Results 41 to 50 of about 81,695 (282)

Asymptotic and oscillatory behavior of higher order quasilinear delay differential equations

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2012
In the paper, we offer such generalization of a lemma due to Philos (and partially Staikos), that yields many applications in the oscillation theory. We present its disposal in the comparison theory and we establish new oscillation criteria for $n-$th ...
Blanka Baculíková, Jozef Džurina
doaj   +1 more source

Oscillation of higher-order differential equations with distributed delay

open access: yesJournal of Inequalities and Applications, 2019
This paper deals with the oscillation properties of higher-order nonlinear differential equations with distributed delay [b(ℓ)(y(n−1)(ℓ))γ]′+∫cdq(ℓ,ξ)yγ(g(ℓ,ξ))d(ξ)=0,ℓ≥ℓ0, $$ \bigl[ b ( \ell ) \bigl( y^{ ( n-1 ) } ( \ell ) \bigr) ^{\gamma} \bigr ...
O. Bazighifan, E. M. Elabbasy, O. Moaaz
doaj   +1 more source

Parietal Gamma Band Oscillation Induced by Self-Hand Recognition

open access: yesBrain Sciences, 2022
Physiological studies have shown that self-body images receive unique recognition processing in a wide range of brain areas, from the frontal lobe to the parietal-occipital cortex.
Masaya Ueda   +6 more
doaj   +1 more source

Cooperation and competition of gamma oscillation mechanisms. [PDF]

open access: yesJ Neurophysiol, 2016
Oscillations of neuronal activity in different frequency ranges are thought to reflect important aspects of cortical network dynamics. Here we investigate how various mechanisms that contribute to oscillations in neuronal networks may interact.
Viriyopase A, Memmesheimer RM, Gielen S.
europepmc   +4 more sources

Gamma oscillations in cognitive disorders

open access: yesCurrent Opinion in Neurobiology, 2018
Gamma oscillations (∼25-100 Hz) are believed to play a role in cognition. Accordingly, aberrant gamma oscillations have been observed in several cognitive disorders, including Alzheimer's disease and Fragile X syndrome. Here, we review how recent results showing abnormal gamma rhythms in Alzheimer's disease and Fragile X syndrome help reveal links ...
Alexandra J, Mably, Laura Lee, Colgin
openaire   +2 more sources

Neural oscillation in low-rank SNNs: bridging network dynamics and cognitive function

open access: yesFrontiers in Computational Neuroscience
Neural oscillation, particularly gamma oscillation, are fundamental to cognitive processes such as attention, perception, and decision-making. Experimental studies have shown that the phase of gamma oscillation modulates neuronal response selectivity ...
Bin Li   +5 more
doaj   +1 more source

Lepton flavor violation in lopsided models and a neutrino mass model [PDF]

open access: yes, 2002
A widely adopted theoretical scheme to account for the neutrino oscillation phenomena is the see-saw mechanism together with the ``lopsided'' mass matrices, which is generally realized in the framework of supersymmetric grand unification.
Bi, Xiao-Jun
core   +2 more sources

In sync: gamma oscillations and emotional memory [PDF]

open access: yesFrontiers in Behavioral Neuroscience, 2013
Emotional experiences leave vivid memories that can last a lifetime. The emotional facilitation of memory has been attributed to the engagement of diffusely projecting neuromodulatory systems that enhance the consolidation of synaptic plasticity in regions activated by the experience.
Headley, Drew B., Paré, Denis
openaire   +3 more sources

Specific entrainment of mitral cells during gamma oscillation in the rat olfactory bulb. [PDF]

open access: yesPLoS Computational Biology, 2009
Local field potential (LFP) oscillations are often accompanied by synchronization of activity within a widespread cerebral area. Thus, the LFP and neuronal coherence appear to be the result of a common mechanism that underlies neuronal assembly formation.
François O David   +4 more
doaj   +1 more source

Dynamics of Fluid Vesicles in Oscillatory Shear Flow

open access: yes, 2009
The dynamics of fluid vesicles in oscillatory shear flow was studied using differential equations of two variables: the Taylor deformation parameter and inclination angle $\theta$. In a steady shear flow with a low viscosity $\eta_{\rm {in}}$ of internal
Abkarian M.   +52 more
core   +1 more source

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