Since 2002, PNAS has offered free and immediate access to journal content for researchers in an initial group of 81 countries, a number that has grown to over 120 lower-income countries. This access ...

PNAS: Welcome to Science Sessions, the podcast of the Proceedings of the National Academy of Sciences, where we connect you with Academy members, researchers, and policymakers. Join us as we explore ...

A kidney cancer cell nucleus is studded with aberrant nuclear speckles (orange). Normal healthy cells tend to have the speckles clustered toward the middle. Image credit: Kate Alexander (Cold Spring ...

High-resolution measurement of Roman-era lead pollution in Arctic ice cores at the Desert Research Institute. Image credit: Jessi LeMay (Desert Research Institute, Reno, Nevada). Atmospheric lead ...

Maria Iandolo New, who passed away on July 26, 2024, at the age of 95, was the child of Italian immigrants who came to America as professional musicians. She grew up in the Little Italy section of ...

Long before the election cycles of 2024, 2020, or even 2016, anyone who followed US political news could sense it—a toxic, ever-escalating tide of alienation, suspicion, and loathing for the opposing ...

Since the turn of the 21st century, rapid advancements in phylogenomics have significantly deepened our understanding of the tree of life, particularly for ancient divergence. A recent letter to the ...

Cable bacteria (Desulfaobulbaceae) are known for their ability to conduct electricity in the form of negatively charged electrons over many millimeters. To determine whether cable bacteria can also ...

In PNAS, Mughal et al. describe a mechanism—termed electro-Ca 2+ coupling—that links electrical and Ca 2+ signaling in ECs and has implications for the control of cerebral blood flow. This work was ...

Edited by Anne C. Hart, Brown University, Providence, RI; received August 29, 2024; accepted December 19, 2024 by Editorial Board Member Yishi Jin ...

The authors note that the G2K10 panel in Fig. 5D appeared incorrectly. “The error occurred during assembly of the figure. These errors do not affect the results or ...