نتایج جستجو برای: impact factor

تعداد نتایج: 1556367  

Journal: :iranian endodontic journal 0
saeed asgary sedigeh sabbagh mohammad jafar eghbal

introduction:   the aim of this survey was to illustrate statistical information about endodontic research published in pubmed index journals from the different universities of iran. materials and methods: a pubmed search was performed to retrieve the endodontic publications of authors affiliated to different universities of iran. abstracts were reviewed and unrelated articles were omitted. cit...

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...

Journal: :iranian journal of public health 0
seyed javad ghazi mirsaeid nadia motamedi nahid ramezan ghor­bani

background: in this study, the impact of self-citation (journal and author) on impact factor of iranian english medical journals in two international citation databases, web of science (wos) and islamic world science citation center (isc), were compared by citation analysis. methods: twelve journals in wos and 26 journals in isc databases indexed between the years (2006-2009) were selected and ...

2017
Thed N. van Leeuwen Paul F. Wouters

In this article, we present the results of an analysis that describes the research centered on Journal Impact Factors (JIFs). The purpose of the analysis is to make a start of studying part of the field of quantitative science studies that relates to the most famous and classic bibliometric indicator around and to see what characteristics apply to the research on JIFs. In this article, we start...

2017
Lin Zhang Ronald Rousseau Gunnar Sivertsen

The scientific foundation for the criticism on the use of the Journal Impact Factor (JIF) in evaluations of individual researchers and their publications was laid between 1989 and 1997 in a series of articles by Per O. Seglen. His basic work has since influenced initiatives such as the San Francisco Declaration on Research Assessment (DORA), the Leiden Manifesto for research metrics, and The Me...

2017
Sandra L. Schmid

The San Francisco Declaration on Research Assessment (DORA) was penned 5 years ago to articulate best practices for how we communicate and judge our scientific contributions. In particular, it adamantly declared that Journal Impact Factor (JIF) should never be used as a surrogate measure of the quality of individual research contributions, or for hiring, promotion, or funding decisions. Since t...

2010

On the advice of Research Committee, NHMRC will no longer request Journal Impact Factors (JIF) as part of any applications for funding nor use these in peer review of individual applications. Journal Impact Factor is not a sound basis upon which to judge the impact of individual papers. The JIF of any journal does not describe the impact, importance or quality of any individual paper. Instead, ...

Journal: :Journal of the American Academy of Dermatology 2007
Robert P Dellavalle Lisa M Schilling Marko A Rodriguez Herbert Van de Sompel Johan Bollen

BACKGROUND Thomson Institute for Scientific Information's journal impact factor, the most common measure of journal status, is based on crude citation counts that do not account for the quality of the journals where the citations originate. This study examines how accounting for citation origin affects the impact factor ranking of dermatology journals. METHODS The 2003 impact factors of derma...

Journal: :The American psychologist 2018
Anne E Kazak

In this editorial, the author notes that this issue of American Psychologist features a pair of important articles related to newly updated standards for reporting research in psychology in scientific journals, covering both quantitative (Appelbaum et al., 2018) and qualitative (Levitt et al., 2018) research. The increasing breadth and complexity of research, and the importance of communicating...

2008
Tove Faber Frandsen

This paper investigates the mechanism of the Journal Impact Factor (JIF). Although created as a journal selection tool the indicator is probably the central quantitative indicator for measuring journal quality. The focus is journal self-citations as the treatment of these in analyses and evaluations is highly disputed. The role of self-citations (both self-citing rate and self-cited rate) is in...

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