982 resultados para Resistência a antimicrobianos


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Compreendendo uma mistura preparada a partir de materiais "fritados" (fundidos) e matérias primas cruas, em proporções variadas de diferentes componentes, a fim de obter esmaltes com elevada resistência à abrasão.

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Loucura, saúde mental e reforma psiquiátrica são os temas centrais em questão neste livro, escrito em formato de ensaio-fílmico e dividido em três partes principais - pré-produção, produção e pós-produção, etapas da realização cinematográfica. O ensaio-fílmico é formado pela montagem de cenas obtidas a partir de algumas sessões de cinema e de produções de usuários de saúde mental do Centro de Atenção Psicossocial (Caps I) do município paulista de Santa Gertrudes. Mas diferentemente do cinema tradicional, no qual enredos, personagens e narrativas são lineares e previstos, no ensaio-fílmico proposto pelo autor esses elementos foram se concretizando ao longo do processo de pesquisa, de acordo com os acontecimentos que se sucediam nos encontros do pesquisador com os usuários e a coordenação do serviço do Caps. Os miniensaios que formam os chamados planos-fragmentos são constituídos por reflexões do autor acerca de conceitos relacionados a controle, loucura e saúde mental. Aqui, a discussão tem como suporte ideias de pensadores, como os franceses Felix Guattari, Giles Deleuze e Michel Foucault, assim como músicas, imagens e trechos de filmes em uma perspectiva de transversalidade e subversão à lógica de compartimentalização dos saberes e fazeres cinematográfico e do meio científico

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This study was carried out to evaluate the breed resistance against ectoparasites infestations in Crioula Lageana and crossbred Angus male calves under natural condition. Ten weaned and neutered male calves (6-8 months) of each group were kept together in winter and summer pastures in Monte Castelo, Santa Catarina State. Every 28 days, female ticks (Rhipicephalus (Boophilus) microplus) more than 4 mm long were counted on the right and left side of the body of each animal, as well as the D. hominis nodules. Coat thickness also was measured at each sampling and all animals were classified according coat color. Crioula Lageana group was less infested by D. hominis than crossbred Angus in five times and by ticks in the infestation peak (P<0.05). There were no differences in the distribution of the ticks and grubs between animal body sides. Dark-haired animal in both groups were the most susceptible.

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Pesquisou-se a ocorrência de Escherichia coli (EPEC, EIEC, O157) em água e peixe (pele, trato digestivo e músculo) de pesque-pagues da microbacia do Córrego Rico, Jaboticabal (SP). Foram isoladas 115 cepas de E. coli, entre as quais 49 (43%) foram sorogrupadas como EPEC. Os sorogrupos mais frequentes foram O125, O126 e O158. Dentre as amostras testadas, 60 (52%) apresentaram resistência simultânea a dois antimicrobianos. A análise de correspondência foi realizada com o intuito de verificar as possíveis correspondências envolvendo o local de isolamento, sorogrupos e multirresistência e, com isso, pôde-se observar que o músculo apresentou menor correspondência com os demais fatores analisados. Porém, o isolamento de sorogrupos EPEC neste estudo representa risco à saúde dos consumidores.

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Calacarus heveaeFeres (Eriophyidae) and Tenuipalpus heveae Baker (Tenuipalpidae) can cause heavy defoliation of rubber tree plants. From the perspective of integrated pest management, resistant clones can be an important strategy. The objective of this work was to evaluate the resistance of rubber tree clones to the attack of mites, in an experiment carried out in Votuporanga, SP. The experimental design was a randomized blocks with eighteen treatments and three replications. The treatments were the clones PB 230, PB 243, PB 252, PB 294, PB 306, PB 311, PB 312, PB 314, PB 324, PB 346, PB 350, PB 355, IAC 56, IAC 302, IAC 328, IAC 334, Fx 3899 and RRIM 600. The evaluation of C. heveae and T. heveae populations was performed by counting mites and exuviae presence in six leaflets per plot. The defoliation levels were evaluated with a score scale, varying from 0 (no defoliation) to 4 (above 75% of defoliation). Based on the results, Fx 3899 clone is resistant through non-preference and/or antibiosis to C. heveae. The IAC 56 clone is less susceptible to defoliation caused by C. heveae and T. heveae infestation.

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The sugarcane crop plays an important role on Brazilian economy,, especially in the aspect related to alternative energy sources. Yield of ratoon cane (2nd cycle) was evaluated in relation to resistance to penetration, gravimetric moisture and organic matter in a Typic Tropustalf, in the municipality of Suzanápolis (SP), 20º28'10'' S and 50º49'20'' W, in the Brazilian cerrado, in 2009. The main purpose was to select, among the attributes surveyed, the one with the highest linear and spatial correlations that explains the variability of sugar cane yield. A geostatistical grid was installed in order to collect data from the soil as well from the plant, with 120 sampling points in an area of 14.53 ha. Organic matter correlated linearly and negatively with penetration resistance, indicating that the soil management practices that aim its increase in the soil profile can improve soil physical conditions, and consequently, the development and yield of sugarcane. Both gravimetric moisture (UG) and content of soil organic matter (OM) correlated directly, linearly (UG2 and MO1) and spatially (UG1 and MO1) with sugarcane yield, proving to be the best attributes, among the evaluated ones, to estimate and increase the sugarcane yield.

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Five commercial rubber tree clones in a clonal nursery were assessed for resistance to powdery mildew, as well as for the disease fluctuation and its correlation with the climate conditions in the study period. For this assessment, a diagrammatic scale was developed from 150 central leaflets randomly collected at different ages and attack levels. Validation of scale was done by five assessors. Results indicated that all clones showed susceptibility to the pathogen, and the attack was higher for younger leaflets. According to the climate data, mild temperatures and relative humidity below 60% favored the epidemic.

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Pós-graduação em Agronomia (Entomologia Agrícola) - FCAV

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Pós-graduação em Agronomia (Entomologia Agrícola) - FCAV

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Pós-graduação em Agronomia (Genética e Melhoramento de Plantas) - FCAV

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Pós-graduação em Medicina Veterinária - FMVZ