Results 81 to 90 of about 1,112,638 (351)

Phase oscillator model for noisy oscillators [PDF]

open access: yesThe European Physical Journal Special Topics, 2017
The Kuramoto model has become a paradigm to describe the dynamics of nonlinear oscillator under the influence of external perturbations, both deterministic and stochastic. It is based on the idea to describe the oscillator dynamics by a scalar differential equation, that defines the time evolution for the phase of the oscillator.
openaire   +4 more sources

Backward bifurcation and oscillations in a nested immuno-eco-epidemiological model

open access: yesJournal of Biological Dynamics, 2018
This paper introduces a novel partial differential equation immuno-eco-epidemiological model of competition in which one species is affected by a disease while another can compete with it directly and by lowering the first species' immune response to the
Michael Barfield   +3 more
doaj   +1 more source

Oscillatory Correlates of Visual Consciousness

open access: yesFrontiers in Psychology, 2017
Conscious experiences are linked to activity in our brain: the neural correlates of consciousness (NCC). Empirical research on these NCCs covers a wide range of brain activity signals, measures, and methodologies.
Stefano Gallotto   +7 more
doaj   +1 more source

Equivalence of quantum harmonic oscillators and classical oscillators subject to random forces [PDF]

open access: yesarXiv, 2020
We show that the Schr\"{o}dinger equation for the quantum harmonic oscillator can be derived as an approximation to the Newtonian mechanics of a classical harmonic oscillator subject to a random force for time intervals $O( m / \hbar)$, when $\hbar / m \ll 1$.
arxiv  

Using a Supramolecular Approach to Engineer Modular Hydrogel Platforms for Culturing Protoplasts – from General Tissue Engineering to Cellular Agriculture

open access: yesAdvanced Biology, EarlyView.
Using supramolecular monomers, various hydrogel culture systems were formulated to culture protoplasts; including 2D, 2.5D, and 3D hydrogels. Depending on the culture platform, bioactive functionalization led to protoplast enlargement (2D and 2.5D) or plasmolysis (3D). This work shows the potential to modularly engineer synthetic platforms for cellular
Maritza M. Rovers   +3 more
wiley   +1 more source

Pulsed Out of Awareness: EEG Alpha oscillations represent a pulsed inhibition of ongoing cortical processing

open access: yesFrontiers in Psychology, 2011
Alpha oscillations are ubiquitous in the brain, but their role in cortical processing remains a matter of debate. Recently, evidence has begun to accumulate in support of a role for alpha oscillations in attention selection and control.
Kyle Elliott Mathewson   +5 more
doaj   +1 more source

Mechanisms of Increasing Weld Depth during Temporal Power Modulation in High‐Power Laser Beam Welding

open access: yesAdvanced Engineering Materials, EarlyView.
Temporal power modulation increases weld depth in high‐power laser beam welding of dissimilar round bars by nearly 20% compared to same average continuously welded welding power. The mechanism of action also applies to sheet welding and depends on the inertia of keyhole depth for the modulated laser beam power.
Jan Grajczak   +7 more
wiley   +1 more source

Coherent magneto-elastic oscillations in superfluid magnetars

open access: yes, 2016
We study the effect of superfluidity on torsional oscillations of highly magnetised neutron stars (magnetars) with a microphysical equation of state by means of two-dimensional, magnetohydrodynamical- elastic simulations. The superfluid properties of the
Cerdá-Durán, Pablo   +4 more
core   +1 more source

Oscillators and Oscillations in the Basal Ganglia [PDF]

open access: yesThe Neuroscientist, 2014
What is the meaning of an action potential? There must be different answers for neurons that fire spontaneously, even in the absence of synaptic input, and those driven to fire from a resting membrane potential. In spontaneously firing neurons, the occurrence of the next action potential is guaranteed; only variations in its timing can carry the ...
openaire   +2 more sources

Spatiotemporal dynamics of word processing in the human brain

open access: yesFrontiers in Neuroscience, 2007
We examined the spatiotemporal dynamics of word processing by recording the electrocorticogram (ECoG) from the lateral frontotemporal cortex of neurosurgical patients chronically implanted with subdural electrode grids.
Ryan T Canolty   +15 more
doaj   +1 more source

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