abstract deviation or in other words committing a crime is literally a social problem. this research that was conducted in 1389 and 1390 has tried to investigate the causes of crimes committed by young male inmates qazvin central prison and effective variables on their tendency to deviation. accordingly after collecting theoretical framework and offering theoretical model including both hirsch...

Introduction:The purpose of this study is Investigating the effect of strategic planning on human performance from the perspective of the staff of Shohada Tajrish Hospital in Tehran. Materials and Methods: This research is applied-practical in terms of purpose and correlational in terms of nature and descriptive method. The statistical population of the present study includes all permanent sta...

determination of uranium in natural water and complex solutions using ion exchange chromatography: a combined procedure using ion exchange chromatography and uv-vis spectrophotometry techniques has been developed to measure uranum in natural water and complex solutions. after conditicing , one hundred milli liters of sample solutions have been passed through an ion exchange column,pachked with ...

Background: Positive use of internet may lead to the progress in life and unethical use of internet may take us away from scientific goals. The ‎purpose of the research is to study the tendency of students in ethical usage of internet.  Method: Study is a descriptive and analytical type and it has been done by survey method.  The ‎statistical population is 13485 individuals of students of Urmia...

data envelopment analysis (dea) is a powerful tool for measuring relative efficiency of organizational units referred to as decision making units (dmus). in most cases dmus have network structures with internal linking activities. traditional dea models, however, consider dmus as black boxes with no regard to their linking activities and therefore do not provide decision makers with the reasons...

Introduction: In the modern industrial world, the health of the employees in different Occupations can be influenced by the interaction of various risk factors. So, the purpose of present study was to assess and analyze the relationship between the factors including shift work, job stress, job satisfaction and health in a petrochemical industry. Materials & Methods: The present study was condu...