In 2000, wages of full time full year workers were over 30 percent higher in metropolitan areas of over 1.5 million people than rural areas. The monotonic relationship between wages and city size is robust to controls for age, schooling and labor market experience. In this paper, we decompose the city size wage gap into various components. We propose a labor market search model that incorporate...

BACKGROUND AND OBJECTIVES Some microorganisms, mainly members of two genera including Pseudomonas and Mycobacterium, were found to be capable of transforming and degrading of polluting agents. We herein report the isolation of a few mycobacteria with the ability to biodegrade organic and inorganic compounds from water supplies of Iranian hospitals. MATERIALS AND METHODS The water samples were...

BACKGROUND One of the most important challenges of Iranian health care system is "quality of care," and it is assumed that motivated nurses are more ready to provide better care. There are limited studies investigating Iranian nurses' motivations; however, factors which motivate them have not been studied yet. Identifying the motivating factors enables nurse managers to inspire nurses for conti...