15 research outputs found

    Climatological Atlas of the Iberian Peninsula

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    Póster presentado en: 2ª Jornadas Técnicas de Sistemas de Informação Geográfica celebradas en Tomar, Portugal, el 28 y 29 de mayo de 2011

    Fluxo gênico recíproco entre cultivares de soja convencional e geneticamente modificada

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    O objetivo deste trabalho foi determinar o fluxo gênico recíproco entre duas cultivares de soja, uma tolerante e outra sensível ao glifosato, além de aplicar estimadores para determinar a taxa de fecundação cruzada na população e o número de sementes híbridas na progênie. O experimento compôs-se de quatro blocos com 40 fileiras de soja, com 20 fileiras de cada cultivar (CD217 e CD219RR). No estádio R8, cinco fileiras, distantes 0,5, 1, 2, 4 e 8 m da cultivar adjacente, foram colhidas, trilhadas e analisadas quanto à ocorrência de fluxo gênico. Como características marcadoras, foram utilizadas as cores da flor, hipocótilo e pubescência, e a tolerância ao glifosato. As cultivares contrastam quanto às características analisadas, cada uma condicionada por um gene com dois alelos, em interação de dominância completa. Na progênie da cultivar tolerante, a maior taxa de híbridos encontrada foi 0,27% e, na progênie da cultivar sensível, identificou-se 0,83%; pela hipótese do efeito diluição, as taxas de hibridação natural populacional seriam 0,104 e0,388%, respectivamente. O fluxo gênico recíproco entre as cultivares CD217 e CD219RR não é o mesmo em ambas as direções. Os estimadores propostos são úteis para determinar a taxa de híbridos em amostras de sementes

    Genetic parameters and path analysis of traits of upland cotton for the brazilian semi-arid region

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    Upland cotton fiber is one of the most used natural fibers in the production of textile materials worldwide. For this reason, the selection of genotypes that meet the industry’s requirements is one of the main goals of cotton breeding programs. This study aimed to estimate the phenotypic and genotypic correlations among fiber traits and identify the direct and indirect effects of these traits on seed cotton yield of upland cotton genotypes in the semi-arid Brazilian Northeast. This study assessed 21 upland cotton genotypes from a complete diallel cross without reciprocals. The design was randomized blocks, with three replications and 21 treatments. The experiment was conducted in the municipality of Patos - PB, in 2015. The statistical analysis consisted of analysis of variance by the F test, phenotypic and genotypic correlation analysis, and path analysis. The studied materials revealed genetic variability for all traits. Path analysis has shown that the traits fiber elongation, fiber strength, and fiber fineness have a direct positive effect on seed cotton yield

    Southern anchorage system

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    Photograph of the southern anchorage system for the Sydney Harbour Bridge. Dated 21/5/3

    Colecistite Aguda Alitiásica por Salmonella enteritidis: Date of submission: 01-12-2016 | Date of acceptance: 20-08-2017 | Published: 22-01-2018

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    A colecistite aguda alitiásica define-se como a inflamação aguda da vesícula biliar na ausência de cálculos. Em pediatria representa a principal patologia aguda da vesícula biliar. Anteriormente associada a casos de mau prognóstico e de doença sistémica grave, são cada vez mais os casos de colecistite aguda alitiásica em crianças previamente saudáveis, com patologia infeciosa. A associação com Salmonella enteritidis é pouco frequente. Apresenta-se o caso clínico de um rapaz de 7 anos internado por desidratação no contexto de gastroenterite por Salmonella enteritidis, complicada por colecistite aguda alitiásica. Evoluiu bem após antibioterapia endovenosa, sem necessidade de intervenção cirúrgica. O tropismo da Salmonella pela vesícula biliar é um assunto pouco esclarecido, pelo que é revista resumidamente a literatura mais recente

    Incidence, predictive factors and clinical significance of development of portal vein thrombosis in cirrhosis: a prospective study

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    © 2019 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.Background and aims: The role of portal vein thrombosis (PVT) in the natural history of cirrhosis is controversial. There are few prospective studies validating risk factors for development of PVT. We analysed the incidence, factors associated with PVT development and its influence on cirrhosis decompensations and orthotopic liver transplant (OLT)-free survival. Methods: In this prospective observational study between January 2014 and March 2019, 445 consecutive patients with chronic liver disease were screened and finally 241 with cirrhosis included. Factors associated with PVT development and its influence on cirrhosis decompensations and OLT-free survival by time dependent covariate coding were analysed. Results: Majority of patients belonged to Child-Pugh class A 184 (76.3%) and the average MELD score was 10 ± 5. Previous cirrhosis decompensations occurred in 125 (52.1%), 63 (26.1%) were on NSBB and 59 (27.2%) had undergone banding for bleeding prophylaxis. Median follow-up was 29 (1-58) months. Cumulative incidence of PVT was 3.7% and 7.6% at 1 and 3 years. Previous decompensation of cirrhosis and low platelet counts but not NSBB independently predicted the development of PVT. During follow-up, 82/236 (34.7%) patients developed cirrhosis decompensations. OLT-free survival was 100% and 82.8% at 3 years, with and without PVT respectively. MELD score, but not PVT, independently predicted cirrhosis decompensations (HR 1.14; 95%CI:1.09-1.19) and OLT-free survival (HR 1.16;95%CI:1.11-1.21). Conclusion: Previous decompensations of cirrhosis and thrombocytopenia predict PVT development in cirrhosis suggesting a pathophysiologic role for severity of portal hypertension. PVT development did not independently predict cirrhosis decompensations or lower OLT-free survival.info:eu-repo/semantics/publishedVersio
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