Research trend share of papers by universities & colleges in North America, per year

Each point is this institution's share of the papers credited to universities & colleges in North America that year, with credit split across co-authoring institutions. A share, not a count, because our collection grows unevenly by year. Hover a point for the figures. The hollow point is the year in progress.

Where it works most top research communities, by papers

• Low-Temperature Plasma Generation, Diagnostics, and Surface Treatment #7 of 783 universities & colleges in North America · 283 papers
• Transition-Metal-Catalyzed Cross-Coupling and Asymmetric Organic Synthesis #12 of 994 universities & colleges in North America · 273 papers
• Dark Matter Detection, Neutrino Physics, and Compact Object Astrophysics #5 of 887 universities & colleges in North America · 251 papers
• Silicon and III-V Semiconductor Devices for Photovoltaics and Optoelectronics #14 of 694 universities & colleges in North America · 175 papers
• Precision Atomic Spectroscopy, Quantum Gases, and Frequency Standards #8 of 659 universities & colleges in North America · 174 papers

Check communities to show the trend above for them only. Positions are by fractional papers across all years. A community page ranks its institutions by citation-weighted credit, so its order can differ.

Covers the materials and chemistry research Elements Live tracks, not everything Princeton University publishes. Institutions come from OpenAlex affiliations, rolled up to the parent organisation. Older papers often lack affiliations, so earlier years undercount.