1,721,109 research outputs found
Grain size distribution and thickness of breccia and gouge zones from thin (<1 m) strike-slip fault cores in limestone
No full textThrough field and laboratory analyses, the cross-sectional structure and the grain size distribution of 10 strike-slip fault cores less than 1 m thick were studied. The fault cores are exposed in Jurassic platform limestone within the Mattinata Fault zone located in the AdriaticˆApulian foreland of southern Italy. Each fault core consists of a breccia zone and a gouge zone, which differ in thickness and grain size distribution. Through the conventional sieving-and-weighting method, the grain size distribution of 20 samples of fault rocks was obtained. The distributions follow power-laws with fractal dimension (D) in the 2.00977ˆ3.04008 range. Gouge D-values are proportional to the normalised thickness of the corresponding gouge zones. For a gouge D-valuez2.2, the thickness of the corresponding gouge zone is only about 3% of the fault core thickness, whereas for a gouge D-valuez3.0, the thickness of the corresponding gouge zone is almost 90% of the fault core thickness. Results from this study suggest that, with progressing fault displacement: (i) grain comminution in fault cores occurred mostly by early bulk fragmentation of grains and late grain abrasion; (ii) breccia zones were progressively incorporated into the adjacent gouge zones
Attributes and influence on fluid flow of fractures in foreland carbonates of southern Italy
No full textThe geometrical and structural attributes of fractures and fracture networks affecting Mesozoic-Cenozoic, platform carbonates from foreland areas of southern Italy are qualitatively and quantitatively described. Fractures include faults, joints, and fault-related solution cleavages. Two tectonic environments can be recognised: (1) the Apulian and Hyblean forebulge domains, consisting of broad foreland areas, where joints and rare, low-displacement, normal faults occur, and (2) the Gargano strike-slip fault domain, where strike-slip faults and fault-related solution cleavages are the most ubiquitous structures. In both tectonic environments, orthogonal sets of sub-vertical fractures separate the beds into an assemblage of fracture-bound blocks commonly characterised by an orthorhombic symmetry and a centimetric-to-metric size. The general causes for the observed fractures are ascribed to the bending stress in the Apulian and Hyblean forebulge domains, and to the strike-slip faulting in the Gargano area. Fracture attributes and distributions suggest that the rock permeability is markedly anisotropic in both tectonic environments
Towards IMF reform: understanding critics and perspective
No full text"Towards IMF reform: understanding critics and perspective" Nell'articolo sono presentate le critiche al funzionamento del FMI e le conseguenti proposte di modifica del fondo e, più in generale, delle istituzioni finanziarie internazionali."" Towards IMF reform: understanding and perspective critics "" In the article are presented critical to the functioning of the IMF and the proposals for the amendment of the Fund and, more generally, the international financial institutions
Crisi economico-finanziaria, legge di bilancio e fonti del diritto
Full text linkLe politiche dell’innovazione ricoprono un ruolo cruciale per poter garantire un adeguato sviluppo economico ed un effettivo incremento delle performances di crescita, potenziando sia l’efficienza dei processi produttivi che la qualità stessa dei beni. Emerge dunque un legame tra innovazione e produttività, riscontrato anche nel contesto accademico ed in studi quali, ad esempio, quello di Baumann et al. (2016), concernente innovazione e produttività nelle microimprese.
Similmente, considerando le attività di ricerca e sviluppo come un elemento cardine del processo d’innovazione, Rodriguez-Pose e Crescenzi (2008) collegano una maggiore quantità di capitali investiti in R&S ad una più intensa ricerca applicata, tale da comportare una maggior quantità di prodotti ed innovazioni tecnologiche in grado di stimolare la crescita economica.
A tal proposito, dalle ricerche di Guellec et al. (2001) riguardanti 16 Paesi OCSE, si può evincere come non solo vi sia una relazione positiva tra R&S e crescita, ma anche che la correlazione tra innovazione e produttività aumenta nel tempo e che un punto percentuale in più nelle attività di R&S di un Paese è in grado di incrementare l’elasticità del rapporto tra queste ultime e la crescita produttiv
L'allargamento dell'UE ai PECO: Integrazione o disintegrazione?
No full textIl tema dell’allargamento dell’Unione europea e della formazione del Mercato Unico Paneuropeo riveste un ruolo centrale nell’ambito delle relazioni esterne dell’Ue. Il Mercato unico paneuropeo costituirà, infatti, la più vasta area integrata del mondo industrializzato, sia dal punto di vista geografico, estendendosi dall’Atlantico agli Urali, sia soprattutto in termini di potenzialità economica, coinvolgendo circa mezzo miliardo di lavoratori, consumatori, risparmiatori in uno spazio commerciale unico composto da 31 paesi. Il presente lavoro affronta specificamente tale complesso di questioni, proponendo analisi e valutazioni critiche. Il volume raccoglie gli atti della giornata seminariale organizzata dal CIDEM (Centro Interdipartimentale sul Diritto e l’Economia dei Mercati), con il contributo della Commissione europea, Direzione Generale Istruzione e Cultura, tenutasi presso la Facoltà di Scienze Politiche dell’Università di Roma “La Sapienza” il 10 ottobre 2002.The issue of EU enlargement and the formation of the Pan-European Common Market plays a central role in the external relations of the EU. The pan-European single market will be, in fact, the largest integrated area of mondoindustrializzato, both from the geographical point of view, extending from the Atlantic to the Urals, and especially in terms of economic potential, involving nearly half a billion workers, consumers, savers in a commercial space only consists of 31 paesi.Il this paper specifically addresses such complex issues, offering critical analysis and evaluation. The volume contains the proceedings of the day-long workshop organized by CIDEM (Interdepartmental Centre on Law and Economics deiMercati), with support from the European Commission, Directorate-General for Education and Culture, held at the Faculty of Political Science, University of Rome "La Sapienza "October 10, 2002
socio-economic issues and options for impreoved management of irrigation system
No full textThjs work presents various beneficial impact of irrigation development and technique to quantify socio-economic and environmental impact of water use
The critical role of innovation for the well-being of our society: a multilateral approach matters
Full text linkThe article analyzes the importance of innovation in promoting social well-being and its possible role in
driving prosperity and accelerating regional development. It elaborates on the paramount role of small
and mediium sized enterprises in generating jobs and spurring employment. International cooperation
must take these aspects into account in order to promote economic, environmental and social
sustainability and contribute to the reduction of inequalitie
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