نتایج جستجو برای: center percent

تعداد نتایج: 374644  

Journal: :Journal of dental education 2003
Dov M Almog Jane A Devries John A Borrelli Dorota T Kopycka-Kedzierawski

Broken appointments continue to be an important productivity, quality assurance, and access gauge for private dental practices and academic dental centers. In November 2001, the University of Rochester Eastman Dental Center, an urban academic dental center, installed an automated confirmation system to address a high incidence of broken appointments. Following the installation of the system, th...

Journal: :The Journal of the American Board of Family Practice 1990
G J Taylor A Song H W Moses D L Koester F L Mikell J T Dove R E Katholi H A Wellons J A Schneider

From September 1982 through December 1987, 1012 patients were treated with intravenous streptokinase within 6 hours of acute myocardial infarction. Most of them (816/1012, 81 percent) were treated in community hospitals by primary care physicians. The remaining 196 (19 percent) were treated in the referral center, usually by a cardiologist. Cardiac catheterization within 2 days showed an open i...

Journal: :Research in Applied Economics 2014

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه یاسوج - دانشکده علوم پایه 1393

در این پایان نامه به بررسی ایدآل های اوّل و ابتدائی فازی و رادیکال های آنها می پردازیم. ابتدا به تعاریف اصلی و نتایج منطق فازی در فصل اوّل اشاره می کنیم و در فصل دوم به تعاریف و قضایای مربوط به مجموعه ها و ایدآل های فازی پرداخته، درنهایت در فصل سوم خصوصیات ایدآل های ابتدائی فازی ورادیکال آنها درحلقه های تعویض پذیرمورد بحث و بررسی قرارمی گیرد‎.‎ ایدآل ‎$a$‎ از ‎$r$‎ ایدآل ابتدائی فازی است اگر برا...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد تهران مرکزی - دانشکده زبانهای خارجی 1392

the aim of the current study was to investigate the relationship among efl learners learning style preferences, use of language learning strategies, and autonomy. a total of 148 male and female learners, between the ages of 18 and 30, majoring in english literature and english translation at islamic azad university, central tehran were randomly selected. a package of three questionnaires was ad...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه خلیج فارس - دانشکده مهندسی 1393

in civil engineering concrete is a material combined of hydraulic cement, sand, gravel and water. gravel and sand compose 60 to 70 percent of concrete. these aggregates support compression force of concrete. cement paste acts as glue to stick grain together. in bushehr factories producing aggregates do not operate according to astm standards, so that fineness modulus (fm) of the produced sands ...

Journal: :The New England journal of medicine 2006
Ellen J MacKenzie Frederick P Rivara Gregory J Jurkovich Avery B Nathens Katherine P Frey Brian L Egleston David S Salkever Daniel O Scharfstein

BACKGROUND Hospitals have difficulty justifying the expense of maintaining trauma centers without strong evidence of their effectiveness. To address this gap, we examined differences in mortality between level 1 trauma centers and hospitals without a trauma center (non-trauma centers). METHODS Mortality outcomes were compared among patients treated in 18 hospitals with a level 1 trauma center...

Journal: :Journal of Thoracic Disease 2017

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