156 results on '"T. Arias"'
Search Results
2. Nutritional diagnoses in people with type 2 diabetes: association with metabolic, anthropometric, and dietary parameters
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María Victoria Landa-Anell, Fabiola M. Del Razo-Olvera, Irene Bodnar, Brenda Cordova-Isidro, Daniela Lagunas-Valdepeña, Ana T. Arias-Marroquín, Ana Cristina García-Ulloa, Marco Antonio Melgarejo-Hernández, Sergio Hernández-Jiménez, and for the Group of Study CAIPaDi
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nutritional diagnoses ,type 2 diabetes ,nutritional care process ,terminology of the nutritional care process ,medical nutrition therapy ,biochemical markers ,Nutrition. Foods and food supply ,TX341-641 - Abstract
BackgroundNutritional diagnosis involves identifying a nutritional problem, its cause, and the signs that indicate it to guide appropriate treatment. Few studies report on the most prevalent nutritional diagnoses in people living with type 2 diabetes (T2D).ObjectiveTo define nutritional diagnoses across different domains and their association with metabolic, anthropometric, and dietary parameters in individuals with T2D.MethodsA personalized nutritional intervention was conducted using the Nutrition Care Process (NCP) model, which encompasses assessment, diagnosis, intervention, and evaluation, utilizing standardized terminology from the Nutrition Care Process Terminology (NCPT). Two dietitians, trained and standardized in applying the NCP and NCPT, performed patient assessments and established the diagnoses. Patients over 18 years old with a diagnosis of T2D for less than 5 years were included.ResultsData from 2,050 patients were analyzed, of whom 55.3% were women, and 44.7% were men, with a median age of 57 and 54 years, respectively. The most prevalent nutritional diagnosis was excessive energy and carbohydrate intake. Diagnoses were distributed across domains: Intake (55.9%), Behavioral/Environmental (32.7%), Clinical (10.2%), and 1.2% without nutritional diagnosis. Significant intergroup differences were observed in anthropometric variables such as BMI, waist circumference, and body fat percentage (p
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- 2024
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3. Enigmatic Campyloxenus: Shedding light on the delayed origin of bioluminescence in ancient Gondwanan click beetles
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Michal Motyka, Dominik Kusy, Elizabeth T. Arias-Bohart, Seth M. Bybee, and Ladislav Bocak
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Entomology ,evolutionary biology ,phylogenetics ,Science - Abstract
Summary: Gondwanan elaterids, previously thought to be unrelated, include bioluminescent Campyloxenus earlier placed in bioluminescent Pyrophorinae. Genomic data suggest close relationships between Gondwanan groups. We maintain Morostomatinae and Hapatesinae and redefine Pityobiinae with Nearctic Pityobiini, Gondwanan Parablacini stat. nov., Campyloxenini stat. nov., and Tibionemini trib. nov. Their ancestors putatively underwent differentiation in Gondwana during the Cretaceous separation of southern continents. In contrast with their age, extant groups are species poor. Campyloxenus represents a recent origin of bioluminescence, no older than ∼53 my. Its large pronotal lanterns differ from Pyrophorini and resemble color patches of sympatric beetle co-mimics. This discovery highlights the fourth or fifth origin of bioluminescence in Elateroidea, alongside the lampyroid clade, click beetles Pyrophorini, Alampoides and Coctilelater in Anaissini (Pyrophorinae), and Balgus schnusei (Thylacosterninae). While our phylogenetic findings illuminate the phylogenetic aspects, the complete story awaits further field observations and in-depth genomic analyses of biochemical pathways used by bioluminescent elateroids.
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- 2023
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4. Advances in Materials and Techniques for Microbial Control
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Ronald Ordinola‐ Zapata, Maria T. Arias‐Moliz, Prasanna Neelakantan, Alejandro Perez‐Ron, and Joseph T. Crepps
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- 2022
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5. Transferring Quantified Emotion Knowledge for the Detection of Depression in Alzheimer’s Disease Using Forestnets
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P. A. Pérez-Toro, D. Rodríguez-Salas, T. Arias-Vergara, S. P. Bayerl, P. Klumpp, K. Riedhammer, M. Schuster, E. Nöth, A. Maier, and J. R. Orozco-Arroyave
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- 2023
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6. Exploring the Root Canal Microbiome in Previously Treated Teeth: A Comparative Study of Diversity and Metabolic Pathways Across Two Geographical Locations
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M. T. Arias‐Moliz, R. Ordinola‐Zapata, C. Staley, V. Pérez‐Carrasco, J. A. García‐Salcedo, D. Uroz‐Torres, and M. Soriano
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General Dentistry - Published
- 2023
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7. The relationship between dividend payout and economic policy uncertainty (EPU), ownership concentration and free cash flow in Chile
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Carlos P. Maquieira, José T. Arias, and Christian Espinosa-Méndez
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Economics and Econometrics - Published
- 2023
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8. Cooperatives of saving and credit: an alternative for local development in the province of Esmeraldas-Ecuador
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Orlin Álava Chila, Wendy T. Arias-Carpio, Hugo Ocampo Erazo, and Geraldine Benalcázar Caicedo
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- 2022
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9. Prevalence estimation of significant fibrosis because of <scp>NASH</scp> in Spain combining transient elastography and histology
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José L. Calleja, Jesús Rivera‐Esteban, Rocío Aller, Marta Hernández‐Conde, Javier Abad, Juan M. Pericàs, Hugo G. Benito, Miguel A. Serra, Amparo Escudero, Javier Ampuero, Ana Lucena, Yolanda Sánchez, María T. Arias‐Loste, Paula Iruzubieta, Manuel Romero‐Gómez, Salvador Augustin, Javier Crespo, Instituto de Salud Carlos III, Calleja, José Luis, Rivera-Esteban, Jesús, Hernández-Conde, Marta, Pericás Pulico, Juan Manuel, Ampuero, Javier, Arias-Loste, María Teresa, Iruzubieta, Paula, Romero-Gómez, Manuel, Augustin, Salvador, Crespo, Javier, Institut Català de la Salut, [Calleja JL, Hernández-Conde M, Abad J] Department of Gastroenterology and Hepatology, Hospital Universitario Puerta de Hierro, School of Medicine, Universidad Autónoma Madrid, IDIPHIM, Majadahonda, Spain. [Rivera-Esteban J] Unitat Hepàtica, Vall d'Hebron Hospital Universitari, Barcelona, Spain. Vall d'Hebron Institut de Recerca (VHIR), Barcelona, Spain. Universitat Autònoma de Barcelona, Bellaterra, Spain. [Aller R] Department of Gastroenterology, Clinic University Hospital, Medical School, Group of Biomedical Research in Critical Care Medicine (BioCritic), University of Valladolid, Valladolid, Spain. Research Unit, Clinic University Hospital, Medical School, Institute of Health Sciences of Castille and Leon (IECSCYL), Group of Biomedical Research in Critical Care Medicine (BioCritic), Valladolid, Spain. [Pericàs JM] Unitat Hepàtica, Vall d'Hebron Hospital Universitari, Barcelona, Spain. Vall d'Hebron Institut de Recerca (VHIR), Barcelona, Spain. [Augustin S] Unitat Hepàtica, Vall d'Hebron Hospital Universitari, Barcelona, Spain. Vall d'Hebron Institut de Recerca (VHIR), Barcelona, Spain. Universitat Autònoma de Barcelona, Bellaterra, Spain. Therapeutic Area Cardio-Metabolism and Respiratory Medicine, Boehringer Ingelheim International GmbH, Ingelheim am Rhein, Germany, and Vall d'Hebron Barcelona Hospital Campus
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enfermedades del sistema digestivo::enfermedades hepáticas::hígado graso::esteatosis hepática no alcohólica [ENFERMEDADES] ,Adult ,Liver Cirrhosis ,Transient elastography ,Diagnosis::Diagnostic Techniques and Procedures::Diagnostic Imaging::Ultrasonography::Elasticity Imaging Techniques [ANALYTICAL, DIAGNOSTIC AND THERAPEUTIC TECHNIQUES, AND EQUIPMENT] ,Non-alcoholic Fatty Liver Disease ,Prevalence ,Humans ,hepatic fibrosis ,Esteatosi hepàtica - Epidemiologia ,Prospective Studies ,liver biopsy ,Non-alcoholic steatohepatitis ,Retrospective Studies ,Hepatology ,Esteatosi hepàtica - Imatgeria ,nutritional and metabolic diseases ,Digestive System Diseases::Liver Diseases::Fatty Liver::Non-alcoholic Fatty Liver Disease [DISEASES] ,técnicas de investigación::métodos epidemiológicos::recopilación de datos::estadísticas vitales::morbilidad::prevalencia [TÉCNICAS Y EQUIPOS ANALÍTICOS, DIAGNÓSTICOS Y TERAPÉUTICOS] ,Fetge - Fibrosi - Imatgeria ,Investigative Techniques::Epidemiologic Methods::Data Collection::Vital Statistics::Morbidity::Prevalence [ANALYTICAL, DIAGNOSTIC AND THERAPEUTIC TECHNIQUES, AND EQUIPMENT] ,Liver biopsy ,transient elastography ,Fibrosis ,digestive system diseases ,Cross-Sectional Studies ,Liver ,Spain ,Elasticity Imaging Techniques ,non-alcoholic steatohepatitis ,Hepatic fibrosis ,diagnóstico::técnicas y procedimientos diagnósticos::diagnóstico por imagen::ecografía::elastografía [TÉCNICAS Y EQUIPOS ANALÍTICOS, DIAGNÓSTICOS Y TERAPÉUTICOS] - Abstract
[Background & Aims] Non-alcoholic fatty liver disease (NAFLD) has become a major public health problem, but the prevalence of fibrosis associated with non-alcoholic steatohepatitis (NASH) is largely unknown in the general population. This study aimed to provide an updated estimation of the prevalence of NASH fibrosis in Spain., [Methods] This was an observational, retrospective, cross-sectional, population-based study with merged data from two Spanish datasets: a large (N = 12 246) population-based cohort (ETHON), including transient elastography (TE) data, and a contemporary multi-centric biopsy-proven NASH cohort with paired TE data from tertiary centres (N = 501). Prevalence for each NASH fibrosis stage was estimated by crossing TE data from ETHON dataset with histology data from the biopsy-proven cohort., [Results] From the patients with valid TE in ETHON dataset (N = 11 440), 5.61% (95% confidence interval [95% CI]: 2.53-11.97) had a liver stiffness measurement (LSM) ≥ 8 kPa. The proportion attributable to NAFLD (using clinical variables and Controlled Attenuation Parameter) was 57.3% and thus, the estimated prevalence of population with LSM ≥ 8 kPa because of NAFLD was 3.21% (95% CI 1.13–8.75). In the biopsy-proven NASH cohort, 389 patients had LSM ≥ 8 kPa. Among these, 37% did not have significant fibrosis (F2-4). The estimated prevalence of NASH F2-3 and cirrhosis in Spain's adult population were 1.33% (95% CI 0.29–5.98) and 0.70% (95% CI 0.10–4.95) respectively., [Conclusions] These estimations provide an accurate picture of the current prevalence of NASH-related fibrosis in Spain and can serve as reference point for dimensioning the therapeutic efforts that will be required as NASH therapies become available., JC is a receptor of a grant of Fondo Investigaciones Sanitarias (FIS): PI18/01304. Immunomediated Nonalcoholic SteaTohepatItis; prevalence and CharacTerization. INSTInCT.
