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The recent success of online social networks hints at the general interest in socio-aware, user-centric networking applications. At the same time, mobile consumer devices are becoming both more powerful and more widespread. As an implication of these trends, user-centric networking can be realized directly between the users' devices, i.e. without depending(More)
We study the rectification of voltage fluctuations in a system consisting of two Coulomb-coupled quantum dots. The first quantum dot is connected to a reservoir where voltage fluctuations are supplied and the second one is attached to two separate leads via asymmetric and energy-dependent transport barriers. We observe a rectified output current through the(More)
—Mobile devices like laptops or smartphones are getting more and more powerful, but still these devices are mainly used to access services, which are provided by centralized servers in the Internet. We argue that the full potential of such mobile devices could be unfold if these devices would provide services like instant messaging or file transfer(More)
—Structured peer-to-peer systems—also known as key-based routing protocols—offer a base for a broad range of applications. In the past, different topology adaptation mechanisms for minimizing key-based routing latencies were proposed and deployed with several today's state-of-the-art protocols. In this paper we introduce coordinate-based routing (CBR), a(More)
We present <i>SnapApp</i>, a novel unlock concept for mobile devices that reduces authentication overhead with a time-constrained quick-access option. <i>SnapApp</i> provides two unlock methods at once: While PIN entry enables full access to the device, users can also bypass authentication with a short sliding gesture (<i>"Snap"</i>). This grants access for(More)
Electronic circuits composed of one or more elements with inherent memory, that is, memristors, memcapacitors, and meminductors, offer lower circuit complexity and enhanced functionality for certain computational tasks. Networks of these elements are proposed for novel computational paradigms that rely on information processing and storage on the same(More)
ChIP-seq experiments detect the chromatin occupancy of known transcription factors in a genome-wide fashion. The comparisons of several species-specific ChIP-seq libraries done for different transcription factors have revealed a complex combinatorial and context-specific co-localization behavior for the identified binding regions. In this study we have(More)