3,218 research outputs found

    DSGSD developed along the Cenischia-Nizza tectonic system in the Rodoretto Valley (Western Alps)

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    The Rodoretto Valley, a left tributary of the Germanasca Valley, is located in the Western Alps (NW Italy) from 1200 m to 2900 m a. s. l. This area is shaped by glaciers, and subsequently by watercourses, in the Greenstone and Schist Complex (Penninic Domain), near the N-S tectonic contact with the Dora Maira Massif. The Rodoretto Valley is extensively involved by deep seated gravitational slope deformation (DSGSD), responsible for developing of many gravitational morpho-structures (as doubled ridges, minor scarps, trenches) and landslide accumulations (Forno et al.,2012; 2013). The deep-seated gravitational slope deformation effects on the Quaternary sediment facies and distribution were particularly investigated. The main conditions that favoured the DSGSD evolution are: - high relief energy; - strong shaping by glaciers; - great deepening by watercourses; - bad geomechanical conditions of the bedrock, characterized by a high fracturing degree. Research was conducted through the traditional geological survey, with high detail, and using also geomatics techniques in order to produce a geological and morphological map. UAV (Unmanned Aerial Vehicle) flight was carried out for DSM (digital surface model) images generation, combined with topographic surveys of terrain employing total station and GNSS (Global Navigation Satellite System) instruments for georeferencing the images. These geomatics techniques had greatly helped in the detailed geological mapping in largely inaccessible areas. The combined geological and geomatics surveys lead to suppose that the critical geomechanical conditions of bedrock are strictly related to the crossing of two major tectonic discontinuity systems with N-S (Cenischia-Nizza System) and NNW-SSE trend respectively, suggesting a link with the active tectonics. The distribution of many structural and morphostructural elements suggests the presence of sliding surfaces connected to the DSGSD, that can probably lie below the current Rodoretto Valley floor, as a result of the great deepening of the main Germanasca Valley. DSGSD susceptibility is a mix of predisposing factors reducing the slopes stability. The major factors that influence the DSGSD processes are represented by slope gradient and rainfall aggressiveness (Taddia et al., 2015). The knowledgeof the interaction among the predisposing factors may provide powerful information about the location of likely future landslides phenomena, essential for land planning. Forno M.G., Lingua A., Lo Russo S. & Taddia G. 2012. Morphological Features of Rodoretto Valley Deep-Seated Gravitational Slope Deformations. Amer. Journ. Environ. Sci, 8(6), 648-660. Forno M.G., Lingua A., Lo Russo S., Taddia G. & Piras M. 2013. GSTOP: a new tool for 3D Geomorphological survey and mapping, Eur. Journ. Remote Sensing, 46(1), 234-249. Taddia G., Gnavi L., Piras M., Forno M.G., Lingua A. & Lo Russo S. 2015. Landslide susceptibility zoning using GIS tools: an application in the Germanasca Valley (NW Italy). In: Engineering Geology for Society and Territory, 2 (Landslide Processes), Springer International Publishing, 177-181

    L’impatto della pandemia sulla sostenibilità e resilienza degli spazi di coworking

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    Il capitolo descrive i risultati di due survey condotte da Italiancoworking e indirizzate agli spazi di lavoro condiviso in Italia, rispettivamente nel 2020 (ICSurvey 2020) e nel 2021 (ICSurvey 2021) al fine di comprendere lo “stato di salute” degli spazi nel periodo pandemico. Attenzione è rivolta alle misure da essi adottate per fronteggiare la pandemia e aumentare il grado di resilienza

    Italian Experiences in Coworking Spaces During the Pandemic

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    This chapter describes the results of the survey conducted by Italiancoworking1 and addressed to CSs in Italy in 2020 (IC-Survey2020), and the survey conducted by Italiancoworking together with DAStU and the Cost Action CA18214 in 2021 (IC-Survey 2021). The measures the CSs have adopted to cope with the pandemic are described, and whether and how the CSs have increased the resilience is explored

    Marchitelli, E. Russo, “La questione mente-corpo. Radici storiche e sviluppo del sè”, in Borderline: psicoterapia e psicofarmacologia, M. Baldassarre, M. T. Daniele, G. Godino (a cura di), 2011, Alpes, Roma

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    Viene analizzata la letteratura riguardante lo sviluppo dei costrutti di sé corporeo e immagine del corpo. Viene affrontata, da un punto di vista evolutivo, la questione dello sviluppo di tali dimensioni all'interno della personalità

    Binding abilities of a chiral calix[4]resorcinarene: a polarimetric investigation on a complex case of study