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- 2022
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10. High accuracy of spleen stiffness measurement in diagnosing clinically significant portal hypertension in metabolic‐associated fatty liver disease
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Aitor Odriozola, Ángela Puente, Antonio Cuadrado, Paula Iruzubieta, María T. Arias‐Loste, Carlos Redondo, Coral Rivas, Emilio Fábrega, Javier Crespo, and José I. Fortea
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Hepatology - Published
- 2023
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11. From genetic neighbourhood to local community: Estimating a key parameter of the Unified Neutral Theory of Biodiversity A partir del vecindario genético al vecindario de comunidad: Estimación de un parámetro clave de la Teoría Neutral Unificada de la biodiversidad
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BARRY J RICHARDSON and ELIZABETH T ARIAS-BOHART
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Araucaria ,comunidad de coleópteros ,estructura de la comunidad ,estimación del parámetro J ,Nothofagus ,beetle communities ,effective community size ,estimating parameter J ,Zoology ,QL1-991 ,Botany ,QK1-989 - Abstract
Issues related to the size and nature of what is termed a ''local community'' in a continuous metacommunity under unified neutral theory are explored. Developments in the parallel field of neutral genetics theory allow the size of genetic neighbourhoods in the context of isolation by distance processes to be calculated. These suggest a way to estimate the geographical size of an equivalent form of local community in ecology. It is derived from the estimated spatial autocorrelation value at zero geographical distance and this is obtained using the distribution of the relative frequencies of species in field samples separated by varying geographical distance. A data set of 62000 beetles collected for other purposes, and consisting of beetle samples collected by fogging 52 trees in Nothofagus spp. forest and 24 trees in Araucaria forest distributed in southern Chile were used to demonstrate the proposed methods. Local communities had estimated effective community sizes (Je) of ~12000 individuals in each forest type for predators and ~30000 for phytophages/xylophage beetle communities. These numbers can be used in available software to estimate the number of species and the distribution of specimens between species in a local community. The geographical size of a local community can be used in other ways. Firstly, because it is related to the distance moved between birth and breeding, it provides information on the geographical scale of community processes; it gives a measure of the scales over which speedy recolonization is possible and scales over which breaks in the habitat cannot be easily crossed. Secondly, replicate samples geographically separated by less than the area of a local community are not independent, but pseudoreplicate measures of the characteristics of the metacommunity.Se exploran los problemas relacionados con el tamaño y la naturaleza de lo que se denomina una "comunidad local" en una metacomunidad continua, en el contexto de la Teoría Neutral Unificada. Avances en el campo de la Teoría neutral de la Genética permiten calcular el tamaño de un vecindario genético en el contexto de aislamiento a través de procesos de distancia, lo cual sugiere una manera de estimar los tamaños equivalentes de una comunidad local (el vecindario de la comunidad ecológica). Ellos se deriva estimando valores de autocorrelación espacial a la distancia geográfica cero, lo cual se obtiene usando la distribución de frecuencias relativas de las especies de las muestras de campos, separadas por distintas distancias geográficas. Para demostrar los métodos propuestos, consistentes muestras de coleópteros fueron colectadas con la fumigación de 52 árboles en bosques de Nothofagus y 24 árboles en bosques de Araucaria, los cuales estaban ampliamente distribuidos en el centro sur de Chile. También se obtuvo un set de datos de 62000 coleópteros para otros propósitos. El tamaño efectivo estimado de las comunidades de coleópteros locales para cada tipo de bosque es alrededor de 12000 individuos para depredadores y 30000 individuos para fitófago/xilófagos. Por otra parte, la extensión geográfica de la comunidad de un barrio puede ser utilizados de otras maneras. En primer lugar, porque se relaciona con la distancia recorrida entre el nacimiento y la crianza, lo que proporciona información sobre los procesos de la comunidad a escala geográfica; entrega medidas de escalas donde la recolonización rápida es posible y escalas en las cuales las sobre que barreras no son fáciles de pasar en un hábitat. En segundo lugar, las réplicas de muestras geográficamente separadas por el tamaño de la comunidad de un barrio, no son independientes, representando pseudoréplicas de la metacomunidad característica.
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- 2011
12. Why so many apparently rare beetles in Chilean temperate rainforests? ¿Por qué hay tantos coleópteros presuntamente raros en los bosques templados de Chile?
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BARRY J RICHARDSON and ELIZABETH T ARIAS-BOHART
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curvas de abundancia de especies ,estimadores de diversidad biológica ,tamaño corporal y densidad ,species abundance curves ,biodiversity estimation ,body size and density ,Zoology ,QL1-991 ,Botany ,QK1-989 - Abstract
Species abundance curves were calculated from data sets collected by fogging 52 trees in Nothofagus forest (~46000 specimens) and 24 trees in Araucaria forest (~15000 specimens) in Chile. Neither data set fitted the standard species abundance models. Like similar data sets collected from tropical forests, there were too many species represented by single specimens. The proposal that these were vagrants normally found on other tree species was not supported as, unlike tropical forests, Nothofagus forests are not diverse, often consisting of single species stands. Examination of three assumptions of the most parsimonious equilibrium models showed them to be false. Between them the observations of undersampling bias, community disequilibria and combining data from different feeding guilds with different species abundance curves are likely to be sufficient to explain the divergence of data for large speciose beetle communities from the predictions of any of the equilibrium models. Until these three factors can be fully accounted for and residual divergence detected, there is no necessity to propose further, more complex, mechanisms to explain such data sets. Estimated values of alpha and Simpson D were shown to be strongly sample size dependent, affecting their value as estimators of biological diversity.Se calcularon curvas de abundancia de especies a partir de datos obtenidos por medio de nebulización de 52 árboles en bosques de Nothofagus (aproximadamente 46000 ejemplares) y 24 árboles en bosques de Araucaria araucana (aproximadamente 15000 ejemplares) en Chile. Los datos obtenidos no se ajustan a los modelos estándares de abundancia de especies, al igual que los datos obtenidos de bosques tropicales, existen muchas especies representadas por ejemplares únicos. La hipótesis de que los mencionados ejemplares únicos son erráticos y que se encuentran normalmente en otros árboles no fue aceptada, contrario a los bosques tropicales, los bosques de Nothofagus no son diversos y generalmente lo conforman una sola especie. El análisis de tres supuestos a partir de los modelos de equilibrio más parsimoniosos, demostró que dichos modelos son falsos. Entre ellos, las observaciones de muestreo afectadas por sesgo, desequilibrio de la comunidad y la combinación de datos procedentes de distintos estratos alimenticios con diferentes curvas de abundancia de especies, parecen ser suficientes para poder explicar la divergencia de los datos para las comunidades de coleópteros con alto número de especies, a partir del supuesto de cualquier modelo de equilibrio. Hasta que estos tres factores se puedan tomar en cuenta y se pueda detectar divergencia residual, no existe necesidad de proponer mecanismos más complejos para explicar dichos datos. Los valores estimados de alfa y Simson D están estrechamente correlacionados al tamaño de la muestra, lo cual afecta su valor como estimador de la diversidad biológica.
