Sampling Cross Section
Mostrando 1-11 de 11 artigos, teses e dissertações.
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1. Relevance of wood anatomy and size of Amazonian trees in the determination and allometry of sapwood area
RESUMO Processos hidrológicos de povoamentos florestais são predominantemente influenciados pela composição de espécies arbóreas e suas características morfo-fisiológicas. No entanto, existem poucos estudos sobre os padrões anatômicos que determinam o sistema hidráulico de plantas em ecossistemas tropicais. Por isso, nosso objetivo foi o de analis
Acta Amaz.. Publicado em: 2019-03
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2. Using nonparametric analysis (DEA) for measuring technical efficiency in poultry farms
The objective of this study was to determine the economic efficiency of resource utilization in broiler production farms using a non-parametric production function, data envelopment analysis (DEA). Data for the analysis were collected from a cross section of 44 farmers using a multi-stage sampling procedure. In DEA models the farmers that produce their level
Revista Brasileira de Ciência Avícola. Publicado em: 2011-12
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3. Diagnostico rapido e dialogado em estudos de desenvolvimento rural sustentavel.
O principal objetivo deste trabalho foi verificar se a suposicao de predominancia da agricultura familiar na microbacia do Taquara Branca, Sumare, SP, poderia ser sustentada com base em informacoes concretas. Foi possivel a utilizacao de amostragem probabilistica, pois estava disponivel um mapa com os limites das 106 propriedades da microbacia, sendo sortead
Pesquisa Agropecuaria Brasileira. Publicado em: 2011
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4. Avaliação bioquímica e do consumo alimentar de magnésio em mulheres saudáveis no terceiro trimestre gestacional / Biochemical and food evaluation of magnesium in healthy women in the third trimester of pregnancy
Magnesium (Mg) is an intracellular ion, an essential co-factor for over 300 enzymatic reactions, involved mainly in energy (ATP) generation. Its deficiency has been associated to complications during pregnancy such as preeclampsia, eclampsia, restriction to intrauterine fetal growth and fetal mortality. So, this observational cross-section study aimed to eva
Publicado em: 2009
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5. Avaliação da dosagem sérica de cistatina C para detecção precoce de alterações na função do enxerto após o transplante renal / Evaluation of the serum concentration of cystatin C to early detection changes in graft function after kidney transplantation
INTRODUCTION: Cystatin C is a nonglycosylated protein that is synthesized by all nucleated cells. The present study aimed to analyze the accuracy of serum concentration of cystatin C for detecting longitudinal change in glomerular filtration rate in transplanted recipients, as well to define a better methodological strategy to perform the plasma clearance of
Publicado em: 2008
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6. Management of Spodoptera frugiperda (J.E. Smith, 1797) (Lepidoptera: Noctuidae) on corn, Zea mays L.: basis for populational evaluation and biological control using the egg parasitoid Trichogramma atopovirilia Oatman &Platner, 1983 (Hymenoptera: Trichogrammatidae). / Manejo de Spodoptera frugiperda (J.E. Smith, 1797) (Lepidoptera: Noctuidae) em milho, Zea mays L.: bases para avaliação populacional e controle biológico utilizando o parasitóide de ovos Trichogramma atopovirilia Oatman &Platner, 1983 (Hymenoptera:Trichogrammatidae)
The objectives of this research were the improvement of cross-section Spodoptera frugiperda using pheromone traps to verify the capacity of dispersion of Trichogramma atopovirilia as an agent for biological pest control as well as evaluating the attractiveness of Amaranthus sp. to T. atopovirilia females. To improve cross-section of S. frugiperda, the studie
Publicado em: 2004
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7. SANDY BEACH MORPHODYNAMICS AND MACROBENTHIC COMMUNITIES IN TEMPERATE, SUBTROPICAL AND TROPICAL REGIONS - A MACROECOLOGICAL APPROACH
A comprehensive study involving 52 microtidal beaches spanning from reflective to dissipative states and located in tropical, subtropical and temperate regions in the Atlantic, Pacific and Indian oceans was carried out to unravel the relative roles of latitude and beach morphodynamics in determining beach macrobenthic species richness, abundance, biomass and
Publicado em: 2003
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8. Design and testing of ECE radiometer for Sinp-Tokamak
A multi channel ECE Radiometer, in the frequency range of 75 - 110 GHz, has been designed, constructed and tested for the SINP-Tokamak to diagnose second harmonic X-mode electron cyclotron emission (ECE). This frequency range covers approximately 80% of the plasma cross section in case of a magnetic eld of B = 1.5 T. For the maximum field of the SINP-Tokamak
Brazilian Journal of Physics. Publicado em: 2002-03
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9. Influence of Soil on Fecal Indicator Organisms in a Tidally Influenced Subtropical Environment
The potential regrowth of fecal indicator bacteria released into coastal environments in recreational water bodies has been of concern, especially in tropical and subtropical areas where the number of these bacteria can be artificially elevated beyond that from fecal impacts alone. The task of determining the factors that influence indicator bacterial regrow
American Society for Microbiology.
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10. Adenosine 5′-Triphosphate Flux Through the North Inlet Marsh System †
The distribution, fluctuation, and short-term transport of total microbial biomass (measured as adenosine 5′-triphosphate [ATP]) was investigated in a large salt marsh creek. Hourly samples were collected synoptically for 25 h from 10 boats positioned across the 320-m width of the creek. Samples were collected from three depths ranging from 0.2 to 8.0 m. H
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11. Lymphocyte proliferative response and subset profiles during extended periods of chloroquine or primaquine prophylaxis.
Immune suppression and disturbances of normal leukocyte populations are side effects attributed to many antimalarial drugs and were concerns during a recent year-long placebo-controlled trial that compared daily primaquine (0.5 mg of base per kg of body weight per day) with weekly chloroquine (300 mg of base one time per week) for malaria prophylaxis. The st