background: existence or non-existence of adverse selection in insurance market is one of the important cases that have always been considered by insurers. adverse selection is one of the consequences of asymmetric information. theory of adverse selection states that high-risk individuals demand the insurance service more than low risk individuals do. methods: the presence of adverse selection ...

AIMS This retrospective analysis sought to develop and validate a model using the measured diagnostic variables in cardiac resynchronization therapy (CRT) devices to predict mortality. METHODS AND RESULTS Data used in this analysis came from two CRT studies: Cardiac Resynchronization Therapy Registry Evaluating Patient Response with RENEWAL Family Devices (CRT RENEWAL) (n = 436) and Heart Fai...

Statistical diagnostic and correction of a chemistry-transport model for the prediction of total column ozone S. Guillas, G. C. Tiao, D. J. Wuebbles, and A. Zubrow School of Mathematics, Georgia Institute of Technology, Atlanta, Georgia, USA Graduate School of Business, University of Chicago, Chicago, Illinois, USA Department of Atmospheric Sciences, University of Illinois, Urbana, Illinois, US...

canola production is an important alternative for agricultural policy-makers in iran to reduce dependency on the imported vegetable oils. nevertheless, the canola planted area is only increasing at a slow pace, indicating a low willingness-to-accept of farmers. the general aim of this study was to determine the factors influencing the canola adoption in the kermanshah province in western iran. ...

The reference method for immunoglobulin G (IgG) avidity determination includes reagent-consuming serum titration. Aiming at better IgG avidity diagnostics, we applied a logistic model for the reproduction of antibody titration curves. This method was tested with well-characterized serum panels for cytomegalovirus, Epstein-Barr virus, rubella virus, parvovirus B19, and Toxoplasma gondii. This ap...

Logistic regression with binary and multinomial outcomes is commonly used, and researchers have long searched for an interpretable measure of the strength of a particular logistic model. This article describes the large sample properties of some pseudo-R statistics for assessing the predictive strength of the logistic regression model. We present theoretical results regarding the convergence an...

When response outcomes are continuous error terms in models are normally distributed and a standard normal distribution function is adequate. The logistic distribution function which is very similar to the normal distribution function is required when the response variable is binary. Parameters of a logistic response function are often estimated using the method of maximum likelihood (ML). One ...

this study was carried out to evaluate the ekiti state social security scheme (essss) in nigeria. specifically, the study estimated the food security status of the beneficiaries and non beneficiaries of the scheme, assessed the effect of the social security scheme on households’ food security status, and identified the constraints to the implementation of the scheme in the state. a three stage ...