503 research outputs found
Biological Clock Rhythm Regulates Viral Resistance of Human Bodies
Virus has caused great distress to human health. Based on the lack of specific target sites and therapy of various viruses, this article highlights circadian rhythm, the biological clock that tells the body to do the correct thing according to the time, as a significant part in regulating human resistance to virus. Also, it summarizes how some core clock genes within human body regulate the intrusion and the replication of several kinds of viruses, together with the corresponding regulating methods to change the clock gene levels in dealing with the infection. After comparing the methods, it then comes to a conclusion which underlines the generality of REV-ERB in rejecting almost all of the viruses questioned. It regards applying REV-ERB enhancers like SR9009 and GSK4112 in a dose-dependent manner as an effective direction in designing relevant therapies. Besides, it puts circadian rhythm as an efficient researching direction for the later researches for other kinds of viruses
Human-robot co-carrying using visual and force sensing
In this paper, we propose a hybrid framework using visual and force sensing for human-robot co-carrying tasks. Visual sensing is utilized to obtain human motion and an observer is designed for estimating control input of human, which generates robot's desired motion towards human's intended motion. An adaptive impedance-based control strategy is proposed for trajectory tracking with neural networks (NNs) used to compensate for uncertainties in robot's dynamics. Motion synchronization is achieved and this approach yields a stable and efficient interaction behavior between human and robot, decreases human control effort and avoids interference to human during the interaction. The proposed framework is validated by a co-carrying task in simulations and experiments
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