conclusions the results of this study suggested that parental monitoring and affiliation with deviant peers largely explained sexual risk taking among adolescents. therefore, prevention efforts aimed at reducing risky sex should compose of these factors. in fact, the results suggested that earlier prevention efforts may be warranted. results according to the results, about one-fifth of subjects...

Background: Despite the fact that high-risk behaviors lead to adverse physical, psychological, and sociological consequences, less attention has been paid to identifying related correlated factors. The aim of this study was to investigate the mediating role of alexithymia in the relationship between defense mechanisms and high-risk behaviors among adolescents in Zahedan. Method: In academic ye...

We derive dual characterizations of two notions of weak time consistency for concave valuations, which are convex risk measures under a positive sign convention. Combined with a suitable risk aversion property, these notions are shown to amount to three simple rules for not necessarily minimal representations, describing precisely which features of a valuation determine its unique consistent up...

background: young people engage in risky behaviors unintentionally and these behaviors might be reduced or inhibited by preventative behaviors. although adolescents' risky behaviors are known as unplanned or unintentional, preventative behaviors are intentional. the aim of the present study was to assess students’ behavior intentions to avoid drug abuse. methods: this study was a cross sectio...

we introduce the notions of t-dual rickart and strongly t-dual rickart modules. we provide several characterizations and investigate properties of each of these concepts. it is shown that every free (resp. finitely generated free) $r$-module is t-dual rickart if and only if $overline{z}^2(r)$ is a  direct summand of $r$ and end$(overline{z}^2(r))$ is a semisimple (resp. regular) ring. it is sho...

OBJECTIVE To examine adolescents' peer crowd affiliation and its linkages with health-risk behaviors, their friends' health-risk behaviors, the presence of close friends in the same peer crowd, and adolescents' social acceptance. METHODS We interviewed 250 high school students and identified six categories: popular, jocks, brains, burnouts, nonconformists, or average/other. Adolescents also r...