1,750 research outputs found
PIL E ATTIVITÀ ILLECITE IL PARADOSSO DELLA CRESCITA ECONOMICA.
No full textProstituzione, contrabbando, droga, ecco la nuova ricetta della crescita economica. Lo scopo di questo confronto, anche un po' provocatorio, è quello di studiare il nuovo calcolo del PIL e di analizzare le diverse sfaccettature di tale calcolo. Comprendere il nuovo computo del PIL è importante anche per le valutazioni digli andamenti dell'economia, che vengono presi in considerazione, ad esempio, dall'Osservatorio Commercialisti, oppure per il reale calcolo della pressione fiscale. Da un punto di vista giuridico si crea una certa ambiguità tra illecito ed elementi computabili nella ricchezza di un Paese. Per tali ragioni si rende necessaria una riflessione su cosa sia eticamente e giuridicamente lecito e su cosa si basi la ricchezza di un Paes
Introduction by Manuela Gieri
No full textIn the introduction to the volume, the author outlines the development of Italian cinema from its early days to the present
Acquisizione del russo L2 per motivi umanitari
No full textIl lavoro descrive l’acquisizione del russo L2 da parte di un gruppo di volontari italiani impegna- ti nell’accoglienza di bambini di lingua russa, concentrandosi su un esercizio di comprensione e produzione orale. I dati evidenziano alcune tracce di morfologia flessiva e la frequente con- trapposizione tra topic e comment. Forse a causa di fattori legati all’input e alla motivazione, il punteggio è più alto in produzione che in comprensione. I risultati sono discussi in termini didattici e acquisizionali
Peculiar Features of Lime-Treated Pyroclastic Soils through a Multi-Scale Experimental Investigation
No full textSoil-improvement techniques with binders are used in several geotechnical engineering applications as a sustainable solution for the reuse of waste soils. Due to their inherent complexity and their mechanical behaviour, pyroclastic soils are generally considered waste geomaterials in their natural state. Lime treatment of pyroclastic soils can be considered a viable solution for their reuse in geotechnical applications. In this paper, some peculiar features of the chemo-physical evolution and mechanical behaviour of lime-treated pyroclastic soils are evidenced through a multi-scale experimental investigation. While, for clayey soils, the fine fraction is mainly responsible for ion exchange and pozzolanic reactions induced by lime, for pyroclastic soils, pozzolanic reactions are dominant processes due to the low quantity of clay minerals along with the abundance of aluminates and silicates as the main constituents of their amorphous phase. The link between the phenomena detected at the microscale level, the mineralogical composition, and the macroscopic behaviour of two lime treated pyroclastic soils of different origin is explored through a multiscale approach
Geotechnical properties of lime stabilised pyroclastic soils
No full textIn the paper, some results of an extensive experimental investigation on lime stabilised Italian pyroclastic soils are presented and discussed. In their natural state, these materials present several complexities, starting with their mechanical behavior which is often at the transition between hard soils and weak rocks. These soils are very reactive with calcium oxide (CaO) provided by lime, the effectiveness of the stabilisation mainly depending on the amount of low alkali allumino-silicate glass phase. Nevertheless there is a lack of systematic studies on the suitability of pyroclastic soils to lime stabilisation, and the effects of the treatment parameters on the engineering properties of the stabilised material. Two pyroclastic soils have been considered in this study. The first is a sand with gravel belonging to a pyroclastic flow deposit of the Colli Albani volcanic complex, and the second is a silty sand originated by the late
activity of the Somma-Vesuvius. The results on natural and lime stabilised samples allow to assess the suitability and the effectiveness of lime stabilisation
Microstructural features of lime-stabilised pyroclastic soils
No full textSome results of an experimental investigation on a lime-stabilised Italian pyroclastic soil are presented
and discussed. This material is very reactive with calcium oxide (CaO) provided by the lime, the
effectiveness of the stabilisation mainly depending on the amount of low alkali alumino-silicate glass
phase. However, there is a lack of systematic studies on the suitability of such pyroclastic soils to lime
stabilisation and the effects of treatment parameters on the engineering properties of the stabilised
material. The results of laboratory tests (chemical, physical and mechanical) on untreated and limestabilised
samples allow an overview of the microstructural features of the material and, as a
consequence, on the suitability and effectiveness of lime stabilisation
Hong Kong-Palermo | Fluid Cities
Get PDFBeing a modern university does not mean simply carrying out with rigor and commitment the role of an educational and research agency, but increasingly requires the need to open up to the city, the region and the world. It means extending our relationships by letting people and ideas navigate the long networks of knowledge, comparison and collaboration. For this reason the University of Palermo is decisively increasing its activity of internationalization and of openness to the inputs that come from the society of widespread knowledge in which we are immersed. In the liquid society also the university must change its mission, capturing the transformations of the contemporary, renewing the modalities of cultural and social relationship, more co-operative and cosmopolitan. In this challenge for the renewal of the deepest meaning of the universities the International Workshop Hong Kong-Palermo promoted by professors Maurizio Carta and Dario Russo of the Department of Architecture together with the colleagues of the prestigious Raffles Institute in Hong Kong is an important step also because it inaugurates an innovative teaching mode in which groups of students and tutors of different cultures meet together on the same topic, mutually enriching their visions and techniques, crossing a new Silk Road between Asia and Europe in which ideas and projects flow
Energy transition and E-mobility: a difficult combination
No full textIn order to promote the energy transition and mitigate the effects of the climate change, the European Union is committed to develop a sustainable, competitive, safe and decarbonised energy system.
The development of the energy market is indeed more and more oriented towards the safeguard of the environmental interests and the responsible use of natural resources, which pacing themselves in a ‘unified experience’, become functional to the improvement of life, to the satisfaction of human needs, included those of the future generation
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