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  • 1
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    Fault movements and stress accumulation before the 1976 Tangshan earthquake in North China (1981)
    In:  Journ. Structural Geol., Kunming, China, 3-4, vol. 3, no. B5, pp. 393-400, pp. B05301, (ISSN: 1340-4202)
    Details
    Publication Date: 1981
    Keywords: Fault zone ; Earthquake ; Stress ; Earthquake precursor: deformation or strain ; Structural geology ; JSG
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    BIBLIOGRAPHY SEISMOLOGY
  • 2
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    Respiration regulates p53 subcellular localization [Cell Biology] (2013)
    National Academy of Sciences
    Details
    Publication Date: 2013-10-23
    Description: p53, a critical tumor suppressor, regulates mitochondrial respiration, but how a nuclear protein can orchestrate the function of an organelle encoded by two separate genomes, both of which require p53 for their integrity, remains unclear. Here we report that the mammalian homolog of the yeast mitochondrial disulfide relay protein Mia40...
    Print ISSN: 0027-8424
    Electronic ISSN: 1091-6490
    Topics: Biology , Medicine , Natural Sciences in General
    Published by National Academy of Sciences
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  • 3
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    Calcium store sensor stromal-interaction molecule 1-dependent signaling plays an important role in cervical cancer growth, migration, and angiogenesis [Cell Biology] (2011)
    National Academy of Sciences
    Details
    Publication Date: 2011-09-14
    Description: Store-operated Ca2+ entry (SOCE) is the principal Ca2+ entry mechanism in nonexcitable cells. Stromal-interaction molecule 1 (STIM1) is an endoplasmic reticulum Ca2+ sensor that triggers SOCE activation. However, the role of STIM1 in regulating cancer progression remains controversial and its clinical relevance is unclear. Here we show that STIM1-dependent signaling is important for cervical cancer cell proliferation, migration, and angiogenesis. STIM1 overexpression in tumor tissue is noted in 71% cases of early-stage cervical cancer. In tumor tissues, the level of STIM1 expression is significantly associated with the risk of metastasis and survival. EGF-stimulated cancer cell migration requires STIM1 expression and EGF increases the interaction between STIM1 and Orai1 in juxta-membrane areas, and thus induces Ca2+ influx. STIM1 involves the activation of Ca2+-regulated protease calpain, as well as Ca2+-regulated cytoplasmic kinase Pyk2, which regulate the focal-adhesion dynamics of migratory cervical cancer cells. Because of an increase of p21 protein levels and a decrease of Cdc25C protein levels, STIM1-silencing in cervical cancer cells significantly inhibits cell proliferation by arresting the cell cycle at the S and G2/M phases. STIM1 also regulates the production of VEGF in cervical cancer cells. Interference with STIM1 expression or blockade of SOCE activity inhibits tumor angiogenesis and growth in animal models, confirming the crucial role of STIM1-mediated Ca2+ influx in aggravating tumor development in vivo. These results make STIM1-dependent signaling an attractive target for therapeutic intervention.
