Results 11 to 20 of about 166,649 (278)

Toward Better Practice of Covariate Adjustment in Analyzing Randomized Clinical Trials [PDF]

open access: yesJournal of the American Statistical Association, 2020
In randomized clinical trials, adjustments for baseline covariates at both design and analysis stages are highly encouraged by regulatory agencies.
T. Ye, J. Shao, Yanyao Yi, Qingyuan Zhao
semanticscholar   +1 more source

Spillover and crossover effects of exposure to work‐related aggression and adversities: A dyadic diary study

open access: yesAggressive Behavior, Volume 49, Issue 1, Page 85-95, January 2023., 2023
Abstract The past two decades have produced extensive evidence on the manifold and severe outcomes for victims of aggression exposure in the workplace. However, due to the dominating individual‐centered approach, most findings miss a social network perspective.
Alexander Herrmann   +2 more
wiley   +1 more source

A potential biomarker of cognitive impairment: The olfactory dysfunction and its genes expression

open access: yesAnnals of Clinical and Translational Neurology, Volume 9, Issue 12, Page 1884-1897, December 2022., 2022
Abstract Objective Accumulation evidence has reported that olfactory impairment may be an essential clinical marker and predictor of mild cognitive impairment or Alzheimer's disease. Method Participants were enrolled in the population‐based, prospective study in Fuxin county, Liaoning province, China between 2019 and 2021.
Jiayi Song   +11 more
wiley   +1 more source

Covariance-on-Covariance Regression

open access: yes, 2022
A Covariance-on-Covariance regression model is introduced in this manuscript. It is assumed that there exists (at least) a pair of linear projections on outcome covariance matrices and predictor covariance matrices such that a log-linear model links the variances in the projection spaces, as well as additional covariates of interest.
Zhao, Yi, Zhao, Yize
openaire   +2 more sources

Covariance of Covariance Features for Image Classification [PDF]

open access: yesProceedings of International Conference on Multimedia Retrieval, 2014
In this paper we propose a novel image descriptor built by computing the covariance of pixel level features on densely sampled patches and encoding them using their covariance. Appropriate projections to the Euclidean space and feature normalizations are employed in order to provide a strong descriptor usable with linear classifiers. In order to remove
SERRA, GIUSEPPE   +3 more
openaire   +3 more sources

Clinical utility of cerebrospinal fluid biomarkers measured by LUMIPULSE® system

open access: yesAnnals of Clinical and Translational Neurology, Volume 9, Issue 12, Page 1898-1909, December 2022., 2022
Abstract Objectives Cerebrospinal fluid (CSF) biomarkers of Alzheimer's disease (AD) are well‐established in research settings, but their use in routine clinical practice remains a largely unexploited potential. Here, we examined the relationship between CSF biomarkers, measured by a fully automated immunoassay platform, and brain β‐amyloid (Aβ ...
Hisashi Nojima   +9 more
wiley   +1 more source

Effects of pregnancy on neuromyelitis optica spectrum disorder and predictors of related attacks

open access: yesAnnals of Clinical and Translational Neurology, Volume 9, Issue 12, Page 1918-1925, December 2022., 2022
Abstract Objective Our study aimed to investigate the influence of pregnancy on the course of neuromyelitis optica spectrum disorders (NMOSD) and to explore the independent predictors of pregnancy‐related attacks. Methods We performed a retrospective study of patients with NMOSD based on the Wingerchuk 2006 or the revised Wingerchuk 2015 criteria ...
Qin Du   +7 more
wiley   +1 more source

Incorporating Machine Learning Into Factor Mixture Modeling: Identification of Covariate Interactions to Explain Population Heterogeneity

open access: yesMethodology, 2023
Factor mixture modeling (FMM) has been widely adopted in health and behavioral sciences to examine unobserved population heterogeneity. Covariates are often included in FMM as predictors of the latent class membership via multinomial logistic regression ...
Yan Wang, Tonghui Xu, Jiabin Shen
doaj   +1 more source

Characterizing Enterotypes in Human Metagenomics: A Viral Perspective

open access: yesFrontiers in Microbiology, 2021
The diversity and high genomic mutation rates of viral species hinder our understanding of viruses and their contributions to human health. Viral enterotypes as a description of the gut virome, its characteristics have not been thoroughly studied.
Li Song, Lu Zhang, Xiaodong Fang
doaj   +1 more source

Covariance systems [PDF]

open access: yesJournal of Physics A: Mathematical and General, 2001
latex with ams-latex, 23 ...
Naudts, Jan, Kuna, Maciej
openaire   +3 more sources

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