1,721,502 research outputs found
Semidiscretization of stochastic partial differential equations by a finite-element technique
No full textFinite-dimensional approximations for the equations of nonlinear filtering derived in mild form
No full textIl project finance nel settore sanitario: stato dell'arte e prospettive in Italia
No full textAnalisi dell'applicazione delle tecniche di project finance al settore sanitari
Income inequality and environmental crime in Italy: an empirical analysis at regional level
No full textOur work intends to explore the relationship between economic inequalities and environmental crime. While the relationship (and effects) between pollution and socioeconomic conditions is well documented, there is a lack, to the best of our knowledge, of empirical studies on the link between environmental crime and economic inequalities. Our results could provide a relevant contribution to the economic literature on crime not only because it analyzes a particular type of crime, such as environmental crime, hitherto largely neglected by the empirical literature, but also because Italy represents a compelling case-study given the heavy presence of the so-called eco-mafias,, and the high heterogeneity in terms of socio-economic, environmental, and institutional characteristics at country level
An Enhanced Observer for Nonlinear Systems with Time-Varying Measurement Delays
No full textIn this article, we propose an observer for a class of Lipschitz nonlinear systems affected by time-varying and known measurement delays, which is an improvement of the one presented by Cacace et al., 2014. Under the assumption that the delay function is piecewise continuous and differentiable, we prove that exponential convergence to zero of the observation error can be achieved with any desired decay rate, by suitably tuning a gain vector. The delay bound achieved with the observer proposed here is less conservative than the one obtained by Cacace et al., 2014, as confirmed by numerical tests. For the sake of brevity, in this article, only one-step observers are considered. However, a cascade observer can be arranged to cope with arbitrarily long delays
849. S. Germani a Pratis necrologium
No full text849. S. Germani a Pratis necrologium. In: Molinier Auguste. Les Sources de l'histoire de France - Des origines aux guerres d'Italie (1494). I. Époque primitive, mérovingiens et carolingiens. Paris : A. Picard et fils, 1901. p. 259
Illegal trafficking and unsustainable waste management in Italy: evidence at the regional level
Full text linkThe presence of organized crime strongly affects sustainable waste management in Italy. In particular, illegal traf cking of waste has become one of the fastest growing areas of crime and one of the most lucrative industries among organized criminal activities, which has now in ltrated both the Italian urban and hazardous waste management cycle. In this study, we aim to investigate the determinants of the illegal traf cking of waste using waste, economic, and enforcement data in a panel analysis over the period 2002-2013. The topic is particularly relevant, given the high heterogeneity across Italian regions which also relates, and eventually leads, to different environmental performances. Our main ndings reveal that, in most Italian regions, enforcement activities do not exert a signi cant deterrence on criminal behaviors; a negative relationship between enforcement and illegal traf cking of waste can be identi ed only for very high levels of enforcement efforts. Moreover, we nd that the major determinants in uencing the rate of illegal traf cking of waste differ between northern-central and southern regions, con rming the existence of a regional dualism. In particular, while in the northern-central area the crime rate is positively related to the level of education and negatively to the adoption of environmentally sound policies, in southern regions the organized activities for illegal traf cking are negatively related to the degree of education attainment and positively to the endowment of waste management plants
LTV stochastic systems stabilization with large and variable input delay
Full text linkIn this paper we propose a solution to the state-feedback and output-feedback stabilization problem for linear time-varying stochastic systems affected by arbitrarily large and variable input delay. It is proved that under the proposed controller the underlying stochastic process is exponentially centered and mean square bounded. The solution is given through a set of delay differential equations with cardinality proportional to the delay bound. The predictor is based on the semigroup generated by the closed-loop system in absence of delay, and its computation is described by a numerically reliable and robust method. In the deterministic case this method generates the same optimal trajectories as in the delay-less case
Galerkin approximation for optimal nonlinear filtering of infinite-dimensional linear systems
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