background: to determine relationships between healths related quality of life and body mass index in children aged 9-11 years old. methods: this cross sectional study was conducted on 240 children 9-11 year olds who were selected via multi stage cluster sampling design from primary schools in the shahre qods of the tehran, iran in 2007. pediatric quality of life inventory was completed by chil...

background: air pollution and concerns about health impacts have been raised in metropolitan cities like tehran. trend and prediction of air pollutants can show the effectiveness of strategies for the management and control of air pollution. artificial neural network (ann) technique is widely used as a reliable method for modeling of air pollutants in urban areas. therefore, the aim of current ...

Rheumatic diseases are the most common reasons of partial disability and the fourth leading reason of the full disability. The rheumatoid arthritis (RA) is a chronic autoimmune disease characterized by synovium inflammation with subsequent joints harming. The complex RA treatment has several objectives—symptomatic relief, suppression of active inflammation, prevention of tissue damage, improvem...