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  • 2005-2009  (380)
  • 2009  (380)
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  • 2005-2009  (380)
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  • 1
    Monograph available for loan
    Monograph available for loan
    Nonlinear mesoscopic elasticity : the complex behaviour of granular media including rocks and soil (2009)
    Weinheim : Wiley-VCH
    Details
    Call number: M 16.90059
    Description / Table of Contents: This handbook brings together a great deal of new data on the static and dynamic elastic properties of granular and other composite material. The authors are at the very center of today's research and present new and imported theoretical tools that have enabled our current understanding of the complex behavior of rocks.There are three central themes running throughout the presentation: ? Rocks as the prototypical material for defining a class of materials? The PM space model as a useful theoretical construct for developing a phenomenology? A sequence of refined analysis methods. This suite of
    Type of Medium: Monograph available for loan
    Pages: XIII, 395 S. , ill., maps
    ISBN: 9783527407033
    DOI: 10.1002/9783527628261
    Classification:
    Planetary Interiors
    Language: English
    Note: Nonlinear Mesoscopic Elasticity; Contents; Preface; Acknowledgements; 1 Introduction; 1.1 Systems; 1.2 Examples of Phenomena; 1.3 The Domain of Exploration; 1.4 Outline; References; 2 Microscopic/Macroscopic Formulation of the Traditional Theory of Linear and Nonlinear Elasticity; 2.1 Prefatory Remarks; 2.2 From Microscopic to Continuum; 2.2.1 A Microscopic Description; 2.2.2 Microscopic Description and Thermodynamics; 2.2.3 From Microscopic Model to Continuum Elasticity; 2.3 Continuum Elasticity and Macroscopic Phenomenology; 2.3.1 Displacement, Strain, and Stress. , 2.3.2 Dynamics of the Displacement Field2.3.3 Coupling Continuum Elasticity to Auxiliary Fields; 2.3.4 Inhomogeneous Elastic Systems; 2.4 Thermodynamics; 2.4.1 Thermodynamic Derivatives; 2.4.2 Series Expansion for ES; 2.4.3 Series Expansion for EZ; 2.4.4 Series Expansion for FT; 2.4.5 Assemble the Pieces; 2.5 Energy Scales; References; 3 Traditional Theory of Nonlinear Elasticity, Results; 3.1 Quasistatic Response; Linear and Nonlinear; 3.1.1 Quasistatic Response; Linear; 3.1.2 Quasistatic Response; Nonlinear; 3.2 Dynamic Response; Linear; 3.3 Quasistatic/Dynamic Response; Nonlinear. , 3.4 Dynamic Response Nonlinear; 3.4.1 Basic Equations; 3.4.2 Wave Propagation; 3.4.3 Resonant Bar; 3.5 Exotic Response; Nonlinear; 3.6 Green Functions; 3.6.1 Green Function, Free Space; 3.6.2 Green Function, Resonant Bar; References; 4 Mesoscopic Elastic Elements and Macroscopic Equations of State; 4.1 Background; 4.2 Elastic Elements; 4.2.1 Hertz-Mindlin Contacts; 4.2.2 Hysteretic Hertzian Contacts; 4.2.3 Hertzian Asperities; 4.2.4 Van der Waals Surfaces; 4.2.5 Other; 4.3 Effective Medium Theory; 4.4 Equations of State; Examples; 4.4.1 Hertzian Contacts; 4.4.2 Van der Waals Surfaces. , 4.4.3 Generalization and CaveatsReferences; 5 Auxiliary Fields; 5.1 Temperature; 5.2 Saturation; 5.2.1 Saturation/Strain Coupling; 5.2.2 Saturation/Strain Response; 5.3 The Conditioning Field, X; References; 6 Hysteretic Elastic Elements; 6.1 Finite Displacement Elastic Elements; Quasistatic Response; 6.1.1 Finite Displacement Elastic Elements: The Model; 6.1.2 Finite Displacement Elastic Element: Implementing the Model; 6.2 Finite Displacement Elastic Elements: Inversion; 6.3 Finite Displacement Elastic Elements: Dynamic Response; 6.3.1 Finite Displacement Elastic Element: Resonant Bar. , 6.3.2 Finite Displacement Elastic Element: Wave Mixing6.4 Models with Hysteresis; 6.5 Summary; 6.6 Models with Hysteresis, Detail; 6.6.1 Hertzian Contacts; 6.6.2 The Masing Rules; 6.6.3 The Endochronic Formalism; References; 7 The Dynamics of Elastic Systems; Fast and Slow; 7.1 Fast/Slow Linear Dynamics; 7.1.1 Quasistatic Response; 7.1.2 AC Response; 7.2 Fast Nonlinear Dynamics; 7.3 Auxiliary Fields and Slow Dynamics; 7.3.1 X = The Conditioning Field; 7.3.2 X = Temperature; 7.4 Summary; References; 8 Q and Issues of Data Modeling/Analysis; 8.1 Attenuation in Linear Elastic Systems. , 8.1.1 Wave Vector Dispersion.
