a survey of mottled enamel in a military educational center in karaj area of metropolitan tehran was conducted from august to september 1978, on a population of 1789 student, aged 18-23 gathered from 32 areas of iran. dean clinical standards used for diagnosing dental fluorsis and orion lonalyzer fluoride electrode was used to determine the fluoride content of communal waters of endemic areas. ...

the existence of an organization depends on communications and this is an area that managers spend most of their time on. therefore, recognition of communication skills accompanied with its implementation is among the essential parameters of successful management in any organization. in this study we decided to determine the relationship between managers' communication skills and health of orga...

A comprehensive mathematical model based on the discrete particle model and computational fluid dynamics was utilized to investigate mixing and segregation of particles in fluidized beds at high pressure. To quantify the extent of mixing in the bed, the Lacey mixing index was used. Simulations were carried out with different mass fractions of small particles at various pressures ranging from 1 ...

background: diabetes is a leading cause of cardiovascular disease (cvd). moreover, cvd accounts for primary cause of death among diabetic patients. physicians, especially in the primary care setting, have effective role in the management of cardiovascular risk factors. therefore, we aimed to compare the prevalence of modifiable cardiovascular risk factors in type 2 diabetic patients attending t...

a comprehensive mathematical model based on the discrete particle model and computational fluid dynamics was utilized to investigate mixing and segregation of particles in fluidized beds at high pressure. to quantify the extent of mixing in the bed, the lacey mixing index was used. simulations were carried out with different mass fractions of small particles at various pressures ranging from 1 ...