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作者：Kintisch, Eli
摘要：Cold blob from increased meltwater alters key weather patterns, study suggests
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作者：Bjoerk, Jonas; Zhou, Jie; Persson, Per O. a.; Rosen, Johanna
作者单位：Linkoping University; Linkoping University; Linkoping University
摘要：MXenes are a family of two-dimensional (2D) materials typically formed by etching the A element from a parent MAX phase. Computational screening for other 3D precursors suitable for such exfoliation is challenging because of the intricate chemical processes involved. We present a theoretical approach for predicting 2D materials formed through chemical exfoliation under acidic conditions by identifying 3D materials amenable for selective etching. From a dataset of 66,643 3D materials, we identi...
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作者：Li, Hui-quan; Jiang, Wuji; Ling, Li; Pratelli, Marta; Chen, Cong; Gupta, Vaidehi; Godavarthi, Swetha K.; Spitzer, Nicholas C.
作者单位：University of California System; University of California San Diego; University of California System; University of California San Diego; University of California System; University of California San Diego; University of California System; University of California San Diego
摘要：Overgeneralization of fear to harmless situations is a core feature of anxiety disorders resulting from acute stress, yet the mechanisms by which fear becomes generalized are poorly understood. In this study, we show that generalized fear in mice results from a transmitter switch from glutamate to gamma-aminobutyric acid (GABA) in serotonergic neurons of the lateral wings of the dorsal raphe. Similar change in transmitter identity was found in the postmortem brains of individuals with posttrau...
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作者：Thakur, Anupma; Anasori, Babak
作者单位：Purdue University System; Purdue University; Purdue University System; Purdue University; Purdue University in Indianapolis
摘要：A large-scale theory-driven approach predicts many new 2D materials
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作者：Froese, Robert D.; Arriola, Daniel J.; den Doelder, Jaap; Hou, Jianbo; Kashyap, Teresita; Lu, Keran; Martinetti, Luca; Stubbert, Bryan D.
作者单位：Dow Chemical Company; Dow Chemical Company
摘要：In polyolefins, long-chain branching is introduced through an energy-intensive, high-pressure radical process to form low-density polyethylene (LDPE). In the current work, we demonstrated a ladder-like polyethylene architecture through solution polymerization of ethylene and less than 1 mole % of alpha,omega-dienes, using a dual-chain catalyst. The ladder-branching mechanism requires catalysts with two growing polymer chains on the same metal center, thus enchaining the diene without the requi...
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作者：Brainard, Jeffrey
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作者：Brainard, Jeffrey
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作者：Cohen, Jon
摘要：Jeanne Marrazzo, an HIV prevention researcher, sees need for more holistic approach to community health problems
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作者：Brechot, Christian; Bjorndal, Asa Szekely; Ewbank, Jonathan
作者单位：State University System of Florida; University of South Florida; Public Health Agency of Sweden; Institut National de la Sante et de la Recherche Medicale (Inserm)
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作者：Liu, Jiale; Chen, Xiayan; Chen, Kaizhong; Tian, Wenming; Sheng, Yusong; She, Bin; Jiang, Youyu; Zhang, Deyi; Liu, Yang; Qi, Jianhang; Chen, Kai; Ma, Yongmin; Qiu, Zexiong; Wang, Chaoyang; Yin, Yanfeng; Zhao, Shengli; Leng, Jing; Jin, Shengye; Zhao, Wenshan; Qin, Yanyang; Su, Yaqiong; Li, Xiaoyu; Li, Xiaojiang; Zhou, Yang; Zhou, Yinhua; Ling, Furi; Mei, Anyi; Han, Hongwei
作者单位：Huazhong University of Science & Technology; Wuhan Institute of Technology; Chinese Academy of Sciences; Dalian Institute of Chemical Physics, CAS; Xi'an Jiaotong University
摘要：Printable mesoscopic perovskite solar cells (p-MPSCs) do not require the added hole-transport layer needed in traditional p-n junctions but have also exhibited lower power conversion efficiencies of about 19%. We performed device simulation and carrier dynamics analysis to design a p-MPSC with mesoporous layers of semiconducting titanium dioxide, insulating zirconium dioxide, and conducting carbon infiltrated with perovskite that enabled three-dimensional injection of photoexcited electrons in...
