in this paper, we introduce ergonomic system in assembly department of irankhodro as a case study, and then we measure its role in employees’ health and improving efficiency and productivity. to this end, we studied the effective factors including environmental, physical, safety, mental, psychological, and training. this research is descriptive – applicative in nature. data were collected throu...

introduction: the aim of this study was to explore the relationship between genu varum abnormality and the performance and strength of lower extremity in teenage footballers. materials and methods: 60 young male football players with the mean age of 15.2± 0.78 yr, mean weight of 58.9 ± 3.39 kg and mean height of 166.6.21 cm participated in this study. kendall’s method and plumb line were used t...

extensive job stress and workload are main causes of frustration and reduced efficiency among workers and despite negative effects of these factors on employees' performance, related studies in rehabilitation staff are limited. the aim of this study was to evaluate job stress, workload and their related factors in rehabilitation staff. in this cross-sectional study, 150 employees in three ...

in 1985-86, the european office of world health organization (who) proposed the health promotion program under the theme “healthy cities projects”. with the aim of securing individual and collective welfare, the staffs of healthy city in tehran also began their official activities at 13th aban street at rey (tehran’s 20th municipal district) along with community participation and intersectoral ...

in this paper, after collecting the rock samples from eight mines and one high way slope, the tests for determination of dry density, uniaxial compressive strength, tensile strength (brazilian test), elastic modulus, schmidt hammer rebound number have been done on samples. in addition, in order to calculating the mean size of rock grains, quartz content, hardness and abrasivity, a thin sections...