ALBERT

Description: Questo libro ci presenta una visione d’insieme sul mondo dell’openness, dal software open source ai servizi cloud, passando per le licenze Creative Commons e gli open data. Tra i primi ad averne fatto l’oggetto principale della propria attività scientifica e professionale, per la prima volta nel panorama italiano l’autore ci offre un quadro sistematico di come realizzare l’apertura e la condivisione di beni intellettuali che altrimenti rimarrebbero riservati. Un fenomeno che, da marginale, è divenuto centrale in vari contesti. L’opera si presenta al lettore in modo chiaro ma non banale. L’autore affronta temi complessi con stile lineare e comprensibile anche ai digiuni di diritto, ma conservando un necessario rigore scientifico, fornendo gli elementi per una teoria generale per la creazione e la promozione di beni intellettuali comuni, o commons. Un approccio rivoluzionario a questa branca del diritto, che capovolge l’uso di strumenti ben noti come il copyright e le licenze, richiedeva l’intervento di un giurista fuori dagli schemi e anticonformista come Piana.

Description: O tema do livro é a presença do Serviço Social na política educacional, como propositor e elaborador de projetos, levando-se em consideração o trabalho profissional realizado na educação em diversos estados e municípios brasileiros, desde a origem da profissão. A investigação foi teve como suporte a pesquisa bibliográfica, documental e de campo, realizada na Secretaria de Educação do município de Barretos/SP. A autora salienta a importância do Serviço Social em diversas cidades brasileiras e os projetos de lei existentes como proposta de se efetivar legalmente a atuação dos assistentes sociais na Educação. Ressalta ainda a crescente participação dos profissionais da área nas esferas estaduais e municipais, onde atuam em equipes interdisciplinares na elaboração de diretrizes e planos para uma educação de acesso a todos os cidadãos.

Description: Questo libro ci presenta una visione d’insieme sul mondo dell’openness, dal software open source ai servizi cloud, passando per le licenze Creative Commons e gli open data. Tra i primi ad averne fatto l’oggetto principale della propria attività scientifica e professionale, per la prima volta nel panorama italiano l’autore ci offre un quadro sistematico di come realizzare l’apertura e la condivisione di beni intellettuali che altrimenti rimarrebbero riservati. Un fenomeno che, da marginale, è divenuto centrale in vari contesti. L’opera si presenta al lettore in modo chiaro ma non banale. L’autore affronta temi complessi con stile lineare e comprensibile anche ai digiuni di diritto, ma conservando un necessario rigore scientifico, fornendo gli elementi per una teoria generale per la creazione e la promozione di beni intellettuali comuni, o commons. Un approccio rivoluzionario a questa branca del diritto, che capovolge l’uso di strumenti ben noti come il copyright e le licenze, richiedeva l’intervento di un giurista fuori dagli schemi e anticonformista come Piana.

Description: The study aims to analyse the vibrations induced by traffic on the Villa Farnesina in Rome. The ancient building was designed and erected by the architect Baldassarre Peruzzi and the walls, vaults and lodges were decorated with frescoes attributable to Raphael and other relevant Italian Renaissance painters. Villa Farnesina is located near the Lungotevere road, therefore it suffers the dangerous effects due to the urban traffic even with heavy vehicles passing, so much so that in the early seventies an anti-vibration paving was built. A six-month geophysical monitoring made it possible to analyse the propagation of the waves on the building, characterizing the vibration due to the current traffic level. The results show the vibration levels recorded on the different floors of the building.

Description: Published

Description: International Conference on Metrology for Archaeology and Cultural Heritage (MetroArchaeo 2021) 20-22 October 2021, Milan, Italy

Description: 7A. Geofisica per il monitoraggio ambientale

Description: 7SR AMBIENTE – Servizi e ricerca per la società

Description: We compute a high-resolution topographic model of the Moho beneath the fault system activated during the 2016–2017 Central Italy seismic sequence, using Receiver Function (RF) analyses. We document that Ps conversions recorded in RF data-set varies abruptly at very short distance across the crustal lineament called Ancona-Anzio Line (AAL). Moho depth varies from about 25-30 km in the Tyrrhenian domain on the West to 35- 40 km in the Adriatic domain in the East. Where the two domains are juxtaposed along the AAL, Moho depth values cluster around 50 km depth, in a stripe-like area 20 km wide. Such unique feature marks the deformation zone in the lithosphere and testifies the abrupt change in delamination style in the two sectors of the Apennines. Intermittent large normal faulting earthquakes driven by across-belt extension break through such inherited strong structural changes, conditioned by localized barriers to fluids migration and overpressuring.

