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of lengthy papers. Selective coverage of the scientific literature, the bias in favor of English language journals and the differences among disciplines are the most considerable limitations of ISI's database according to Kousha and Thelwall ( 2008

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, has yet verified directly whether the scientific literature is enduring actual changes in content. One of the most worrying distortions that scientific knowledge might endure is the loss of negative data. Results that do not confirm

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Scientometrics
Authors: Gregorio González-Alcaide, Juan Carlos Valderrama-Zurián, and Rafael Aleixandre-Benavent

USA, did not differ significantly from that of the journals in English originating in other countries. In some areas, such as dental literature , Epidemiology (Filion and Pless 2008 ) or Ecology (Leimu and Koricheva 2005 ), a direct relation has

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any other, the economic value or impact may be quite different between any two of them. Therefore, the literature has proposed several approaches to reweight patent counts with complementing data which is believed to grasp aspects of quality or

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literature database, known as “Web of Science” or ISI. The scope of our literature search is limited to the years 1993 through 2008. The ISI retrieves data from three different citation databases (SCI-EXPANDED, SSCI, A&HCI), and covers many high

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incredible pace with new discoveries being reported in the scientific literature on a weekly basis. It should therefore be interesting and timely to take a look at how this field has been developing and what its social and intellectual structures are, to

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, involving both a literature study and the analysis of primary data on citations to South African authored scientific journal contributions to the field of invasion ecology. The contribution of the paper is situated primarily in the methodological realm, by

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. Research tools This paper chooses CiteSpace as the research method to assist analysis in this study. CiteSpace is a java application developed by Dr. Chaomei Chen for analyzing and visualizing emerging trends and changes in scientific literature

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. Literature review E-Government for implementing direct democracy Since the U.S. government introduced its e-government initiative in 1993, the Internet has been widely recognized as a key medium for renewing the government and

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existing literature can be summarized as follows: (i) the type of mobility that has been addressed by most studies—with the exception of those conducted in Spain- is changes in jobs or positions, either at the geographical or sectoral level; 6 (ii) the

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