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作者:Pena-Claros, Marielos; Nobre, Carlos
作者单位:Wageningen University & Research; Universidade de Sao Paulo
摘要:Early in August this year, a high-profile summit was held in Belem, Brazil, where the eight Amazonian countries discussed the future of the Amazon. The nations recognized that the Amazon is very close to reaching a tipping point for turning into a degraded ecosystem. The result of their discussions was the Belem Declaration, an ambitious plan to protect and conserve the Amazon forests and to support Indigenous Peoples and local communities. Concern arose, however, because they failed to agree ...
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作者:Trapani, Josh
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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...
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作者:Dickman, Jamie
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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...
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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 ...
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作者:Brainard, Jeffrey
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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
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作者:Kramer, Anna
摘要:Scheme to factor giant numbers could be more efficient than 30-year-old Shor's algorithm
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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...