Alloys of copper and tin enabled the technological advances of the Bronze Age. Compared with copper, economically viable tin deposits are rare and geographically concentrated, making the origin of tin ...

References to nonexistent studies are well documented in biomedical research, but evidence outside biomedicine is limited. We analyzed a stratified random sample of 500,000 peer-reviewed journal ...

While many mechanisms may contribute to polarization, the mechanism proposed in ref. 1 is not among them, at least based on the evidence presented. For a model to provide a mechanistic explanation of ...

Streptomyces use small molecules to dictate morphological development and secondary metabolism. Most of these signaling compounds are inducers derived from γ-butyrolactone (GBL)-synthesizing enzymes.

The editors are retracting this article due to an undisclosed relevant competing interest at the time of submission. NAS Member Contributing author, Mariano Barbacid, and two coauthors, Vasiliki Liaki ...

Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) and long COVID affect large numbers of people, and constitute a substantial burden to the U.S. and global economies. The article by Eckey et ...

Institutional legitimacy is essential for democracies, yet public trust and confidence in the United States Congress are at an all-time low. A significant predictor of attitudes toward Congress is ...

Cnidaria, the sister group of Bilateria, include corals, jellyfish, and sea anemones. They possess neurons, which are organized in a diffuse nerve net. It is generally agreed that cnidarian and ...

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 ...