background accident is an event that occurs suddenly, unexpectedly and inadvertently under unforeseen circumstances. accidents can have individual, social and economical effects 2080 injury cases including labor-law workers were studied in mashhad city, islamic republic of iran. their data were collected from the labor office archive. objectives this study was conducted to determine the effecti...

background trauma, in addition to mortality and disability experienced by an individual, imposes direct and indirect economic and social costs on a community. traditionally, trauma is a disease of young and middle age adults, an age group which is known to be the most dynamic and economically productive of the community. increasing our knowledge concerning the etiology and patterns of trauma se...

the present paper investigates the effect of production factors, including technology, physical capital and labour on the energy consumption intensity of iran. for this purpose, time series data during the period of (1974-2007) have been analyzed within cobb–douglas production function framework. the results of the study indicate that the technology and the physical capital have caused the aver...