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  • 1
    Electronic Resource
    Electronic Resource
    The structure of tetramethylammonium μ3-oxo-cyclo-tri-μ-bromo-tri-μ-formato-(O,O')-tris(chloromolybdate)(3 Mo–Mo), [N(CH3)4][{MoBrCl(CHO2)}3O] (1985)
    Oxford [u.a.] : International Union of Crystallography (IUCr)
    Acta crystallographica 41 (1985), S. 888-890 
    Details
    ISSN: 1600-5759
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S010827018500587X
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Structure of tris(diethyldithiophosphato-S,S')-μ-(diethylthiophosphate-O,S)-(oxazole)-μ3-sulfido-tri-μ2-sulfido-cyclo-trimolybdenum(3 Mo–Mo) (1990)
    Oxford [u.a.] : International Union of Crystallography (IUCr)
    Acta crystallographica 46 (1990), S. 2036-2039 
    Details
    ISSN: 1600-5759
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0108270190001299
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  • 3
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    Can an impulsive variation of the solar wind plasma pressure trigger a plasma bubble? A case study based on CSES, Swarm and THEMIS data (2021)
    Elsevier
    Details
    Publication Date: 2021-06-21
    Description: During the August 25, 2018 geomagnetic storm, the new borne CSES-01 satellite and the Swarm A satellite detected a really large equatorial plasma bubble (EPB) in the post-midnight sector over western Africa. We investigated the features of this deep ionospheric plasma depletion using data from the Langmuir probes on-board CSES-01 and Swarm A satellites, and data from the high-precision magnetometer and the electric field detector instruments on-board CSES-01. Using also plasma and magnetic field data from THEMIS-E satellite we found that, during the passage of the magnetic cloud that drove the geomagnetic storm, an impulsive variation lasting about ten minutes characterized the solar wind (SW) pressure. The analysis of the delay time, between the occurrence of such impulsive variation and the detection of the plasma bubble, suggests a possible link between the SW pressure impulsive variation as identified by THEMIS-E and the generation of the EPB as detected by CSES-01 and Swarm A. We put forward the hypothesis that the SW pressure impulsive variation might have triggered an eastward prompt penetrating electric field that propagated from high to equatorial latitudes, overlapping in the nightside region to the zonal westward electric field, causing either a reduction or an inversion, at the base of the EPB triggering.
    Description: Published
    Description: 35-45
    Description: 1A. Geomagnetismo e Paleomagnetismo
    Description: 2A. Fisica dell'alta atmosfera
    Description: 5IT. Osservazioni satellitari
    Description: JCR Journal
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
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  • 4
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    Near-field propagation of tsunamis from megathrust earthquakes (2007)
    AGU
    Details
    Publication Date: 2017-04-04
    Description: We investigate controls on tsunami generation and propagation in the near-field of great megathrust earthquakes using a series of numerical simulations of subduction and tsunamigenesis on the Sumatran forearc. The Sunda megathrust here is advanced in its seismic cycle and may be ready for another great earthquake. We calculate the seafloor displacements and tsunami wave heights for about 100 complex earthquake ruptures whose synthesis was informed by reference to geodetic and stress accumulation studies. Remarkably, results show that, for any near-field location: (1) the timing of tsunami inundation is independent of slipdistribution on the earthquake or even of its magnitude, and (2) the maximum wave height is directly proportional to the vertical coseismic displacement experienced at that location. Both observations are explained by the dominance of long wavelength crustal flexure in near-field tsunamigenesis. The results show, for the first time, that a single estimate of vertical coseismic displacement might provide a reliable short-term forecast of the maximum height of tsunami waves.
