Adaptative Analysis
Mostrando 25-36 de 48 artigos, teses e dissertações.
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25. Users continuous authentication in computers networks. / Autenticação contínua de usuários em redes de computadores.
Context-aware Computing allows to obtain and use context informations acquired through devices in the environment, with the goal to provide services. This dynamics, allied to the computer networks evolution, has been provoking deep modifications in peoples social and behavior aspects, seeing that they have the necessity to live immersed in technology and int
Publicado em: 2006
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26. APLICAÇÃO DE MODELOS NÃO LINEARES EM NEGOCIAÇÃO AUTOMÁTICA NO MERCADO ACIONÁRIO BRASILEIRO / APPLICATION OF NONLINEAR MODELS FOR AUTOMATIC TRADING IN THE BRAZILIAN STOCK MARKET
Esta dissertação tem por objetivo comparar o desempenho de modelos não lineares de previsão de retornos em 10 ativos do mercado acionário brasileiro. Entre os modelos escolhidos, pode-se citar o STAR-Tree, que combina conceitos da metodologia STAR (Smooth Transition AutoRegression) e do algoritmo CART (Classification And Regression Trees), tendo como re
Publicado em: 2006
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27. Analise das reservas de sementes de especies arboreas da restinga do municipio de Ipojuca-PE / Seed reserves of arboreal species in restinga from Ipojuca, in the state of Pernambuco, Brazil
Restinga of the northeast have been barely studied in all their aspects. Thus, this work was as objective analyzes seeds of arboreal species of great occurrence in the eserva Particular do Patrimônio Nacional (RPPN) de Nossa Senhora do Outeiro de Maracaípe n Ipojuca, located at the sea coast of Pernambuco to contribute with the knowledge of structure and t
Publicado em: 2006
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28. Análise da influência da geoquímica do ambiente e das características do substrato na estruturação da população de Corbicula flumínea, MULLER 1974, (Mollusca, Bivalvia) no reservatório da usina elétrica de Volta Grande - MG/SP
Corbicula fluminea (Müller, 1774) is a very common fresh water bivalve specie in Asiatic continent. Nowadays can be found widespread distributed in Europe, North and South America. Considering their high reprodutive rate and spreading capacity of their juvenile plancton forms, this bivalve could be considered as a highly invading specie, being a dominant co
Publicado em: 2006
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29. Analysis of ontogenetic variability of Bothrops insularis (Amaral, 1921) snake venom: adaptative implications for dietary items / Análise da variabilidade ontogenética do veneno de Bothrops insularis (Amaral, 1921)(Serpentes, Viperidae): implicações adaptativas aos itens alimentares
Mudanças ontogenéticas na dieta e na composição do veneno são características freqüentemente observadas em espécies do gênero Bothrops. A serpente Bothrops insularis é endêmica da Ilha da Queimada Grande, litoral Sul de São Paulo, cuja separação do continente ocorreu há aproximadamente 11 000 anos, após a última glaciação ao final do Pleis
Publicado em: 2006
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30. Before and after trauma: traumatic experience and assumptive worldviews / Antes e depois do trauma: vivência traumática e o mundo presumido
Stress is a natural adaptative attempt that mammals use to deal with threatening situations. This process causes series of physiological reactions that happen in cycles that begin and end. However, there are situations where this reaction processes have no end because of stressing agent intensity. It happens in traumatic events that request more time to cope
Publicado em: 2005
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31. Crescimento e sobrevivência do recombinante Rhodococcus sp. isolado RHA1 (fcb) em turfa comercial e solo contaminado com PCB / Growth and survival of recombinant Rhodococcus sp. isolate RHA1 (fcb) in commercial peat and in PCB contaminated soil
The group of organochlorates Biphenyl Polychlorates (PCBs) is of difficult degradation and persistent in the environment, being associated to several problems in the organisms due to its toxicological potential. The isolate RHA1 (fcb) from Rhodococcus sp. was genetically built with the introduction of the operon of hydrolytic degradation 4-chlorobenzoate (fc
Publicado em: 2005
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32. Estudo do efeito de dipolos em arranjos de antenas adaptativas de sistemas de comunicação DS-CDMA
This master dissertation introduces a study about some aspects that determine the aplication of adaptative arrays in DS-CDMA cellular systems. Some basics concepts and your evolution in the time about celular systems was detailed here, meanly the CDMA tecnique, specialy about spread-codes and funtionaly principies. Since this, the mobile radio enviroment, wi
Publicado em: 2003
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33. Estudo do efeito de dipolos em arranjos de antenas adaptativas de sistemas de comunicação DS-CDMA
This master dissertation introduces a study about some aspects that determine the aplication of adaptative arrays in DS-CDMA cellular systems. Some basics concepts and your evolution in the time about celular systems was detailed here, meanly the CDMA tecnique, specialy about spread-codes and funtionaly principies. Since this, the mobile radio enviroment, wi
Publicado em: 2003
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34. Selection of organic substances as references in toxicity tests with embryos of the oyster Crassostrea rhizophorae, Guilding, 1828 control of the analytic quality of ecotoxicological tests. / Seleção de substâncias orgânicas como referência em testes de toxicidade com embriões da ostra Crassostrea rhizophorae, Guilding, 1828: controle da qualidade analítica de testes ecotoxicológicos.
The degradation of the aquatic ecosystems in increasing over time, in all the coastal áreas, where countless anthropic activities generates a series of contaminants which, may cause adverse effects on the local biota. To evaluate those effects, toxicity tests are used with the objective of preventing and/or to minimize potential impacts in those ecosystems.
Publicado em: 2003
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35. Influencia das proteinas de soro de leite bovino no estado nutricional, composição corporal e sistema imune em coorte de crianças com Sindrome da Imunodeficiencia Adquirida (AIDS)
HIV-1 infected children rise special concem about their nutritional and health status, due to immunosuppressive effects of the infection. The development of strategies for the recovery of the nutritional status and enhancement of the immune system is of great interest for immunodepressed patients. Nutritional supplementation with whey proteins is recognized
Publicado em: 2002
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36. Study of psychological aspects and its implications for the occurence of hypertension during pregnancy / Estudo dos aspectos psicológicos e sua influência no desenvolvimento da hipertensão gestacional
The pregnancy is one of the most critical stages of the human development not only for women but also men. Thats a transient moment of the existency that requires a personal adjustments in various aspects of life. This, showing the necessity of a change of identity as well as reevaluation of roles. During pregnancy, there are peculiar emocional status and a
Publicado em: 2002