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—In the traditional cooperative communication scenario , coordination is required among relay nodes to help data transmission through distributed signal transmission or coding techniques. For large cooperative networks, the overhead for coordination is huge and the synchronization among relays is very difficult. In this paper, we propose uncoordinated(More)
Human mesenchymal stem cells (MSCs) have therapeutic potential because of their ability to self-renew and differentiate into multiple tissues. However, senescence often occurs in MSCs when they are cultured in vitro and the molecular mechanisms underlying this effect remain unclear. In this study, we found that NAD-dependent protein deacetylase SIRT1 is(More)
—Lifetime extension is a key design issue for wireless sensor networks (WSN) with battery-operated nodes. Compared with direct transmission, transmission power can be significantly reduced by cooperative communication, because it can effectively mitigate multi-path fading by introducing space diversity. In this paper, BER analysis for M-PSK and M-QAM(More)
BACKGROUND The Warburg effect has been found in a wide spectrum of human cancers, however the underlying mechanisms are still unclear. This study aims to explore the role of cellular oxidative stress in relation to glycolysis and the Warburg effect in hepatoma cells. METHODS Various cell lines combining environmental hypoxia was used as an in vitro model(More)
—A novel individual-based alignment/repulsion algorithm is proposed in this note for a flock of multiple agents. With this algorithm, each individual repels its sufficiently close neighbors and aligns to the average velocity of its neighbors with moderate distances. In both mathematical analysis and numerical simulation, we prove that the algorithm(More)