Results 141 to 150 of about 117,319,651 (289)
Local and global rank tests for multivariate varying-coefficient models [PDF]
In a multivariate varying-coefficient model, the response vectors Y are regressed on known functions u(X) of some explanatory variables X and the coefficients in an unknown regression matrix q(Z) depend on another set of explanatory variables Z.
Stephen G. Donald +2 more
core
Advanced Science, EarlyView.In this work, we present a bile‐based memristor hardware framework that enables direct, label‐free identification of cholelithiasis and gallbladder cancer at the device level. The Ag/bile/FTO memristor features stable resistive switching and disease‐specific electrical responses, providing a conceptual foundation for circuits and an integrated ERCP ...
Junming Zhu +17 more
wiley +1 more source
Errors in variables and lending discrimination [PDF]
Consumer credit ; Discrimination in consumer ...
Jed L. DeVaro, Jeffrey M. Lacker
core
Nascent Extracellular Matrix Converts Biomaterial Cues into Cell Fate Decisions
Advanced Science, EarlyView.This study uncovers a tri‐directional interplay among cells, hydrogels, and their nascent extracellular matrix. Hydrogel norbornene modification alters CD44‐mediated cell–hydrogel interactions, which shape nascent matrix deposition, composition, and spatial organization.
Joshua Y. Liu +12 more
wiley +1 more source
A General Framework for Multivariate Analysis with Optimal Scaling: The R Package aspect [PDF]
In a series of papers De Leeuw developed a general framework for multivariate analysis with optimal scaling. The basic idea of optimal scaling is to transform the observed variables (categories) in terms of quantifications. In the approach presented here
Patrick Mair, Jan de Leeuw
core
Gut Microbial Topology and Metabolic Signatures Associated With Colorectal Neoplasia
Advanced Science, EarlyView.The gut microbiota organizes into two robust association patterns linked to colorectal neoplasia risk. Topological shifts in microbial networks are associated with metabolite alterations and may shape host responses during disease development. ABSTRACT Alterations of gut microbial communities impact health.
Kai Song +13 more
wiley +1 more source
Forecasting Aggregated Time Series Variables: A Survey [PDF]
Aggregated times series variables can be forecasted in different ways. For example, they may be forecasted on the basis of the aggregate series or forecasts of disaggregated variables may be obtained first and then these forecasts may be aggregated.
Helmut Luetkepohl
core
International Journal of Assessment Tools in EducationThe present research aims to examine whether the questions in the Program for the International Student Assessment (PISA) 2009 reading literacy instrument display differential item functioning (DIF) among the Turkish, French, and American samples based ...
Nizamettin Koç, Ahmet Yıldırım
doaj
Advanced Science, EarlyView.The mechanobiological basis of atherosclerotic progression and its contribution to spatial and temporal heterogeneity remain incompletely understood. Spatially resolved AFM measurements revealed that plaque formation and distinct regions (cap fibrosis, intimal fibrosis, and lipid‐rich core) exhibit heterogeneous elastic modulus and viscoelastic ...
Yidan Zhou +13 more
wiley +1 more source
Do Surveys Help in Macroeconomic Variables Disaggregation and Estimation? [PDF]
This paper explores the potential of Business Survey data for the estimation and disaggregation of macroeconomic variables at higher frequency. We propose a multivariate approach which is an extension of the Stock and Watson (1991) dynamic factor model ...
Cecilia Frale
core