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Search Results: 1 - 10 of 6453 matches for " Jaime Ortego "
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Nieto Nafría, J.M. & C. Favret. 2011. Registers of family-group and genus-group taxa of Aphidoidea / Registros de los taxones del nivel familia y del nivel género de Aphidoidea (Hemiptera, Sternorrhyncha). Universidad de León. León (Espa a) 465 pp. ISBN 978-84-9773-573-5
Jaime Ortego
Revista de la Sociedad Entomol?3gica Argentina , 2011,
Abstract:
Primera cita de Essigella californica (Essig, 1909)(Hemiptera: Aphididae) en Argentina
Ortego,Jaime; Mier Durante,M. Pilar;
Revista de la Facultad de Ciencias Agrarias. Universidad Nacional de Cuyo , 2012,
Abstract: aphids were sampled on several pinus species in some localities of argentina. essigella californica was caught for the first time in argentina, in five provinces. aspects of its biology and distribution are presented. biological and morphologic aspects that allow to separate three genera of the tribe eulachnini (subfamily lachninae) present now in argentina: cinara, eulachnus and essigella) are provided.
Acyrthosiphon (A.) loti (Hemiptera: Aphididae) hallado sobre alfalfa en la Argentina
Ortego,Jaime; Mier Durante,Milagros P.;
Revista de la Sociedad Entomol?3gica Argentina , 2003,
Abstract: acyrthosiphon ( a. ) loti (theobald) (aphididae) has been found for the first time in argentina and south america, on cultivate lucerne ( medicago sativa l.) (fabaceae). this is the seventh aphid species recorded in argentina on lucerne. the peculiar characteristics of studied specimens are given. modifications to a previous identification key are presented.
Acyrthosiphon (A.) loti (Hemiptera: Aphididae) hallado sobre alfalfa en la Argentina Acyrthosiphon (A.) loti (Hemiptera: Aphididae) founded on Lucerne in Argentina
Jaime Ortego,Milagros P. Mier Durante
Revista de la Sociedad Entomol?3gica Argentina , 2003,
Abstract: Se informa del hallazgo por primera vez en la Argentina y en América del Sur de Acyrthosiphon ( A. ) loti (Theobald) (Aphididae), una especie de pulgón que puede colonizar fabáceas cultivadas, entre ellas la alfalfa ( Medicago sativa L.) Se comentan las peculiaridades de los ejemplares estudiados y se modifica una clave existente para separar las siete especies de pulgones halladas sobre esta especie de leguminosa en la Argentina. Acyrthosiphon ( A. ) loti (Theobald) (Aphididae) has been found for the first time in Argentina and South America, on cultivate lucerne ( Medicago sativa L.) (Fabaceae). This is the seventh aphid species recorded in Argentina on lucerne. The peculiar characteristics of studied specimens are given. Modifications to a previous identification key are presented.
Reciente introducción a la Argentina de Chaitophorus leucomelas (Hemiptera: Aphididae - Salicaceae) que afecta a los álamos
Jaime Ortego,O. Astorga,M. Sevilla
Multequina , 1999,
Abstract: Se informa por primera vez la presencia de Chaitophorus leucomelas Koch, 1854 en la Argentina, hallado sobre álamos en la provincia de Mendoza.
Nuevos registros y actualización de la lista faunística de los pulgones (Hemiptera: Aphididae) de la Argentina
Ortego,Jaime; Difabio,María E.; Mier Durante,M. Pilar;
Revista de la Sociedad Entomol?3gica Argentina , 2004,
Abstract: the aphid species hyalopteroides humilis (walker), melanaphis donacis (passerini), illinoia azaleae (mason), myzus hemerocallis takahashi and rhopalosiphoninus staphylleae (koch) are been recorded for first time from argentina. the first two of them are also new record from south america. the actualized argentinean aphid check-list is presented, and comments about several species are given. capitophorus hippophaes (walker), m. donacis and takecallis arundinariae (essig) are recorded for first time from chile.
Nuevos registros y actualización de la lista faunística de los pulgones (Hemiptera: Aphididae) de la Argentina New records and actualized check list of aphids (Hemiptera: Aphididae) from Argentina
Jaime Ortego,María E. Difabio,M. Pilar Mier Durante
Revista de la Sociedad Entomol?3gica Argentina , 2004,
Abstract: Se citan por primera vez para la Argentina cinco especies de pulgones: Hyalopteroides humilis (Walker), Melanaphis donacis (Passerini), Illinoia azaleae (Mason), Myzus hemerocallis Takahashi y Rhopalosiphoninus staphylleae (Koch). Las dos primeras son también nuevas para América del Sur. Se presenta una lista actualizada de áfidos, con comentarios sobre varias especies. Se citan por primera vez para Chile tres especies: Capitophorus hippophaes (Walker), M. donacis y Takecallis arundinariae (Essig). The aphid species Hyalopteroides humilis (Walker), Melanaphis donacis (Passerini), Illinoia azaleae (Mason), Myzus hemerocallis Takahashi and Rhopalosiphoninus staphylleae (Koch) are been recorded for first time from Argentina. The first two of them are also new record from South America. The actualized Argentinean aphid check-list is presented, and comments about several species are given. Capitophorus hippophaes (Walker), M. donacis and Takecallis arundinariae (Essig) are recorded for first time from Chile.
