Science

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• The new reality for American academia AI翻译
  作者：Thorp, H. Holden
• Pseudogap and Fermi arc induced by Fermi surface nesting in a centrosymmetric skyrmion magnet AI翻译
  作者：Dong, Yuyang; Kinoshita, Yuto; Ochi, Masayuki; Nakachi, Ryu; Higashinaka, Ryuji; Hayami, Satoru; Wan, Yuxuan; Arai, Yosuke; Huh, Soonsang; Hashimoto, Makoto; Lu, Donghui; Tokunaga, Masashi; Aoki, Yuji; Matsuda, Tatsuma D.; Kondo, Takeshi
  作者单位：University of Tokyo; University of Osaka; University of Osaka; Tokyo Metropolitan University; Hokkaido University; Stanford University; United States Department of Energy (DOE); SLAC National Accelerator Laboratory; University of Tokyo
  摘要：Skyrmions in noncentrosymmetric materials are believed to occur due to the Dzyaloshinskii-Moriya interaction. By contrast, the skyrmion formation mechanism in centrosymmetric materials remains elusive. Here, we reveal the intrinsic electronic structure of the centrosymmetric GdRu2Si2 by selectively measuring magnetic domains using angle-resolved photoemission spectroscopy (ARPES). We found robust Fermi surface (FS) nesting, consistent with the magnetic modulation q-vector detected by the previ...
• 1,2-Acyl transposition through photochemical skeletal rearrangement of 2,3-dihydrobenzofurans AI翻译
  作者：Steele, Ryan T.; Fujiu, Motohiro; Sarpong, Richmond
  作者单位：University of California System; University of California Berkeley; Shionogi & Company Limited
  摘要：Saturated heterocycles are commonly adorned with groups that influence their biological properties. Synthetic methods that transpose existing substituents on saturated heterocycles to multiple peripheral positions are therefore highly valuable. In this work, we report a formal 1,2-acyl transposition through the photochemical exchange of the C2-C3 positions of C2-acylated dihydrobenzofurans. This strategy relies on an unusual photochemical isomerization of the dihydrobenzofuran core to a highly...
• Trump proposes massive cuts to research spending AI翻译
  作者：Cho, Adrian; Kaiser, Jocelyn; Malakoff, David; Mervis, Jeffrey; Service, Robert F.; Stokstad, Erik; Voosen, Paul
• Extending ketamine's antidepressant effects AI翻译
  作者：Hashimoto, Kenji
  作者单位：Chiba University
• Nature conservation policies are biased toward forests and neglect grassy ecosystems worldwide AI翻译
  作者：Pillar, Valerio D.; Overbeck, Gerhard E.
  作者单位：Universidade Federal do Rio Grande do Sul; Universidade Federal do Rio Grande do Sul
• NIH under siege AI翻译
  作者：Reardon, Sara
  作者单位：National Institutes of Health (NIH) - USA; NIH National Cancer Institute (NCI)
• An obstacle course for molecules AI翻译
  作者：Goldsmith, Randall H.; Brewster, Benjamin A.
  作者单位：University of Wisconsin System; University of Wisconsin Madison
• Imaging-guided deep tissue in vivo sound printing AI翻译
  作者：Davoodi, Elham; Li, Jiahong; Ma, Xiaotian; Najafabadi, Alireza Hasani; Yoo, Jounghyun; Lu, Gengxi; Sani, Ehsan Shirzaei; Lee, Sunho; Montazerian, Hossein; Kim, Gwangmook; Williams, Jason; Yang, Jee Won; Zeng, Yushun; Li, Lei S.; Jin, Zhiyang; Sadri, Behnam; Nia, Shervin S.; Wang, Lihong V.; Hsiai, Tzung K.; Weiss, Paul S.; Zhou, Qifa; Khademhosseini, Ali; Wu, Di; Shapiro, Mikhail G.; Gao, Wei
  作者单位：California Institute of Technology; California Institute of Technology; Rice University; Rice University; University of California System; University of California Los Angeles; University of California System; University of California Los Angeles
  摘要：Three-dimensional printing offers promise for patient-specific implants and therapies but is often limited by the need for invasive surgical procedures. To address this, we developed an imaging-guided deep tissue in vivo sound printing (DISP) platform. By incorporating cross-linking agent-loaded low-temperature-sensitive liposomes into bioinks, DISP enables precise, rapid, on-demand cross-linking of diverse functional biomaterials using focused ultrasound. Gas vesicle-based ultrasound imaging ...
• Replicating a tissue with sound waves AI翻译
  作者：Kuang, Xiao
  作者单位：University of Wisconsin System; University of Wisconsin Madison