background : dental unit waterlines (duwls) are ideal nvironment for development of microbial biofilms. microbial contamination of water in duwls is thought to be the result of biofilm formation as it could serves as a haven for pathogens. the aim of this study was to assess microbial quality of water in dental unit waterlines of dental units located at the dental school of isfahan university o...

this research develops a two-level model based on hypotheses, which concern relationships among role ambiguity, role conflict, job involvement and salesperson performance at individual level and collective sale self efficacy, customer orientation and competitive climate at sale unit level in iranian food industry. data was drawn from 482 sales people in 30 companies , using a 51-item self-repor...

background hyponatremia is a common disorder in patients with brain injury. it can result in acute and chronic complications providing this electrolytic disorder is not diagnosed and treated in due time. objectives the aim of this study was to evaluate the prevalence of hyponatremia in 95 patients with brain injury hospitalized in the intensive care unit in shahid beheshti hospital of kashan un...