136,151 research outputs found

    Seismic stratigraphy and marine magnetics of the Naples Bay (Southern Tyrrhenian sea, Italy): the onset of new technologies in marine data acquisition, processing and interpretation

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    Seismic stratigraphy and marine magnetics in the case histories of the Somma-Vesuvius volcanic complex, Phlegrean Fields offshore and Ischia and Procida islands offshore (Naples Bay, Southern Tyrrhenian sea) are here discussed. Detailed geo-volcanologic setting of these areas is presented to give a better framework of the presented data. Seismo-stratigraphic techniques and methodologies are discussed, focussing, in particular, on the Naples area, where the Quaternary volcanic activity prevented the application of classical stratigraphic concepts, due to the occurrence of interlayered sedimentary sequences and intervening volcanic bodies (volcanites and volcaniclastites). The onset of new technologies in marine data acquisition, processing and interpretation is also discussed taking into account some historical aspects

    Gravity instabilities in the Dohrn canyon (Bay of Naples, Southern Tyrrhenian sea): potential wave and run-up (tsunami) reconstruction from a fossil submarine landslide

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    We discuss a mathematical model for wave and run-up generated submarine landslides in the canyons of the Bay of Naples (Magnaghi-Dohrn canyon system). The morpho-bathymetry and submarine gravity instabilities of such incisions have been investigated through the interpretation of a high resolution DEM. The canyons are located in a sector of the bay where there is a variable interaction of volcanic activity (Phlegrean Fields and Ischia and Procida islands) with sedimentary processes due to the Sarno-Sebeto rivers. At present the Naples canyon-system is inactive, as is shown by the Holocene sedimentary drapes deposited during the present sea-level highstand but gravity instabilities occurred in the recent past at the canyons' heads. In particular the Dohrn Canyon is characterized by a double regressive head, while the Magnaghi Canyon shows a trilobate head, formed by the junction of three main tributary channels and coincident with the retreat of the shelf break around the 140 m isobath. The results of a simulation of failures in the above source areas show that the amplitude of wave run-up, expressed in terms of sea floor depth percentage, may range up to 2.5% of the water depth at the sea bottom

    The Naples Monitor

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    Weekly newspaper from Naples, Texas that includes local, state and national news along with advertising

    The Naples Monitor

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    Weekly newspaper from Naples, Texas that includes local, state and national news along with advertising

    The Naples Monitor

    No full text
    Weekly newspaper from Naples, Texas that includes local, state and national news along with advertising

    The Naples Monitor

    No full text
    Weekly newspaper from Naples, Texas that includes local, state and national news along with advertising

    A crossroads for the empire. Naples in the Second Italo-Ethiopian War (1935-1936)

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    In this essay, the author analyzes the fascist military campaign against Ethiopia from a peculiar bottom-up perspective, or rather, from the city of Naples. Such an approach moves from the specific role of Naples as a crossroads both in the preparation phase and in that of open warfare. This logistical role makes the city an extraordinary observation point on the flows of soldiers, workers, animals, and vehicles that passed through its port. The essay looks inside the fascist war machine by using local and peripheral institutional sources. In this way, it is possible to highlight capacities and limits of mechanisms such as the institutional network set up to manage the logistical flows, the troop cantonment, and the selection and dispatch of militarized workers in the context of the emerging fascist empire

    Cathedral of Naples reconstruction

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    Exterior, entrance facade, detailOriginally built, 14th centur

    Mitigation of seismic hazard of a megacity: the case of Naples

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    The seismic ground motion of a test area in the eastern district of Naples was computed with a hybrid technique based on the rnode surnrnation and the finite difference methods. This technique allowed the realistic modelling of source and propagation effects, including local soil conditions. In the modelling, as seismic source we considered the 1980 Irpinia earthquake, a good example of strong shaking for the area of Naples, located about 90 km from the source. Along a profile through Naples, trencling N86°W, the subsoil is mainly formed by alluvial (ash, stratified sand and peat) and pyroclastic materials overlying a pyroclastic rock (yellow Neapolitan tuff) representing the Neapolitan bedrock. The detailed information available on the subsoil mechanical properties and its geometry warrants the application of the sophisticated hybrid technique. For SH waves, a comparison was made between a realistic 2-D seismic response and a standard I-D response, based on the vertical propagation of waves in a plane layered structure. As expected the sedimentary cover caused an increase in the signal's amplitudes and duration. If a thin uniform peat layer is present, the amplification effects are reduced, and the peak ground accelerations are similar to those observed for the bedrock model. This can be explained by the backscattering of wave energy at such a laqer. The discrepancies evidenced between the l -D and the 2-D seismic response suggest that serious caution must be taken in the formulation of seismic regulations. This is particularly true in the presence of the thin peat laqer where the misinatch between the l -D and the 2-D amplification functions is particularly evident in correspondence of the dominant peak and of the second significant peak

    SEBAC 2017 and the 2022 retirement wave / by John D. Moran, principal analyst, and Anthony Naples, associate budget analyst

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    1 online resource (4 pages)"December 29, 2020."Discusses why state officials are anticipating a wave of state employee retirements before July 1, 2022, the date when changes to state employee retirement benefits take effect, and uses historical data to provide an estimate of how many employees may retire before July 1, 2022. Also describes steps the state is taking to prepare for the retirement
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