BACKGROUND Prior studies have reported relatively low job satisfaction for general internists. We used data from a large US physician survey to assess correlates of satisfaction of general internists. METHODS The Physician Worklife Survey was mailed to a national random stratified sample of 5704 US physicians. General internists were assessed for their satisfaction, training, patient mix, wor...

Background: The association of HP and insulin resistance degree (IR) has not been evaluated in the diabetic patients so far. In this study, we evaluated the association between HP seropositivity and the homeostatic model assessment for insulin resistance (HOMA-IR) in diabetic patients. Methods: In this study, 211 diabetic patients admitted to the endocrinology clinic of Shahid Beheshti Hospita...

The health and lifespan of entrepreneurs not only affect their private decisions such as consumption and savings, assets transfer, life insurance and labor supply, but also their business decisions. Based on a large longitudinal data set of individuals in the United States, we find in our sample of business owners that they expect to live much longer (7.47% higher) than non business owners. Mor...

The effect of sexual selection on extinction risk remains unclear. In theory, sexual selection can lead to both increase and decrease extinction probability depending on the ecology of the study system. Thus, combining different groups might obscure patterns that can be found in groups that share similar ecological features. Using phylogenetic comparative analysis, we studied sexual plumage dim...