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تعداد نتایج: 25662294 فیلتر نتایج به سال:
this research was based on survey strategy with the aim to study factors influencing research function of agricultural faculty members. the population of this research consisted of all faculty members of public agricultural faculties and colleges of ministry of scientific, research and technology (n = 1260). using multi-phase sampling method, 172 faculty members were selected and studied. v...
the objective of this study was to determine the relationship between body weight (bw) and heart girth (hg) in sardi and timahdite sheep in order to develop a prediction equation of bw from hg. the data used for this study included 476 records on bw and hg (227 in sardi and 249 in timahdite) collected on males and females of different ages in 33 private farms. the bw and the hg averaged 34.8 ± ...
as far as bandura’s (1977) conceptualization of the sense of self-efficacy is concerned, it is argued to be context- and even task-specific, compared to other concepts like self-esteem (brown, 2000); therefore, upon the previous research studies, related theories and definitions, and the ideas and views obtained from the interviews conducted with the scholars, the current research study aimed a...
background: maternal mortality (mm) is an avoidable death andthere is national, international and political commitment to reduceit. the objective of this study is to examine the relation of mm tosocioeconomic factors and its inequality in iran’s provinces at anecologic level.methods: the overall mm from each province was considered for3 years from 2004 to 2006. the five independent variables wh...
in the area of vocabulary teaching and learning although much research has been done, only some of it has led to effective techniques of vocabulary teaching and many language learners still have problem learning vocabulary. the urge behind this study was to investigate three methods of teaching words. the first one was teaching words in context based on a traditional method of teaching that is,...
asymmetric membranes are widely used in many industrial membrane separation processes. the major advantage of membrane filtration over the conventional process is its ability to remove a wider spectrum of particles without using any chemicals. hollow fiber configuration offer many advantages over flat-sheet or tubular membranes. the spinning process of hollow fiber may look simple, yet it is te...
چکیده در بخش اول این پروژه دو روش میکرواستخخرا به نامهای میکرواسخخرا امولسیونی با کمک اموا فراصتتتو 1 و میکرواستتتخخرا مای – مای با کمک هوا 2 ، به عنوان دو روش میکرواستتتخخرا بدون حلال پخشکننده 3 ، برای اسخخرا برخی هیتدروکربتنهای آروماتیتک حلقوی 4 از نمونتههای آبتی بهکار گرفخه و پارامخرهای موثری همچون نوع حلال اسختتتتخرا کننده، حجم حلال اسخخرا کننده، میزان نمک، زمان تابش اموا فراصتو ، تددا...
Introduction: The present study has determined the relationship between cognitive-attention syndrome and job stress of employees exposed to occupational accidents in Isfahan Steel Company. Methodology: The method of the present study is cross-sectional that was performed in 2019 on production line workers exposed to accidents in the steel production company in Isfahan. The statistical popula...
Introduction: Teeth can be used to determine age in forensic medicine if none of the other techniques of identification are appropriate. The researchers used panoramic radiographs from patients referred to Yazd Shahid Sadoughi Dental School to determine age using pulp/tooth perimeter ratio. Methods: In this diagnostic study, 800 panoramic digital radiographs were examined and the age of the pa...
Soil erosion by water and wind processes are carried out widely. So one of the best ways to estimate soil loss and land degradation is regional erodibility model. The aim of this research is codification regional erodibility model by statistical methods, the relation survey in Khoor and Biabanak between physical properties of soils and remote sensing indices. Sampling Method field was linear tr...
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