8073期

最新文章

• Solving aviation's climate-action conundrum AI翻译
  作者：Voigt, Christiane
  作者单位：Helmholtz Association; German Aerospace Centre (DLR); Johannes Gutenberg University of Mainz
• 'Place' neurons recognize the same spot from close by and far away AI翻译
  作者：Mayer, Uwe
  作者单位：University of Trento
  摘要：Place cells are neurons that encode spatial locations. Experiments in chickadees reveal that the cells activate even when those locations are viewed from a distance.
• China's fossil-fuel challenge - how to build a bridge to renewables AI翻译
  作者：Xu, Yihe
• The mysterious missing ingredient in the highest-energy cosmic rays AI翻译
  作者：[Anonymous]
• Trade-offs in aviation impacts on climate favour non-CO2 mitigation AI翻译
  作者：Prather, Michael J.; Gettelman, Andrew; Penner, Joyce E.
  作者单位：University of California System; University of California Irvine; United States Department of Energy (DOE); Pacific Northwest National Laboratory; University of Michigan System; University of Michigan
  摘要：Climate assessments of civil aviation1,2 have consistently quantified the dominant climate-forcing components: (1) CO2 emissions, (2) NOx (NO + NO2) emissions and (3) persistent contrails. All three components exert a positive radiative forcing (RF) and lead to climate warming of similar magnitudes. The aviation community is actively seeking to reduce its climate footprint through advanced engine technologies, more sustainable aviation fuel and optimal routing plans3, 4, 5, 6, 7, 8, 9, 10, 11-...
• Migratory moths navigate using the stars AI翻译
  作者：Lohmann, Kenneth J.
  作者单位：University of North Carolina; University of North Carolina Chapel Hill; University of North Carolina School of Medicine
  摘要：Australian migratory moths use the night sky to maintain their course when they travel long distances to shelter in cool caves during the arid summer.
• Why publishing referee reports could backfire on public trust AI翻译
  作者：Debnath, Ramit; Alvarez, R. Michael; Ebanks, Danny
  作者单位：University of Cambridge; California Institute of Technology; Harvard University
• Monster black hole merger is biggest ever seen AI翻译
  作者：O'Callaghan, Jonathan
• How sugar overload in early life affects the brain later AI翻译
  作者：[Anonymous]
• Stereodivergent transformation of a natural polyester to enantiopure PHAs AI翻译
  作者：Tian, Jun-Jie; Li, Ruirui; Quinn, Ethan C.; Nam, Jiyun; Chokkapu, Eswara Rao; Zhang, Zhen; Zhou, Li; Gowda, Ravikumar R.; Chen, Eugene Y. -X.
  作者单位：Colorado State University System; Colorado State University Fort Collins
  摘要：Natural chiral polymers, such as DNA, proteins, cellulose and poly[(R)-3-hydroxybutyrate] ((R)-P3HB), are prevalent in their enantiopure forms1,2. Existing methods to synthesize enantiopure polymers focus on enantiospecific polymerization, in which only one specific enantiomer is obtained from the corresponding chiral monomer3, 4, 5-6. Here we introduce a catalytic stereodivergent synthetic strategy to access all enantiopure di-isotactic poly(3-hydroxyalkanoate) (PHA) diastereomers from bacter...