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 ...

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 ...

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

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 immediately following publication. Citation ...

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 ...

Minimax Theorems* 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 immediately following ...

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 ...

Early evidence that short-term elevations in ambient PM contribute to mortality came from well-documented extreme air pollution episodes in the 1930s to 1950s (2). More recently, numerous daily ...

Hunter-gatherer populations inform modern ecology In a seminal 1950 paper titled Evolution in the Tropics, biologist Theodosius Dobzhansky (8) proposed the idea that biological enemies—such as ...

Most of the research papers in random graph theory concern the Erdős–Rényi model 𝒢p, in which each edge is independently chosen with probability p for some given p > 0 (see ref. 3). In such random ...

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, ...

In the 70 years since Kleiber's monograph, a wealth of BMR and Tb data has accumulated. This report draws on the most comprehensive and representative database available, to analyze the relationship ...