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  • Elsevier  (18)
  • Wiley  (10)
  • PANGAEA  (5)
  • Oxford University Press  (4)
  • American Association for the Advancement of Science (AAAS)  (1)
  • Nürnberg: Institut für Arbeitsmarkt- und Berufsforschung (IAB)
  • 2010-2014  (38)
  • 2014  (9)
  • 2013  (11)
  • 2011  (18)
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  • 2010-2014  (38)
Year
  • 2014  (9)
  • 2013  (11)
  • 2011  (18)
  • 2012  (19)
  • 2010  (14)
  • 1
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    PANGAEA
    In:  Supplement to: Mangelsdorf, Kai; Zink, Klaus-Gerhard; di Primio, Rolando; Horsfield, Brian (2011): Microbial lipid markers within and adjacent to Challenger Mound in the Belgica carbonate mound province, Porcupine Basin, offshore Ireland (IODP Expedition 307). Marine Geology, 282(1-2), 91-101, https://doi.org/10.1016/j.margeo.2010.05.007
    Publication Date: 2023-06-27
    Description: During the Integrated Ocean Drilling Program (IODP) Expedition 307 for the first time a cold-water coral carbonate mound was drilled down through its base into the underlying sediments. In the current study, sample material from within and below Challenger Mound, located in the Belgica carbonate mound province in the Porcupine Basin offshore Ireland, was investigated for its distribution of microbial communities and gas composition using biogeochemical and geochemical approaches to elucidate the question on the initiation of carbonate mounds. Past and living microbial populations are lower in the mound section compared to the underlying sediments or sediments of an upslope reference site. A reason for this might be a reduced substrate feedstock, reflected by low total organic carbon (TOC) contents, in the once coral dominated mound sequence. In contrast, in the reference site a lithostratigraphic sequence with comparatively high TOC contents shows higher abundances of both past and present microbial communities, indicating favourable living conditions from time of sedimentation until today. Composition and isotopic values of gases below the mound base seem to point to a mixed gas of biogenic and thermogenic origin with a higher proportion of biogenic gas. Oil-derived hydrocarbons were not detected at the mound site. This suggests that at least in the investigated part of the mound base the upward flow of fossil hydrocarbons, being one hypothesis for the initiation of the formation of carbonate mounds, seems to be only of minor significance.
    Keywords: 307-U1317A; 307-U1317D; 307-U1318A; 307-U1318B; DRILL; Drilling/drill rig; Exp307; Integrated Ocean Drilling Program / International Ocean Discovery Program; IODP; Joides Resolution; Porcupine Basin Carbonate Mounds
    Type: Dataset
    Format: application/zip, 4 datasets
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  • 2
    Publication Date: 2023-06-27
    Keywords: 307-U1317A; 307-U1317D; C1/(C2+C3) hydrocarbon ratio; Carbon dioxide; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Ethane; Event label; Exp307; Integrated Ocean Drilling Program / International Ocean Discovery Program; IODP; Isobutane; Isobutane/n-Butane ratio; Joides Resolution; Methane; n-Butane; Porcupine Basin Carbonate Mounds; Propane; Sample code/label; δ13C, methane; δ Deuterium, methane
    Type: Dataset
    Format: text/tab-separated-values, 158 data points
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  • 3
    Publication Date: 2023-06-27
    Keywords: 307-U1318A; DEPTH, sediment/rock; DRILL; Drilling/drill rig; Exp307; Integrated Ocean Drilling Program / International Ocean Discovery Program; IODP; Joides Resolution; Phosphatidylethanolamine, per unit mass total organic carbon; Phosphatidylethanolamine, per unit sediment dry mass; Phosphatidylglycerol, per unit mass total organic carbon; Phosphatidylglycerol, per unit sediment dry mass; Phospholipids, per unit mass total organic carbon; Phospholipids, per unit sediment dry mass; Porcupine Basin Carbonate Mounds; Sample code/label
    Type: Dataset
    Format: text/tab-separated-values, 54 data points
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  • 4
    Publication Date: 2023-11-30
    Keywords: 307-U1317A; 307-U1317D; Carbon, organic, total; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Event label; Exp307; Hopane, alpha/beta, per unit sediment dry mass; Hopane, alpha/beta, per unit sediment dry mass on a carbonate free base; Hopane, alpha/beta, total organic carbon; Hopane, beta/beta, per unit sediment dry mass; Hopane, beta/beta, per unit sediment dry mass on a carbonate free base; Hopane, beta/beta, total organic carbon; Integrated Ocean Drilling Program / International Ocean Discovery Program; IODP; Joides Resolution; n-Alkane C23-35, per unit sediment dry mass; n-Alkane C23-35, per unit sediment dry mass on a carbonate free base; n-Alkane C23-35, total organic carbon; Porcupine Basin Carbonate Mounds; Sample code/label; Total hopanoids, per unit sediment dry mass; Total hopanoids, per unit sediment dry mass on a carbonate free base; Total hopanoids, total organic carbon; δ13C, organic carbon
    Type: Dataset
    Format: text/tab-separated-values, 318 data points
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  • 5
    Publication Date: 2023-11-30
    Keywords: 307-U1318A; 307-U1318B; Carbon, organic, total; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Event label; Exp307; Hopane, alpha/beta, per unit sediment dry mass; Hopane, alpha/beta, per unit sediment dry mass on a carbonate free base; Hopane, alpha/beta, total organic carbon; Hopane, beta/beta, per unit sediment dry mass; Hopane, beta/beta, per unit sediment dry mass on a carbonate free base; Hopane, beta/beta, total organic carbon; Integrated Ocean Drilling Program / International Ocean Discovery Program; IODP; Joides Resolution; Mass spectrometer Finnigan Delta-E; n-Alkane C23-35, per unit sediment dry mass; n-Alkane C23-35, per unit sediment dry mass on a carbonate free base; n-Alkane C23-35, total organic carbon; Porcupine Basin Carbonate Mounds; Sample code/label; Total hopanoids, per unit sediment dry mass; Total hopanoids, per unit sediment dry mass on a carbonate free base; Total hopanoids, total organic carbon; δ13C, organic carbon
