convexity criteria given by a semi-Huber function to obtain adequate weighting of the cost functions (half-quadratic) to be minimized. The principal objective when using Bayesian methods based on the Markov Random Fields (MRF) in the context of image processing is to eliminate those effects caused by the excessive smoothness on the reconstruction process of image which are rich in contours or edges. A comparison between the new introduced scheme and other three existing schemes, for the cases of noise filtering and image deblurring, is presented. This collection of implemented methods is inspired of course on the use of MRFs such as the semi-Huber, the generalized Gaussian, the Welch, and Tukey potential functions with granularity control. The obtained results showed a satisfactory performance and the effectiveness of the proposed estimator with respect to other three estimators.

Published
2013
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6. MAP entropy estimation: applications in robust image filtering

Author

de la Rosa J. I., Villa-Hernandez J., de la Rosa M. E., Gonzalez-Ramirez E., Gutierrez O., Escalante N., Ivanov R., and Fleury G.

Subjects
digital image processing, image recognition, algorithms and filters, image reconstruction-restoration, inverse problems, Applied optics. Photonics, TA1501-1820, Optics. Light, QC350-467
Abstract

We introduce a new approach for image filtering in a Bayesian framework. In this case the probability density function (pdf) of the likelihood function is approximated using the concept of non-parametric or kernel estimation. The method is based on the generalized Gaussian Markov random fields (GGMRF), a class of Markov random fields which are used as prior information into the Bayesian rule, which principal objective is to eliminate those effects caused by the excessive smoothness on the reconstruction process of images which are rich in contours or edges. Accordingly to the hypothesis made for the present work, it is assumed a limited knowledge of the noise pdf, so the idea is to use a non-parametric estimator to estimate such a pdf and then apply the entropy to construct the cost function for the likelihood term. The previous idea leads to the construction of Maximum a posteriori (MAP) robust estimators, since the real systems are always exposed to continuous perturbations of unknown nature. Some promising results of three new MAP entropy estimators (MAPEE) for image filtering are presented, together with some concluding remarks.

Published
2013
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8. Pyridostigmine reduces mortality of patients with severe SARS-CoV-2 infection: A phase 2/3 randomized controlled trial

Author

Fragoso-Saavedra, Sergio, Núñez, Isaac, Audelo-Cruz, Belem M., Arias-Martínez, Sarahi, Manzur-Sandoval, Daniel, Quintero-Villegas, Alejandro, Benjamín García-González, H., Carbajal-Morelos, Sergio L., PoncedeLeón-Rosales, Sergio, Gotés-Palazuelos, José, Maza-Larrea, José A., Rosales-de la Rosa, J. Javier, Diaz-Rivera, Dafne, Luna-García, Edgar, Piten-Isidro, Elvira, Del Río-Estrada, Perla M., Fragoso-Saavedra, Mario, Caro-Vega, Yanink, Batina, Isabella, Islas-Weinstein, León, Iruegas-Nunez, David A., Calva, Juan J., Belaunzarán-Zamudio, Pablo F., Sierra-Madero, Juan, Crispín, José C., and Valdés-Ferrer, Sergio Iván

Published
2022
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9. SN 2015bh: NGC 2770's 4th supernova or a luminous blue variable on its way to a Wolf-Rayet star?

Author

Thöne, C. C., Postigo, A. de Ugarte, Leloudas, G., Gall, C., Cano, Z., Maeda, K., Schulze, S., Campana, S., Wiersema, K., Groh, J., de la Rosa, J., Bauer, F. E., Malesani, D., Maund, J., Morrell, N., and Beletsky, Y.

