Recent research has considered the “benefits of leisure” from psychological, physiological , and social perspectives. Such studies, while valuable, have overlooked an even more fundamental benef i t , that i s , the poss ible contribution of leisure to human adaptation. The concept of adaptation holds that those who possess environmentally favored forms, whether biological, behavioral, or cultu...

A key characteristic of the Internet is its global diffusion, that shows a rapid growth of the number of hosts and international links around the world. The diffusion of the Internet has been accompanied by serious performance problems, such as long response times, server overload and network congestion. Caching has been used as a standard solution to minimize the problem. In this paper, we ana...

This study endeavors to complement the theory of anthropogenesis worked out by Michael Tomasello and his colleagues with a theory of cultural development, entitled CCCD (communicative and cognitive cultural development) theory. In the paper both the structure of this theory and its theoretical underpinnings and empirical evidence are outlined. Four levels of cognitive development in CCCD are ma...

سابقه و هدف: با افزایش بی­رویه جمعیت در شهر‌ها دفع ایمن پسماند یک مشکل اساسی برای این کلان­ شهرها محسوب ‌می‌شود. مسئله دفن محل آن انتهای قرار دارد. ‌معمول‌ترین روش جوامع شهری کشور ایران سایر کشورهای جهان همین ارزیابی اثرات زیست­ محیطی کاهش منفی بسیار مهم است. از رو مطالعه ‌محل زباله ارومیه ریام مورد گرفت.مواد روش‌ها: استفاده به منظور اطلاعاتی صورت میدانی شهرستان جمع‌آوری شد. سپس تاثیر فعالیت‌ها...