Intellectual structure in stem cell research: exploring Brazilian scientific articles from 2001 to 2010
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With the advent of co-citation techniques in the 1960’s, studies on citation shifted from simple quantifications of the number of citations per document to more complex analyses focusing on the relationship between citations. The present study seeks to map the scientific and cognitive structure of Brazilian stem cell publications. Brazilian publications from 2001 to 2010 were retrieved from the Web of Science database, and data on journal co-citations were processed with the help of VOSViewer software. The results indicated that Brazilian stem cell publications are characterised by a strong emphasis on co-cited journals in the fields of biochemistry and molecular biology, cell biology and haematology. Such characteristics suggest that Brazilian stem cell research is oriented both towards the treatment of a variety of human diseases and injuries caused by accidents (research with stem cells) as well as the understanding of stem cells’ mechanisms of division, differentiation and self-renewal (research on stem cells), the most promising facet of stem cells. The progress in Brazilian stem cell research likely results from a combination of a federal law established in the 2000’s, which regulates stem cell use and research, and the growth of Brazilian science.
KeywordsCo-citation Journal co-citation Brazilian science Stem cell
The authors thank Dr. Fabio Castro Gouveia and Dr. Stevens Kastrup Rehen for their critical review of the manuscript. Authors are also grateful to Capes/Brazilian Ministry Education that awarded a fellowship to Raymundo das Neves Machado (Process No. 8264-13-9).
- Barfoot, J., Kemp, E., Doherty, K., Blackburn, C., Sengoku, S., van Servellen, A., Gavai, A., & Karlsson, A. (2013). Stem cell research: Trends in and perspectives on the evolving international landscape. http://www.eurostemcell.org/story/stem-cell-research-trends-and-perspectives-evolving-international-landscape. Accessed on 25 June 2013.
- Batagelj, V., & Mrvar, A. (2010). Pajek: Program for analysis and visualization of large networks. Reference manual list of commands with short explanation version 2.00. University of Ljubljana, Slovenia.Google Scholar
- Carvalho, M. A., Coelho, C. J., Carvalho, Y. K., Silva, M. A., Marques, L. G., & Santos, M. R. (2014). Correlação entre publicações científicas e patentes com células-tronco pluripotente induzidas (ips): bases para uma prospecção tecnológica. Revista GEINTEC, 4(5), 1574–1582. http://www.revistageintec.net/portal/index.php/revista/article/view/492. Accessed on 25 January 2015.
- Hair, J. F, Jr, Black, W. C., Babin, B. J., Anderson, R. E., & Tatham, R. L. (2009). Análise multivariada de Dados (6th ed.). Porto Alegre: Bookman.Google Scholar
- Hanneman, R. A., & Riddle, M. (2005) Introduction to social network methods. Riverside, CA: University of California, Riverside. Published in digital form at http://faculty.ucr.edu/~hanneman.
- Machado, R. N., & Leta, J. (2013). Trends of intellectual and cognitive structures of stem cell research: A study of Brazilian scientific. In: 14th international society for scientometrics and informetrics conference, 2013, Vienna. Proceedings of the ISSI 2013. Viena: Facultas Verlags-und Buchhandels AG, vol. 2, pp 1759–1771.Google Scholar
- Marshakova, I. V. (1973). A system of document connection based on references. Scientific and Technical Information Serial of VINITI, 6(2), 3–8.Google Scholar
- Moya-Anegón, F., Vargas-Quesada, B., Herrero-Solana, V., Chinchilla-Rodríguez, Z., Corera-Álvarez, E., & Muñoz-Fernández, F. J. (2004). A new technique for building maps of large scientific domains based on the cocitation of classes and categories. Scientometrics, 61(1), 129–145.CrossRefGoogle Scholar
- Rehen, S., & Paulsen, B. (2007). Células-tronco: o que são? Para que servem?. Rio de Janeiro: Vieira & Lente.Google Scholar
- Reuters, T. (2012). Science Citation Index expanded. Scope notes. http://ipscience.thomsonreuters.com/mjl/scope/scope_scie/#YU. Accessed on 21 October 2013.
- Ruiz, M. A. (2013). Cell therapy in Brazil: Time for reflection. Brazilian Journal of Hematology and Hemotherapy, 35(5), 296–298. doi:http://www.rbhh.org/?doi=10.5581/1516-8484.20130117.
- Van Eck, N. J., & Waltman, L. (2011). Text mining and visualization using VOSviewer. ISSI Newsletter, 7(3), 50–54.Google Scholar
- Van Eck, N. J., & Waltman, L. (2013). VOSviewer manual. Manual for VOSviewer version 1.5.5. dec.Google Scholar