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 | |
| Earth and Planetary Science Letters | 277 | 163.86 | |
| Ecology Letters | 72 | 42.36 | |
| Environmental Science and Technology | 661 | 461.80 | |
| Geochimica et Cosmochimica Acta | 258 | 158.13 | |
| Geology | 121 | 83.33 | |
| Geophysical Research Letters | 1014 | 739.80 | |
| Journal of Geophysical Research: Atmospheres | 410 | 288.83 | |
| Journal of Geophysical Research: Solid Earth | 305 | 207.24 | |
| Nature | 66 | 33.49 | |
| Nature Climate Change | 80 | 51.44 | |
| Nature Communications | 298 | 150.81 | |
| Nature Geoscience | 80 | 47.18 | |
| Proceedings of the National Academy of Sciences of the United States of America | 274 | 179.05 | |
| Science | 63 | 37.63 | |
| Science Advances | 151 | 88.68 | |
| Water Research | 252 | 162 | |
| Physical Sciences | 8320 | 5415.52 | |
| 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)
-
China (4520.64)
-
United Kingdom (UK) (1980.62)
-
Germany (1908.05)
-
Canada (1189.24)
-
France (1080.28)
-
Japan (978.32)
-
Australia (728.64)
-
South Korea (688.06)
-
Switzerland (676.70)
-
Italy (587.91)
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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