852 resultados para Semiconductor Services, Ubiquitous Sensor Network


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The North Carolina Area Health Education Centers Library and Information Services (NC AHEC LIS) Network provides library outreach services to rural health care providers in all nine AHEC regions of North Carolina. Over the last twenty-five years, the AHEC and university-based librarians have collaborated to create a model program for support of community-based clinical education and information access for rural health care providers. Through several collaborative projects, they have supported Internet access for rural health clinics. The NC AHEC Digital Library—under development by NC AHEC, University of North Carolina at Chapel Hill, Duke University, East Carolina University, and Wake Forest University—will further extend access to electronic biomedical information and resources to health professionals in a statewide digital library.

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Ca2+ and its ubiquitous intracellular receptor calmodulin (CaM) are required in the nervous system, among a host of cellular responses, for the modulation of several important enzymes and ion channels involved in synaptic efficacy and neuronal plasticity. Here, we report that CaM can be replaced by the neuronal calcium sensor NCS-1 both in vitro and in vivo. NCS-1 is a calcium binding protein with two Ca(2+)-binding domains that shares only 21% of homology with CaM. We observe that NCS-1 directly activates two Ca2+/CaM-dependent enzymes (3':5'-cyclic nucleotide phosphodiesterase and protein phosphatase calcineurin). Co-activation of nitric oxide synthase by NCS-1 and CaM results in a higher activity than with CaM alone. Moreover, NCS-1 is coexpressed with calcineurin and nitric oxide synthase in several neuron populations. Finally, injections of NCS-1 into calmodulin-defective cam1 Paramecium partially restore wildtype behavioral responses. With this highly purified preparation of NCS-1, we have obtained crystals suitable for crystallographic structure studies. NCS-1, despite its very different structure, distribution, and Ca(2+)-binding affinity as compared with CaM, can substitute for or potentiate CaM functions. Therefore, NCS-1 represents a novel protein capable of mediating multiple Ca(2+)-signaling pathways in the nervous system.

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Society today is completely dependent on computer networks, the Internet and distributed systems, which place at our disposal the necessary services to perform our daily tasks. Subconsciously, we rely increasingly on network management systems. These systems allow us to, in general, maintain, manage, configure, scale, adapt, modify, edit, protect, and enhance the main distributed systems. Their role is secondary and is unknown and transparent to the users. They provide the necessary support to maintain the distributed systems whose services we use every day. If we do not consider network management systems during the development stage of distributed systems, then there could be serious consequences or even total failures in the development of the distributed system. It is necessary, therefore, to consider the management of the systems within the design of the distributed systems and to systematise their design to minimise the impact of network management in distributed systems projects. In this paper, we present a framework that allows the design of network management systems systematically. To accomplish this goal, formal modelling tools are used for modelling different views sequentially proposed of the same problem. These views cover all the aspects that are involved in the system; based on process definitions for identifying responsible and defining the involved agents to propose the deployment in a distributed architecture that is both feasible and appropriate.

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Society, as we know it today, is completely dependent on computer networks, Internet and distributed systems, which place at our disposal the necessary services to perform our daily tasks. Moreover, and unconsciously, all services and distributed systems require network management systems. These systems allow us to, in general, maintain, manage, configure, scale, adapt, modify, edit, protect or improve the main distributed systems. Their role is secondary and is unknown and transparent to the users. They provide the necessary support to maintain the distributed systems whose services we use every day. If we don’t consider network management systems during the development stage of main distributed systems, then there could be serious consequences or even total failures in the development of the distributed systems. It is necessary, therefore, to consider the management of the systems within the design of distributed systems and systematize their conception to minimize the impact of the management of networks within the project of distributed systems. In this paper, we present a formalization method of the conceptual modelling for design of a network management system through the use of formal modelling tools, thus allowing from the definition of processes to identify those responsible for these. Finally we will propose a use case to design a conceptual model intrusion detection system in network.

