Results 51 to 60 of about 333,475 (312)

Relationship between Mental Health and Socio-Economic, Demographic and Environmental Factors in the COVID-19 Lockdown Period—A Multivariate Regression Analysis

Mathematics, 2022
Amongst the several consequences of the COVID-19 pandemic, we should include psychological effects on the population. The mental health consequences of lockdown are affected by several factors. The most important are: the duration of the social isolation
Stefano Bonnini, Michela Borghesi
doaj   +1 more source

ON THE PERFORMANCE OF NONPARAMETRIC SPECIFICATION TESTS IN REGRESSION MODELS [PDF]

, 2013
Some recently developed nonparametric specification tests for regression models are described in a unified way. The common characteristic of these tests is that they are consistent against any alternative hypothesis.
Chesborough HW, Chesbrough H, Chesbrough HW, Chesbrough HW, Department for Business, Enterprise and Regulatory Reform, Department of Enterprise, Trade and Investment, Department of Enterprise, Trade and Investment, Dunning JH, European Commission, Hewitt-Dundas N, Iansiti M, Jarzabkowski P, Monteny F   +12 more
core   +1 more source

Diabetes‐induced vascular calcification is associated with low pyrophosphate and its oral supplementation prevents calcification in diabetic mice

FEBS Open Bio, EarlyView.
Induction of diabetes in three different mouse strains uniformly resulted in an increase in TNAP activity and a reduction in pyrophosphate (PPi) in the circulation. Inhibition of TNAP restored plasma PPi. Diabetes‐induced calcification in the media layer of the aorta was detected only in the Abcc6−/− strain, which is predisposed to ectopic ...
Krisztina Fülöp, Eszter Kozák, Natália Tőkési, Lilian Kocsis, Anikó Kelemen, Zsuzsanna Geszti, Adriána Kutás, Mariann Harangi, Ágnes Diószegi, Zsolt Rapi, József Balla, Olivier Le Saux, András Váradi, Viola Pomozi   +13 more
wiley   +1 more source

Consistency of cross validation for comparing regression procedures

, 2008
Theoretical developments on cross validation (CV) have mainly focused on selecting one among a list of finite-dimensional models (e.g., subset or order selection in linear regression) or selecting a smoothing parameter (e.g., bandwidth for kernel ...
Yang, Yuhong
core   +1 more source

Rates of convergence for the posterior distributions of mixtures of Betas and adaptive nonparametric estimation of the density [PDF]

, 2009
In this paper, we investigate the asymptotic properties of nonparametric Bayesian mixtures of Betas for estimating a smooth density on $[0,1]$. We consider a parametrization of Beta distributions in terms of mean and scale parameters and construct a ...
Judith Rousseau, Universite ́ Paris Dauphine   +1 more
core   +3 more sources

Impact of a senior research thesis on students' perceptions of scientific inquiry in distinct student populations

FEBS Open Bio, EarlyView.
This study addressed how a senior research thesis is perceived by undergraduate students. It assessed students' perception of research skills, epistemological beliefs, and career goals in Biochemistry (science) and BDC (science‐business) students. Completing a thesis improved confidence in research skills, resilience, scientific identity, closed gender‐
Celeste Suart, Haley L. Zubyk, Michelle Ogrodnik, Caitlin E. Mullarkey, Felicia Vulcu   +4 more
wiley   +1 more source

Nonparametric Statistical Thresholding for Sparse Magnetoencephalography Source Reconstructions

Frontiers in Neuroscience, 2012
Uncovering brain activity from MEG data requires solving an ill-posed inverse problem, greatly confounded by noise, interference, and correlated sources.
Julia Parsons Owen, Julia Parsons Owen, Kensuke eSekihara, Srikantan S. Nagarajan, Srikantan S. Nagarajan   +4 more
doaj   +1 more source

Statistical inference for semiparametric varying-coefficient partially linear models with error-prone linear covariates

, 2009
We study semiparametric varying-coefficient partially linear models when some linear covariates are not observed, but ancillary variables are available.
Liang, Hua, Zhou, Yong
core   +1 more source

Bayesian nonparametric analysis of reversible Markov chains [PDF]

, 2013
We introduce a three-parameter random walk with reinforcement, called the $(\theta,\alpha,\beta)$ scheme, which generalizes the linearly edge reinforced random walk to uncountable spaces.
Bacallado, Sergio, Favaro, Stefano, Trippa, Lorenzo   +2 more
core   +2 more sources

KLK7 overexpression promotes an aggressive phenotype and facilitates peritoneal dissemination in colorectal cancer cells

FEBS Open Bio, EarlyView.
KLK7, a tissue kallikrein‐related peptidase, is elevated in advanced colorectal cancer and associated with shorter survival. High KLK7 levels in ascites correlate with peritoneal metastasis. In mice, KLK7 overexpression increases metastasis. In vitro, KLK7 enhances cancer cell proliferation, migration, adhesion, and spheroid formation, driving ...
Yosr Z. Haffani, Tobias Dreyer, Meriem Naim, Rea Lo Dico, Natalia A. Ignatenko, Viktor Magdolen, Dalila Darmoul   +6 more
wiley   +1 more source