randomization is an essential component of sound clinical trials which prevents selection biases and helps in blinding the allocations. randomization is a process by which subsequent subjects enrolled into trial groups only by chance which is essentially eliminates selection biases. a serious consequence of randomization is severe imbalance among treatment groups with respect to some prognostic...

convictions are strong that multimedia courseware holds great promise for enhancing learning efficiency among learners. this study thus aimed at comparing the effects of the multimedia programs introducing 100 vocabulary items through pictures and streaming video with those of teacher instruction on increasing efl learners’ vocabulary repertoire. a total of 120 subjects were identified as inter...

background: cancer-screening programs are effective in reducing cancer prevalence and mortality; however, cancer remains the leading cause of death in elderly people in korea. the aim of this study was to identify the factors associated with elders’ participation in the national cancer screening program (ncsp) and differences in screening rates by gender. methods: original data from the korea n...

this paper presents a new centralized adaptive method under frequency load shedding. sometimes, after initial frequency drop following severe disturbances, although the system frequency returns to its permissible value, however, the system might become unstable due to voltage problems. in this regard, the paper proposes a new centralized adaptive load shedding method to enhance the voltage stab...

background: revision and promotion of educational programs, as well as guiding such programs from the traditional to modern ones, have been one of the goals of educational planning in order to improve the educational status. the present study was performed based on the opinions of the cardiology assistants.   methods:  this research was a cross sectional study and all the participants included ...

background: postpartum depression is endangering the health of mothers and has negative impacts on the evolution of social communication and newborns evolution. this study was conducted to determine the effects of fordyce happiness program on the postpartum depression. materials and methods: this quasi-experimental intervention carried out on postpartum mothers that referred to 4 health centers...

background & aim: background & aim: physical fitness is essential for maintaining optimal health and can be achieved and improved by doing physical activities. maximal oxygen consumption (vo2 max) has been used as a measure of physical fitness. this study aimed to determine the effect of jogging program on midwives' physical fitness. methods:in this randomized controlled trial two large he...

background: regular physical activity (pa) has been shown to reduce risk of morbidity and overall mortality. a study has displayed that achieving 10,000 steps/day is associated with important health outcomes and have been used to promote pa. pedometers are a popular tool for pa interventions in different setting. this study investigated the effects on pedometer‑based and self‑reported pa among ...

introduction: obesity is common in patients with cardiovascular disease (cvd) and the vast majority of patients entering into cardiac rehabilitation program (crp) are obese. regarding the gender differences, the risk of developing coronary heart disease (chd) is recognized to be different between obese men and women. so, the purpose of this study was to explore the effect of crp in functional c...