10,754 research outputs found

    The Localization Hypothesis and Machines

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    In a recent article in 'Artificial Life', Chu and Ho suggested that Rosen's central result about the simulability of living systems might be flawed. This argument was later declared ''null and void'' by Louie. In this article the validity of Louie's objections are examined

    Infrastructures and sustainability

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    Published: December 2022Against the backdrop of the European Green Deal and the subsequent ‘Fit for 55’ Package, the basic infrastructures will have to become more sustainable over the course of their entire lifecycles, i.e., from design to building, maintenance, operations and eventual decommissioning. Digitalisation, of course, will have a key role to play in advancing this objective, for instance, by optimising capacity utilisation, thus reducing needs for physical infrastructure expansion. While rendering infrastructures climate-proof will take different forms across the various network industries, all of them will have to confront a set of critical questions pertaining to regulatory policy, financing and taxation, among others. In view of this, the Florence School of Regulation’s first Sustainability Conference “Greening Infrastructures” (22 – 23 June 2022) tackled these questions in respect to energy and transport infrastructures. This special issue of the NIQ further explores the topic of “Infrastructures and Sustainability” and features some of the best papers that were presented at the FSR Sustainability Conference. The first contribution by Astier, Rajagopal and Wolak discusses empirical evidence from France suggesting that distributed wind and solar units alone are unlikely to lead to substantial savings in future grid investments. Chu Donatus, Semassou, Ahouansou and Nsanyuy examine the sustainability of some installed renewable-based power systems in Cameroon and identify pull factors. They, furthermore, go on to make recommendations for the sector. Cardinale and Emara find that Algeria has a potential cost advantage in transporting green hydrogen to Europe thanks to overcapacity in its existing gas infrastructure, which could be upgraded. By contrast, Egypt is more competitive in the generation of renewable power, a key input of green hydrogen, thanks to regulation that attracts investments. Serafimova and Finger argue that if it is adequately designed and implemented the ReFuelEU Aviation Initiative could kick-start the European SAF market by fostering a reduction in SAF production costs with economies of scale and technological advances. But since SAFs alone cannot be considered a silver bullet their uptake will have to be accompanied by complementary and coherent efforts concerning other policy levers, such as carbon pricing, energy taxation and air traffic control, among others.-- Can distributed generation reduce future grid investments? Nicolas Astier, Ram Rajagopal and Frank A. Wolak -- The sustainability of renewable energy-based electrification projects in Cameroon: technical, institutional and policy perspectives Iweh Chu Donatus, Guy Clarence Semassou, Roger H. Ahouansou, Wirnkar Basil Nsanyuy -- Upgrading North Africa-EU gas infrastructure to transport green hydrogen Roberto Cardinale, Nariman Emara -- Refuelling the transition to net zero emissions in the aviation sector Teodora Serafimova, Matthias Finger -- Announcement

    MTO2000 Speedi-db

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    Locuteurs dysphoniques enregistrés dans le service ORL du CHU de la Timone à Marseille entre 1995 et 200

    Halocarbons in the atmosphere of the industrial-related Pearl River Delta region of China

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    Author name used in this publication: Chu, K. W.Version of RecordPublishedVoR allowe

    Retour d’expérience, CHU de Rouen confronté à une attaque en 2019

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    International audienceIn this article, the author returns to the cyberattack against the Rouen University Hospital dating from 2019. It describes the measures that had to be put in place in order to respond to them and allow the proper functioning of the health system during this period of destabilization. For the author, a cyberattack is managed in six phases: 1. preparation for crisis management; 2. Identification of the cause and extent of the incident; 3. Compartmentalization and implementation of the action plan; 4. Remediation; 5. Restoration; 6. Feedback. For the author, the organization of the crisis unit is specific to each health institution but it is essential to train staff in the risks of a cyberattack.Dans cet article, l’auteur revient sur la cyberattaque à l’encontre du CHU de Rouen datant de 2019. Il décrit les mesures qui ont dû être mises en place afin de répondre à celles-ci et permettre le bon fonctionnement du système de santé durant cette période de déstabilisation. Pour l’auteur, une cyberattaque se gère en six phases : 1. la préparation de la gestion de crise ; 2. Identification de la cause et de l’étendue de l’incident ; 3. Le cloisonnement et la mise en place du plan d’action ; 4. La remédiation ; 5. La restauration ; 6. Le retour d’expérience. Pour l’auteur, l’organisation de la cellule de crise est propre à chaque établissement de santé mais il est indispensable de former le personnel aux risques d’une cyberattaque
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