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  • 1
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    Recent crustal movements observed with the European Very Long Baseline Interferometry network: geodetic analysis and results (2003)
    In:  J. Geodynamics, Warszawa, Eötvös Lorand Geophysical Institute of Hungaria, vol. 35, no. 4-5, pp. 391-414, pp. L24306, (ISBN: 0534351875, 2nd edition)
    Details
    Publication Date: 2003
    Keywords: Crustal deformation (cf. Earthquake precursor: deformation or strain) ; Geodesy ; space ; JGD
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    BIBLIOGRAPHY SEISMOLOGY
  • 2
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    Expectation-Maximization of the Potential of Mean Force and Diffusion Coefficient in Langevin Dynamics from Single Molecule FRET Data Photon by Photon (2013)
    American Chemical Society (ACS)
    Details
    Publication Date: 2013-09-21
    Description: The Journal of Physical Chemistry B DOI: 10.1021/jp405983d
    Electronic ISSN: 1520-5207
    Topics: Chemistry and Pharmacology , Physics
    Published by American Chemical Society (ACS)
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  • 3
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    The Potential for Unifying Global‐Scale Satellite Measurements of Ground Displacements Using Radio Telescopes (2019)
    Wiley
    Details
    Publication Date: 2019
    Description: Abstract The expansion of globally consistent satellite‐radar imagery presents new opportunities to measure Earth‐surface displacements on intercontinental scales. Yet global applications, including a complete assessment of the land contribution to relative sea‐level rise, first demand new solutions to unify relative satellite‐radar observations in a geocentric reference frame. The international network of Very Long Baseline Interferometry telescopes provides an existing, yet unexploited, link to unify satellite‐radar measurements on a global scale. Proof‐of‐concept experiments reveal the suitability of these instruments as high‐amplitude reflectors for satellite radar and thus provide direct connections to a globally consistent reference frame. Automated tracking of radar satellites is easily integrated into telescope operations alongside ongoing schedules for geodesy and astrometry. Utilizing existing telescopes in this way completely avoids the need for additional geodetic infrastructure or ground surveys and is ready to implement immediately across the telescope network as a first step toward using satellite radar on a global scale.
    Print ISSN: 0094-8276
    Electronic ISSN: 1944-8007
    Topics: Geosciences , Physics
    Published by Wiley on behalf of American Geophysical Union (AGU).
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  • 4
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    Correlated gravitational wave and neutrino signals from general-relativistic rapidly rotating iron core collapse (2012)
    American Physical Society (APS)
    Details
    Publication Date: 2012-07-14
    Description: Author(s): C. D. Ott, E. Abdikamalov, E. O’Connor, C. Reisswig, R. Haas, P. Kalmus, S. Drasco, A. Burrows, and E. Schnetter We present results from a new set of three-dimensional general-relativistic hydrodynamic simulations of rotating iron core collapse. We assume octant symmetry and focus on axisymmetric collapse, bounce, the early postbounce evolution, and the associated gravitational wave (GW) and neutrino signals. ... [Phys. Rev. D 86, 024026] Published Fri Jul 13, 2012
    Keywords: General relativity, gravitation
    Print ISSN: 0556-2821
    Electronic ISSN: 1089-4918
    Topics: Physics
    Published by American Physical Society (APS)
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  • 5
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    Formation and Coalescence of Cosmological Supermassive-Black-Hole Binaries in Supermassive-Star Collapse (2013)
    American Physical Society (APS)
    Details
    Publication Date: 2013-10-08
    Description: Author(s): C. Reisswig, C. D. Ott, E. Abdikamalov, R. Haas, P. Mösta, and E. Schnetter We study the collapse of rapidly rotating supermassive stars that may have formed in the early Universe. By self-consistently simulating the dynamics from the onset of collapse using three-dimensional general-relativistic hydrodynamics with fully dynamical spacetime evolution, we show that seed pert... [Phys. Rev. Lett. 111, 151101] Published Mon Oct 07, 2013
    Keywords: Gravitation and Astrophysics
    Print ISSN: 0031-9007
    Electronic ISSN: 1079-7114
    Topics: Physics
    Published by American Physical Society (APS)
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  • 6
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    Three months of local sea level derived from reflected GNSS signals (2011)
    Wiley
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    Publication Date: 2011-11-08
    Description: By receiving Global Navigation Satellite System (GNSS) signals that are reflected off the sea surface, together with directly received GNSS signals (using standard geodetic-type receivers), it is possible to monitor the sea level using regular single difference geodetic processing. We show results from our analysis of three months of data from the GNSS-based tide gauge at the Onsala Space Observatory (OSO) on the west coast of Sweden. The GNSS-derived time series of local sea level is compared with independent data from two stilling well gauges at Ringhals and Gothenburg about 18 km south and 33 km north of OSO, respectively. A high degree of agreement is found in the time domain, with correlation coefficients of up to 0.96. The root-mean-square differences between the GNSS-derived sea level and the stilling well gauge observations are 5.9 cm and 5.5 cm, which is lower than for the stilling well gauges together (6.1 cm). A frequency domain comparison reveals high coherence of the data sets up to 6 cycles per day, which corresponds well to the propagation of gravity waves in the shallow waters at the Kattegat coast. Amplitudes and phases of some major tides were determined by a tidal harmonic analysis and compared to model predictions. From the GNSS-based tide gauge results we find significant ocean tidal signals at fortnightly, diurnal, semi-diurnal, and quarter-diurnal periods. As an example, the amplitudes of the semi-diurnal M2 and the diurnal O1 tide are determined with 1σ uncertainties of 11 mm and 12 mm, respectively. The comparison to model calculations shows that global ocean tide models have limited accuracy in the Kattegat area.