Description: Published

Description: 229237

Description: 1T. Struttura della Terra

Description: 4T. Sismicità dell'Italia

Description: JCR Journal

Description: We use PoroTomo experimental data to compare the performance of distributed acoustic sensing (DAS) and geophone observations in retrieving data to execute standard subsurface mapping and seismic monitoring activities. The PoroTomo experiment consists of two “seismic systems”: (a) a 8.6 km long optical fibre cable deployed across the Brady geothermal field and covering an area of 1.5 × 0.5 km with 100 m long segments and (b) a co-located array of 238 geophones with an average spacing of 60 m. The Poro- Tomo experiment recorded continuous seismic data between 10 and 25 March 2016. During this period, a Ml 4.3 regional event occurred in the southeast, about 150 km away from the geothermal field, together with several microseismic local events related to the geothermal activity. The seismic waves generated from such seismic events have been used as input data in this study to tackle similarities and differences be- tween DAS and geophone recordings of such wavefronts. To assess the quality of data for subsurface mapping tasks, we measure the propagation of the P wave generated by the regional event across the geothermal field in both seismic systems in term of relative time delays, for a number of con- figurations and segments. Additionally, we analyse and com- pare the amplitude and the signal-to-noise ratio (SNR) of the P wave in the two systems at high resolution. For testing the potential of DAS data in seismic event locations, we first per- form an analysis of the geophone data to retrieve a reference location of a microseismic event, based on expert opinion. Then, we a adopt different workflow for the automatic lo- cation of the same microseismic event using DAS data. To assess the quality of the data for tasks related to monitoring distant events, we retrieve both the propagation direction and apparent velocity of the wave field generated by the Ml 4.3 regional event, using a standard plane-wave-fitting approach applied to DAS data. Our results indicate that (1) at a local scale, the seismic P-wave propagation (i.e. time delays) and their characteris- tics (i.e. SNR and amplitude) along a single cable segment are robustly consistent with recordings from co-located geo- phones (delay times δt ∼ 0.3 over 400 m for both seismic systems); (2) the DAS and nodal arrays are in mutual agree- ment when it comes to site amplifications, but it is not im- mediately clear which geological features are responsible for these amplifications. DAS could therefore hold potential for detailed mapping of shallow subsurface heterogeneities, but with the currently available information of the Brady Hot Springs subsurface geology, this potential cannot be quanti- tatively verified; (3) the interpretation of seismic wave prop- agation across multiple separated segments is less clear due to the heavy contamination of scattering sources and local velocity heterogeneities; nonetheless, results from the plane- wave-fitting approach still indicate the possibility for a con- sistent detection and location of the distant event; (4) auto- matic monitoring of microseismicity can be performed with DAS recordings with results comparable to manual analysis of geophone recordings in the case of events within or close to the DAS system (i.e. maximum horizontal error on event location around 70 m for both geophone and DAS data); and (5) DAS data preconditioning (e.g. temporal subsampling and channel stacking) and dedicated processing techniques are strictly necessary for making seismic monitoring proce- dures feasible and trustable.