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  • 2
    Unknown
    Antarctic Climate Change and the Environment : A contribution to the International Polar Year 2007-2008 (2009)
    Cambridge, UK : Scientific Committee on Antarctic Research (SCAR)
    Details
    Keywords: climate change ; Antarctic ; Southern Ocean ; greenhouse gas ; carbon uptake ; climate models
    Description / Table of Contents: This volume provides a comprehensive, up-to-date account of how the physical and biological environment of the Antarctic continent and Southern Ocean has changed from Deep Time until the present day. It also considers how the Antarctic environment may change over the next century in a world where greenhouse gas concentrations are much higher than occurred over the last few centuries. The Antarctic is a highly coupled system with non-linear interactions between the atmosphere, ocean, ice and biota, along with complex links to the rest of the Earth system. In preparing this volume our approach has been highly cross-disciplinary, with the goal of reflecting the importance of the continent in global issues, such as sea level rise, the separation of natural climate variability from anthropogenic influences, food stocks, biodiversity and carbon uptake by the ocean. One hundred experts in Antarctic science have contributed and drafts of the manuscript were reviewed by over 200 scientists. We hope that it will be of value to all scientists with an interest in the Antarctic continent and the Southern Ocean, policy makers and those concerned with the deployment of observing systems and the development of climate models.
    Pages: Online-Ressource (XXVIII, 526 Seiten)
    ISBN: 9780948277221
    URL: http://www.scar.org/publications/occasionals/acce.html
    Language: English
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  • 3
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    An investigation of the phase locking index for measuring of interdependency of cortical source signals recorded in the EEG (2009)
    Springer
    Details
    Publication Date: 2009-01-17
    Print ISSN: 0340-1200
    Electronic ISSN: 1432-0770
    Topics: Biology , Computer Science , Physics
    Published by Springer
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  • 4
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    Thyroid function following hematopoietic cell transplantation in children: 30 years' experience (2009)
    American Society of Hematology
    Details
    Publication Date: 2009-01-08
    Description: Thyroid dysfunction is a known complication after hematopoietic cell transplantation (HCT) in children with reports involving relatively short follow-up and small patient numbers. This study involves 791 patients less than 18 years of age at HCT at the Fred Hutchinson Cancer Research Center with follow-up from 1969 through 2007. Thyroid dysfunction continued for 28 years after transplantation. Hypothyroidism was the most common abnormality with other abnormalities of hyperthyroidism and thyroiditis. Multivariate analysis showed that thyroid dysfunction was more likely if patients were less than 10 years of age (P 〈 .001), but there was no difference between receiving a total body irradiation or busulfan based regimens (P = .48) compared with cyclophosphamide conditioning alone (P = .008). Thyroid tumors occurred at a median of 9.9 (4.5-22.3) years after HCT and included 13 with papillary carcinoma and 5 with benign adenomas. Children who receive a HCT should be monitored for thyroid abnormalities throughout life.
