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作者:Cooks, R. Graham; Holden, Dylan T.
作者单位:Purdue University System; Purdue University
摘要:Charged microdroplets accelerate mineral disintegration
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作者:Baribi-Bartov, Sahar; Swire-Thompson, Briony; Grinberg, Nir
作者单位:Ben-Gurion University of the Negev; Northeastern University; Harvard University
摘要:Governments may have the capacity to flood social media with fake news, but little is known about the use of flooding by ordinary voters. In this work, we identify 2107 registered US voters who account for 80% of the fake news shared on Twitter during the 2020 US presidential election by an entire panel of 664,391 voters. We found that supersharers were important members of the network, reaching a sizable 5.2% of registered voters on the platform. Supersharers had a significant overrepresentat...
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作者:Shao, Wenhao; Kim, Jeong Hui; Simon, Jeffrey; Nian, Zhichen; Baek, Sung-Doo; Lu, Yuan; Fruhling, Colton B.; Yang, Hanjun; Wang, Kang; Park, Jee Yung; Huang, Libai; Yu, Yi; Boltasseva, Alexandra; Savoie, Brett M.; Shalaev, Vladimir M.; Dou, Letian
作者单位:Purdue University System; Purdue University; Purdue University System; Purdue University; ShanghaiTech University; ShanghaiTech University; Purdue University System; Purdue University; Chinese Academy of Sciences; Institute of Chemistry, CAS; Purdue University System; Purdue University
摘要:Layered metal-halide perovskites, or two-dimensional perovskites, can be synthesized in solution, and their optical and electronic properties can be tuned by changing their composition. We report a molecular templating method that restricted crystal growth along all crystallographic directions except for [110] and promoted one-dimensional growth. Our approach is widely applicable to synthesize a range of high-quality layered perovskite nanowires with large aspect ratios and tunable organic-ino...
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作者:van der Linden, Sander; Kyrychenko, Yara
作者单位:University of Cambridge
摘要:Misinformation is viewed as a threat to science, public health, and democracies worldwide ( 1 ). Experts define misinformation as content that is false or misleading, such that it contains some facts but is otherwise manipulative ( 2 , 3 ). Yet, the importance of this distinction has remained unquantified. On pages 978 and 979 of this issue, Allen et al. ( 4 ) and Baribi-Bartov et al. ( 5 ), respectively, report on the impact of misinformation on social media. Allen et al. find that Facebook c...
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作者:Brainard, Jeffrey
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作者:Carraro-Haddad, I.; Chafatinos, D. L.; Kuznetsov, A. S.; Papuccio-Fernandez, I. A.; Reynoso, A. A.; Bruchhausen, A.; Biermann, K.; Santos, P. V.; Usaj, G.; Fainstein, A.
作者单位:Comision Nacional de Energia Atomica (CNEA); Centro Atomico Bariloche; Comision Nacional de Energia Atomica (CNEA); University Nacional Cuyo Mendoza; Instituto Balseiro; Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET); Leibniz Association; Paul Drude Institute for Solid State Electronics; University of Antwerp; Universite Libre de Bruxelles
摘要:Time crystals (TCs) are many-body systems that display spontaneous breaking of time translation symmetry. We demonstrate a TC by using driven-dissipative condensates of microcavity exciton-polaritons, spontaneously formed from an incoherent particle bath. The TC phases are controlled by the power of a continuous-wave nonresonant optical drive exciting the condensate and the interaction with cavity phonons. Those phases are, for increasing power, Larmor-like precession of the condensate pseudo-...
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作者:Czerski, Helen
作者单位:University of London; University College London
摘要:A journalist probes the challenges facing the global commons
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作者:Houlahan, Kathleen E.; Khan, Aziz; Greenwald, Noah F.; Vivas, Cristina Sotomayor; West, Robert B.; Angelo, Michael; Curtis, Christina
作者单位:Stanford University; Stanford Cancer Institute; Stanford University; Stanford University; Stanford University; Stanford University; Stanford University; Chan Zuckerberg Initiative (CZI)
摘要:Tumors with the same diagnosis can have different molecular profiles and response to treatment. It remains unclear when and why these differences arise. Somatic genomic aberrations occur within the context of a highly variable germline genome. Interrogating 5870 breast cancer lesions, we demonstrated that germline-derived epitopes in recurrently amplified genes influence somatic evolution by mediating immunoediting. Individuals with a high germline-epitope burden in human epidermal growth fact...
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作者:Langmore, N. E.; Grealy, A.; Noh, H. -j.; Medina, I.; Skeels, A.; Grant, J.; Murray, K. D.; Kilner, R. M.; Holleley, C. E.
作者单位:Australian National University; Commonwealth Scientific & Industrial Research Organisation (CSIRO); University of Melbourne; University of Cambridge
摘要:Coevolution between interacting species is thought to increase biodiversity, but evidence linking microevolutionary processes to macroevolutionary patterns is scarce. We leveraged two decades of behavioral research coupled with historical DNA analysis to reveal that coevolution with hosts underpins speciation in brood-parasitic bronze-cuckoos. At a macroevolutionary scale, we show that highly virulent brood-parasitic taxa have higher speciation rates and are more likely to speciate in sympatry...
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作者:Liu, Zhi; Hu, Xiaonan; Bo, Renheng; Yang, Youzhou; Cheng, Xu; Pang, Wenbo; Liu, Qing; Wang, Yuejiao; Wang, Shuheng; Xu, Shiwei; Shen, Zhangming; Zhang, Yihui
作者单位:Tsinghua University; Tsinghua University; National University of Singapore; National University of Singapore
摘要:Human skin sensing of mechanical stimuli originates from transduction of mechanoreceptors that converts external forces into electrical signals. Although imitating the spatial distribution of those mechanoreceptors can enable developments of electronic skins capable of decoupled sensing of normal/shear forces and strains, it remains elusive. We report a three-dimensionally (3D) architected electronic skin (denoted as 3DAE-Skin) with force and strain sensing components arranged in a 3D layout t...