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  • 1
    Publication Date: 2017-11-30
    Description: In this paper, the curing kinetics of 4,4′-Methylenebis epoxy resin(TGDDM) and m-Xylylenediamine(m-XDA) was investigated by non-isothermal differential scanning calorimetry(DSC) at various heating rates. Selected non-isothermal methods for analyzing curing kinetics were compared. The activation energy(E) and the correlation coefficient(R) were obtained by different isoconversional methods. The reaction order(n) was obtained by the activation energy in different isoconversional methods for the by Crane equation. The results show that the apparent activation energy are 65.23kJ/mol, 52.20 kJ/mol and 66.10 kJ/mol by using the method of Kissinger, Friedman and F-W-O, the reaction order are 0.911, 0.729 and 0.923 by using the method of Kissinger, Friedman and F-W-O.
    Print ISSN: 1757-8981
    Electronic ISSN: 1757-899X
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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  • 2
    Publication Date: 2011-05-20
    Description: In this work, hexagonal solid solutions of (Gd 0.95 Eu 0.05 )(OH) 3 with two distinctive morphologies of nanorods and nanotubes were successfully synthesized via hydrothermal treatment of mixed nitrate solutions in the presence of ammonium hydroxide. The hydroxide samples exhibited characteristic Eu 3+ photoluminescence through the energy transfer from Gd 3+ to Eu 3+ and the self-excitation of Eu 3+ . The hydroxide precursors transformed into cubic (Gd 0.95 Eu 0.05 ) 2 O 3 at ~500 °C via an intermediate monoclinic (Gd 0.95 Eu 0.05 )OOH phase, and the Eu 3+ coordination accordingly experienced symmetry changes from D 3 h to C 2 v , and then to C 2 / S 6 . The cubic (Gd 0.95 Eu 0.05 ) 2 O 3 well retained the original morphologies of their p...
    Print ISSN: 1757-8981
    Electronic ISSN: 1757-899X
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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  • 3
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    In:  Geophys. J. Int., Amsterdam, 4, vol. 105, no. 1-2, pp. 649-657, pp. 1334, (ISSN: 1340-4202)
    Publication Date: 1991
    Keywords: Velocity analysis ; Amplitude ; earth mantle ; Inhomogeneity ; Body waves ; P-waves ; Shear waves ; (The Earth's free) oscillations ; GJI
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  • 4
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    Il Cigno Galileo Galilei
    In:  Professional Paper, Open-File Rept., Earthquake Prediction, Roma, Il Cigno Galileo Galilei, vol. 1, no. 2, pp. 317-332, (ISBN 0080419208)
    Publication Date: 1992
    Keywords: Earthquake precursor: prediction research ; Earthquake precursor: deformation or strain ; Earth tides ; Earthquake precursor: tilt ; JZSCHAU
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  • 5
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    In:  Geophys. Res. Lett., Köln, Elsevier, vol. 13, no. 4, pp. 1549-1552, pp. 1015, (ISSN: 1340-4202)
    Publication Date: 1986
    Keywords: Anisotropy ; Seismology ; (The Earth's free) oscillations ; Earth model, also for more shallow analyses ! ; Tomography ; Inversion ; GRL
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  • 6
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    In:  Nature, Bonn, Inst. f. Theoret. Geodäsie, vol. 325, no. 3-5, pp. 405-409, pp. 1056, (ISBN: 0534351875, 2nd edition)
    Publication Date: 1987
    Keywords: Three dimensional ; (The Earth's free) oscillations ; Spectrum ; Seismology ; NOModelling
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  • 7
    Publication Date: 2016-05-28
    Description: Author(s): Meng Wang, M. Yi, H. L. Sun, P. Valdivia, M. G. Kim, Z. J. Xu, T. Berlijn, A. D. Christianson, Songxue Chi, M. Hashimoto, D. H. Lu, X. D. Li, E. Bourret-Courchesne, Pengcheng Dai, D. H. Lee, T. A. Maier, and R. J. Birgeneau We report a combined study of the spin resonances and superconducting gaps for underdoped ( T c = 19 K), optimally doped ( T c = 25 K), and overdoped ( T c = 19 K) Ba ( Fe 1 − x Co x ) 2 As 2 single crystals with inelastic neutron scattering and angle resolved photoemission spectroscopy. We find a quasi-two-dimensional sp… [Phys. Rev. B 93, 205149] Published Thu May 26, 2016
    Keywords: Electronic structure and strongly correlated systems
    Print ISSN: 1098-0121
    Electronic ISSN: 1095-3795
    Topics: Physics
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  • 8
    Publication Date: 2017-01-10
    Description: Trimethylation of histone H3K36 is a chromatin mark associated with active gene expression, which has been implicated in coupling transcription with mRNA splicing and DNA damage response. SETD2 is a major H3K36 trimethyltransferase, which has been implicated as a tumor suppressor in mammals. Here, we report the regulation of SETD2 protein stability by the proteasome system, and the identification of SPOP, a key subunit of the CUL3 ubiquitin E3 ligase complex, as a SETD2-interacting protein. We demonstrate that SPOP is critically involved in SETD2 stability control and that the SPOP/CUL3 complex is responsible for SETD2 polyubiquitination both in vivo and in vitro . ChIP-Seq analysis and biochemical experiments demonstrate that modulation of SPOP expression confers differential H3K36me3 on SETD2 target genes, and induce H3K36me3-coupled alternative splicing events. Together, these findings establish a functional connection between oncogenic SPOP and tumor suppressive SETD2 in the dynamic regulation of gene expression on chromatin.