    Print ISSN: 0006-4971
    Electronic ISSN: 1528-0020
    Topics: Biology , Medicine
    Published by American Society of Hematology
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  • 5
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    Cenomanian benthic foraminifera of Demerara Rise (2009)
    PANGAEA
    In:  Supplement to: Friedrich, Oliver; Erbacher, Jochen; Wilson, Paul A; Moriya, Kazuyoshi; Mutterlose, Jörg (2009): Paleoenvironmental changes across the Mid Cenomanian Event in the tropical Atlantic Ocean (Demerara Rise, ODP Leg 207) inferred from benthic foraminiferal assemblages. Marine Micropaleontology, 71(1-2), 28-40, https://doi.org/10.1016/j.marmicro.2009.01.002
    Details
    Publication Date: 2024-01-09
    Description: This study is based on Cenomanian sediments of Ocean Drilling Program (ODP) Sites 1258 and 1260 from Demerara Rise (Leg 207, western tropical Atlantic, off Suriname, ~1000 and ~500 m paleo-water depth, respectively). Studied sediments consist of laminated black shales with TOC values between 3 and 18% and include the Mid Cenomanian Event (MCE), a positive carbon isotope excursion predating the well-known Oceanic Anoxic Event 2 (OAE 2). Benthic foraminiferal assemblages of the continuously eutrophic environment at Demerara Rise are characterized by low diversities (〈= 9 species per sample) and large fluctuations in abundances, indicating oxygen depletion and varying organic matter fluxes. Dominant species at both sites are Bolivina anambra, Gabonita levis, Gavelinella dakotensis, Neobulimina albertensis, Praebulimina prolixa, and Tappanina cf. laciniosa. Benthic foraminiferal assemblages across the MCE show a threefold pattern: (1) stable ecological conditions below the MCE interval indicated by relatively high oxygenation and fluctuating organic matter flux, (2) decreasing oxygenation and/or higher organic matter flux during the MCE with decreasing benthic foraminiferal numbers and diversities (Site 1258) and a dominance of opportunistic species (Site 1260), and (3) anoxic to slightly dysoxic bottom-water conditions above the MCE as indicated by very low diversities and abundances or even the absence of benthic foraminifera. Slightly dysoxic conditions prevailed until OAE 2 at Demerara Rise. A comparison with other Atlantic Ocean and Tethyan sections indicates that the MCE reflects a paleoceanographic turning point towards lower bottom-water oxygenation, at least in the proto-North Atlantic Ocean and in the Tethyan and Boreal Realms. This general trend towards lower oxygenation of bottom waters across the MCE is accompanied by ongoing climate warming in combination with rising sea-level and the development of vast shallow epicontinental seas during the Middle and Late Cenomanian. These changes are proposed to have favoured the formation of warm and saline waters that may have contributed to intermediate- and deep-water masses at least in the restricted proto-North Atlantic and Tethyan Ocean basins, poor oxygenation of the Late Cenomanian sediments, and the changes in benthic foraminiferal assemblages across the MCE.
