Scientific Output Indicators and Scientific Collaboration Network Mapping in Brazil
Scientific Output Indicators and Scientific Collaboration Network Mapping in Brazil
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巴西的科学产出指标和科学合作网络绘图
DOI：
10.1080/09737766.2012.10700942
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发表时间：
2012
影响因子：
1
通讯作者：
I. R. C. Stumpf
中科院分区：
文献类型：
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作者：
Samile Andréa de Souza Vanz;I. R. C. Stumpf
本研究对2004 - 2006年间巴西SCI收录文章进行调查，旨在了解巴西科学界的科学合作情况。通过对49046篇文章的审查，可以看出，在此期间，全国科学产出每年都在增加，论文发表在大量期刊上，其中15.7%是国家出版物。最多产的领域是化学、生物学、物理学和临床和实验医学II。确定了几个机构的作者，这表明巴西尚未建立统一的出版模式，因为几个机构只发表了一篇文章（59.1%）。在此期间，个人之间的合作出版物有所增加，约占全国产出的96%。每篇文章的平均作者数为6.3人。科学产出集中在少数机构，主要是位于特定地区的公立大学。每篇文章的平均机构数量为2.4个，在最具生产力的机构中，机构内共同发表的做法尤为突出。运用相关协同指标和多变量分析，发现区域集团已形成。在此期间，国际共同发表的百分比有所下降，占文章总数的30.3%。美国、法国、英国和德国是文章数量最多的合作伙伴；然而，相关指数显示，美国和阿根廷是主要的合作伙伴。国际合作的动机似乎有历史、语言和地理邻近的原因。
This is an investigation of Brazilian articles indexed by SCI between 2004 and 2006 with the purpose of understanding the scientific collaboration in the Brazilian community. The 49,046 articles that have been examined show that national scientific output increased every year during the period and that articles were published in a great number of journals, 15.7% of which were national publications. The most productive areas are Chemistry, Biology, Physics and Clinical and Experimental Medicine II. Authors from several institutions were identified, which indicates Brazil has yet to establish a consolidated pattern of publication, since several of the institutions contributed only one article (59.1%). Co-publication between individuals increased in the period, representing about 96% of national output. The mean number of authors per article is 6.3. Scientific output is concentrated in few institutions, mostly public universities located in specific regions. The mean number of institutions per article is 2.4, and looking into the most productive institutions, the practice of intra-institutional co-publication stood out. When relative collaboration indices and multivariate analysis were applied, regional groups proved to be formed. International co-publication decreased in percentage in the period, representing 30.3% of the total articles. The USA, France, the United Kingdom and Germany are the biggest partners in terms of articles; however, relative indices reveal the USA and Argentina are the main partners. Motivation for international collaboration seems to follow historical, linguistic and geographical proximity reasons.