Subjects
Astrophysics - High Energy Astrophysical Phenomena, Astrophysics - Solar and Stellar Astrophysics
Abstract

Very massive stars in the final phases of their lives often show unpredictable outbursts that can mimic supernovae, so-called, "SN impostors", but the distinction is not always straigthforward. Here we present observations of a luminous blue variable (LBV) in NGC 2770 in outburst over more than 20 years that experienced a possible terminal explosion as type IIn SN in 2015, named SN 2015bh. This possible SN or "main event" was preceded by a precursor peaking $\sim$ 40 days before maximum. The total energy release of the main event is $\sim$1.8$\times$10$^{49}$ erg, which can be modeled by a $<$ 0.5 M$_\odot$ shell plunging into a dense CSM. All emission lines show a single narrow P-Cygni profile during the LBV phase and a double P-Cygni profile post maximum suggesting an association of this second component with the possible SN. Since 1994 the star has been redder than during a typical S-Dor like outburst. SN 2015bh lies within a spiral arm of NGC 2770 next to a number of small star-forming regions with a metallicity of $\sim$ 0.5 solar and a stellar population age of 7-10 Myr. SN 2015bh shares many similarities with SN 2009ip, which, together with other examples may form a new class of objects that exhibit outbursts a few decades prior to "hyper-eruption" or final core-collapse. If the star survives this event it is undoubtedly altered, and we suggest that these "zombie stars" may evolve from an LBV to a Wolf Rayet star over a very short timescale of only a few years. The final fate of these types of massive stars can only be determined with observations years after the possible SN., Comment: 29 pages, 20 figures

Published
2016
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12. UDP: an integral management system of embedded scripts implemented into the IMaX instrument of the Sunrise mission

Author

Munoz, R. Morales, Mellado, P., de la Rosa, J. Marco, and Team, IMaX

Subjects
Physics - Instrumentation and Detectors
Abstract

The UDP (User Defined Program) system is a scripting framework for controlling and extending instrumentation software. It has been specially designed for air- and space-borne instruments with flexibility, error control, reuse, automation, traceability and ease of development as its main objectives. All the system applications are connected through a database containing the valid script commands including descriptive information and source code. The system can be adapted to different projects without changes in the framework tools, thus achieving great level of flexibility and reusability. The UDP system comprises: an embedded system for the execution of scripts by the instrument software; automatic tools for aiding in the creation, modification, documentation and tracing of new scripting language commands; and interfaces for the creation of scripts and execution control., Comment: This paper has been presented in the SPIE 2008, Marselle, France

Published
2008
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18. GTCAO low-frequency tip-tilt offload to M2

Author

Jackson, Kathryn J., Schmidt, Dirk, Vernet, Elise, Marco de la Rosa, J., Rosich, J., Tubío, O., Basden, A., Patrón, J., Montilla, I., López, R. L., Puga, M., Simoes, R., González, E., Luis, M., de Paz, H., Huertas, M., Fernández, S., Navarro, S., Lombardi, G., Reyes, M., and Béjar, V. J. S.

Published
2024
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35. The European Solar Telescope