    Keywords: 207-1258A; 207-1260A; 207-1260B; DRILL; Drilling/drill rig; Joides Resolution; Leg207; Ocean Drilling Program; ODP; South Atlantic Ocean
    Type: Dataset
    Format: application/zip, 2 datasets
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  • 6
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    (Appendix A1) Cenomanian benthic foraminifera of ODP Hole 207-1258A (2009)
    PANGAEA
    Details
    Publication Date: 2024-01-09
    Keywords: 207-1258A; Astacolus parallelus; Bolivina anambra; Buliminella fabilis; Counting 〉63 µm fraction; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Foraminifera, benthic; Gabonita levis; Gavelinella cf. intermedia; Gavelinella dakotensis; Joides Resolution; Laevidentalina sp.; Leg207; Neobulimina albertensis; Ocean Drilling Program; ODP; Praebulimina prolixa; Sample code/label; Saracenaria cf. erlitta; South Atlantic Ocean; Tappanina laciniosa
    Type: Dataset
    Format: text/tab-separated-values, 429 data points
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  • 7
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    (Appendix A2) Cenomanian benthic foraminifera of ODP Site 207-1260 (2009)
    PANGAEA
    Details
    Publication Date: 2024-01-09
    Keywords: 207-1260A; 207-1260B; Astacolus parallelus; Bolivina anambra; Buliminella fabilis; Conorboides sp.; Counting 〉63 µm fraction; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Event label; Foraminifera, benthic; Fursenkoina croneisi; Gabonita levis; Gavelinella dakotensis; Gavelinella sp.; Joides Resolution; Laevidentalina sp.; Leg207; Neobulimina albertensis; Ocean Drilling Program; ODP; Praebulimina prolixa; Praebulimina sp.; Sample code/label; South Atlantic Ocean; Tappanina laciniosa
    Type: Dataset
    Format: text/tab-separated-values, 480 data points
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  • 8
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    Stable oxygen and carbon isotope data for planktic and benthic foraminifera from southern Atlantic of DSDP Hole 74-525A and ODP Hole 113-690C (2009)
    PANGAEA
    In:  Supplement to: Friedrich, Oliver; Herrle, Jens O; Wilson, Paul A; Cooper, Matthew J; Erbacher, Jochen; Hemleben, Christoph (2009): Early Maastrichtian carbon cycle perturbation and cooling event: Implications from the South Atlantic Ocean. Paleoceanography, 24(2), PA2211, https://doi.org/10.1029/2008PA001654
    Details
    Publication Date: 2024-01-09
    Description: Published stable isotope records in marine carbonate are characterized by a positive d18O excursion associated with a negative d13C shift during the early Maastrichtian. However, the cause and even the precise timing of these excursions remain uncertain. We have generated high-resolution foraminiferal stable isotope and gray-scale records for the latest Campanian to early Maastrichtian (73-68 Ma) at two Ocean Drilling Program sites, 525 (Walvis Ridge) and 690 (Weddell Sea). We demonstrate that the negative d13C excursion is decoupled from the d18O increase with a lag of about 600 ka. Our d13C records (both planktic and benthic) show an amplitude for the negative excursion of 0.7 per mill that falls between about 72.1 and 70.7 Ma. Our planktic d18O records indicate an overall increase of 1.2 per mill from 73 to 68 Ma at Site 690, whereas at Site 525 they record a slightly smaller increase (1 per mill) that peaks around 70.1 Ma with decreasing values thereafter. Our benthic d18O data indicate an increase of 1.5 per mill at Site 525 and 0.7 per mill at Site 690 between about 71.4 and 69.9 Ma. Benthic d18O values show different baseline values at the two sites before and after the excursion, but the larger increase at Site 525 means that the values attained at the peak of the excursion are similar at the two sites. We interpret this observation in terms of water mass changes. The excursion is interpreted to reflect a cooling of bottom waters in response to the strengthening contribution of intermediate- to deep-water production in the high southern latitudes rather than increased ice volume. The associated carbon cycle perturbations that we observe are interpreted to reflect a weakening of surface water stratification and increased productivity, as supported by our gray value data.