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- 2011
13. Description of Sharon gen. nov. for the Chilean species Asaphes amoenus Philippi, 1861 (Coleoptera: Elateridae)
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Elizabeth T. Arias-Bohart and Mario Elgueta
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Coleoptera ,Asaphes ,Sharon gen. nov. ,Chile ,new genus ,Zoology ,QL1-991 ,Botany ,QK1-989 - Abstract
Sharon gen. nov. is here described to include Asaphes? amoenus Philippi, 1861 comb. nov. from Chile. A redescription of the species is based on the female holotype and material from different geographic locations. Candèze (1891) placed Asaphes amoenus and Parasaphes elegans in the suprageneric group Asaphites. We discuss differences between Sharon gen. nov. and Hemicrepidius Germar, 1839, where Asaphes amoenus was later placed by Blackwelder (1944). Based on morphological characters, Sharon gen. nov. appears to be related to Parasaphes Candèze, 1881, Wynarka Calder, 1986, and Tasmanelater Calder, 1996, all from Australia, suggesting Gondwanan relationships.
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- 2015
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14. LYNNYELLA, A NEW GENUS OF CLICK BEETLES FROM CENTRAL AND SOUTHERN CHILE (COLEOPTERA: ELATERIDAE) LYNNYELLA, UN NUEVO GÉNERO DE ESCARABAJO DEL CENTRO-SUR DE CHILE (COLEOPERA: ELATERIDAE)
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Elizabeth T. Arias
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Deromeus suturalis ,Lynnyella ,Pomachiliini ,Elaterinae ,Elateridae ,Deromecus suturalis ,Oceanography ,GC1-1581 ,Zoology ,QL1-991 - Abstract
The new genus Lynnyella is here described. The type species for the genus Lynnyella is Deromecus suturalis (Candèze 1865). The new genus Lynnyella belongs to the tribe Pomachiliini and includes: L. suturalis (Candèze 1865) n. comb., L. concepcionensis Arias n. sp., L. diegoi Arias n. sp., L. gerhardtae Arias n. sp., L. juanjoseorum Arias n. sp., L. longaviensis Arias n. sp., and L. valenciai Arias n. sp. The genus Lynnyella is distributed in Central and Southern Chile. The geographic distributions of these species are mapped and a key is providedSe describe Lynnyella, nuevo género de Elateridae para Chile, el cual tiene como especie tipo a Deromecus suturalis Candèze 1865. Este género pertenece a la tribu Pomachiliini, e incluye las siguientes especies: L. suturalis n. comb., L. concepcionensis Arias n. sp., L. diegoi Arias n. sp., L. gerhardtae Arias n. sp., L. juanjoseorum Arias n. sp., L. longaviensis Arias n. sp., y L. valenciai Arias n. sp. Las especies del género Lynnyella se encuentran distribuidas en la zona centro y sur de Chile. Se proporciona un mapa con la distribución geográfica para las especies mencionadas y una clave de éstas
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- 2001
15. Fred Gordon Andrews (November 15, 1933 to April 16, 2019): In Memoriam
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Julie Andrews, Chris Hartley, Elizabeth T. Arias-Bohart, Rolf L. Aalbu, Joseph V. McHugh, Andrew R. Cline, Norman J. Smith, and Arthur J. Gilbert
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Geography ,Insect Science - Published
- 2020
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16. Standardization of antimicrobial testing of dental devices
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Cristina Bettencourt Neves, Petros Koidis, Filomena Martins, Cher Farrugia, Christèle Combes, D. Rabadijeva, Ana Bettencourt, Livia Visai, T. Arias Moliz, Judite Costa, D. Rodriguez, Josette Camilleri, University of Birmingham [Birmingham], Universidad de Granada (UGR), Faculdade de Farmácia da Universidade de Lisboa, Bulgarian Academy of Sciences (BAS), Université polytechnique de Catalogne (UPC), Università di Pavia, Centre interuniversitaire de recherche et d'ingenierie des matériaux (CIRIMAT), Centre National de la Recherche Scientifique (CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Institut de Chimie du CNRS (INC), University of Sheffield [Sheffield], University of Malta [Malta], Aristotle University of Thessaloniki, Universitat Politècnica de Catalunya. Departament de Ciència i Enginyeria de Materials, Universitat Politècnica de Catalunya. BBT - Biomaterials, Biomecànica i Enginyeria de Teixits, University of Birmingham, University of Sheffield, Université de Toulouse, Universität Basel, Université Toulouse III - Paul Sabatier, Aristotle University of Thessaloniki (GREECE), Bulgarian Academy of Sciences (BULGARIA), Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Universitat Politècnica de Catalunya - UPC (SPAIN), University of Sheffield (UNITED KINGDOM), University of Birmingham (UNITED KINGDOM), Universidad de Granada - UGR (SPAIN), Universidade de Lisboa - ULisboa (PORTUGAL), Università di Pavia (ITALY), and Centre Interuniversitaire de Recherche et d'Ingénierie des Matériaux - CIRIMAT (Toulouse, France)
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Dental devices ,Materials science ,Standardization ,Dental materials ,Matériaux ,Materials dentals ,Médecine humaine et pathologie ,02 engineering and technology ,Materials testing ,Oral cavity ,Biological Testing ,[SPI.MAT]Engineering Sciences [physics]/Materials ,03 medical and health sciences ,0302 clinical medicine ,Characterization methods ,Anti-Infective Agents ,Materials Testing ,Microbial colonization ,General Materials Science ,General Dentistry ,Mouth ,Antimicrobial testing ,030206 dentistry ,021001 nanoscience & nanotechnology ,Antimicrobial ,3. Good health ,Anti-Bacterial Agents ,Enginyeria biomèdica::Biomaterials::Materials dentals [Àrees temàtiques de la UPC] ,Mechanics of Materials ,[SDV.IB]Life Sciences [q-bio]/Bioengineering ,Biochemical engineering ,0210 nano-technology ,Material chemistry - Abstract
OBJECTIVE: Dental device is a very broad term that can be used to include any foreign material or product that is introduced in the host oral cavity to replace missing tissues. These devices are subjected to different environments which include dental hard tissues, tissue fluids, blood and saliva. All dental devices are continuously challenged microbiologically and a number of failures in clinical management are related to microbial colonization. Thus, the assessment of the antimicrobial properties of dental devices are extremely important. In this paper, a classification of dental devices is being proposed. This classification distinguishes the devices based on whether they are implantable or not, and also sub-classified based on their specific application and the substrate receiving the device. METHODS AND RESULTS: A literature search was conducted to identify how dental devices have been tested with relation to the microbial strains used and whether the testing has been performed in isolation or reported with other relevant tests such as material characterization and biological activity. The results of the literature review were analyzed and recommendations for antimicrobial testing of dental devices are proposed. These recommendations include the need for the setting up of pre-testing parameters such as ageing and the details of the pre-testing sterilization procedures, as these may affect the material chemistry and the specification for antimicrobial testing to be done with specific single strains or polymicrobial that are native to the region where the device is located are also suggested. Testing can be undertaken in vitro, ex vivo and in vivo. Since the antimicrobial and biological activities influence/condition one another and the material chemistry may affect both the antimicrobial and biological testing this document also makes recommendations regarding biological assessment which can be carried out in isolation or integrated with the microbiological testing and also material testing methods including chemical and physical characterization of bulk, surface, eluted and degraded materials as well as physical characterization methods. SIGNIFICANCE: The level of standardization of antimicrobial testing for the dental devices needs to be based on the device location and host interaction in order to increase the clinical applicability of the mentioned tests.
