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A DISCUSSION AND PROPOSALS CONCERNING FOSSIL DINOFLAGELLATES, HYSTRICHOSPHERES, AND ACRITARCHS, I

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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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Counterfeit judgments in large language models

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PNAS

On the Anaphase Movement of Chromosomes

On the Anaphase Movement of ChromosomesNote: The article usage is presented with a three- to four-day delay and will update daily once available. Due to ths delay, usage data will not appear ...
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COMPETITION, HABITAT SELECTION, AND CHARACTER DISPLACEMENT IN A PATCHY ENVIRONMENT

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COMPARISON OF POPULATION ENERGY FLOW OF A HERBIVOROUS AND A DEPOSIT-FEEDING INVERTEBRATE IN A SALT MARSH ECOSYSTEM

Surveys are a primary source of data across the sciences, from medicine to economics. I demonstrate that the assumption that logically coherent responses are from humans is now untenable. I show that ...
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In This Issue

Artistic reconstruction of shallow marine faunas from the early Palaeozoic Era of North Dakota, spanning the Early (Left) to Middle (Right) Ordovician Period. Image credit: Franz Anthony (artist). The ...
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PNAS depends, in part, on the payment of article processing charges (APCs) to finance its operations. Papers are accepted or rejected for publication and published solely on the basis of merit. For ...
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Mechanism of action of penicillins: a proposal based on their structural similarity to acyl-D-alanyl-D-alanine.

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Mutations in a subfamily of abscisic acid receptor genes promote rice growth and productivity

Climate change is challenging plant agriculture and our ability to manage food security. Crop growth and yield are controlled by several phytohormones and their overlapping signal networks. We report ...
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RAMAN SPECTRA FROM ACETONE

RAMAN SPECTRA FROM ACETONENote: The article usage is presented with a three- to four-day delay and will update daily once available. Due to ths delay, usage data will not appear immediately following ...