Results 21 to 30 of about 9,752,607 (260)

Linear mixed models for series of variety trials [PDF]

, 2011
When using linear mixed models for analysis of series of variety trials, the statistical inference space is dependent on the design of the series. In this paper, four inference spaces are recognized for one-year crop variety trials: single-year local ...
Forkman, Johannes
core   +1 more source

Half-Normal Plots and Overdispersed Models in R: The hnp Package

Journal of Statistical Software, 2017
Count and proportion data may present overdispersion, i.e., greater variability than expected by the Poisson and binomial models, respectively. Different extended generalized linear models that allow for overdispersion may be used to analyze this type of
Rafael A Moral, John Hinde, Clarice G B Demétrio   +2 more
doaj   +1 more source

R-environment package for regression analysis [PDF]

Pesquisa Agropecuária Brasileira, 2018
: The objective of this work was to develop a package in the R environment for automating and facilitating the regression analysis. Named easyreg, the package offers five functions.
Emmanuel Arnhold
doaj   +1 more source

Do Non-Cognitive Skills Produce Heterogeneous Returns Across Different Wage Levels Amongst Youth Entering the Workforce? A Quantile Mixed Model Approach

Economies
This study estimates the labor market returns to non-cognitive skills among the youth under 30 years old during the early career stage. Using data from the Russian Longitudinal Monitoring Survey (RLMS-HSE) for 2016 and 2019, it examines the effects of ...
Garen Avanesian
doaj   +1 more source

Genetic parameters and alternatives for evaluation and ranking of Nellore young bulls in pasture performance tests

Revista Brasileira de Zootecnia, 2013
The objective of this study was to estimate (co)variance components for weight at 550 days, average daily gain and an index with both traits, and to compare alternatives for evaluation and ranking of Nellore young bulls in pasture performance tests.
Breno de Oliveira Fragomeni, Daiane Cristina Becker Scalez, Fábio Luiz Buranelo Toral, José Aurélio Garcia Bergmann, Idalmo Garcia Pereira, Paula Souza Teixeira da Costa   +5 more
doaj   +1 more source

Estimação de componentes de variância sob influência de genes de efeito principal, comparando-se metodologias Bayesiana e clássica sob diferentes cenários Estimation of variance components under major genes influence, comparing Bayesian and classical methodologies under different scenarios

Revista Brasileira de Zootecnia, 2007
Quatro diferentes tipos de população foram simulados com o objetivo de verificar a influência de genes de efeito principal e do tamanho da população na estimação de componentes de variância sob seleção.
Giselle Mariano Lessa de Assis, José Marques Carneiro Júnior, Ricardo Frederico Euclydes, Robledo de Almeida Torres, Paulo Sávio Lopes   +4 more
doaj   +1 more source

Drivers of flea abundance in wild rodents across local and regional scales in the Chihuahuan Desert, northwestern Mexico

Ecosphere, 2022
The broad distribution of macroparasites and their thriving populations are matters of health and economic concern. Macroparasites cause damage both directly through their feeding habits, which impact host fitness, and indirectly through the transmission
Paulina A. Pontifes, Adriana Fernández‐González, Gabriel E. García‐Peña, Benjamin Roche, Gerardo Suzán   +4 more
doaj   +1 more source

Ovarian Sex Cord Stromal Tumors in Children and Adolescents—The European Standard Clinical Practice Recommendations

Pediatric Blood &Cancer, EarlyView.
ABSTRACT As part of the European Cooperative Study Group for Paediatric Rare Tumours initiative, we developed standard clinical practice guidelines for ovarian sex cord stromal tumors, based on comprehensive national and international cohort analyses, literature review, and a final expert consensus conference.
Dominik T. Schneider, Kris‐Ann Schultz, Nora Schnitzler, Michael Abele, Tal Ben‐Ami, Ewa Bien, Gianni Bisogno, Ines B. Brecht, Maja Cesen, Andrea Ferrari, Michaela Kuhlen, Malgorzata A. Krawczyk, Ricardo Lopez‐Almaraz, Yves Reguerre, Calogero Virgone, Daniel Orbach   +15 more
wiley   +1 more source

Bridging the Loneliness Gap: Depression, Connectivity, and Isolation in Pediatric Oncology Patients and Their Peers

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Loneliness is associated with adverse physical and mental health outcomes and remains understudied in children and adolescents undergoing cancer therapy. Pediatric oncology patients may be at increased risk due to medical isolation and disruption of social networks.
Charlotte N. Stahlfeld, Scott H. Maurer, Michelle D. Watkinson, John Nury, Elise Barberis, Molly C. Mack   +5 more
wiley   +1 more source

Latent mixed models [PDF]

, 2009
The linear mixed model has been a major research interest of Dr Arthur Gilmour, motivated by problems arising in research data generated by agricultural scientists.
Thompson, R.
core