Results 51 to 60 of about 872,130 (322)
Relaxation oscillations and frequency entrainment in quantum mechanics [PDF]
Phys. Rev. E 102, 042213 (2020), 2017 Frequency entrainment of continuous-variable oscillators has to date been restrained to the weakly nonlinear regime. Here we overcome this bottleneck and extend frequency entrainment of quantum continuous-variable oscillators to arbitrary nonlinearities.
arxiv +1 more source
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACTObjectiveCerebrospinal fluid (CSF) orexin‐A has been suggested to be a biomarker of Alzheimer disease (AD). In both cognitively unimpaired healthy older adults and individuals with symptomatic AD, CSF orexin‐A is positively associated with CSF Aβ42, p‐tau181, and total tau (t‐tau) concentrations.
Ruijin Lu +13 more
wiley +1 more source
Oscillation death in coupled counter-rotating identical nonlinear oscillators [PDF]
Phys. Rev. E 100, 022209 (2019), 2019 We study oscillatory and oscillation suppressed phases in coupled counter-rotating nonlinear oscillators. We demonstrate the existence of limit cycle, amplitude death, and oscillation death, and also clarify the Hopf, pitchfork, and infinite period bifurcations between them. Especially, the oscillation death is a new type of oscillation suppressions of
arxiv +1 more source
Stimulus-specific neuronal oscillations in orientation columns of cat visual cortex.
Proceedings of the National Academy of Sciences of the United States of America, 1989 In areas 17 and 18 of the cat visual cortex the firing probability of neurons, in response to the presentation of optimally aligned light bars within their receptive field, oscillates with a peak frequency near 40 Hz.
C. Gray, W. Singer
semanticscholar +1 more source
Cerebello‐Prefrontal Connectivity Underlying Cognitive Dysfunction in Spinocerebellar Ataxia Type 2
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective Spinocerebellar ataxia type 2 (SCA2) is a hereditary cerebellar degenerative disorder, with motor and cognitive symptoms. The constellation of cognitive symptoms due to cerebellar degeneration is named cerebellar cognitive affective syndrome (CCAS), which has increasingly been recognized to profoundly impact patients' quality of life;
Ami Kumar +7 more
wiley +1 more source
Cooperative dynamics in coupled systems of fast and slow phase oscillators [PDF]
, 2016 We propose a coupled system of fast and slow phase oscillators. We observe two-step transitions to quasi-periodic motions by direct numerical simulations of this coupled oscillator system. A low-dimensional equation for order parameters is derived using the Ott-Antonsen ansatz.
arxiv +1 more source
Signal amplification by unidirectional coupling of oscillators [PDF]
2013 Phys. Scr. 88 015010, 2014 We report our investigation on the input signal amplification in unidirectionally coupled monostable Duffing oscillators in one- and two-dimensions with first oscillator alone driven by a weak periodic signal. Applying a perturbation theory we obtain a set of nonlinear equations for the response amplitude of the coupled oscillators.
arxiv +1 more source
Neutrino Oscillations and Non-standard Interactions [PDF]
Frontiers of Physics, 2017 Current neutrino experiments measure the neutrino mixing parameters with an unprecedented accuracy. The upcoming generation of experiments will be sensitive to subdominant effects that can give information on the unknown neutrino parameters: the Dirac CP-
Y. Farzan, M. Tórtola
semanticscholar +1 more source
Abnormal Synchronization Between Cortical Delta Power and Ripples in Hippocampal Sclerosis
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective Discriminating between epileptogenic and physiological ripples in the hippocampus is important for identifying epileptogenic (EP) zones; however, distinguishing these ripples on the basis of their waveforms is difficult. We hypothesized that the nocturnal synchronization of hippocampal ripples and cortical delta power could be used ...
Takamitsu Iwata +10 more
wiley +1 more source
The Journal of Engineering, 2019 Wind turbines should have fault ride through capability, and also it can provide damping for the power grid by improving the control strategy. However, the currently corresponding control strategy is designed independent for the fault voltage through ...
Haiyan Tang +3 more
doaj +1 more source