نتایج جستجو برای: positive and negative likelihood ratios

تعداد نتایج: 16916709  

Journal: :emergency journal 0
alireza baratloo emergency department, shohadaye tajrish hospital, shahid beheshti university of medical sciences, tehran, iran. saeed safari emergency department, shohadaye tajrish hospital, shahid beheshti university of medical sciences, tehran, iran. mohamed elfil faculty of medicine, alexandria university, alexandria, egypt. ahmed negida faculty of medicine, zagazig university, zagazig, egypt.

in the previous two parts of educational manuscript series in emergency, we explained some screening characteristics of diagnostic tests including accuracy, sensitivity, specificity, and positive and negative predictive values. in the 3rd  part we aimed to explain positive and negative likelihood ratio (lr) as one of the most reliable performance measures of a diagnostic test. to better underst...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید باهنر کرمان - دانشکده ادبیات و علوم انسانی 1391

terms of address as an important linguistics items provide valuable information about the interlocutors, their relationship and their circumstances. this study was done to investigate the change route of persian address terms in the two recent centuries including three historical periods of qajar, pahlavi and after the islamic revolution. data were extracted from a corpus consisting 24 novels w...

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

toury (1978:200) believes that translation is a kind of activity which inevitably involves at least two languages and two cultural traditions. being polite while asking for something takes place differently in different cultures and languages, therefore various strategies may be applied for making requests and also translation of them in order not to disturb or threaten the face or better to sa...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی امیرکبیر(پلی تکنیک تهران) - دانشکده مهندسی کامپیوتر 1387

با گسترش روزافزون شبکه های کامپیوتری و استفاده از آن، مسائل امنیتی در این ارتباطات در سالهای اخیر اهمیت ویژه ای یافته است. بزرگترین خطر امنیتی که اینترنت در حال حاضر با آن مواجه است، انتشار سریع نرم افزارهای بدخواه اینترنتی است. طرحهای مبتنی بر امضا غالباً در تشخیص نرم افزارهای بدخواه یک روزه ناتوان بوده و با توجه به اینکه نوعاً نیازمند دخالت انسانی برای فرموله کردن امضاهای حملات جدید هستند، توان...

انصاری, پروانه, سعیدی فرد, فرزانه, سلطانی, اکبر, طالبا, مطهره, فروغی, معین, قدیری, فرشته, قربانی, مصطفی, معنوی, سحر, موسی پور, حمیده,

Background: It is critical to understand how accurately physicians can estimate the importance of each clinical finding in estimating the probability of a specific diagnosis in the process of clinical decision making. This study aimed to investigate whether physicians’ estimates of the importance of various clinical findings of ascites correlated with the positive likelihood ratios of the...

Background: Acute appendicitis is the most common nonobstetric surgical problem in pregnancy. Common signs and symptoms of appendicitis are less reliable during pregnancy due to physiological changes; thus, the role of imaging becomes prominent. Thus, in the present study, we aimed at assessing the accuracy of sonography in diagnosing acute appendicitis during pregnancy.    Methods: ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سمنان - دانشکده مدیریت و اقتصاد 1392

these days, all department stores make an effort to provide their clients with valuable products in order to project the best image for them. as a result, clients’ comprehension risk will decrease and they will be more willing to repurchase. having a good image is really important for the department stores because it makes an impression on clients’ comprehension of both quality and risk. consid...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه ایلام 1388

the present study was an attempt to determine the types of motivation and levels of foreign language learning anxiety among efl students studying at azad and state universities in kermanshah and to determine the relationship between these two factors and language proficiency and gender. to this end, the foreign language learning motivation scale, by deci and ryan )1985(, were administered to 12...

Journal: :The Australian journal of physiotherapy 2008
Phillip C Hughes Nicholas F Taylor Rod A Green

QUESTION Do clinical tests accurately diagnose rotator cuff pathology? DESIGN A systematic review of investigations into the diagnostic accuracy of clinical tests for rotator cuff pathology. PARTICIPANTS People with shoulder pain who underwent clinical testing in order to diagnose rotator cuff pathology. OUTCOME MEASURES The diagnostic accuracy of clinical tests was determined using likel...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی 1390

abstract because of the many geopolitical, geo economical and geo strategically potentials and communicational capabilities of eco region, members can expand the convergence and the integration in base of this organization that have important impact on members development and expanding peace in international and regional level. based on quality analyzing of library findings and experts interv...

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