Background and purpose: Colorectal cancer is the most common gastrointestinal cancer throughout the world. Knowledge about the disease incidence and its changes over time can be useful in planning for the prevention and cause detection, therefore this study aimed at investigating the incidence of gastric cancer in Iran. Materials and methods: This study was a reanalysis of existing data. We us...

  Background and Aim: Major beta thalassemia is the most common hereditary anemia in our country, especially in the shores of Caspian Sea, Oman and the Persian Gulf. Hearing impairment is one of its complications. This study was aimed to evaluate the hearing impairment in thalassemic patients in South Khorasan province.   Materials and Methods: This descriptive-analytic and cross sectional s...

there are two major theories of measurement in psychometrics: classical test theory (ctt) and item-response theory (irt). despite its widespread and long use, ctt has a number of shortcomings, which make it problematic to be used for practical and theoretical purposes. irt tries to solve these shortcomings, and provide better and more dependable answers. one of the applications of irt is the as...

the central purpose of this study was to conduct a case study about the role of self monitoring in teacher’s use of motivational strategies. furthermore it focused on how these strategies affected students’ motivational behavior. although many studies have been done to investigate teachers’ motivational strategies use (cheng & d?rnyei, 2007; d?rnyei & csizer, 1998; green, 2001, guilloteaux & d?...

abstract: sayyed mohammad tabatabaee is accounted as one of the effective persons in iran contemporaneoushistory and his role in the events of iran constitution revolution is inevitable. sayyed mohammad tabatabaee from the time of naser al din shah qajar and arrival to iran, informed of the advantages and the basis of constitution, was in the thought of making the iran rule as a constituti...

the purpose of this study was to examine the english language needs of medical students at tehran university of medical sciences . analysis of the needs took place for three groups: 320 undergraduate students, 30 postgraduate students and 20 university instructors. a triangulation approach to collect data was used in which a combination of the quantitative (using the questionnaires) and qualita...

Introduction When unbalanced spatial dispersion of developmental indicators increase, unbalanced distribution of facilities and population will dramatically increase too and meanwhile the increase of centralization of indicators in regions that suffer from centralization of facilities and population will lead to population and facilities movement from deprived regions and this will increase ...