Results 91 to 100 of about 1,087,600 (300)

Board Gender Diversity and Environmental Activity in Family Firms: The Role of Female Directors

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT This study examines how female board representation relates to environmental activities in family firms, distinguishing family from nonfamily female directors and considering the curvilinear shape of the relationship and the role of industry. Drawing on upper echelons theory and socioemotional wealth, we argue that women's influence depends on
Iván Alfredo Salazar Morales   +2 more
wiley   +1 more source

Robustness of Poisson Mixture models in identifying risk factors for Under-Five mortality in Nigeria

open access: yesAnnals of Health Research, 2018
Background: Estimates of Under-Five mortality (U5M) have taken advantage of indirect methods but U5M risk factors have been identified using fixed statistical models with little considerations for the potentials of mixture models.
Kolawole Oritogun, Elijah Bamgboye
doaj   +1 more source

Copula‐based joint modelling of emergency department visits with time‐varying dependence

open access: yesCanadian Journal of Statistics, EarlyView.
Abstract Jointly modelling multiple correlated count time series is essential in health services research, where outcomes like emergency visits for mental health and substance use often evolve together. Ignoring these dependencies can obscure meaningful trends and limit the effectiveness of policy evaluation.
Guanjie Lyu, Cindy Feng, Lihui Liu
wiley   +1 more source

Bayesian Neural Networks with Regularization for Sparse Zero-Inflated Data Modeling

open access: yesInformation
Zero inflation is pervasive across text mining, event log, and sensor analytics, and it often degrades the predictive performance of analytical models. Classical approaches, most notably the zero-inflated Poisson (ZIP) and zero-inflated negative binomial
Sunghae Jun
doaj   +1 more source

Robustness of zero-augmented models over generalized linear models in analysing fertility data in Nigeria

open access: yesBMC Research Notes, 2019
Objective Fertility is a count data usually rightly skewed and exhibiting large number of zeros than the distributional assumption of the generalized linear models (GLMs).
Yusuf Olushola Kareem   +4 more
doaj   +1 more source

Multivariate zero-inflated Poisson regression coefficient estimates for frequency of condom-use in Canada 2018.

open access: yes, 2020
Multivariate zero-inflated Poisson regression coefficient estimates for frequency of condom-use in Canada 2018.
Michelle Dion (8474022)   +5 more
core   +1 more source

Irregular visits in longitudinal studies: Comparing inverse intensity of visit weighting and imputation in a causal analysis of antidepressant therapeutic treatment

open access: yesCanadian Journal of Statistics, EarlyView.
Abstract Irregular observation times are common in longitudinal observational studies and can affect causal inferences. We use data from electronic health records of Kaiser Permanente Washington patients in the United States who initiated an antidepressant medication between 2008 and 2018, with a confirming diagnosis of depression. We are interested in
Janie Coulombe   +2 more
wiley   +1 more source

Zero inflated negative binomial-generalized exponential distributionand its applications [PDF]

open access: yesSongklanakarin Journal of Science and Technology (SJST), 2014
In this paper, we propose a new zero inflated distribution, namely, the zero inflated negative binomial-generalized exponential (ZINB-GE) distribution. The new distribution is used for count data with extra zeros and is an alternative for data analysis
Sirinapa Aryuyuen   +2 more
doaj  

A Geometric Characterization of Steady Laminar Flow

open access: yesCommunications on Pure and Applied Mathematics, EarlyView.
ABSTRACT We study the steady states of the Euler equations on the periodic channel or annulus. We show that if these flows are laminar (layered by closed non‐contractible streamlines which foliate the domain), then they must be either parallel or circular flows.
Theodore D. Drivas, Marc Nualart
wiley   +1 more source

The Association Between Socio-Economic Characteristics and the Frequency of Wife Assault [PDF]

open access: yes
We estimate the impact of economic status on the frequency of domestic violence using several models and a large random sample. Tauchen, Witte and Long (1991) (TWL) find that both female and male income have a significant impact on the frequency of ...
JoAnn Kingston-Riechers
core  

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