Oscillations and noise drive many processes in biology, but how both affect the activity of the transcription factor nuclear factor κB (NF-κB) is not understood. Here, we observe that when NF-κB oscillations are entrained by periodic tumor necrosis factor (TNF) inputs in experiments, NF-κB exhibits jumps between frequency modes, a phenomenon we call "cellular mode-hopping." By comparing stochas...

IP-Video surveillance is a term used for a security system that allows the users to view, control and record video images. In its simplest way, it is composed of a camera and a computer, although most applications require more network devices. Video surveillance is being used in a lot of environments (banking, transportation, industry...) and each market has their own needs. In this paper, we d...

We consider a dynamic distributed caching system consisting of an “authoritative” server dispensing content only if the content fails to be found by searching an unstructured peer-to-peer system. In our model, the peers may not be fully cooperative, in probabilistic fashion, in this search process. We use a spectral approach to analyze the performance of this system, specifically the expected n...

We investigate a simple approach to compute a non-adiabatic thermal rate constant using the fewest switches surface hopping (FSSH) dynamics. We study the effects of both decoherence (using our augmented-FSSH (A-FSSH) algorithm) and forbidden hops over a large range of parameters, including high and low friction regimes, and weak and strong electronic coupling regimes. Furthermore, when possible...