In presence of an uncertain prior information about the slope parameter, the estimation of the intercept of a simple regression model with a multivariate Studentt error distribution is investigated. The unrestricted, restricted and preliminary test maximum likelihood estimators are defined. The expressions for the bias and the mean square error of the three estimators are provided and the relat...

PURPOSE To investigate prognostic impact of chemoradiotherapy-induced hemoglobin (Hb) decrease on treatment outcomes of endemic nasopharyngeal carcinoma (NPC). MATERIALS AND METHODS Eight hundred and fifteen non-metastatic NPC, receiving neoadjuvant chemotherapy followed by radiotherapy (NACT+RT group) or concomitant chemoradiotherapy (CCRT group), were enrolled in this study, who were regrou...

The purpose of this research was to investigate the effectiveness of eclectic model based on acceptance and commitment therapy (ACT) and metacognitive therapy (MCT) on symptoms in patient with pure generalized anxiety disorder. The research method was clinical experimentation with pre-posttest and control group. Statistic community was all of the men and women patients that suffered from pure g...

Providers are central to effective implementation of HIV pre-exposure prophylaxis (PrEP). Primary care providers (PCP) and infectious disease physicians (ID) in the US Air Force (USAF) participated in a cross-sectional survey regarding knowledge, attitudes, and beliefs toward HIV PrEP. Characteristics associated with PrEP knowledge were assessed in univariate and multivariate analyses.Among 403...

OBJECTIVE To study the association between microalbuminuria and development of preeclampsia and preterm delivery in pregnant women with type 1 diabetes. RESEARCH DESIGN AND METHODS This was a population-based prospective study in 846 normoalbuminuric or microalbuminuric women with type 1 diabetes without antihypertensive treatment in early pregnancy. Data were collected prospectively by one t...

In this paper, a new stage structured prey-predator model with linear functional response is proposed and studied. The stages for prey have been considered. The proposed mathematical model consists of three nonlinear ordinary differential equations to describe the interaction among juvenile prey, adult prey and predator populations. The model is analyzed by using linear stability analysis to ob...