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- 2020
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17. The first case report of a patient with acquired factor XIII deficiency in the context of autoimmune encephalitis
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C. Palomo, A. Bernardo, I. Noval, T. Arias, C. Ramón, and I. Soto
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Autoimmune encephalitis ,business.industry ,MEDLINE ,Context (language use) ,Acquired Factor XIII Deficiency ,Hematology ,General Medicine ,030204 cardiovascular system & hematology ,03 medical and health sciences ,0302 clinical medicine ,Immunology ,Medicine ,business ,030217 neurology & neurosurgery ,Genetics (clinical) - Published
- 2017
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18. Evaluación del clima organizacional en una Institución de Media Superior
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V. Ríos Romero, A. González Torres, F. Y. Mendoza Montero, E. R. Poblano Ojinaga, and T. Arias Rodríguez
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fortalecimiento ,cohesión grupal ,evaluación ,clima organizacional - Abstract
El presente trabajo tiene el propósito de evaluar el clima organizacional en una institución de educación media superior (IEMS) ubicada en el municipio de Chalco, Estado de México. Para la investigación se realizó un estudio empleando una confiabilidad del 100%. Se empleó una metodología descriptiva – analítica con una población de 34 personas. Se utilizó un instrumento validado para medir el clima organizacional. Los resultados, obtenidos ayudaron a poder medir en primera instancia el clima organizacional de la institución, dando como resultado integral un 62.56%; así mismo, para trabajo a futuro se aplicó la técnica de grupo nominal (TGN), la cual ayudo a tener un acuerdo de trabajar en primera instancia el fortalecimiento de una cohesión grupal.
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- 2019
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19. Speech differences between CI users with pre- and postlingual onset of deafness detected by speech processing methods on voiceless to voice transitions
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T Arias Vergara, Sandra Gollwitzer, Elmar Nöth, C Högerle, Juan Rafael Orozco-Arroyave, Maria Schuster, and Juan Camilo Vásquez-Correa
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medicine.medical_specialty ,Cochlear Implant ,Pathological speech ,020207 software engineering ,02 engineering and technology ,Audiology ,Speech processing ,0202 electrical engineering, electronic engineering, information engineering ,medicine ,020201 artificial intelligence & image processing ,Onset/offset transitions ,Psychology ,Postlingual onset - Abstract
Introduction: The onset of deafness affects speech in different ways. Speech differences of Cochlear Implant (CI) users with pre- and postlingual deafness are examined using acoustic features extracted automatically from speech. Methods: Utterances of 22 prelingual (15 up to 71 years old) and 22 postlingual CI users (15 up to 78 years old) were analyzed. All patients read 97 words, which contain every phoneme of the German language in different positions within the words. Speech analysis is performed in the transitions from voiceless to voiced sounds that mark the precise control of speech movement patterns. To extract the transitions, we search for the boundary between voiceless and voiced sounds using the fundamental frequency with a constant segment of 80 ms to the left and right. The feature set includes 13 Mel-Frequency Cepstral Coefficients and their 1st and 2nd derivatives. The mean, standard deviation, skewness and kurtosis are computed from the descriptors, forming a 156-dimensional feature vector. Wilcoxon signed-rank test is used to find differences between the pre- and postlingual groups. Results: The Wilcoxon signed-rank test was performed for each descriptor and significant differences between the pre- and postlingual groups (α < 0.05) were found in 8 of the 156 features. Additionally, a support vector regressor was trained to evaluate the age independence of the selected features. According to the results, there was not a strong correlation between the age of the speakers and the selected features (ρ < 0.40). Conclusions: Speech patterns differ significantly between pre- and postlingual CI users at the transitions of voiceless to voiced sounds. Other acoustic features are to be examined and considered in the rehabilitation after cochlear implantation.
- Published
- 2019
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20. Antimicrobial efficacy of cordless sonic or ultrasonic devices on Enterococcus faecalis-infected root canals
- Author
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Giacomo Corsentino, Riccardo Messina, Gianna Tempera, Simone Grandini, Silvia Rapisarda, Giusy Rita Maria La Rosa, Maria T. Arias‐Moliz, Eugenio Pedullà, and Carlo Genovese
- Subjects
sodium hypochlorite ,Dentistry ,EndoActivator ,Enterococcus faecalis ,03 medical and health sciences ,chemistry.chemical_compound ,0302 clinical medicine ,Anti-Infective Agents ,Medicine ,Humans ,Therapeutic Irrigation ,Syringe ,Cordless ,biology ,Root Canal Irrigants ,business.industry ,Antimicrobial efficacy ,Ultrasound ,EndoUltra ,cordless ultrasonic device ,Dental Pulp Cavity ,Root Canal Preparation ,Sodium Hypochlorite ,030206 dentistry ,General Medicine ,biology.organism_classification ,Antimicrobial ,chemistry ,030220 oncology & carcinogenesis ,Sodium hypochlorite ,Ultrasonic sensor ,business - Abstract
The aim of the present study was to evaluate the immediate and residual antimicrobial activity of cordless sonic or ultrasonic devices on Enterococcus faecalis (E faecalis)-infected teeth.A total of 140 single-rooted extracted teeth with E faecalis were grouped as follows (N = 15): conventional syringe irrigation with 3% sodium hypochlorite activated by ultrasonic device (group 1) or cordless ultrasonic device (group 2), EndoActivator (group 3) or without activation (group 4), conventional syringe irrigation with sterile bi-distilled water and ultrasonic device (group 5), EndoUltra (group 6), EndoActivator (group 7), or without activation (group 8). The remaining 20 teeth were used for positive and negative controls. Colony-forming units (CFU) and turbidity were recorded from bacteriological samples taken before and after irrigation and after 24 hours of re-incubation. Data were statistically analyzed using Student's t test, Mann-Whitney test, Kruskal-Wallis test, and Dunn's multiple comparison tests (P .05).Groups 1 and 2 showed higher antimicrobial efficacy than groups 3 and 4 (P .05). No bacteria reduction was found in groups 5-8 (P .05). After 24 hours, regrowth of bacteria was not significantly different for all groups (P .05).Ultrasound produced lower CFU and turbidity after treatment and after re-incubation of 24 hours than sonic or no activation.
- Published
- 2019
21. Gyroscopic Stabilizer for 3D Mapping Device on Unmanned Ground Vehicle
- Author
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J. V. T. Arias, P. J. L. Eguia, N. T. H., C. Z. M. Lacorte, and A. L. P. de Ocampo
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Vibration ,Vibration isolation ,Traverse ,Unmanned ground vehicle ,Computer science ,law ,Acoustics ,Gyroscope ,Accelerometer ,Stabilizer (aeronautics) ,Damper ,law.invention - Abstract
Unmanned vehicle systems used in 3D mapping applications are challenged with camera shake blurring due to mechanical vibrations. In this paper, the use of gyroscopic stabilizer as a mechanical interface of a 3D mapping device to an unmanned ground vehicle is presented. The main objective is to reduce the mechanical vibrations due to uneven terrain and motor operations while 3D mapping. A custom-made UGV without any form of mechanical damper on its wheels is developed. The UGV is allowed to traverse an artificial terrain while the 3D mapping device is mounted atop a vibration isolator. The vibration analysis shows that the acceleration spectral density (ASD) reaches $1.56G_{rms}^2/Hz$ without the stabilizer installed. Upon installation of gyroscopic stabilizer interface between the 3D mapping device and the UGV, the maximum recorded ASD is reduced to about $0.82G_{rms}^2/Hz$.
- Published
- 2018
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22. ADENOMA PLEOMORFO GIGANTE EN GLANDULAS SALIVALES MAYORES. HOSPITAL PARIRENYATWA: ZIMBABWE. 2005 REPORTE DE UN CASO GIANT PLEOMORFIC ADENOMA IN THE MAJOR SALIVARY GLANDS: PARIRENYATWA HOSPITAL. ZIMBABWE, 2005
- Author
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Vladimir Pérez Báez and T Arias Domínguez
- Subjects
Adenoma ,submaxilar ,parótida ,Submaxilar ,Major salivary gland. ,Medicine (General) ,R5-920 ,Public aspects of medicine ,RA1-1270 - Abstract
Se muestra a través de un estudio descriptivo con carácter retrospectivo un caso inusual de Adenoma Pleomorfo en Glándulas Salivares Mayores, operado en el Hospital Parirenyatwa de Zimbabwe en diciembre del 2005.To show an unusual case of Pleomorphic Adenoma in Major Salivary Gland operated in the Parirenyatwa Hospital in December 2005. Patient: It was a 74 year-old case, black man with history of two masses in different side in his neck, from 5 years ago, the size of the tumour of the right side was 19 x 11cm and the left side was 10 x 11cm. The patient doesn’t refer anymore symptoms. The ENT Examination was negative, except for the neck, which was just referred above. The diagnosis was made by biopsy. The histopathology report was MIXED TUMOUR OF the left Parotid and right submandibular glands. The Pleomorphic Adenoma is the most frequent tumour of the salivary glands, but it is not common to find it with these dimensions without transformation into malignancy. This case was a challenge for me as head and neck surgeon, so I decided to present it.
