Policy Based and Trust Management for Critical Infrastructure Protection

http://cmuportugal.org/tiercontent.aspx?id=2940Critical infrastructure (CI) services are consumed by the society constantly and we expect them to be available 24 hours a day. A common definition is that CIs are so vital to our society that a disruption or destruction would have a severe impact on the social well-being and the economy on a national and an international level. CIs can be mutually dependent on each other and a failure in one infrastructure can cascade to another interdependent infrastructure to cause service disruptions. Methods to better assess and monitor CIs and their interdependencies in order to predict possible risks have to be developed. This work addresses the problem of the quality of information exchanged among interconnected CI, the quality of the relationship in terms of trust and security and the use of Trust and Reputation management along with the Policy Based Management paradigm is the proposed solution to be applied at the CI interconnection points for information exchange

Equilibria in reflexive Banach lattices with a continuum of agents.

We consider exchange economies with a measure space of agents and for which the commodity space is a separable and reflexive Banach lattice. Under assumptions imposing uniform bounds on marginal rates of substitution, positive results on core-Walras equivalence were established in Rustichini-Yannelis [27] and Podczeck [25]. In this paper we prove that under similar assumptions on marginal rates of substitution, the set of competitive equilibria (and thus the core) is non-empty.Competitive equilibria; Continuum of agents; Reflexive Banach lattice commodity spaces; Uniform properness;

Il re si diverte e muore: un itinerario dal grottesco all’assurdo

This essay first discusses Victor Hugo’s defence of grotesque, his defence of Shakespeare, his achievements in Le roi s’amuse, and also the limitations due to his prophetic style. Piave and Verdi go further in Il Rigoletto, especially in the dramatic polyphony of opposite voices and points of view. Finally, we follow the creation of new kings, from Jarry’s Ubu to Ionesco’s Le roi se meurt: the absurd dimension which the romanticists had felt but had refused to surrender to is in the absurd and in most post-dramatic theatre a double impossibility of giving sense to the world and language to tragedy

Nonlinear semi-analytical model for simulation of few-mode fiber transmission

In this letter, a nonlinear semi-analytical model (NSAM) for simulation of few-mode fiber transmission is proposed. The NSAM considers the mode mixing arising from the Kerr effect and waveguide imperfections. An analytical explanation of the model is presented, as well as simulation results for the transmission over a two mode fiber (TMF) of 112 Gb/s using coherently detected polarization multiplexed quadrature phase-shift-keying modulation. The simulations show that by transmitting over only one of the two modes on TMFs, long-haul transmission can be realized without increase of receiver complexity. For a 6000-km transmission link, a small modal dispersion penalty is observed in the linear domain, while a significant increase of the nonlinear threshold is observed due to the large core of TMF

PRÁTICAS PARA HABITAR O CORPO: O SILÊNCIO, A ESCUTA E A ATENÇÃO NO TRABALHO DO ATOR-PERFORMER

Practices to Inhabit the body – Silence, Listening and Attention in the Work of the Actor-Performer   RESUMO: Este texto examina algumas práticas do ator-performer que abrem caminhos para o alargamento da percepção, em que o mundo é extensão do interior do ator-performer e o interior é uma extensão do mundo. Esta ideia de prolongamento opõe-se aos dualismos da separação e oposição. Implica um trabalho de desprogramação do regime habitual de atenção e a aceitação de maneiras de operar em que, para não estarmos divididos, aceitamos estar ao mesmo tempo relaxados e atentos, ativos e passivos, em movimento e na imobilidade, em corrida e contemplação, com uma atenção fluida que é também porta para o fluxo e para o visível, por vezes ínfimo, para o invisível e para o desconhecido. Em que se busca habitar o corpo e ao mesmo tempo um esquecimento de si. Partindo de encontros de trabalho com o Open Program do Workcenter de Jerzy Grotowski e Thomas Richards, com Alain Alberganti e com François Kahn, bem como do estudo da literatura sobre o ofício do ator, analisam-se três elementos fundamentais na busca por outras formas de perceber: o silêncio, a escuta e a atenção. Palavras-chave: Atenção; Ator-performer; Escuta; Percepção; Silêncio.   ABSTRACT: This text examines some practices of the actor-performer which give possibilities to broaden the perception, in which the world is an extension of the inner life of the actor-performer and the inner life is an extension of the world. This idea of prolongation is opposed to the dualisms of separation and opposition. It implies a work of deprogramming the usual attention regime and the acceptance of ways of operating in which, in order not to be divided, we accept to be at the same time relaxed and attentive, active and passive, in movement and immobility, contemplating while running. The movements are continually crossed by the imaginary, with a fluid attention that is also a door to the flow and to the visible, sometimes micro, to the invisible and to the unknown. In which the body is sought to inhabit and at the same time a selfforgetfulness. From work meetings with Open Program of the Workcenter of Jerzy Grotowski and Thomas Richards, Alain Alberganti and François Kahn, as well as studies of philosophy and literature regarding the actor’s craft, the authors analyze three fundamental elements in the search of other ways of perception: silence, listening and attention. Keywords: Actor-performer; Attention; Listening; Perception; Silence

o silêncio, a escuta e a atenção no trabalho do ator-performer

UIDB/05021/2020 UIDP/05021/2020Este texto examina algumas práticas do ator-performer que abrem caminhos para o alargamento da percepção, em que o mundo é extensão do interior do ator-performer e o interior é uma extensão do mundo. Esta ideia de prolongamento opõe-se aos dualismos da separação e oposição. Implica um trabalho de desprogramação do regime habitual de atenção e a aceitação de maneiras de operar em que, para não estarmos divididos, aceitamos estar ao mesmo tempo relaxados e atentos, ativos e passivos, em movimento e na imobilidade, em corrida e contemplação, com uma atenção fluida que é também porta para o fluxo e para o visível, por vezes ínfimo, para o invisível e para o desconhecido. Em que se busca habitar o corpo e ao mesmo tempo um esquecimento de si. Partindo de encontros de trabalho com o Open Program do Workcenter de Jerzy Grotowski e Thomas Richards, com Alain Alberganti e com François Kahn, bem como do estudo da literatura sobre o ofício do ator, analisam-se três elementos fundamentais na busca por outras formas de perceber: o silêncio, a escuta e a atenção. This text examines some practices of the actor-performer which give possibilities to broaden the perception, in which the world is an extension of the inner life of the actor-performer and the inner life is an extension of the world. This idea of prolongation is opposed to the dualisms of separation and opposition. It implies a work of deprogramming the usual attention regime and the acceptance of ways of operating in which, in order not to be divided, we accept to be at the same time relaxed and attentive, active and passive, in movement and immobility, contemplating while running. The movements are continually crossed by the imaginary, with a fluid attention that is also a door to the flow and to the visible, sometimes micro, to the invisible and to the unknown. In which the body is sought to inhabit and at the same time a selfforgetfulness. From work meetings with Open Program of the Workcenter of Jerzy Grotowski and Thomas Richards, Alain Alberganti and François Kahn, as well as studies of philosophy and literature regarding the actor’s craft, the authors analyze three fundamental elements in the search of other ways of perception: silence, listening and attention.publishersversionpublishe