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  • Articles  (30,158)
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  • 1
    Electronic Resource
    Electronic Resource
    Mutagenicity of Organic Pollutants and Their Active Components in the Xi River Water at Shenyang (1996)
    Springer
    Bulletin of environmental contamination and toxicology 56 (1996), S. 803 -808 
    Details
    ISSN: 1432-0800
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001289900117
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Gradient and sensitivity enhancement of 2D TROSY with water flip-back, 3D NOESY-TROSY and TOCSY-TROSY experiments (1999)
    Springer
    Journal of biomolecular NMR 13 (1999), S. 77-81 
    Details
    ISSN: 1573-5001
    Keywords: multidimensional NMR ; NOESY-TROSY ; proteins ; sensitivity enhancement ; TOCSY-TROSY ; TROSY ; water flip-back
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Previously we demonstrated a sensitivity enhancement of the original TROSY experiment by a factor of $$\sqrt 2$$ by the use of the sensitivity enhanced TROSY (en-TROSY) scheme. Here, we develop a gradient and sensitivity enhanced TROSY experiment (gs-TROSY), which is designed to select magnetization transfer pathways that suppress spectral artifacts and reduce the number of required phase cycles while having minimal loss of sensitivity. Both of these experimental methods (en-TROSY and gs- TROSY) have been combined with a water flip-back scheme which provides a further increase in sensitivity for labile NH groups by avoiding water saturation. We also apply these TROSY schemes to 3D NOESY-TROSY and 3D TOCSY-TROSY experiments.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1008398227519
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Gradient and sensitivity enhanced multiple-quantum coherence in heteronuclear multidimensional NMR experiments (1999)
    Springer
    Journal of biomolecular NMR 14 (1999), S. 133-140 
    Details
    ISSN: 1573-5001
    Keywords: HMQC ; multidimensional NMR ; protein ; sensitivity enhancement
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Recent studies have indicated that the relaxation rate of the 1H-13C multiple-quantum coherence is much slower than that of the 1H-13C single-quantum coherence for non-aromatic methine sites in 13 C labeled proteins and in nucleic acids at the slow tumbling limit. Several heteronuclear experiments have been designed to use a multiple-quantum coherence transfer scheme instead of the single-quantum transfer method, thereby increasing the sensitivity and resolution of the spectra. Here, we report a constant time, gradient and sensitivity enhanced HMQC experiment (CT-g/s-HMQC) and demonstrate that it has a significant sensitivity enhancement over constant time HMQC and constant time gradient and sensitivity enhanced HSQC experiments (CT-g/s-HSQC) when applied to a 13C and 15 N labeled calmodulin sample in D2O. We also apply this approach to 3D NOESY-HMQC and doubly sensitivity enhanced TOCSY-HMQC experiments, and demonstrate that they are more sensitive than their HSQC counterparts.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1004583910874
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    Paper (German National Licenses)
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  • 4
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    Design and numerical simulation on an auto-cumulative flowmeter in horizontal oil–water two-phase flow (2017)
    American Institute of Physics
    Details
    Publication Date: 2017-11-01
    Print ISSN: 0034-6748
    Electronic ISSN: 1089-7623
    Topics: Electrical Engineering, Measurement and Control Technology , Physics
    Published by American Institute of Physics
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  • 5
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    A novel anti-inflammatory mechanism of high density lipoprotein through up-regulating annexin A1 in vascular endothelial cells (2016)
    Elsevier
    Details
    Publication Date: 2016-06-01
    Print ISSN: 1388-1981
    Electronic ISSN: 1879-2618
    Topics: Biology , Chemistry and Pharmacology , Medicine , Physics
    Published by Elsevier
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    PAPER CURRENT
  • 6
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    SMART Cables Observing the Oceans and Earth (2022)
    In:  Marine Technology Society Journal
    Details
    Publication Date: 2022-11-14
    Description: The Joint Task Force, Science Monitoring And Reliable Telecommunications (SMART) Subsea Cables is working to integrate environmental sensors (temperature, pressure, seismic acceleration) into submarine telecommunications cables. This will support climate and ocean observation, sea-level monitoring, observations of Earth structure, tsunami and earthquake early warning, and disaster risk reduction. Recent advances include regional SMART pilot systems that are the initial steps to trans-ocean and global implementation. Building on the OceanObs’19 conference and community white paper (https://doi.org/10.3389/ fmars.2019.00424), this paper presents an overview of the initiative and a description of ongoing projects including: InSea wet demonstration project off Sicily; Vanuatu and New Caledonia; Indonesia; CAM-2 ring system connecting the Portuguese mainland, Azores, and Madeira; New Zealand; and Antarctica. In addition to the diverse scientific and societal benefits, the telecommunications industry’s mission of societal connectivity will also benefit because environmental awareness improves both individual cable system integrity and the resilience of the overall global communications network. Keywords: telecommunication cables, SMART sensors, seafloor sensing, earthquake early warning, tsunami detection
    Language: English
    Type: info:eu-repo/semantics/article
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  • 7
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    SMART Subsea Cables for Observing the Earth and Ocean, Mitigating Environmental Hazards, and Supporting the Blue Economy (2022)
    In:  Frontiers in Earth Science
    Details
    Publication Date: 2022-02-18
    Description: The Joint Task Force, Science Monitoring And Reliable Telecommunications (JTF SMART) Subsea Cables, is working to integrate environmental sensors for ocean bottom temperature, pressure, and seismic acceleration into submarine telecommunications cables. The purpose of SMART Cables is to support climate and ocean observation, sea level monitoring, observations of Earth structure, and tsunami and earthquake early warning and disaster risk reduction, including hazard quantification. Recent advances include regional SMART pilot systems that are the first steps to trans-ocean and global implementation. Examples of pilots include: InSEA wet demonstration project off Sicily at the European Multidisciplinary Seafloor and water column Observatory Western Ionian Facility; New Caledonia and Vanuatu; French Polynesia Natitua South system connecting Tahiti to Tubaui to the south; Indonesia starting with short pilot systems working toward systems for the Sumatra-Java megathrust zone; and the CAM-2 ring system connecting Lisbon, Azores, and Madeira. This paper describes observing system simulations for these and other regions. Funding reflects a blend of government, development bank, philanthropic foundation, and commercial contributions. In addition to notable scientific and societal benefits, the telecommunications enterprise’s mission of global connectivity will benefit directly, as environmental awareness improves both the integrity of individual cable systems as well as the resilience of the overall global communications network. SMART cables support the outcomes of a predicted, safe, and transparent ocean as envisioned by the UN Decade of Ocean Science for Sustainable Development and the Blue Economy. As a continuation of the OceanObs’19 conference and community white paper (Howe et al., 2019, doi: 10.3389/fmars.2019.00424), an overview of the SMART programme and a description of the status of ongoing projects are given.
