The relationship between ethnic and faith communities in the United States and domestic forces relating to a converging and diverging social contract on the one hand, and US foreign, security and military policies in national, regional and global contexts on the other hand, constitutes the key focus of this paper and the ongoing research upon which it is based. Theories related to American ethn...

internationally, one of the most important purposes to establish a national park is to protect a unique ecosystem with all its inclusive biota. therefore, this will facilitate the management and protection of the neighboring lands. unfortunately, this trend was reversed in iranian national parks. during recent decades, the land cover changes in protected areas have led to the decrease of the re...

Existing of racial, ethnic, linguistic and cultural diversity in different countries, has forced their educational system committed to decent response to the phenomenon of diversity of their communities in ways worthy of attention in national educational curriculum. Multicultural education is a kind of approach that responds to cultural diversity in a society and its educational system. T...

national accounts are descriptors. they describe the state of an economy and form the raw material for both assessing its performance and prescribing policy. national accounts embody information essential for economic evaluation. the framework for national accounts currently in use throughout the world, however, suffers from extreme narrowness. vast quantities of information relevant for econom...

National roaming is a form of infrastructure sharing in mobile communication networks, where an operator opens his network for a competitor’s customers and is compensated by a usage based charge. Arguments in favour of national roaming include the reduction of network investments or faster network rollout. This paper examines the effects of national roaming on competition, network investments a...