Navegando por Palavras-chave "scientometrics"
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- ItemSomente MetadadadosArticles with authors affiliated to Brazilian institutions published from 1994 to 2003 with 100 or more citations: I - The weight of international collaboration and the role of the networks(Acad Brasileira De Ciencias, 2006-12-01) Packer, Abel Laerte; Meneghini, Rogerio [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; 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 (Meneghini and Packer 2006). The regional and institutional affiliation distributions of these articles follow approximately that of the total of Brazilian articles in the ISI database. However, some significant deviations are observed derived from the outstanding performance of a few groups responsible for the publication of the HC-ISI (Highly cited ISI) papers. The international collaboration and the network organization of work played a fundamental role in these results. It is evident that the role played by organizations in research networks as well as the international collaborations exerted strong influence, in the impact of these articles, although with distinct amplitude in the different fields.
- 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 MetadadadosAssessment of the scientific-technological production in molecular biology in Brazil (1996-2007): the contribution of genomics programs(Acad Brasileira De Ciencias, 2011-06-01) Meneghini, Rogerio [UNIFESP]; Gamba, Estevao Andre Cabestre [UNIFESP]; Universidade Federal de São Paulo (UNIFESP)Several genome sequencing programs were launched in Brazil by the end of the nineties and the early 2000s. The most important initiatives were supported by the ONSA program (http://watson.fapesp.br/onsa/Genoma3.htm) and aimed at gaining domain in genomic technology and bringing molecular biology to the state of art. Two main sets of data were collected in the 1996-2007 period to evaluate the results of these genome programs: the scientific production (Scopus and Web of Science databases) and the register of patents (US Patent and Trademark Office), both related to the progress of molecular biology along this period. In regard to the former, Brazil took a great leap in comparison to 17 other developed and developing countries, being only surpassed by China. As to the register of patents in the area of molecular biology, Brazil's performance lags far behind most of the countries focused in the present study, confirming the Brazilian long-standing tendency of poor achievements in technological innovations when compared with scientific production. Possible solutions to surpass this inequality 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.