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Background: Tobacco consumption is the second major cause of death and the fourth most common risk factor for diseases, worldwide. Epidemiologic studies have traced the use of alcohol, tobacco, and il...
Mashhad city has a substantial risk of earthquakes due to the potential of the underlying soft soils to amplify ground motions. It is therefore imperative to conduct detailed seismic hazard assessment...
Shear wave velocity, Vs, is one of the important input parameters in seismic response analysis of the ground. Various methods have been examined to measure the soil Vs directly. Direct measurement of ...
Water quality and quantity in agricultural systems of arid and semi- arid regions of the world are of great importance. In this regard the trend to pressurized irrigation systems compared to surface i...
Background: Gastroesophageal Reflux Disease (GERD) is a chronic and common disease, which is characterized by heartburn and regurgitation. In the last couple of decades, GERD has received much attenti...
Background: Recent studies show that the prevalence of tobacco use among teens and students is increasing, and the initiation age of tobacco use has decreased.
Background: Hepatitis B virus (HBV) infection is the most common and serious liver infection in the world. An estimated 350 million people are chronic carriers of this virus, of whom, more than 620,00...
Background: Retinopathy of prematurity (ROP) is a vascular retinal disease that can cause low vision or blindness and affects premature newborns of very low birth weight.
Background: Dental unit waterline system is considered potential source for contamination with Legionella species. The aim of this study was to determine if contamination of a dental unit water line s...
Background: Donor recruitment and retention are significant problems in blood collection agencies around the world. The Aim of this study was to determine the causes of lack of interest to blood donat...
Background: Currently, accidents are the second highest cause of death in most societies. Traffic accidents account for the largest proportion of accidental deaths. The aim of this report was to ident...
Background: There are accumulating evidences that Human T cell Leukemia Virus type I (HTLV-I) plays a part in the development of Sjögren's Syndrome (SS). This virus is endemic in some areas of th...
Background: Determining the factors associated with increased risk of transfusion in coronary artery bypass graft (CABG) surgery can help to decrease the rate of transfusion. This study was performed...
The occurrence of palygorskite and its formation conditions in soils and sediments were studied along a transect covering granitic hilly lands to marly hilly lands in southern Mashhad. Based on format...

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