1-1- اهمیت روغن خوراکی روغن گیاهی جایگاه ویژه ای در سبد غذایی خانوار دارد. علی رغم سرانه بالای مصرف این محصول در کشور، میزان وابستگی کشور به واردات روغن خوراکی در سال 1384، 85% بوده و در سال 1387 این مقدار به 75% رسیده که هنوز آمار نگران کننده ای است (2 و 4). بر اساس آمار سازمان خوار و بار جهانی (f.a.o.) درباره تولید دانه های روغنی در ایران و واردات روغن در کشور، میزان واردات دانه های روغنی از...

The purpose of this study is to investigate the relationship between job embeddedness and organizational embeddedness on turnover intention with regard to the moderating role of career stage. This research is an applied one in terms of purpose and a descriptive survey research based on data gathering method. The statistical population of the study was the first course school teachers of 22 dist...

Purpose: This research aimed to investigate the mediating role of attitudes to cheating in the relationship between social support and educational justice with cheating behavior. Methodology: Present study was cross-sectional from type of correlation. The research population was all high school female students of Tehran city in 2018-19 academic years with number of 120000 people. The sample siz...

During the Covid-19 epidemic, the mental health of nurses and staff in patient-related wards is critical. The aim of this study was to investigate the mediating role of cognitive emotion regulation in the relationship between perceived vulnerability to disease and the experience of post-traumatic stress symptoms in the caregiving staff of patients with Covid-19. The present study is basic resea...

This study aimed at analyzing the effect of exercise on psychological well-being and social health of first grade high school students in Tehran with the mediating role of attachment to school and the use of social media. This applied research had a correlational design. The statistical population of the study comprised all first grade male junior high school students in Tehran. The sample was ...

Introduction: The purpose of this research was to investigate the structural model of the relationship between narcissistic personality and vulnerable attachment with bullying and psychological capital. Method: The design of the research was correlation and the statistical population was all of telecommunications company employees in Tehran while 345 employees were selected as sample using sim...

بیماری مالتیپل اسکلروزیس (ms) از شایع ترین بیماری های نورولوژیک در انسان و شایع ترین بیماری منجر به ناتوانی در جوانان ذکر شده (1998 werring & thompson,) که با التهاب بافتی و آپوپتوز سلول های عصبی همراه می باشد. در ابتدا میلین تخریب شده و سلول های تولید کننده میلین یا الیگودندروسیت ها در مراحل بعدی آسیب می بینند (et al., 2006 cudrici). مکانیسم های پاتوژنیک بیماری به طور کامل شناخته نشده است اما ...