Buscar
Mostrando ítems 1-10 de 2077
Assessment of variance components in nonlinear mixed-effects elliptical models
(SpringerNew York, 2012)
The issue of assessing variance components is essential in deciding on the inclusion of random effects in the context of mixed models. In this work we discuss this problem by supposing nonlinear elliptical models for ...
Earnings dynamics and inequality in Venezuela: 1995-1997
(Escola de Pós-Graduação em Economia da FGV, 2002-11-07)
In this paper, we decompose the variance of logarithmic monthly earnings of prime age males into its permanent and transitory components, using a five-wave rotating panel from the Venezuelan 'Encuesta de Hogares por Muestreo' ...
On identifiability of (co)variance components in animal models with competition effects
(Wiley Blackwell Publishing, Inc, 2008-12)
There is an increased interest in estimating the (co)variance components of additive animal models with direct and competition effects (AMC). However, some attempts to estimate the dispersion parameters in different animal ...
Genetic principal components for reproductive and productive traits in Holstein cows reared under tropical conditions
(Springer, 2021-06-01)
The objective of this study was to compare the standard multi-trait model and five reduced-rank models fitted to the first principal components and genetic parameter estimates in order to determine the most appropriate ...
Software Selegen-REML/BLUP: a useful tool for plant breeding
(Crop Breeding and Applied Biotechnology, 2018)
Evaluating gene by sex and age interactions on cardiovascular risk factors in Brazilian families
(BIOMED CENTRAL LTD, 2010)
Background: In family studies, it is important to evaluate the impact of genes and environmental factors on traits of interest. In particular, the relative influences of both genes and the environment may vary in different ...
Best linear unbiased predictor in the mixed model with incomplete data
(Marcel Dekker Inc, 1998)
The problem of predicting individual measurement is considered. This paper develops the Best Linear Unbiased Predictor (BLUP) of the fixed and random effects and the missing observations, under a mixed linear model. The ...
Genetic evaluation using multi-trait and random regression models in Simmental beef cattle
(Genetics and Molecular Research, 2017)
Earnings inequality in Brazil: is it permanent or transitory?
(Sociedade Brasileira de Econometria, 2007-11-01)
This paper seeks to analyze the dynamic behavior of prime-age male workers’ earnings inequality in the formal labor market of the State of S˜ao Paulo in the years 1990-1998. The aim is to fit an econometric model of unobserved ...