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作者:Jiang, Xin; Qin, Shucheng; Meng, Lei; He, Guorui; Zhang, Jinyuan; Wang, Yiyang; Zhu, Yiqiao; Zou, Tianwei; Gong, Yufei; Chen, Zekun; Sun, Guangpei; Liu, Minchao; Li, Xiaojun; Lang, Felix; Li, Yongfang
作者单位:Chinese Academy of Sciences; Institute of Chemistry, CAS; Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS; University of Potsdam; Soochow University - China
摘要:In recent years, perovskite has been widely adopted in series-connected monolithic tandem solar cells (TSCs) to overcome the Shockley-Queisser limit of single-junction solar cells. Perovskite-organic TSCs, comprising a wide-bandgap (WBG) perovskite solar cell (pero-SC) as the front cell and a narrow-bandgap organic solar cell (OSC) as the rear cell, have recently drawn attention owing to the good stability and potential high power conversion efficiency (PCE)1-4. However, WBG pero-SCs usually e...
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作者:Widder, David Gray; Whittaker, Meredith; West, Sarah Myers
作者单位:Cornell University; University of Western Australia
摘要:This paper examines 'open' artificial intelligence (AI). Claims about 'open' AI often lack precision, frequently eliding scrutiny of substantial industry concentration in large-scale AI development and deployment, and often incorrectly applying understandings of 'open' imported from free and open-source software to AI systems. At present, powerful actors are seeking to shape policy using claims that 'open' AI is either beneficial to innovation and democracy, on the one hand, or detrimental to ...
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作者:[Anonymous]
摘要:Microorganisms on a sample of asteroid are clearly terrestrial - despite strict protocols to avoid contamination.
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作者:Todorov, Lauren G.; Oonuma, Kouhei; Kusakabe, Takehiro G.; Levine, Michael S.; Lemaire, Laurence A.
作者单位:Princeton University; Princeton University; Konan University; Konan University; Chubu University; Saint Louis University
摘要:Neural crest cells are multipotent progenitors that produce defining features of vertebrates such as the 'new head'1. Here we use the tunicate, Ciona, to explore the evolutionary origins of neural crest since this invertebrate chordate is among the closest living relatives of vertebrates2-4. Previous studies identified two potential neural crest cell types in Ciona, sensory pigment cells and bipolar tail neurons5,6. Recent findings suggest that bipolar tail neurons are homologous to cranial se...
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作者:Forrester, Nikki
摘要:Astronomer Desire & eacute; Cotto-Figueora detects and characterizes near-Earth asteroids to identify potential hazards.
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作者:Tsybuliak, Natalia; Suchikova, Yana
作者单位:Ministry of Education & Science of Ukraine; Berdyansk State Pedagogical University
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作者:Vadrot, Alice B. M.
作者单位:University of Vienna
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作者:[Anonymous]
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作者:Nordmann, Thierry M.; Anderton, Holly; Hasegawa, Akito; Schweizer, Lisa; Zhang, Peng; Stadler, Pia-Charlotte; Sinha, Ankit; Metousis, Andreas; Rosenberger, Florian A.; Zwiebel, Maximilian; Satoh, Takashi K.; Anzengruber, Florian; Strauss, Maximilian T.; Tanzer, Maria C.; Saito, Yuki; Gong, Ting; Thielert, Marvin; Kimura, Haruna; Silke, Natasha; Rodriguez, Edwin H.; Restivo, Gaetana; Nguyen, Hong Ha; Gross, Annette; Feldmeyer, Laurence; Joerg, Lukas; Levesque, Mitchell P.; Murray, Peter J.; Ingen-Housz-Oro, Saskia; Mund, Andreas; Abe, Riichiro; Silke, John; Ji, Chao; French, Lars E.; Mann, Matthias
作者单位:Max Planck Society; University of Zurich; University Zurich Hospital; University of Munich; University of Melbourne; Niigata University; Fujian Medical University; University of Copenhagen; Max Planck Society; University of Bern; University Hospital of Bern; University of Bern; University Hospital of Bern; Assistance Publique Hopitaux Paris (APHP); Universite Paris-Est-Creteil-Val-de-Marne (UPEC); Hopital Universitaire Henri-Mondor - APHP; Fujian Medical University; University of Miami
摘要:Toxic epidermal necrolysis (TEN) is a fatal drug-induced skin reaction triggered by common medications and is an emerging public health issue1-3. Patients with TEN undergo severe and sudden epidermal detachment caused by keratinocyte cell death. Although molecular mechanisms that drive keratinocyte cell death have been proposed, the main drivers remain unknown, and there is no effective therapy for TEN4-6. Here, to systematically map molecular changes that are associated with TEN and identify ...
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作者:Ge, Zhehao; Graf, Anton M.; Keski-Rahkonen, Joonas; Slizovskiy, Sergey; Polizogopoulos, Peter; Taniguchi, Takashi; Watanabe, Kenji; Van Haren, Ryan; Lederman, David; Fal'ko, Vladimir I.; Heller, Eric J.; Velasco Jr, Jairo
作者单位:University of California System; University of California Santa Cruz; Harvard University; Harvard University; Harvard University; University of Manchester; University of Manchester; National Institute for Materials Science; National Institute for Materials Science; University of California System; University of California Berkeley
摘要:Quantum scars refer to eigenstates with enhanced probability density along unstable classical periodic orbits. First predicted 40 years ago1, scars are special eigenstates that counterintuitively defy ergodicity in quantum systems whose classical counterpart is chaotic2,3. Despite the importance and long history of scars, their direct visualization in quantum systems remains an open field4-10. Here we demonstrate that, by using an in situ graphene quantum dot (GQD) creation and a wavefunction ...