نتایج جستجو برای: low concentration

تعداد نتایج: 1513923  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه مازندران - دانشکده علوم انسانی و اجتماعی 1388

abstract the present study was conducted to examine the effect of proficiency on students interaction while carrying out the grammar-based task(s) in collaboration. in particular, the study examines whether the level of proficiency affects the learners’ focus of attention to grammatical and lexical features. the study takes a further step and examines whether there is any difference in the use...

Journal: :Journal of Applied Polymer Science 2006

Journal: :journal of biotechnology and health sciences 0
nematolah gheibi cellular and molecular research center, qazvin university of medical sciences, qazvin, ir iran nader divan khosroshahi cellular and molecular research center, qazvin university of medical sciences, qazvin, ir iran; cellular and molecular research center, qazvin university of medical sciences, qazvin, ir iran. tel: +98-9125819521, fax: +98-2833324971 marzieh habibi microbiology department, science and research branch, islamic azad university, tehran, ir iran

conclusions caffeic acid treatment reduced bacterial growth and resulted in a decreased number of colony formation. the simultaneous effect of caffeic acid and laser at three time courses showed a synergic effect in reducing colony formation compared to the control and caffeic acid, and laser alone. objectives the aim of this study was to investigate the effect of caffeic acid and low-power las...

Journal: :iranian journal of allergy, asthma and immunology 0
mostafa sedighi zahra pourpak behrouz bavarian reza safar alizadeh ahad zare mostafa moin

magnesium (mg) is the second most abundant intracellular cation and is involved in numerous physiological functions, including protein folding, intracellular signaling and enzyme catalysis. it has been shown that magnesium deficiency exacerbates pulmonary airways hyperreactivity. several studies suggest that magnesium level has no effect on asthma but others had shown a contributory effect. bec...

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