Results 61 to 70 of about 1,640,339 (295)
Delay-induced multiple stochastic resonances on scale-free neuronal networks [PDF]
Chaos 19 (2009) 023112, 2009 We study the effects of periodic subthreshold pacemaker activity and time-delayed coupling on stochastic resonance over scale-free neuronal networks. As the two extreme options, we introduce the pacemaker respectively to the neuron with the highest degree and to one of the neurons with the lowest degree within the network, but we also consider the case
arxiv +1 more source
Are physiological oscillations physiological?
The Journal of Physiology, EarlyView., 2023 Abstract figure legend Mechanisms and functions of physiological oscillations. Abstract Despite widespread and striking examples of physiological oscillations, their functional role is often unclear. Even glycolysis, the paradigm example of oscillatory biochemistry, has seen questions about its oscillatory function.
Lingyun (Ivy) Xiong, Alan Garfinkel
wiley +1 more source
Modeling Cardiac Pacemaker Malfunctions With the Virtual Heart Model [PDF]
, 2011 Implantable cardiac devices such as artificial pacemakers deliver therapies according to the timing information from the heart. Such devices work under the assumptions of perfect sensing, which are: (a) the pacemaker leads remain in place, and (b) the ...
Jiang, Zhihao, Mangharam, Rahul
core +2 more sources
Entrainment of randomly coupled oscillator networks by a pacemaker [PDF]
, 2004 Entrainment by a pacemaker, representing an element with a higher frequency, is numerically investigated for several classes of random networks which consist of identical phase oscillators. We find that the entrainment frequency window of a network decreases exponentially with its depth, defined as the mean forward distance of the elements from the ...
arxiv +1 more source
Possible evidence from the flaring activity of Sgr A* for a star at a distance of ~3.3 Schwarzscild radii from the blackhole [PDF]
2020, ApJ, 896, 74, 2020 The frequent flaring events in the X-ray and the NIR radiation of Sgr A* seem not to be periodic in time. However, statistical regularities, here termed "modulations by a pacemaker", are found in the recorded arrival times of both types of events. The characteristic time of the X-ray pacemaker is 149 min and that of the NIR pacemaker is 40 min.
arxiv +1 more source
Technique for implanting intramuscular electrodes in the diaphragm by videolaparoscopy in pigs [PDF]
Acta Cirúrgica Brasileira, 2016 PURPOSE: To describe a novel approach for implanting intramuscular electrodes in the diaphragm through videolaparoscopy. METHODS: We used twelve pigs for this videolaparoscopic technique, which permits at the same time to explore the diaphragm, to ...
Rodrigo Guellner Ghedini +8 more
doaj +2 more sources
Investigating the flow dynamics in the obstructed and stented ureter by means of a biomimetic artificial model. [PDF]
, 2014 Double-J stenting is the most common clinical method employed to restore the upper urinary tract drainage, in the presence of a ureteric obstruction. After implant, stents provide an immediate pain relief by decreasing the pressure in the renal pelvis (P)
Carugo, Dario +5 more
core +7 more sources
Self-organized stable pacemakers near the onset of birhythmicity [PDF]
, 2000 General amplitude equations for reaction-diffusion systems near to the soft onset of birhythmicity described by a supercritical pitchfork-Hopf bifurcation are derived. Using these equations and applying singular perturbation theory, we show that stable autonomous pacemakers represent a generic kind of spatiotemporal patterns in such systems.
arxiv +1 more source
Equilivest: A Robotic Vest to aid in Post-Stroke Dynamic Balance Rehabilitation [PDF]
arXiv, 2023 Stroke is a medical condition that can affect motor function, particularly dynamic balance. Biofeedback can aid in rehabilitation procedures which help patients to regain lost motor activity and recover functionality. In this work, we are presenting a robotic smart-vest device that can analyze Inertial Measurement Unit (IMU) data and assist in ...
arxiv
Advanced Biology, EarlyView.Extracellular vesicles (EVs) play a dual role in diagnostics and therapeutics, offering innovative solutions for treating cancer, cardiovascular, neurodegenerative, and orthopedic diseases. This review highlights EVs’ potential to revolutionize personalized medicine through specific applications in disease detection and treatment.
Farbod Ebrahimi +4 more
wiley +1 more source