introduction: regarding the cross contamina-tion, prevention from infection is of high prior ity. the aim of this research was assessment of knowledge and attitude of dental students toward infection control in endodontics depart ment of faculty of dentistry, babol uni versity of medi cal sciences. materials and methods: the study was accom plished among 8th, 10th and 12th grade dental students...

among 160 samples collected from rice paddy of the guilan province including rice plant, seed, rhizospher, paddy's soil, paddy's water and sclerotium of the causal agent of rice sheath blight (rhizoctonia solani), 610 bacterial strains were isolated. 71 bacterial strains (11.64%) had the ability of inhibition mycelial growth fungus in dual culture test on pda medium. according to two characteri...

this research aimed to study on effect of foliar spraying with zinc (as zinc sulphate), nitrogen (as urea) and iron (as sulphate and chelated fe) on growth parameters, quality of fruit, flower characteristics, chemical constituents and nutrients content of leaves on grapevine. applied nutrients were zinc sulphate (zn) of 0.0 and 1.5gl-1 and urea (n) at 0.0 and 5 gl-1 and fe (1) control (low fe)...

Plant disease mathematical models including continuous cultural control strategy and impulsive cultural control strategy are proposed and investigated. This novel theoretical framework could result in an objective criterion on how to control plant disease transmission by replanting of healthy plants and removal of infected plants. Firstly, continuous replanting of healthy plants and removing of...

introduction: job stress is one of the main characteristics of modern life which is increasing and has been recognized as an important risk factor of cardiovascular diseases. the present study was conducted to determine the association between job stress at work environment and cardiovascular diseases. materials and methods: a number of 300 persons including 150 cases and 150 controls were cons...

ihd as a modern epidemic of our age is one of the main causes of mortality in iran. this research was done in order to determine the relationship between place of residence and place of occupation (as indicator of air pollution exposures) and other risk factors with ihd. this is a case- control study of ihd involving 191 men aged 45 -70 years. the cases were 91 male patients with myocardial inf...

abstract background: schistosoma haematobium is a parasite that is carried by freshwater snails and induces gastrointestinal and urinary disease, depending on its species. in khoozestan, one of the provinces in iran, schistosomiasis was endemic. this study reports the results of schistosomiasis control in this region. methods: from 1981 to 2001 nearly 650 villages and 20 cities were under surve...