1000 resultados para Purinas - Estrutura


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Pós-graduação em Biotecnologia - IQ

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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The aim of this study was to evaluate the effects of residual leaf area index (rLAI), years of evaluation and grazing cycles on the accumulation and disappearance of forage, and changes in the pasture structure of xaraes palisadegrass submitted to grazing intensities and intermittent stocking in two summers. The experiment was carried out at the Faculdade de Ciencias Agrarias e Veterinaria of Unesp, Campus of Jaboticabal, SP and the intensities of grazing were defined by four rLAI: 0.8, 1.3, 1.8 and 2.3. When the canopy intercepted 95% of incident light, the animals were placed on the pasture for grazing and kept until the rLAI target has been reached. Pastures were grazed by non-lactating Holstein cows (Bos Taurus Taurus L.), using the technique of mob-stocking. It was evaluated the canopy height, accumulation, disappearance and morphological components of forage and rest period. Residual leaf area index from 1.3 to 1.8 are the best in the accumulation and disappearance of forage and pasture structure. It is observed variability of the accumulation and disappearance of forage and pasture structure for years of assessment and grazing cycles within each year.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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The indexing is a kind of description whose aim is to establish concepts expressed in a document and representing them according to a documentary language. There are elements that can contribute to a more complete selection of terms that will represent the document, like the observation of its textual structure and the context where the indexing professional acts. The analysis of the book textual structure can be carried out in a way that facilitates the indexing, as the professional can foresee the parts of the text where he localizes and identifies the more representative terms of the textual content. In such a way, it is intended to comprehend and inquire, with the applying of Verbal Protocol, the use that São Paulo libraries indexers do from the textual structure during the determination of subjects in such a way as to obtain the disclosure of their procedures, difficulties and restrictions through the externalization of thoughts during the recording of the indexing task. From the data analysis, it was possible to find out that the right hand page, the back of the title page, the chapters and other parts of the book s structure provided the greater number of terms, becoming the most important ones for the indexing task.

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The theoretical aspects of the narrative structure of documents are discussed, using the Generative Trajectory of Meaning theory. In particular, the difficulties in identifying the subject of the documents (aboutness) are addressed from the linguistic and discursive semantics of Propp, Greimas Saussure, to show how these theories can improve the information representation processes.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)