introduction: ramadan is a time when muslims are expected to be calm and peaceful in daily life both mentally and physiologically. some people believe that they should try to don’t have be involved in bad and deviant behaviors in ramadan. as increasing social safety and reducing crime in society are the most important concerns of the authorities , psychologists, sociologists and governments, th...

Background: Dust is one of the most important forms of air pollution. Pursuant to Article 21 of the declaration on the principle of non-harmful use of land, states are responsible, in accordance with the charter of the United Nations and the principles of international law, for arranging for activities within their competence or oversight to cause harm to the environment of other countries or r...

Most tobacco control laws were written to address the scourge of smoking--particularly smoking cigarettes. As a result, these laws frequently exclude non-cigarette tobacco products, which are becoming more prevalent on the market. These regulatory gaps jeopardize public health by increasing the possibility that these products will be used--particularly by minors and young adults. This article e...

Abstract:Non-oil exports are increased in the measures taken, to reduce Iran's dependence on oil revenues. Creating new business areas in different sectors and unused capacities are fac-tors that make it imperative to pay attention to the development of non-oil exports. Ex-port growth is the key to economic recovery for governments. Among non-oil exports, in many countries of the world th...

This paper constructs a theoretical model, in which transportation costs between two locations depend on cumulative infrastructure investment and governments allocate infrastructure spending over continuous space, thereby affecting the geographical pattern of transportation costs. Modelling international trade, we assume that governments set their infrastructure investment schedules in a non-co...