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作者:Yang, Xiaobin; Li, Yangxue; Wu, Dan; Yan, Linlin; Guan, Jingzhu; Wen, Yajie; Bai, Yongping; Mamba, Bhekie B.; Darling, Seth B.; Shao, Lu
作者单位:Harbin Institute of Technology; Harbin Institute of Technology; University of South Africa; United States Department of Energy (DOE); Argonne National Laboratory; United States Department of Energy (DOE); Argonne National Laboratory; University of Chicago
摘要:Water-energy sustainability will depend upon the rapid development of advanced pressure- driven separation membranes. Although energy- efficient, water- treatment membranes are constrained by ubiquitous fouling, which may be alleviated by engineering self- cleaning membrane interfaces. In this study, a metal- polyphenol network was designed to direct the armorization of catalytic nanofilms (ca. 18 nm) on inert polymeric membranes. The chelation- directed mineralized coating exhibits high polar...
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作者:Zheng, Kaikai; Ghosh, Shankar; Granick, Steve
作者单位:Institute for Basic Science - Korea (IBS); University of Massachusetts System; University of Massachusetts Amherst; Tata Institute of Fundamental Research (TIFR)
摘要:The usual basis to analyze heat transfer within materials is the equation formulated 200 years ago, Fourier's law, which is identical mathematically to the mass diffusion equation, Fick's law. Revisiting this assumption regarding heat transport within translucent materials, performing the experiments in vacuum to avoid air convection, we compare the model predictions to infrared - based measurements with nearly mK temperature resolution. After heat pulses, we find macroscale non- Gaussian tail...
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作者:Cavieres-Lepe, Javier; Amini, Emad; Zabel, Maia; Nassel, Dick R.; Stanewsky, Ralf; Wegener, Christian; Ewer, John
作者单位:Universidad de Valparaiso; University of Wurzburg; Stockholm University; University of Munster; Universidad de Valparaiso
摘要:Circadian clocks impose daily periodicities to behavior, physiology, and metabolism. This control is mediated by a central clock and by peripheral clocks, which are synchronized to provide the organism with a unified time through mechanisms that are not fully understood. Here, we characterized in Drosophila the cellular and molecular mechanisms involved in coupling the central clock and the peripheral clock located in the prothoracic gland (PG), which together control the circadian rhythm of e...
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作者:Lupia, Arthur; Allison, David B.; Jamieson, Kathleen Hall; Heimberg, Jennifer; Skipper, Magdalena; Wolf, Susan M.
作者单位:University of Michigan System; University of Michigan; University of Michigan System; University of Michigan; Indiana University System; Indiana University Bloomington; University of Pennsylvania; National Academies of Sciences, Engineering & Medicine; University of Minnesota System; University of Minnesota Twin Cities
摘要:In recent years, many questions have been raised about whether public confidence in science is changing. To clarify recent trends in the public's confidence and factors that are associated with these feelings, an effort initiated by the National Academies' Strategic Council for Research Excellence, Integrity, and Trust (the Strategic Council) analyzed findings from multiple survey research organizations. The Strategic Council's effort, which began in 2022, found that U.S. public confidence in ...
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作者:Nakamura, Teruya; Ohyama, Chiaki; Sakamoto, Madoka; Toma, Tsugumasa; Tateishi, Hiroshi; Matsuo, Mihoko; Chirifu, Mami; Ikemizu, Shinji; Morioka, Hiroshi; Fujita, Mikako; Inoue, Jun- ichiro; Yamagata, Yuriko
作者单位:Kumamoto University; Kumamoto University; University of Tokyo
摘要:Nuclear factor KB (NF -KB) is activated by various inflammatory and infectious molecules and is involved in immune responses. It has been elucidated that ADP-(3-D- manno- heptose (ADP-Hep), a metabolite in gram- negative bacteria, activates NF -KB through alpha- kinase 1 (ALPK1)-TIFA-TRAF6 signaling. ADP-Hep stimulates the kinase activity of ALPK1 for TIFA phosphorylation. Complex formation between phosphorylation- dependent TIFA oligomer and TRAF6 promotes the polyubiquitination of TRAF6 for ...
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作者:Szathmary, Eoers
作者单位:HUN-REN; HUN-REN Centre for Ecological Research
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作者:Duffy, Grant A.; Montiel, Fabien; Purich, Ariaan; Fraser, Ceridwen I.
作者单位:University of Otago; University of Otago; Monash University; Monash University
摘要:Polynyas, areas of open water embedded within sea ice, are a key component of ocean- atmosphere interactions that act as hotspots of sea - ice production, bottom - water formation, and primary productivity. The specific drivers of polynya dynamics remain, however, elusive and coupled climate models struggle to replicate Antarctic polynya activity. Here, we leverage a 44- y time series of Antarctic sea ice to elucidate long - term trends. We identify Antarctic - wide linear increases and a hith...
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作者:Porat, Amir; Tekinalp, Arman; Bhosale, Yashraj; Gazzola, Mattia; Meroz, Yasmine
作者单位:Tel Aviv University; Tel Aviv University; University of Illinois System; University of Illinois Urbana-Champaign; Tel Aviv University
摘要:By masterfully balancing directed growth and passive mechanics, plant roots are remarkably capable of navigating complex heterogeneous environments to find resources. Here, we present a theoretical and numerical framework which allows us to interrogate and simulate the mechanical impact of solid interfaces on the growth pattern of plant organs. We focus on the well-known waving, coiling, and skewing patterns exhibited by roots of Arabidopsis thaliana when grown on inclined surfaces, serving as...
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作者:Li, Bo; Wang, Xiao-Qian; Li, Qin-Yao; Xu, Da; Li, Jing; Hou, Wen-Tao; Chen, Yuxing; Jiang, Yong-Liang; Zhou, Cong-Zhao
作者单位:Chinese Academy of Sciences; University of Science & Technology of China, CAS
摘要:Coordinated carbon and nitrogen metabolism is crucial for bacteria living in the fluctuating environments. Intracellular carbon and nitrogen homeostasis is maintained by a sophisticated network, in which the widespread signaling protein PII acts as a major regulatory hub. In cyanobacteria, PII was proposed to regulate the nitrate uptake by an ABC (ATP- binding cassette)type nitrate transporter NrtABCD, in which the nucleotide- binding domain of NrtC is fused with a C- terminal regulatory domai...
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作者:Kim, Ji-Young; McGlothin, Connor; Cha, Minjeong; Pfaffenberger, Zechariah J.; Emre, Emine Sumeyra Turali; Choi, Wonjin; Kim, Sanghoon; Biteen, Julie S.; Kotov, Nicholas A.
作者单位:University of Michigan System; University of Michigan; University of Michigan System; University of Michigan; University of Michigan System; University of Michigan; Rensselaer Polytechnic Institute; University of Michigan System; University of Michigan; University of Michigan System; University of Michigan
摘要:Chiral plasmonic surfaces with 3D forests from nanohelicoids should provide strong optical rotation due to alignment of helical axis with propagation vector of photons. However, such three- dimensional nanostructures also demand multi - step nanofabrication, which is incompatible with many substrates. Large - scale photonic patterns on polymeric and flexible substrates remain unattainable. Here, we demonstrate the substrate- tolerant direct - write printing and patterning of silver nanohelicoi...