background: this paper aims to examine the reproductive health and behaviors which might expose young people at risks of stis/hiv and potential correlates of such behaviors among female college students in tehran. methods: this paper focuses on the study conducted on a sample of 1743 female undergraduate students in four multidisciplinary universities in tehran during 2005-2006 using a two-stag...

Mate choice by phenotype matching, whereby individuals prefer a mate whose phenotype is similar to their own, should facilitate speciation with gene flow. This is because the genes that control mate signal (the phenotype being matched) also determine the preferred mate signal ("mate preference"). Speciation is made even easier if phenotype matching is based on a trait under divergent natural se...

If mating with an inferior male has high fitness costs, females may try to avoid mating with these males. Alternatively, females may accept an inferior male to ensure they have obtained at least one mate, and/or to avoid the costs of resisting these males. We hypothesized that females compensate for mating with an inferior male by remating. We tested this hypothesis by measuring remating propen...

While researchers have long examined the dating and mate selection patterns among young adults, the vast majority have utilized Western samples. In order to further our understanding of the changing nature of dating behaviors and attitudes, this study examines a sample of young Chinese adults and focuses upon the gender differences therein. Using a foundation of social exchange theory, the anal...

Data from 33 lesbian and 54 gay male cohabiting couples were used to examine the relation between parental identification and mate selection. Theories of mate selection and parental identification are reviewed. Effects of gender and sexual orientation as they relate to parental identification and mate selection in gay male and lesbian couples also are reviewed. The results demonstrate significa...

BACKGROUND Chlamydia infection is the most common notifiable sexually transmitted infection (STI) in Australia and mostly affects young people (15 - 25 years). This paper presents baseline data from a randomised controlled trial that aimed to increase chlamydia testing among sexually active young people. The objectives were to identify associations between sexual behaviour, substance use and ST...

Although a number of studies have explored the ways that men and women romantically attract mates, almost no research exists on the special tactics people use when already in a relationship and trying to attract someone new--a process known as mate poaching enticement. In Study 1, the authors investigated the tactics people use to entice others into making mate poaching attempts. Enticement tac...

In the Genetic Algorithm (GA) literature, many models focus on problems where each individual’s fitness is independent of others (or implicitly defined by others). In this paper, a framework is introduced for studying mate selection in the context of GA. The objective is to model interdependent fitnesses of population individuals by allowing them to search for mates. The resulting GA thus forms...

Telomere length is related to aging in many eukaryotes and the rate of telomere attrition has been suggested to reflect individual genetic quality. Telomere length could thus have implications for mate choice. We investigated telomere length variation in bluethroat Luscinia svecica families with mixed paternity, including social parents, extra-pair fathers and nestlings, testing whether telomer...