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Mostrando 25-36 de 52 artigos, teses e dissertações.
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25. Comparison of gas chromatographic and gravimetric methods for quantization of total fat and fatty acids in foodstuffs
Different methods to determine total fat (TF) and fatty acids (FA), including trans fatty acids (TFA), in diverse foodstuffs were evaluated, incorporating gravimetric methods and gas chromatography with flame ionization detector (GC/FID), in accordance with a modified AOAC 996.06 method. Concentrations of TF and FA obtained through these different procedures
Química Nova. Publicado em: 2010
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26. Efeito da Adição de Dimetilformamida ao Diluente ACP-106 C Sobre as Características do Sêmen Canino Congelado. / Effect of Adding Dimethylformamide the ACP-106 C Diluent About Featured Canine Frozen Semen.
Several studies have been developed in the intention of already improving the protocols existent for the freezing of canine semen. With that the present work had two objectives: 1) to evaluate the effect of the addition of different dimethylformamide concentrations on the characteristics of the canine semen diluted in coconut water in the powder form (ACP-10
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 09/12/2009
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27. Comparação de técnicas de determinação de ésteres em cachaça
An analytical comparison of three different techniques for quantitative profile of esters in cachaça is reported. The Ministério da Agricultura Pecuária e Abastecimento (MAPA) recommends the use of GC/FID or volumetry. Despite being laborious and lacking in chemical speciation, the volumetric technique for total ester content shows to be appropriate, repr
Química Nova. Publicado em: 2009
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28. Alterações atencionais na distrofia muscular de duchenne / Attentional disturbance in Duchenne Muscular Dystrophy
OBJECTIVE: Considering the divergence in the literature regarding the base of the cognitive deficits in Duchenne Muscular Dystrophy (DMD) patients, the objective of this work was to investigate their attention performance using psychophysical tests. METHODS: 25 boys with DMD (GD) and 25 healthy boys (GC), which were 10 to 16 years old, were tested in a choic
Publicado em: 2009
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29. Determinação de resíduos dos pesticidas pirimetanil, pirimicarbe e buprofezina em águas ambientais por SPME e GCMS
The aim of the work was to develop method for determining pyrimethanil, pirimicarb and buprofezin residues in environmental water using solid-phase microextraction and gas chromatography-mass spectrometry. To perform the SPME, a 100 μm polydimethylsiloxane (PDMS) fiber was used for the extraction of the pesticides from water samples. Using univariate op
Publicado em: 2009
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30. Two fast screening methods (GC-MS and TLC-ChEI assay) for rapid evaluation of potential anticholinesterasic indole alkaloids in complex mixtures
Dentre os tratamentos da doença de Alzheimer (DA) está o uso de inibidores da enzima acetilcolinesterase. Pesquisas recentes visando a descoberta de novos agentes terapêuticos naturais para esta doença sugerem que o gênero Tabernaemontana é uma fonte promissora de alcalóides indólicos anticolinesterásicos. Neste trabalho, duas técnicas de análise
Anais da Academia Brasileira de Ciências. Publicado em: 2008-09
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31. Efeito da desnutrição protéica pré e pós-natal sobre a morfologia, a diferenciação e o metabolismo do tecido muscular estriado esquelético em ratos
OBJETIVO: Estudar características morfológicas, metabolismo e habilidades contráteis do músculo submetido a desnutrição protéica pré e pós-natal. MÉTODOS: Distribuição dos animais em dois grupos: controle, dieta normoprotéica (GC; n = 15; 5/5/5) e desnutrido, dieta hipoprotéica (GD; n = 15; 5/5/5), observados respectivamente no sétimo, 14º e
Jornal de Pediatria. Publicado em: 2008-06
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32. Study of some inflammatory markers and metabolic syndrome in overweight adolescents and in those metabolic obese normal weight / Estudo de alguns marcadores inflamatórios e de síndrome metabólica em adolescentes com sobrepeso e naquelas metabolicamente obesas de peso normal
The subclinical chronic inflammation is confirmed as a new syndrome related to the development of insulin resistance. The fat tissue appears as important organ responsible for the increased expression of inflammatory substances, contributing to the development of this syndrome. This condition in adolescents with excess body fat is little known. The aim of th
Publicado em: 2008
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33. Effect of chemical disinfection on the hardness and roughness of denture base resins and hard chairside resins: a longitudinal study / Efeito da desinfecção química sobre a microdureza e rugosidade superficial de resinas para base de dentaduras e resinas rígidas para reebasamento: estudo longitudinal
O objetivo deste estudo foi investigar, longitudinalmente, o efeito de cinco soluções desinfetantes sobre a microdureza e rugosidade superficial de uma resina acrílica termopolimerizável e três materiais reembasadores rígidos. Um total de 240 corpos de prova circulares (30 X 6mm) foram fabricados, utilizando um material para base de dentaduras (Luciton
Publicado em: 2007
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34. Elevated amniotic fluid amino acid levels in fetuses with gastroschisis
Our objective was to measure maternal plasma and amniotic fluid amino acid concentrations in pregnant women diagnosed as having fetuses with gastroschisis in the second trimester of pregnancy. Twenty-one pregnant women who had fetuses with gastroschisis detected by ultrasonography (gastroschisis group) in the second trimester and 32 women who had abnormal tr
Brazilian Journal of Medical and Biological Research. Publicado em: 2006-08
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35. Estudo clinico-molecular e analise da textura epidermica de pacientes com sindrome de Sjogren-Larsson / Molecular genetic study and texture analysis of the epidermis in patients with Sjogren-Larsson Syndrome
Background: Sjögren-Larsson syndrome (SLS) is an autosomal recessive disorder characterized by ichthyosis, mental retardation, and spasticity. Various mutations in the ALDH3A2 gene that codes for fatty aldehyde dehydrogenase (FALDH) are responsible for the disease but the genotype-phenotype relationships are undefined. Objectives: The purpose of this study
Publicado em: 2006
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36. Study of the metabolism of Xylaria sp., na endophyte fungus isolated from the fruits of Sapindus saponaria / Contribuição ao estudo do metabolismo micromolecular de Xylaria sp., um fungo endofítico isolado de Sapindus saponaria
This work reports the study of a surprising plant microorganism relationship, involving the plant Sapindus saponaria, which is rich in antigungal saponins, and an endophyte fungus isolated from the pericarpe of the fruits collected in the host plant, and identified as Xylaria sp. The main objective of this work was to understand the survival mechanism of thi
Publicado em: 2006