منابع مشابه
Nomadic computing (keynote address)
Nomadic computing is a phenomenon in computing and communications that is spreading rapidly. At this stage of its technology, the key problems and the basic understanding of its underlying principles are only beginning to be identified. Analysis and design tools are needed to assist in its development. In this paper, we discuss the nature of the tools and what one might look for in the way of a...
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I discuss in these lectures vortex-like classical solutions to the equations of motion of gauge theories with spontaneous symmetry breaking. Starting from the Nielsen-Olesen ansatz for the Abelian Higgs model, extensions to the case in which gauge dynamics is governed by Yang-Mills and Chern-Simons actions are presented. The case of semilocal vortices and also the coupling to axions is analyzed...
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leased glutamate could explain the electrophysiological changes observed during LTP that have been attributed to an increase in presynaptically released neurotrans-Long-term potentiation (LTP) is one of the most widely mitters. In support of the silent synapse hypothesis, studied topics in neuroscience today. LTP refers to a electrophysiological and immunohistochemical studies long-lasting incr...
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This paper presents three efforts to support children engaged in mobile and nomadic learning both in and out of the classroom. The HyConExplorer is a mobile, context-aware hypermedia system developed to help pupils access and produce digital content during project work in the field. The eBag is the equivalent of an electronic school bag and provides pupils access to their digital materials thro...
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In vielen Fällen sieht ein Anbieter von (Intranet-) Diensten und Daten in Benutzern mit wechselnden Aufenthaltsorten ein besonderes Gefährdungspotential, das er dadurch zu minimieren trachtet, daß er aus dem jeweiligen Aufenthaltsort bestimmte Konsequenzen für die Autorisierung bzw. für die spezielle Art und Weise, in der ein Dienst zur Verfügung gestellt wird, ableiten möchte. In diesem Aufsat...
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ژورنال
عنوان ژورنال: Nature
سال: 1994
ISSN: 0028-0836,1476-4687
DOI: 10.1038/371746a0