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作者：Phillips, Aaron
作者单位：University of Calgary; Libin Cardiovascular Institute Of Alberta; University of Calgary
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作者：Rattenborg, Niels C.
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作者：[Anonymous]
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作者：Cai, Tiantian; Capello, Rachel Lenoir; Pi, Xiong; Wu, Hao; Chou, James J. J.
作者单位：Harvard University; Harvard Medical School; Harvard University; Harvard University Medical Affiliates; Boston Children's Hospital; Program in Cellular & Molecular Medicine (PCMM); Chinese Academy of Sciences; Hefei Institutes of Physical Science, CAS; Chinese Academy of Sciences; Shanghai Institute of Organic Chemistry, CAS
摘要：Common ? chain (?c) cytokine receptors, including interleukin-2 (IL-2), IL-4, IL-7, IL-9, IL-15, and IL-21 receptors, are activated upon engagement with a common ?c receptor (CD132) by concomitant binding of their ectodomains to an interleukin. In this work, we find that direct interactions between the transmembrane domains (TMDs) of both the ?c and the interleukin receptors (ILRs) are also required for receptor activation. Moreover, the same ?c TMD can specifically recognize multiple ILR TMDs...
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作者：Gregory, Robin; Halteman, Philip; Kaechele, Nicole; Satterfield, Terre
作者单位：University of British Columbia
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作者：Niyogi, Shankho; Ghosh, Abhijit; Kumar, Abhash; Hammack, Richard W. W.
作者单位：University of California System; University of California Riverside; United States Department of Energy (DOE); National Energy Technology Laboratory - USA
摘要：Seismic tremor signals, also known as long-period, long-duration signals, have been reported in several locations where fluid injection for enhanced oil and gas exploration is taking place. However, the origin of these signals remains poorly constrained. We studied seismic tremor signals in Wellington Field, Kansas, using a seismic array during a carbon dioxide injection program. We show that these signals are generated below the surface during the time of carbon dioxide injection. They have a...
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作者：[Anonymous]
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作者：Ribeiro, Caroline; Ruaro, Renata; de Souza, Jana Magaly Tesserolli; Pagioro, Thomaz Aurelio; Varassin, Isabela Galarda; Marques, Marcia Cristina Mendes; Grelle, Carlos Eduardo de Viveiros
作者单位：Universidade Federal do Parana; Universidade Tecnologica Federal do Parana; Universidade Tecnologica Federal do Parana; Universidade Tecnologica Federal do Parana; Universidade Federal do Parana; Universidade Federal do Parana
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作者：Jung, Hoimin; Kweon, Jeonguk; Suh, Jong-Min; Lim, Mi Hee; Kim, Dongwook; Chang, Sukbok
作者单位：Korea Advanced Institute of Science & Technology (KAIST); Institute for Basic Science - Korea (IBS)
摘要：Rhodium (Rh) acylnitrene complexes are widely implicated in catalytic C-H amidation reactions but have eluded isolation and structural characterization. To overcome this challenge, we designed a chromophoric octahedral Rh complex with a bidentate dioxazolone ligand, in which photoinduced metal-to-ligand charge transfer initiates catalytic C-H amidation. X-ray photocrystallographic analysis of the Rh-dioxazolone complex allowed structural elucidation of the targeted Rh-acylnitrenoid and provide...
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作者：Poudel, Dhruba P.; Pokhrel, Amrit; Tak, Raj Kumar; Shankar, Majji; Giri, Ramesh
作者单位：Pennsylvania Commonwealth System of Higher Education (PCSHE); Pennsylvania State University; Pennsylvania State University - University Park
摘要：Cyclopropanes are key features in many preclinical, clinical, and commercial drugs, as well as natural products. The most prolific technique for their synthesis is the metal-catalyzed reaction of an alkene with a diazoalkane, a highly energetic reagent requiring stringent safety precautions. Discovery of alternative innocuous reagents remains an ongoing challenge. Herein, we report a simple photoredox-catalyzed intermolecular cyclopropanation of unactivated alkenes with active methylene compou...
