Microelements
Mostrando 13-20 de 20 artigos, teses e dissertações.
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13. Caracterizacao qualitativa e quantitativa de elementos pela tecnica de fluorescencia de raios X, em suplementos minerais para animais. II. Dispersao de energia.
Estabeleceu-se uma metodologia para caracterizacao qualitativa e quantitativa de elementos, em amostras de suplemento mineral para animais, por meio da fluorescencia de raios X por dispersao de energia (ED-XRF) com excitacao com fontes radioativas (55Fe, 238Pu e 109Cd) e deteccao dos raios X com detector semi-condutor de Si(Li). Com o emprego de amostras-pad
Pesquisa Agropecuaria Brasileira. Publicado em: 2011
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14. Prevalence of anemia in under five-year-old children in a children's hospital in Recife, Brazil
INTRODUCTION: Anemia is a nutritional problem of global importance. It is estimated that at least one-third of the population has been at one time anemic. OBJECTIVE: To evaluate the prevalence of anemia and associated factors in patients of a children's hospital in Recife. METHODS: A cross-sectional study was developed involving 595 male and female children
Revista Brasileira de Hematologia e Hemoterapia. Publicado em: 2011
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15. Capacidade tecnológica em sistemas agroindustriais: proposição de índice e aplicação a empresas dos segmentos de trigo e leite
The technological capabilities play a crucial role in determining the production processes efficiency and effectiveness and increase the degree of enterprises innovativeness. Its measurement can help enterprises evaluate their strengths and weaknesses in terms of their ability to generate, use and adapt technologies and products, that is, it can assist them
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 13/09/2010
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16. Determinação direta de constituintes inorganicos em leite por ICP OES : comparação critica do desempenho analitico em configuração de tocha axial e radial, usando uma mistura de animais terciarios (CFA-C) como solvente
In this work the insertion of milk samples in an instrument of optical emission in plasma (ICP OES) after a simple dilution in a mixture of soluble tertiary amines in water (CFA-C 10% v/v) was explored. Macro (Al, Ca, K, Mg, Na and P) and micro-elements (Al, Ba, Cu, Fe, Mn, Mo, Se and Zn) were determined using both plasma configurations axial and radial. The
Publicado em: 2004
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17. Análise comparativa da composição de soja orgânica e não orgânica
This dissertation includes a review over the benefit of soybean in human health and a comparative analysis between organic and no organic soybean. The review studies the history in Brazil, its importance as food and functional food, with comparisons between soybean and other type of foods. It describe also about isoflavones, its influence in the soybean plan
Publicado em: 2003
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18. Efeito de flavonoides no eritrocito de individuos normais e portadores de anemia falciforme
Oxygen reactive species (ROS) are constantly formed in aerobic cells, particularly in the mithocondria and erythrocytes. These ROS, under normal conditions, are removed by an efficient antioxidant system composed by antioxidant enzymes, glutathione, vitamines and microelements. However, when the ROS production is higher than the antioxidant system capacity,
Publicado em: 2002
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19. Growth of Chlamydomonas mudana in the Presence of Different Synthetic Chelators
Six synthetic chelators were investigated in culture media for Chlamydomonas mundana. The effects on growth of chelator-iron ratios in the range 25 to 400 μM were studied in relation to Ca, heavy metal concentrations, and incubation time. Effects ranged from none through stimulation to inhibition. The most delicate balance of trace metal requirements with a
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20. Mineral Nutrient Requirements of a Loblolly Pine (Pinus taeda) Cell Suspension Culture 1: Evaluation of a Medium Formulated from Seed Composition Data
The mineral nutrient requirements of Pinus taeda cells were explored using quantitative cell culture growth measurements. An appraisal was thereby made of the critical features of a novel and successful medium which was developed specifically for this gymnosperm using chemical composition data for developing seeds, and characterized by generally high concent