- Published
- 2009
23. Malalcahuello ocaresi gen. & sp. n. (Elateridae, Campyloxeninae)
- Author
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Elizabeth T. Arias-Bohart
- Subjects
Elateroidea ,Malalcahuello ,Insecta ,Arthropoda ,Campyloxeninae ,Forestry ,Coleoptera ,World Wide Web ,Geography ,Elateridae ,lcsh:Zoology ,Animalia ,Animal Science and Zoology ,lcsh:QL1-991 ,Chile ,Ecology, Evolution, Behavior and Systematics ,Research Article ,Campyloxenus - Abstract
Malalcahuello ocaresi gen. n. & sp. n., from Chile, is described and compared with Campyloxenus pyrothorax Fairmaire & Germain, 1860.
- Published
- 2015
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24. Carlota, a new genus of Agrypnini from the Valdivian Forests of Chile (Elateridae, Agrypninae, Agrypnini)
- Author
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Elizabeth T. Arias-Bohart
- Subjects
new species ,Ecology ,new genus ,Biology ,Coleoptera ,Agrypninae ,Elateridae ,Genus ,lcsh:Zoology ,Animalia ,Key (lock) ,Animal Science and Zoology ,Taxonomy (biology) ,lcsh:QL1-991 ,Chile ,Agrypnini ,Ecology, Evolution, Behavior and Systematics ,Research Article - Abstract
Carlota gen. n., with one included species C. coigue sp. n., is described and illustrated from the Valdivian forests of Chile. The relationships of this genus to other Agrypnini from Chile are discussed and generic key for Chilean Agrypninae genera is provided.
- Published
- 2014
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25. Tunon, a new genus of Protelaterini (Elateridae: Lissominae) from southern Chile
- Author
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Elizabeth T. Arias-Bohart
- Subjects
Genus ,Ecology ,Insect Science ,Lissominae ,Biology - Abstract
Tunon gen. nov., a new genus of Protelaterini from southern Chile is here described and illustrated with one species Tunon guinezi sp. nov. Its relationships with other members of the Protelaterini such as the Chilean genera Anaspasis Candeze 1881 and Valdivelater Lawrence & Arias 2009 are discussed.
- Published
- 2013
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26. Effect of rainfall exclusion on ant assemblages in montane rainforests of Ecuador
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Maurice Leponce, T. Arias-Penna, and Thibaut Delsinne
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biology ,Pheidole ,Ecology ,Ecosystem ,Strumigenys ,Rainforest ,Species richness ,Plant litter ,biology.organism_classification ,Water content ,Ecology, Evolution, Behavior and Systematics ,Pachycondyla - Abstract
Models of global climate change generally predict higher rainfall variability, with more intense rainfall events separated by extended dry periods. We experimentally studied the effects of prolonged droughts on diverse ant assemblages found at three elevations in an Ecuadorian montane rainforest. We hypothesized that most species will be negatively affected directly (physiological stress) or indirectly (less food or suitable nesting resources) by drought. We thus expected a decrease in species richness as well as changes in assemblage composition. As the decrease of moisture content was expected to be more marked above ground than in soil, its impact on ants should differ according to their nesting site (dead wood, leaf litter, soil). After 6-month treatments, dead wood, leaf litter and soil samples were on average 53%, 46% and 4% drier under tents than controls, respectively. The drought did not alter overall species richness in the three nesting situations. However, species composition was significantly modified, mostly in dead wood and in leaf litter. Camponotus in dead wood, Strumigenys in leaf litter and Solenopsis in all three microhabitats were more abundant under tents. In contrast, Pheidole in dead wood, and Pachycondyla in leaf litter, were less abundant than in controls. Similar trends were observed at the three study sites. To conclude, after 6-month droughts dominant ant genera in the assemblages were affected differently. In the longer term, alteration of the rainfall regime is therefore expected to have an important impact on ants, as well as on their ecosystem functions and services, through shifts in species dominance and composition.
- Published
- 2013
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27. Non-Invasive Imaging of Lung Remodeling and Right Ventricle Metabolic Shift in an Animal Model of Pulmonary Hypertension
- Author
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José Izquierdo, Jesús Ruiz-Cabello, Jesús Mateo, Samuel España, Jesús Jiménez-Borreguero, and T. Arias
- Subjects
Noninvasive imaging ,medicine.medical_specialty ,Lung ,business.industry ,medicine.disease ,Pulmonary hypertension ,medicine.anatomical_structure ,Animal model ,Text mining ,Ventricle ,Internal medicine ,Internal Medicine ,Cardiology ,Medicine ,Cardiology and Cardiovascular Medicine ,business - Published
- 2016
28. Material tipo de algunas especies de Curculionidae (Insecta: Coleoptera), descritas en la obra historia física y política de Chile, conservado en El Muséum National D'histoire Naturelle, París - Francia
- Author
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Mario Elgueta and Elizabeth T. Arias-Bohart
- Abstract
Se estudia el material tipo de diez especies de Curculionidae descritas por Blanchard (1851) en la obra Historia Física y Política de Chile, en los géneros Malonotus, Geonemides, Strangaliodes, Megalometis y Tapinopsis. Para cada una de esas especies se designa lectotipo y, cuando corresponde, se designan también paralectotipos. Adicionalmente se establece la condición de tipo para los ejemplares de Megalometis xanthomelas Fairmaire y Germain (1861). También se revisan los ejemplares de dos especies relacionadas, redescritas por Blanchard.
- Published
- 2012
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29. Catalogue of Chilean Elateridae
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Elizabeth T. Arias-Bohart and Mario Elgueta
- Subjects
Agrypninae ,Elaterinae ,Semiotinae ,Negastriinae ,Ecology ,Dendrometrinae ,Cardiophorinae ,Biology ,biology.organism_classification ,Ecology, Evolution, Behavior and Systematics ,Physodactylinae ,Cebrioninae - Abstract
A catalogue of Chilean Elateridae is included with 11 subfamilies: Cebrioninae Latreille, Agrypninae Candeze, Lissominae Laporte, Semiotinae Jakobson, Campyloxe- ninae Costa, Pytiobiininae Hyslop, Dendrometrinae Gistel, Negastriinae Nakane and Kishii, Elaterinae Leach, Cardiophorinae Candeze, and Physodactylinae Lacordaire 1857, distributed in 52 genera and 140 species.
- Published
- 2012
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30. Influence of Leaf Litter Moisture on the Efficiency of the Winkler Method for Extracting Ants
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Thibaut Delsinne and T. Arias-Penna
- Subjects
Rain ,Rainforest ,Biology ,Article ,sampling method evaluation ,ants of leaf litter protocol ,Botany ,rainfall exclusion ,Animals ,Winkler test for dissolved oxygen ,Formicidae ,mountain rainforest ,Water content ,Relative species abundance ,Winkler extraction time ,Population Density ,Ecology ,Moisture ,Ants ,Sampling (statistics) ,Biodiversity ,General Medicine ,Plant litter ,Agronomy ,Insect Science ,Ecuador ,Species richness ,rapid biodiversity assessment - Abstract
The Winkler extraction is one of the two fundamental sampling techniques of the standardized "Ants of the Leaf Litter" protocol, which aims to allow qualitative and quantitative comparisons of ant (Hymenoptera: Formicidae) assemblages. To achieve this objective, it is essential that the standard 48-hour extraction provides a reliable picture of the assemblages under study. Here, we tested to what extent the efficiency of the ant extraction is affected by the initial moisture content of the leaf litter sample. In an Ecuadorian mountain rainforest, the leaf litter present under rainfall-excluded and rainfall-allowed plots was collected, its moisture content measured, and its ant fauna extracted with a mini-Winkler apparatus for a 48-hour and a 96-hour period. The efficiency of the Winkler method to extract ant individuals over a 48-hour period decreased with the moisture content of the leaf litter sample. However, doubling the extraction time did not improve the estimations of the ant species richness, composition, and relative abundance. Although the moisture content of the leaf litter slightly affected the ant sampling, our results indicated that a 48-hour Winkler extraction, as recommended by the "Ants of the Leaf Litter" protocol, is sufficient to allow reliable comparisons of ant assemblages.
- Published
- 2012
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31. Why so many apparently rare beetles in Chilean temperate rainforests?
- Author
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Elizabeth T. Arias-Bohart and Barry J. Richardson
- Subjects
0106 biological sciences ,0303 health sciences ,body size and density ,15. Life on land ,010603 evolutionary biology ,01 natural sciences ,03 medical and health sciences ,Geography ,General Agricultural and Biological Sciences ,species abundance curves ,Humanities ,biodiversity estimation ,030304 developmental biology ,General Environmental Science - Abstract
Se calcularon curvas de abundancia de especies a partir de datos obtenidos por medio de nebulizacion de 52 arboles en bosques de Nothofagus (aproximadamente 46000 ejemplares) y 24 arboles en bosques de Araucaria araucana (aproximadamente 15000 ejemplares) en Chile. Los datos obtenidos no se ajustan a los modelos estandares de abundancia de especies, al igual que los datos obtenidos de bosques tropicales, existen muchas especies representadas por ejemplares unicos. La hipotesis de que los mencionados ejemplares unicos son erraticos y que se encuentran normalmente en otros arboles no fue aceptada, contrario a los bosques tropicales, los bosques de Nothofagus no son diversos y generalmente lo conforman una sola especie. El analisis de tres supuestos a partir de los modelos de equilibrio mas parsimoniosos, demostro que dichos modelos son falsos. Entre ellos, las observaciones de muestreo afectadas por sesgo, desequilibrio de la comunidad y la combinacion de datos procedentes de distintos estratos alimenticios con diferentes curvas de abundancia de especies, parecen ser suficientes para poder explicar la divergencia de los datos para las comunidades de coleopteros con alto numero de especies, a partir del supuesto de cualquier modelo de equilibrio. Hasta que estos tres factores se puedan tomar en cuenta y se pueda detectar divergencia residual, no existe necesidad de proponer mecanismos mas complejos para explicar dichos datos. Los valores estimados de alfa y Simson D estan estrechamente correlacionados al tamano de la muestra, lo cual afecta su valor como estimador de la diversidad biologica.
