Search results for "ISOC"
showing 10 items of 301 documents
Il mercato del lavoro e la formazione professionale in Sicilia
2009
The effect of individual and classroom moral disengagement on antisocial behaviors in Colombian adolescents: A multilevel model
2022
The present study examined the predictive effect of moral disengagement (within and between classrooms) on antisocial behaviors in Colombian adolescents, as well as the interaction of moral disengagement with classroom composition by age, socioeconomic status (SES), and perceived teacher–student relationship quality. Multilevel modeling was used to identify individual, compositional, and contextual effects on antisocial behaviors. The predictive variables were: (a) classroom mean score (i.e., between-classroom analysis), and (b) student deviation from the classroom mean score (i.e., within-classroom analysis). The sample included 879 students nested in 24 seventh-grade classrooms in three C…
Isoclinism in probability of commuting n-tuples
2009
Strong restrictions on the structure of a group $G$ can be given, once that it is known the probability that a randomly chosen pair of elements of a finite group $G$ commutes. Introducing the notion of mutually commuting n-tuples for compact groups (not necessary finite), the present paper generalizes the probability that a randomly chosen pair of elements of $G$ commutes. We shall state some results concerning this new concept of probability which has been recently treated in [3]. Furthermore a relation has been found between the notion of mutually commuting n-tuples and that of isoclinism between two arbitrary groups.
La riabilitazione nella ricostruzione del legamento crociato anteriore (prima parte)
2001
Gli autori considerano la ricostruzione del L.C.A. per formulare un razionale di riabilitazione post- chirurgica che, nel rispetto delle leggi della biologia per l'attecchimneto del neolegamento, acceleri il recupero funzionale del paziente.Sottolinenano l'importanza di iniziare il porgramma riabilitativo sin dal gioro dopo l'intervento per poi proseguire rispettando le fasi ed i tempi per una corretta esecuzione dell'esercizio terapeutico.Definiscono le sequele terapeutiche ed indicano le tecniche di più frequente impiego.
Istituzioni di Economia Politica, Volume II, Macroeconomia, Seconda edizione
2008
La legge di Okun: asimmetrie e differenziali territoriali in Italia
2008
[ABSTRACT] Okun's law turns out from the relationship between economic growth and unemployment fluctuations of the American economy during the sixties. Following his results several analyses tried to test the empirical relevance of the relation, initially estimated by Okun, for different countries and historical periods. Generally, authors found heterogeneous results in estimating Okun's coefficient, depending on the sample and context analylised. Moreover, recent analyses focused on the influence exerted by asymmetric components on the relation between output growth and unemployment rate. In this paper we propose an application regarding the Italian regions. In particular, we perform a pan…
La difficile transizione italiana alla vita adulta
2009
Public Employment Services in the New Tendencies of Active Labour Market Policies: Constraints or Resources?
2016
In line with recent labour policy reforms, as well as the European programme known as Youth Guarantee, in Italy public employment services have gained a new centrality in active labour policies. However, public employment services in Italy have been only partially modernised and many critical issues still persist. As a result, a debate on the capacity of employment services to play efficiently an active role in labour policies supply has developed. This paper analyses employment centres in four areas in Sicily ( one of the ea est regions in Italy in terms of institutional efficiency on labour policies), and their performance in the implementation of Youth Guarantee. The work shows the organ…
Identification and Evaluation of Hazardous Pyrolysates in Bio-Based Rigid Polyurethane-Polyisocyanurate Foam Smoke
2021
In this study, rigid polyurethane (PU) and polyisocyanurate (PIR) foam samples made from renewable material (tall oil fatty acid) based polyols were analyzed by pyrolysis gas chromatography mass spectrometry (Py-GC/MS) to obtain information about the full relative smoke content, with a focus on substance identification by their functional groups and hazardousness. The relative content of gaseous products produced during the thermal degradation was evaluated between the two samples, differenced by their assigned isocyanate (NCO) index value—150 and 300. The main thermal degradation components of the rigid PU-PIR foam were found to originate from the decomposition of isocyanate, primarily for…
Dynamic covalent urea bonds and their potential for development of self-healing polymer materials
2019
Self-healing polymer materials have drawn rapidly increasing interest over the last decade, and have been studied and used in an ever-increasing range of applications. Herein, we successfully make the covalent urea bond – a pinnacle of stability due to strong resonance effects – dynamic in nature through mediation of zinc salts. The dynamic covalent character of urea in the presence of zinc ions is confirmed through dissociation reaction experiments and quantum chemical calculations of small-molecule model urea compounds. In line with our experiments, the modelling results suggest that the presence of zinc ions speeds up the reaction of urea dissociation by two orders of magnitude via the f…