BACKGROUND Several countries or regions within countries have an effective national asthma strategy resulting in a reduction of the large burden of asthma to individuals and society. There has been no systematic appraisal of the extent of national asthma strategies in the world. METHODS The Global Asthma Network (GAN) undertook an email survey of 276 Principal Investigators of GAN centres in ...

the purpose of this study is designing a model to determine important factors on export performance (ep) in the base of cost leadership strategy for non_ metal mineral industry of iran. in this paper, available approaches in the scope of determinants of ep are identified consist of contingency view, relational and resource based view. in this study, we examine relationship between resources, co...

internationalization and tendency of small and medium enterprises to move into international markets are important and one of the essential factors of economic growth and development in the developing countries. several factors affect the process of internationalization of firms has been studied. the main goal of this study is examination relations between business strategies and internationali...

To survive this fierce competition, by the end of the 90’s, a great amount of restructuring and association between airliners took place. The eruption of the Afghan and Iraqi conflicts and the continuous terrorist threat contributed largely to the demand slowdown. On the other hand, due to the economic instability, the appearance of low cost airliners was stimulated, which immediately absorbed ...

this paper presents a formulation of unit commitment for thermal units integrated with wind and solar energy systems and electrical vehicles with emphasizing on mixed integer nonlinear programming (minlp). the renewable energy resources are included in this model due to their low electricity cost and positive effect on environment. as well as, coordinated charging strategy of electrical vehicle...