United States of America (USA)

Research

Date range: 1 April 2021 - 31 March 2022

Subject/journal group: All

The table to the right includes counts of all research outputs for United States of America (USA) published between 1 April 2021 - 31 March 2022 which are tracked by the Nature Index.

Hover over the donut graph to view the Share 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.

Article Count and Share for United States of America (USA)
Count Share
26638 18662.55

Outputs by subject (Share)

Outputs by subject
Subject Count Share
4096 2612.76
6295 4567.92
11819 8680.54
7542 4822.46

Share output for the past 5 years

Share per year
2016 2017 2018 2019 2020
20010.30 20000.00 20423.14 20183.51 20631.93

Compare United States of America (USA) with other countries/territories

Collaboration

Date range: 1 April 2021 - 31 March 2022

Collaboration by percentage of Share

Hover over the graph to view collaboration by percentage of Share.

Collaboration by percentage of Share
Country Share (%)
China 29.18
Germany 14.24
UK 13.77
Canada 8.64
France 7.67
Japan 6.93
Switzerland 5.3
Australia 4.89
South Korea 4.87
Italy 4.5

Top 10 collaborators with United States of America (USA) by Share

  1. United States of America (USA) and China (3899.90)
    United States of America (USA)1774.13
    China2125.76
  2. United States of America (USA) and Germany (1903.40)
    United States of America (USA)1083.05
    Germany820.35
  3. United States of America (USA) and United Kingdom (UK) (1840.32)
    United States of America (USA)1073.46
    United Kingdom (UK)766.86
  4. United States of America (USA) and Canada (1154.87)
    United States of America (USA)717.88
    Canada437.00
  5. United States of America (USA) and France (1024.85)
    United States of America (USA)621.12
    France403.74
  6. United States of America (USA) and Japan (925.49)
    United States of America (USA)573.15
    Japan352.34
  7. United States of America (USA) and Switzerland (708.67)
    United States of America (USA)421.34
    Switzerland287.33
  8. United States of America (USA) and Australia (653.14)
    United States of America (USA)391.33
    Australia261.81
  9. United States of America (USA) and South Korea (650.25)
    United States of America (USA)386.39
    South Korea263.86
  10. United States of America (USA) and Italy (601.90)
    United States of America (USA)370.56
    Italy231.34

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) by Share

Institution Count Share
1. Harvard University 2544 869.27
2. Stanford University 1529 600.22
3. Massachusetts Institute of Technology (MIT) 1848 521.66
4. University of California, Berkeley (UC Berkeley) 1240 364.37
5. National Institutes of Health (NIH) 934 362.74
6. University of California, San Diego (UC San Diego) 980 334.36
7. University of California, Los Angeles (UCLA) 1037 327.83
8. Yale University 936 324.56
9. University of Michigan (U-M) 899 324.36
10. Columbia University in the City of New York (CU) 970 308.46