    Print ISSN: 0027-8424
    Electronic ISSN: 1091-6490
    Topics: Biology , Medicine , Natural Sciences in General
    Published by National Academy of Sciences
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  • 4
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    An oestrogen-receptor-alpha-bound human chromatin interactome (2009)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2009-11-06
    Description: Genomes are organized into high-level three-dimensional structures, and DNA elements separated by long genomic distances can in principle interact functionally. Many transcription factors bind to regulatory DNA elements distant from gene promoters. Although distal binding sites have been shown to regulate transcription by long-range chromatin interactions at a few loci, chromatin interactions and their impact on transcription regulation have not been investigated in a genome-wide manner. Here we describe the development of a new strategy, chromatin interaction analysis by paired-end tag sequencing (ChIA-PET) for the de novo detection of global chromatin interactions, with which we have comprehensively mapped the chromatin interaction network bound by oestrogen receptor alpha (ER-alpha) in the human genome. We found that most high-confidence remote ER-alpha-binding sites are anchored at gene promoters through long-range chromatin interactions, suggesting that ER-alpha functions by extensive chromatin looping to bring genes together for coordinated transcriptional regulation. We propose that chromatin interactions constitute a primary mechanism for regulating transcription in mammalian genomes.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2774924/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2774924/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fullwood, Melissa J -- Liu, Mei Hui -- Pan, You Fu -- Liu, Jun -- Xu, Han -- Mohamed, Yusoff Bin -- Orlov, Yuriy L -- Velkov, Stoyan -- Ho, Andrea -- Mei, Poh Huay -- Chew, Elaine G Y -- Huang, Phillips Yao Hui -- Welboren, Willem-Jan -- Han, Yuyuan -- Ooi, Hong Sain -- Ariyaratne, Pramila N -- Vega, Vinsensius B -- Luo, Yanquan -- Tan, Peck Yean -- Choy, Pei Ye -- Wansa, K D Senali Abayratna -- Zhao, Bing -- Lim, Kar Sian -- Leow, Shi Chi -- Yow, Jit Sin -- Joseph, Roy -- Li, Haixia -- Desai, Kartiki V -- Thomsen, Jane S -- Lee, Yew Kok -- Karuturi, R Krishna Murthy -- Herve, Thoreau -- Bourque, Guillaume -- Stunnenberg, Hendrik G -- Ruan, Xiaoan -- Cacheux-Rataboul, Valere -- Sung, Wing-Kin -- Liu, Edison T -- Wei, Chia-Lin -- Cheung, Edwin -- Ruan, Yijun -- 1U54HG004557-01/HG/NHGRI NIH HHS/ -- R01 HG004456/HG/NHGRI NIH HHS/ -- R01 HG004456-01/HG/NHGRI NIH HHS/ -- R01 HG004456-02/HG/NHGRI NIH HHS/ -- R01 HG004456-03/HG/NHGRI NIH HHS/ -- R01HG003521-01/HG/NHGRI NIH HHS/ -- R01HG004456-01/HG/NHGRI NIH HHS/ -- U54 HG004557/HG/NHGRI NIH HHS/ -- U54 HG004557-01/HG/NHGRI NIH HHS/ -- U54 HG004557-02/HG/NHGRI NIH HHS/ -- U54 HG004557-03/HG/NHGRI NIH HHS/ -- U54 HG004557-04/HG/NHGRI NIH HHS/ -- England -- Nature. 2009 Nov 5;462(7269):58-64. doi: 10.1038/nature08497.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Genome Institute of Singapore, Agency for Science, Technology and Research, Singapore 138672.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19890323" target="_blank"〉PubMed〈/a〉
    Keywords: Binding Sites ; Cell Line ; Chromatin/*genetics/*metabolism ; Chromatin Immunoprecipitation ; Cross-Linking Reagents ; Estrogen Receptor alpha/*metabolism ; Formaldehyde ; Genome, Human/*genetics ; Humans ; Promoter Regions, Genetic/genetics ; Protein Binding ; Reproducibility of Results ; Sequence Analysis, DNA ; Transcription, Genetic ; Transcriptional Activation
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Nature Publishing Group (NPG)
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  • 5
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    Tailoring electrical transport across grain boundaries in polycrystalline graphene (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-06-02
    Description: Graphene produced by chemical vapor deposition (CVD) is polycrystalline, and scattering of charge carriers at grain boundaries (GBs) could degrade its performance relative to exfoliated, single-crystal graphene. However, the electrical properties of GBs have so far been addressed indirectly without simultaneous knowledge of their locations and structures. We present electrical measurements on individual GBs in CVD graphene first imaged by transmission electron microscopy. Unexpectedly, the electrical conductance improves by one order of magnitude for GBs with better interdomain connectivity. Our study suggests that polycrystalline graphene with good stitching may allow for uniformly high electrical performance rivaling that of exfoliated samples, which we demonstrate using optimized growth conditions and device geometry.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tsen, Adam W -- Brown, Lola -- Levendorf, Mark P -- Ghahari, Fereshte -- Huang, Pinshane Y -- Havener, Robin W -- Ruiz-Vargas, Carlos S -- Muller, David A -- Kim, Philip -- Park, Jiwoong -- New York, N.Y. -- Science. 2012 Jun 1;336(6085):1143-6. doi: 10.1126/science.1218948.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Applied Physics, Cornell University, Ithaca, NY 14853, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22654054" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 6
