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  • 1
    Series available for loan
    Series available for loan
    Kjeller : The Research Council of Norway
    Associated volumes
    Call number: S 99.0085(3-74/75)
    In: NORSAR Scientific Report
    Type of Medium: Series available for loan
    Pages: IV, 57 S.
    Series Statement: NORSAR Scientific Report 74/75,3
    Location: Lower compact magazine
    Branch Library: GFZ Library
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  • 2
    Publication Date: 2008-07-31
    Print ISSN: 0920-5861
    Electronic ISSN: 1873-4308
    Topics: Chemistry and Pharmacology , Physics
    Published by Elsevier
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  • 3
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    African Studies Centre | Leiden, Netherlands
    Publication Date: 2021-05-19
    Description: This paper aims at investigating if and how Marine Protected Areas (MPA) benefit the surrounding communities. The food security status of five fishing communities surrounding the Kisite Marine National Park on the south coast of Kenya was examined. The underlying assumption was that if MPAs benefit the surrounding fisheries, it would show in the socio-economic status of the fishing communities. Effects of the presence of the park were detected in several ways. First, it was found that households depending for their livelihoods on tourism around the parks were more food secure than the others. Secondly, it was established that the economic structure of the communities was affected by the distance of the communities from the main tour operators linked to the park. Finally, the households fishing nearer the protected reefs were found to be more food secure than others. However, these benefits of the park are constrained by the distance of the communities from the park.
    Description: Published
    Keywords: Tourism ; Recreation ; Socioeconomic aspects ; Protected resources ; Coral reefs ; Common property resources ; Marine parks
    Repository Name: AquaDocs
    Type: Report Section , Not Known
    Format: pp.201-214
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  • 4
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    In:  http://aquaticcommons.org/id/eprint/9227 | 115 | 2012-11-29 10:25:18 | 9227 | WorldFish Center
    Publication Date: 2021-07-03
    Description: Assessment and management of risk is needed for sustainable use of genetically modified aquatic organisms (aquatic GMOs). A computer software package for safely conducting research with genetically modified fish and shellfish is described. By answering a series of questions about the organism and the accessible aquatic ecosystem, a researcher or oversight authority can either identify specific risks or conclude that there is a specific reason for safety of the experiment. Risk assessment protocols with examples involving transgenic coho salmon, triploid grass carp and hybrid tilapia are described. In case a specific risk is identified, the user is led to consider risk management measures, involving culture methods, facilities design and operations management, to minimize the risk. Key features of the software are its user-friendly organization; easy access to explanatory text, literature citations and glossary; and automated completion of a worksheet. Documented completion of the Performance Standards can facilitate approval of a well designed experiment by oversight authorities.
    Keywords: Fisheries ; Information Management ; Genetic engineering ; Biotechnology ; Experimental research ; Risks ; Computer programs ; Transgenic fish
    Repository Name: AquaDocs
    Type: article
    Format: application/pdf
    Format: application/pdf
    Format: 12-17
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  • 5
    Electronic Resource
    Electronic Resource
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 112 (2000), S. 10460-10466 
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: The structure of oxygen adsorbed on Ir{100} has been determined by density functional theory slab calculations and quantitative low energy electron diffraction. The two studies produce essentially identical results, experiment providing a benchmark for the first principles calculation, while the latter provides a more complete understanding of the structure. Oxygen forms a (1×2) overlayer with adsorption on the bridge site: an unusual result for oxygen. There is a significant row pairing of the iridium atoms in the surface layer which strongly stabilizes the structure, and is one of the main factors favoring the bridge site occupation and the (1×2) configuration. © 2000 American Institute of Physics.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 112 (2000), S. 8631-8636 
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: An unusually high-peak-temperature desorption state of O2 from Pt{110} (1×2) has been characterized in temperature programmed desorption spectra after O2 adsorption from a supersonic beam at a translational energy of 190 meV and at nozzle temperatures, Tn, greater than 870 K. It shows the characteristics of a subsurface atomic state of oxygen. From the nozzle temperature dependence of the rate of population of this state we conclude that it is formed exclusively from electronically excited O2 1Δg generated in the molecular beam source. © 2000 American Institute of Physics.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 110 (1999), S. 12082-12088 
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: The chemisorption of NO on Pt{110}-(1×1) and -(1×2) has been studied using density functional theory slab calculations with the generalized gradient corrections. On both surface phases the monomeric species is the most stable and the short-bridge sites are energetically the most favorable adsorption sites. Monomeric NO is adsorbed upright with its molecular axis normal, bonded to the surface through the N atom. On the (1×2) surface at high coverage a polymeric (NO)x chain structure is identified; this may well correspond to the structure experimentally observed at high coverage on the (1×2) surface formed after heating a multilayer to temperatures between 80 K and 200 K, characterized by an NO IR band at 1760 cm−1. © 1999 American Institute of Physics.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 109 (1998), S. 10996-11009 
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: The kinetics of CO chemisorption on both the (1×5) and (1×1) surfaces of Ir{100}, including the CO-induced surface restructuring process, have been studied by measuring the sticking probability as a function of the surface temperature and beam flux. Due to competition between desorption from the (1×5) phase and growth of (1×1) islands, the sticking probability on the initial (1×5) surface is strongly flux-dependent at surface temperatures Ts in the range 480≤Ts≤510 K. It is shown that this is due to a strongly nonlinear dependence of the (1×1) growth rate on the local CO coverage on the (1×5) substrate, with an apparent reaction order of around 5. Desorption energies and pre-exponentials of desorption for CO from both the (1×1) and (1×5) surfaces have been determined by means of a modified lifetime measurement technique. Equilibrium coverages as well as isothermal desorption rates of CO were determined for both surface phases. The zero coverage desorption energy of CO from the (1×1) substrate is 196±5 kJ/mol and from the (1×5) surface it is around 150 kJ/mol. This difference in adsorption energies is the driving force for the CO-induced (1×5) to (1×1) phase transition. TEAS data show that the local CO coverage on the growing (1×1) islands during the phase transformation is 0.5 ML. © 1998 American Institute of Physics.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 107 (1997), S. 5609-5612 
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: Clear evidence for the nonthermal acoustic wave enhancement of a catalytic reaction over a single crystal metal surface under controlled conditions is provided in this Letter. Data demonstrating a fourfold increase in the rate of CO oxidation over a thin Pt{110} catalyst bonded onto the surface of a piezoelectric interdigital transducer is discussed here together with a possible mechanism for this effect. © 1997 American Institute of Physics.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 106 (1997), S. 1210-1215 
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: Ab initio total energy calculations using density functional theory with the generalized gradient approximation have been performed for the chemisorption of oxygen atoms on a Pt{100}-(1×1) slab. Binding energies for the adsorption of oxygen on different high-symmetry sites are presented. The bridge site is the most stable at a coverage of 0.5 ML, followed by the fourfold hollow site. The atop site is the least stable. This finding is rationalized by analyzing the "local structures" formed upon oxygen chemisorption. The binding energies and heats of adsorption at different oxygen coverages show that pairwise repulsive interactions are considerably stronger between oxygen atoms occupying fourfold sites than those occupying bridge sites. Analysis of the partial charge densities associated with Bloch states demonstrates that the O–Pt bond is considerably more localized at the bridge site. These effects cause a sharp drop in the heats of adsorption for oxygen on hollow sites when the coverage is increased from 0.25 to 0.5 ML. Mixing between oxygen p orbitals and Pt d orbitals can be observed over the whole metal d-band energy range.
    Type of Medium: Electronic Resource
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