Proceedings of the National Academy of Sciences: Proceedings of the National Academy of Sciences: Table of Contents

1. In This Issue
   Proceedings of the National Academy of Sciences, Volume 122, Issue 18, May 2025. <br/>
2. Testing theories of political persuasion using AI
   Proceedings of the National Academy of Sciences, Volume 122, Issue 18, May 2025. <br/>SignificanceWe leverage recent advances in AI in two original research studies regarding persuasion about controversial political issues in the United States. These studies make both methodological and substantive contributions to the study of persuasion. ...
3. Massive mutagenesis reveals an incomplete amyloid motif in Bri2 that turns amyloidogenic upon C-terminal extension
   Proceedings of the National Academy of Sciences, Volume 122, Issue 18, May 2025. <br/>SignificanceStop-loss mutations that do not trigger the non-stop-mediated-decay machinery can result in proteins with aberrant extended sequences at their C-terminus. At least 20 of these mutations are known to cause human disease. Stop-loss inITM2B/BRI2...
4. Scattering diagrams, tight gradings, and generalized positivity
   Proceedings of the National Academy of Sciences, Volume 122, Issue 18, May 2025. <br/>SignificanceCluster algebras and scattering diagrams appear in diverse areas of mathematics and physics including total positivity, Seiberg duality, statistical physics models, noncommutative geometry, tropical geometry, Kadomtsev–Petviashvili solitons, ...
5. Differentiated planetesimals record differing sources of sulfur in inner and outer solar system materials
   Proceedings of the National Academy of Sciences, Volume 122, Issue 18, May 2025. <br/>SignificanceThe sources of Earth’s volatile elements remain unclear. For many elements, the distinct isotope anomalies of inner and outer solar system materials constrain the provenance of the terrestrial inventory. Yet, for the major life-essential ...