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    One-dimensional electrical contact to a two-dimensional material (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-11-02
    Description: Heterostructures based on layering of two-dimensional (2D) materials such as graphene and hexagonal boron nitride represent a new class of electronic devices. Realizing this potential, however, depends critically on the ability to make high-quality electrical contact. Here, we report a contact geometry in which we metalize only the 1D edge of a 2D graphene layer. In addition to outperforming conventional surface contacts, the edge-contact geometry allows a complete separation of the layer assembly and contact metallization processes. In graphene heterostructures, this enables high electronic performance, including low-temperature ballistic transport over distances longer than 15 micrometers, and room-temperature mobility comparable to the theoretical phonon-scattering limit. The edge-contact geometry provides new design possibilities for multilayered structures of complimentary 2D materials.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wang, L -- Meric, I -- Huang, P Y -- Gao, Q -- Gao, Y -- Tran, H -- Taniguchi, T -- Watanabe, K -- Campos, L M -- Muller, D A -- Guo, J -- Kim, P -- Hone, J -- Shepard, K L -- Dean, C R -- New York, N.Y. -- Science. 2013 Nov 1;342(6158):614-7. doi: 10.1126/science.1244358.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Electrical Engineering, Columbia University, New York, NY 10027, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24179223" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 7
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    Grains and grain boundaries in single-layer graphene atomic patchwork quilts (2011)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2011-01-07
    Description: The properties of polycrystalline materials are often dominated by the size of their grains and by the atomic structure of their grain boundaries. These effects should be especially pronounced in two-dimensional materials, where even a line defect can divide and disrupt a crystal. These issues take on practical significance in graphene, which is a hexagonal, two-dimensional crystal of carbon atoms. Single-atom-thick graphene sheets can now be produced by chemical vapour deposition on scales of up to metres, making their polycrystallinity almost unavoidable. Theoretically, graphene grain boundaries are predicted to have distinct electronic, magnetic, chemical and mechanical properties that strongly depend on their atomic arrangement. Yet because of the five-order-of-magnitude size difference between grains and the atoms at grain boundaries, few experiments have fully explored the graphene grain structure. Here we use a combination of old and new transmission electron microscopy techniques to bridge these length scales. Using atomic-resolution imaging, we determine the location and identity of every atom at a grain boundary and find that different grains stitch together predominantly through pentagon-heptagon pairs. Rather than individually imaging the several billion atoms in each grain, we use diffraction-filtered imaging to rapidly map the location, orientation and shape of several hundred grains and boundaries, where only a handful have been previously reported. The resulting images reveal an unexpectedly small and intricate patchwork of grains connected by tilt boundaries. By correlating grain imaging with scanning probe and transport measurements, we show that these grain boundaries severely weaken the mechanical strength of graphene membranes but do not as drastically alter their electrical properties. These techniques open a new window for studies on the structure, properties and control of grains and grain boundaries in graphene and other two-dimensional materials.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Huang, Pinshane Y -- Ruiz-Vargas, Carlos S -- van der Zande, Arend M -- Whitney, William S -- Levendorf, Mark P -- Kevek, Joshua W -- Garg, Shivank -- Alden, Jonathan S -- Hustedt, Caleb J -- Zhu, Ye -- Park, Jiwoong -- McEuen, Paul L -- Muller, David A -- England -- Nature. 2011 Jan 20;469(7330):389-92. doi: 10.1038/nature09718. Epub 2011 Jan 5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉School of Applied and Engineering Physics, Cornell University, Ithaca, New York 14853, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21209615" target="_blank"〉PubMed〈/a〉
    Keywords: Copper ; Graphite/*chemistry ; Microscopy, Atomic Force ; Microscopy, Electron, Scanning Transmission ; Microscopy, Electron, Transmission ; Particle Size
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Nature Publishing Group (NPG)
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  • 8