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Introduction. The internal market for services is one of the objectives set by the founding fathers of the EC back in 1957. It is only in the last ten-fifteen years, however, that this aspect of the internal market has seriously attracted the attention of the EC legislature and judiciary.1 With the exception of some sector-specific directives dating back in the late ‘80s, it is only with the deregulation of network industries, the development of electronic communications and the spread of financial services, in the ‘90s that substantial bits of legislation got adopted in the field of services. Similarly, the European Court of Justice (ECJ, the Court) left the principles established in Van Binsbergen back in 1973, hibernate for a long time before fully applying them in Säger and constantly thereafter.2 Ever since, the Court’s case law in this field has grown so important that it has become the compulsory starting point for any study concerning the (horizontal) regulation of the internal market in services. The limits inherent to negative integration and to the casuistic approach pursued by judiciary decisions have prompted the need for a general legislative text to be adopted for services in the internal market. This text, however, hotly debated both at the political and at the legal level, has ended up in little more than a complex restatement of the Court’s case law. It may be, however, that this ‘little more’ is not that little. In view of the ever expanding application of the Treaty rules on services, promoted by the ECJ (para. 1),3 the Directive certainly appears to be a limited regulatory attempt (para. 2). This, however, does not mean that the Directive is a toothless, or useless regulatory instrument (conclusion: para. 3).

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A lively debate emerged on the proposed “Connected Continent” legislative package presented by the European Commission in September 2013. The package contains a proposed rule on the ‘open Internet’, which was heavily discussed in European Parliament hearings in early December. This commentary argues that while the proposed rule is in principle balanced and appealing, it is utterly impractical due to the enormous uncertainty that its application would entail. At the same time, the rule is very far from what neutrality proponents have argued for almost a decade: rather than the place for internet freedom, it would transform the Web into a place requiring constant micro-management and tutoring of user behaviour. Both arguments lead to the conclusion that the current proposal should be at once reformed and analysed under a more holistic lens. On the one hand, Europe should launch an ambitious project for the future, converged infrastructure by mobilising resources and reforming rules to encourage investment into ubiquitous, converged, ‘always on’ connectivity. On the other hand, enhanced legal certainty for broadband investment could justify a more neutrality-oriented approach to traffic management practices on the Internet. The author proposes a new approach to Internet regulation which, altogether, will lead to a more balanced and sustainable model for the future, without jeopardising user freedom.

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In the overall negotiations on the Transatlantic Trade and Investment Partnership (TTIP), the digital chapter appears to be growing in importance. This is due to several factors, including the recent Datagate scandal that undermined trust between the negotiating parties and led to calls to suspend the US-EU Safe Harbour agreement as well as the furious debate currently ongoing in both legal systems on key issues such as policies to encourage broadband infrastructure deployment, network neutrality policies and the application of competition policy in cyberspace. This paper explores the current divergences between the two legal systems on these key issues and discusses possible scenarios for the ultimate agreement to be reached in the TTIP: from a basic, minimal agreement (which would essentially include e-labelling and e-accessibility measures) to more ambitious scenarios on network neutrality, competition rules, privacy and interoperability measures.

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Presentation made by Pierre Sauvé and Anirudh Shingal at the Asian International Economists Network (AIEN) Workshop, Asian Development Bank, Manila.

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"January 2003."

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Thesis (Ph.D.)--University of Washington, 2016-06

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Promoted as the key policy response to unemployment, the Job Network constitutes an array of interlocking processes that position unemployed people as `problems' in need of remediation. Unemployment is presented as a primary risk threatening society, and unemployed people are presented as displaying various degrees of riskiness. The Job Seeker Classification Instrument (JSCI) is a `technology' employed by Centrelink to assess `risk' and to determine the type of interaction that unemployed people have with the job Network. In the first instance, we critically examine the development of the JSCI and expose issues that erode its credibility and legitimacy. Second, employing the analytical tools of discourse analysis, we show how the JSCI both assumes and imposes particular subject identities on unemployed people. The purpose of this latter analysis is to illustrate the consequences of the sorts of technologies and interventions used within the job Network.