Atti del VIII Simposio di Efeso su S. Giovanni Apostolo

Reseña de Luigi PADOVESE (dir.), Atti del VIII Simposio di Efeso su S. Giovanni Apostolo, (Turchia: la Chiesa e la su storia, XV), Istituto francescano di spiritualità, Pontificio Ateneo Antoniano di Roma, Edizioni Eteria Associazione, Roma 2001, 374 pp., 16 x 22

Carlo Emilio Gadda's Luigi di Francia

The work that Gadda prepared for publication from the series of broadcasts on Louis XIII-XV of France during 1952 has largely been overlooked by critics. It is the aim of this article to show that, although there are certain unusual features in the text of I Luigi di Francia which arise from its origins in radio scripts, the work is recognisably Gaddian in its main stylistic and thematic concerns. In tracing some of the background to the text, due acknowledgement is made of the scholarly work already done on the history of the text by Gianmarco Gaspari, the compiler of the Notes on this text for the Garzanti edition of Gadda's Opere; Gaspari's implied conclusion that this is not the least Gaddian of the author's work, and his important conclusions about the degree to which the work was based on source material, offers the opportunity here for an analysis and explicit statement of the nature of the text and of its reflection of significant points in the span of Gadda's writing

Semiclassical bounds for spectra of biharmonic operators

We provide complementary semiclassical bounds for the Riesz means $R_1(z)$ of the eigenvalues of various biharmonic operators, with a second term in the expected power of $z$. The method we discuss makes use of the averaged variational principle (AVP), and yields two-sided bounds for individual eigenvalues, which are semiclassically sharp. The AVP also yields comparisons with Riesz means of different operators, in particular Laplacians

Financial Markets imperfections, heterogeneity and growth

This paper offers a model of growth with heterogeneous agents in which, due to asymmetric information, financial markets do not work properly. In such a world, the Modigliani-Miller theorem fails to hold, a financial hierarchy emerges and ‘how to finance’ the engine of growth – in our case represented by uncertain endeavours in R&D - matters. In turn, heterogeneity means that agents lack sufficient information on the behaviour adopted by the others, forcing them to make use of naive rules in forming expectations and in calculating their probability of bankruptcy. The basic properties of the model are explored via simulations. In particular, it is possible to appreciate how a worsening of financial conditions (e.g. an increase of the contractual interest rate on loans or of the probability of bankruptcy) affects negatively the long-run average rate of growth

The long swings in economic understanding

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Big Data Analytics for QoS Prediction Through Probabilistic Model Checking

As competitiveness increases, being able to guaranting QoS of delivered services is key for business success. It is thus of paramount importance the ability to continuously monitor the workflow providing a service and to timely recognize breaches in the agreed QoS level. The ideal condition would be the possibility to anticipate, thus predict, a breach and operate to avoid it, or at least to mitigate its effects. In this paper we propose a model checking based approach to predict QoS of a formally described process. The continous model checking is enabled by the usage of a parametrized model of the monitored system, where the actual value of parameters is continuously evaluated and updated by means of big data tools. The paper also describes a prototype implementation of the approach and shows its usage in a case study.Comment: EDCC-2014, BIG4CIP-2014, Big Data Analytics, QoS Prediction, Model Checking, SLA compliance monitorin