Results 11 to 20 of about 45,190 (303)

Neural oscillations during conditional associative learning [PDF]

open access: yesNeuroImage, 2017
AbstractAssociative learning requires mapping between complex stimuli and behavioural responses. When multiple stimuli are involved, conditional associative learning is a gradual process with learning based on trial and error. It is established that a distributed network of regions track associative learning, however the role of neural oscillations in ...
Clarke, Alex   +2 more
openaire   +2 more sources

Minimality Condition and Atmospheric Neutrino Oscillations [PDF]

open access: yesPhysical Review Letters, 1998
A structure is proposed for the mass matrices of the quarks and leptons that arises in a natural way from the assumption that the breaking of SO(10) gauge symmetry is achieved by the smallest possible set of vacuum expectation values. This structure explains well many features of the observed spectrum of quarks and leptons.
Albright, Carl H.   +2 more
openaire   +2 more sources

Condition for minimal harmonic oscillator action [PDF]

open access: yesAmerican Journal of Physics, 2017
We provide an elementary proof that the action for the physical trajectory of the one-dimensional harmonic oscillator is guaranteed to be a minimum if and only if τ<π/ω, where τ is the elapsed time and ω is the oscillator's natural frequency.
openaire   +2 more sources

Circadian regulation of dentate gyrus excitability mediated by G-protein signaling

open access: yesCell Reports, 2023
Summary: The central circadian regulator within the suprachiasmatic nucleus transmits time of day information by a diurnal spiking rhythm driven by molecular clock genes controlling membrane excitability.
Jose Carlos Gonzalez   +8 more
doaj   +1 more source

The Impact of Madden - Julian Oscillation and Sea Surface Temperature Process Interaction on Rainfall Variability During Rainy Season: A Case Study in East Nusa Tenggara, Indonesia [PDF]

open access: yesE3S Web of Conferences, 2023
Most studies of the impact of sea surface temperature (SST) have explored rainfall in a part of Indonesia. This paper takes a different approach and explores the impact of air-sea coupling interaction between Madden-Julian Oscillation (MJO) and SST on ...
Sudirman Sudirman   +4 more
doaj   +1 more source

Necessary and Sufficient Conditions for Oscillations

open access: yesThe American Mathematical Monthly, 1983
(1983). Necessary and Sufficient Conditions for Oscillations. The American Mathematical Monthly: Vol. 90, No. 9, pp. 637-640.
Ladas, G.   +2 more
openaire   +2 more sources

Half-linear Euler differential equation and its perturbations

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2016
We investigate oscillatory properties of perturbed half-linear Euler differential equation. We give an alternative proof (simpler and more straightforward) of the main result of [O. Došlý, H. Funková, Abstr. Appl. Anal. 2012, Art. ID 738472] and we prove
Ondrej Dosly
doaj   +1 more source

An Adaptive-to-Model Test for Parametric Functional Single-Index Model

open access: yesMathematics, 2023
Model checking methods based on non-parametric estimation are widely used because of their tractable limiting null distributions and being sensitive to high-frequency oscillation alternative models.
Lili Xia, Tingyu Lai, Zhongzhan Zhang
doaj   +1 more source

Conditional oscillation of half-linear Euler-type dynamic equations on time scales

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2015
We investigate second-order half-linear Euler-type dynamic equations on time scales with positive periodic coefficients. We show that these equations are conditionally oscillatory, i.e., there exists a sharp borderline (a constant given by the ...
Petr Hasil, J. Vítovec
doaj   +1 more source

Estimating extreme flood events – assumptions, uncertainty and error [PDF]

open access: yesProceedings of the International Association of Hydrological Sciences, 2015
Hydrological extremes are amongst the most devastating forms of natural disasters both in terms of lives lost and socio-economic impacts. There is consequently an imperative to robustly estimate the frequency and magnitude of hydrological extremes ...
S. W. Franks, C. J. White, M. Gensen
doaj   +1 more source

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