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The embargo period before an article is made available for free can vary from a few months to two or more years. In a 2013 study, 77.8% of delayed open access journals analyzed had an embargo of 12 months or less. 85.4% had an embargo period of 24 months or less. [1] [2] A journal subscription or an individual article purchase fee would be ...
May 23, 2013 · Delayed open access (OA) refers to scholarly articles in subscription journals made available openly on the web directly through the publisher at the expiry of a set embargo period. Although a substantial number of journals have practiced delayed OA since they started publishing e-versions, empirical studies concerning OA have often overlooked ...
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PNAS is a delayed open-access journal, with an embargo period of six months that can be bypassed for an author fee (hybrid open access). Since September 2017, open access articles are published under a Creative Commons license. Since January 2019, PNAS has been online-only, although print issues are available on demand.
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Oct 19, 2017 · At the time of the study (early 2016), the majority of scholarly journals distributed by Érudit had delayed open access status. > Immediate open access means that journal articles are accessible to all, without subscription, as soon as they are put online. By comparing the evolution of article downloads published at the same time in delayed ...
The number of open access journals increased by an estimated 500% during the 2000–2009 decade. Also, the average number of articles that were published per open access journal per year increased from approximately 20 to 40 during the same period, resulting in that the number of open access articles increased by 900% during that decade.
Jun 5, 2012 · Mikael Laakso, Bo‐Christer Björk, Delayed open access: An overlooked high‐impact category of openly available scientific literature, Journal of the American Society for Information Science and Technology, 10.1002/asi.22856, 64, 7, (1323-1329), (2013).
Oct 13, 2016 · We find that a journal's academic status (impact factor) and accessibility (open access policy) both strongly increase the probability of it being referenced on Wikipedia. Controlling for field and impact factor, the odds that an open access journal is referenced on the English Wikipedia are 47% higher compared to paywall journals.
