25期

最新文章

• Telescopes team up to probe distant worlds AI翻译
  作者：Mann, Adam
• Basic interactions responsible for thymus function explain the convoluted medulla shape AI翻译
  作者：Muramatsu, David; Weyer, Henrik; Gartner, Florian M.; Frey, Erwin
  作者单位：University of Munich; University of Munich
  摘要：The thymus is one of the most important organs of the immune system. It is responsible for both the production of T cells and the prevention of their autoimmunity. It comprises two types of tissue: The cortex, where nascent T cells (thymocytes) are generated; and the medulla, embedded within the cortex, where autoreactive thymocytes are eliminated through negative selection. In mice, the medulla exhibits a complex, convoluted morphology, which has raised the question of whether its form impact...
• Synergetic hydrogen-bond network of functionalized graphene and cations for enhanced atmospheric water capture AI翻译
  作者：Ren, Xiaojun; Sui, Xiao; Karton, Amir; Nishina, Yuta; Lin, Tongxi; Asanoma, Daisuke; Owens, Llewellyn; Ji, Dali; Wen, Xinyue; Quintano, Vanesa; Tripathi, Komal; Pant, Kamal K.; Dai, Liming; Andreeva, Daria, V; Foller, Tobias; Novoselov, Kostya S.; Joshi, Rakesh
  作者单位：University of New South Wales Sydney; Harbin Institute of Technology; University of New England; Okayama University; Institute for Functional Intelligent Materials (I-FIM); National University of Singapore; Consejo Superior de Investigaciones Cientificas (CSIC); Barcelona Institute of Science & Technology; Catalan Institute of Nanoscience & Nanotechnology (ICN2); Barcelona Institute of Science & Technology; Indian Institute of Technology System (IIT System); Indian Institute of Technology (IIT) - Roorkee; University of New South Wales Sydney; National University of Singapore
  摘要：Water molecules at the solid-liquid interface display intricate behaviors sensitive to small changes. The presence of different interfacial components, such as cations or functional groups, shapes the physical and chemical properties of the hydrogen-bond network. Understanding such interfacial hydrogen-bond networks is essential for a large range of applications and scientific questions. To probe the interfacial hydrogen-bond network, atmospheric water capture is a powerful tool. Here, we expe...
• Multistage nucleation pathway in LiF molten salt mirrors the crystal-melt interface structure AI翻译
  作者：Fan, Zhao; Rawat, Deepak; Zarzycki, Piotr; Whittaker, Michael L.; Asta, Mark
  作者单位：United States Department of Energy (DOE); Lawrence Berkeley National Laboratory; University of California System; University of California Berkeley; United States Department of Energy (DOE); Lawrence Berkeley National Laboratory
  摘要：Despite over a century of studies, fundamental questions remain about the processes governing crystal nucleation from melts or solutions. Research over the past three decades has presented mounting evidence for kinetic pathways of crystal nucleation that are more complex than envisioned by the simplest forms of classical theory. Such observations have been presented for colloidal and elemental systems with covalent and metallic bonding. Despite the technological and geochemical importance of m...
• Sp140L functions as a herpesvirus restriction factor suppressing viral transcription and activating interferon- stimulated genes AI翻译
  作者：Cable, Jana M.; Wongwiwat, Wiyada; Grabowski, Jenna C.; White, Robert E.; Luftig, Micah A.
  作者单位：Duke University; Imperial College London
  摘要：Herpesviruses, including Epstein-Barr virus (EBV)-a human oncogenic virus and essential trigger of multiple sclerosis-must bypass host DNA-sensing mechanisms to establish lifelong, latent infection. Therefore, herpesviruses encode viral proteins to disrupt key host factors involved in DNA sensing and viral restriction. The first viral latency protein expressed, EBNA-LP, is essential for transformation of na & iuml;ve B cells and establishment of viral gene expression, yet its role in evading h...
