نتایج جستجو برای: activity center
تعداد نتایج: 1397591 فیلتر نتایج به سال:
در این پروژه، خواص ساختاری و الکترونی بلور ?-mnas را مورد بررسی قرار دادیم. ?-mnas دارای فاز ساختاری هگزاگونال از نوع nias با نظم اسپینی فرومغناطیس است. بلور ?-mnas یک سیستم فلزی است از این رو در نمودار چگالی حالات الکترونی و همچنین ساختار نواری آن، گاف انرژی مشاهده نشد. در نمودار چگالی حالات کل بلور mnas ، به طور تقریبی شکافتگی اسپینی حدود 4ev وجود داشت و در نمودار چگالی حالت های جزیی این سیست...
Introduction: Health care unit cost is as base for budgeting of function, determining real tariff, and privatization in health sector. Nevertheless, in our country, there is no specific approach for it. This study used Activity Based Costing (ABC) to calculate unit cost of health care services delivered in pilot health care center. Methods: The present study is a research-practical study and ca...
Teresa C. T. Peret, Guy Boivin, Yan Li, Michel Couillard, Charles Humphrey, Albert D. M. E. Osterhaus, Dean D. Erdman, and Larry J. Anderson Respiratory Virus Section, Respiratory and Enteric Viruses Branch, and Infectious Disease Pathology Activity, Division of Viral and Rickettsial Diseases, National Center for Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia;...
Dorsal spinocerebellar tract (DSCT) neurons have been shown to transmit signals related to hindlimb position and movement direction in the anesthetized cat. Because both parameters may be encoded by single neurons, we examined the extent to which their representations might occur sequentially or simultaneously by recording unit activity while the hindlimb was moved passively in the sagittal pla...
abstract background: were made each week during year 2002 from samples of atmospheric aerosols filtered from theair at tehran nuclear research center.measurement of gross beta activities and cosmogenic beryllium-7 concentrationsmaterials and methodssampler at the nuclear research center meteorological station in tehran (40contents of samples were determined with semiconductor gamma spectrometry...
the present study was focused upon the assessment of acetyl-cholinesterase (ache) activity in the digestive gland (main metabolic center) and foot (highly innervated organ) of the green garden snail, cantareus apertus (born, 1778), exposed to different nominal dietary concentrations of pb (25 and 2500 mg pb/kg), cd (10 and 100 mg cd/kg) and their combination (25 mg pb + 10 mg cd/kg and 2500 mg ...
Organoboron catalysts including an ammonium salt separated by a few carbon–carbon bonds to boron center were designed and synthesized. Borinane-based organoboron exhibited highest activity for the copolymerization of CO 2 epoxides.
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