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

• Compact Object Astrophysics and Nuclear Reaction Data #2 of 915 universities & colleges in North America · 690 papers
• Ore Deposit Geochemistry and Tectonic Evolution in China and Central Asia #1 of 895 universities & colleges in North America · 464 papers
• Transition-Metal Catalysts for Olefin Metathesis, Ethylene Polymerization, and Nitrogen Fixation #1 of 688 universities & colleges in North America · 456 papers
• Computational Modeling of Non-Covalent Interactions and Molecular Dynamics #3 of 983 universities & colleges in North America · 440 papers
• Integrated Photonics and Nonlinear Optics for Computing, Sensing, and Quantum Networks #4 of 603 universities & colleges in North America · 368 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 California Institute of Technology publishes. Institutions come from OpenAlex affiliations, rolled up to the parent organisation. Older papers often lack affiliations, so earlier years undercount.