Fixed Effects Models
Mostrando 1-12 de 87 artigos, teses e dissertações.
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1. Dietary and circulating vitamin D and risk of renal cell carcinoma: a meta-analysis of observational studies
ABSTRACT Objective: This meta-analysis is the first to evaluate the associations of circulating and dietary intake of vitamin D with risk of risk of renal cell carcinoma (RCC). Our findings showed that higher circulating vitamin D level and dietary vitamin D intake were associated with a reduced risk of RCC. The possible explanation might be attributed to t
Int. braz j urol.. Publicado em: 2021-08
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2. HEIGHT-DIAMETER RELATIONSHIPS FOR Eucalyptus grandis HILL EX. MAIDEN IN MOZAMBIQUE: USING MIXED-EFFECTS MODELING APPROACH
ABSTRACT Equations express that height-diameter relationships are used to estimate tree heights that were not measured in the plots, as well as to calculate their volumes. In this study, we modelled height for Eucalyptus grandis Hill ex. Maiden stands using nonlinear mixed effect models in Mocuba District, Central Mozambique. Models were tested from 1414 tre
CERNE. Publicado em: 2020-06
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3. MULTILEVEL NONLINEAR MIXED-EFFECTS MODEL AND MACHINE LEARNING FOR PREDICTING THE VOLUME OF Eucalyptus SPP. TREES
ABSTRACT Volumetric equations is one of the main tools for quantifying forest stand production, and is the basis for sustainable management of forest plantations. This study aimed to assess the quality of the volumetric estimation of Eucalyptus spp. trees using a mixed-effects model, artificial neural network (ANN) and support-vector machine (SVM). The datab
CERNE. Publicado em: 2020-03
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4. Progresso da queima das pontas das folhas da cebola sob diferentes programas de aplicação de fungicidas
RESUMO A queima das pontas das folhas da cebola, causada por Botrytis squamosa, é controlada por meio de pulverizações foliares com fungicidas seguindo um calendário fixo, sem considerar o progresso da doença. O regime de pulverização baseado em um sistema de previsão pode prever seu progresso e com isso possibilitar a redução do número de pulveri
Summa phytopathol.. Publicado em: 17/01/2020
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5. Multilevel modeling for longitudinal data: concepts and applications
Abstract Purpose This paper aims to discuss multilevel modeling for longitudinal data, clarifying the circumstances in which they can be used. Design/methodology/approach The authors estimate three-level models with repeated measures, offering conditions for their correct interpretation. Findings From the concepts and techniques presented, the authors can
RAUSP Manag. J.. Publicado em: 13/12/2019
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6. Investor sentiment and earnings management in Brazil
RESUMO A pesquisa analisa se existe associação temporal entre o sentimento do investidor e o gerenciamento de resultados no Brasil. Vários estudos investigaram os determinantes do gerenciamento de resultados, fatores externos ou internos das empresas e normativos, mas poucos consideraram fatores pessoais, tal como o sentimento dos investidores no Brasil.
Rev. contab. finanç.. Publicado em: 09/12/2019
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7. Differential effects of the methylenetetrahydrofolate reductase polymorphisms (C677T and A1298C) on hematological malignancies among Latinos: a meta-analysis
Abstract Our objective was to determine the association between the methylenetetrahydrofolate reductase polymorphisms (C677T and A1298C) and the risk of developing acute lymphoblastic leukemia (ALL), chronic myeloid leukemia (CML), acute myeloid leukemia (AML), and multiple myelomas (MM) in Latinos. PubMed, SCOPUS, EBSCO, LILACS, and other Latin-specific dat
Genet. Mol. Biol.. Publicado em: 14/11/2019
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8. MATHEMATICAL MODELLING AND IMMEDIATE AND LATENT QUALITY OF NATURAL IMMATURE COFFEE UNDER DIFFERENT DRYING CONDITIONS
ABSTRACT This work aimed to study the immediate and latent effects of different relative humidities on the quality of dried coffee fruits, describe the drying kinetics of natural immature coffee (Coffea arabica L.), and evaluate the mathematical model that best fits the experimental drying data. The drying was carried out in a fixed layer dryer coupled to a
Eng. Agríc.. Publicado em: 04/11/2019
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9. SITE INDEX FOR PROSOPIS ALBA PLANTATIONS IN THE SEMI-ARID CHACO THROUGH MIXED MODELS
ABSTRACT The classification of sites through curves of Site Index allows to predict the yield of the planted forests at a certain age of the stand and to plan cultural treatments. The goal of this research was to compare linear and non-linear models of fixed effects vs. mixed non-linear models to estimate the site index in plantations of Prosopis alba var Gr
CERNE. Publicado em: 09/09/2019
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10. Factores socioeconómicos asociados con la mortalidad por homicidios en Colombia, 2000-2014
Abstract The scope of this paper was to analyze the trends, impact on life expectancy and effect of the main associated socioeconomic factors with the death rate by homicide in Colombia between 2000 and 2014 at the state level, by gender and age groups. Standardized mortality rates and years of life lost among those under 85 years of age were calculated and
Ciênc. saúde coletiva. Publicado em: 05/08/2019
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11. Incentivos para inovação tecnológica: um estudo da política pública de renúncia fiscal no Brasil
Resumo Este artigo tem por objetivo explicar relações entre os investimentos em pesquisa e desenvolvimento (P&D) e os resultados da inovação entre os anos de 2009 e 2013 em empresas beneficiárias dos incentivos para inovação tecnológica da Lei n. 11.196 (2005) - a chamada Lei do Bem. São estimados modelos econométricos logit para efeitos fixos e mo
Rev. Adm. Pública. Publicado em: 15/07/2019
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12. UTILIZAÇÃO DE MODELOS DE REGRESSÃO ALEATÓRIA PARA OBTENÇÃO DE PARÂMETROS GENÉTICOS DE BOVINOS DA RAÇA TABAPUÃ
Resumo Este trabalho utilizou 28.643 registros de pesos, do nascimento aos 660 dias de idade, de 6.471 animais da raça Tabapuã para estimar componentes de variância, covariância e parâmetros genéticos, utilizando o modelo de regressão aleatória. Foi utilizado algoritmo de busca AIREML através do método da máxima verossimilhança restrita pelo prog
Ciênc. anim. bras.. Publicado em: 10/06/2019