• Terrestrial locomotion of microscopic robots enabled by 3D nanomembranes with nonreciprocal shape morphing AI翻译
  作者：Wang, Yang; Li, Xing; Liu, Chang; Wang, Yunqi; You, Chunyu; Zhu, Hong; Zheng, Zhi; Zhang, Ziyu; Jiang, Guobang; Dong, Xiang; Cai, Tianjun; Tian, Ziao; Di, Zengfeng; Huang, Gaoshan; Chen, Xiangzhong; Song, Enuring; Cui, Jizhai; Mei, Yongfeng
  作者单位：Fudan University; Fudan University; Fudan University; Chinese Academy of Sciences; Shanghai Institute of Microsystem & Information Technology, CAS; Fudan University
  摘要：Microscopic robots exhibit efficient locomotion in liquids by leveraging fluid dynamics and chemical reactions to generate force asymmetry, thereby enabling critical applications in photonics and biomedicine. However, achieving controllable locomotion of such robots on terrestrial surfaces remains challenging because fluctuating adhesion on nonideal surfaces disrupts the necessary asymmetry for propulsion. Here, we present a microscopic robot composed of three-dimensional nanomembranes, which ...
• How surface charges affect interdroplet freezing AI翻译
  作者：Yang, Siyan; Ji, Bingqiang; Feng, Yawei; Jin, Yuankai; Xu, Wanghuai; Lu, Jingyi; Qin, Xuezhi; Zhang, Huanhuan; Li, Mingyu; Xu, Zhenyu; Liu, Xiaonan; Xu, Luqing; Wang, Dehui; Wen, Rongfu; Wang, Zhenying; Wang, Steven; Ma, Xuehu; Wang, Zuankai
  作者单位：Hong Kong Polytechnic University; City University of Hong Kong; Beihang University; University of Electronic Science & Technology of China; Dalian University of Technology; State Key Laboratory Surfactant Fine Chemistry; Kyushu University
  摘要：The freezing of droplets on surfaces is closely relevant with various industrial processes such as aviation, navigation, and transportation. Previous studies mainly focus on physiochemically heterogeneous but electrically homogeneous surfaces, on which the presence of vapor pressure gradient between droplets is the predominant mechanism for interdroplet freezing bridging, propagation, and eventual frosting across the entire surface. An interesting yet unanswered question is whether electrostat...
• Measurement of the dynamic charge susceptibility near the charge density wave transition in ErTe3 AI翻译
  作者：Chaudhuri, Dipanjan; Jiang, Qianni; Guo, Xuefei; Chen, Jin; Kengle, Caitlin S.; Hoveyda-Marashi, Farzaneh; Bernal-Choban, Camille; de Vries, Niels; Chiang, Tai-Chang; Fradkin, Eduardo; Fisher, Ian R.; Abbamonte, Peter
  作者单位：University of Illinois System; University of Illinois Urbana-Champaign; University of Illinois System; University of Illinois Urbana-Champaign; Stanford University; University of Illinois System; University of Illinois Urbana-Champaign
  摘要：A charge density wave (CDW) is a phase of matter characterized by a periodic modulation of valence electron density coupled with lattice distortion. Its formation is closely tied to the dynamical charge susceptibility, x(q, 0)), which reflects the collective electron dynamics of the material. Despite decades of study, x(q, 0)) near a CDW transition has never been measured at nonzero momentum, q, with meV energy resolution. Here, we investigate the canonical CDW transition in ErTe3 using moment...
• Humanized mice to model rare human diseases AI翻译
  作者：Suva, Larry J.
  作者单位：Texas A&M University System; Texas A&M University College Station
• An endosymbiotic origin of the crimson pigment from the lac insect AI翻译
  作者：Vaishally; Pal, Sourajyoti; Thyagarajan, Kedhar R.; Shukla, Shantanu P.
  作者单位：Indian Institute of Science (IISC) - Bangalore; Indian Institute of Science (IISC) - Bangalore
  摘要：Symbioses with microorganisms expand the genetic and metabolic repertoire of many insects. The lac insect Kerria lacca (Hemiptera: Sternorrhyncha) is a phloem-feeding scale insect that is brightly colored due to the presence of natural polyhydroxy-anthraquinone pigments called laccaic acids. The deep red pigments possibly provide defense against pathogens and predators and are commercially important as dyes in textiles, lacquerware, and cosmetics. Laccaic acids are categorized as polyketides c...