Results 11 to 20 of about 785,223 (333)
Performing Two-Way Analysis of Variance Under Variance Heterogeneity [PDF]
Journal of Modern Applied Statistical Methods, 2003 Small sample properties of the method proposed by Brunner et al. (1997) for performing two-way analysis of variance are compared to those of the normal based ANOVA method for factorial arrangements.
Payton, Mark E., Richter, Scott J.
core +9 more sources
Variance in animal longevity: contributions of heterogeneity and stochasticity
Population Ecology, 2018 Variance in longevity among individuals may arise as an effect of heterogeneity (differences in mortality rates experienced at the same age or stage) or as an effect of individual stochasticity (the outcome of random demographic events during the life ...
N. Hartemink, H. Caswell
semanticscholar +6 more sources
Heterogeneity of Striatal Dopamine Function in Schizophrenia: Meta-analysis of Variance [PDF]
Biological Psychiatry, 2020 It has been hypothesized that dopamine function in schizophrenia exhibits heterogeneity in excess of that seen in the general population. However, no previous study has systematically tested this hypothesis.We employed meta-analysis of variance to investigate interindividual variability of striatal dopaminergic function in patients with schizophrenia ...
S. Brugger +5 more
semanticscholar +4 more sources
Assessment of heterogeneity of residual variances using changepoint techniques [PDF]
Genetics Selection Evolution, 1998 Several studies using test-day models show clear heterogeneity of residual variance along lactation. A changepoint technique to account for this heterogeneity is proposed. The data set included 100,744 test-day records of 10,869 Holstein-Friesian cows from northern Spain.
Rekaya, R. +2 more
openaire +5 more sources
Genetic evaluation of European quails by random regression models
Revista Brasileira de Zootecnia, 2012 The objective of this study was to compare different random regression models, defined from different classes of heterogeneity of variance combined with different Legendre polynomial orders for the estimate of (co)variance of quails.
Flaviana Miranda Gonçalves +5 more
doaj +1 more source
Protein folding rates correlate with heterogeneity of folding mechanism [PDF]
, 2004 By observing trends in the folding kinetics of experimental 2-state proteins at their transition midpoints, and by observing trends in the barrier heights of numerous simulations of coarse grained, C-alpha model, Go proteins, we show that folding rates ...
A. R. Fersht +10 more
core +2 more sources
Revista Brasileira de Zootecnia, 2009 Os objetivos com este estudo foram verificar a presença de interação genótipo-ambiente e comparar modelos para o ajuste do ganho pós-desmama padronizado para 345 dias de bovinos da raça Devon, via normas de reação obtidas por regressão aleatória.
Marcela Bicca Bragança Corrêa +2 more
doaj +1 more source
Study of Variability of Waste Wood Samples Collected in a Panel Board Industry
Frontiers in Chemistry, 2021 Waste wood is becoming an appealing alternative material to virgin wood, and the main drivers are the increased demand for waste wood by the panel industry, the introduction of renewable energy policies, and the waste framework directive.
Manuela Mancini, Åsmund Rinnan
doaj +1 more source
Revista Brasileira de Zootecnia, 2007 Foram simuladas nove populações, cada uma com cinco replicações da variável ganho médio diário (GMD1) com distribuição normal e média 100, variando o tamanho dos grupos e os desvios-padrão.
Mirella Leme Franco Geraldini Sirol +4 more
doaj +1 more source
Variance heterogeneity in Saccharomyces cerevisiae expression data: trans-regulation and epistasis. [PDF]
PLoS ONE, 2013 Here, we describe the results from the first variance heterogeneity Genome Wide Association Study (VGWAS) on yeast expression data. Using this forward genetics approach, we show that the genetic regulation of gene-expression in the budding yeast ...
Ronald M Nelson +3 more
doaj +1 more source