Science

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• Continental breakup-driven uplift instigated East Antarctic Ice Sheet formation AI翻译
  作者：Gernon, Thomas M.; Hincks, Thea K.; Goodwin, Philip; Paxman, Guy J. G.; Brune, Sascha; Rohling, Eelco J.; Keir, Derek; Braun, Jean
  作者单位：NERC National Oceanography Centre; University of Southampton; Helmholtz Association; GFZ Helmholtz Centre for Geosciences; Durham University; University of Potsdam; Utrecht University; University of Florence
  摘要：Why Antarctica became glaciated similar to 34 million years ago (Ma) remains debated, as relatively warm climates and sea temperatures appear inconsistent with ice sheet formation. Although a critical decline in CO2 is considered primarily responsible, evidence suggests that other factors were important, too. We investigated whether regional topographic uplift, rooted in Jurassic continental breakup and mantle-surface feedbacks, enabled nucleation of the East Antarctic Ice Sheet (EAIS). By int...
• WWII and the evolution of US federal research funding AI翻译
  作者：Gross, Daniel P.; Sampat, Bhaven N.
  作者单位：Duke University; National Bureau of Economic Research; Johns Hopkins University
• Lab creates new kind of synthetic cell AI翻译
  作者：Kupferschmidt, Kai
• Structural insights into spectral tuning and retinal exchange in cone visual pigments AI翻译
  作者：Ohashi, Sayaka; Katayama, Kota; Kojima, Asato; Yang, Xuchun; Fukuda, Masahiro; Sacchetta, Filippo; Suno, Ryoji; Sugita, Yukihiko; Nuemket, Nipawan; Kim, Suhyang; Kobayashi, Kazuhiro; Imai, Hiroo; Iwata, So; Nango, Eriko; Kobayashi, Takuya; Noda, Takeshi; Olivucci, Massimo; Kato, Hideaki E.; Kandori, Hideki
  作者单位：Nagoya Institute of Technology; Japan Science & Technology Agency (JST); Japan Science & Technology Agency (JST); University of Tokyo; University of Siena; Japan Science & Technology Agency (JST); Kansai Medical University; Kyoto University; Japan Synchrotron Radiation Research Institute; RIKEN; Kyoto University; Kyoto University; Tohoku University; University System of Ohio; Bowling Green State University; University System of Ohio; Bowling Green State University
  摘要：Color vision in catarrhine primates relies on red-, green-, and blue-sensitive cone pigments that share an 11-cis-retinal chromophore but differ in absorption maxima. Red and green pigments arose by recent gene duplication and differ at only a few residues. Here, we report cryo-electron microscopy structures of red and green cone pigments from the cynomolgus macaque (Macaca fascicularis) integrated with low-temperature vibrational spectroscopy and quantum mechanical and molecular mechanical mo...
• Scalable fabrication of COF membranes for aliphatic/aromatic separation of crude oil AI翻译
  作者：Cao, Li; An, Shuhao; Yuan, Bingbing; Li, Zhen; Samaras, Vasilios G.; Xu, Ting; Zhang, Xixiang; Zhang, Huabin; Lai, Zhiping
  作者单位：King Abdullah University of Science & Technology; King Abdullah University of Science & Technology; King Abdullah University of Science & Technology
  摘要：Distillation has been the cornerstone of crude oil refining for more than a century, relying on boiling point differences for fractionation. Although effective, it is highly energy-intensive and lacks the precision to separate specific hydrocarbon classes. We report crystalline covalent organic framework (COF) membranes with well-defined micropores and alkyl-functionalized frameworks that combine molecular sieving with preferential affinity to enrich aliphatics. An electric field-assisted roll...
• Paws for thought AI翻译
  作者：Spitschan, Manuel
  作者单位：Technical University of Munich; Max Planck Society
• Tracking human mobility for wildlife conservation AI翻译
  作者：Beaudrot, Lydia
  作者单位：Michigan State University; Michigan State University
  摘要：Human mobility data expand ecological analyses of people's impact on wild animals
• Dynamics of disordered quantum systems with two- and three-dimensional tensor networks AI翻译
  作者：Tindall, Joseph; Mello, Antonio Francesco; Fishman, Matthew; Stoudenmire, E. Miles; Sels, Dries
  作者单位：Simons Foundation; Flatiron Institute; International School for Advanced Studies (SISSA); Boston University
  摘要：Large-scale quantum annealing dynamics of Ising spin glasses were recently implemented on D-Wave's Advantage2 system on a range of lattices. After extensive comparison with existing numerical methods, these experiments were claimed to be beyond the reach of classical computation. Here, we simulated these spin-glass models with lattice-specific tensor networks, using belief propagation (BP) to keep up with the entanglement generated during the time evolution and then extracting expectation valu...
• Amazon dredging law exposes governance gaps AI翻译
  作者：Fernandes, Stephannie; Leal, Cecilia; Castello, Leandro; Giarrizzo, Tommaso; Couto, Thiago B. A.
  作者单位：State University System of Florida; Florida International University; Lancaster University; Universidade Federal de Lavras; Virginia Polytechnic Institute & State University; Universidade Federal do Ceara; University of East Anglia
• MORAL ECONOMICS AI翻译
  作者：Thesmar, David
  作者单位：Massachusetts Institute of Technology (MIT)