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作者：Glotzer, Sharon C.
作者单位：University of Michigan System; University of Michigan
摘要：In 1984, scientists made a crystalline alloy that had a seemingly impossible arrangement of atoms. They had discovered the first quasicrystal - a type of material that transformed ideas about how atoms can be ordered in solids.
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作者：[Anonymous]
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作者：Wang, Yurui; Lin, Renxing; Liu, Chenshuaiyu; Wang, Xiaoyu; Chosy, Cullen; Haruta, Yuki; Bui, Anh Dinh; Li, Minghui; Sun, Hongfei; Zheng, Xuntian; Luo, Haowen; Wu, Pu; Gao, Han; Sun, Wenjie; Nie, Yuefeng; Zhu, Hesheng; Zhou, Kun; Nguyen, Hieu T.; Luo, Xin; Li, Ludong; Xiao, Chuanxiao; Saidaminov, Makhsud I.; Stranks, Samuel D.; Zhang, Lijun; Tan, Hairen
作者单位：Nanjing University; Jilin University; University of Cambridge; University of Cambridge; University of Victoria; Australian National University; Chinese Academy of Sciences; Ningbo Institute of Materials Technology & Engineering, CAS
摘要：The fabrication of scalable all-perovskite tandem solar cells is considered an attractive route to commercialize perovskite photovoltaic modules1. However, the certified efficiency of 1-cm2-scale all-perovskite tandem solar cells lags behind their small-area (approximately 0.05-cm2) counterparts2,3. This performance deficit originates from inhomogeneity in wide-bandgap (WBG) perovskite solar cells (PSCs) at a large scale. The inhomogeneity is known to be introduced at the bottom interface and ...
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作者：Conlon, Anne Marie
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作者：Gibney, Elizabeth
摘要：PsiQuantum has ambitious goals to build a useful quantum machine by late 2027 - and has raised more than US$1 billion to do it.
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作者：[Anonymous]
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作者：Lu, Yongjie; Qin, Meng; He, Qilong; Hua, Lingyue; Qi, Xintong; Yang, Ming; Guo, Qianying; Liu, Xixi; Zhang, Zhe; Xu, Fanqing; Ding, Ling; Wu, Yixuan; Zhang, Cong; Zhai, Fan; Liu, Qiang; Li, Jiaxin; Yuan, Pengbo; Shi, Xiaoming; Wang, Xueju; Zhao, Cheng; Lian, Ying; Li, Rong; Wei, Yuan; Yan, Liying; Yuan, Peng; Qiao, Jie
作者单位：Peking University; Peking University; Peking University; Peking University
摘要：The dosage of X-linked genes is accurately regulated with the development of fetal germ cells (FGCs)(1,2). How aberrant dosage of X-linked genes impairs FGC development in humans remains poorly understood. FGCs of patients with Klinefelter syndrome (KS), who have an extra X chromosome, provide natural models for addressing this issue(3). Here we demonstrate that most human FGCs in KS are arrested at an early stage, characterized by the upregulation of genes related to pluripotency, the WNT pat...
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作者：Dai, Tianwei; Vijayakrishnan, Sriram; Szczypinski, Filip T.; Ayme, Jean-Francois; Simaei, Ehsan; Fellowes, Thomas; Clowes, Rob; Kotopanov, Lyubomir; Shields, Caitlin E.; Zhou, Zhengxue; Ward, John W.; Cooper, Andrew I.
作者单位：University of Liverpool
摘要：Autonomous laboratories can accelerate discoveries in chemical synthesis, but this requires automated measurements coupled with reliable decision-making1,2. Most autonomous laboratories involve bespoke automated equipment3-6, and reaction outcomes are often assessed using a single, hard-wired characterization technique7. Any decision-making algorithms8 must then operate using this narrow range of characterization data9,10. By contrast, manual experiments tend to draw on a wider range of instru...
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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 ...