    Type: info:eu-repo/semantics/article
    Format: application/pdf
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  • 8
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    Evidence for the presence of metastable olivine within subducted oceanic lithosphere in the uppermost lower mantle beneath eastern United States (2023)
    In:  XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG)
    Details
    Publication Date: 2023-07-10
    Description: Approximately two-thirds of Earth's outermost shell is composed of oceanic plates that form at spreading ridges and recycle back to Earth's interior in subduction zones. A series of physical and chemical changes occur in the subducting lithospheric slab as the temperature and pressure increase with depth. In particular, olivine, the most abundant mineral in the upper mantle, progressively transforms to its high-pressure polymorphs near the mantle transition zone, which is bounded by the 410 km and 660 km discontinuities. However, whether olivine still exists in the core of slabs once they penetrate the 660 km discontinuity remains debated. Based on SKS and SKKS shear-wave differential splitting times, we report new evidence that reveals the presence of metastable olivine in the uppermost lower mantle within the ancient Farallon plate beneath the eastern United States. Such differential splitting times were attributed to anisotropy in the D” layer. Spatial coherency analysis and consistency between the area with differential splitting times and that with higher than normal seismic velocities favor an uppermost lower mantle origin of the differential times. We estimate that the low-density olivine layer in the subducted Farallon slab may compensate the high density of the rest of the slab associated with the low temperature, leading to neutral buoyancy and preventing further sinking of the slab into the deeper part of the lower mantle.
    Language: English
    Type: info:eu-repo/semantics/conferenceObject
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  • 9
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    A joint investigation of Saturn's deep zonal flow via its gravitational field and Ohmic dissipation (2023)
    In:  XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG)
    Details
    Publication Date: 2023-08-02
    Description: The Cassini Grand Finale provides unprecedented measurements of Saturn's gravity field and magnetic field that are expected to give new insights into the understanding of Saturn's deep zonal flow. In this paper, under the assumption that Saturn's cloud-level wind is confined to a shallow weather layer, we perform a joint inversion of Saturn's deep zonal flow with the observed gravity field and the zonal flow-induced Ohmic dissipation in Saturn's semi-conducting region. We determine that the upper bound of the depth of deep zonal flow is around 7800 km, which is deeper than the previous results fitting with gravity alone, and deeper than other results based on the assumption that the rapid cloud-level winds extended down to Saturn's interior. The resulting zonal flow model is composed of an equatorially symmetric component of speed O(100) m/s and an antisymmetric component of speed O(1) m/s. The analysis of the final zonal flow shows that the zonal flow outside the tangent cylinder has a larger flow speed and scale than that inside the tangent cylinder. In addition, the meridional profile of the deep zonal flow is significantly different from the cloud-level zonal winds.
    Language: English
    Type: info:eu-repo/semantics/conferenceObject
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  • 10
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    Advances and challenges in the implementation of the UNESCO/LOC tsunami ready recognition programme in the pacific and caribbean region (2023)
    In:  XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG)
    Details
    Publication Date: 2023-08-09
    Description: In June 2022 the Intergovernmental Oceanographic Commission (IOC) of UNESCO established the Tsunami Ready Recognition Programme. It is modelled after the US TsunamiReady® Program established in 2001. To receive Tsunami Ready recognition, each community must meet 12 indicators that cover Assessment, Preparedness, and Response. The recognition is renewable every four years. The Tsunami Information Centres in each region (ITIC in the Pacific, CTIC in the Caribbean, IOTIC in the Indian Ocean and NEAMTIC in the Mediterranean and Northeast Atlantic) facilitate the implementation of this Programme. To date, more than 30 communities in 20 countries in the Pacific and Caribbean, and 40 globally have been recognized. ITIC and its Caribbean Office (previously known as the Caribbean Tsunami Warning Program) have been supporting the program in its different phases since 2012. In 2014, Anguilla, a UK Territory in the Caribbean, was the first to be recognized. Currently, with funding from USAID, ITIC, in coordination with CTIC for the Caribbean, is leading TR projects in several SIDS in the Caribbean and Pacific. It is also providing support through capacity development and sharing of best practices worldwide. Additionally, ITIC hosts the website for the Programme (tsunamiready.org). By conducting this work ITIC and CTIC and the countries, communities and other stakeholders will be contributing to the IOC Ocean Decade Tsunami Programme and specifically the goal of 100% of communities at risk are prepared and resilient to tsunamis by 2030. An overview on the implementation process, deliverables and challenges will be presented.
    Language: English
    Type: info:eu-repo/semantics/conferenceObject
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