Leydesdorff, L et al Is the United States losing ground in science? A global perspective on the world science system in 2005 PROCEEDINGS OF ISSI 2007: 11TH INTL. CONF. OF THE ISSI, VOLS I AND II 499-507, 2007

Eugene Garfield garfield at CODEX.CIS.UPENN.EDU
Wed Jan 16 11:00:32 EST 2008


Email address:loet at leydesdorff.net

Author(s): Leydesdorff, L (Leydesdorff, Loet); Wagner, C (Wagner, Caroline)
 
Title: Is the United States losing ground in science? A global perspective 
on the world science system in 2005 

Editor(s): TorresSalinas, D; Moed, HF 

Source: PROCEEDINGS OF ISSI 2007: 11TH INTERNATIONAL CONFERENCE OF THE 
INTERNATIONAL SOCIETY FOR SCIENTOMETRICS AND INFORMETRICS, VOLS I AND II 
499-507, 2007 

Language: English 
Document Type: Article 

Conference Title: 11th International Conference of the International-
Society-for-Scientrometrics-and-Informetrics 

Conference Date: JUN 25-27, 2007 

Conference Location: Madrid, SPAIN 

Conference Sponsors: Int Soc Scientrometr & Informetr, CSIC, Minist Educ & 
Ciencia, FECYT, Comunidad Madrid, Eugene Garfield Fdn, Thomson Sci, 
Elsevier, Journal Informetr, Scopus, Ayuntamiento Madrid, Sci Metrix, Univ 
Carlos III Madrid 

Author Keywords: national science; bibliometrics indicators; nanotechnology
 
KeyWords Plus: UK SCIENTIFIC PERFORMANCE; BIBLIOMETRIC ASSESSMENT; CHINA; 
NANOTECHNOLOGY; TECHNOLOGY; INDICATORS; CENTRALITY; NATIONS; IMPACT 

Abstract: Based on the Science Citation Index-Expanded web-version, the 
USA is still by far the strongest nation in terms of scientific 
performance. Its relative decline in percentage share of publications is 
largely due to the emergence of China and other Asian nations. In terms of 
citations, the competitive advantage of the American "domestic market" is 
diminished, while the European Union (EU) is profiting more from the 
enlargement of the database over time than the US. However, the USA is 
still outperforming all other countries in terms of highly cited papers 
and citation/publication ratios, and it is more successful than the EU in 
coordinating its research efforts in strategic priority areas like 
nanotechnology. In this field, the People's Republic of China (PRC) has 
become the second largest nation in 2005 in both numbers of papers 
published and citations behind the USA. 
Addresses: Univ Amsterdam, ASCoR, Amsterdam, NL-1012 CX Netherlands. 

Publisher Name: INT SOC SCIENTOMETRICS & INFORMETRICS-ISSI 
Publisher Address: KATHOLIEKE UNIV LEUVEN, FACULTEIT E T E W, DEKENSTRAAT 
2, LEUVEN, B-3000, BELGIUM 

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