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    Graphene and boron nitride lateral heterostructures for atomically thin circuitry (2012)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2012-08-31
    Description: Precise spatial control over the electrical properties of thin films is the key capability enabling the production of modern integrated circuitry. Although recent advances in chemical vapour deposition methods have enabled the large-scale production of both intrinsic and doped graphene, as well as hexagonal boron nitride (h-BN), controlled fabrication of lateral heterostructures in these truly atomically thin systems has not been achieved. Graphene/h-BN interfaces are of particular interest, because it is known that areas of different atomic compositions may coexist within continuous atomically thin films and that, with proper control, the bandgap and magnetic properties can be precisely engineered. However, previously reported approaches for controlling these interfaces have fundamental limitations and cannot be easily integrated with conventional lithography. Here we report a versatile and scalable process, which we call 'patterned regrowth', that allows for the spatially controlled synthesis of lateral junctions between electrically conductive graphene and insulating h-BN, as well as between intrinsic and substitutionally doped graphene. We demonstrate that the resulting films form mechanically continuous sheets across these heterojunctions. Conductance measurements confirm laterally insulating behaviour for h-BN regions, while the electrical behaviour of both doped and undoped graphene sheets maintain excellent properties, with low sheet resistances and high carrier mobilities. Our results represent an important step towards developing atomically thin integrated circuitry and enable the fabrication of electrically isolated active and passive elements embedded in continuous, one-atom-thick sheets, which could be manipulated and stacked to form complex devices at the ultimate thickness limit.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Levendorf, Mark P -- Kim, Cheol-Joo -- Brown, Lola -- Huang, Pinshane Y -- Havener, Robin W -- Muller, David A -- Park, Jiwoong -- England -- Nature. 2012 Aug 30;488(7413):627-32. doi: 10.1038/nature11408.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22932386" target="_blank"〉PubMed〈/a〉
    Keywords: Ammonia/chemistry ; Boranes/chemistry ; Boron Compounds/*chemistry ; Electric Conductivity ; Electrodes ; Electronics/*instrumentation ; Graphite/*chemistry ; Microscopy, Atomic Force ; Microscopy, Electron, Scanning ; Microscopy, Electron, Transmission ; Temperature ; Transistors, Electronic
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Nature Publishing Group (NPG)
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  • 9
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    Imaging atomic rearrangements in two-dimensional silica glass: watching silica's dance (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-10-12
    Description: Structural rearrangements control a wide range of behavior in amorphous materials, and visualizing these atomic-scale rearrangements is critical for developing and refining models for how glasses bend, break, and melt. It is difficult, however, to directly image atomic motion in disordered solids. We demonstrate that using aberration-corrected transmission electron microscopy, we can excite and image atomic rearrangements in a two-dimensional silica glass-revealing a complex dance of elastic and plastic deformations, phase transitions, and their interplay. We identified the strain associated with individual ring rearrangements, observed the role of vacancies in shear deformation, and quantified fluctuations at a glass/liquid interface. These examples illustrate the wide-ranging and fundamental materials physics that can now be studied at atomic-resolution via transmission electron microscopy of two-dimensional glasses.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Huang, Pinshane Y -- Kurasch, Simon -- Alden, Jonathan S -- Shekhawat, Ashivni -- Alemi, Alexander A -- McEuen, Paul L -- Sethna, James P -- Kaiser, Ute -- Muller, David A -- New York, N.Y. -- Science. 2013 Oct 11;342(6155):224-7. doi: 10.1126/science.1242248.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉School of Applied and Engineering Physics, Cornell University, Ithaca, NY 14853, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24115436" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 10
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    New Molecular Design Concurrently Providing Superior Pure Blue, Thermally Activated Delayed Fluorescence and Optical Out-Coupling Efficiencies (2017)
    American Chemical Society (ACS)
    Details
    Publication Date: 2017-08-04
    Description: Journal of the American Chemical Society DOI: 10.1021/jacs.7b03848
    Print ISSN: 0002-7863
    Electronic ISSN: 1520-5126
    Topics: Chemistry and Pharmacology
    Published by American Chemical Society (ACS)
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