Substracts
Mostrando 1-12 de 18 artigos, teses e dissertações.
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1. Otimização do manejo da pinta preta causada por Guignardia citricarpa Kiely na produção ecológica de tangerinas cv. Montenegrina sob a ótica da pesquisa participativa / Optimization of management techniques of black spot (Guignardia citricarpa Kiely.) in ecological orchards of tangerine trees cv. montenegrinafrom the perspective of participatory research
In the state of Rio Grande do Sul many citric species are grown, the town of Montenegro, in Vale do Caí/RS stands out among the most important producers. For the production of fruits for in natura consumption most of the local farmers adopt technological packages that consist in the use of chemical inputs and in environmetal simplification. However, experim
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2011
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2. Macrolactamas derivadas de carboidratos: síntese e análise conformacional por métodos quanto-mecânicos
In the first chapter of this work, the synthesis of two macrolactams with 11 and 15 members derived from D-galactose is described from the tri-n-butyltin hydride mediated radical cyclization of 2-iodobenzamides and two 3-(iodoacetamido)benzamides. Two macrolactams, resulting from 11- and 15-endo mode ciclization, were isolated, plus the uncyclized reduction
Publicado em: 2009
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3. Parameter estimation applied to enzymatic elimination models of liver substracts: a study via global optimization / Estimação de parâmetros em modelos para eliminação enzimática de substratos no fígado: um estudo via otimização global
Neste trabalho, abordamos um problema de otimização de parâmetros da biofísica em que o objetivo é a obtenção da taxa média de concentração de substrato no fígado. Este problema é altamente não-linear, multimodal e com função-objetivo não-diferenciável. Resolvemos o mesmo através de métodos de otimização da literatura e introduzimos trê
Publicado em: 2009
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4. Mutation screening in the VHL, SDHB and SDHD genes in patients with sporadic pheochromocytoma and/or paraganglioma / Rastreamento de mutações nos genes VHL, SDHB e SDHD em pacientes portadores de feocromocitoma ou também, paraganglioma esporádico
Pheochromocytomas are neuroendocrine tumors composed of chromaffin cells that produce and secrete catecholamines as well as a variety of neuropeptides, whose most common clinical manifestation is arterial hypertension. Twelve to 24% of the apparently sporadic pheochromocytomas, present germline mutations in genes previously associated to inherited familiar s
Publicado em: 2007
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5. Avaliação do processo de compostagem de resíduos sólidos urbanos
A crescente produção de resíduos sólidos urbanos e a escassez de áreas para uma destinação final tecnicamente adequada, via implantação de aterros sanitários, faz com que tome importância a técnica de tratamento de resíduos sólidos orgânicos através das compostagem/vermicompostagem. Nesta pesquisa, foi realizada a avaliação destes processos
Publicado em: 2007
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6. CONTRIBUTION FOR THE FORESTATION OF THE Luehea divaricata Martius et Zuccarini (whip tree) / CONTRIBUIÇÃO PARA A SILVICULTURA DE Luehea divaricata Martius et Zuccarini (Açoita-cavalo)
The goal of this paper is to evaluate the growth of the seedlings, in different sizes and recipients, with different types of substracts. The experiment was established and conducted on the premises of the Forestry Science Silviculture Laboratory of the Federal University in Santa Maria, located in the Central Depression Area of the State, in the municipalit
Publicado em: 2006
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7. Análise de metabólitos secundários em culturas de Pestalotiopsis sp e Aspergillus aculeatus.
Cariophylene sesquiterpenes are chemical compounds isolated from fungi of the Pestalotiopis genus in early studies developed in our research group. In the present work, a cultivation and analysis methodology were developed for these compounds in Pestalotiopsis, isolated from plants Pinus taeda, Swietenia macrophyla and Khaya invorenses. Different procedures
Publicado em: 2006
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8. Síntese, caracterização e aplicação de catalisadores metaloporfirínicos suportados em MCM - 41
Metalloporphyrin catalysts are well known for their ability to carry out selective oxidation of organic substracts with many oxidizing agents. The current trend in the research is ancor active metalloporphyrins species on solid support, in order to achieve a better recover and reuse of these materials. Besides to prevent the formation of inactive dimmers and
Publicado em: 2006
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9. Resistência do algodoeiro à ramulose: avaliação de linhagens, indutores químicos, enzimas envolvidas na resposta de defesa e custo fisiológico da indução
Cotton is the higher economically important plant fiber producer, however yield can be seriously reduced by ramulosis, caused by the fungus Colletotrichum gossypiivar. cephalosporioides, for that the main control management practice is the use of resistant cultivars. In the present work, it was assessed resistance to ramulose of cotton lines, the induction o
Publicado em: 2006
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10. MODELAGEM E SIMULAÇÃO DA PRODUÇÃO DE BIOSSURFACTANTE E LIPASE POR FERMENTAÇÃO EM ESTADO SÓLIDO
Studies related to the biosurfactants production have been gaining interest because of their vast application in the industrial sector. Their obtainance from renewable and lowpriced substracts, as well as their high biodegradability and low toxicity to the environment, is the great potential for the future substitution of the chemical surfactants. Beyond the
Publicado em: 2006
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11. ESTUDO DOS ASPECTOS REPRODUTIVOS EM Luehea divaricata Martius (AÇOITA-CAVALO) / STUDIES OF REPRODUCTION ASPECTS IN AÇOITA-CAVALO (Luehea divaricata Martius)
The Luehea divaricata Martius (açoita-cavalo) is a tree of Tiliaceae family that is of the interest of industries due to wood the quality and also reflorestation programs. Studies about propagation are justified mainly when working with native plants, that have few research results. Two studies were conducted about specie propagation: one vegetative way and
Publicado em: 2005
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12. SÍNTESE DE 4-(FUR-2-IL)- E 4-(TIEN-2-IL)-PIRIMIDINAS A PARTIR DE β-ALCOXIVINIL TRIFLUORMETIL CETONAS / SYNTHESIS OF 4-(FUR-2-YL)- AND 4-(THIEN-2-YL)-PYRIMIDINES FROM β-ALKOXYVINYL TRIFLUOROMETHYL KETONES
The cyclocondensation of the 1,1,1-trifluoro-4-methoxy-4-(2-heteroaryl)-3-buten-2-ones (heteroaryl = furyl and thienyl) with urea and amidines (acetamidine, benzamidine, guanidine, 1H-pyrazole-1-carboxamidine and 2-methyl-2-thiopseudourea) for synthesis of two 4-(2-heteroaryl)-6-trifluoromethylpyrimidinones and a series of ten 4-(2-heteroaryl)-6-trifluoromet
Publicado em: 2005