The Research Impact of Open Access Journal Articles
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Date
2007Author
Tonta, Yaşar
Ünal, Yurdagül
Al, Umut
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The availability of scientific and intellectual works freely through scientists’ personal web sites, digital
university archives or through the electronic print (eprint) archives of major scientific institutions has
radically changed the process of scientific communication within the last decade. The “Open Access”
(OA) initiative is having a tremendous impact upon the scientific communication process, which is
largely based on publishing in scientific periodicals. This exploratory paper investigates the research
impact of OA articles across the subject disciplines. The research impact of OA articles as measured
by the number of citations varies from discipline to discipline. OA articles in Biology and Economics
had the highest research impact. OA articles in hard, urban, and convergent fields such as Physics,
Mathematics, and Chemical Engineering did not necessarily get cited most often.