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 ...
Open in Viewer RoBMA PSMA model-averaged posterior mean effect size estimates with 95% credible intervals and Bayes factors for the absence of the effect for the combined sample or split by either the ...
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 ...
This is an addendum toComplex viscosity of helical and doubly helical polymeric liquids from general rigid bead-rod theory ...
Dive into PNAS Front Matter for editorials, interviews, science news, and commentary that offer expert perspective on today’s most important research findings.
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 ...
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 ...
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 ...
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 ...
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 ...
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 ...
Evidence from sero-epidemiological studies and from cell culture studies supports the hypothesis that the cells of many, and perhaps all, vertebrates contain information for producing C-type RNA ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results