Author

Quintero Noda, C., primary, Schlichenmaier, R., additional, Bellot Rubio, L. R., additional, Löfdahl, M. G., additional, Khomenko, E., additional, Jurčák, J., additional, Leenaarts, J., additional, Kuckein, C., additional, González Manrique, S. J., additional, Gunár, S., additional, Nelson, C. J., additional, de la Cruz Rodríguez, J., additional, Tziotziou, K., additional, Tsiropoula, G., additional, Aulanier, G., additional, Aboudarham, J., additional, Allegri, D., additional, Alsina Ballester, E., additional, Amans, J. P., additional, Asensio Ramos, A., additional, Bailén, F. J., additional, Balaguer, M., additional, Baldini, V., additional, Balthasar, H., additional, Barata, T., additional, Barczynski, K., additional, Barreto Cabrera, M., additional, Baur, A., additional, Béchet, C., additional, Beck, C., additional, Belío-Asín, M., additional, Bello-González, N., additional, Belluzzi, L., additional, Bentley, R. D., additional, Berdyugina, S. V., additional, Berghmans, D., additional, Berlicki, A., additional, Berrilli, F., additional, Berkefeld, T., additional, Bettonvil, F., additional, Bianda, M., additional, Bienes Pérez, J., additional, Bonaque-González, S., additional, Brajša, R., additional, Bommier, V., additional, Bourdin, P.-A., additional, Burgos Martín, J., additional, Calchetti, D., additional, Calcines, A., additional, Calvo Tovar, J., additional, Campbell, R. J., additional, Carballo-Martín, Y., additional, Carbone, V., additional, Carlin, E. S., additional, Carlsson, M., additional, Castro López, J., additional, Cavaller, L., additional, Cavallini, F., additional, Cauzzi, G., additional, Cecconi, M., additional, Chulani, H. M., additional, Cirami, R., additional, Consolini, G., additional, Coretti, I., additional, Cosentino, R., additional, Cózar-Castellano, J., additional, Dalmasse, K., additional, Danilovic, S., additional, De Juan Ovelar, M., additional, Del Moro, D., additional, del Pino Alemán, T., additional, del Toro Iniesta, J. C., additional, Denker, C., additional, Dhara, S. K., additional, Di Marcantonio, P., additional, Díaz Baso, C. J., additional, Diercke, A., additional, Dineva, E., additional, Díaz-García, J. J., additional, Doerr, H.-P., additional, Doyle, G., additional, Erdelyi, R., additional, Ermolli, I., additional, Escobar Rodríguez, A., additional, Esteban Pozuelo, S., additional, Faurobert, M., additional, Felipe, T., additional, Feller, A., additional, Feijoo Amoedo, N., additional, Femenía Castellá, B., additional, Fernandes, J., additional, Ferro Rodríguez, I., additional, Figueroa, I., additional, Fletcher, L., additional, Franco Ordovas, A., additional, Gafeira, R., additional, Gardenghi, R., additional, Gelly, B., additional, Giorgi, F., additional, Gisler, D., additional, Giovannelli, L., additional, González, F., additional, González, J. B., additional, González-Cava, J. M., additional, González García, M., additional, Gömöry, P., additional, Gracia, F., additional, Grauf, B., additional, Greco, V., additional, Grivel, C., additional, Guerreiro, N., additional, Guglielmino, S. L., additional, Hammerschlag, R., additional, Hanslmeier, A., additional, Hansteen, V., additional, Heinzel, P., additional, Hernández-Delgado, A., additional, Hernández Suárez, E., additional, Hidalgo, S. L., additional, Hill, F., additional, Hizberger, J., additional, Hofmeister, S., additional, Jägers, A., additional, Janett, G., additional, Jarolim, R., additional, Jess, D., additional, Jiménez Mejías, D., additional, Jolissaint, L., additional, Kamlah, R., additional, Kapitán, J., additional, Kašparová, J., additional, Keller, C. U., additional, Kentischer, T., additional, Kiselman, D., additional, Kleint, L., additional, Klvana, M., additional, Kontogiannis, I., additional, Krishnappa, N., additional, Kučera, A., additional, Labrosse, N., additional, Lagg, A., additional, Landi