Navegando por Palavras-chave "bibliometrics"
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- ItemAcesso aberto (Open Access)Articles with authors affiliated to Brazilian institutions published from 1994 to 2003 with 100 or more citations: II - Identification of thematic nuclei of excellence in Brazilian science(Acad Brasileira de Ciencias, 2006-12-01) Meneghini, Rogerio [UNIFESP]; Packer, Abel Laerte [UNIFESP]; WHO; Universidade Federal de São Paulo (UNIFESP)Articles with 100 citations or more in the scientific literature and with at least one author with Brazilian affiliation, were identified in the Thomson-ISI (Institute for Scientific Information) Web of Science bibliometric database covering a 10-year period, from 1994 to 2003 (see Packer and Meneghini 2006); 248 (0.23%) out of a total of 109,916 articles with Brazilian affiliation were identified. This study was primarily carried out to identify thematic nuclei of excellence in research that had major impact in the international literature. Twelve of these nuclei in the fields of Biomedicine, Medicine, Biology, Physic, Chemistry and Astronomy were considered outstanding and their genesis and development were described. the weight of factors such as international collaboration and network organization are distinct in these areas and the reasons for that are discussed.
- ItemSomente MetadadadosComparison of scientists of the Brazilian Academy of Sciences and of the National Academy of Sciences of the USA on the basis of the h-index(Assoc Bras Divulg Cientifica, 2008-04-01) Mugnaini, R. [UNIFESP]; Packer, Abel Laerte [UNIFESP]; Meneghini, Rogerio [UNIFESP]; Universidade Federal de São Paulo (UNIFESP); Ctr Latino Amer & Caribe Informacao Ciencias SaudA new scientometric indicator, the h-index, has been recently proposed (Hirsch JE. Proc Natl Acad Sci 2005; 102: 16569-16572). The index avoids some shortcomings of the calculation of the total number of citations as a parameter to evaluate scientific performance. Although it has become known only recently, it has had widespread acceptance. A comparison of the average h-index of members of the Brazilian Academy of Sciences (BAS) and of the National Academy of Sciences of the USA (NAS-USA) was carried out for 10 different areas of science. Although, as expected, the comparison was unfavorable to the members of the BAS, the imbalance was distinct in different areas. Since these two academies represent, to a significant extent, the science of top quality produced in each country, the comparison allows the identification of the areas in Brazil that are closer to the international stakeholders of scientific excellence. The areas of Physics and Mathematics stand out in this context. The heterogeneity of the h-index in the different areas, estimated by the median dispersion of the index, is significantly higher in the BAS than in the NAS-USA. No elements have been collected in the present study to provide an explanation for this fact.
- ItemAcesso aberto (Open Access)Em busca da eficiência: visibilidade internacional da produção científica dos programas brasileiros de pós-graduação em saúde infantil e do adolescente entre 1998 e 2003(Sociedade Brasileira de Pediatria, 2007-10-01) Goldani, Marcelo Z.; Gurgel, Ricardo Q.; Blank, Danilo; Gerolin, Jerônimo [UNIFESP]; Mari, Jair de Jesus [UNIFESP]; Universidade Federal do Rio Grande do Sul Faculdade de Medicina Departamento de Pediatria; Universidade Federal de Sergipe Núcleo de Pós-Graduação em Medicina Departamento de Medicina; Universidade Federal de São Paulo (UNIFESP)OBJECTIVE:To assess the trend in the number of published articles by Brazilian graduate programs in child and adolescent health and the proportion of such publications cited in MEDLINE and Thomson Scientific's Journal Citation Reports (JCR), using the former database as a proxy for efficiency and the latter as an indicator of visibility. METHODS: We assessed the trends of 14 graduate programs concerning the number of theses, dissertations, and articles cited in MEDLINE and JCR, through secondary data from the latest two triennial evaluations carried out by the Brazilian Federal Agency for the Improvement of Higher Education (Coordenação de Aperfeiçoamento de Pessoal de Nível Superior, CAPES) between 1998 and 2000 and between 2001 and 2003). RESULTS:The number of published articles increased (1,520 to 1,917), as did the median number of articles cited both in MEDLINE (32.5 to 45) and in JCR (24.5 to 27). The median number of dissertations rose from 19.5 to 26.5; the median number of theses went up from 12 to 13.5. The median number of faculty advisors decreased (21.5 to 18.4). CONCLUSION: Graduate programs in child and adolescent health became more efficient in producing knowledge through the publication of more articles with broader international visibility. Such trend was contradictorily accompanied by a diminishing number of advisors.