    Description: Published
    Description: L14316
    Description: 3.1. Fisica dei terremoti
    Description: JCR Journal
    Description: partially_open
    Keywords: Sumatra ; earthquake ; tsunami ; megathrust ; hazard ; forecasting ; 04. Solid Earth::04.06. Seismology::04.06.03. Earthquake source and dynamics
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
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  • 5
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    Tsunami threat in the Indian Ocean from a future megathrust earthquake west of Sumatra (2007)
    Details
    Publication Date: 2017-04-04
    Description: Several independent indicators imply a high probability of a great (MN8) earthquake rupture of the subduction megathrust 14 under the Mentawai Islands of West Sumatra. The human consequences of such an event depend crucially on its tsunamigenic 15 potential, which in turn depends on unpredictable details of slip distribution on the megathrust and how resulting seafloor 16 movements and the propagating tsunami waves interact with bathymetry. Here we address the forward problem by modelling about 17 1000 possible complex earthquake ruptures and calculating the seafloor displacements and tsunami wave height distributions that 18 would result from the most likely 100 or so, as judged by reference to paleogeodetic data. Additionally we carry out a systematic 19 study of the importance of the location of maximum slip with respect to the morphology of the fore-arc complex. Our results 20 indicate a generally smaller regional tsunami hazard than was realised in Aceh during the December 2004 event, though more than 21 20% of simulations result in tsunami wave heights of more than 5 m for the southern Sumatran cities of Padang and Bengkulu. The 22 extreme events in these simulations produce results which are consistent with recent deterministic studies. The study confirms the 23 sensitivity of predicted wave heights to the distribution of slip even for events with similar moment and reproduces Plafker's rule of 24 thumb. Additionally we show that the maximum wave height observed at a single location scales with the magnitude though data 25 for all magnitudes exhibit extreme variability. Finally, we show that for any coastal location in the near field of the earthquake, 26 despite the complexity of the earthquake rupture simulations and the large range of magnitudes modelled, the timing of inundation 27 is constant to first order and the maximum height of the modelled waves is directly proportional to the vertical coseismic 28 displacement experienced at that point. These results may assist in developing tsunami preparedness strategies around the Indian 29 Ocean and in particular along the coasts of western Sumatra.
    Description: In press
    Description: 3.1. Fisica dei terremoti
    Description: JCR Journal
    Description: reserved
    Keywords: tsunami ; Sumatra ; megathrust ; earthquake ; hazard ; 04. Solid Earth::04.06. Seismology::04.06.03. Earthquake source and dynamics
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: manuscript
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  • 6
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    Tsunami threat in the Indian Ocean from a future megathrust earthquake west of Sumatra (2008)
    Elsevier B.V.
    Details
    Publication Date: 2017-04-04
    Description: Several independent indicators imply a high probability of a great (M 〉 8) earthquake rupture of the subduction megathrust under the Mentawai Islands of West Sumatra. The human consequences of such an event depend crucially on its tsunamigenic potential, which in turn depends on unpredictable details of slip distribution on the megathrust and how resulting seafloor movements and the propagating tsunami waves interact with bathymetry. Here we address the forward problem by modelling about 1000 possible complex earthquake ruptures and calculating the seafloor displacements and tsunami wave height distributions that would result from the most likely 100 or so, as judged by reference to paleogeodetic data. Additionally we carry out a systematic study of the importance of the location of maximum slip with respect to the morphology of the fore-arc complex. Our results indicate a generally smaller regional tsunami hazard than was realised in Aceh during the December 2004 event, though more than 20% of simulations result in tsunami wave heights of more than 5 m for the southern Sumatran cities of Padang and Bengkulu. The extreme events in these simulations produce results which are consistent with recent deterministic studies. The study confirms the sensitivity of predicted wave heights to the distribution of slip even for events with similar moment and reproduces Plafker's rule of thumb. Additionally we show that the maximum wave height observed at a single location scales with the magnitude though data for all magnitudes exhibit extreme variability. Finally, we show that for any coastal location in the near field of the earthquake, despite the complexity of the earthquake rupture simulations and the large range of magnitudes modelled, the timing of inundation is constant to first order and the maximum height of the modelled waves is directly proportional to the vertical coseismic displacement experienced at that point. These results may assist in developing tsunami preparedness strategies around the Indian Ocean and in particular along the coasts of western Sumatra.
    Description: Published
    Description: 61-81
    Description: 4.2. TTC - Scenari e mappe di pericolosità sismica
    Description: JCR Journal
    Description: reserved
    Keywords: tsunami ; Sumatra ; 04. Solid Earth::04.06. Seismology::04.06.11. Seismic risk
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
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  • 7
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    The Egyptian species of Encarsia (Hymenoptera: Aphelinidae): a preliminary review (1999)
    In:  Zoologische Mededelingen (00240672) vol.73, 1-10 (1999) p.131
    Details
    Publication Date: 2007-01-23
    Description: The species of Encarsia Foerster (Hymenoptera: Aphelinidae) known from Egypt are revised. A total of 14 species are treated, including one new species. E. indifferentis Mercet, 1929, is synonymised with E. inaron (Walker, 1839). All species are fully described or diagnosed, and illustrated. Host records, and species-distributions outside Egypt, are given.
