نتایج جستجو برای: معیارهای isi

تعداد نتایج: 28757  

2014
Calvin Ardi John Heidemann

With the vast amount of accessible, online content, it is not surprising that unscrupulous entities “borrow” from the web to provide filler for advertisements, link farms, and spam and make a quick profit. Our insight is that cryptographic hashing and fingerprinting can efficiently identify content reuse for web-size corpora. We develop two related algorithms, one to automatically discover prev...

2002
Leon Poller Michelle Keown Nikhil Chauhan Anton M.H.P. van den Besselaar Armando Tripodi Caroline Shiach Jorgen Jespersen

Background: The International Sensitivity Index (ISI) calibration of whole-blood prothrombin time (PT) monitors for point-of-care testing (POCT) described by Tripodi et al. (Thromb Haemost 1993;70:921–4) has been shown to be dependable but is too complex and demanding. The use of plasma would simplify calibration of whole-blood POCT PT monitors, but important differences may exist between the I...

Journal: :hepatitis monthly 0
seyyed mohammad miri baqiyatallah research center for gastroenterology and liver diseases, ir iran; kowsar, the netherlands +98-2188621755, [email protected] azam raoofi kowsar, the netherlands +98-2188621755, [email protected]; kowsar, the netherlands +98-2188621755, [email protected] zahra heidari kowsar, the netherlands +98-2188621755, [email protected]; department of clinical psychology, shahid beheshti university of medical science and health services, ir iran

background citation analysis as one of the most widely used methods of bibliometrics can be used for computing the various impact measures for scholars based on data from citation databases. journal citation reports (jcr) from thomson reuters provides annual report in the form of impact factor (if) for each journal. objectives we aimed to evaluate the citation parameters of hepatitis monthly by...

ژورنال: :چشم انداز مدیریت صنعتی 0
محمد رضا مهرگان دانشگاه تهران محمد رضا اخوان انوری دانشگاه تهران کامیار رئیسی‏فر دانشگاه تهران

چکیده      با توجه به پیچیده و گسترده شدن طیف مسائل تصمیم‏گیری، شاخه‏ای نوپا در تحقیق در عملیات تحت عنوان تحقیق در عملیات نرم (sor) شکل گرفته است. برخلاف دیدگاه سخت و کلاسیک، تحقیق در عملیات نرم از روش‏های کیفی و تفسیری برای تفسیر، تعریف و بررسی جوانب مختلف مسأله مورد بررسی استفاده می‏کند. از سوی دیگر، ترسیم نقشه حوزه‏های علم به تعیین جایگاه آن قلمرو در گستره‏ دانش کمک و نسبت آن را با سایر حوزه...

2017
David P. McAllindon Philip G. Tibbo Gail A. Eskes

Schizophrenia is associated with a deficit in working memory, with the degree of working memory impairment related to the level of social and occupational functioning. This study tests the hypothesis that the working memory deficits in individuals with schizophrenia can be explained by slow processing of visual stimuli, as measured by the attentional blink (AB) task. Individuals with schizophre...

Journal: :Spine 2016
Jun Ouchida Yasutsugu Yukawa Keigo Ito Yoshito Katayama Tomohiro Matsumoto Masaaki Machino Taro Inoue Keisuke Tomita Fumihiko Kato

STUDY DESIGN A prospective imaging study to develop diagnostic criteria. OBJECTIVE The aim of this study was to investigate image findings on delayed magnetic resonance imaging (MRI) after the acute phase of spinal cord injury without radiographic abnormality (SCIWORA) and their relationship with symptom severity. SUMMARY OF BACKGROUND DATA MRI is used to diagnose acute neurological injury,...

Journal: :The Journal of clinical endocrinology and metabolism 2013
Dimitrios A Stakos Konstantinos D Boudoulas Trudy R Gaillard Dara P Schuster Kwame Osei Harisios Boudoulas

CONTEXT Insulin resistance is associated with altered vascular function in diabetes. OBJECTIVE The objective of the study was to define the overall and regional aortic function as well as the changes of aortic function over time in nondiabetic individuals with insulin resistance and a normal oral glucose tolerance test (OGTT). DESIGN This was a cross-sectional and longitudinal analysis with...

2002
Apiwan Born

Information systems infrastructure (ISI) was ranked as the most important issue in a 1994-1995 study of key issues in IS management (Brancheau et al. 1996). Yet, to date, little theoretical and empirical work has been done in this area. This study attempts to reconceptualize the ISI construct and its measures. Drawing from the literature, this study envisions ISI as a base of shared technologic...

ژورنال: :مجله میکروب شناسی پزشکی ایران 0
احمد یوسفی عضو هیئت علمی موسسه تحقیقات واکسن و سرم سازی رازی عباس گیلوری عضو هیات علمی مرکز اطلاعات و مدارک علمی کشاورزی طیبه شه میرزادی عضو هیات علمی مرکز اطلاعات و مدارک علمی کشاورزی

زمینه و اهداف: در حال حاضر، میزان تولیدات علمی نمایه شده در پایگاه های اطلاعاتی معتبر جهان نظیر isi از معیارهای مهم ارزیابی و رتبه بندی علمی کشورها، پژوهشگران، موسسات و دانشگاه ها در جهان است. سهم هر کشوری در تولیدات علمی جهان به طور کلی و در خوزه ای خاص، بر همین اساس محاسبه می شود. لذا تعیین میزان رشد وضعیت مقالات نویسندگان ایرانی در پایگاه های isi در حورزه میکروب شناسی از جنبه های پراکنش و رش...

Journal: :Neurocomputing 2005
Patrick Crotty William B. Levy

We investigate the energy efficiency of interspike interval (ISI) neural codes. Using the hypothesis that nature maximizes the energy efficiency of information processing, it is possible to derive neuronal firing frequencies which maximize the information/energy ratio. With simple assumptions about the encoded ISI and noise distributions, we show that ISI codes can be at least as efficient as d...

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