Science

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• Genomic insights into social life in Neolithic Anatolia AI翻译
  作者：Arbuckle, Benjamin S.
  作者单位：University of North Carolina; University of North Carolina Chapel Hill; University of North Carolina School of Medicine
• Evidence for Hadean mafic intrusions in the Nuvvuagittuq Greenstone Belt, Canada AI翻译
  作者：Sole, C.; O'Neil, J.; Rizo, H.; Paquette, J. -L; Benn, D.; Plakholm, J.
  作者单位：University of Ottawa; Carleton University; University of Ottawa; Institut de Recherche pour le Developpement (IRD); Centre National de la Recherche Scientifique (CNRS); Universite Clermont Auvergne (UCA)
  摘要：Many questions remain regarding Earth's earliest crust owing to the rarity of Hadean (>4.03 billion-year-old) rocks and minerals. The Nuvvuagittuq Greenstone Belt (NGB) in Canada may be the only known remnant of Hadean crust, although its age is debated, ranging from >= 3.75 to 4.3 billion years old. Mafic intrusions within this belt were specifically sampled and analyzed to investigate the timing of their magmatic differentiation. Correlations between samarium/neodymium (Sm/Nd) and Nd-143/Nd-...
• Tumors may get energy boost from nerve cells' mitochondria AI翻译
  作者：Leslie, Mitch
• Producing hunger AI翻译
  作者：Stark, Laura
  作者单位：Vanderbilt University
• Cascading land surface hazards as a nexus in the Earth system AI翻译
  作者：Yanites, Brian J.; Clark, Marin K.; Roering, Joshua J.; West, A. Joshua; Zekkos, Dimitrios; Baldwin, Jane W.; Cerovski-Darriau, Corina; Gallen, Sean F.; Horton, Daniel E.; Kirby, Eric; Leshchinsky, Ben A.; Mason, H. Benjamin; Moon, Seulgi; Barnhart, Katherine R.; Booth, Adam; Czuba, Jonathan A.; McCoy, Scott; McGuire, Luke; Pfeiffer, Allison; Pierce, Jennifer
  作者单位：Indiana University System; Indiana University Bloomington; University of Michigan System; University of Michigan; University of Oregon; University of Southern California; University of California System; University of California Berkeley; University of California System; University of California Irvine; Columbia University; United States Department of the Interior; United States Geological Survey; Colorado State University System; Colorado State University Fort Collins; Northwestern University; University of North Carolina; University of North Carolina Chapel Hill; University of North Carolina School of Medicine; Oregon State University; Nevada System of Higher Education (NSHE); University of Nevada Reno; University of California System; University of California Los Angeles; Portland State University; Virginia Polytechnic Institute & State University; University of Arizona; Western Washington University; Boise State University
  摘要：This Review synthesizes progress and outlines a new framework for understanding how land surface hazards interact and propagate as sediment cascades across Earth's surface, influenced by interactions among the atmosphere, biosphere, hydrosphere, and solid Earth. Recent research highlights a gap in understanding these interactions on human timescales, given rapid climatic change and urban expansion into hazard-prone zones. We review how surface processes such as coseismic landslides and post-fi...
• Gradient refractive indices enable squid structural color and inspire multispectral materials AI翻译
  作者：Bogdanov, Georgii; Strzelecka, Aleksandra Anna; Kaimal, Nikhil; Senft, Stephen L.; Lee, Sanghoon; Hanlon, Roger T.; Gorodetsky, Alon A.
  作者单位：University of California System; University of California Irvine; Marine Biological Laboratory - Woods Hole; University of California System; University of California Irvine
  摘要：The manipulation of light by means of materials with varying refractive index distributions is widespread among natural systems and modern technologies. However, understanding how animals leverage refractive index differences for dynamic color changes and then translating such insight into tunable optical devices remains challenging. We experimentally and computationally demonstrated that iridescent cells (iridophores) containing Bragg reflectors with sinusoidal-wave (rugate) refractive index ...
• The power of reinvention AI翻译
  作者：Moya, Ivan M.
• Let there be light: From passive agricultural sensing to active intervention AI翻译
  作者：Yin, Xiaobo
• National Academies adopts new business model amid financial storm AI翻译
  作者：Mervis, Jeffrey
• Spontaneous formation of urea from carbon dioxide and ammonia in aqueous droplets AI翻译
  作者：Mohajer, Mercede Azizbaig; Basuri, Pallab; Evdokimov, Andrei; David, Gregory; Zindel, Daniel; Miliordos, Evangelos; Signorell, Ruth
  作者单位：Swiss Federal Institutes of Technology Domain; ETH Zurich; Auburn University System; Auburn University
  摘要：Urea is a key molecule in the search for the origin of life and a basic chemical produced in large quantities by industry. Its formation from ammonia and carbon dioxide requires either high pressures and temperatures or, under milder conditions, catalysts or additional reagents. In this study, we observed the spontaneous formation of urea under ambient conditions from ammonia and carbon dioxide in the surface layer of aqueous droplets. Single, optically trapped droplets were probed by using Ra...