نتایج جستجو برای: journal impact factor

تعداد نتایج: 1674146  

Journal: :JASIST 2013
Chaoqun Ni Debora Shaw Sean M. Lind Ying Ding

Journals in the " Information Science and Library Science " category of Journal Citation Reports (JCR) were compared using both bibliometric and bibliographic features. Data collected covered: journal impact factor, number of issues per year, number of authors per paper, longevity, editorial board membership, frequency of publication, number of databases indexing the journal, number of aggregat...

Journal: :J. Informetrics 2014
Pablo Dorta-González María-Isabel Dorta-González Dolores-Rosa Santos-Peñate Rafael Suárez-Vega

The journal impact factor is not comparable among fields of science and social science because of systematic differences in publication and citation behaviour across disciplines. In this work, a source normalization of the journal impact factor is proposed. We use the aggregate impact factor of the citing journals as a measure of the citation potential in the journal topic, and we employ this c...

جعفرزاده, عبدالله, جلال پور, شیلا, رضاییان, محسن,

Background and Objectives: Immunology is the science of prevention of entry and encounter with internal and external antigenes, with the aim of preserving the body's natural homeostasis. Due to the importance of immunology in prevention and treatment of diseases and concerning the multiplicity of published journals in this field, this study was performed to introduce the most prestigious specia...

ایوبی, فاطمه, جلال پور, شیلا, رحمانی, محمدرضا, رضائیان, محسن, شکرالله , آثار,

Background and Objective: Publishing articles in specialized journals that are prestigious indexing with international distribution have led scientists to validate the results of the research area. In this case, it may increase and promote the situation of the scientist and the country that research has been done in it. Considering the importance of this issue, the present study aimed to i...

2003
Eugene Garfield

The impact factor and other bibliometric indicators are currently utilized in most countries to evaluate institutions, scientific research, entire journals, and individual articles. This article addresses some of the most frequently asked questions about the impact factor and its application. The impact factor’s origin and methods of calculating it are examined. Also, discussed are the effects ...

2017
Zao Liu

This paper examines the relationships between the journal impact factor and the h-type indices in virology journals. The virology journals and their 2010 journal impact factors were retrieved from Journal Citation Reports. The h-index and the g-index values of the journals for 2007-2011 were obtained from Web of Science and Google Scholar. The journals were ranked by their journal impact factor...

Journal: :CoRR 2015
Rasim M. Alguliyev Ramiz M. Aliguliyev Nigar Ismayilova

Nowadays impact factor is the significant indicator for journal evaluation. In impact factor’s calculation is used number of all citations to journal, regardless of the prestige of cited journals, however, scientific units (paper, researcher, journal or scientific organization) cited by journals with high impact factor or researchers with high Hirsch index are more important than objects cited ...

2012
Chia-Lin Chang Esfandiar Maasoumi Michael McAleer

The paper focuses on the robustness of rankings of academic journal quality and research impact in general, and in Economics, in particular, based on the widely-used Thomson Reuters ISI Web of Science citations database (ISI). The paper analyses 299 leading international journals in Economics using quantifiable Research Assessment Measures (RAMs), and highlights the similarities and differences...

2007
Anne-Wil Harzing Ron van der Wal

We propose a new metric and data source to assess journal impact in the field of Economics & Business. The metric – Hirsch’s h-index – improves on the traditionally used ISI Journal Impact Factor by providing a more robust and less time-sensitive measure of journal impact. The data source – Google Scholar – provides a more comprehensive coverage of citations than ISI, including citations in boo...

Journal: :Family practice 2007
Mieke L van Driel Manfred Maier Jan De Maeseneer

The ultimate goal of research in medicine, a spectrum starting with basic biomedical research via clinical trials to implementation research, is to improve the health and the quality of life of individuals and communities. Research should therefore be of the very best quality and assessment of its quality is important. Traditionally, research and researchers are evaluated by means of the ‘scien...

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