Description: Published

Description: 449–468

Description: 1T. Struttura della Terra

Description: JCR Journal

Description: In the frame of FocusX2 project INGV (Osservatorio Nazionale Terremoti and Osservatorio Etneo) and UniCal (Laboratorio di Sismologia) are deploying, from the end of 2021 to January 2023 a temporary seismic network for an active/passive seismological experiment to record regional and global seismicity in the Ionian Sea. The goal of this experiment is to improve the detection of seismicity in the Ionian Sea area and the accuracy of the locations; to better define the crustal structure of the region and find patterns related to fault systems. The seismicity in the area is possibly the result of two types of tectonic activity at different depths: a gently NW dipping subduction interface of the Calabrian subduction zone, and the strike-slip fault systems in the Ionian Sea, well expressed in the morpho-bathymetry and observed in previous seismic profiles. The deployment of 13 temporary land stations, FocusX temporary land (network code 1J) https://doi.org/10.13127/SD/O5QWM6WJCD along the coasts of eastern Sicily and SW Calabria, is going to complement the permanent networks (network codes IV, MN and IY); in the same period OBS stations are deployed at sea: FocusX temporary OBS-network (network code XH). The land stations are equipped with two different type of digitizers: Reftek 130 (12), and SaraSL06 (2); and with three different type of velocimeters: Trillium 120C (10), Le 5s (2) and ss08 60s (2). Continuous data are transmitted in real time at the INGV Rome acquisition system, used in the seismic surveillance, archived and distributed in EIDA https://eida.ingv.it/it/. In the deployment period 23rd December 2021 - 9th May 2022 regional seismicity (area between Lat 36.5-38.2 Lon 14.5-16.0) include 390 events located by the INGV seismic surveillance system, two of them with magnitude larger than 4.0 as well as 56 teleseismic earthquakes with magnitude larger than magnitude 6.0, two of them larger than 7.0. The two local events with M〉4.0 and some of their aftershocks, were analyzed by the analysts of the Italian Seismic Bulletin including all the stations of the FXland 1J network.

Description: Published

Description: Catania

Description: 4T. Sismicità dell'Italia

Description: A catalogue of precisely located micro-seismicity is fundamental for investigating seismicity and rock physical properties in active tectonic and volcanic regions and for the definition of a ‘baseline’ seismicity, required for a safe future exploitation of georesource areas. In this study, we produce the first manually revised catalogue of micro-seismicity for Co. Donegal region (Ireland), an area of about 50K M2 of on-going deformation, aimed at localizing natural micro-seismic events occurred between 2012 and 2015. We develop a stochastic method based on a Markov chain Monte Carlo (McMC) sampling approach to compute earthquake hypocentral location parameters. Our results indicates that micro-seismicity is present with magnitudes lower than 2 (the highest magnitude is 2.8).The recorded seismicity is almost clustered along previously mapped NE-SW trending, steeply dipping faults and confined within the upper crust (focal depth less than 10 km). We also recorded anthropogenic seismicity mostly related to quarries' activity in the study area.

Description: Published

Description: 62-76

Description: OST1 Alla ricerca dei Motori Geodinamici

Description: JCR Journal

Description: We investigate the seismic structure of the mantle wedge of the Apennines subduction zone (Central Mediterranean) using teleseismic receiver function (RF). We inverted RF for both isotropic and anisotropic properties of the mantle wedge, from below the overriding Moho to the “plate boundary”, i.e. the interface that separate the slab from the mantle wedge. Given the distribution of the seismic network, we are able to map out the change in the elastic properties at the transition between southern apennines and the Calabrian arc, given by the change in the subduction style (i.e from the subduction of continental materials to oceanic plate). We found that the anisotropy in the mantle wedge is similar between all seismic stations, generally highly anisotropic (〉 10%), with a direction of the symmetry axis that rotates clockwise from North to South, following the Calabrian arc geometry and likely indicating the mantle flow driven by the slab retreat. The elastic properties of the subducted crust are more heterogeneous. To the North, the subducted crust shows a highly anisotropic (〉 10%) behavior, and it occurs at larger depth (around 70 km depth), where to the South anisotropy is less intense (around 7%) and the subducted crust is shallower (around 60 km depth). These results point out a change in the subduction style that can be given by either a change in the metamorphic phase (more evolved blueschist facies stage to the North, initial greenschist facies stage to the South) or a different origin for the subducted materials (continental to the North and oceanic to the South). The differences in the anisotropic behavior of the subducted crust are reflected in the topography of the plate boundary, which becomes shallower from North to South, suggesting the existence of either a step in the slab topography or a more gentle ramp.

Description: Published

Description: 102004

Description: OST1 Alla ricerca dei Motori Geodinamici

Description: JCR Journal