    Print ISSN: 0048-6604
    Electronic ISSN: 1944-799X
    Topics: Geosciences , Physics
    Published by Wiley on behalf of American Geophysical Union (AGU).
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  • 7
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    GLONASS-R: GNSS reflectometry with an FDMA based satellite navigation system (2014)
    Wiley
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    Publication Date: 2014-03-23
    Description: The information from reflected Global Navigation Satellite System (GNSS) signals can become a valuable data source, from which geophysical properties can be deduced. This approach, called GNSS-Reflectometry (GNSS-R), can be used to develop instruments that act like an altimeter when arrival times of direct and reflected signals are compared. Current GNSS-R systems usually entirely rely on signals from the Global Positioning Service (GPS), and field experiments could demonstrate that information from such systems can measure sea level with an accuracy of a few centimeter. However, the usage of the Russian GLONASS system has the potential to simplify the processing scheme and to allow handling of direct and reflected signals like a bi-static radar. Thus, such a system has been developed and deployed for test purposes at the Onsala Space Observatory, Sweden, that has an operational GPS-based GNSS-R system. Over a period of two weeks in October 2013, GPS-based GNSS-R sea-level monitoring and measurements with the newly developed GLONASS-R system were carried out in parallel. In addition, data from co-located tide gauge measurements were available for comparison. It can be shown that precision and accuracy of the GLONASS-based GNSS-R system is comparable to, or even better than, conventional GPS-based GNSS-R solutions. Moreover, the simplicity of the newly developed GLONASS-R system allows to make it a cheap and valuable tool for various remote sensing applications.
    Print ISSN: 0048-6604
    Electronic ISSN: 1944-799X
    Topics: Geosciences , Physics
    Published by Wiley on behalf of American Geophysical Union (AGU).
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  • 8
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    Translocation of Helicobacter pylori CagA into gastric epithelial cells by type IV secretion (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2000-02-26
    Description: The Gram-negative bacterium Helicobacter pylori is a causative agent of gastritis and peptic ulcer disease in humans. Strains producing the CagA antigen (cagA(+)) induce strong gastric inflammation and are strongly associated with gastric adenocarcinoma and MALT lymphoma. We show here that such strains translocate the bacterial protein CagA into gastric epithelial cells by a type IV secretion system, encoded by the cag pathogenicity island. CagA is tyrosine-phosphorylated and induces changes in the tyrosine phosphorylation state of distinct cellular proteins. Modulation of host cells by bacterial protein translocation adds a new dimension to the chronic Helicobacter infection with yet unknown consequences.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Odenbreit, S -- Puls, J -- Sedlmaier, B -- Gerland, E -- Fischer, W -- Haas, R -- New York, N.Y. -- Science. 2000 Feb 25;287(5457):1497-500.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Max von Pettenkofer Institute for Hygiene and Medical Microbiology, Ludwig-Maximilians University Munich, D-80336 Munich, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10688800" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Motifs ; *Antigens, Bacterial ; Bacterial Proteins/genetics/*metabolism ; Biological Transport ; Enzyme Inhibitors/pharmacology ; Epithelial Cells/metabolism/microbiology ; Fluorescent Antibody Technique ; Gastric Mucosa/*metabolism/*microbiology ; Genes, Bacterial ; Genetic Complementation Test ; Genistein/pharmacology ; Helicobacter pylori/genetics/*metabolism/pathogenicity ; Humans ; Mutation ; Phosphorylation ; Phosphotyrosine/metabolism ; Protein-Tyrosine Kinases/antagonists & inhibitors/metabolism ; Staurosporine/pharmacology ; Tumor Cells, Cultured ; Virulence
    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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  • 9