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    Polarimetry was used to investigate the binding abilities of a chiral calix[4]resorcinarene derivative, bearing L-proline subunits, towards a set of suitably selected organic guests. The simultaneous formation of 1:1 and 2:1 host–guest inclusion complexes was observed in several cases, depending on both the charge status of the host and the structure of the guest. Thus, the use of the polarimetric method was thoroughly revisited, in order to keep into account the occurrence of multiple equilibria. Our data indicate that the stability of the host–guest complexes is affected by an interplay between Coulomb interactions, π–π interactions, desolvation effects and entropy-unfavorable conformational dynamic restraints. Polarimetry is confirmed as a very useful and versatile tool for the investigation of supramolecular interactions with chiral hosts, even in complex systems involving multiple equilibria

    La ragione degli Altri. La Psichiatria alternativa in Italia e nel mondo. Storia, teoria e pratica.

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    Nel volume sono pubblicati 4 saggi di L. Onnis: 1) Saggio introduttivo: pp. 13-43; 2) Storicità della follia e della sua gestione: pp. 51-93; 3) Ragioni e ambiguità dell'antipsichiatria: pp. 304-323;M 4) La nuova psichaitria francese tra razionalizzazione e alternative: pp. 418-437

    Investigation of Gravitational Energy Harvesters for IoT Power Supply in Freight Train Monitoring

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    Recent advances in technology make energy harvesting a promising power supply solution for IoT devices. An electromagnetic gravitational energy harvester prototype for railway monitoring applications is proposed. The main components of the autonomous IoT sensorized node are described. Laboratory dynamic tests and simulations show the harvester resonance frequency and maximum scavenged power for supplying the node. Experimental vertical vibration data collected onboard of a freight railcar are used for harvester frequency tuning and real performance evaluation. The node power management and rectification system is studied to choose the best smoothing capacitor. Experimental battery charge tests under the real onboard excitations are performed and the duty cycle of the autonomous IoT node is defined

    Open-Loop Groundwater Heat Pump System: dynamic behavior and cross-correlation between the groundwater temperature and electrical conductivity

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    Groundwater Heat Pumps Systems (GWHPs), utilizing relatively stable groundwater temperature, are an efficient use of natural energy, can achieve a higher performance coefficient, and a thermal plume of colder or warmer re-injected groundwater, known as the Thermal Affected Zone (TAZ), develops. The plume propagation occurs primarily through advection (Lo Russo & Taddia, 2010), and tends to “degrade” following conductive heat transport, and convection within moving water (Hecht-Mendez et al., 2010). Plumes of colder or warmer re-injected groundwater are considered a potential anthropogenic geothermal resource or pollution. In fact, a thermal plume might pose a risk to groundwater use downgradient. This study is aimed to explore the auto and cross-correlation between some groundwater parameters (temperature, hydraulic levels and electrical conductivity) measured through specific multiparameter probes in a real field test-site. The data under consideration derived from the groundwater monitoring in the surrounding area of an injection well connected to an open-loop GWHP plant installed in the “Politecnico di Torino” (NW Italy). The plant is used for cooling some of the university buildings. Groundwater pumping and injection interfere only with the upper unconfined aquifer. The GWHP plant is constituted by a 40-m deep pumping well (P2) and a downgradient 47-m deep injection well (P4). A 35-m deep piezometer (S2) is located downgradient respect P4. The abstraction and injection well as the piezometer are screened along the whole saturated zone of the exploited unconfined aquifer. The continuous monitoring of the hydraulic levels, electrical conductivity EC and temperature T in P2, P4 and S2 is performed along the whole year, including the period of the switching off of the cooling plant. The analysis of correlation presented concentrates on the hourly data collected in the summer 2015. The GWHP plant started its operation on April 8th, 2015 and switch off on September, 3th 2015. Data collected in P4 and S2 are important to understand the subsurface heat transport phenomena and the possible trend between EC and T. The study of these correlations can be useful to characterize the heat transport in the aquifer and detecting the real velocity of migration of the thermal plume under the real operating conditions. Lo Russo S. & Taddia G. 2010. Advective heat transport in an unconfined aquifer induced by the field injection of an open-loop groundwater heat pump. American Journal of Environmental Sciences 6(3), 253-259 DOI: 10.3844/ajessp.2010.253.259 Hecht-Mendez J., Molina-Giraldo N., Blum P. & Bayer P. 2010. Evaluating MT3DMS for heat transport simulation of closed geothermal systems. Ground Water. DOI: 10.1111/j.1745-6584.2010.00678.
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