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Citation Reports (citation + report)
Kinds of Citation Reports Selected AbstractsPrice development in important anesthesia and critical care medicine journals in comparison to journals of other disciplinesACTA ANAESTHESIOLOGICA SCANDINAVICA, Issue 4 2001J. Boldt Background: In today's climate of financial restrictions, libraries and individual subscribers complain about the price increase of scientific journals. The development in prices of anesthesia/critical care journals was analysed over the past 6 years and compared to prices of some journals of other disciplines. Methods: Important journals in the categories Anesthesiology, Emergency Medicine & Critical Care, Surgery, Medicine (General), and Cardiac & Cardiovascular Systems listed in the 1999 Science Citation Index of Journal Citation Report were included and prices for the years 1995 to 2000 were analysed. Results: Increase in prices ranged from +13% to +199%. The mean increase in journal prices was lowest in the category Anesthesiology (+61%), higher in the category Critical Care (+73%), and highest in the category Medicine, General (+101%). Changes in the impact factor (IF) varied widely, ranging from a decrease (Lancet: ,43%; J Neurosurg Anesth: ,44%) to a tremendous increase (e.g. Reg Anesth +165%; Ann Emerg Med +149%). The journals' size (number of articles or pages) did not increase proportionally with the increase in prices. Conclusion: A disproportionate rise in journal prices was seen over the past 6 years. The large increase in cost may have multiple reasons. The rapidly increasing cost of research journals may affect research quality because economic pressure may result in reduction in availibility of information due to cancellation of subscriptions to journals. [source] Changes in the impact factor of anesthesia/critical care journals within the past 10 yearsACTA ANAESTHESIOLOGICA SCANDINAVICA, Issue 7 2000J. Boldt Background: The impact factor (IF) is published by the Institute for Scientific Information (ISI). There is a tendency to assess quality of scientific journals with the help of the IF. An analysis of the changes in the IF over time in the different specialities may help to further enlighten the worth and problems of the IF. Methods: The IFs listed under the subheadings Anesthesiology and Emergency Medicine & Critical Care in the Science Citation Index , Journal Citation Report were descriptively analysed over the past 10 years. Additionally, IFs of some other important journals (subheadings Surgery, Cardiovascular, General Medicine) were analysed. Results: The IF of most of the journals showed a constant increase over the years (average in Anesthesiology: +65%; average in Emergency Medicine & Critical Care: +145%). IFs of the highest ranked journals of other specialities showed a similar increase over the years (average in surgical journals: +56%; average in cardiac journals: +59%; average in general journals: +40%). More Anesthesiology and Emergency Medicine & Critical Care journals originated from the USA show an IF >2.0 over the past 10 years than do European journals. Conclusion: Although the value of the IF is highly controversial, it is a frequently used tool to assess rating of a medical journal. Anesthesiology and Emergency Medicine & Critical Care journals showed a continuous increase in the IF over the past 10 years. [source] The continuing rise of contact dermatitis, Part 2: The scientific journalCONTACT DERMATITIS, Issue 4 2009Derek R. Smith Background: Although citation analysis represents an increasingly common method for examining the performance of scientific journals, few longitudinal studies have been conducted in the specialist fields of dermatology. Objectives: The objective of this study was to provide the first comprehensive bibliometric analysis of Contact Dermatitis for the 30-year period between 1977 and 2006. Materials and Methods: Detailed historical data were extracted from the Thomson Reuters Journal Citation Reports® and systematically analysed. The most highly cited articles published in the journal were also identified and then examined for citation frequency and lag time. Results: Citation analysis showed that the impact factor of Contact Dermatitis has increased significantly over the past 30 years, experiencing a sixfold improvement between 1977 and 2006. Conclusions: Bibliometric trends as identified in the current study clearly demonstrate the ongoing rise of Contact Dermatitis, from early beginnings in the mid-1970s, into the leading scientific periodical we know today. [source] Definition and identification of journals as bibliographic and subject entities: Librarianship versus ISI Journal Citation Reports methods and their effect on citation measuresJOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION SCIENCE AND TECHNOLOGY, Issue 6 2009Stephen J. Bensman This paper explores the ISI Journal Citation Reports (JCR) bibliographic and subject structures through Library of Congress (LC) and American research libraries cataloging and classification methodology. The 2006 Science Citation Index JCR Behavioral Sciences subject category journals are used as an example. From the library perspective, the main fault of the JCR bibliographic structure is that the JCR mistakenly identifies journal title segments as journal bibliographic entities, seriously affecting journal rankings by total cites and the impact factor. In respect to JCR subject structure, the title segment, which constitutes the JCR bibliographic basis, is posited as the best bibliographic entity for the citation measurement of journal subject