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
28986 20575.61

Outputs by subject (FC)

Subject Count Share
Life Sciences 12951 9608.83
113 68.86
92 74.32
263 209.84
286 222.26
98 73.98
93 64.78
102 81.37
1 1
290 206.53
119 97.31
70 44.50
1 0.44
72 61.25
98 69.18
88 68.97
789 660.54
139 109.68
370 282.30
123 83.23
416 350.22
180 140.73
162 112.95
477 328.90
99 78.77
72 51.49
109 84.90
2186 1421.72
92 55.28
1 0.83
78 51.61
153 105.50
74 60.03
108 85.85
81 64.61
213 182.14
156 106.03
284 216.28
1922 1480.98
265 182.56
328 233.82
699 499.53
217 169.33
99 47.48
118 85.79
71 40.81
1084 890.33
0
Earth & Environmental Sciences 4341 2853.57
Chemistry 7235 5250.77
Physical Sciences 8259 5364.59

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 (4420.77)
    2106.75
    2314.03
  2. 1144.34
    831.17
  3. Germany (1914.97)
    1082.34
    832.63
  4. Canada (1205.80)
    753.10
    452.71
  5. France (1078.91)
    656.65
    422.26
  6. Japan (974.94)
    598.68
    376.26
  7. Australia (712.66)
    427.56
    285.10
  8. Switzerland (698.47)
    414.10
    284.37
  9. South Korea (697.43)
    420.77
    276.66
  10. Italy (582.81)
    354.79
    228.01

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 2535 914
2. Stanford University 1694 647.18
3. Massachusetts Institute of Technology (MIT) 1828 528.46
4. National Institutes of Health (NIH) 1085 404.29
5. University of California, Berkeley (UC Berkeley) 1297 395.84
6. University of Michigan (U-M) 1010 391.33
7. Yale University 987 350.79
8. University of California, San Diego (UC San Diego) 1003 342.66
9. Columbia University in the City of New York (CU) 1027 327.89
10. University of California, Los Angeles (UCLA) 1114 327.29

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