935 resultados para diluizione,olio,CFD,MCI
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Pós-graduação em Ciências Biológicas (Farmacologia) - IBB
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Pós-graduação em Medicina Veterinária - FMVZ
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Pós-graduação em Medicina Veterinária - FMVZ
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Pós-graduação em Engenharia Mecânica - FEG
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Pós-graduação em Engenharia Mecânica - FEG
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Pós-graduação em Medicina Veterinária - FMVZ
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This study aimed to develop procedures for assessing reading comprehension of words and phrases and characterize the performance of students of 2nd year of elementary school in this procedure. It was divided into two phases: 1) preparation of evaluation tests of reading comprehension, consisting of three events: comprehension of written word (CWW), sentences (CWS) and sentences through pictures (CSP) and 2) application of the elaborated evaluation in 120 students distributed in the following groups: GI, 60 students from a public (municipal) school and GII, 60 students from a private school. The CWW test obtained the highest average of score, followed by CSP and CWS for both groups, since the picture contributes to the comprehension of the meaning either of the word and sentences. The procedure was effective to assess initial skills of reading comprehension once it identified inherent difficulties related to the literacy process.
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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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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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A silimarina é um flavonóide polifenólico extraído de frutos e sementes de Silybum marianum, que possui efeitos antiinflamatórios, citoprotetores e anticarcinogênicos. O objetivo deste trabalho foi avaliar o efeito antiinflamatório desse flavonóide sobre linhagens geneticamente selecionadas para máxima e mínima resposta inflamatória aguda, a intensidade dessa resposta foi avaliada através dos seguintes parâmetros: contagem total e diferencial de células, concentração protéica do exsudato infamatório e dosagem de H2O2 através de cultura de células do infiltrado. Para a avaliação do efeito da silimarina, as linhagens foram divididas em dois grupos, grupo AIRmax e grupo AIRmin, e cada um desses grupos foi subdividido em outros três grupos, de acordo com a forma de tratamento determinada (grupo controle, grupo tratado com silimarina 200mg/kg e grupo tratado com silimarina 100mg/kg). Os animais foram tratados durante seis dias consecutivos, recebendo um total de seis doses; ao final do tratamento os animais foram submetidos à indução flogógena pelo composto BIOGEL-P100 por via subcutânea, ao final de 24 horas o exsudato inflamatório foi retirado do dorso dos animais e preparados para análise. Os resultados demonstraram que a silimarina afetou significativamente alguns dos parâmetros avaliados. A contagem total de células mostrou redução significativa no número de células presentes no infiltrado do grupo AIRmax tratado com silimarina 100mg/kg em relação ao seu grupo controle; na contagem diferencial de células houve redução significativa no número de neutrófilos encontrados em amostras do exsudato dos animais AIRmax tratados com silimarina 100mg/kg, assumindo um padrão de resposta semelhante ao da contagem total; a concentração protéica mostrou redução significativa nos grupos AIRmax tratados com 100 e 200mg/kg em relação ao seu controle, indicando um possível efeito modulador da silimarina
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The internal combustion engine is a heat engine widely used in the automotive industry. In order to better understand its behavior many models in the literature have been proposed in the last years. The 0-D thermodynamic model is a fairly simple tool but it is very useful to understand the phenomenon of combustion inside the chamber of internal combustion engines. In the first phase of this work, an extensive literature review was made in order to get information about this kind of analysis and, after this, apply them in a model able to calculate the instantaneous temperature and pressure in one zone of the combustion chamber of a diesel engine. Therefore some considerations were made with the aim of increasing the accuracy of the model in predicting the correct behavior of the engine, adding the combined effects of heat transfer, leakage and injection. In the second phase, the goal was to study the internal flow of a three-dimensional model of an internal combustion engine. In order to achieve this goal the software Solidworks was used to create the geometries of an engine and the suite of softwares Ansys was used to create the moving mesh (ICEM CFD and CFX-Pre) and to solve the CFD problem (Ansys CFX code). The model was able to perform the air flow simulation during the four-stroke cycle of an engine: admission, compression, expansion and exhaust. The results obtained from both models were suitable and they open a new range of possibilities for future researches on the field
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The 131I (radioactive iodine) is one of the most used radionuclides in nuclear medicine for diagnosis and treatment. The present study evaluates the dosimetric aspects related to radioiodine therapy after thyroidectomy in patients with thyroid cancer. The samples were studied with 50 patients undergoing treatment, by assessing the exposures of workers (nursing assistants, staff hygiene, medical and physical), the general public (accompanying and family members) and on the environment. To evaluate the workers, was made a survey of the environmental conditions of the room radioiodine and routines adopted by them during the treatment period. Estimating the dose equivalent per month for each employee, we observed that the maximum levels obtained for nursing assistants, the team of hygiene, medical and physicians were considered low in relation to the extent permitted by law. In order to assess the public, some situations have been suggested for the calculation of equivalent doses in which it was possible to verify the fundamental importance of isolating the patient in the 2 days first. Regarding the environment, the radioactive waste generated by patient had volume of 1.0 m3 and activity estimated at 0.91 mCi, taking a decay time for eliminating them about 75 days to reach the allowable value of 2 μCi / kg system of collecting garbage. Therefore, all radioactive waste removed from the patient's room should be sent to the warehouse for temporary storage of radioactive waste, located away from normal work areas