relationships. Through factor analysis and other methods, the JCR subject categorization of journals is tested against their LC subject headings and classification. The finding is that JCR and library journal subject analyses corroborate, clarify, and correct each other. [source] Distributional differences of the impact factor in the sciences versus the social sciences: An analysis of the probabilistic structure of the 2005 journal citation reportsJOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION SCIENCE AND TECHNOLOGY, Issue 9 2008Stephen J. Bensman This paper examines the probability structure of the 2005 Science Citation Index (SCI) and Social Sciences Citation Index (SSCI) Journal Citation Reports (JCR) by analyzing the Impact Factor distributions of their journals. The distribution of the SCI journals corresponded with a distribution generally modeled by the negative binomial distribution, whereas the SSCI distribution fit the Poisson distribution modeling random, rare events. Both Impact Factor distributions were positively skewed,the SCI much more so than the SSCI,indicating excess variance. One of the causes of this excess variance was that the journals highest in the Impact Factor in both JCRs tended to class in subject categories well funded by the National Institutes of Health. The main reason for the SCI Impact Factor distribution being more skewed than the SSCI one was that review journals defining disciplinary paradigms play a much more important role in the sciences than in the social sciences. [source] Firm-like behavior of journals?JOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION SCIENCE AND TECHNOLOGY, Issue 1 2005Scaling properties of their output, impact growth dynamics In the study of growth dynamics of artificial and natural systems, the scaling properties of fluctuations can exhibit information on the underlying processes responsible for the observed macroscopic behavior according to H.E. Stanley and colleagues (Lee, Amaral, Canning, Meyer, & Stanley, 1998; Plerou, Amaral, Gopikrishnan, Meyer, & Stanley, 1999; Stanley et al., 1996). With such an approach, they examined the growth dynamics of firms, of national economies, and of university research fundings and paper output. We investigated the scaling properties of journal output and impact according to the Journal Citation Reports (JCR; ISI, Philadelphia, PA) and find distributions of paper output and of citations near to lognormality. Growth rate distributions are near to Laplace "tents," however with a better fit to Subbotin distributions. The width of fluctuations decays with size according to a power law. The form of growth rate distributions seems not to depend on journal size, and conditional probability densities of the growth rates can thus be scaled onto one graph. To some extent even quantitatively, all our results are in agreement with the observations of Stanley and others. Further on, a Matthew effect of journal citations is confirmed. If journals "behave" like business firms, a better understanding of Bradford's Law as a result of competition among publishing houses, journals, and topics suggests itself. [source] National representation in the anaesthesia literature: a bibliometric analysis of highly cited anaesthesia journals,ANAESTHESIA, Issue 8 2010M. D. Bould Summary While previous studies have investigated the country of origin of anaesthetic publications, they have generally used a medline computer search to identify original articles and have often excluded non-English language articles. We undertook a hand-search of journals in the Journal Citation Reports® using the subject category of Anesthesiology. We quantified the number of original articles, editorials, review articles, case reports and correspondence attributed to each country. We also calculated the proportion of articles of each type from countries of each national income category. We analysed 9684 articles published in 2007 and 2008. The United States published more original articles than any other country. High-income countries published 89.2% of original articles, middle-income countries 10.5%, and low-income countries just 0.3%. There were more articles published by middle-income countries during the study period than a decade earlier, notably from Turkey, China and India. We discuss barriers to publications from low-income countries. [source] Distributional differences of the impact factor in the sciences versus the social sciences: An analysis of the probabilistic structure of the 2005 journal citation reportsJOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION SCIENCE AND TECHNOLOGY, Issue 9 2008Stephen J. Bensman This paper examines the probability structure of the 2005 Science Citation Index (SCI) and Social Sciences Citation Index (SSCI) Journal Citation Reports (JCR) by analyzing the Impact Factor distributions of their journals. The distribution of the SCI journals corresponded with a distribution generally modeled by the negative binomial distribution, whereas the SSCI distribution fit the Poisson distribution modeling random, rare events. Both Impact Factor distributions were positively skewed,the SCI much more so than the SSCI,indicating excess variance. One of the causes of this excess variance was that the journals highest in the Impact Factor in both JCRs tended to class in subject categories well funded by the National Institutes of Health. The main reason for the SCI Impact Factor distribution being more skewed than the SSCI one was that review journals defining disciplinary paradigms play a much more important role in the sciences than in the social sciences. [source] | ||||||||||