Realized Variance
Mostrando 1-12 de 41 artigos, teses e dissertações.
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1. Fantastic Lifestyle Questionnaire applied to undergraduate medical students during the COVID-19 pandemic: a factor analysis
SUMMARY OBJECTIVE: To identify what structure represents life style in medical students, in a public university, with the application of the Fantastic Lifestyle Questionnaire. METHODS: This is a cross-sectional exploratory study. The Fantastic Lifestyle Questionnaire was applied online to medical students. Factorial analysis was realized and factors were e
Revista da Associação Médica Brasileira. Publicado em: 2022
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2. TECHNOLOGICAL QUALITY OF SOYBEAN OIL OBTAINED FROM STORED GRAIN UNDER CONTROLLED ENVIRONMENTAL CONDITIONS
ABSTRACT: Soybean oil has many important components, but for its maintenance it is essential that there is an appropriate storage, temperature, relative humidity and optimum grain moisture content, because the oxidation reactions occur by improper storage, causing product deterioration. The objective of this study was to evaluate the main changes in the qual
Eng. Agríc.. Publicado em: 2016-12
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3. Dados de alta frequência : averiguando o impacto de microestrutura de mercado e sazonalidade intradiária na detecção de saltos e estimação da variação quadrática
Neste trabalho, visamos mostrar as características usuais dos dados de alta frequência, bem como utilizar modelagem não paramétrica para estimar a variância/volatilidade para esses dados. Após uma revisão sobre microestrutura de mercado, sazonalidade intradiária, variação quadrática e saltos, utilizamos os dados da PETR4 para estimar a variância
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2012
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4. Análise microbiológica comparativa da ação de diferentes agentes descontaminantes sobre superfícies de titânio / Microbiological comparison of different decontaminant agents on rough and smooth titanium surfaces: microbiological analysis
Actually, the titanium implants are a successful option of treatment in Dentistry. However, failures are possible to occur due to surface exposition to oral environment immediately or lately after its implantation. The titanium implants surfaces can be infected by bacteria and its products similarly to dental roots surfaces. The contaminants turn the inflamm
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/09/2011
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5. Avaliação da dureza Knoop de dentes artificiais de resina acrilica submetidos a metodos de desinfecção quimica e por energia de micro-ondas / Knoop hardness of resin denture teeth after chemical and microwave disinfection
The aim of this study was to evaluate the effect of disinfectant solutions of 2% glutaraldehyde and 1% sodium hypoclorite and microwave disinfection in Knoop hardness values of five brands of acrylic resin denture teeth Trilux (Ruthinium), Biocler (Pirassununga), Biotone (Dentsply), New Ace (Yamahachi) e Magister (Heraeus-Kulzer). One hundred specimens were
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 12/02/2010
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6. Estimação da volatilidade : uma aplicação utilizando dados intradiários
O estudo da volatilidade dos retornos dos ativos ocupa um lugar de destaque dentro da moderna teoria de finanças. Tradicionalmente, os modelos empregados para a modelagem da volatilidade são estimados a partir de dados diários. No entanto, a recente disponibilidade de dados intradiários tem permitido a modelagem e a previsão da volatilidade dos ativos p
Publicado em: 2010
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7. Padrões florísticos e estruturais das Florestas Estacionais Semideciduais do Triângulo Mineiro, MG / Floristic and structural patterns of semideciduous seasonal forests of Triângulo Mineiro, MG
The semideciduous seasonal forests (SSF) of southeastern Brazil have a high floristic diversity, accompanied by a high beta diversity, even between nearby fragments. However, nowdays these forests have been represented by a large number of small fragments, a landscape pattern typical for this region. In addition to the processes related to fragmentation, the
Publicado em: 2010
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8. AVALIAÇÃO E SELEÇÃO DE PROGÊNIES DE MEIOS IRMÃOS DE GUARANAZEIRO (Paullinia cupana var. sorbilis (Mart.) Ducke) UTILIZANDO CARACTERES MORFO-AGRONÔMICOS
The aim of this study was to estimate the genetic parameters, variance components, genetic correlations and constructing a selection index of guarana individuals for seed production and a breeding population, among half sib progenies of guarana in Maués, Amazonas, Brazil. Thirty-six progenies were evaluated in a randomized incomplete block design with two r
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 21/08/2009
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9. Bias in the prediction of genetic gain due to mass and half-sib selection in random mating populations
The prediction of gains from selection allows the comparison of breeding methods and selection strategies, although these estimates may be biased. The objective of this study was to investigate the extent of such bias in predicting genetic gain. For this, we simulated 10 cycles of a hypothetical breeding program that involved seven traits, three population c
Genetics and Molecular Biology. Publicado em: 17/07/2009
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10. Futuros de swap de variância e volatilidade na BM&F - apreçamento e viabilidade de hedge / Variance and volatility swaps future contracts in BM&F pricing and hedge viability
A variance swap can theoretically be priced with na infinite string of vanilla call and put options if we consider that realized variance follows a purely diffusive process with continuous monitoring. In this dissertation, we will address the possible pricing differences that may arise if we consider that realized variance is discretely monitored. It will be
Publicado em: 2009
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11. Viability of reciprocal recurrent selection in populations derived from single-cross maize hybrids / Viabilidade da seleÃÃo recorrente recÃproca em populaÃÃes derivadas de hÃbrido simples de milho
In a recurrent selection program it is primordial to know whether genetic progress has been reached and the existence of genetic variability for future selection cycles. Thus, this work was carried out to evaluate the genetic progress up to C2, on a first stage, and to estimate genetic variance and covariance components, responses to selection and heterosis
Publicado em: 2009
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12. Bone quantity and quality assessed by ultrasound of phalanges in black and white children s six to eleven years old / Quantidade e qualidade ossea avaliada pela ultrassonografia de falanges em crianças brancas e negras de seis a onze anos de idade de diferentes
Thesis Structuring: The present study opted for the "Scandinavian Model" which is called the "Alternative Model" in the Post-Graduation Program in Child and Adolescent Health from the Medical Sciences College of University of Campinas (UNICAMP). Therefore, the thesis was compounded by introduction, objective, chapters (I and II) and general conclusion. The i
Publicado em: 2009