Despite Slide in World Share, U.S. Impact Still Looks Strong

Graphing and comparing the year-by-year percentage share of world scientific papers for the United States, the Asia Pacific region, and the European Union since 1993 indicates that the U.S. is continuing to lose world share, particularly to the collective Asian nations. Nevertheless, the citation impact of U.S. research remains strong when compared to world baseline figures in the main fields of science, particularly in physics, chemistry, and materials.
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