Background & Aim: Exercise and physical activity have recently been the focus of attention in public health. People who participate in sport, recreation and physical activities are generally healthier and more confident than those who do not. Potential health consequences of physical inactivity reported in other studies include hypertension, coronary heart disease, diabetes, obesity, high b...

the rationale behind the present study is that particular learning strategies produce more effective results when applied together. the present study tried to investigate the efficiency of the semantic-context strategy alone with a technique called, keyword method. to clarify the point, the current study seeked to find answer to the following question: are the keyword and semantic-context metho...

writing as a productive skill requires practice in the basic sub-skills of vocabulary and grammar. in fact, grammar has been viewed as the core of programs in writing classes to help the students put the elements of sentence together and combine sentences of specific lengths to come up with an error-free work of art. conceptualizing l2 writing in this way introduces writing as a product and enc...

determination of uranium in natural water and complex solutions using ion exchange chromatography: a combined procedure using ion exchange chromatography and uv-vis spectrophotometry techniques has been developed to measure uranum in natural water and complex solutions. after conditicing , one hundred milli liters of sample solutions have been passed through an ion exchange column,pachked with ...

in this thesis, structural, electronical, and optical properties of inverse pervskite(ca3pbo) in cubic phase have been investigated.the calculation have been done based on density functional theory and according to generalized gradiant approximate (gga) as correlating potential. in order to calculate the configurations, implementing in the wien2k code have been used from 2013 version. first of ...

Background and aims:Nowadays cardiovascular disorders are the most common cause of death in worldwide. Several studies have shown that ischemic cardiovascular diseases are more common in drivers, especially professional drivers, but underlying causes have not beencompletely understood.Methods:This study was a cross sectional, descriptive-analytic study. 1120 professional divers who worked with ...