air pollution is today a major problem for modern societies. it has long been recognized as a potentially lethal form of pollution. increasing pollution levels due to rapid urbanization and growth in emission related to vehicular transportation are now caused major concern. the mobilization of heavy metals into the biosphere by human activities has become an important process in the geochemical...

1 Department of Mathematics, Imam Khomeini International University, P.O. Box 34149-16818, Qazvin, Iran 2Department of Mathematics and Computer Sciences, Cankaya University, 06530 Ankara, Turkey 3 Institute of Space Sciences, P.O. Box MG-23, 077125 Magurele-Bucharest, Romania 4Department of Chemical and Materials Engineering, Faculty of Engineering, King Abdulaziz University, P.O. Box 80204, Je...

street dusts are suspended particle matters in the air from different natural and anthropogenic sources that may fall out because of their size and density. forty nine street dust samples were collected from some main streets of eastern and southern parts of tehran. one other sample was also collected from iran university of science and technology central campus for comparisons during summer un...

Highway automation has recently enjoyed renewed research interest as a method for solving highway congestion problems. To determine the feasibility of automated highways, it will be essential to estimate the automated highway benefits. A critical task in the analysis of automated highway benefits is to estimate the potential increase in highway capacity. This paper uses deterministic approximat...

INTRODUCTION Nutrition has main effect on health or disease and results of nutrition assessment can be used in health planning of communities. Therefore we aimed to conduct the nutrition assessment especially vitamin D statue of an urban region in Qazvin city. METHODS In a cross sectional study in year 2011, subjects who were randomly selected from residents of aged ≥ 20 years old in Minodar,...

Background: Beta thalassemia is a common inherited disease, resulting from one or more of 200 different mutations in the beta-globin gene. Qazvin province has attracted migrations of several different populations due to industrialization during the past five decades. The aim of this study was to define the molecular spectrum of beta-thalassemia mutations in Qazvin province. Methods: Ethylen dia...

BACKGROUND: Group A bovine rotavirus (BRV-A) is one of the most important causes of gastroenteritis and diarrhea in newborn calves. OBJECTIVES: Major types of BRV-A in Tehran, Alborz and Qazvin were detected in this study. METHODS: A total 125 fecal samples of calves showing clinical signs of diarrhea were collected from 26 industrial dairy farms located in the provinces of Tehran, Alborz and Q...

OBJECTIVE The purpose of this study was to determine the rate and causes of wastage of blood and blood products (packed red cells, plasma, platelets, and cryoprecipitate) in Qazvin hospitals. MATERIALS AND METHODS The study was conducted in all hospitals in Qazvin, including 5 teaching hospitals, 2 social welfare hospitals, 3 private hospitals, 1 charity hospital, and 1 military hospital. Thi...

OBJECTIVE Puberty is a critical time between childhood and adulthood. Many studies have reported that the mean age of breast development is decreasing. The aim of this study was to provide updated data on the pubertal development of girls and to evaluate precocious puberty in our population. METHODS This cross sectional study was conducted in 6 to 16 year old school girls during 2009-2010 in ...