United States of America (USA)

1 December 2018 - 30 November 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 December 2018 - 30 November 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
28330 20081.59

Outputs by subject (FC)

Subject Count Share
Earth & Environmental Sciences 4207 2807.81
Chemistry 7119 5179.28
Physical Sciences 7860 5098.36
Life Sciences 12195 9030.01

1 December 2018 - 30 November 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 (4385.44)
    2116.45
    2268.99
  2. 1092.12
    830.49
  3. Germany (1838.06)
    1030.72
    807.34
  4. Canada (1131.75)
    688.84
    442.91
  5. France (1101.32)
    677.21
    424.11
  6. Japan (939.84)
    570.67
    369.17
  7. Australia (711.35)
    415.98
    295.36
  8. Switzerland (701.98)
    425.60
    276.39
  9. South Korea (647.13)
    396.21
    250.92
  10. Italy (610.82)
    374.51
    236.31

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 2619 935.34
2. Stanford University 1643 634.15
3. Massachusetts Institute of Technology (MIT) 1849 547.42
4. National Institutes of Health (NIH) 985 394.19
5. University of California, Berkeley (UC Berkeley) 1251 380.55
6. Yale University 895 343.67
7. University of California, Los Angeles (UCLA) 1072 340.99
8. University of Michigan (U-M) 933 340.11
9. University of California, San Diego (UC San Diego) 1043 339.68
10. Cornell University 1001 321.39

Enhanced profiles

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