Environmental factors play a crucial role in influencing sexual selection in insects and the evolution of their mating systems. Although it has been reported that sexual selection in insects may change in response to varying environments, the reason for these changes remains poorly understood. Here, we focus on the mate selection process of a ladybird, Cryptolaemus montrouzieri, when experienci...

Sexual selection of high-quality mates can conflict with species recognition if traits that govern intraspecific mate preferences also influence interspecific recognition. This conflict might be resolved by developmental plasticity and learned mate preferences, which could drive preference divergence in populations that differ in local species composition. We integrate field and laboratory expe...

The purpose of this study is to determine the youth generation leisure time as an important factor in reducing their inclination toward drug use in North Khorasan Province, by comparing drug addicted youth in addiction treatment centers of Social Welfare Organization with other non-addicted youth. This was a survey study and a questionnaire was used for data collection. The data was analyzed by...

Pairs of middle-aged twins and their spouses provided data on 74 mainly psychological variables. Neither spousal similarity nor idiosyncratic criteria could account for specific mate selection in these 738 couples. Of the twins (and their spouses), 547 independently rated their initial attraction to their twin's mate (or to their spouse's twin): Findings suggest that characteristics both of the...

Objective: This study was conducted to compare marital satisfaction among married nurses with three different mate selection styles. Methods: This study is descriptive ex post facto. A total of 222 married nurses were selected using random sampling method from two educational hospitals affiliated to Jundishapur University of Medical Sciences and four private hospitals of Ahvaz, Iran. They comp...

Darwin proposed an explicitly aesthetic theory of sexual selection in which he described mate preferences as a 'taste for the beautiful', an 'aesthetic capacity', etc. These statements were not merely colourful Victorian mannerisms, but explicit expressions of Darwin's hypothesis that mate preferences can evolve for arbitrarily attractive traits that do not provide any additional benefits to ma...

To explain how individuals' self-perceived long-term mate value influences their mate preference and mate choice, two hypotheses have been presented, which are "potentials-attract" and "likes-attract", respectively. The potentials-attract means that people choose mates matched with their sex-specific traits indicating reproductive potentials; and the likes-attract means that people choose mates...

Our understanding of strategic preferences in cyberspace rests on the material and factors that shape state behavior. This, however, is derived from actions established cyber powers. Given resources required to effectively operate this environment repeated interactions form boundaries accepted behavior, literature does not adequately explain emergence among novice actors. The article posits the...

Background: Given the appropriateness of cyberspace and its interconnectedness, each country is expected to minimize the possibility of harmful actions by securing and continuously monitoring the Internet and the virtual world. Of course, part of this goal will be achieved through the adoption of appropriate national laws and, in part, through proper education of citizens and the development of...