We report the discovery of a population of Wolf-Rayet stars in the young Galactic open cluster Westerlund 1. In an incomplete shallow spectro-scopic survey, we find six nitrogen-rich (WN) and five carbon-rich (WC) WR stars. We also confirm the presence of a large population of yellow supergiants, some of which are candidate hypergiants. Given this population, Westerlund 1 is likely to be one of...

To investigate the recurrence pattern and subsequent survival outcomes in young breast cancer population, 483 young patients (≤ 35) and 739 elderly patients (≥ 65), who received mastectomy or breast-conserving surgery from 2008 to 2012, were included in this study. The young population presented with a higher rate of pathologic tumor stage (P < 0.001), positive pathologic lymph node (P < 0.001)...

Background & Aims: Irritable bowel syndrome (IBS) is the most prevalent gastrointestinal functional disorder, characterized by non-specific symptoms such as abdominal pain and discomfort, altered bowel habit, and bloating. Its prevalence varies between 3.5% and 30% in the world. This study was conducted in order to determine the prevalence of IBS in the adult population of Kerman, Iran, which i...

In this article, a testing procedure based on computational approach testis proposed for the equality of coe¢ cients of variation in k normal populations. We compare this procedure to some of the existing tests; the likelihood ratio, modi…ed Bennett’s, score, generalized p-value tests in terms of the estimated type I error rates and powers by using Monte Carlo simulation. Furthermore, applicati...

This study focuses on polydrug use among American college students. Based on a secondary analysis of data originally collected in 1993 from a large representative sample of 4-year college students, (N = 17,592), this analysis compares four subgroups of young adult drug users: exclusive binge drinkers, users of illicit drugs, those with both heavy use of alcohol and illegal drugs (polydrug users...

This paper uses the neoclassical growth model to examine the extent to which a tax cut pays for itself through higher economic growth. The model yields simple expressions for the steady-state feedback e¤ect of a tax cut. The feedback is surprisingly large: for standard parameter values, half of a capital tax cut is self-…nancing. The paper considers various generalizations of the basic model, i...

Purpose As CAM use continues to grow a new generation of CAM consumers are including CAM as part of their repertoire of activities to promote their health and wellbeing. Yet little is known about how CAM is perceived to fit in with other health-related activities in this population. Understanding how young adult CAM consumers integrate CAM into their lifestyle can help guide policy and practice...

Population health research on racial discrimination is hampered by a paucity of psychometrically validated instruments that can be feasibly used in large-scale studies. We therefore sought to investigate the validity and reliability of a short self-report instrument, the "Experiences of Discrimination" (EOD) measure, based on a prior instrument used in the Coronary Artery Risk Development in Yo...

BACKGROUND Recent estimates suggest that high body mass index (BMI), smoking, high blood pressure (BP) and physical inactivity are leading risk factors for the overall burden of disease in Australia. The aim was to examine the population attributable risk (PAR) of heart disease for each of these risk factors, across the adult lifespan in Australian women. METHODS PARs were estimated using rel...

BACKGROUND While population-based seroprevalence studies of herpes simplex virus type 1 (HSV-1) and type 2 (HSV-2) are widespread, seroincidence studies are largely limited to select or high-risk populations. The US military offers a potential population to derive national seroincidence rate estimates for young adults (ages 18-29). METHODS We used banked, longitudinal serum specimens collecte...