Degl’Innocenti, E., additional, Langlois, M., additional, Lafon, M., additional, Laforgue, D., additional, Le Men, C., additional, Lepori, B., additional, Lepreti, F., additional, Lindberg, B., additional, Lilje, P. B., additional, López Ariste, A., additional, López Fernández, V. A., additional, López Jiménez, A. C., additional, López López, R., additional, Manso Sainz, R., additional, Marassi, A., additional, Marco de la Rosa, J., additional, Marino, J., additional, Marrero, J., additional, Martín, A., additional, Martín Gálvez, A., additional, Martín Hernando, Y., additional, Masciadri, E., additional, Martínez González, M., additional, Matta-Gómez, A., additional, Mato, A., additional, Mathioudakis, M., additional, Matthews, S., additional, Mein, P., additional, Merlos García, F., additional, Moity, J., additional, Montilla, I., additional, Molinaro, M., additional, Molodij, G., additional, Montoya, L. M., additional, Munari, M., additional, Murabito, M., additional, Núñez Cagigal, M., additional, Oliviero, M., additional, Orozco Suárez, D., additional, Ortiz, A., additional, Padilla-Hernández, C., additional, Paéz Mañá, E., additional, Paletou, F., additional, Pancorbo, J., additional, Pastor Cañedo, A., additional, Pastor Yabar, A., additional, Peat, A. W., additional, Pedichini, F., additional, Peixinho, N., additional, Peñate, J., additional, Pérez de Taoro, A., additional, Peter, H., additional, Petrovay, K., additional, Piazzesi, R., additional, Pietropaolo, E., additional, Pleier, O., additional, Poedts, S., additional, Pötzi, W., additional, Podladchikova, T., additional, Prieto, G., additional, Quintero Nehrkorn, J., additional, Ramelli, R., additional, Ramos Sapena, Y., additional, Rasilla, J. L., additional, Reardon, K., additional, Rebolo, R., additional, Regalado Olivares, S., additional, Reyes García-Talavera, M., additional, Riethmüller, T. L., additional, Rimmele, T., additional, Rodríguez Delgado, H., additional, Rodríguez González, N., additional, Rodríguez-Losada, J. A., additional, Rodríguez Ramos, L. F., additional, Romano, P., additional, Roth, M., additional, Rouppe van der Voort, L., additional, Rudawy, P., additional, Ruiz de Galarreta, C., additional, Rybák, J., additional, Salvade, A., additional, Sánchez-Capuchino, J., additional, Sánchez Rodríguez, M. L., additional, Sangiorgi, M., additional, Sayède, F., additional, Scharmer, G., additional, Scheiffelen, T., additional, Schmidt, W., additional, Schmieder, B., additional, Scirè, C., additional, Scuderi, S., additional, Siegel, B., additional, Sigwarth, M., additional, Simões, P. J. A., additional, Snik, F., additional, Sliepen, G., additional, Sobotka, M., additional, Socas-Navarro, H., additional, Sola La Serna, P., additional, Solanki, S. K., additional, Soler Trujillo, M., additional, Soltau, D., additional, Sordini, A., additional, Sosa Méndez, A., additional, Stangalini, M., additional, Steiner, O., additional, Stenflo, J. O., additional, Štěpán, J., additional, Strassmeier, K. G., additional, Sudar, D., additional, Suematsu, Y., additional, Sütterlin, P., additional, Tallon, M., additional, Temmer, M., additional, Tenegi, F., additional, Tritschler, A., additional, Trujillo Bueno, J., additional, Turchi, A., additional, Utz, D., additional, van Harten, G., additional, van Noort, M., additional, van Werkhoven, T., additional, Vansintjan, R., additional, Vaz Cedillo, J. J., additional, Vega Reyes, N., additional, Verma, M., additional, Veronig, A. M., additional, Viavattene, G., additional, Vitas, N., additional, Vögler, A., additional, von der Lühe, O., additional, Volkmer, R., additional, Waldmann, T. A., additional, Walton, D., additional, Wisniewska, A., additional, Zeman, J., additional, Zeuner, F., additional, Zhang, L. Q., additional, Zuccarello, F., additional, and Collados, M., additional