    Keywords: Egypt ; Encarsia ; Aleyrodidae ; Aphelinidae ; Diaspididae ; parasitoids ; biological control ; natural enemies ; 42.75
    Repository Name: National Museum of Natural History, Netherlands
    Type: Article / Letter to the editor
    Format: application/pdf
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  • 8
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    Itrax-XRF core scanner - exposure times (2016)
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
    Details
    Publication Date: 2016-03-10
    Repository Name: EPIC Alfred Wegener Institut
    Type: PANGAEA Documentation , notRev
    Format: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
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  • 9
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    Diversity of eukaryotic plankton of aquaculture ponds with Carassius auratus gibelio, using denaturing gradient gel electrophoresis (2018)
    Details
    Publication Date: 2021-05-19
    Description: PCR-denaturing gradient gel electrophoresis (DGGE) and canonical correspondence analysis (CCA) were used to explore the relationship between eukaryotic plankton community succession and environmental factors in two aquaculture pond models with gibel carp Carassius auratus gibelio. The main culture species of pond 1 were gibel carp and grass carp, and the combined density was 46224 fingerling/ha (gibel carp/grass carp/silver carp/bighead carp, 17:4:6:1). The main culture species of pond 2 was gibel carp, and the combined density was 37551 fingerling/ha (Gibel carp/silver carp/bighead carp, 52:1:1). Water samples were collected monthly. The results showed that the annual average concentrations of TP and PO4-P in pond 1were significantly higher than pond 2 (p〉0.05). The concentration of chlorophyll a (chl a) has no significantly difference between pond 1 and pond 2. DGGE profiles of 18S rRNA gene fragments from the two ponds revealed that the diversity of eukaryotic plankton assemblages was highly variable. 91 bands and 71 bands were detected in pond 1 and pond 2, respectively. The average Shannon–Wiener index of pond 1 was significantly higher than pond 2. Canonical correspondence analysis (CCA) revealed that temperature played a key role in the structure of the eukaryotic plankton community in both ponds, but the nutrient concentration did not affect it. Our results suggest that DGGE method is a cost-effective way to gain insight into seasonal dynamics of eukaryotic plankton communities in culture ponds, and the increase in the number of filter-feeding silver carp and bighead carp could increase the diversity of the eukaryotic plankton community.
    Description: Published
    Keywords: Genetics ; 18S rRNA genes ; PCR-denaturing gradient gel electrophoresis ; CCA ; Eukaryotic plankton community ; Environmental factors
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp.1540-1555
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  • 10
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    Spatio-temporal patterns of crab fisheries in the main bays of Guangdong Province, China (2018)
    Details
    Publication Date: 2021-05-19
    Description: Using a semi-balloon otter trawl, crab fisheries in the main bays of Guangdong Province, China, were carried out seasonally . A total of 70 species were found, all belonging to the South China Sea Faunal sub region in the tropical India-West-Pacific Faunal Region. The clustering and nMDS ordination analysis revealed the existence of three groups. Group 1 included Hailing Bay and four bays to its east where typical species were Portunus sanguinolentus, P. pelagicus and Charybdis feriatus. Group 2 included Shuidong Bay and Leizhou Bay where typical species were P. sanguinolentus, P. pelagicus and P. hastatoides. Group 3 was Liusha Bay where typical species were C. feriatus, C. vadorum and C. truncate. The spatial and temporal variations of crab fisheries were mainly associated with characteristics of the sediment, seasonal changes and their own biological characteristics, but not significantly with water depth, temperature, salinity, and the “mid-summer fishing moratorium” conservation measure.
    Description: Published
    Keywords: Charybdis feriatus ; Portunus sanguinolentus ; P. pelagicus ; C. truncate ; C. vadorum ; C. feriatus ; Crab fisheries ; Spatial and temporal distribution
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp.425-436
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