In birds, carotenoid-based plumage coloration is more dependent on physical condition and foraging abilities and less constrained developmentally than is melanin-based coloration. Thus, female mate choice for honest signals should result in more intense sexual selection on carotenoidthan on melanin-based plumage coloration. Using variation in sexual dimorphism as an indirect measure of the inte...

Childhood neglect and poverty often co-occur and both have been linked to poor physical health outcomes. In addition, Blacks have higher rates of childhood poverty and tend to have worse health than Whites. This paper examines the unique and interacting effects of childhood neglect, race, and family and neighborhood poverty on adult physical health outcomes. This prospective cohort design study...

three millions people die related to smoking every year. twelve million smokers are reported in iran. the studies show that smoking is an important factor which causes cardio – vascular and respiratory diseases. its role in cancer diseases is strongly confirmed. the social and economical effects of smoking also are considerable. in this study 192 preuniversity students in bahaman city (province...

Cyberloafinga form of counter-productive work behaviour has been found to be affected by several personality and contextual factors. An important relationship that has not been adequately explored in the past is how cyberloafing behaviours could be conceptualized as a failure to self-regulate. In this paper, we examine the impact of this lack self-regulation on cyberloafing. We also examine the...

People can be characterized by their demographic information and personality traits. Characterizing people accurately can help predict their preferences, and aid recommendations and advertising. A growing number of studies infer peoples characteristics from behavioral data. However, context factors make behavioral data noisy, making these data harder to use for predictive analytics. In this pap...