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 ...
PNAS

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

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) ...
PNAS

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 ...
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 ...
PNAS

Journal Club

Journal Club posts are short news stories featuring a recent important, timely journal article selected by one of our Journal Club panelists, who are post-doctoral associates and graduate students in ...
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 ...
PNAS

Publication Charges

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 ...
PNAS

On a Theorem of Weyl Concerning Eigenvalues of Linear Transformations I

Note: 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 publication. Citation ...
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The Constancy of Desoxyribose Nucleic Acid in Plant Nuclei

Aided by a grant from the Dr. Wallace C. and Clara A. Abbott Memorial Fund of The University of Chicago. Note: The article usage is presented with a three- to four-day delay and will update daily once ...
PNAS

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 ...
PNAS

COMMUTATORS OF SINGULAR INTEGRAL OPERATORS

COMMUTATORS OF SINGULAR INTEGRAL OPERATORS*Teasing out biochemical information from ancient organic-rich sediments, notably the timing of the emergence of photosynthesis relative to the inferred ...