Results 71 to 80 of about 9,752,607 (260)

Covariate random effects on the CD4 count variation during HIV disease progression in women

open access: yesHIV/AIDS: Research and Palliative Care, 2019
Partson Tinarwo, Temesgen Zewotir, Delia NorthSchool of Mathematics, Statistics and Computer Science, University of KwaZulu-Natal, Durban, South AfricaPurpose: To investigate the variation in CD4 count between HIV positive patients due to clinical ...
Tinarwo P, Zewotir T, North D
doaj  

EM-REML estimation of covariance parameters in Gaussian mixed models for longitudinal data analysis

open access: yesGenetics Selection Evolution, 2000
This paper presents procedures for implementing the EM algorithm to compute REML estimates of variance covariance components in Gaussian mixed models for longitudinal data analysis.
Robert-Granié Christèle   +2 more
doaj   +1 more source

Salmonella lipopolysaccharide‐containing supported lipid bilayers as platforms to study bacteriophage interactions

open access: yesFEBS Letters, EarlyView.
We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace   +6 more
wiley   +1 more source

Unraveling the genetic potential of Indian rice germplasm for reproductive stage drought tolerance

open access: yesFrontiers in Plant Science
Climate change poses a serious threat to future food security on a global scale. Drought is the most challenging abiotic stress, limiting rice production in rainfed rice ecosystems. Therefore, an experiment was designed under three distinct environments,
Santhiya Subramanian   +9 more
doaj   +1 more source

Selection indexes in the simultaneous increment of yield components in topcross hybrids of green maize [PDF]

open access: yesPesquisa Agropecuária Brasileira
: The objective of this work was to define the most suitable selective strategy for the simultaneous increment of yield components of green maize, by comparing three selection indexes weighted by economic weights and by the REML/BLUP method, in the ...
Willame dos Santos Candido   +6 more
doaj   +2 more sources

Microbiome−host proteostasis crosstalk—An emerging perspective on mechanisms and interventions toward healthy longevity

open access: yesFEBS Letters, EarlyView.
Proteostasis and the gut microbiota play a key role in shaping host physiology. Microbiota‐derived metabolites, vitamins, and RNA modulate host proteostasis. Findings from model systems, including C. elegans, indicate microbes can either stabilize or disrupt host proteostasis.
Abhishek Anil Dubey, Maria Ermolaeva
wiley   +1 more source

Goodness-of-fit tests in mixed models. [PDF]

open access: yes
Mixed models, with both random and fixed effects, are most often estimated on the assumption that the random effects are normally distributed. In this paper we propose several formal tests of the hypothesis that the random effects and/or errors are ...
Claeskens, Gerda, Hart, Jeffrey D.
core  

Mixed-effects regression models predicting media attention towards COVID-19.

open access: yes, 2022
Mixed-effects regression models predicting media attention towards COVID-19.
Reuben Ng (692015), Yi Wen Tan (7463702)
core   +1 more source

Modelling stem cell differentiation related processes—A practical overview for biologists

open access: yesFEBS Letters, EarlyView.
Stem cell differentiation is complex and difficult to control experimentally. This review introduces suitable computational modelling approaches that can support stem cell research, from mechanistic ODE and abstract models to multiscale and deep learning methods.
Ricco Zeegelaar   +4 more
wiley   +1 more source

S-estimation and a robust conditional Akaike information criterion for linear mixed models. [PDF]

open access: yes
We study estimation and model selection on both the fixed and the random effects in the setting of linear mixed models using outlier robust S-estimators.
Tharmaratnam, Kukatharmini   +1 more
core  

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