Published
2022
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42. Trade-Offs in the Design of CMOS Comparators

Author

Rodríguez-Vázquez, A., Delgado-Restituto, M., Domínguez-Castro, R., Medeiro, F., de la Rosa, J. M., Toumazou, Chris, editor, Moschytz, George, editor, Gilbert, Barrie, editor, and Kathiresan, Ganesh, editor

Published
2002
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43. Rogi Team Description

Author

de la Rosa, J. Ll., Innocenti, B., Montaner, M., Figueras, A., Muñoz, I., Ramon, J. A., Goos, G., editor, Hartmanis, J., editor, van Leeuwen, J., editor, Carbonell, Jaime G., editor, Siekmann, Jörg, editor, Birk, Andreas, editor, Coradeschi, Silvia, editor, and Tadokoro, Satoshi, editor

Published
2002
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44. Supervision of Robot Control

Author

Figueras, Albert, Colomer, Joan, Fossen, Thor I., de la Rosa, J. Lluis, Goos, G., editor, Hartmanis, J., editor, van Leeuwen, J., editor, Carbonell, Jaime G., editor, Siekmann, Jörg, editor, Birk, Andreas, editor, Coradeschi, Silvia, editor, and Tadokoro, Satoshi, editor

Published
2002
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50. Database of spatial distribution of non indigenous species in Spanish marine waters

Author

Carbonell, A. (Ana), Png-Gonzalez, L. (Lydia), Falcón, J.M. (Jesús), Comas-González, R. (Robert), Follana, G. (Guillermo), Cefali, M.E. (María Elena), Calvo-Manazza, M. (Matías), Díaz-Tapia, P. (Pilar), Rueda, J.L. (José Luis), Mateo-Ramírez, Á. (Ángel), Urra, J. (Javier), Velasco, E.M. (Eva María), Carbonell, A., Arroyo, N.L. (Nina Larissa), Ríos, P. (Pilar), Valls-Mir, M. (María), Guijarro, B. (Beatriz), Esteban-Acón, A. (Antonio), García-Ruiz, C. (Cristina), Díaz, D. (David), Real, E. (Enric), Vázquez-Luis, M. (Maite), Ruiz-Fernández, J.M. (Juan Manuel), González-Porto, M. (Marcos), Tello-Antón, M.O. (María Olvido), Bruque-Carmona, G. (Gerardo), Mata-Chacón, D. (Dulce), Cabezuelo-Hernández, A. (Alberto), Agudo-Bravo, L.M. (Luis Miguel), Ramos, A., Ros, M., Monterroso, O., Zurita, M.N., Herrera, R., Casasnovas, R., Racionero, C., De la Rosa, J., Vivas, M.S., Serradilla, J., Gofas, S., López García, E., Ballesteros-Fernández, E. (Enrique), Bárbara, I., Bañón, R. (Rafael), Altamirano, M., Izquierdo-Muñoz, A., Nash, F.T., Arias, A., Britó, A., García-Raso, E., and Sánchez-Conde, F.J. (Francisco Javier)

Abstract

Research in marine Spanish waters are focused on several actions to achieve an effectively management on protected areas, with the active participation of the stakeholders and research as basic tools for decision-making. Among these actions, there is one about the knowledge and control on NIS. One of its objectives is the creation of NIS factsheets, which are going to be added to the National Marine Biodiversity Geographical System (GIS) providing complementary information about taxonomic classification, common names, taxonomic synonyms, species illustrations, identification morphological characters, habitat in the native and introduced regions, biological and ecological traits, GenBank DNA sequences, world distribution, first record and evolution in the introduced areas, likely pathways of introduction, effects in the habitats and interaction with native species, and potential management measures to apply. The database will also provide data for (1) the European online platforms, (2) the environmental assessment for the Descriptor 2 (D2-NIS) of the EU Marine Strategy Framework Directive (MSFD), as well as (3) supporting decisions made by stakeholders. It is the result of extensive collaboration among scientist, manager’s and citizen science in the Spanish North-Atlantic, South-Atlantic, Gibraltar Strait-Alboran, Levantine-Balearic and Canary Islands marine divisions, providing an updated overview of the spatial distribution of relevant extended and invasive NIS of recent and established NIS introduced by maritime transport and aquaculture pathways, as well as on cryptogenic or native species in expansion due to the climatic water warming trend.

Published
2022

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