Proceedings of the National Academy of Sciences (PNAS)

Table Of Contents Page, PNAS Volume 122, Number 49

NASA’s OSIRIS-REx mission characterized the asteroid Bennu and delivered pristine samples of its regolith to Earth. Coordinated analyses of this primitive, carbonaceous material are elucidating the ...
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Wet phases in the Sahara/Sahel region and human migration patterns in North Africa

The carbon isotopic composition of individual plant leaf waxes (a proxy for C 3 vs. C 4 vegetation) in a marine sediment core collected from beneath the plume of Sahara-derived dust in northwest ...
PNAS

Evidence for the role of organics in aerosol particle formation under atmospheric conditions

Edited by Barbara J. Finlayson-Pitts, University of California, Irvine, CA, and approved December 15, 2009 (received for review October 2, 2009) The fact that nucleation takes place at sizes below the ...
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Biodiversity impacts ecosystem productivity as much as resources, disturbance, or herbivory

Because ecosystem responses to such variables may depend on the type of ecosystem, its species composition and soils, abiotic variables including climate, and the magnitude of the change in drivers, ...
PNAS

Counterfeit judgments in large language models

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Rational construction of a library of M

Edited by Alexis T. Bell, University of California, Berkeley, CA, and approved August 14, 2019 (received for review July 26, 2019) ...
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2026 PNAS Subscription Rates

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COMPETITION, HABITAT SELECTION, AND CHARACTER DISPLACEMENT IN A PATCHY ENVIRONMENT

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Journal Club

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On the Anaphase Movement of Chromosomes

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ACETYLATION AND METHYLATION OF HISTONES AND THEIR POSSIBLE ROLE IN THE REGULATION OF RNA SYNTHESIS

Teasing out biochemical information from ancient organic-rich sediments, notably the timing of the emergence of photosynthesis relative to the inferred oxygenation of Earth’s atmosphere, remains a ...