The hard but necessary task of gathering order-one effect size indices in meta-analysis
Carmen Ortego,Juan Botella
Psicológica , 2010,
Abstract: El meta-análisis de estudios primarios con dise o de dos grupos y medidas en dos momentos debe emplear índices de tama o de efecto de orden uno. Especialmente si la asignación no es aleatoria, con dise os de grupo control no equivalente, las conclusiones alcanzadas pueden estar fuertemente sesgadas si sólo se incluyen las medidas post tratamiento. 109 estudios primarios incluidos en 4 meta-análisis fueron recopilados y se contactó con sus autores para pedirles los datos originales con fin de estimar los índices de orden uno. De este total sólo se consiguió 13 estudios primarios. Los resultados obtenidos con los datos originales fueron comparados con los estimados con los índices de orden cero y uno. A pesar de las dificultades para conseguir los datos, el peque o grupo de datos analizados mostró que si el meta-análisis se realizaba con índices de orden cero las conclusiones eran erróneas.
Altered AKT1 and MAPK1 Gene Expression on Peripheral Blood Mononuclear Cells and Correlation with T-Helper-Transcription Factors in Systemic Lupus Erythematosus Patients
Sonia Garcia-Rodriguez,Jose-Luis Callejas-Rubio,Norberto Ortego-Centeno,Esther Zumaquero,Raquel Ríos-Fernandez,Salvador Arias-Santiago,Pilar Navarro,Jaime Sancho,Mercedes Zubiaur
Mediators of Inflammation , 2012, DOI: 10.1155/2012/495934
Abstract: Kinases have been implicated in the immunopathological mechanisms of Systemic Lupus Erythematosus (SLE). v-akt murine-thymoma viral-oncogene-homolog 1 (AKT1) and mitogen-activated-protein-kinase 1 (MAPK1) gene expressions in peripheral mononuclear cells from thirteen SLE patients with inactive or mild disease were evaluated using quantitative real-time reverse-transcription polymerase-chain-reaction and analyzed whether there was any correlation with T-helper (Th) transcription factors (TF) gene expression, cytokines, and S100A8/S100A9-(Calprotectin). Age- and gender-matched thirteen healthy controls were examined. AKT1 and MAPK1 expressions were upregulated in SLE patients and correlated with Th17-(Retinoic acid-related orphan receptor (ROR)-C), T-regulatory-(Treg)-(Transforming Growth Factor Beta (TGFB)-2), and Th2-(interleukin (IL)-5)-related genes. MAPK1 expression correlated with Th1-(IL-12A, T-box TF-(T-bet)), Th2-(GATA binding protein-(GATA)-3), and IL-10 expressions. IL-10 expression was increased and correlated with plasma Tumor Necrosis Factor (TNF)-α and Th0-(IL-2), Th1-(IL-12A, T-bet), GATA3, Treg-(Forkhead/winged-helix transcription factor- (FOXP)-3), and IL-6 expressions. FOXP3 expression, FOXP3/RORC, and FOXP3/GATA3 expression ratios were increased. Plasma IL-1β, IL-12(p70), Interferon-(IFN)-γ, and IL-6 cytokines were augmented. Plasma IL-1β, IL-6, IL-2, IFN-γ, TNF-α, IL-10, and IL-13 correlated with C-reactive protein, respectively. Increased Calprotectin correlated with neutrophils. Conclusion, SLE patients presented a systemic immunoinflammatory activity, augmented AKT1 and MAPK1 expressions, proinflammatory cytokines, and Calprotectin, together with increased expression of Treg-related genes, suggesting a regulatory feedback opposing the inflammatory activity. 1. Introduction Systemic Lupus Erythematosus (SLE) is a chronic inflammatory autoimmune disease most common in women of reproductive age [1], characterized by a relapsing/remitting course and the involvement of multiple organs, including skin, kidneys, and central nervous system. Pathophysiologically is characterized by the dysfunction of T, B, and dendritic cells (DC), skewed cytokine production, breakdown of immunological tolerance, and by the production of antinuclear autoantibodies [2–5]. In SLE bone marrow mononuclear cells, Nakou et al. [6] identified central gene regulators implicated in disease pathogenesis which include activation of multiple kinase pathways (MAPK/extracellular regulated MAP kinase (ERK), Signal Transducer and Activator of Transcription (STAT), AKT, and
Wave-height hazard analysis in Eastern Coast of Spain - Bayesian approach using generalized Pareto distribution
J. J. Egozcue, V. Pawlowsky-Glahn,M. I. Ortego
Advances in Geosciences (ADGEO) , 2005,
Abstract: Standard practice of wave-height hazard analysis often pays little attention to the uncertainty of assessed return periods and occurrence probabilities. This fact favors the opinion that, when large events happen, the hazard assessment should change accordingly. However, uncertainty of the hazard estimates is normally able to hide the effect of those large events. This is illustrated using data from the Mediterranean coast of Spain, where the last years have been extremely disastrous. Thus, it is possible to compare the hazard assessment based on data previous to those years with the analysis including them. With our approach, no significant change is detected when the statistical uncertainty is taken into account. The hazard analysis is carried out with a standard model. Time-occurrence of events is assumed Poisson distributed. The wave-height of each event is modelled as a random variable which upper tail follows a Generalized Pareto Distribution (GPD). Moreover, wave-heights are assumed independent from event to event and also independent of their occurrence in time. A threshold for excesses is assessed empirically. The other three parameters (Poisson rate, shape and scale parameters of GPD) are jointly estimated using Bayes' theorem. Prior distribution accounts for physical features of ocean waves in the Mediterranean sea and experience with these phenomena. Posterior distribution of the parameters allows to obtain posterior distributions of other derived parameters like occurrence probabilities and return periods. Predictives are also available. Computations are carried out using the program BGPE v2.0.
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