Results 51 to 60 of about 4,567,732 (255)
A multivariate generalized independent factor GARCH model with an application to financial stock returns [PDF]
, 2008 We propose a new multivariate factor GARCH model, the GICA-GARCH model , where the data are assumed to be generated by a set of independent components (ICs).
García-Ferrer, Antonio +2 more
core +1 more source
Diversity, 2022 A study was conducted to ascertain the taxonomic validity of the endangered taxon Echinocactus horizonthalonius var. nicholii and whether there may be other groups of populations worthy of subspecies status within the range of the species.
Marc A. Baker
doaj +1 more source
Water Science, 2016 This study investigates the groundwater quality in the Faridpur district of central Bangladesh based on preselected 60 sample points. Water evaluation indices and a number of statistical approaches such as multivariate statistics and geostatistics are ...
Md. Bodrud-Doza +5 more
semanticscholar +1 more source
The Multivariate Order Statistics for Exponential and Weibull Distributions
, 2014 In this paper we have derived the distribution of multivariate order statistics for multivariate exponential & multivariate weibull distribution.
Hafeez, Mariyam +2 more
core +1 more source
FEBS Open Bio, EarlyView.NMR metabolomics revealed concentration‐dependent metabolic perturbations in HepG2 cells exposed to H2O2. Rifampicin pretreatment enhanced metabolic competence, attenuated toxin‐induced alterations and produced metabolite profiles more consistent with human liver physiology, supporting the use of CYP450‐induced HepG2 models for improved in vitro ...
Maren Jinks +4 more
wiley +1 more source
Estimating factor models for multivariate volatilities : an innovation expansion method [PDF]
, 2010 We introduce an innovation expansion method for estimation of factor models for conditional variance (volatility) of a multivariate time series. We estimate the factor loading space and the number of factors by a stepwise optimization algorithm on ...
Yao, Qiwei +2 more
core +2 more sources
Multi-Period Multivariate Risk Measures with Extensions to Multivariate Risk Statistics
AxiomsIn this paper, we investigate multi-period multivariate risk measures as well as multivariate risk statistics. To be precise, by proposing new sets of axioms, we introduce two new classes of multi-period coherent and convex multivariate risk measures ...
Linhai Wei, Yijun Hu
doaj +1 more source
Urban Landscape Structure of a Fast-Growing African City: The Case of Niamey (Niger)
Urban Science, 2019 Combining multivariable statistics and geostatistics with landscape metrics, we attempted to quantify the spatial pattern of urbanization in the city of Niamey, Niger.
Jean-Pierre Rossi, Gauthier Dobigny
doaj +1 more source
Evaluating the effect of γ‐oryzanol on MASLD pathology using a medaka fish model
FEBS Open Bio, EarlyView.This study explores a liver disease called MASLD, which is increasing worldwide and can lead to serious damage. Researchers used medaka fish instead of rodents to test a food compound, γ‐oryzanol. Fish fed this compound had less liver fat and healthier gut bacteria.
Yukako Ito +7 more
wiley +1 more source
Comput. Math. Methods Medicine, 2019 In this study, we investigate how Wilks' lambda, Pillai's trace, Hotelling's trace, and Roy's largest root test statistics can be affected when the normal and homogeneous variance assumptions of the MANOVA method are violated.
C. Ateş +3 more
semanticscholar +1 more source