Results 101 to 110 of about 10,464,066 (302)

Relative Oscillation–Non-Oscillation Criteria for Perturbed Periodic Dirac Systems

Journal of Mathematical Analysis and Applications, 2000
The author considers radial Dirac operators and gives criteria on perturbations of the coefficients which ensure that the solutions to the perturbed problem are ``relatively nonoscillatory'' in the sense that the difference between the Prüfer angles of the solutions to the perturbed and unperturbed problems remains bounded.
openaire   +1 more source

Age‐Related Characteristics of SYT1‐Associated Neurodevelopmental Disorder

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objectives We describe the clinical manifestations and developmental abilities of individuals with SYT1‐associated neurodevelopmental disorder (Baker‐Gordon syndrome) from infancy to adulthood. We further describe the neuroradiological and electrophysiological characteristics of the condition at different ages, and explore the associations ...
Sam G. Norwitz, Josefine Eck, Joel S. Winston, Kate Baker   +3 more
wiley   +1 more source

Non-oscillation of second order linear self-adjoint nonhomogeneous difference equations [PDF]

Mathematica Bohemica, 2011
The author considers the linear second order difference equation \(\Delta (p_{n-1}\Delta y_{n-1})+q_ny_n=0\), the nonlinear nonhomogeneous second order difference equation \(\Delta (p_{n-1}\Delta y_{n-1})+q_ng(y_n)=f_{n-1}\), where \(f_n\geq 0\) or \(f_n\leq 0\) and \(ug(u)>0\) for \(u\neq 0\), and the linear third order difference equation \(y_{n+2 ...
openaire   +1 more source

Lessons Learned From a Delayed‐Start Trial of Modafinil for Freezing of Gait in Parkinson's Disease

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Freezing of gait (FOG) in people with Parkinson's disease (PwPD) is debilitating and has limited treatments. Modafinil modulates beta/gamma band activity in the pedunculopontine nucleus (PPN), like PPN deep brain stimulation. We therefore tested the hypothesis that Modafinil would improve FOG in PwPD.
Tuhin Virmani, Lakshmi Pillai, Reid D. Landes, Aliyah Glover, Shannon Doerhoff, Jennifer Kleiner, Mitesh Lotia, Rohit Dhall, Edgar Garcia‐Rill   +8 more
wiley   +1 more source

Neutrino mass and mixing parameters: A short review

, 2005
We present a brief review of the current status of neutrino mass and mixing parameters, based on a comprehensive phenomenological analysis of neutrino oscillation and non-oscillation searches, within the standard three-neutrino mixing framework.Comment ...
Fogli, G. L., Lisi, E., Marrone, A., Palazzo, A., Rotunno, A. M.   +4 more
core   +1 more source

Neutrino oscillations and signals in beta and 0nu2beta experiments

, 2002
Assuming Majorana neutrinos, we infer from oscillation data the expected values of the parameters m_{nu_e} and m_{ee} probed by beta and 0nu2beta-decay experiments.
Feruglio, Ferruccio, Strumia, Alessandro, Vissani, Francesco   +2 more
core   +3 more sources

Hopfield Neural Networks for Online Constrained Parameter Estimation With Time‐Varying Dynamics and Disturbances

International Journal of Adaptive Control and Signal Processing, EarlyView.
This paper proposes two projector‐based Hopfield neural network (HNN) estimators for online, constrained parameter estimation under time‐varying data, additive disturbances, and slowly drifting physical parameters. The first is a constraint‐aware HNN that enforces linear equalities and inequalities (via slack neurons) and continuously tracks the ...
Miguel Pedro Silva
wiley   +1 more source

Non-oscillating solutions to uncoupled Ermakov systems and the semi-classical limit [PDF]

Journal of Physics A: Mathematical and General, 2001
The amplitude-phase formulation of the Schr dinger equation is investigated within the context of uncoupled Ermakov systems, whereby the amplitude function is given by the auxiliary nonlinear equation. The classical limit of the amplitude and phase functions is analyzed by setting up a semiclassical Ermakov system.
openaire   +3 more sources

Current Tracking Adaptive Control of Brushless DC Motors

International Journal of Adaptive Control and Signal Processing, EarlyView.
In this paper, the current tracking for Brushless Direct Current motors is approached considering uncertainty in the parameters of the motor's model. An adaptive control scheme to compensate electrical parameters uncertainty is proposed without requiring any knowledge of the mechanical parameters.
Fernanda Ramos‐García, Axel Coronado‐Andrade, Gerardo Espinosa‐Pérez, Luis Alvarez‐Icaza   +3 more
wiley   +1 more source

Constraining the absolute neutrino mass scale and Majorana CP violating phases by future neutrinoless double beta decay experiments

, 2002
Assuming that neutrinos are Majorana particles, in a three generation framework, current and future neutrino oscillation experiments can determine six out of the nine parameters which fully describe the structure of the neutrino mass matrix.
Funchal, R. Zukanovich, Nunokawa, H., Teves, W. J. C.   +2 more
core   +1 more source