sludge production is an avoidable problem arising from the treatment of wastewater. the sludge remained after municipal wastewater treatment contains considerable amounts of various contaminants and if is not properly handled and disposed, it may produce extensive health hazards. on the other hand, this sludge has benefits for plants and soils. thereupon, land application of sludge has received...

although iran has a deep history about 10000 years, its role in development of science in general and medicine in particular is yet to be known. there are several factors responsible for this, namely the destruction of a good number of ancient persian manuscripts and books. furthermore, lack of interest found among contemporary researchers seems to add to this anonymity. one way to compensate f...

Twenty-seven patients with histologically confirmed lupus nephritis were studied to identify the incidence of lupus band and its significance to histological patterns of nephritis and complement levels. It was found that the kidney involvement is 2.5 times more frequent in lupus band positive patients. The association of a positive lupus and low C3 level signifies the presence of diffuse prolif...

background: prenatal care consists of a series of clinical visits and services offered to pregnant women throughout the ante-partum period. despite advances in the extent of prenatal care use in iran, some women still avoid using these services. it is therefore very important to investigate the prevalence of prenatal care use, and to identifythe factorsassociated with it. objective: this study ...