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作者：Witstok, Joris; Jakobsen, Peter; Maiolino, Roberto; Helton, Jakob M.; Johnson, Benjamin D.; Robertson, Brant E.; Tacchella, Sandro; Cameron, Alex J.; Smit, Renske; Bunker, Andrew J.; Saxena, Aayush; Sun, Fengwu; Alberts, Stacey; Arribas, Santiago; Baker, William M.; Bhatawdekar, Rachana; Boyett, Kristan; Cargile, Phillip A.; Carniani, Stefano; Charlot, Stephane; Chevallard, Jacopo; Curti, Mirko; Curtis-Lake, Emma; D'Eugenio, Francesco; Eisenstein, Daniel J.; Hainline, Kevin N.; Jones, Gareth C.; Kumari, Nimisha; Maseda, Michael V.; Perez-Gonzalez, Pablo G.; Rinaldi, Pierluigi; Scholtz, Jan; Ubler, Hannah; Williams, Christina C.; Willmer, Christopher N. A.; Willott, Chris; Zhu, Yongda
作者单位：University of Cambridge; University of Cambridge; University of Copenhagen; Niels Bohr Institute; University of London; University College London; University of Arizona; Smithsonian Institution; University of California System; University of California Santa Cruz; University of Oxford; Liverpool John Moores University; Consejo Superior de Investigaciones Cientificas (CSIC); CSIC - Centro de Astrobiologia (INTA); European Space Agency; European Space Astronomy Center; Scuola Normale Superiore di Pisa; Centre National de la Recherche Scientifique (CNRS); CNRS - National Institute for Earth Sciences & Astronomy (INSU); Sorbonne Universite; European Southern Observatory; University of Hertfordshire; Istituto Nazionale Astrofisica (INAF); Space Telescope Science Institute; University of Wisconsin System; University of Wisconsin Madison; Max Planck Society; National Research Council Canada
摘要：Cosmic reionization began when ultraviolet (UV) radiation produced in the first galaxies began illuminating the cold, neutral gas that filled the primordial Universe(1,2). Recent James Webb Space Telescope (JWST) observations have shown that surprisingly UV-bright galaxies were in place beyond redshift z = 14, when the Universe was less than 300 Myr old(3,4,5). Smooth turnovers of their UV continua have been interpreted as damping-wing absorption of Lyman-alpha (Ly-alpha), the principal hydrog...
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作者：[Anonymous]
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作者：Karna, Uditi; Lee, Min Sok; List, John A.; Simon, Andrew; Uchida, Haruka
作者单位：Columbia University; University of Chicago; Australian National University; National Bureau of Economic Research; University of Virginia
摘要：Educational disparities remain a key contributor to increasing social and wealth inequalities. To address this, researchers and policymakers have focused on average differences between racial groups or differences among students who are falling behind1. This focus potentially leads to educational triage, diverting resources away from high-achieving students, including those from racial minorities2,3. Here we focus on the 'racial excellence gap'-the difference in the likelihood that students fr...
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作者：Lebrat, Martin; Xu, Muqing; Kendrick, Lev Haldar; Kale, Anant; Gang, Youqi; Seetharaman, Pranav; Morera, Ivan; Khatami, Ehsan; Demler, Eugene; Greiner, Markus
作者单位：Harvard University; California State University System; San Jose State University; University of Barcelona; University of Barcelona; Swiss Federal Institutes of Technology Domain; ETH Zurich
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作者：George, Scott St.
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作者：Kwon, Diana
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作者：Naddaf, Miryam
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作者：Li, Bohan; Yuan, Zhiquan; Williams, James; Jin, Warren; Beckert, Adrian; Xie, Tian; Guo, Joel; Feshali, Avi; Paniccia, Mario; Faraon, Andrei; Bowers, John; Marandi, Alireza; Vahala, Kerry
作者单位：California Institute of Technology; California Institute of Technology; University of California System; University of California Santa Barbara
摘要：Entangled photon pairs from spontaneous parametric down-conversion (SPDC)1 are central to many quantum applications2, 3, 4, 5-6. SPDC is typically performed in non-centrosymmetric systems7 with an inherent second-order nonlinearity (chi(2))8, 9-10. We demonstrate strong narrowband SPDC with an on-chip rate of 0.8 million pairs per second in Si3N4. Si3N4 is the pre-eminent material for photonic integration and also exhibits the lowest waveguide loss (which is essential for integrated quantum ci...
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作者：Shi, Sophia M.; Suh, Ryan J.; Shon, D. Judy; Garcia, Francisco J.; Buff, Josephine K.; Atkins, Micaiah; Li, Lulin; Lu, Nannan; Sun, Bryan; Luo, Jian; To, Ning-Sum; Cheung, Tom H.; Mcnerney, M. Windy; Heiman, Myriam; Bertozzi, Carolyn R.; Wyss-Coray, Tony
作者单位：Stanford University; Stanford University; Stanford University; Stanford University; Massachusetts Institute of Technology (MIT); Massachusetts Institute of Technology (MIT); Stanford University; Hong Kong University of Science & Technology; Stanford University; US Department of Veterans Affairs; Veterans Health Administration (VHA); VA Palo Alto Health Care System; Stanford University; Howard Hughes Medical Institute
摘要：The blood-brain barrier (BBB) is highly specialized to protect the brain from harmful circulating factors in the blood and maintain brain homeostasis1,2. The brain endothelial glycocalyx layer, a carbohydrate-rich meshwork composed primarily of proteoglycans, glycoproteins and glycolipids that coats the BBB lumen, is a key structural component of the BBB3,4. This layer forms the first interface between the blood and brain vasculature, yet little is known about its composition and roles in supp...
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作者：Mellone, Ugo
