نتایج جستجو برای: social evolution
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Social life is one of the most critical factors of the evolution of the behavior of non-human primates and humans. Several factors, such as an increase in brain size, adaptive modules, and grooming, are related to the complexities of social groups. Although some scientists have mentioned foraging as a rival hypothesis for the evolution of behavior, in this research, we tried to investigate the ...
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ibn-khaldun,s social change theory has been often classified as cyclic theoty of social changes that has three stages includes in generation, growth and progress and ultimately regressive and decadence. but, what is inferred by rethink in text of ibn-khaldun,s moghaddame, are two different courses,as interrelated to each other, “civilizational evolution” and “cyclic changes of state.avoiding ma...
nowadays, different methods are used to solve optimization problems which ,one of the newest is bco method that are inspired by the nature and derived from the social life of bees of these methods can be noted that bco is derived from the social life of bees. we use in this paper fuzzy logic for bee‟s decision stage. at the end, we solve two different problem that have already been solved by es...
abstract because of the many geopolitical, geo economical and geo strategically potentials and communicational capabilities of eco region, members can expand the convergence and the integration in base of this organization that have important impact on members development and expanding peace in international and regional level. based on quality analyzing of library findings and experts interv...
This paper presents an evolutionary model to explain the widespread diffusion of lifelong monogamous families. The essential condition, unique to humans, is the overlap of children of different ages. Under this condition, together with the salience of paternal investment and fatherhood uncertainty, monogamy attains a greater survivorship than serial monogamy and polygyny. This result is robust ...
this research has been taken among the students of high school in karaj city during the years 1391 and 1392. this is a survey research and data gathering is through questionnaires. studying the “an analysis of students’ tendency toward non-native reference groups in karaj”. the questionnaire was distributed among 260 of these students who were chosen through multi step cluster sampling. conside...
The Evolution of Income-Related Health Inequalities in Switzerland over Time This paper presents new evidence on income-related health inequality and its development over time in Switzerland. We employ the methods lined out in van Doorslaer and Jones (2003) and van Doorslaer and Koolman (2004) measuring health using an interval regression approach to compute concentration indices and decomposin...
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