    Keywords: 113-690C; 74-525A; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Joides Resolution; Leg113; Leg74; Ocean Drilling Program; ODP; South Atlantic/CREST; South Atlantic Ocean
    Type: Dataset
    Format: application/zip, 2 datasets
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  • 9
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    Stable oxygen and carbon isotope data for planktic and benthic foraminifera of ODP Hole 113-690C (2009)
    PANGAEA
    Details
    Publication Date: 2024-01-09
    Keywords: 113-690C; Archaeoglobigerina australis, δ13C; Archaeoglobigerina australis, δ18O; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Gavelinella beccariiformis, δ13C; Gavelinella beccariiformis, δ18O; Isotope ratio mass spectrometry; Joides Resolution; Leg113; Ocean Drilling Program; ODP; Sample code/label; South Atlantic Ocean
    Type: Dataset
    Format: text/tab-separated-values, 1294 data points
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  • 10
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    (Table 1) Stable isotope record of Middle Cretaceous benthic foraminifera (2009)
    PANGAEA
    In:  Supplement to: Sexton, Philip F; Wilson, Paul A (2009): Preservation of benthic foraminifera and reliability of deep-sea temperature records: Importance of sedimentation rates, lithology, and the need to examine test wall structure. Paleoceanography, 24(2), PA2208, https://doi.org/10.1029/2008PA001650
    Details
    Publication Date: 2024-01-19
    Description: Preservation of planktic foraminiferal calcite has received widespread attention in recent years, but the taphonomy of benthic foraminiferal calcite and its influence on the deep-sea palaeotemperature record have gone comparatively unreported. Numerical modeling indicates that the carbonate recrystallization histories of deep-sea sections are dominated by events in their early burial history, meaning that the degree of exchange between sediments and pore fluids during the early postburial phase holds the key to determining the palaeotemperature significance of diagenetic alteration of benthic foraminifera. Postburial sedimentation rate and lithology are likely to be important determinants of the paleoceanographic significance of this sediment–pore fluid interaction. Here we report an investigation of the impact of extreme change in sedimentation rate (a prolonged and widespread Upper Cretaceous hiatus in the North Atlantic Ocean) on the preservation and d18O of benthic foraminifera of Middle Cretaceous age (nannofossil zone NC10, uppermost Albian/lowermost Cenomanian, ~99 Ma ago) from multiple drill sites. At sites where this hiatus immediately overlies NC10, benthic foraminifera appear to display at least moderate preservation of the whole test. However, on closer inspection, these tests are shown to be extremely poorly preserved internally and yield d18O values substantially higher than those from contemporaneous better preserved benthic foraminifera at sites without an immediately overlying hiatus. These high d18O values are interpreted to indicate alteration close to the seafloor in cooler waters during the Late Cretaceous hiatus. Intersite differences in lithology modulate the diagenetic impact of this extreme change in sedimentation rate. Our results highlight the importance of thorough examination of benthic foraminiferal wall structures and lend support to the view that sedimentation rate and lithology are key factors controlling the paleoceanographic significance of diagenetic alteration of biogenic carbonates.
    Keywords: 122-763B; 14-137; 171-1050C; 40-363; 41-370; 47-398D; 79-545; 80-550B; Berthelina sp., δ13C; Berthelina sp., δ18O; Berthelina spp., δ13C; Berthelina spp., δ18O; Blake Nose, North Atlantic Ocean; Comment; Deep Sea Drilling Project; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Elevation of event; Epistomina sp., δ13C; Epistomina sp., δ18O; Event label; Foraminifera, benthic δ13C; Foraminifera, benthic δ18O; Gavelinella sp., δ13C; Gavelinella sp., δ18O; Glomar Challenger; Gyroidina globosa, δ13C; Gyroidina globosa, δ18O; Gyroidinoides infracretacea, δ13C; Gyroidinoides infracretacea, δ18O; Gyroidinoides sp., δ13C; Gyroidinoides sp., δ18O; Joides Resolution; Latitude of event; Leg122; Leg14; Leg171B; Leg40; Leg41; Leg47; Leg79; Leg80; Longitude of event; North Atlantic/BASIN; North Atlantic/HILL; North Atlantic/PLAIN; North Atlantic/PLATEAU; North Atlantic/SEAMOUNT; Nuttallides sp., δ13C; Nuttallides sp., δ18O; Ocean Drilling Program; ODP; Planulina sp., δ13C; Planulina sp., δ18O; Reference/source; Sample code/label; South Atlantic/RIDGE; South Indian Ridge, South Indian Ocean
    Type: Dataset
    Format: text/tab-separated-values, 487 data points
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