- Published
- 2011
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32. Revision of the elaterid genus Podonema Solier, 1851, from Southern South America (Coleoptera, Elateridae, Pomachiliini)
- Author
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Elizabeth T. Arias-Bohart
- Subjects
Geographic distribution ,Geography ,Genus ,Botany ,Identification key ,Taxonomy (biology) ,Coleoptera ,Elateridae ,Podonema ,South America ,Chile ,Argentina ,revision ,taxonomy ,new species ,identification key - Abstract
The redefinition of the Southern South American genus Podonema Solier, 1851 (type species : Podonema impressum Solier, 1851, by monotypy) is presented with new distributional data. Nine species are included : Podonema impressum Solier 1851, P. aluperam n. sp., P. dalcahue n. sp., P. kopihue n. sp., P. maihue n. sp., P. mawida n. sp., P. obscuratum Golbach, 1979, n. stat., P. palmarense n. sp. and P. wiloi n. sp., Révision du genre Podonema Solier, 1851, d'Amérique du Sud méridionale (Coleoptera, Elateridae, Pomachiliini). Le genre Podonema Solier, 1851, du sud de l'Amérique latine (espèce-type Podonema impressum Solier, 1851, par monotypie) est révisé et de nouvelles données sur sa répartition géographique sont apportées. Neuf espèces sont à présent incluses dans le genre : Podonema impressum Solier, 1851, P. aluperam n. sp., P. dalcahue n. sp., P. kopihue n. sp., P. maihue n. sp., P. mawida n. sp., P. obscuratum Golbach, 1979, n. stat., P. palmarense n. sp. et P. wiloi n. sp., Revisión del género Podonema Solier, 1851, del Sur de America del Sur (Coleoptera, Elateridae, Pomachiliini). Se revisa el género sudamericano Podonema Solier, 1851 (especie tipo Podonema impressum Solier, 1851, por monotipo) y se presenta nueva información que incluye 9 especies : Podonema impressum Solier 1851, P. aluperam n. sp., P. dalcahue n. sp., P. kopihue n. sp., P. maihue n. sp., P. mawida n. sp., P. obscuratum Golbach, 1979, n. stat., P. palmarense n. sp., P. wiloi n. sp., Arias-Bohart Elizabeth T. Revision of the elaterid genus Podonema Solier, 1851, from Southern South America (Coleoptera, Elateridae, Pomachiliini). In: Bulletin de la Société entomologique de France, volume 115 (1),2010. pp. 35-46.
- Published
- 2010
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33. The canopy beetle faunas of Gondwanan element trees in Chilean temperate rain forests
- Author
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Mario Elgueta, Barry J. Richardson, and Elizabeth T. Arias
- Subjects
Nothofagus ,Ecology ,biology ,Fauna ,Nothofagus dombeyi ,Guild ,Nothofagus obliqua ,Rainforest ,Araucaria araucana ,biology.organism_classification ,Araucaria ,Ecology, Evolution, Behavior and Systematics - Abstract
Aim To describe the coleopteran fauna occurring in canopies of temperate Gondwanan tree species in terms of their diversity and guild and taxonomic structures, and to test the proposition that this structuring reflects the Gondwanan origins of this fauna. Location The Andes and the coastal cordillera of temperate Chile. Methods Canopy fogging was used to sample beetles from 29 trees. The samples were statistically described using Schao and the Simpson diversity index D. Cluster analyses and multi-dimensional scaling (MDS) were performed. The taxonomic and guild structures of the Chilean coleopteran fauna were compared quantitatively with those found in other parts of the world using homogeneity chi-square and t-tests. Results A collection of 25,497 beetle specimens was obtained primarily from Nothofagus dombeyi, Nothofagus obliqua and Araucaria araucana. The specimens collected were distributed between 485 morphospecies and included 107 putative, new generic-level taxa and 223 apparently undescribed species. Estimates of the size of the canopy beetle fauna showed that 600+ species were likely to be present. The communities found on a tree species differed markedly between years. MDS plots showed less community divergence between tree species for predators than for phytophages and xylophages. The guild structure was similar to that found on Australian ‘Gondwanan’ trees but differed significantly from the community structures found on ‘Laurasian’ tropical and temperate trees in supporting fewer phytophages and saprophages, but more xylophages. The predator guild showed a different pattern, with tropical faunas differing from those of more temperate regions, irrespective of hemisphere, as did the distribution of superfamilies. Main conclusions The beetle fauna found in the canopies of N. dombeyi, N. obliqua and A. araucana was large (600+ species), with about half of the species undescribed. Schao was found to vary with sample size and to give lower estimates of S than species attenuation curves, raising the possibility that the two methods are estimating the sizes of different statistical communities. It is possible that the attenuation curve is estimating the number of species to be found on a particular tree species, while Schao is estimating the ‘carrying capacity’ for beetle species of individual trees, and this varies from tree to tree. Care also needs to be taken in experimental design when monitoring temporal changes in forest insect communities given the difference in communities found between years in this study. The proportions of phytophages, saprophages and xylophages resemble those of a ‘Gondwanan’ rain forest from Australia and differ significantly from those of tropical and temperate ‘Laurasian’ forests.
- Published
- 2008
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34. On the importance of Gondwanan coleopteran taxa, particularly the Elateridae, and their importance in Chilean biodiversity conservation
- Author
-
Elizabeth T. Arias
- Subjects
Biodiversity conservation ,Geography ,Taxon ,Ecology - Published
- 2016
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35. Resurrection of the Chilean Elaterid Genus Mecothorax Solier, 1851 (Coleoptera: Elateridae: Pomachiliini)
- Author
-
Elizabeth T. Arias
- Subjects
Type species ,Elaterinae ,Subfamily ,Genus ,Insect Science ,Botany ,Biology ,Tribe (biology) - Abstract
The resurrection of the Chilean genus Mecothorax Solier 1851, type species: M. castanipennis Solier 1851 (by original monotypy) with 15 included species is here redescribed, illustrated and mapped: Mecothorax castanipennis Solier 1851, vulgaris (Solier 1851) comb. nov., anticura sp. nov., calafquen sp. nov., carmenjuliae sp. nov., duahatao sp. nov., girardai sp. nov., lanin sp. nov., maipoensis sp. nov., maturanai sp. nov., pichinahuel sp. nov., pucatrihue sp. nov., valdiviensis sp. nov., valparaisensis sp. nov., and villarricensis sp. nov. Mecothorax belongs to the subfamily Elaterinae and tribe Pomachiliini.
- Published
- 2007
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36. Description of Sharon gen. nov. for the Chilean species Asaphes amoenus Philippi, 1861 (Coleoptera: Elateridae)
- Author
-
Mario Elgueta and Elizabeth T. Arias-Bohart
- Subjects
Insecta ,Asaphes ,biology ,Arthropoda ,Ecology ,Holotype ,new genus ,Zoology ,Hemicrepidius ,Biodiversity ,Sharon gen. nov ,biology.organism_classification ,Hymenoptera ,lcsh:QK1-989 ,Coleoptera ,Elateridae ,lcsh:Botany ,lcsh:Zoology ,Animalia ,lcsh:QL1-991 ,Chile ,Ecology, Evolution, Behavior and Systematics ,Taxonomy ,Pteromalidae - Abstract
Sharon gen. nov. is here described to include Asaphes? amoenus Philippi, 1861 comb. nov. from Chile. A redescription of the species is based on the female holotype and material from different geographic locations. Candèze (1891) placed Asaphes amoenus and Parasaphes elegans in the suprageneric group Asaphites. We discuss differences between Sharon gen. nov. and Hemicrepidius Germar, 1839, where Asaphes amoenus was later placed by Blackwelder (1944). Based on morphological characters, Sharon gen. nov. appears to be related to Parasaphes Candèze, 1881, Wynarka Calder, 1986, and Tasmanelater Calder, 1996, all from Australia, suggesting Gondwanan relationships.
