social development undoubtedly requires people participation in different domains. it seems without participation, we cannot achieve a people-centered, inclusive and sustainable social development. in the social development process, all citizens with various ethnic and religious interests are able to affect on all the social phenomena and variables, based on their competencies and mental capaci...

Altruistic punishment has been shown to invade when rare if individuals are allowed to opt out of cooperative ventures. Individuals that opt out do not contribute to the common enterprise or derive benefits from it. This result is potentially significant because it offers an explanation for the origin of large-scale cooperation in one-shot interactions among unrelated individuals. Here, we show...

The aim of this paper is investigating the impacts of residents empowering in physical and environmental improvements in informal settlements. This place has some problems such as safety, health and environmental that Managers and municipal authorities should take action to fix them. In this regard The NGOs as an intermediary between the people and town officials could have a significant role i...

Athlete-driven informal sport play represents an important context for athlete development. However, in contrast to coach-driven organized sport, little is known about the interpersonal processes driving development in this context. The present study was an exploratory descriptive analysis of the interactive peer behaviors occurring in an informal sport play setting and their relationship to at...

In games that model cooperative dilemmas, if players are able to choose with whom they will play, they will seek out cooperative partners while escaping free riders. In this paper we recast the problem of selecting with whom to play as a problem of finding the right combination of players. With this approach, we present a model suitable to any n-player game. The model is adaptive and we present...