Evolutionary Strategies
Mostrando 25-36 de 135 artigos, teses e dissertações.
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25. A closer look at multiple-clone Plasmodium vivax infections: detection methods, prevalence and consequences
The naturally occurring clonal diversity among field isolates of the major human malaria parasite Plasmodium vivax remained unexplored until the early 1990s, when improved molecular methods allowed the use of blood samples obtained directly from patients, without prior in vitro culture, for genotyping purposes. Here we briefly review the molecular strategies
Memórias do Instituto Oswaldo Cruz. Publicado em: 2009-02
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26. Aplicaçaõ das técnicas Path-relinking e Vocabulary buiding na melhoria de performance do algoritmo memético para o problema do caixeiro viajante assimétrico
The present essay shows strategies of improvement in a well succeded evolutionary metaheuristic to solve the Asymmetric Traveling Salesman Problem. Such steps consist in a Memetic Algorithm projected mainly to this problem. Basically this improvement applied optimizing techniques known as Path-Relinking and Vocabulary Building. Furthermore, this last one has
Publicado em: 2009
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27. Estruturas de dados eficientes para algoritmos evolutivos aplicados a projeto de redes / Efficient Data Structures to Evolutionary Algorithms Applied to Network Design Problems.
Network design problems (NDPs) are very important since they involve several applications from areas of Engineering and Sciences. In order to solve the limitations of traditional algorithms for NDPs that involve real world complex networks (in general, modeled by large-scale complete or sparse graphs), heuristics, such as evolutionary algorithms (EAs), have
Publicado em: 2009
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28. Simulações computacionais para os efeitos da regulação ambiental sobre o crescimento e a dinâmica industrial: uma abordagem evolucionária
This research brings an evolutionary approach about the environment‟s current situation. Is a new proposed point of view, without competition between economy and the environment (as the conventional theory does). The ecology should be in the competitive strategies of the firm. Through computational simulation method was investigated the effectiveness o
Publicado em: 2009
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29. Identificação de parâmetros materiais através da simulação numérica de um processo de estampagem profunda / Parameter identification based on deep drawing experiments
Numerical simulation of metal forming processes requires a constitutive model, which depends upon adequate material parameters. A direct determination of material parameters usually admits homogeneous stress and strain states in the specimen, thereby narrowing the application range to moderate deformations or even compromising accuracy in some industrial app
Publicado em: 2009
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30. Variações no gene yolk em moscas das frutas do grupo fraterculus
Species of the fraterculus group are associated to the biggest damages to fruit crops due to the fact that they attack indiscriminately green and ripe fruits, making them pests of great economic importance. These species are hard to tell apart, even showing some potential criptic species. The understanding of the populational structure and biology of this sp
Publicado em: 2009
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31. Reproductive ecology of two species of Leptodactylus and the evolution of morphological, behavioural and ecological characters in the L. pentadactylus species group (Anura, Leptodactylidae) / Ecologia reprodutiva de duas espécies de Leptodactylus e a evolução de caracteres morfológicos, comportamentais e ecológicos no grupo de L. pentadactylus (Anura, Leptodactylidae)
Historical Ecology unifies concepts in ecology, behavior and phylogeny. To determine the evolutionary context of reproductive characters within the Leptodactylus pentadactylus species group and also to explore questions such as predation and habitat selection, I described the reproductive ecology of two key species, L. labyrinthicus and L. syphax) (Anura, Le
Publicado em: 2009
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32. Identificação e caracterização funcional dos elementos cis-regulatorios da miostatina / Identification and functional characterization of the cis-regulatory elements of myostatin
The Myostatin protein (also known as GDF8) is a member of the transforming growth factor-β (TGF-β) superfamily and is expressed almost exclusively in skeletal muscle, both in the embryo and in the adult, where the protein circulates in the blood flow. It was initially identified in 1997 by MCPHERRON et al., and since then many studies have been dem
Publicado em: 2009
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33. Macroecology of the genus Uca (Crustacea, Decapoda): patterns of diversity, distribution and responses to global climate change / Macroecologia do gênero Uca (Crustacea, Decapoda): padrões de diversidade, distribuição e respostas às mudanças climáticas globais
Macroecology of the genus Uca (Crustacea, Decapoda): Patterns of diversity, distribution and responses to global change. The genus Uca, composed by 97 species, has a worldwide distribution on coastal marine regions, mainly in tropical environments. Many researches have used the genus Uca as a model of study, although the actual scientific knowledge about thi
Publicado em: 2009
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34. A industria farmaceutica brasileira : um processo de co-evolução de instituições, organizações industriais, ciencia e tecnologia / The brazilian pharmaceutical industry : a co-evolution process between science, technology, institutuions and industrial organizations
This dissertation deals with a path-dependence analysis of the Brazilian pharmaceutical industry to show how the local firms are incorporating innovative activities, having elements of both Evolutionary and Institutional Economics as the theoretical background. By means of interviews with industry s players, the gathering of secondary source s information, a
Publicado em: 2009
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35. Diversidade funcional: como incluir a variação intraespecífica e o efeito do fogo em comunidades vegetais do cerrado
Biological diversity may influence the structure and functioning of communities in several ways, for example, altering the species resource complementarity. However, traditional diversity measures (such as species richness or diversity indices as Shannon or Simpson) have being considered as rough biodiversity estimators. In that sense, several authors sugges
Publicado em: 2009
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36. Sistemas de acasalamento com defesa territorial : evolução, regras das disputas e seleção de territorios em satirineos neotropicais / Mating systems with territorial defense : evolution, contest rules and territory selection in neotropical satyrine Butterflies
Territorial conflicts in flying insects may be resolved through many different ways. In male butterflies, size, age and motivation are often reported as important determinants of the winning chances. However, the rules used when fighting, the biological context that affects the intensity of agonistic behaviors, and the functional role of male traits in the c
Publicado em: 2009