in the present study, the effect of core on shear lag phenomenon in tubular structures is investigated. three different tubular structure models including model without core, model with central core and model with central core but eliminated in last 15 stories have been analyzed. a shear lag index is defined for evaluating these models. from examination of the results, the effective influence o...

the objective of the present study was to identify managerial competencies. this study reviewed existing managerial competencies in a cultural context resulting in the development of a broad based psychometrically sound leadership questionnaire. the unit of analysis of the research was a theoretical and experimental research related to managerial competencies, provided from seventeen iranian an...

abstract objectives: the purpose of this study was to investigate the relationship between core stability and lower extremity injuries in female athletes through functional tests. decreased core stability has been suggested to contribute to the etiology of lower extremity injuries. so far researches had been used non-functional tests to assess the core stability. material and methods: fifty col...

in this study calf thymus chromatin was fractionated into active (s1 and s2) and inactive (p 2) chromatin. then the interaction of an anthracyc1ine antibiotic, adriamycin, with these fractions was investigated employing absorption and difference uv nis spectroscopy and sds and agarose gel electrophoreses. the results suggest that the binding of adriamycin to the s 1 fraction is slight but s2 an...

conclusions the canola oilseeds could provide a useful expression system to produce hcv core protein as a vaccine candidate. results western blot analysis using anti-his antibody confirmed the presence of a 15 kda protein in the seeds of t1 transgenic lines. the amount of antigenic protein accumulated in the seeds of these transgenic lines was up to 0.05% of the total soluble protein (tsp). mat...

purpose: this research aimed to study the effect of 8 weeks core stability training on static balance of the children with down syndrome. methods: a total of 16 children with down syndrome from rehabilitation center of noor abad city were selected and randomly divided into 2 groups of control (n=8) and experimental (n=8). at the pretest and posttest, subjects’ static balances were evaluated by ...

this paper is a report on the synthesis of the fe3o4@ag core-shell with high saturation magnetization of magnetite nanoparticles as the core, by using polyol route and silver shell by chemical reduction. x-ray diffraction (xrd) and fourier transform infrared spectroscopy analyses confirmed that the particles so produced were monophase. the magnetic properties of the product were investigated by...

Purpose: A theory states that strong core stability allows athletes to fully transfer forces from the upper extremities to lower extremities, and finally to the ground. On the contrary, weak core stability causes alterations in transferring forces, reduces sport performance, and increases risk for injury, especially in the lower extremities. Therefore, the current study investigated the relatio...

abstractbackgroundentity. it is hypothesized to result from abnormal patellar tracking caused by altered motorcontrol. deficit in neuromotor control of the core may be a remote contributing factor to thedevelopment of pfp. application of reliable emg measures would be helpful to handle thistheory. therefore, the purpose of this study was to determine the test-retest reliability of thecore and v...