United States of America (USA)

1 October 2019 - 30 September 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 October 2019 - 30 September 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
29281 20809

Outputs by subject (FC)

Subject Count Share
Life Sciences 12790 9487.91
Earth & Environmental Sciences 4382 2895.62
Physical Sciences 8320 5415.52
530 368.27
417 241.37
321 187.49
580 445.24
1 1
149 49.85
1 1
1 1
1 0.73
819 496.53
59 23.61
523 365.32
236 143.19
984 605.56
113 69.62
1 0.90
58 38.46
42 28.09
125 83.38
68 43.97
333 233.76
73 41.65
1128 733.43
140 96.04
606 473.68
156 101.69
386 253.22
468 286.46
1 1
Chemistry 7730 5613.35

1 October 2019 - 30 September 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 (4520.64)
    2154.54
    2366.10
  2. 1133.65
    846.98
  3. Germany (1908.05)
    1085.05
    823
  4. Canada (1189.24)
    740.82
    448.42
  5. France (1080.28)
    659.23
    421.05
  6. Japan (978.32)
    590.66
    387.66
  7. Australia (728.64)
    435.92
    292.72
  8. South Korea (688.06)
    416.82
    271.23
  9. Switzerland (676.70)
    404.25
    272.44
  10. Italy (587.91)
    355.08
    232.83

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 2540 933.88
2. Stanford University 1693 655.79
3. Massachusetts Institute of Technology (MIT) 1835 535.23
4. National Institutes of Health (NIH) 1049 400.42
5. University of California, Berkeley (UC Berkeley) 1281 397.71
6. University of Michigan (U-M) 991 391.05
7. University of California, San Diego (UC San Diego) 1017 357.72
8. Yale University 980 357.19
9. Northwestern University (NU) 783 348.79
10. University of California, Los Angeles (UCLA) 1112 333.41

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