182,259 research outputs found
The Labor Market of Italian Politicians
No full textThe ruling class plays a major role in society. Historically, economists devoted far less attention than sociologists to the study of ruling classes. Using the theoretical tools of economists, this volume provides an understanding of what drives the formation of a ruling class, and the relationship between politics and business firms. Focusing on Italy, it uses labour economics to analyse the selection of the ruling class, and the labour market of politicians. It uses detailed information on personal characteristics, incomes, performance in office, and career paths (both before and after the Parliamentary mandate) of all the politicians elected to the Italian Lower Chamber (Camera) between 1948 and 2008. This is the first time that this information has been gathered and summarized in key indicators
Descriptive analysis and evaluation of the components of the quarter
No full textCapitolo che si riferisce all’individuazione dei nodi, dei percorsi, dei riferimenti, dei margini (con riferimento ai principi introdotti da K. Lynch), del quartiere Greco- Ortodosso dell'Annunciazione a Nazareth (Is) e alla loro valutazione secondo gli indicatori di qualità/degrado, livello di conoscenza a scala locale, nazionale e mondiale, livello di accessibilità, livello di visibilità e livello di leggibilità (ispirandosi ai principi del Codice dei Beni Culturali italiano -D.Lgs. 42/2004).
In questa fase si è proceduto anche al rilievo ed alla restituzione grafica (L. Astegno), al rilievo dello stato di degrado (L. Astegno, M. Merlo) e alla lettura iconografica delle opere interne (M. Boscolo Marchi) della settecentesca Chiesa Ortodossa dell’Annunciazione che contiene, secondo la tradizione, il Pozzo di Maria
Adaptive mobile computing: advances in processing mobile data sets
No full textAdaptive Mobile Computing: Advances in Processing Mobile Data Sets explores the latest advancements in producing, processing and securing mobile data sets. The book provides the elements needed to deepen understanding of this trend which, over the last decade, has seen exponential growth in the number and capabilities of mobile devices. The pervasiveness, sensing capabilities and computational power of mobile devices have turned them into a fundamental instrument in everyday life for a large part of the human population. This fact makes mobile devices an incredibly rich source of data about the dynamics of human behavior, a pervasive wireless sensors network with substantial computational power and an extremely appealing target for a new generation of threats. © 2017 Elsevier Inc. All rights reserved
The formation volume in rare earth intermetallic systems: A representation by means of atomic physical quantities
No full textThe formation of the intermetallic phases is often accompanied by large volume effects, and several interpretations of this phenomenon have been proposed following different approaches, either from a simply empirical or purely theoretical point of view. In his pioneering work, Biltz (Biltz 1934) employed the experimental density values to list the molar volumes of the elements and of numerous inorganic and organic solids, including intermetallic phases. The systematic analysis of the data allowed the scientist to estimate the effective volumes of the atoms within the compounds, making possible the application of the volume additivity. Machlin studied the effects of electronegativity on energy and volume of formation, assuming that the volume corrections depend on the Gordy electronegativity difference (Machlin 1980). Watson and Bennett obtained 82a good correlation between the volume effects shown by the phases of the transition elements and a scale resembling the Gordy electronegativity, while a cellular method was applied to estimate the volume changes in phases with alkaline and alkaline earth metals (Watson and Bennett 1982, 1984). Alonso showed that a model of a disordered binary alloy of nontransition metals explains the tendency to a negative deviation from Vegard’s law as this lowers the energy of formation (Alonso et al. 1984). In the Miedema model (Miedema and Niessen 1982), the volume contraction in metallic systems can be ascribed to a charge transfer effect, described mainly by the differences both in an electronegativity-like scale (F*) and in the electron density parameter (nWS). Moreover, in systems with atoms of different radius, a further volume contraction may arise from elastic size mismatch energy. The differences in electronegativity are ignored in the Hafner approach, based on the lowest-order pseudopotential perturbation theory (Hafner 1985). This method provides good results for extended solid solutions of homovalent systems (intra-alkaline and intra-alkaline-earth alloys) and for some intermetallics of the cited elements. A phenomenological approach was used to describe the volume effects displayed by the intermetallic compounds formed by alkaline earths (Ca, Sr, Ba) and divalent rare earths (Eu, Yb) (Merlo 1988) and by the trivalent rare earths (Merlo and Fornasini 1993), introducing a charge transfer atomic parameter, correlated with Pauling’s electronegativity. More recently, the volume contractions of the binary phases of Ca, Sr, Ba, Eu and Yb were represented by a simple equation containing the electronegativity, the compressibility and the group number (Fornasini and Merlo 2006). The most advanced method is based on the calculation of partial atomic volumes and charges as a function of composition (Baranov et al. 2007)
Assessment of average muscle fiber conduction velocity from surface EMG signals during fatiguing dynamic contractions
No full textUna strana gioia di vivere : a Grado Giovanni Merlo
No full textIl volume raccoglie saggi in onore di Grado Giovanni Merlo dedicati alla storia religiosa, alla storia francescana, e a temi eterogenei di storia moderna e contemporane
Qualche parola d’introduzione
No full textIl volume dedicato a Grado Giovanni Merlo in occasione dei suoi 65 anni da amici e colleghi si caratterizza per una grande vraietà di temi dai quali emergono due filoni di ricerca prvilegiati, la storia religiosa medievale e la storia francescana
Analysis of machine tool failures using advanced reliability models for complex repairable systems
No full textThe competitiveness of modern markets has induced machine tool producers to realize high reliability innovative products. Nowadays, machine tool is an integration of extremely advanced technological devices able to perform tasks with high accuracy and flexibility. The main goal must be to guaranlce specified performances, but, above all, to maintain them for all the life cycle time. Reliability and maintainability analysis (R&M) of a complex system deals with many opportunities both for the producers and the customers. The analysis permits to understand the behavior of the machine and to obtain useful information in order to base maintenance policies on analytical results. In this paper a structured R&M analysis for repairable systems is applied to a set of lathes. Failure data are collected by the company customer service for thirty months. The whole system is decomposed into main groups and components. Life data analysis is applied and the failure distribution of the repairable groups is described through a non-homogeneous Poisson process. When complex repairable systems are considered, the reliability must be modeled taking into account that it is strictly influenced by maintenance actions that restore/renew system components when they fail. Finally an R&M perspective for the entire machine is shown
In particolare: l'aggravante ambientale
No full textIl contributo descrive la nuova aggravante ambientale iscritta all'art 452 nonies del codice penale dalla legge 22 maggio 2015, n. 6
Precision medicine in heart failure no longer a visual theory but a realistic opportunity
No full textOver the last decades, major advances in the understanding of pathophysiology in a wide spectrum of cardiovascular diseases provided several effective pharmacological and non-pharmacological therapies [1]. Along with novel rehabilitation and follow up strategies, these advances have improved the survival rate of cardiac diseases, globally, and contributed generally to a significant increase in life expectancy [2]. As a consequence, there is a parallel increase of patients suffering from challenging and multifaceted syndromes such as heart failure (HF). HF is a recognised pandemic disease, with a progressively increasing prevalence in the aging population [3]. It is a major public health issue, considering both its social and economic implications. HF patients are characterised by a high level of complexity because of the advanced age and the presence of multiple relevant comorbidities requiring dedicated polytherapy [1]. Therefore, overall mortality of HF patients is still unacceptably high, exceeding that of several neoplasms, carrying a risk of approximately 10% at 12 months from clinical onset [4]
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