impact factor


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impact factor

mathematical expression of frequency with which a given medical journal's original articles are cited in other medical journals.

im·pact fac·tor

(im'pakt fak'tŏr)
Mathematic expression of frequency with which a particular medical journal's original articles are cited in other medical journals.
References in periodicals archive ?
Our 2014 performance according to Impact Factor is very encouraging, but we believe that excellence can and should be measured in a variety of ways.
A recent article by Labadie and Fitzpatrick suggested the use of a percentile-based impact factor to allow for comparisons between specialties.
We use the Currency Factor in this article as it is closest to JCR's most widely cited measure, JCR's Impact Factor.
The Journal is currently ranked in the 14th position worldwide among 333 journals under the "Economics" category of the ISI Web of Science, based on values of Impact Factors (IF) published by the Thomson Reuter's Institute for Scientific Information (ISI) Web of Knowledge Journal Citation Reports.
The impact factor is simply based on the number of citations that a journal receives over a year.
For decades, the impact factor developed by Eugene Garfield, just like the Times Higher Education system, has dominated the bibliometric landscape.
We analyzed the articles and tabulated the data according to the number of citations, country and institute of origin, journal, impact factor, authorship and subspecialty.
Clinical Chemistry is pleased to report an increase in the impact factor to 7.
Noruzi (2005) invested the web impact factor for the Iranian universities and introduced a new system of measurement.
An impact factor gives an indication of a Journal's influence by measuring the frequency with which a published article is cited in other Journals within a specific year (Brown & Williams, 2011).
Selecting the journal for submitting manuscripts is now influenced by a number of factors and in particular the impact factor of a journal.
The number of published papers is lesser in 2011 than in 2010; thus we expect a notable increase in the impact factor.