Results 31 to 40 of about 914,486 (332)

Braided oscillators [PDF]

open access: yesJournal of Mathematical Physics, 2002
A generalized oscillator algebra is proposed and the braided Hopf algebra structure for this generalized oscillator is investigated. Using the solutions for the braided Hopf algebra structure, two types of braided Fibonacci oscillators are introduced. This leads to two types of braided Biedenharn–Macfarlane oscillators as special cases of the Fibonacci
openaire   +4 more sources

Ripple‐related firing of identified deep CA1 pyramidal cells in chronic temporal lobe epilepsy in mice

open access: yesEpilepsia Open, 2019
Summary Objective Temporal lobe epilepsy (TLE) is often associated with memory deficits. Reactivation of memory traces in the hippocampus occurs during sharp‐wave ripples (SWRs; 140‐250 Hz).
Ivan Marchionni   +3 more
doaj   +1 more source

Dependence of Working Memory on Coordinated Activity Across Brain Areas

open access: yesFrontiers in Systems Neuroscience, 2022
Neural signatures of working memory (WM) have been reported in numerous brain areas, suggesting a distributed neural substrate for memory maintenance.
Ehsan Rezayat   +4 more
doaj   +1 more source

Resonance in Bose-Einstein condensate oscillation from a periodic variation in scattering length [PDF]

open access: yes, 2003
Using the explicit numerical solution of the axially-symmetric Gross-Pitaevskii equation we study the oscillation of the Bose-Einstein condensate induced by a periodic variation in the atomic scattering length $a$. When the frequency of oscillation of $a$
  +35 more
core   +1 more source

Cooperative Dynamics of an Artificial Stochastic Resonant System

open access: yes, 2009
We have investigated cooperative dynamics of an artificial stochastic resonant system, which is a recurrent ring connection of neuron-like signal transducers (NST) based on stochastic resonance (SR), using electronic circuit experiments.
Badzey   +20 more
core   +1 more source

5A2--Theory of the optical parametric oscillator [PDF]

open access: yes, 1966
A formalism for describing optical parametric oscillation is developed. The theory is applied to the derivation of the oscillation threshold condition, power output, the Manley-Rowe conditions, index matching, and frequency ...
Louisell, W. H., Yariv, A.
core   +2 more sources

Scanning for oscillations

open access: yesJournal of Neural Engineering, 2015
Oscillations are an important aspect of brain activity, but they often have a low signal-to-noise ratio (SNR) due to source-to-electrode mixing with competing brain activity and noise. Filtering can improve the SNR of narrowband signals, but it introduces ringing effects that may masquerade as genuine oscillations, leading to uncertainty as to the true
Alain de Cheveigné   +2 more
openaire   +3 more sources

Spike oscillations [PDF]

open access: yesPhysical Review D, 2012
38 pages, 14 ...
Heinzle, J. Mark   +2 more
openaire   +3 more sources

The gut contractile organoid for studying the gut motility regulated by coordinating signals between interstitial cells of Cajal and smooth muscles

open access: yeseLife
The gut undergoes peristaltic movements regulated by intricate cellular interactions. How these interactions emerge in the developing gut remains poorly explored due to a lack of model system.
Rei Yagasaki   +8 more
doaj   +1 more source

Slowed alpha oscillations and percept formation in psychotic psychopathology

open access: yesFrontiers in Psychology, 2023
IntroductionPsychosis is in part defined by disturbances in perception. Recent investigations have implicated the speed of alpha oscillations observed in brain electrical activity as reflective of a sampling rate of the visual environment and perception.
Scott R. Sponheim   +4 more
doaj   +1 more source

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