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 ...

Hannibal crossed the Alps with a large army containing 37 war elephants in 218 BC. Details of his route have scholars ...

The President’s Council of Advisors on Science and Technology has called for a 33% increase in the number of science, technology, engineering, and mathematics (STEM) bachelor’s degrees completed per ...

Edited by Michael S. Gazzaniga, University of California, Santa Barbara, CA, and approved October 22, 2013 (received for review August 6, 2013) In science, it is usually assumed that, the better one ...

Hamiltonian Systems and Transformation in Hilbert Space While generative AI has been shown to enhance productivity, its influence on learning new skills remains unclear. Our research examines the ...

Special Features in PNAS are curated collections that explore important scientific topics and often take an interdisciplinary approach to emerging or underrepresented areas of research. All articles ...

A technique is described for forming molecular hybrids between RNA in solution and the DNA of intact cytological preparations. Cells in a conventional tissue squash are immobilized under a thin layer ...

Cooperative traits maintain bacterial niche breadth Join the global community of subscribers to PNAS, the flagship journal of the US National Academy of Sciences, a mission-driven nonprofit society.

Late Pleistocene North American foragers assigned to the Clovis culture have long been assumed to have hunted megafauna with the atlatl, which would have provided several advantages. Yet, we ...

Based on Cowles Commission Discussion Paper, Economics, No. 2067 (January, 1953). This article has been prepared under contract Nonr-358(01), NR 047-006 between the Office of Naval Research and the ...

The President’s Council of Advisors on Science and Technology has called for a 33% increase in the number of science, technology, engineering, and mathematics (STEM) bachelor’s degrees completed per ...

ON THE CLASSIFICATION OF REINFORCEMENT SCHEDULES* While generative AI has been shown to enhance productivity, its influence on learning new skills remains unclear. Our research examines the impact of ...