Machine learning holds great promise for classifying and identifying fossils, and has recently been marshaled to identify trackmakers of dinosaur ...

The Middle Pleistocene (MP; ca. 774 to 129 ka) marks a critical period of human evolution, characterized by increasing ...

O. Richter et al., DYNAP-SE2: A scalable multi-core dynamic neuromorphic asynchronous spiking neural network processor. Neuromorphic Comput. Eng.4, 014003 (2024). Crossref Google Scholar xrefBack.goTo ...

We examine i) whether the public views AI as labor-replacing rather than labor-creating, and ii) how these perceptions affect two core democratic outcomes: democratic legitimacy (e.g., satisfaction ...

Ferroptosis, a form of cell death driven by excessive lipid peroxidation, is induced by inhibiting GPX4, a key regulator of ferroptosis. Wang et al. reported that MALT1 protease activity regulates ...

Every year, PNAS highlights articles that have made a large impact on public understanding of science and scientific inquiry. Read the 12 selected articles from 2025. PNAS research receives mentions ...

This work has been supported in part by a grant from the National Institutes of Health of the United States Public Health Service. A preliminary report was presented at the forty-fifth annual meeting ...

Dive into PNAS Front Matter for editorials, interviews, science news, and commentary that offer expert perspective on today’s most important research findings.

Catabolic repression of bacterial sporulation. 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 ...

Evaluation of the electrostatic properties of biomolecules has become a standard practice in molecular biophysics. Foremost among the models used to elucidate the electrostatic potential is the ...

Mangroves are disappearing rapidly worldwide despite their well documented biodiversity and the ecosystem services they provide. Failure to link ecological processes and their societal benefits has ...

The discovery of high-temperature superconductivity in iron pnictides raised the possibility of an unconventional superconducting mechanism in multiband materials. The observation of Fermi-surface ...