Quantitative Modelling
Mostrando 13-24 de 30 artigos, teses e dissertações.
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13. Diversidade beta na floresta ombrófila densa da Amazônia Brasileira
The drivers of the tropical forest beta diversity are still a matter of intense debate. No consensus has been reached; different studies have led to different conclusions. Nonetheless, mapped forest types are frequently used by conservation planners to represent change in floristic composition. The object of this work is to evaluate this practice, and to ver
Publicado em: 2008
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14. Study of application of quantitative methods in seismic data in the integrated reservoir characterization process / Estudo de aplicação de metodos quantitativos em dados sismicos no processo de caracterização integrada de reservatorios
The reservoir characterization process can be considered curretly the most important stage in the exploration, development and production of the oil field. However, this process is only carried out in the best way if the geologists, geophisicist and engineering has the knowledge of some definitive methods and techniques that integrated all information availa
Publicado em: 2007
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15. Gravidez na adolescência: análise de resultados nutricionais, obstétricos e neonatais / Teen pregnancy: analysis of the nutritional, obstetric and neonatal results
Teen Pregnancy is a serious public health problem. In Brazil, 20% of births come from adolescent mothers and majority of them dont have financial or emotional conditions to take on maternity. Considereing that the clinical and nutritional condition of the mother may impact the obstetric results, prenatal and health of newborns (NBs), the objective of this st
Publicado em: 2007
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16. Econometric analysis of the factor total productivity in Amazonia Legal, 1990-2004 / Análise econométrica da produtividade total dos fatores na Amazônia Legal, 1990-2004
The economic performance of Amazonia Legal and its states is evaluated based on total-factor productivity (TFP) measures obtained by the use of the exogenous growth model formulated by Solow (1956) and by the expanded human capital model proposed by Mankiw et al. (1992). The economic variables taken as proxy of the physical (synthetic quantitative index), hu
Publicado em: 2007
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17. Um Estudo dos Supermercados no Brasil: Uma Investigação sobre a Demanda de Mercado, a Fatia de Mercado e a Área de Influência / Trading Area: Quantitative Analisys and Predictive Models
This work is built upon findings of previous studies1 conducted by the author, and aims to offer a contribution to the infant retail theory. We managaed to develop and operationalize the concepts of trading area, market demand, and market share, and also to analyse the resultas of these indicators for the 27 supermarkets, in São Paulo, which were studied in
Publicado em: 24/11/2005
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18. Estudo QSAR de inibidores da secreção gastrica e simulação molecular da inibição
O estudo QSAR de inibidores da secreção gástrica e simulação molecular da inibição consiste em quatro fases. Na fase um busca-se validação dos métodos de simulação de solvatação. Na fase dois, a elaboração de modelos de relações quantitativas entre estrutura química e atividade biológica (QSAR) para compostos moduladores da secreção gá
Publicado em: 2004
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19. Um novo método para estudos dinâmicos, in situ, da infiltração da água na região não-saturada do solo. / A new method for dynamic studies, in situ, of water infiltration in the unsaturated zone of soil.
Agriculture is the human activity that most affects the environment. Huge amounts of chemicals are applied on the soil. Pesticides percolation and runoff degrades water resources. Thus, soil hydraulic properties must be known due to their influence on solute transport. The measurement of these properties and the modelling of related parameters are often diff
Publicado em: 2001
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20. Prospection survey and harvest optimization aiming at the management sustainability of a submontane semideciduous seasonal forest / Inventário de prospecção e otimização da colheita visando a sustentabilidade do manejo de uma floresta estacional semidecidual submontana
Among the activities which form a forest management system, harvest is the most expensive one, and when it is carried out with no planning it causes severe damages to the forest structure. To perform a low impact exploitation, that is, to minimize damage to the natural regeneration, that is, to minimize damage to the natural regeneration and remaining trees,
Publicado em: 2001
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21. Exposure assessment in industry specific retrospective occupational epidemiology studies.
Quantitative estimation of exposure for occupational epidemiology studies has received increasing attention in recent years and, as a result, a body of methodological literature has begun to take form. This paper reviews the generic issues in the methodology of exposure assessment, particularly methods for quantitative retrospective assessment studies. A sim
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22. Proposals for model-based paediatric medicinal development within the current European Union regulatory framework
The new paediatric European Union (EU) regulation and the consequent demand for paediatric studies on one hand and the ethical need for minimizing the burden of studies in children on the other hand necessitate optimal techniques in the assessment of safety/efficacy and use of drugs in children. Modelling and simulation (M&S) is one way to circumvent some di
Blackwell Science Inc.
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23. DNA tri- and tetra-loops and RNA tetra-loops hairpins fold as elastic biopolymer chains in agreement with PDB coordinates
The biopolymer chain elasticity (BCE) approach and the new molecular modelling methodology presented previously are used to predict the tri- dimensional backbones of DNA and RNA hairpin loops. The structures of eight remarkably stable DNA or RNA hairpin molecules closed by a mispair, recently determined in solution by NMR and deposited in the PDB, are shown
Oxford University Press.
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24. Monitoring and projecting cancer incidence in Saarland, Germany, based on age-cohort analyses.
STUDY OBJECTIVE--The aims were (1) to monitor and compare incidence rates of cancer from successive birth cohorts in Saarland over the period from 1968 to 1987; (2) to project cancer incidence in Saarland in 1988-2002 in order to provide guidelines for health policy planning. DESIGN--This was an ecological study of overlapping birth cohorts of women and men.