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 ...
We are updating our policy regarding the availability of data, with an emphasis on visual data, effective January 1, 2024. Image credit: François Parcy. PNAS strives to promote and endorse best ...
The world is in a battle for truth. A cadre of researchers is eagerly seeking ways to stymie the spread of mis- and disinformation. The stakes are high. Social media have become an accelerant for the ...
The enzymatic conversion of heme to bilirubin by microsomal heme oxygenase. R Tenhunen, H S Marver, and R Schmid Authors Info & Affiliations ...
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 ...
FOSSILS, EARLY LIFE, AND ATMOSPHERIC HISTORY ...
Effect of Inhomogeneity on Cosmological Models ...
Various self-service options are available to institutional administrators at subscribing institutions. Select a topic below for step-by-step instructions and video guides. New administrators must ...
Because ecosystem responses to such variables may depend on the type of ecosystem, its species composition and soils, abiotic variables including climate, and the magnitude of the change in drivers, ...
Edited by John M. Wallace, University of Washington, Seattle, WA, and approved December 12, 2012 (received for review August 22, 2012) Summer monsoons and tropical storms (TSs) affect billions of ...
Open in Viewer Illustration of the HC and its relationship to the midlatitude baroclinic eddies: (A) climatology in current climate; (B) the weaker and broader HC projected by many CMIP3 and CMIP5 ...
Open in Viewer (A) Schematic of a photocell consisting of quantum dots sandwiched between p and n doped semiconductors. Open circuit voltage and solar photon energy ℏνh are related by the Carnot ...
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