    Print ISSN: 0305-1048
    Electronic ISSN: 1362-4962
    Topics: Biology
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  • 9
    Publication Date: 2014-09-27
    Description: X-ray photoelectron spectroscopy (XPS) was utilized to measure the valence band offset (Δ E V ) of the TiZnSnO (TZTO)/Si heterojunction. TZTO films were deposited on Si (100) substrates using magnetron sputtering at room temperature. By using the Zn 2 p 3/2 and Sn 3 d 5/2 energy levels as references, the value of Δ E V was calculated to be 2.69 ± 0.1 eV. Combining with the experimental optical energy band gap of 3.98 eV for TZTO extracted from the UV-vis transmittance spectrum, the conduction band offset (Δ E C ) was deduced to be 0.17 ± 0.1 eV at the interface. Hence, the energy band alignment of the heterojunction was determined accurately, showing a type-I form. This will be beneficial for the design and application of TZTO/Si hybrid devices.
    Print ISSN: 0021-8979
    Electronic ISSN: 1089-7550
    Topics: Physics
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  • 10
    Publication Date: 2014-08-15
    Description: Neurotransmitter-gated ion channels of the Cys-loop receptor family mediate fast neurotransmission throughout the nervous system. The molecular processes of neurotransmitter binding, subsequent opening of the ion channel and ion permeation remain poorly understood. Here we present the X-ray structure of a mammalian Cys-loop receptor, the mouse serotonin 5-HT3 receptor, at 3.5 A resolution. The structure of the proteolysed receptor, made up of two fragments and comprising part of the intracellular domain, was determined in complex with stabilizing nanobodies. The extracellular domain reveals the detailed anatomy of the neurotransmitter binding site capped by a nanobody. The membrane domain delimits an aqueous pore with a 4.6 A constriction. In the intracellular domain, a bundle of five intracellular helices creates a closed vestibule where lateral portals are obstructed by loops. This 5-HT3 receptor structure, revealing part of the intracellular domain, expands the structural basis for understanding the operating mechanism of mammalian Cys-loop receptors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hassaine, Gherici -- Deluz, Cedric -- Grasso, Luigino -- Wyss, Romain -- Tol, Menno B -- Hovius, Ruud -- Graff, Alexandra -- Stahlberg, Henning -- Tomizaki, Takashi -- Desmyter, Aline -- Moreau, Christophe -- Li, Xiao-Dan -- Poitevin, Frederic -- Vogel, Horst -- Nury, Hugues -- England -- Nature. 2014 Aug 21;512(7514):276-81. doi: 10.1038/nature13552. Epub 2014 Aug 3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉1] Laboratory of Physical Chemistry of Polymers and Membranes, Ecole Polytechnique Federale de Lausanne, CH-1015 Lausanne, Switzerland [2] [3] Theranyx, 163 Avenue de Luminy, 13288 Marseille, France. ; 1] Laboratory of Physical Chemistry of Polymers and Membranes, Ecole Polytechnique Federale de Lausanne, CH-1015 Lausanne, Switzerland [2]. ; Laboratory of Physical Chemistry of Polymers and Membranes, Ecole Polytechnique Federale de Lausanne, CH-1015 Lausanne, Switzerland. ; Center for Cellular Imaging and NanoAnalytics, Biozentrum, University of Basel, CH-4058 Basel, Switzerland. ; Swiss Light Source, Paul Scherrer Institute, CH-5234 Villigen, Switzerland. ; Architecture et Fonction des Macromolecules Biologiques, CNRS UMR 7257 and Universite Aix-Marseille, F-13288 Marseille, France. ; 1] Universite Grenoble Alpes, IBS, F-38000 Grenoble, France [2] CNRS, IBS, F-38000 Grenoble, France [3] CEA, DSV, IBS, F-38000 Grenoble, France. ; Laboratory of Biomolecular Research, Paul Scherrer Institute, CH-5232 Villigen, Switzerland. ; Unite de Dynamique Structurale des Macromolecules, Institut Pasteur, CNRS UMR3528, F-75015 Paris, France. ; 1] Laboratory of Physical Chemistry of Polymers and Membranes, Ecole Polytechnique Federale de Lausanne, CH-1015 Lausanne, Switzerland [2] Universite Grenoble Alpes, IBS, F-38000 Grenoble, France [3] CNRS, IBS, F-38000 Grenoble, France [4] CEA, DSV, IBS, F-38000 Grenoble, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25119048" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Binding Sites ; Crystallography, X-Ray ; Mice ; Models, Molecular ; Molecular Sequence Data ; Neurotransmitter Agents/metabolism ; Protein Structure, Quaternary ; Protein Structure, Tertiary ; Protein Subunits/chemistry/metabolism ; Receptors, Serotonin, 5-HT3/*chemistry/metabolism
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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