844 resultados para Mezirow, Jack
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Fundao de Amparo Pesquisa do Estado de So Paulo (FAPESP)
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The use of cover crops can produce large amounts of biomass, improving the cycling of nutrients, particularly nitrogen, promoting productivity gains and cost savings. Given this, the objective was to evaluate the use of N rates associated to cover crops grown in pre-harvest nutritional status, nitrogen accumulation and corn yield in both years. The experiment was conducted in an Oxisol with maize, no-tillage system. The experimental design was a randomized block, split plot with four replications. The main treatments were: six cropping systems (sun hemp, jack bean, lablab, millet, and velvet bean fallow) in secondary treatments: four doses of nitrogen (0, 60, 120 and 180 kg ha(-1) N). Corn yield was not affected by the type of coverage for pre-season, regardless of the nitrogen applied in the soil. Still, the use of nitrogen fertilizer in the soil promotes gains in grain yield in the first year of cultivation, regardless of the type of coverage in pre-season. In the first year (2006/2007) the species of coverage produced more biomass were velvet bean, jack bean, sun hemp and lablab, while in the second year (2007/08) were the sun hemp, millet, lablab, jack bean and velvet bean, respectively.
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Conselho Nacional de Desenvolvimento Cientfico e Tecnolgico (CNPq)
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Ps-graduao em Agronomia (Cincia do Solo) - FCAV
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Disposio construtiva aplicada em cadeira antropomtrica. Patente de modelo de utilidade para uma cadeira antropomtrica constituda de uma estrutura (1) que sustenta uma pluralidade de instrumentos de medio, sendo que a parte posterior da cadeira provida de dois instrumentos de medio compostos por duas hastes, sendo uma delas para medida da altura tronco-enceflica (2) e a outra para a medida do assento at a regio renal (4), de modo que cada uma dessas hastes possui uma escala numrica, sendo ora interna (3), ora externa (5). O assento (6) da cadeira (1) composto por um anteparo com uma canaleta interna e dois cursores laterais deslizantes para a direita e para a esquerda, que possuem escala numrica.; O assento provido de referncias mtricas sendo uma no sentido da largura do assento (8) e outra no sentido da profundidade do assento (9), sendo a escala (8) dividida em duas escalas, onde o ponto zero exatamente o meio do assento. O assento (6) tambm possui acoplada uma haste frontal, com deslizamento no sentido antero-posterior (10), a qual contm uma escala interna embutida na pea, de modo que a soma entre a medida da profundidade do assento com a medida obtida pela haste deslizante horizontal (10) totalizam a medida sacro-popltea. Para a tomada da medida da altura popltea, h uma outra haste (11), integrada superfcie anterior da cadeira, cujo deslizamento vertical, sendo que essa haste (11) possui uma escala numrica interna uma externa (12).; A base da cadeira (13) possui um dispositivo de acionamento lateral com o p (16), que conectado ao assento (6) por meio de um macaco hidrulico, permitindo a elevao do assento, sendo que a outra alavanca (17), ao ser girada, realiza a descida do assento (6).
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Ps-graduao em Estudos Literrios - FCLAR
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Coordenao de Aperfeioamento de Pessoal de Nvel Superior (CAPES)
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Fundao de Amparo Pesquisa do Estado de So Paulo (FAPESP)
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Fundao de Amparo Pesquisa do Estado de So Paulo (FAPESP)
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Coordenao de Aperfeioamento de Pessoal de Nvel Superior (CAPES)
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Ps-graduao em Agronomia (Cincia do Solo) - FCAV
Formas de N-orgnico em latossolo em funo de nitrognio e de plantas de cobertura em pr-safra do milho
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Ps-graduao em Agronomia (Produo Vegetal) - FCAV
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A survey of 41 mule deer (Odocolleus hemionus) and three white-tailed deer (O. virginianus) for bovine tuberculosis was conducted on a Montana (USA) cattle ranch from 2 November 1993 through January 1994. Gross and microscopic lesions typical of tuberculosis were present in tonsil and lymph nodes of the head, thorax, and abdomen of one adult female mule deer. Additionally, a single microgranuloma considered morphologically suggestive of tuberculosis was present in one lymph node of the head of a second mule deer. Mycobacterial isolates from lymph nodes of the head and thorax of the first deer were identified as Mycobacterium bovis.
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Using the isolation of Mycobacterium bovis as the reference standard, this study evaluated the sensitivity, specificity and kappa statistic of gross pathology (abattoir postmortem inspection), histopathology, and parallel or series combinations of the two for the diagnosis of tuberculosis in 430 elk and red deer. Two histopathology interpretations were evaluated: histopathology I, where the presence of lesions compatible with tuberculosis was considered positive, and histopathology II, where lesions compatible with tuberculosis or a select group of additional possible diagnoses were considered positive. In the 73 animals from which M. bovis was isolated, gross lesions of tuberculosis were most often in the lung (48), the retropharyngeal lymph nodes (36), the mesenteric lymph nodes (35), and the mediastinal lymph nodes (16). Other mycobacterial isolates included: 11 M. paratuberculosis, 11 M. avium, and 28 rapidly growing species or M. terrae complex. The sensitivity estimates of gross pathology and histopathology I were 93% (95% confidence limits [CL] 84,97%) and 88% [CL 77,94%], respectively, and the specificity of both was 89% [CL 85,92%]). The sensitivity and specificity of histopathology II were 89% (CL 79,95%) and 77% (CL 72,81%), respectively. The highest sensitivity estimates (93- 95% [CL 84,98%]) were obtained by interpreting gross pathology and histopathology in parallel (where an animal had to be positive on at least one of the two, to be classified as combination positive). The highest specificity estimates (94-95% [CL 91-97%]) were generated when the two tests were interpreted in series (an animal had to be positive on both tests to be classified as combination positive). The presence of gross or microscopic lesions showed moderate to good agreement with the isolation of M. bovis (Kappa = 65-69%). The results show that post-mortem inspection, histopathology and culture do not necessarily recognize the same infected animals and that the spectra of animals identified by the tests overlaps.
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We monitored the haul-out behavior of 68 radio-tagged harbor seals (Phoca vitulina) during the molt season at two Alaskan haul-out sites (Grand Island, August-September 1994; Nanvak Bay, August-September 2000). For each site, we created a statistical model of the proportion of seals hauled out as a function of date, time of day, tide, and weather covariates. Using these models, we identified the conditions that would result in the greatest proportion of seals hauled out. Although those ideal conditions differed between sites, the proportion of seals predicted to be hauled out under those conditions was very similar (81.3% for Grand Island and 85.7% for Nanvak Bay). The similar estimates for both sites suggest that haul-out proportions under locally ideal conditions may be constant between years and geographic regions, at least during the molt season.