BACKGROUND This study was undertaken to determine if alcohol use is associated with sexual risk taking among human immunodeficiency virus (HIV)-infected persons. METHODS Cross-sectional interviews of 262 HIV-infected patients in the Brown University AIDS Program were performed. Factors associated with any sexual activity, unsafe sexual activity, and a 4-fold typology of sexual risk were exami...

In line with the goal of limiting health risk behaviors in adolescence, a growing literature investigates whether individual differences in functional brain responses can be related to vulnerability to engage in risky decision-making. We review this body of work, investigate when and in what way findings converge, and provide best practice recommendations. We identified 23 studies that examined...

Most people's actions serve goals that, defined abstractly enough, are quite similar to one another. The authors thus proposed, and found, that construing action in abstract (vs. concrete) terms relates to perceiving greater similarity among persons both within and across different social groups (Studies 1-3). By fostering perspective taking, viewing action abstractly also related to empathizin...

Lasers have caused revolutionary changes in many fields of science and technology. Since 1960, six orders of magnitude, from 10 to 10 seconds, have been added to time-resolved observation of fast phenomena, which makes ultrafast research grows rapidly among materials science, biology, and chemistry. The use of these ultrashort high-power pulses went hand-in-hand with their development and alrea...

An increasing number of studies in a wide range of natural systems have investigated how pulses of resource availability influence ecological processes at individual, population, and community levels. Taken together, these studies suggest that some common processes may underlie pulsed resource dynamics in a wide diversity of systems. Developing a common framework of terms and concepts for the s...

We present previously undescribed spatial group patterns that emerge in a one-dimensional hyperbolic model for animal group formation and movement. The patterns result from the assumption that the interactions governing movement depend not only on distance between conspecifics, but also on how individuals receive information about their neighbors and the amount of information received. Some of ...

Effective use of public health law can be a powerful tool to advance the mission of public health departments to protect and promote the health of the population. However, there is little known about the way that public health officials think about law, use law, and/or interact with their legal counsel. The purpose of this paper is to examine some of the beliefs and barriers facing public healt...

Religiosity and participation in religious activities have been linked with decreased risky behavior. In the current research, we hypothesized that exposure to the concept of God can actually increase people's willingness to engage in certain types of risks. Across seven studies, reminders of God increased risk taking in nonmoral domains. This effect was mediated by the perceived danger of a ri...