2023

最新文章

• The distribution of CO2 on Europa indicates an internal source of carbon AI翻译
  作者：Trumbo, Samantha K.; Brown, Michael E.
  作者单位：Cornell University; California Institute of Technology
  摘要：Jupiter's moon Europa has a subsurface ocean, the chemistry of which is largely unknown. Carbon dioxide (CO2) has previously been detected on the surface of Europa, but it was not possible to determine whether it originated from subsurface ocean chemistry, was delivered by impacts, or was produced on the surface by radiation processing of impact-delivered material. We mapped the distribution of CO2 on Europa using observations obtained with the James Webb Space Telescope (JWST). We found a con...
• Friendlier foxes are a dice roll away AI翻译
  作者：Dickman, Jamie
• Disequilibrating azobenzenes by visible-light sensitization under confinement AI翻译
  作者：Gemen, Julius; Church, Jonathan R.; Ruoko, Tero-Petri; Durandin, Nikita; Bialek, Michal J.; Weienfels, Maren; Feller, Moran; Kazes, Miri; Odaybat, Magdalena; Borin, Veniamin A.; Kalepu, Rishir; Diskin-Posner, Yael; Oron, Dan; Fuchter, Matthew J.; Priimagi, Arri; Schapiro, Igor; Klajn, Rafal
  作者单位：Weizmann Institute of Science; Hebrew University of Jerusalem; Tampere University; Imperial College London; Weizmann Institute of Science; Institute of Science & Technology - Austria
  摘要：Photoisomerization of azobenzenes from their stable E isomer to the metastable Z state is the basis of numerous applications of these molecules. However, this reaction typically requires ultraviolet light, which limits applicability. In this study, we introduce disequilibration by sensitization under confinement (DESC), a supramolecular approach to induce the E-to-Z isomerization by using light of a desired color, including red. DESC relies on a combination of a macrocyclic host and a photosen...
• Solid-state batteries: The critical role of mechanics AI翻译
  作者：Kalnaus, Sergiy; Dudney, Nancy J.; Westover, Andrew S.; Herbert, Erik; Hackney, Steve
  作者单位：United States Department of Energy (DOE); Oak Ridge National Laboratory; United States Department of Energy (DOE); Oak Ridge National Laboratory; United States Department of Energy (DOE); Oak Ridge National Laboratory; Michigan Technological University
  摘要：Solid-state batteries with lithium metal anodes have the potential for higher energy density, longer lifetime, wider operating temperature, and increased safety. Although the bulk of the research has focused on improving transport kinetics and electrochemical stability of the materials and interfaces, there are also critical challenges that require investigation of the mechanics of materials. In batteries with solid-solid interfaces, mechanical contacts, and the development of stresses during ...
• United States reclaims the lead in x-ray lasers AI翻译
  作者：Brainard, Jeffrey
• Her work paved the way for blockbuster obesity drugs. Now, she's fighting for recognition AI翻译
  作者：Couzin-Frankel, Jennifer
  摘要：Svetlana Mojsov helped discover the hormone GLP-1, paving the way for blockbuster obesity drugs. Now, she's fighting for recognition
• Quantum algorithm offers faster way to hack internet encryption AI翻译
  作者：Kramer, Anna
  摘要：Scheme to factor giant numbers could be more efficient than 30-year-old Shor's algorithm
• Mother Nature's playground: Sometimes in the wild it is all about fun AI翻译
  作者：Williams, Terrie M.
  作者单位：University of California System; University of California Santa Cruz
  摘要：From surfboard-stealing sea otters to sailboat-chomping killer whales, the summer of 2023 was a landmark year of wild animal antics. Why is wildlife suddenly interacting with humans and their toys in this way? Speculation and headlines have espoused theories about learned behaviors due to enticements with food, increased intrusion, and proximity of humans in wild habitats, as well as aberrant animal responses instigated by oceanic noise or disease-related neurological disorders. However, the m...
• A City on Mars: Can We Settle Space, Should We Settle Space, and Have We Really Thought This Through? AI翻译
  作者：Wong, Gifford J.
• Neuromedin U programs eosinophils to promote mucosal immunity of the small intestine AI翻译
  作者：Li, Yu; Liu, Shaorui; Zhou, Kewen; Wang, Yinsheng; Chen, Yan; Hu, Wen; Li, Shuyan; Li, Hui; Wang, Yan; Wang, Qiuying; He, Danyang; Xu, Heping
  作者单位：Zhejiang University; Westlake University; Westlake Laboratory; Westlake University; Zhejiang University; Zhejiang University; Zhejiang University
  摘要：Eosinophils are granulocytes that play an essential role in type 2 immunity and regulate multiple homeostatic processes in the small intestine (SI). However, the signals that regulate eosinophil activity in the SI at steady state remain poorly understood. Through transcriptome profiling of eosinophils from various mouse tissues, we found that a subset of SI eosinophils expressed neuromedin U (NMU) receptor 1 (NMUR1). Fate-mapping analyses showed that NMUR1 expression in SI eosinophils was prog...