2025

最新文章

• Private fusion firms put bold claims to the test AI翻译
  作者：Clery, Daniel
• Mpox drug wins approval in Japan-but it doesn't work AI翻译
  作者：Cohen, Jon
• Canadian science girds for shift AI翻译
  作者：Owens, Brian
• A COVID-19 pardon and ban AI翻译
  作者：Brainard, Jeffrey
• Adaptations in surprising places AI翻译
  作者：Rosvall, Kimberly A.
  作者单位：Indiana University System; Indiana University Bloomington
• Antarctic krill vertical migrations modulate seasonal carbon export AI翻译
  作者：Smith, A. J. R.; Wotherspoon, S.; Ratnarajah, L.; Cutter, G. R.; Macaulay, G. J.; Hutton, B.; King, R.; Kawaguchi, S.; Cox, M. J.
  作者单位：University of Tasmania; Australian Antarctic Division; University System Of New Hampshire; University of New Hampshire
  摘要：Vertical migrations by marine organisms contribute to carbon export by consumption of surface phytoplankton followed by defecation in the deep ocean. However, biogeochemical models lack observational data, leading to oversimplified representation of carbon cycling by migrating organisms, such as Antarctic krill (Euphausia superba). Using a numerical model informed by 1 year of acoustic observations in the East Antarctic, we estimated the total particulate organic carbon (POC) flux from krill f...
• Variable impacts of land-based climate mitigation on habitat area for vertebrate diversity AI翻译
  作者：Smith, Jeffrey R.; Beaury, Evelyn M.; Cook-Patton, Susan C.; Levine, Jonathan M.
  作者单位：Princeton University; Princeton University; New York Botanical Garden; Nature Conservancy
  摘要：Pathways to achieving net zero carbon emissions commonly involve deploying reforestation, afforestation, and bioenergy crops across millions of hectares of land. It is often assumed that by helping to mitigate climate change, these strategies indirectly benefit biodiversity. Here, we modeled the climate and habitat requirements of 14,234 vertebrate species and show that the impact of these strategies on species' habitat area tends not to arise through climate mitigation, but rather through hab...
• A bite of expertise AI翻译
  作者：Childress, Luke
  作者单位：University of Arkansas System; University of Arkansas Fayetteville
• Systematic identification of Y-chromosome gene functions in mouse spermatogenesis AI翻译
  作者：Subrini, Jeremie; Varsally, Wazeer; Balsells, Irina Balaguer; Bensberg, Maike; Sioutas, Georgios; Ojarikre, Obah; Maciulyte, Valdone; Gylemo, Bjoern; Crawley, Katharine; Courtis, Katherine; de Rooij, Dirk G.; Turner, James M. A.
  作者单位：Francis Crick Institute; Linkoping University; Linkoping University; Francis Crick Institute; Utrecht University; University of Amsterdam; Academic Medical Center Amsterdam
  摘要：The mammalian Y chromosome is essential for male fertility, but which Y genes regulate spermatogenesis is unresolved. We addressed this by generating 13 Y-deletant mouse models. In Eif2s3y, Uty, and Zfy2 deletants, spermatogenesis was impaired. We found that Uty regulates spermatogonial proliferation, revealed a role for Zfy2 in promoting meiotic sex chromosome pairing, and uncovered unexpected effects of Y genes on the somatic testis transcriptome. In the remaining single Y-gene deletants, sp...
• Blue Origin emerges as competitor to SpaceX AI翻译
  作者：Brainard, Jeffrey