6772期

最新文章

• 2025 Mandalay Earthquake AI翻译
  作者：Hessler, Angela; Jin, Sumin
• Argentine telescope caught in US-China crossfire AI翻译
  作者：Orfila, Maria De Los Angeles
• Structural dissection of αβ-tubulin heterodimer assembly and disassembly by human tubulin-specific chaperones AI翻译
  作者：Seong, Yeonjae; Kim, Hyunmin; Byun, Kyumi; Park, Yeon-Woo; Roh, Soung-Hun
  作者单位：Seoul National University (SNU); Seoul National University (SNU); European Molecular Biology Laboratory (EMBL)
  摘要：Microtubule assembly requires a set of chaperones known as tubulin-binding cofactors (TBCs). We used cryo-electron microscopy to visualize how human TBCD, TBCE, TBCC, and guanosine triphosphatase (GTPase) Arl2 mediate alpha beta-tubulin assembly and disassembly. We captured multiple conformational states, revealing how TBCs orchestrate tubulin heterodimer biogenesis. TBCD stabilizes monomeric beta-tubulin and scaffolds the other cofactors. Guanosine triphosphate (GTP) binding to Arl2 induces c...
• Conversion of syngas into olefins with high hydrogen atom economy AI翻译
  作者：Gao, Chang; Song, Wenlong; Wang, Huiqiu; Chen, Xiao; Cui, Chaojie; Hao, Wangshu; Yan, Ning; Yang, Yuan; Yang, Shenglong; Lv, Hao; Ma, Mingyu; Lian, Xinli; Zhang, Ruixia; Qian, Weizhong
  作者单位：Tsinghua University
  摘要：In synthesizing olefins from syngas, low hydrogen atom economy (HAE), the fraction of reactant hydrogen in the hydrocarbon product, arises from hydrogen loss in water by-product. We report a sodium-modified FeCx@Fe3O4 core-shell catalyst coupling water-gas shift (WGS) with syngas-to-olefins (STO) to convert water into hydrogen in situ. HAE reaches about 66 to 83%, exceeding that of methanol-to-olefins (MTO, 50% upper limit). The approximately 95% carbon monoxide conversion and >75% olefin sele...
• Two diverging paths for clean fuel Fischer-Tropsch synthesis can produce liquid fuels from nonpetroleum sources AI翻译
  作者：Saeys, Mark
  作者单位：Ghent University
• Bimaterial effect and favorable energy ratio enabled supershear rupture in the 2025 Mandalay earthquake AI翻译
  作者：Xu, Liuwei; Meng, Lingsen; Zhang, Yunjun; Yang, Yanchen; Wang, Yidi; Hu, Changyang; Weng, Huihui; Xu, Wenbin; Su, Elizabeth; Ji, Chen
  作者单位：University of California System; University of California Los Angeles; Chinese Academy of Sciences; Aerospace Information Research Institute, CAS; Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS; Chinese Academy of Sciences; Aerospace Information Research Institute, CAS; Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS; Nanjing University; Central South University; University of California System; University of California Santa Barbara
  摘要：Joint seismic and geodetic analyses revealed that the 2025 moment magnitude (M-w) 7.8 Mandalay, Myanmar, earthquake ruptured similar to 510 km of the Sagaing fault, with a sustained supershear rupture extending similar to 450 km on the southern branch. Far-field Mach waves and near-field ground motion confirmed the supershear nature. This exceptionally long supershear rupture caused building collapse and soil liquefaction, as observed in satellite imagery, offering insights into the damage pot...
• Mandalay earthquake pushes rupture limits Fast rupture of Earth's crust breaks a long fault, expanding the damaged area AI翻译
  作者：Bradley, Kyle E.; Hubbard, Judith A.
  作者单位：Cornell University
• How common cuckoos adapt to multiple hosts AI翻译
  作者：Sorenson, Michael D.; Spottiswoode, Claire N.
  作者单位：Boston University; University of Cape Town; University of Cambridge
• Restore strict protection for wolves in Europe AI翻译
  作者：Randi, Ettore; Jansman, Hugh; Kusak, Josip; Pacifici, Michela; Piovesan, Gianluca; Saarma, Urmas; Schmidt, Krzysztof; Werhahn, Geraldine
  作者单位：Aalborg University; Wageningen University & Research; University of Zagreb; Koc University; Utah System of Higher Education; University of Utah; Sapienza University Rome; Tuscia University; University of Tartu; Tartu University Institute of Ecology & Earth Sciences; Polish Academy of Sciences; Mammal Research Institute of the Polish Academy of Sciences; University of Oxford
• Regional encoding of enteric nervous system responses to microbiota and type 2 inflammation AI翻译
  作者：Tan, Peng; Jaiswal, Alok; Murphy, Shane P.; Brown, Eric M.; Wheeler, Hailey; Su, Chien-Wen; Finan, Emily P.; Jasso, Guadalupe J.; Shi, Hai Ning; Graham, Daniel B.; Delorey, Toni M.; Deguine, Jacques; Xavier, Ramnik J.
  作者单位：Harvard University; Massachusetts Institute of Technology (MIT); Broad Institute; Harvard University; Massachusetts Institute of Technology (MIT); Broad Institute; Hainan Medical University; Harvard University; Harvard University Medical Affiliates; Massachusetts General Hospital; Harvard University; Harvard Medical School; Harvard University; Harvard University Medical Affiliates; Massachusetts General Hospital; Harvard University; Harvard University Medical Affiliates; Massachusetts General Hospital; Harvard University; Harvard Medical School; Harvard University Medical Affiliates; Massachusetts General Hospital; Brigham & Women's Hospital; Harvard University; Harvard University Medical Affiliates; Massachusetts General Hospital
  摘要：Enteric neurons are essential regulators of intestinal physiology, yet their responses to varying microbial and immune environments along the intestinal tract and or during challenges remain poorly understood. In this study, we regionally profiled enteric neurons across gnotobiotic, allergic, and parasite-infected mice. Timing and complexity of microbial perturbations and type 2 inflammation result in motor neuron state shifts and alter multiple functionally distinct sensory neurons, including...