-
作者：Noronha, Patricia Maia
-
作者：An, Zibing; Li, Ang; Mao, Shengcheng; Yang, Tao; Zhu, Lingyu; Wang, Rui; Wu, Zhaoxuan; Zhang, Bin; Shao, Ruiwen; Jiang, Cheng; Cao, Boxuan; Shi, Caijuan; Ren, Yang; Liu, Cheng; Long, Haibo; Zhang, Jianfei; Li, Wei; He, Feng; Sun, Ligang; Zhao, Junbo; Yang, Luyan; Zhou, Xiaoyuan; Wei, Xiao; Chen, Yunmin; Lu, Zhouguang; Ren, Fuzeng; Liu, Chain-Tsuan; Zhang, Ze; Han, Xiaodong
作者单位：Beijing University of Technology; City University of Hong Kong; Chongqing University; Beijing Institute of Technology; Chinese Academy of Sciences; Institute of High Energy Physics, CAS; City University of Hong Kong; Zhejiang University; Northwestern Polytechnical University; Harbin Institute of Technology; Zhejiang University; Southern University of Science & Technology
摘要：Body-centred cubic refractory multi-principal element alloys (MPEAs), with several refractory metal elements as constituents and featuring a yield strength greater than one gigapascal, are promising materials to meet the demands of aggressive structural applications1-6. Their low-to-no tensile ductility at room temperature, however, limits their processability and scaled-up application7-10. Here we present a HfNbTiVAl10 alloy that shows remarkable tensile ductility (roughly 20%) and ultrahigh ...
-
作者：Shirlow, Ryan
-
作者：Wayment-Steele, Hannah K.; Ojoawo, Adedolapo; Otten, Renee; Apitz, Julia M.; Pitsawong, Warintra; Homberger, Marc; Ovchinnikov, Sergey; Colwell, Lucy; Kern, Dorothee
作者单位：Brandeis University; Howard Hughes Medical Institute; Harvard University; Alphabet Inc.; Google Incorporated; University of Cambridge
摘要：AlphaFold2 (ref. 1) has revolutionized structural biology by accurately predicting single structures of proteins. However, a protein's biological function often depends on multiple conformational substates2, and disease-causing point mutations often cause population changes within these substates3,4. We demonstrate that clustering a multiple-sequence alignment by sequence similarity enables AlphaFold2 to sample alternative states of known metamorphic proteins with high confidence. Using this m...
-
作者：Jasechko, Scott; Seybold, Hansjorg; Perrone, Debra; Fan, Ying; Shamsudduha, Mohammad; Taylor, Richard G.; Fallatah, Othman; Kirchner, James W.
作者单位：University of California System; University of California Santa Barbara; Swiss Federal Institutes of Technology Domain; ETH Zurich; University of California System; University of California Santa Barbara; Rutgers University System; Rutgers University New Brunswick; University of London; University College London; University of London; University College London; King Abdulaziz University; King Abdulaziz University; Swiss Federal Institutes of Technology Domain; Swiss Federal Institute for Forest, Snow & Landscape Research; University of California System; University of California Berkeley
摘要：Groundwater resources are vital to ecosystems and livelihoods. Excessive groundwater withdrawals can cause groundwater levels to decline(1-10), resulting in seawater intrusion(11), land subsidence(12,13), streamflow depletion(14-16) and wells running dry(17). However, the global pace and prevalence of local groundwater declines are poorly constrained, because in situ groundwater levels have not been synthesized at the global scale. Here we analyse in situ groundwater-level trends for 170,000 m...
-
作者：Heo, Jun; Kim, Doyeong; Segalina, Alekos; Ki, Hosung; Ahn, Doo-Sik; Lee, Seonggon; Kim, Jungmin; Cha, Yongjun; Lee, Kyung Won; Yang, Jie; Nunes, J. Pedro F.; Wang, Xijie; Ihee, Hyotcherl
作者单位：Institute for Basic Science - Korea (IBS); Korea Advanced Institute of Science & Technology (KAIST); Stanford University; United States Department of Energy (DOE); SLAC National Accelerator Laboratory; University of Nebraska System; University of Nebraska Lincoln; Samsung Electronics; Samsung; Tsinghua University; Diamond Light Source
摘要：Molecular ions are ubiquitous and play pivotal roles1-3 in many reactions, particularly in the context of atmospheric and interstellar chemistry4-6. However, their structures and conformational transitions7,8, particularly in the gas phase, are less explored than those of neutral molecules owing to experimental difficulties. A case in point is the halonium ions9-11, whose highly reactive nature and ring strain make them short-lived intermediates that are readily attacked even by weak nucleophi...
-
作者：Kragh, Helge
作者单位：University of Copenhagen
摘要：The iconic physicist's theories of relativity and atomic motions were not so revolutionary, a penetrating history argues.
-
作者：Macallister, Donald John
作者单位：UK Research & Innovation (UKRI); Natural Environment Research Council (NERC); NERC British Geological Survey
摘要：Measurements of groundwater levels in 170,000 wells reveal the global extent of groundwater decline. But the data also show that such depletion is not inevitable in a changing climate, providing hope for a resilient water future. Measurements of groundwater in 170,000 wells.
-
作者：Witze, Alexandra
-
作者：Wong, Carissa
