‏‎the main purpose of this research was to:1.develop a coking model for thermal cracking of naphtha.2.study coke inhibition methods using different coke inhibitors.developing a coking model in naphtha cracking reactors requires a suitable model of the thermal cracking reactor based on a reliable kinetic model.to obtain reliable results all these models shall be solved simultaneously.for this pu...

Introduction: The prevalence of high blood pressure worldwide and Creation of serious complications in organs, the disease has become a major health problem in all societies that management of the disease appears to be very important. The present study aimed to determine predictive factors of high blood pressure in patients with hypertension, according to the health belief model. Methods: Th...

since esp received universal attention to smooth the path for academic studies and productions, a great deal of research and studies have been directed towards this area. swales’ (1990) model of ra introduction move analysis has served a pioneering role of guiding many relevant studies and has proven to be productive in terms of helpful guidelines that are the outcome of voluminous productions ...

  Background and aims   Every year 50-158 million occupational diseases and job accidents occur in the world. Studies on the job injuries show that about 150000 injuries occur annually in  Iran. Unhealthy behaviors are important problems in public health. Education is one of the best ways to change unhealthy behaviors. Interventions based on model and theories have many  capacities for behavior...

 Background & Aim: Osteoporosis is considered as a silent disease. Having knowledge and correct health beliefs can be effective on preventive behaviors in osteoporosis disease. This study aimed to determine the impact of educational intervention on knowledge, perceptions and self-efficacy among adolescent girls. Materials & Methods: this quasi-experimental study was performed on 45 adolescent g...

Background and objectives: Osteoporosis, a current silent epidemic, is of high importance due to its high prevalence and complications among women. It is a preventable disease whose high-risk population includes young girls. This study investigated the impacts of a health belief model-based education program about osteoporosis prevention on physical activity of junior high school students in in...

Background & Aims: Sedentary lifestyle is the fourth leading cause of death worldwide. More than %80 of adolescents and young people, especially young girls, worldwide do not have enough physical activity. The present study was designed to determine the effect of education based on health belief model on high-risk sedentary physical activity in female students. Methods & Materials: In this ran...