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作者：Zhou, T. -W.; Cappellini, G.; Tusi, D.; Franchi, L.; Parravicini, J.; Repellin, C.; Greschner, S.; Inguscio, M.; Giamarchi, T.; Filippone, M.; Catani, J.; Fallani, L.
作者单位：University of Florence; Centre National de la Recherche Scientifique (CNRS); Communaute Universite Grenoble Alpes; Universite Grenoble Alpes (UGA); University of Geneva; University Campus Bio-Medico - Rome Italy; CEA; Communaute Universite Grenoble Alpes; Universite Grenoble Alpes (UGA)
摘要：The Hall effect, which originates from the motion of charged particles in magnetic fields, has deep consequences for the description of materials, extending far beyond condensed matter. Understanding such an effect in interacting systems represents a fundamental challenge, even for small magnetic fields. In this work, we used an atomic quantum simulator in which we tracked the motion of ultracold fermions in two-leg ribbons threaded by artificial magnetic fields. Through controllable quench dy...
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作者：Brainard, Jeffrey
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作者：Breda, Laura; Papp, Tyler E.; Triebwasser, Michael P.; Yadegari, Amir; Fedorky, Megan T.; Tanaka, Naoto; Abdulmalik, Osheiza; Pavani, Giulia; Wang, Yongping; Grupp, Stephan A.; Chou, Stella T.; Ni, Houping; Mui, Barbara L.; Tam, Ying K.; Weissman, Drew; Rivella, Stefano; Parhiz, Hamideh
作者单位：University of Pennsylvania; Pennsylvania Medicine; Childrens Hospital of Philadelphia; University of Pennsylvania; University of Michigan System; University of Michigan; University of Pennsylvania; Pennsylvania Medicine; Childrens Hospital of Philadelphia; University of Pennsylvania; Pennsylvania Medicine; Childrens Hospital of Philadelphia; University of Pennsylvania; University of Pennsylvania; Pennsylvania Medicine; Childrens Hospital of Philadelphia; University of Pennsylvania; University of Pennsylvania; University of Pennsylvania; University of Pennsylvania; Pennsylvania Medicine; Childrens Hospital of Philadelphia; University of Pennsylvania; Pennsylvania Medicine; Childrens Hospital of Philadelphia; University of Pennsylvania
摘要：Hematopoietic stem cells ( HSCs) are the source of all blood cells over an individual's lifetime. Diseased HSCs can be replaced with gene-engineered or healthy HSCs through HSC transplantation (HSCT). However, current protocols carry major side effects and have limited access. We developed CD117/ LNP-messenger RNA (mRNA), a lipid nanoparticle (LNP) that encapsulates mRNA and is targeted to the stem cell factor receptor (CD117) on HSCs. Delivery of the anti-human CD117/LNP-based editing system ...
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作者：Brainard, Jeffrey
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作者：Voosen, Paul
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作者：Zhang, Xi-guang; Pratt, Brian R.
作者单位：Yunnan University; University of Saskatchewan
摘要：Tian et al. (Reports, 8 July 2022, p. 218) claim that Cambrian yunnanozoan animals are stem vertebrates, based partly on their observation at the nanometer scale of microfibrillar tissue located in the branchial arches. They interpret this to represent cellular cartilage with an extracellular matrix of microfibrils. Instead, we argue that the 'microfibrils' are more likely modern organic contamination.
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作者：Cao, Xiangkun Elvis
作者单位：Massachusetts Institute of Technology (MIT)
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作者：Gonzalez-Bailon, Sandra; Lazer, David; Barbera, Pablo; Zhang, Meiqing; Allcott, Hunt; Brown, Taylor; Crespo-Tenorio, Adriana; Freelon, Deen; Gentzkow, Matthew; Guess, Andrew M.; Iyengar, Shanto; Kim, Young Mie; Malhotra, Neil; Moehler, Devra; Nyhan, Brendan; Pan, Jennifer; Rivera, Carlos Velasco; Settle, Jaime; Thorson, Emily; Tromble, Rebekah; Wilkins, Arjun; Wojcieszak, Magdalena; de Jonge, Chad Kiewiet; Franco, Annie; Mason, Winter; Stroud, Natalie Jomini; Tucker, Joshua A.
作者单位：University of Pennsylvania; Northeastern University; Stanford University; Stanford University; Princeton University; Princeton University; Stanford University; University of Wisconsin System; University of Wisconsin Madison; Stanford University; Dartmouth College; Stanford University; Syracuse University; George Washington University; George Washington University; University of California System; University of California Davis; University of Amsterdam; University of Texas System; University of Texas Austin; University of Texas System; University of Texas Austin; New York University; New York University
摘要：Does Facebook enable ideological segregation in political news consumption? We analyzed exposure to news during the US 2020 election using aggregated data for 208 million US Facebook users. We compared the inventory of all political news that users could have seen in their feeds with the information that they saw (after algorithmic curation) and the information with which they engaged. We show that (i) ideological segregation is high and increases as we shift from potential exposure to actual ...
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作者：Ferrari, Samuele; Naldini, Luigi
作者单位：Fondazione Telethon; San Raffaele Telethon Institute For Gene Therapy (Sr-Tiget); Vita-Salute San Raffaele University
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作者：Kupferschmidt, Kai
