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Monday, June 21, 2010

Impact factor of journals
It is a measure of reflecting the average number of citations to article published in science, engineering, social science and technology. Those who are pursuing Ph.D.s and publishing journals should know about impact factor of the particular journals. This article mainly for those who wish to publish journals of some standard and impact factor.
Most of Universities are recommending their scholars to publish journals of high impact factor.
Most of the recent journals are paid journals which have no impact factor. They do even not reviewing the articles received and publishing it in their journals for sack of earning money.
What is impact factor?
It is a qualitative measure of any journals published. Based on the impact factor, we can judge the relative importance of journals. Impact factors are calculated yearly for those indexed in Thomson Reuters.

The formula used for IM is
A = the number of times articles published in 2008 and 2009 were cited by indexed journals during 2008
B = the total number of "citable items" published in 2008 and 2009. ("Citable items" are usually articles, reviews, proceedings, or notes; not editorials or Letters-to-the-Editor.)
2008 

impact factor = A/B

The 2009 impact factors are actually published in 2010; they cannot be calculated until all of the 2009 publications have been received by the indexing agency.


The Journal Citation Reports also includes the Five year impact factor. This factor varies from year to year. The impact factors of journals are available in excel format. The can be freely downloaded from scopus site.

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