Table 5-21
S&E research portfolios of selected regions/countries, by field: 2011
(Percent)
 
Field World United States EU China Japan
 
All articles (n) 827,705 212,394 254,482 89,894 47,106
Engineering 10.7 7.1 9.0 16.9 11.0
Agricultural sciences 2.3 1.6 2.4 2.1 2.4
Astronomy 1.3 1.4 1.6 0.6 1.0
Biological sciences 19.5 23.3 19.3 14.8 20.7
Chemistry 13.9 8.2 12.8 24.9 17.3
Computer sciences 1.1 1.1 1.1 1.7 0.3
Geosciences 5.6 5.5 5.7 4.8 4.2
Mathematics 2.2 1.9 2.6 2.6 1.5
Medical sciences 22.1 28.3 24.0 10.6 21.3
Other life sciences 1.2 2.2 1.0 0.2 0.2
Physics 13.1 8.6 12.6 19.4 18.2
Psychology 2.8 4.8 2.9 0.4 0.8
Social sciences 4.1 6.0 4.9 0.9 1.0
 

EU = European Union.

NOTES: Article counts are from the set of journals covered by the Science Citation Index (SCI) and Social Sciences Citation Index (SSCI). Articles are classified by their year of publication and are assigned to the country on the basis of the institutional address(es) listed in the article. Articles are credited on a fractional-count basis (i.e., for articles with collaborating institutions from multiple countries, each country receives fractional credit on the basis of the proportion of its participating institutions). See appendix table 5-24 for countries/economies included in the EU. Percentages may not add to 100% because of rounding.

SOURCES: National Science Foundation, National Center for Science and Engineering Statistics, and The Patent Board,™ special tabulations (2013) from Thomson Reuters, SCI and SSCI, http://thomsonreuters.com/products_services/science/. See appendix tables 5-27—5-39.

Science and Engineering Indicators 2014