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  • Other Sources  (26)
  • American Geophysical Union  (17)
  • American Chemical Society
  • International Union of Crystallography (IUCr)
  • Wiley-Blackwell
  • 2000-2004  (4)
  • 1995-1999  (9)
  • 1990-1994  (13)
  • 1980-1984
  • 1955-1959
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  • 1
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    Zinc Complexation in Hydrothermal Chloride Brines: Results from ab Initio Molecular Dynamics Calculations (2003)
    American Chemical Society
    In:  The Journal of Physical Chemistry A, 107 (7). pp. 1050-1054.
    Details
    Publication Date: 2020-05-11
    Description: We determined the coordination environment of Zn2+ in aqueous Cl- brines at 25 °C and 300 °C using ab initio molecular dynamics simulations. The ZnCl+ and ZnCl2 complexes exist as pseudo-octahedral ZnClm(H2O)6-m clusters at 25 °C but occur as pseudo-tetrahedral ZnClm(H2O)4-m clusters at 300 °C. The ZnCl3- complex occurs as the pseudo-tetrahedral ZnCl3(H2O)- cluster at 25 and 300 °C. The tetrahedral ZnCl42- complex, however, is the dominant Zn−Cl complex at 25 °C, at least in highly concentrated (7.4 m) Cl- brines. The change in hydration number with temperature for the ZnCl+ and ZnCl2 complexes will complicate extrapolations of solvation energies to hydrothermal conditions using a Born-model-based equation of state.
    Type: Article , PeerReviewed
    Format: text
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    PAPER (OCEANREP)
  • 2
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    Calcium isotopic composition of various standards and seawater (2003)
    Wiley-Blackwell
    In:  Geostandards Newsletter, 27 (1). pp. 13-19.
    Details
    Publication Date: 2019-01-22
    Description: A compilation of δ44/40Ca (δ44/40Ca) data sets of different calcium reference materials is presented, based on measurements in three different laboratories (Institute of Geological Sciences, Bern; Centre de Géochimie de la Surface, Strasbourg; GEOMAR, Kiel) to support the establishment of a calcium isotope reference standard. Samples include a series of international and internal Ca reference materials, including NIST SRM 915a, seawater, two calcium carbonates and a CaF2 reference sample. The deviations in δ44/40Ca for selected pairs of reference samples have been defined and are consistent within statistical uncertainties in all three laboratories. Emphasis has been placed on characterising both NIST SRM 915a as an internationally available high purity Ca reference sample and seawater as representative of an important and widely available geological reservoir. The difference between δ44/40Ca of NIST SRM 915a and seawater is defined as -1.88 O.O4%o (δ44/42CaNISTSRM915a/Sw= -0.94 0.07%o). The conversion of values referenced to NIST SRM 915a to seawater can be described by the simplified equation δ44/40CaSa/Sw=δ44/40CaSa/NIST SRM 915a - 1.88 (δ44/42CaSa/Sw=δ44/42CaSa/NIST SRM 915a - 0.94). We propose the use of NIST SRM 915a as general Ca isotope reference standard, with seawater being defined as the major reservoir with respect to oceanographic studies.
    Type: Article , PeerReviewed
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  • 3
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    Microcionamides A and B, bioactive peptides from the Philippine sponge Clathria (Thalysias) abietina (2004)
    American Chemical Society
    In:  Journal of Organic Chemistry, 69 (12). pp. 4170-4176.
    Details
    Publication Date: 2020-07-22
    Description: Microcionamides A (1) and B (2) have been isolated from the Philippine marine sponge Clathria (Thalysias) abietina. These new linear peptides are cyclized via a cystine moiety and have their C-terminus blocked by a 2-phenylethylenamine group. Their total structures, including absolute stereochemistry, were determined by a combination of spectral and chemical methods. Compound 1 was shown to slowly isomerize about the C-36/C-37 double bond when stored in DMSO. Microcionamides A (1) and B (2) exhibited significant cytotoxicity against the human breast tumor cells lines MCF-7 and SKBR-3 and displayed inhibitory activity against Mycobacterium tuberculosis H37Ra.
