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• Ductile 2-GPa steels with hierarchical substructure AI翻译
  作者：Li, Yunjie; Yuan, Guo; Li, Linlin; Kang, Jian; Yan, Fengkai; Du, Pengju; Raabe, Dierk; Wang, Guodong
  作者单位：Northeastern University - China; Chinese Academy of Sciences; Institute of Metal Research, CAS; Max Planck Society
  摘要：Mechanically strong and ductile load-carrying materials are needed in all sectors, from transportation to lightweight design to safe infrastructure. Yet, a grand challenge is to unify both features in one material. We show that a plain medium-manganese steel can be processed to have a tensile strength >2.2 gigapascals at a uniform elongation >20%. This requires a combination of multiple transversal forging, cryogenic treatment, and tempering steps. A hierarchical microstructure that consists o...
• Stereodynamical control of the H plus HD → H2+D reaction through HD reagent alignment AI翻译
  作者：Wang, Yufeng; Huang, Jiayu; Wang, Wei; Du, Tianyu; Xie, Yurun; Ma, Yuxin; Xiao, Chunlei; Zhang, Zhaojun; Zhang, Dong H.; Yang, Xueming
  作者单位：Chinese Academy of Sciences; Dalian Institute of Chemical Physics, CAS; Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS; Southern University of Science & Technology; Southern University of Science & Technology; Hefei National Laboratory
  摘要：Prealigning nonpolar reacting molecules leads to large stereodynamical effects because of their weak steering interaction en route to the reaction barrier. However, experimental limitations in preparing aligned molecules efficiently have hindered the investigation of steric effects in bimolecular reactions involving hydrogen. Here, we report a high-resolution crossed-beam study of the reaction H + HD(v = 1, j = 2) -> H2(v ', j ') + D at collision energies of 0.50, 1.20, and 2.07 electron volts...
• Why Public Space Matters AI翻译
  作者：Leitner, Helga
  作者单位：University of California System; University of California Los Angeles; University of California System; University of California Los Angeles
• Utah's Great Salt Lake may dry up within 5 years AI翻译
  作者：Brainard, Jeffrey
• UCSF contrite on prisoner studies AI翻译
  作者：[Anonymous]
• AI meeting bans AI text AI翻译
  作者：[Anonymous]
• A dragnet for respiratory bugs AI翻译
  作者：[Anonymous]
• Dome1-JAK-STAT signaling between parasite and host integrates vector immunity and development AI翻译
  作者：Rana, Vipin S.; Kitsou, Chrysoula; Dutta, Shraboni; Ronzetti, Michael H.; Zhang, Min; Bernard, Quentin; Smith, Alexis A.; Tomas-Cortazar, Julen; Yang, Xiuli; Wu, Ming-Jie; Kepple, Oleksandra; Li, Weizhong; Dwyer, Jennifer E.; Matias, Jaqueline; Baljinnyam, Bolormaa; Oliver, Jonathan D.; Rajeevan, Nallakkandi; Pedra, Joao H. F.; Narasimhan, Sukanya; Wang, Yan; Munderloh, Ulrike; Fikrig, Erol; Simeonov, Anton; Anguita, Juan; Pal, Utpal
  作者单位：University System of Maryland; University of Maryland College Park; National Institutes of Health (NIH) - USA; NIH National Center for Advancing Translational Sciences (NCATS); Yale University; National Institutes of Health (NIH) - USA; NIH National Cancer Institute (NCI); University of Minnesota System; University of Minnesota Twin Cities; Yale University; University System of Maryland; University of Maryland Baltimore; National Institutes of Health (NIH) - USA; NIH National Institute of Dental & Craniofacial Research (NIDCR); Howard Hughes Medical Institute; Basque Foundation for Science; University College Dublin
  摘要：Ancestral signaling pathways serve critical roles in metazoan development, physiology, and immunity. We report an evolutionary interspecies communication pathway involving a central Ixodes scapularis tick receptor termed Dome1, which acquired a mammalian cytokine receptor motif exhibiting high affinity for interferon-gamma (IFN-g). Host-derived IFN-g facilitates Dome1-mediated activation of the Ixodes JAK-STAT pathway. This accelerates tick blood meal acquisition and development while upregula...
• Florida vaccine warning criticized AI翻译
  作者：[Anonymous]
• Alzheimer's drug approval gets a mixed reception FDA allows use of antibody despite ongoing debates over its benefits and dangers AI翻译
  作者：Couzin-Frankel, Jennifer