    Type: Dataset
    Format: text/tab-separated-values, 180 data points
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  • 6
    Publication Date: 2013-09-01
    Print ISSN: 1350-4487
    Electronic ISSN: 1879-0925
    Topics: Electrical Engineering, Measurement and Control Technology , Physics
    Published by Elsevier
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  • 7
    Publication Date: 2014-10-10
    Description: Weather generators are used for spatio-temporal downscaling of climate model outputs (e.g., precipitation and temperature) to investigate the impact of climate change on the hydrological cycle. In this study, a multiplicative random cascade model is proposed for the stochastic temporal disaggregation of monthly to daily precipitation fields, which is designed to be applicable to grids of any spatial resolution and extent. The proposed method uses stationary distribution functions that describe the partitioning of precipitation throughout multiple temporal scales (e.g., weekly and bi-weekly scale). Moreover, it explicitly considers the intensity and spatial covariance of precipitation in the disaggregation procedure, but requires no assumption about the temporal relationship and spatial isotropy of precipitation fields. A split sampling test is conducted on a high-resolution (i.e., 4×4 km 2 grid) daily precipitation data set over Germany (≈ 357 000 km 2 ) to assess the performance of the proposed method during future periods. The proposed method has proven to consistently reproduce distinctive location dependent precipitation distribution functions with biases less than 5% during both a calibration and evaluation period. Furthermore, extreme precipitation amounts and the spatial and temporal covariance of the generated fields are comparable to those of the observations. Consequently, the proposed temporal disaggregation approach satisfies the minimum conditions for a precipitation generator aiming at the assessment of hydrological response to climate change at regional and continental scales or for generating seamless predictions of hydrological variables.
    Print ISSN: 0043-1397
    Electronic ISSN: 1944-7973
    Topics: Architecture, Civil Engineering, Surveying , Geography
    Published by Wiley on behalf of American Geophysical Union (AGU).
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  • 8
    Publication Date: 2011-03-26
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bolon, Brad -- Altrock, Bruce -- Barthold, Stephen W -- Baumgarth, Nicole -- Besselsen, David -- Boivin, Gregory -- Boyd, Kelli L -- Brayton, Cory -- Cardiff, Robert D -- Couto, Suzana -- Eaton, Kathryn A -- Foreman, Oded -- Griffey, Stephen M -- La Perle, Krista -- Lairmore, Michael D -- Liu, Chen -- Meyerholz, David K -- Nikitin, Alexander Yu -- Schoeb, Trenton R -- Schwahn, Denise -- Sellers, Rani S -- Sundberg, John P -- Tolwani, Ravi -- Valli, Victor E -- Zink, M Christine -- U01 CA141582/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2011 Mar 25;331(6024):1516-7. doi: 10.1126/science.331.6024.1516-b.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21436422" target="_blank"〉PubMed〈/a〉
    Keywords: National Institutes of Health (U.S.)/*organization & administration ; Translational Medical Research/*organization & administration ; United States
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 9
    Publication Date: 2013-04-03
    Description: When an accretion disc falls prey to the runaway instability, a large portion of its mass is devoured by the black hole within a few dynamical times. Despite decades of effort, it is still unclear under what conditions such an instability can occur. The technically most advanced relativistic simulations to date were unable to find a clear sign for the onset of the instability. In this work, we present three-dimensional relativistic hydrodynamics simulations of accretion discs around black holes in dynamical space–time. We focus on the configurations that are expected to be particularly prone to the development of this instability. We demonstrate, for the first time, that the fully self-consistent general relativistic evolution does indeed produce a runaway instability.
    Print ISSN: 0035-8711
    Electronic ISSN: 1365-2966
    Topics: Physics
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  • 10
    Publication Date: 2014-01-10
    Description: Mesoporous silica nanoparticles with a cubic ( Ia 3 d ) pore structure are derivatized with light-activated nanoimpellers to control the release of loaded guest molecules under external photo-control. The nanoimpellers consist of azobenzene derivatives that are attached to the interiors of the three-dimensional interconnected pores, and undergo photoisomerization that results in dynamic wagging motions of the unbound termini and drives the expulsion of molecules from the pores. Stimulated release experiments monitored by fluorescence spectroscopy demonstrate that the nanoimpeller-functionalized MCM-48 particles are able to trap and release both hydrophilic and hydrophobic cargo molecules under external photocontrol in aqueous, non-aqueous, and intracellular environments.
    Print ISSN: 0044-2313
    Electronic ISSN: 1521-3749
    Topics: Chemistry and Pharmacology
    Published by Wiley
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