    Type: Article , PeerReviewed
    Format: text
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  • 4
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    Computational Seismology and Geodynamics (1994)
    American Geophysical Union
    In:  London, American Geophysical Union, vol. 1, no. 3, pp. 632 pp., (ISBN-10: 1-84628-053-2, ISBN-13:978-1-84628-053-5, eISBN 1-84628-054-0, xx + 591 pp. + CD-ROM)
    Details
    Publication Date: 1994
    Keywords: Seismology ; GeodesyY ; Synthetic seismograms
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    BIBLIOGRAPHY SEISMOLOGY
  • 5
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    Seismicity modeling and earthquake prediction: A review (1994)
    American Geophysical Union
    In:  Professional Paper, Nonlinear Dynamics and Predictability of Geophysical Phenomena, Washington, American Geophysical Union, vol. 24, no. 231, pp. 7-13, (ISBN: 3-540-23712-7)
    Details
    Publication Date: 1994
    Keywords: Modelling ; Earthquake precursor: prediction research ; Earthquake precursor: statistical anal. of seismicity ; criticality ; Review article ; Chaotic behaviour ; FractureT
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    BIBLIOGRAPHY SEISMOLOGY
  • 6
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    Chaos: A historical perspective (1994)
    American Geophysical Union
    In:  Bull., Polar Proj. OP-O3A4, Nonlinear Dynamics and Predictability of Geophysical Phenomena, Washington, American Geophysical Union, vol. 1, no. 4, pp. 1-5, (ISBN 0080419208)
    Details
    Publication Date: 1994
    Keywords: Review article ; Non-linear effects ; Chaotic behaviour
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    BIBLIOGRAPHY SEISMOLOGY
  • 7
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    Isotopic decay data (1995)
    American Geophysical Union
    In:  Professional Paper, Global Earth Physics: A Handbook of Physical Constants, Washington, American Geophysical Union, vol. 1, no. 16, pp. 271-282, (ISBN 0080419208)
    Details
    Publication Date: 1995
    Keywords: Review article ; radioactivity ; Handbook of geophysics ; Handbook of physics
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    BIBLIOGRAPHY SEISMOLOGY
  • 8
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    Rheology of rocks (1995)
    American Geophysical Union
    In:  Professional Paper, Rock Physics & Phase Relations - A Handbook of Physical Constants, Washington, D.C., American Geophysical Union, vol. 1002, no. 231, pp. 148-165, (ISBN 1-4020-1729-4)
    Details
    Publication Date: 1995
    Keywords: Rheology ; Inelastic ; Rock mechanics ; Physical properties of rocks ; Review article
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    BIBLIOGRAPHY SEISMOLOGY
  • 9
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    Models of mantle viscosity (1995)
    American Geophysical Union
    In:  Bull., Polar Proj. OP-O3A4, Mineral Physics & Crystallography - A Handbook of Physical Constants, Washington, D.C., American Geophysical Union, vol. 3, no. 1, pp. 227-236, (ISBN: 3-540-23712-7)
    Details
    Publication Date: 1995
    Keywords: Rheology ; Inelastic ; Modelling ; Review article ; Geothermics ; Earth model, also for more shallow analyses !
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    BIBLIOGRAPHY SEISMOLOGY
  • 10
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    Is the dynamics of the lithosphere chaotic? (1994)
    American Geophysical Union
    In:  Bull., Polar Proj. OP-O3A4, Nonlinear Dynamics and Predictability of Geophysical Phenomena, Washington, American Geophysical Union, vol. 48, no. 4, pp. 37-41, (ISBN 0080419208)
    Details
    Publication Date: 1994
    Keywords: Dynamic ; Chaotic behaviour ; Non-linear effects
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    BIBLIOGRAPHY SEISMOLOGY
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