نتایج جستجو برای: in many measured indices

تعداد نتایج: 17035374  

پایان نامه :دانشگاه امام رضا علیه اسلام - دانشکده ادبیات و زبانهای خارجی 1393

abstract this mixed method study examines whether there is any relationship among the variables of the study (job satisfaction, social capital and motivation). the researcher considered job satisfaction and social capital as independent variables; motivation is the dependent variable of the study. the researcher applied a questionnaire to assess each variable. to measure efl teachers’ job sati...

ژورنال: سلامت کار ایران 2012
ذکایی, مجتبی , سردار, علی , علیمحمدی, ایرج , فرشاد, علی اصغر , فلاحتی, محسن,

  Background and Aims: Hot and humid conditions are common in many parts of the world these conditions can influence both the health and performance of individuals. Therefore to describe the environmental conditions appropriately, the amount of reliability of heat stress indices should be measured. The aim of this study was evaluating the reliability of WBGT and P4SR by comparison to core body ...

Background Keratoconus (KCN) is a bilateral, progressive, and non-inflammatory disorder in the cornea, which results in thinning and protrusion of the cornea. Objective This study aims to determine the effectiveness of using pachymetric progression indices (PPIs) in grading the severity of KCN disease.  Methods In this study, 76 patients with different stages of KCN were enrolled. The severit...

پایان نامه :0 1375

investigation the archetype of mother can help the reader to understand poes works, especially his fiction, better, if not fully. motivated by internal and external drives to get into the universe in its manifold form poe was impelled to art and, from various modes of art, to symbolism. how much was poe successful to produce works of art has been a matter of dispute among critics. however, ther...

Journal: :journal of rangeland science 2013
gholamreza zehtabian hossein azarnivand hasan ahmadi saeideh kalantari

one of the influential tools concerning the rangeland and vegetation sciences isthe technology of remote sensing and satellite data. satellite data have played essentialroles in preparing the needed information for studying the vegetation. vegetation has beenwidely recognized as one of the best indicators for determining the land conditions. usingvegetation indices is one of the techniques of r...

Journal: :مجله دانشگاه علوم پزشکی شهید صدوقی یزد 0
سمیه جعفری ندوشن s jafary-nodushan . [email protected] مهرداد شکیبا m shakiba محمدحسن لطفی mh lotfi

introduction: water is an essential nutrient for life. it comprises 75% of total body weight in infants,60% in adult males and 50% in adult females. decrease in body water is commonly known as dehydration. acute or chronic dehydration is a common condition in some population groups, especialy the elderly and those who participate in physical activity in warm enviroments. potential consequences ...

Journal: :international journal of occupational hygiene 0
iraj alimohamadi department of occupational health engineering, occupational health research center, tehran university of medical sciences, tehran, iran. mohsen falahati department of occupational health engineering, tehran university of medical sciences, tehran, iran. aliasghar farshad department of occupational health engineering, occupational health research center, tehran university of medical sciences, tehran, iran. mojtaba zokaie department of occupational health engineering, tehran university of medical sciences, tehran, iran. ali sardar research and development office, iranian oil terminal company, tehran, iran.

most of iranian oil terminals are located in tropical regions and consequently, disorders of heat stress among workers are expected. there are many heat stress indices with self-advantages and disadvantages which are used for evaluating the amount of heat stress. the aim of the present study was to evaluate the reliability of wbgt, et and cet indices by comparison to core body temperature in kh...

Introduction: The gamma index is a known parameter for radiotherapy dose verification. Many free and commercial programs have been written for the calculation of this index. However, the verification of the results has been overlooked in many of the programs. The present study tested the validity of three gamma index calculator programs. Material and ...

Journal: :مرتع و آبخیزداری 0
مریم آذرخشی استادیار مجتمع آموزش عالی تربت حیدریه بهنوش فرخ زاده دانشجوی دکتری آبخیزداری دانشگاه تهران محمد مهدوی استاد دانشگاه تهران، دانشکده منابع طبیعی، ایران حسین ارزانی استاد دانشگاه تهران، دانشکده منابع طبیعی، ایران حسن احمدی استاد دانشگاه آزاد اسلامی، واحد علوم و تحقیقات تهران، ایران

iran is located in dry belt of the earth and always involved with drought in different sections. drought has already caused many losses to natural plant cover, agriculture and human society. for drought monitoring, we can use some drought indecies. in this research, the standard index of annual precipitation)siap),sandardized precipitation index (spi) and palmer drought severity index (pdsi) we...

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