- Published
- 2015
37. A New Click Beetle Genus from Chilean Temperate Forests, ALYMA (Coleoptera: Elateridae: Pomachiliini)
- Author
-
Elizabeth T. Arias
- Subjects
Insecta ,food.ingredient ,Click beetle ,Arthropoda ,Ecology ,Biodiversity ,Biology ,biology.organism_classification ,Coleoptera ,Type species ,food ,Elateridae ,Genus ,Insect Science ,Cardiophorus ,Botany ,Animalia ,Temperate rainforest ,Taxonomy - Abstract
Alyma Arias, a new genus of Elateridae from Chile, is here described and illustrated with eight included species: A. pallipes (Solier), new combination, A. ariasvillegasai Arias, new species, A. calafquenensis Arias, new species, A. contulmoensis Arias, new species, A. lawlerae Arias, new species, A. quiriquinaensis Arias, new species, A. rieseorum Arias, new species, and shapiroi Arias, new species. The type species of the genus Alyma is Cardiophorus pallipes Solier, 1851.
- Published
- 2004
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38. Scenedesmus incrassatulus CLHE-Si01: a potential source of renewable lipid for high quality biodiesel production
- Author
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Rosa Olivia Cañizares-Villanueva, Giuseppe Torzillo, Carmen Montes-Horcasitas, Martha T. Arias-Peñaranda, Eliseo Cristiani-Urbina, and Fernando Esparza-García
- Subjects
Biodiesel ,Environmental Engineering ,Cold filter plugging point ,Waste management ,ASTM D6751 ,Renewable Energy, Sustainability and the Environment ,Chemistry ,Fatty Acids ,Bioengineering ,EN 14214 ,Esters ,General Medicine ,Transesterification ,Models, Theoretical ,Lipids ,Biofuel ,Biodiesel production ,Biofuels ,Food science ,Renewable Energy ,Waste Management and Disposal ,Cetane number ,Oils ,Biotechnology ,Scenedesmus - Abstract
The potential of microalgal oil from Scenedesmus incrassatulus as a feedstock for biodiesel production was studied. Cell concentration of S. incrassatulus and lipid content obtained during mixotrophic growth were 1.8 g/L and 19.5 ± 1.5% dry cell weight, respectively. The major components of biodiesel obtained from S. incrassatulus oil were methyl palmitate (26%) and methyl linoleate (49%), which provided a strong indication of high quality biodiesel. Fuel properties were determined by empirical equations and found to be within the limits of biodiesel standard ASTM D6751 and EN 14214. The quality properties of the biodiesel were high cetane number (62), low density (803 kg/m(3)), low viscosity (3.78 mm(2)/s), oxidation stability (9h) and cold filter plugging point (-4°C). Hence, S. incrassatulus has potential as a feedstock for the production of excellent quality biodiesel.
- Published
- 2013
39. Revision of the genus Sofia Arias, 2005, from Southern Chile (Coleoptera, Elateridae, Pomachiliini)
- Author
-
Elizabeth T. Arias-Bohart
- Subjects
Elaterinae ,Geography ,Taxonomy (biology) ,Humanities ,Sofia ,South America ,Chile ,revision ,taxonomy ,new species - Abstract
A revision of the Southern South American genus Sofia Arias, 2005 (type-species : Nemasoma sulcatum Solier, 1851, by monotypy), is presented with new distributional information. Two species are included : Sofia sulcata (Solier, 1851) and S. flordelago n. sp., Révision du genre Sofia Arias, 2005, du Chili méridional (Coleoptera, Elateridae, Pomachiliini). Le genre Sofia Arias, 2005, du sud de l’Amérique latine (espèce-type : Nemasoma sulcatum Solier, 1851, par monotypie), est révisé et de nouvelles données sur sa répartition géographique sont apportées. Deux espèces sont à présent incluses dans le genre : Sofia sulcata (Solier, 1851) and S. flordelago n. sp., Revisión del género Sofia Arias, 2005, del sur de Chile (Coleoptera, Elateridae, Pomachiliini). Se presenta la revisión del género del sur de America del sur, Sofia Arias, 2005 (especie-tipo : Nemasoma sulcatum Solier, 1851, por monotipia), se proporciona su distribución, y dos especies : Sofia sulcata (Solier, 1851) y S. flordelago n. sp., Arias-Bohart Elizabeth T. Revision of the genus Sofia Arias, 2005, from Southern Chile (Coleoptera, Elateridae, Pomachiliini). In: Bulletin de la Société entomologique de France, volume 118 (2),2013. pp. 257-262.
- Published
- 2013
40. A review of the Chilean Egoliini (Coleoptera: Trogossitidae) with description of a new species of Necrobiopsis Crowson
- Author
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Mario Elgueta, Adam Slipinski, John F. Lawrence, and Elizabeth T. Arias
- Subjects
Canopy ,Acalanthis ,Insecta ,Arthropoda ,Ecology ,Biodiversity ,Biology ,Tribe (biology) ,medicine.disease_cause ,biology.organism_classification ,Coleoptera ,Single species ,Trogossitinae ,Genus ,Trogossitidae ,medicine ,Animalia ,Animal Science and Zoology ,Temperate rainforest ,Ecology, Evolution, Behavior and Systematics ,Taxonomy - Abstract
The Chilean members of the little known tribe Egoliini (Trogossitidae, Trogossitinae) are revised, keyed and illustrated. The tribe is represented in Chile by three species of the genus Acalanthis Erichson, and a single species of Necrobiopsis Crowson (N. shangrila sp. n.), a genus known previously from Australia. All Chilean species of Egoliini occur in temperate forests and are often collected by canopy fogging.
- Published
- 2009
- Full Text
- View/download PDF
41. [Identification of individuals with insulin resistance by means of clinical measurements and routine biochemical markers. Construction of an individual risk index]
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L, Díaz González, S, Suárez García, V, López Fernández, A, Alvarez Cosmea, M T, Arias García, and F, Alvarez Menéndez
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Blood Glucose ,Male ,Metabolic Syndrome ,Cholesterol, HDL ,Blood Pressure ,Middle Aged ,Risk Assessment ,Body Mass Index ,Cross-Sectional Studies ,Humans ,Female ,Insulin Resistance ,Biomarkers ,Aged - Abstract
This study aimed to know the markers and routine biochemical measures that are associated to the insulin resistance (IR) and to develop an index of individual IR risk from them.Cross-sectional study made in Primary Health Care population of both genders between 40 and 74 years (n = 2,143). A representative sample was obtained by simple random sampling of 305 patients after excluding the diabetic subjects. Sociodemographic variables, background, examinations, routine analyses as well as fasting insulin levels were obtained. IR was considered if HOMA was higher than 2.9. A step by step logistic regression was done to obtain the best variables to predict IR. A logistic equation, categorical scale and simple additive scale from the beta coefficients was then constructed and was compared with other instruments designed to predict IR.IR prevalence was 25.2%. There were no differences between genders or by age. The four variables that entered the model were fasting plasma glucose, BMI, HDL cholesterol and diastolic blood pressure. The logistic model had good adjustment. The logistic equation was: IR = 1/ 1 + exp (-[-21.011) - [0.119 * fasting plasma glucose] - [0.231 * BMI] - [-0.046 * HDL cholesterol] - [0.048 * diastolic blood pressure]). The scale constructed assesses each subject between -1 and 7 points; cutoff to predict IR was established at 3.5 points, obtaining a sensitivity and specificity similar to the McAuley index and better than the triglycerides/HDL cholesterol ratio, the first model of Stern and the diagnosis of metabolic syndrome according to ATP-III.A very easy-to-use instrument has been obtained to predict IR by means of exploratory measures and routine biochemical measures, which makes it possible to select the patients at the greatest risk in order to intensify preventive actions in them.
- Published
- 2007
42. Tyrannoscelio, a New Genus of Neotropical Scelionidae (Hymenoptera: Platygastroidea) with Description of Two New Species
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Lubomir Masner, Norman F. Johnson, and T. Arias-Penna
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Archeology ,History ,biology ,Ecology ,Espirito santo ,Scelioninae ,Museology ,Platygastroidea ,Zoology ,Hymenoptera ,Biodiversity ,biology.organism_classification ,Type species ,Genus ,Scelionidae ,Taxonomy - Abstract
Tyrannoscelio, new genus is described from the Neotropics type species: T. genieri, new species. The position of the genus within the Scelioninae is unclear, but the presence of a well-developed skaphion suggests a relationship with Psilanteridini, Thoronini, or Parascelionini. Tyrannoscelio is characterized by a strongly produced frontal ledge and enormously elongate mandibles. Two species are described in the genus: T. genieri, new species from Brazil Espirito Santo, and T. crenatus, new species from Colombia Caqueta.
