We investigate the emissions of two potent greenhouse gases, perfluorocarbons tetrafluoromethane (CF 4, PFC-14) and hexafluoroethane (C 2 F 6, PFC-116), in China. Based on atmospheric observations ...
Despite increased attempts to express equality in speech, biases often leak out through subtle linguistic cues. For example, the subject–complement statement (SCS, “Girls are as good as boys at math”) ...
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 ...
A.H.M. is supported by the NIH (R35 GM138284 and R01 DK139214).
The COVID-19 pandemic provided a natural experiment to test the impacts of human activity on urban-dwelling wildlife. Urban dark-eyed juncos differ in bill shape and size in Los Angeles in comparison ...
Of the more than 380,000 plant species worldwide, only 0.1 to 1% are halophytes. While most staple crops are salt-sensitive glycophytes, barley exhibits notable salt tolerance despite its HvHKT1;5 ...
Assessing the ergodicity of graphene liquid cell electron microscope measurements, we report that loop states of circular DNA interconvert reversibly and that loop numbers follow the Boltzmann ...
Optical linear and nonlinear spectroscopy is the preferred method for studying the interaction between a solute molecule and its surrounding solvent in liquids because photons are minimally intrusive ...
Plants have evolved sophisticated mechanisms to adapt to environmental changes, with root gravitropism playing a pivotal role in nutrient and water acquisition. Our study reveals that SnRK2 kinases ...
GdPtBi and NdPtBi belong to the Heusler family of compounds and are conventional antiferromagnets below 9 and 2.1 K, respectively. We present evidence for magnetic-field–induced Weyl physics in these ...
In the spring of 2022, the Calf Canyon/Hermit’s Creek fire burned over 300,000 acres in New Mexico (1), including terrain near the Rio Gallinas School for Ecology and the Arts in Las Vegas, New Mexico ...
Every year, PNAS highlights articles that have made a large impact on public understanding of science and scientific inquiry. Read the 10 selected articles from 2023. PNAS research receives mentions ...
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