United States of America (USA)

1 December 2019 - 30 November 2020

Subject/journal group: All

The table to the right includes counts of all research outputs for United States of America (USA) published between 1 December 2019 - 30 November 2020 which are tracked by the Nature Index.

Hover over the donut graph to view the FC output for each subject. Below, the same research outputs are grouped by subject. Click on the subject to drill-down into a list of articles organized by journal, and then by title.

Note: Articles may be assigned to more than one subject area.

Count Share
29027 20574.36

Outputs by subject (FC)

Subject Count Share
Life Sciences 12935 9594.53
Earth & Environmental Sciences 4340 2853.50
Chemistry 7233 5248.87
Physical Sciences 8320 5380.01

1 December 2019 - 30 November 2020

View the connected world of international research collaboration. Visualize collaborations by subject or region.

Collaborations between countries

Percentage of collaboration by Share

Hover over the graph to view the percentage of collaboration.

Top 10 collaborators by Share

  • United States of America (USA)
  1. China (4422.46)
    2108.68
    2313.78
  2. 1145.61
    832.49
  3. Germany (1926.28)
    1087.53
    838.74
  4. Canada (1209.39)
    755.58
    453.81
  5. France (1095.28)
    663.82
    431.46
  6. Japan (978.01)
    601.24
    376.77
  7. Australia (713.12)
    428.09
    285.03
  8. Switzerland (700.36)
    415.30
    285.06
  9. South Korea (699.06)
    421.88
    277.18
  10. Italy (591.47)
    357.90
    233.57

Collaboration is determined by the combined fractional count (Share) of United States of America (USA) and the collaborating country.

Top 10 institutions from United States of America (USA)

Institution Count Share
1. Harvard University 2541 912.98
2. Stanford University 1699 647.25
3. Massachusetts Institute of Technology (MIT) 1837 529.41
4. National Institutes of Health (NIH) 1085 402.61
5. University of California, Berkeley (UC Berkeley) 1306 396.18
6. University of Michigan (U-M) 1018 391.20
7. Yale University 991 351.49
8. University of California, San Diego (UC San Diego) 1007 342.46
9. Columbia University in the City of New York (CU) 1029 327.56
10. University of California, Los Angeles (UCLA) 1118 327.06

Enhanced profiles

Get your institution here

Return to country/territory outputs