Results 41 to 50 of about 614,864 (203)

A nested bistable module within a negative feedback loop ensures different types of oscillations in signaling systems

open access: yesScientific Reports, 2023
In this article, we consider a double phosphorylation cycle, a ubiquitous signaling component, having the ability to display bistability, a behavior strongly related to the existence of positive feedback loops.
Juan Ignacio Marrone   +2 more
doaj   +1 more source

Neuronal oscillations enhance stimulus discrimination by ensuring action potential precision [PDF]

open access: yes, 2006
Although oscillations in membrane potential are a prominent feature of sensory, motor, and cognitive function, their precise role in signal processing remains elusive.
Margrie, Troy W   +21 more
core   +1 more source

Physical modeling of the rock bolt interaction with the rock massif [PDF]

open access: yesE3S Web of Conferences, 2019
The results of the physical modeling of the “rock bolt – rock massif” system are presented. The characteristics of rock bolt free oscillations depending on the degree of its clamping and tension were studied on special test benches.
Skipochka Serhii   +3 more
doaj   +1 more source

Pentatonic sequences and monaural beats to facilitate relaxation: an EEG study

open access: yesFrontiers in Psychology
IntroductionIn two studies we investigated if specific acoustic stimulations could be more effective to induce a relaxation response in comparison to silence. Acoustic stimulations included monaural beats and musical sequences based on a pentatonic scale.
Marco Costa   +5 more
doaj   +1 more source

Analytic Characterization of the Dynamic Regimes of Quantum-Dot Lasers

open access: yesPhotonics, 2015
We present analytic treatment of the three different dynamic regimes found in quantum-dot laser turn-on and modulation dynamics. A dynamic coupling, and thus density-dependent scattering lifetimes between dots and reservoir, are identified to be crucial ...
Benjamin Lingnau, Kathy Lüdge
doaj   +1 more source

Modeling the Intermittent Lava Lake Drops Occurring Between 2015 and 2021 at Nyiragongo Volcano

open access: yesGeophysical Research Letters, 2023
Between 2015 and 2021, Nyiragongo's lava lake level experienced a linear increase punctuated by fast intermittent drops. These drops occurred synchronously to seismic swarm at approximately 15 km below the surface and extending laterally NE from the ...
D. Walwer   +5 more
doaj   +1 more source

Analysis of sawtooth relaxation oscillations in tokamaks [PDF]

open access: yes, 1982
Sawtooth relaxation oscillations are analyzed using the Kadomtsev's disruption model and a thermal relaxation model. The sawtooth period is found to be very sensitive to the thermal conduction loss.
McGuire, K.   +5 more
core   +1 more source

Oscillations pendulaires et de relaxation

open access: yes, 1951
Discussion de la définition des oscillations de relaxation de van der Pol. Cette définition ne s'applique pas à la plupart des oscillations décrites sous ce nom, qui s'opposent aux oscillations pendulaires par leur caractère d'irréversibilité.
M. R. Fortrat
core   +1 more source

Disrupted dopamine transmission and the emergence of exaggerated beta oscillations in subthalamic nucleus and cerebral cortex [PDF]

open access: yes, 2008
In the subthalamic nucleus (STN) of Parkinson’s disease (PD) patients, a pronounced synchronization of oscillatory activity at beta frequencies (15–30 Hz) accompanies movement difficulties.
Sharott, A   +7 more
core   +1 more source

Mixed-mode oscillations with multiple time scales [PDF]

open access: yes, 2010
Mixed-mode oscillations (MMOs) are trajectories of a dynamical system in which there is an alternation between oscillations of distinct large and small amplitudes.
Desroches, MF   +5 more
core  

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