Results 241 to 250 of about 29,392,562 (280)

An Inulin-Type Atractylodes Macrocephala Polysaccharide Alleviates Weightlessness-Induced Bone Loss in Association with the Nrf2/HO-1 Pathway. [PDF]

Nutrients
Wang J, Wang R, Yang F, Wang W, Shen R, Jiang S, Li Q, Yan Q, Li Y, Diao Y, Wei L.   +10 more
europepmc   +1 more source

Study on Natural Background Levels of Iron and Manganese in Groundwater of Yinchuan Plain. [PDF]

Water Environ Res
Cao C, Li Y, Li X, Ren Y, Wang Y, Lu C, Wang Y.   +6 more
europepmc   +1 more source

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Statistical Inference of Minimum Rank Factor Analysis

Psychometrika, 2002
For any given number of factors, Minimum Rank Factor Analysis yields optimal communalities for an observed covariance matrix in the sense that the unexplained common variance with that number of factors is minimized, subject to the constraint that both the diagonal matrix of unique variances and the observed covariance matrix minus that diagonal matrix
Shapiro, A, Ten Berge, JMF
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On the Statistical Treatment of Residuals in Factor Analysis

Psychometrika, 1962
A method for estimation in factor analysis is presented. The method is based on the assumption that the residual (specific and error) variances are proportional to the reciprocal values of the diagonal elements of the inverted covariance (correlation) matrix. The estimation is performed by a modification of Whittle's least squares technique. The method
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Statistical analysis of nonlinear factor analysis models

British Journal of Mathematical and Statistical Psychology, 1999
This paper presents a Bayesian analysis of a general nonlinear factor analysis model. Both the non‐informative and conjugate prior distributions are considered. A hybrid algorithm that combines the Metropolis‐Hastings algorithm and the Gibbs sampler is implemented to produce direct estimates of the latent factor scores and the structural parameters ...
Hong‐Tu Zhu, Sik‐Yum Lee
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Assessment of the Controlling Factors in Turbo Flotation by Statistical Analysis

Coal Preparation, 2000
TurboFlotation is a new flotation system that has the advantage of large throughput per unit volume and low fluid inventory. The influence of process and design parameters on the performance of the TurboFlotation system as applied to coal flotation has been studied and statistical models developed to predict the performance of the system under various ...
Ofori, P. K., Firth, B. A., Howes, T.
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FACTOR STATISTICAL ANALYSIS OF THE INFLUENCE OF FACTORS ON GENDER INEQUALITY

Экономика и предпринимательство, 2023
В данной статье рассматривается применение факторного статистического анализа для изучения влияния различных факторов на гендерное неравенство. Разработана система показателей, которая помогает определить экономическую, социальную и политическую среду, влияющую на гендерное развитие.
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Multistructure Statistical Model Applied To Factor Analysis

Multivariate Behavioral Research, 1976
A general statistical model for the multivariate analysis of mean and covariance structures is described. Various models, such as those of Bock and Bargmann; Joreskog; and Wiley, Schmidt and Bramble, are special cases. One specialization of the general model produces a class of factor analytic models.
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Statistical distribution of factors and factor images in factor analysis of medical image sequences

Physics in Medicine and Biology, 1998
From a time or energy image sequence, factor analysis of medical image sequences (FAMIS) estimates factors, representing kinetics or spectra in a given physiological compartment, and associated factor images, showing the compartments corresponding to each curve.
I, Buvat, H, Benali, R, Di Paola
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