introduction: we investigated the characteristic of a suitable irradiation on skin's tensional strength using design of experiments (doe). the experiments in this research are designed in two phases and data envelopment analysis (dea) is used for performance measurement of each phase. material and methods: samples were provided from pleura as surface tissue made of collagen and elastin fib...

background: acute low back pain is one of the most prevalent diseases which more than 90% of the adults experience at least once during lifetime. the present study was conducted to determine the efficacy of duration of hot water bag usageon pain relief in in the patients with acute low back pain. methods: this clinical trial study was conducted on 20- to 50-year-old patients referring orthopedi...

background: in addition to individual problems and conditions, low back pain reduces working capacity, resulting in the waste of time and absence from the work, and increases healthcare costs and economic losses. this study aimed to determine the prevalence rate of low back pain and its relationship to demographic factors, body mass index, and education in ergonomic principles in rural men.   m...

for detection of mild to moderate degrees of malnutrition, mid- arm-head circumference ratio of 458 of low income children of isfahan were studied. the percentage bf children with a mid-arm-head circumference ratio of above 0.310, between 0.310 and 0.280, between 0.279 and 0.250, and less than 0.250 were 31.00, 51.75, 15.28 and 1.97 respectively. a significant correlation was found between the ...

a refrigeration cycle is a chain of various pieces of equipment including compressors, condensers, evaporators, and expansion devices each of which takes on a particular thermodynamic process duty in the cycle that eventually results in the production of the required refrigeration. the results of optimized mixed refrigerant cycles (mrcs) in part i show that the configuration of mrc is an effect...

objectives: the purpose of this experimental study was to evaluate the efficacy of low level laser therapy (lllt) for pain reduction after midpalatal expansion in rats.   materials and methods: sixty male sprague six-week old rats weighing 180±10g were divided into seven groups (two experimental groups of 24 rats and one control group of 12 rats). the experimental groups were subjected to expan...

conclusions categorization of trials based on their classification scheme to investigate the efficacy of classification-based physical therapy could reduce the heterogeneity of trials and allow researchers to understand the contradictory results in this context. results a total of 12 rcts were identified and categorized into four classification schemes. some evidence supporting classification-s...

medication errors and adverse drug events can bring about hospitalization, permanent injury, or death. patients due to lack of adequate understanding of instruction may unintentionally misuse a prescribed medicine. the aims of the study were to examine whether patients with low back pain were correctly able to understand physician's instructions regarding drug use and also to identify influenci...

background: numerous in vitro reports suggest that low level laser therapy (lllt) affects cellular processes by biostimulation, however most of them emphasize on using visible light lasers which have low penetration. the aim of this study was to determine the effect of infrared laser light (which is more useful in clinic because of its higher penetration) on secretion of fibroblast growth facto...

in the present research work, influence of fleawort (plantago ovate l.) seed hydrocolloid at three concentration level (0.1, 0.15 and 0.2%) was investigated on physicochemical, textural and sensory characteristics of low fat yoghurt. the treated yoghurt samples were compared with a positive (3% fat) and negative (0.2%) control sample after 1, 7 and 15 days of storage. fleawort seed hydrocolloid...