نتایج جستجو برای: 50 and 75 percentiles

تعداد نتایج: 16901311  

Journal: :J. Informetrics 2013
Lutz Bornmann Loet Leydesdorff Rüdiger Mutz

Percentiles have been established in bibliometrics as an important alternative to mean-based indicators for obtaining a normalized citation impact of publications. Percentiles have a number of advantages over standard bibliometric indicators used frequently: for example, their calculation is not based on the arithmetic mean which should not be used for skewed bibliometric data. This study descr...

Journal: :CoRR 2012
Lutz Bornmann

According to current research in bibliometrics, percentiles (or percentile rank classes) are the most suitable method for normalising the citation counts of individual publications in terms of the subject area, the document type and the publication year. Up to now, bibliometric research has concerned itself primarily with the calculation of percentiles. This study suggests how percentiles can b...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه اصفهان - دانشکده زبانهای خارجی 1389

this study investigates the strategies native english and persian speakers employ for expressing gratitude in different situations. the strategies of persian efl learners are also compared with english strategies in order to find the differences that may exist between these two languages. social status and size of imposition of the favor are social variables which are investigated in detail for...

Journal: :Endocrine journal 2017
Hirotaka Watada Makoto Imori Pengfei Li Noriyuki Iwamoto

In Japan, premixed insulins are commonly used as starter insulin for type 2 diabetes. This subpopulation analysis assessed the efficacy and safety of twice-daily LM25 (25% insulin lispro/75% insulin lispro protamine) and LM50 (50% insulin lispro/50% insulin lispro protamine) as starter insulin in Japanese subjects, and compared these results with the whole-trial populations of East Asian subjec...

Journal: :The Stata Journal: Promoting communications on statistics and Stata 2010

Journal: :Clinical chemistry 2012
Fred S Apple Ranka Ler MaryAnn M Murakami

BACKGROUND Between-assay comparability of 99th percentiles for cardiac troponin concentrations has not been assessed systematically in a single population for a large number of assays. METHODS We determined 99th percentiles for 19 cardiac troponin assays in heparin plasma samples from a population of 272 and 252 presumably healthy males and females, respectively. The assays evaluated included...

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