- Published
- 2007
43. A new click beetle genus from the Chilean Central Andes: Bohartina (Coleoptera, Elateridae, Elaterinae)
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Elizabeth T. Arias
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0106 biological sciences ,Male ,Click beetle ,Subfamily ,Male genitalia ,Bohartina vilchesensis ,Biology ,Genitalia, Male ,01 natural sciences ,Article ,Bohartina palmae ,Species Specificity ,Botany ,Animals ,Chile ,Ecology ,010604 marine biology & hydrobiology ,General Medicine ,15. Life on land ,biology.organism_classification ,Coleoptera ,010602 entomology ,Elaterinae ,Insect Science ,Taxonomy (biology) ,Female ,Head - Abstract
Bohartina Arias, a new genus of Elateridae from forests in the Andean Cordillera of Central Chile, is here described and illustrated with 2 species: B. vilchesensis sp. nov. and B. palmae sp. nov. The genus Bohartina belongs to the subfamily Elaterinae and to the tribe Agriotini.
- Published
- 2006
44. Characterization of a new HLA-C allele: Cw*1606
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V, Mas, I, Gimferrer, M T, Arias, V, Fabregat, E, Palou, J, Vives, and F, Lozano
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Base Sequence ,Molecular Sequence Data ,Humans ,HLA-C Antigens ,Alleles - Abstract
HLA-Cw*16 is a relatively common HLA-C specificity among Caucasoids, with Cw*1601 being the most frequent allele. We report herein the identification by sequence-based typing of a new HLA-Cw*16 allele in a Spanish Caucasoid blood donor. The novel allele, designated Cw*1606, differs from Cw*1601 by two nucleotide changes at positions 361 (T to A) and 368 (A to C) in exon 3, which leads to two amino acid changes from Trp (TGG) to Arg (AGG) and from Tyr (TAT) to Ser (TCT) at codons 97 and 99 in the alpha2 domain, respectively. Sequence comparisons suggest that the new HLA-Cw*1606 variant could have arisen from an intralocus gene conversion event.
- Published
- 2003
45. HLA-B*5130, a new HLA-B allele carrying a rare nucleotide substitution in exon 4
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I, Gimferrer, M T, Arias, V, Fabregat, J, Martorell, J, Vives, and F, Lozano
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DNA, Complementary ,Base Sequence ,HLA-B Antigens ,Molecular Sequence Data ,Humans ,Amino Acid Sequence ,Exons ,Sequence Alignment ,Alleles ,White People - Abstract
We report herein the identification of a new HLA-B*51 allele in a Spanish Caucasoid organ donor. The novel allele, designated B*5130, differs from B*51011 by one nucleotide change at position 787 (A to G) in exon 4, leading to an amino acid change from Arg (AGA) to Gly (GGA) at codon 239 in the alpha3 domain. This substitution is present in most classical and nonclassical HLA class I loci (A, C, E, and G) but not in any of the HLA-B alleles reported so far, except for B*7301. Although the frequency of the new variant seems to be low, its existence makes mandatory the analysis of exon 4 before assigning a B*5101 type.
- Published
- 2003
46. Evaluation of vector and direct torque controlled strategies for cage rotor induction motor drives
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I. Ludtke, Liang Yiqiang, M. Jayne, and T. Arias
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Stall torque ,Vector control ,Direct torque control ,Torque motor ,Computer science ,Control theory ,Rotor (electric) ,law ,Torque sensor ,Torque ,Control engineering ,Induction motor ,law.invention - Abstract
This paper investigates field orientated methods of control. Direct and indirect vector control are investigated in both voltage and current controlled forms. Direct torque controlled methods are also investigated and it is found that direct torque control is of less complexity and provides improved control characteristics when compared with vector control methods. A new direct torque controlled strategy is considered in detail and it is shown that the use of a more complex switching table with a mapping algorithm provides improvement.
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- 2002
- Full Text
- View/download PDF
47. Identification of a new HLA-DRB1 allele (DRB1*0318) in three members of a Caucasian Spanish family
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M G, Ercilla, A, Guardia, B, Suárez, M T, Arias, V, Fabregat, M, Costa, I, Salinas, J, Martorell, J, Vives, and F, Lozano
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Spain ,Molecular Sequence Data ,Humans ,HLA-DR Antigens ,Alleles ,White People ,HLA-DRB1 Chains - Abstract
This communication reports the identification of a new allele HLA-DRB1*03 in three members of a Caucasian Spanish family. The new allele has been officially named HLA-DRB1*0318 by the World Health Organization Nomenclature Committee. The exon 2 sequence of this new allele is identical to that of DRB1*03011 except for the first nucleotide of codon 45. The nucleotide change (C replacing G) leads to the amino acid substitution of glycine to arginine (GGG--CGG) at position 45. This position of the beta1 domain shows very little polymorphism among DRB1* alleles (nucleotide changes at this position have only been reported for DRB1*1436 and DRB1*0105) and locates in the vicinity of the highly polymorphic position 47, which is a constituent of the groove's pocket interacting with the amino acid position 7 of the antigen peptide. The familial study showed that the new allele was maternally transmitted into the HLA-A*3002, -B*1801, -Cw*0501, -DRB1*0318, -DRB3*0202, -DQB1*0201 haplotype. Interestingly, the two siblings of the family, which were HLA identical and suffered of insulin-dependent diabetes mellitus (IDDM), were carriers of the two HLA haplotypes (DRB1*03/DQB1*0201 and DRB1*04/DQB1*0302) reported as susceptibility markers to IDDM in Caucasians.
- Published
- 2001
48. LYNNYELLA, UN NUEVO GÉNERO DE ESCARABAJO DEL CENTRO-SUR DE CHILE (COLEOPERA: ELATERIDAE)
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Elizabeth T. Arias
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Pomachiliini ,Lynnyella ,Geography ,Elateridae ,Genus ,Elaterinae ,Deromeus suturalis ,Animal Science and Zoology ,Deromecus suturalis ,Aquatic Science ,Humanities - Abstract
The new genus Lynnyella is here described. The type species for the genus Lynnyella is Deromecus suturalis (Candèze 1865). The new genus Lynnyella belongs to the tribe Pomachiliini and includes: L. suturalis (Candèze 1865) n. comb., L. concepcionensis Arias n. sp., L. diegoi Arias n. sp., L. gerhardtae Arias n. sp., L. juanjoseorum Arias n. sp., L. longaviensis Arias n. sp., and L. valenciai Arias n. sp. The genus Lynnyella is distributed in Central and Southern Chile. The geographic distributions of these species are mapped and a key is provided Se describe Lynnyella, nuevo género de Elateridae para Chile, el cual tiene como especie tipo a Deromecus suturalis Candèze 1865. Este género pertenece a la tribu Pomachiliini, e incluye las siguientes especies: L. suturalis n. comb., L. concepcionensis Arias n. sp., L. diegoi Arias n. sp., L. gerhardtae Arias n. sp., L. juanjoseorum Arias n. sp., L. longaviensis Arias n. sp., y L. valenciai Arias n. sp. Las especies del género Lynnyella se encuentran distribuidas en la zona centro y sur de Chile. Se proporciona un mapa con la distribución geográfica para las especies mencionadas y una clave de éstas
- Published
- 2001
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49. MICROALBUMINURIA AND CARDIOVASCULAR RISK IN HYPERTENSION PATIENTS, IS IT CORRELATED AT LOW LEVELS? ANNUAL EVOLUTION OF THE MAUASTUR STUDY: PP.30.181
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T Arias Garcia, A. Álvarez Cosmea, M.A. Prieto Díaz, E. Hevia Rodríguez, F Fernandez Vega, R Bernardo Alvarez, A De La Escosura Garcia, P Niño Garcia, M. Gorostidi Pérez, and JM Iglesias Sanmartin
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medicine.medical_specialty ,Endocrinology ,Physiology ,business.industry ,Internal medicine ,Internal Medicine ,medicine ,Microalbuminuria ,Cardiology and Cardiovascular Medicine ,business ,medicine.disease - Published
- 2010
- Full Text
- View/download PDF
50. Identification of a novel HLA-Cw*07 variant (Cw*0714) in a German Caucasian family
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F, Lozano, M T, Arias, J M, Vilà, I, Gimferrer, L, Places, A, Hummler, G, Ehninger, J, Martorell, and J, Vives
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Male ,Base Sequence ,Histocompatibility Testing ,Sequence Homology, Nucleic Acid ,Molecular Sequence Data ,Humans ,Point Mutation ,Amino Acid Sequence ,HLA-C Antigens ,Sequence Analysis, DNA ,Alleles ,White People - Abstract
We report herein the identification of a new HLA-Cw*07 allele in two members of a German Caucasian family. This novel allele, designated as Cw*0714, differs from Cw*07011 and Cw*0706 by two nucleotide changes: one at codon 66 (AAC--AAG) in the exon 2, leading to an amino acid change from Asn to Lys; and another silent substitution at codon 99 (TAT--TAC) in the exon 3. The latest substitution (T--C at the third position of codon 99) was not seen in any of the HLA-Cw*07 alleles reported so far, thus being characteristic to the new HLA-Cw*0714 allele.
- Published
- 2000
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