several demographic factors may be considered as barriers to osteoporosis prevention like high rate of illiteracy and low socioeconomic status in developing countries, there is lack of studies that assess the relationship between socioeconomic status and osteoporosis. this study was a case-control study and it was conducted in two bone mineral density centers in tehran. case group includes 163 ...

Introduction: Andropause is a common clinical entity of advanced age, with a decline in androgen levels in males. Many of the signs of male aging are results of this condition with significant decline in their quality of life and adverse effects on multiple organ systems function. Androgen Deficiency of the Aging Male (ADAM) questionnaire is one of the most applied screening tools for androgen ...

This study is carried out to examine the economic factors affecting the services exports using descriptive-survey method. Research objectives are Identification of economic variables affecting the services exports, Identifying the critical components of service exports, The study of the structural model on the effect of discovered components on export services and Ranking the weight of each of ...

Objective(s): The stimulation of neural stem cells (NSCs) differentiation into neurons has attracted great attention in management of neurodegenerative disease and traumatic brain injury. It has been reported that selegiline could enhance the morphologic differentiation of embryonic stem cells. Therefore this study aimed to investigate the effects of selegiline on NSCs differentiation with focu...

Introduction: around the world, the science system of many countries is being transformed and changed in response to increasing social and economic need for knowledge and technology. The theory of the entrepreneurial university is one of the models proposed for reflecting the new and transformed image of the university characterized by a broader interaction between the universities and the comm...

The present study was performed to investigate the effect of commercial and operational factors on competitiveness improvement of Shahid Beheshti Port (SBP) in Chabahar in attracting shipping lines. The research method is applied in terms of purpose. Initially, the researcher conducted the qualitative phase to identify important variables, create a typology, or make new theories. To reach the s...

the incidence of brain neoplasm has been progressively increasing in recent years in the industrialized countries. one of the reasons for this increased incidence could be better access to health care and improved diagnosis in the industrialized countries. it also appears that caucasians have a higher incidence than blacks or hispanics or asians. a number of risk factors have been identified an...

background: considering the physical, emotional and psychological complications of early or delayed menopause on women`s life, it is necessary to determine associated factors of menopause age. this study designed to determine menopausal age and associated factors in women of gorgan, i.e. the capital of golestan province in the north-east of iran.   methods: in this cross-sectional study, 804 me...

human factors are among the main elements affecting the reliability of nondestructive examinations (nde). in a man-machine system, human reliability is affected by many factors (performance shaping factors) whose influence on reliability cannot be easily expressed quantitatively. this paper identifies and ranks 59 perform-ance shaping factors by using a fuzzy reasoning method and proposes a pro...