Cyberspace refers to the virtual world that is wired by high-speed telecommunications networks connecting people, computers and places. In has been well recognized that cyberspace is quite different from the physical world in the sense that traditional concepts of geography, such as 'nearby', 'distance', and 'connectivity', no longer apply. The relationship between cyberspace and the physical s...

Why and how do young people adopt and use information and communication technology? Based on social constructionist theory and empirical research we propose a model of ‘technology appropriation’. When young people are faced with a new technology we have observed three outcomes: non-appropriation, appropriation and disappropriation. How the technology is affected by, and in turn affects, young p...

Whether the mate sampling and choice performed by females in nature influences offspring performance is a controversial issue in theory and an open empirical question. Pronghorn (Antilocapra americana) females engage in an obvious and energetically expensive mate sampling process to identify vigorous males. Although individual females sample independently, their choices converge on a small prop...

Most men marry younger women. This has been attributed to men selecting young women due to their high reproductive value and women preferring older men due to their wealth and high social status. Such mate preferences have been suggested to be adaptive, but despite a flourishing number of studies on the mate selection patterns themselves, little is still known of their actual fitness consequenc...

The purpose of this article is to present the issue Internet in everyday lives young people. a review and synthesis findings ten years research on people’s use Internet. This also provides an overview conducted primarily foreign institutions. query was based scientific databases available online (EBSCO, Google Scholar). According several studies, people mostly social media portray themselves re...

marriage and mate selection is one of the most important events in the social life which has been observed in various forms in different eras and societies. to achieve this, using qualitative content analysis, all marriages mentioned in the shahnameh were analyzed. the results show that the kings and heroes as the class of iranian society in the shahnameh, for finding a matching partner, person...

Learned mate preferences may play an important role in speciation. Sexual imprinting is a process whereby mate preferences are a€ected by learning at a very young age, usually using a parent as the model. We suggest that while the origins of learning appear to lie in the advantages of individual recognition, sexual imprinting results from selection for recognition of conspeci®cs. This is becaus...

It is suggested that characters which develop through mate preference confer handicaps on the selected individuals in their survival. These handicaps are of use to the selecting sex since they test the quality of the mate. The size of characters selected in this way serve as marks of quality. The understanding that a handicap, which tests for quality, can evolve as a consequence of its advantag...

Background: Theoretical studies suggest that direct and indirect selection have the potential to cause substantial evolutionary change in female mate choice. Similarly, sexual selection is considered a strong force in the evolution of male attractiveness and the exaggeration of secondary sexual traits. Few studies have, however, directly tested how female mate choice and male attractiveness res...