Science

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• Local fields reveal atomic-scale nonadiabatic carrier-phonon dynamics AI翻译
  作者：Neb, Sergej; Shin, Dong-bin; Burri, Florence; Hollm, Marko; de Vos, Erik W.; Kuznetsov, Denis A.; Muller, Christoph R.; Fedorov, Alexey; Sato, Shunsuke A.; Rubio, Angel; Gallmann, Lukas; Keller, Ursula
  作者单位：Swiss Federal Institutes of Technology Domain; ETH Zurich; Gwangju Institute of Science & Technology (GIST); Swiss Federal Institutes of Technology Domain; ETH Zurich; Max Planck Society; Tohoku University; Simons Foundation; Flatiron Institute
  摘要：Understanding nonadiabatic carrier-lattice interactions at the atomic scale remains a fundamental challenge, yet these processes govern energy transfer in materials and ultimately set limits in microelectronics. We combined attosecond core-level transient absorption spectroscopy with many-body theory to uncover how nonadiabatic electron-phonon coupling drives ultrafast relaxations in a titanium-carbide MXene. Phonon-driven changes in carrier localization modulated local field effects (LFEs), y...
• A cellular basis for heightened gut sensitivity in females AI翻译
  作者：Venkataraman, Archana; Figueroa, Eric E.; Castro, Joel; Navarro, Fernanda Castro; Soota, Deepanshu; Brierley, Stuart M.; Julius, David; Ingraham, Holly A.
  作者单位：University of California System; University of California San Francisco; University of California System; University of California San Francisco; Adelaide University; University of Adelaide
  摘要：Visceral pain disorders, such as irritable bowel syndrome, exhibit a marked female prevalence. Enhanced signaling between enterochromaffin (EC) cells in the gut epithelium and mucosal sensory nerve fibers likely contributes to this sex bias. We identified an estrogen-responsive paracrine pathway in which two enteroendocrine cell types, peptide YY (PYY)-expressing L cells and serotonergic EC cells, communicate to increase gut sensitivity in females. We demonstrate that estrogen signaling up-reg...
• A quantum centenary AI翻译
  作者：Jin, Sumin; Stajic, Jelena; Hand, Eric
• Experimental treatments target the brain's 'plumbing' AI翻译
  作者：Smith, Jennie Erin
• Abandoned antiviral shows promise against dengue AI翻译
  作者：Vogel, Gretchen
• A bacterial toxin disarms gut defenses against inflammation AI翻译
  作者：Modilevsky, Sonia; Bel, Shai
  作者单位：Bar Ilan University
• Europe faults Big Tech platforms for lack of research access AI翻译
  作者：Kupferschmidt, Kai
• Global methane action pays for itself at least six times over AI翻译
  作者：Stoerk, Thomas; Rising, James; Shindell, Drew; Dietz, Simon
  作者单位：European Central Bank; National Bank of Belgium; University of London; London School Economics & Political Science; University of Delaware; Duke University
  摘要：We provide a comprehensive assessment of the economic benefits and costs of global methane emissions abatement, anchored on the Global Methane Pledge. We use an integrated assessment model to estimate avoided climate damages at the global and country levels, including quantification of tipping points and risk. We further estimate air-quality cobenefits and methane abatement costs. We find that global methane action would be highly beneficial, yielding a benefit-cost ratio of at least six. It w...
• FAIR DOSES AI翻译
  作者：Caplan, Arthur
• A tripartite alliance for dietary fat absorption AI翻译
  作者：Burkhardt, Ralph; Ecker, Josef
  作者单位：University of Regensburg