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    Kepler-16: a transiting circumbinary planet (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-09-17
    Description: We report the detection of a planet whose orbit surrounds a pair of low-mass stars. Data from the Kepler spacecraft reveal transits of the planet across both stars, in addition to the mutual eclipses of the stars, giving precise constraints on the absolute dimensions of all three bodies. The planet is comparable to Saturn in mass and size and is on a nearly circular 229-day orbit around its two parent stars. The eclipsing stars are 20 and 69% as massive as the Sun and have an eccentric 41-day orbit. The motions of all three bodies are confined to within 0.5 degrees of a single plane, suggesting that the planet formed within a circumbinary disk.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Doyle, Laurance R -- Carter, Joshua A -- Fabrycky, Daniel C -- Slawson, Robert W -- Howell, Steve B -- Winn, Joshua N -- Orosz, Jerome A -- Prsa, Andrej -- Welsh, William F -- Quinn, Samuel N -- Latham, David -- Torres, Guillermo -- Buchhave, Lars A -- Marcy, Geoffrey W -- Fortney, Jonathan J -- Shporer, Avi -- Ford, Eric B -- Lissauer, Jack J -- Ragozzine, Darin -- Rucker, Michael -- Batalha, Natalie -- Jenkins, Jon M -- Borucki, William J -- Koch, David -- Middour, Christopher K -- Hall, Jennifer R -- McCauliff, Sean -- Fanelli, Michael N -- Quintana, Elisa V -- Holman, Matthew J -- Caldwell, Douglas A -- Still, Martin -- Stefanik, Robert P -- Brown, Warren R -- Esquerdo, Gilbert A -- Tang, Sumin -- Furesz, Gabor -- Geary, John C -- Berlind, Perry -- Calkins, Michael L -- Short, Donald R -- Steffen, Jason H -- Sasselov, Dimitar -- Dunham, Edward W -- Cochran, William D -- Boss, Alan -- Haas, Michael R -- Buzasi, Derek -- Fischer, Debra -- New York, N.Y. -- Science. 2011 Sep 16;333(6049):1602-6. doi: 10.1126/science.1210923.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Carl Sagan Center for the Study of Life in the Universe, SETI Institute, 189 Bernardo Avenue, Mountain View, CA 94043, USA. ldoyle@seti.org〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21921192" 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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    Helicobacter pylori vacuolating cytotoxin inhibits T lymphocyte activation (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-08-23
    Description: Helicobacter pylori (Hp) vacuolating cytotoxin VacA induces cellular vacuolation in epithelial cells. We found that VacA could efficiently block proliferation of T cells by inducing a G1/S cell cycle arrest. It interfered with the T cell receptor/interleukin-2 (IL-2) signaling pathway at the level of the Ca2+-calmodulin-dependent phosphatase calcineurin. Nuclear translocation of nuclear factor of activated T cells (NFAT), a transcription factor acting as a global regulator of immune response genes, was abrogated, resulting in down-regulation of IL-2 transcription. VacA partially mimicked the activity of the immunosuppressive drug FK506 by possibly inducing a local immune suppression, explaining the extraordinary chronicity of Hp infections.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gebert, Bettina -- Fischer, Wolfgang -- Weiss, Evelyn -- Hoffmann, Reinhard -- Haas, Rainer -- New York, N.Y. -- Science. 2003 Aug 22;301(5636):1099-102.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Max von Pettenkofer-Institut fur Hygiene und Medizinische Mikrobiologie, LMU Munchen, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12934009" target="_blank"〉PubMed〈/a〉
    Keywords: Apoptosis ; Bacterial Proteins/pharmacology/*physiology ; Bacterial Toxins/pharmacology ; Calcineurin/metabolism ; Calcineurin Inhibitors ; Cyclins/metabolism ; Cytotoxins/pharmacology ; DNA-Binding Proteins/genetics/metabolism ; G1 Phase ; Gene Expression Regulation ; HeLa Cells ; Helicobacter pylori/genetics/*pathogenicity ; Humans ; Interleukin-2/genetics/metabolism ; Jurkat Cells ; *Lymphocyte Activation ; NFATC Transcription Factors ; *Nuclear Proteins ; Oligonucleotide Array Sequence Analysis ; S Phase ; Signal Transduction ; T-Lymphocytes/*immunology/*microbiology/physiology ; Tacrolimus/pharmacology ; Transcription Factors/genetics/metabolism ; Transcription, Genetic ; Transfection
    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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