37期

最新文章

• Evolution of flowering phenology over 44 years of climate change AI翻译
  作者：Van Deurs, Samantha; Fior, Simone; Singer, Alon; Mayzlish-Gati, Einav; Alexander, Jake M.
  作者单位：Swiss Federal Institutes of Technology Domain; ETH Zurich
  摘要：Evolution is expected to be crucial for the persistence of some populations exposed to changing climate, but demonstrations of rapid evolution in wild populations associated with ongoing climate change are scarce. Inferences about possible adaptive responses rest heavily on space-for-time approaches that are fraught with assumptions that are difficult to verify. In contrast, resurrection experiments offer a direct method to observe evolutionary changes over time but rarely span the periods of ...
• Reading the ribosome critically: A palindrome hypothesis and the limits of molecular inference AI翻译
  作者：Petrov, Anton S.
  作者单位：National Aeronautics & Space Administration (NASA); University System of Georgia; Georgia Institute of Technology; University System of Georgia; Georgia Institute of Technology
• QnAs with Jenny P. Y. Ting AI翻译
  作者：Ravindran, Sandeep
• Programming sequential deployment of origami via kinematic transition fronts AI翻译
  作者：Imada, Rinki; Tachi, Tomohiro
  作者单位：Japan Aerospace Exploration Agency (JAXA); Institute of Space & Astronautical Science (ISAS); University of Tokyo
  摘要：Propagating transition fronts, in which local interactions sequentially trigger state changes, are widely observed across natural, biological, and engineered systems. While such propagation has been engineered using energy-driven instabilities, front propagation governed purely by geometric constraints remains underexplored and lacks a general design framework. In particular, how to program sequential deployment in origami through such kinematic propagation remains an open challenge. Here, we ...
• The native structure of the Trichonympha centriole cartwheel reveals a zigzag stacking pattern AI翻译
  作者：Rowsell, Carlee M.; Kubo, Shintaroh; Arin, Asuva; Legal, Thibault; Yu, Molly Yining; Bui, Khanh Huy
  作者单位：McGill University; University of Tokyo; McGill University
  摘要：Centrioles are essential cellular organelles with complex architectures. Their earliest assembly intermediate-the cartwheel-has a ninefold symmetry established by Spindle assembly abnormal protein 6 (SAS-6). Using cryoelectron tomography and subtomogram averaging, we resolved the native structure of the SAS-6 rings within the cartwheel of the exceptionally long Trichonympha proximal centriole, identifying a 16-nm axial periodicity was formed by stacked rings of V-shaped SAS-6 tetramers, which ...
• The synthetic validity problem in AI-generated science AI翻译
  作者：Teeny, Jacob D.; Luttrell, Andrew; Lee, Dongchan
  作者单位：Northwestern University; Ball State University
• Neuromotor modules revealed by direct electrical stimulation of the human primary motor cortex AI翻译
  作者：Xie, Jodie J.; Huang, Subing; Lau, Kelvin Y. S.; Kong, Amy H. S.; Chan, Rosa H. M.; Woo, Peter Y. M.; Cheung, Vincent C. K.
  作者单位：Chinese University of Hong Kong; Chinese University of Hong Kong; City University of Hong Kong; Kwong Wah Hospital; Prince of Wales Hospital Hong Kong; Kwong Wah Hospital; Chinese University of Hong Kong; Chinese Academy of Sciences; Chinese University of Hong Kong
  摘要：Muscle synergies extracted from multimuscle electromyographic (EMG) signals are widely interpreted as fundamental building blocks of motor control that coordinate groups of muscles during movement. Whether EMG-derived muscle synergies represent genuine neurally encoded modules or motor regularities arising from task or biomechanical constraints has been hotly debated because neurophysiological data that definitively demonstrate the neural basis of muscle synergies in humans have been lacking. ...
• The structural dynamics of music drive acute stress recovery through functional reorganization of stress-regulation networks AI翻译
  作者：You, Siqi; Zhang, Lei; Wu, Guowei; Du, Yi
  作者单位：Chinese Academy of Sciences; Nanjing Institute of Geology & Paleontology, CAS; Institute of Psychology, CAS; University of Toronto; Baycrest; Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS
  摘要：Music is widely utilized to support recovery from stress, yet the precise neural mechanisms driving this therapeutic effect remain poorly understood. Crucially, it has been unclear whether music provides unique neurobiological benefits or simply acts as a general, relaxing auditory stimulus. Here, we demonstrate that music selectively facilitates multisystem recovery from acute stress-enhancing positive mood (PM) and accelerating autonomic stabilization (electrodermal activity and heart rate)-...
• Evolution after whole-genome duplication (WGD) drives phenotypic and transcriptomic divergence more than WGD in an autopolyploid herb (vol 123, e2533430123, 2026) AI翻译
  作者：Grunig, Sandra; Choudhury, Rimjhim Roy; Parisod, Christian
• PFAS-defined liquid crystal monomers: An overlooked class of organofluorine contaminants AI翻译
  作者：Li, Xu; Li, Huixian; Tong, Xuneng; Wang, Qi; Leung, Kenneth M. Y.; He, Yuhe
  作者单位：City University of Hong Kong; City University of Hong Kong; City University of Hong Kong