United States of America (USA)

1 June 2019 - 31 May 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 June 2019 - 31 May 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
28722 20436.69

Outputs by subject (FC)

Subject Count Share
Life Sciences 12379 9205.34
Earth & Environmental Sciences 4303 2867.61
Physical Sciences 8133 5319
Chemistry 7628 5529.83

1 June 2019 - 31 May 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 (4524.81)
    2192.53
    2332.28
  2. 1072.76
    825.91
  3. Germany (1840.79)
    1054.82
    785.96
  4. Canada (1155.45)
    707.58
    447.88
  5. France (1089.93)
    665.14
    424.79
  6. Japan (957.70)
    574.59
    383.11
  7. South Korea (722.33)
    436.82
    285.51
  8. Australia (706.62)
    412.33
    294.29
  9. Switzerland (677.53)
    407.99
    269.54
  10. Italy (577.20)
    355.63
    221.57

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 2539 911.92
2. Stanford University 1694 670.47
3. Massachusetts Institute of Technology (MIT) 1807 526.49
4. University of California, Berkeley (UC Berkeley) 1293 409.76
5. National Institutes of Health (NIH) 1034 399.31
6. University of Michigan (U-M) 955 371.04
7. University of California, San Diego (UC San Diego) 1006 350.40
8. Yale University 928 342.71
9. Northwestern University (NU) 775 335.38
10. University of California, Los Angeles (UCLA) 1079 329.35

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