United States of America (USA)

1 October 2018 - 30 September 2019

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 2018 - 30 September 2019 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
28086 19943.34

Outputs by subject (FC)

Subject Count Share
Earth & Environmental Sciences 4086 2739.53
Life Sciences 12169 9028.10
Chemistry 6908 5037.85
Physical Sciences 7731 5013.66

1 October 2018 - 30 September 2019

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 (4298.71)
    2076.37
    2222.35
  2. 1061.33
    807.97
  3. Germany (1819.75)
    1007.25
    812.50
  4. Canada (1116.03)
    672.72
    443.30
  5. France (1070.59)
    651.51
    419.08
  6. Japan (917.77)
    561.80
    355.97
  7. Switzerland (699.59)
    415.73
    283.86
  8. Australia (679.22)
    398.07
    281.14
  9. South Korea (646.59)
    392.64
    253.95
  10. Italy (594.09)
    363.09
    231

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 900.93
2. Stanford University 1620 641.17
3. Massachusetts Institute of Technology (MIT) 1807 543.88
4. National Institutes of Health (NIH) 992 392.56
5. University of California, Berkeley (UC Berkeley) 1223 374.49
6. Yale University 892 355.33
7. University of California, Los Angeles (UCLA) 1038 337.01
8. University of California, San Diego (UC San Diego) 1008 328.79
9. University of Michigan (U-M) 877 314.44
10. Cornell University 968 313.25

Enhanced profiles

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