Oils extracted from plants have been used since ancient times and in many cultures .frying oils are used in many countries all around the world including Iran. Therefore it is of great importance to ensure the safety of these food products which are usually delivered in polyethylene terephthalate (PET) bottles. This study has investigated the effect of storage time and temperature on the migrat...

background: hepatitis a, an acute viral disease is the most common global cause of viral hepatitis that affects millions of people annually. due to its high incidence, hepatitis a is considered a worldwide health problem. this study aims to determine the knowledge, risk perceptions, and behavioral intentions for hepatitis a among elementary school teachers in yazd city. â  materials and methods...

Alternative theoretical perspectives have been presented to explain internationally effective factors affecting immigration. For example, the orthodox explanation of migration is based on the concept of wage differentials as an important factor of international immigration. The world system approach declines to interpret theoretically international migration as a phenomenon between independent ...

introduction: nurses’ intention to leave job is problematic for health system and the quality of work life is one of the important factors affecting on this intention. the present study aimed at show the relationship between nurses’ quality of work life and their intention to leave the job. methods: this study was an analytical cross-sectional study. . it was conducted based on a sample of 480 ...

Owing to the ever-increasing prevalence of social media use, social commerce has become an important part of e-commerce. This study endeavors to explore the impact of social media quality and social support on the social commerce (SC) intention directly and through the variable of perceived risk. The sample included 214 social media users in Isfahan collected through simple random sampling meth...

Background. Nowadays, One of the factors affecting the social network advertising is the numbers or frequencies of sending an advertisement.  Objectives. the objective of this study was to investigate the role of the Target Audience Rating Point factor in social network advertising in brand awareness and purchase intention of sport brands. Methods. This quasi-experimental study was conducted ...