23-09-2010, 01:30 PM
This article is presented by: Andreas Strotmann and Dangzhi Zhao
ABSTRACT
We explore the impact of Open Access (OA) on stem cell research through a comparison of research reported in OA and in non-OA publications. Using an author co-citation analysis method, we find that (a) OA and non-OA publications cover similar major research areas in the stem cell field, but (b) a more diverse range of basic and medical research is reported in OA publications, while © biomedical technology areas appear biased towards non-OA publications. It appears that OA helps maintain diversity of research in this highly interdisciplinary field, and hence contributes to a healthy balance of scientific advancement. Since S. Lawrence's 2001 Nature paper claiming that “Free online availability increases a paper's impact” (Lawrence, 2001), many studies have investigated whether Open Access (OA) publication of research results has a positive effect on the citation ranking of those publications, on the assumption that early and wide availability of research will result in a citation advantage. Swan (2010) surveys more than 30 studies testing, measuring, or otherwise analyzing this effect. Other studies ask how popular the OA publishing idea is among scientists as readers and as writers, respectively. (Mann, et al., 2009). In this paper, we approach the comparison between OA and non-OA publishing of research results from a somewhat different perspective. We explore whether there are substantial differences between the intellectual structure of a research field when viewed from either the point of view of the OA publications in that field or from that of its non-OA publications. Results from this comparison may shed light on issues such as which research areas of a scientific field tend towards OA and how OA publishing has impacted the research in a field.
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