Results 91 to 100 of about 1,450,703 (382)
Hill's Equation with Random Forcing Parameters: The Limit of Delta Function Barriers
, 2009 This paper considers random Hill's equations in the limit where the periodic forcing function becomes a Dirac delta function. For this class of equations, the forcing strength $q_k$, the oscillation frequency $\af_k$, and the period are allowed to vary ...
Abramowitz M. +6 more
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On linear matrix differential equations
Advances in Applied Mathematics, 2007 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Background Poststroke fatigue (PSF) and frailty share substantial overlap in their manifestations, yet previous research has yielded conflicting results due to the use of heterogeneous frailty assessment tools. Objective To evaluate the independent impact of frailty on PSF using a unified measurement system (Tilburg Frailty Indicator, TFI ...
Chuan‐Bang Chen +6 more
wiley +1 more source
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective Epilepsy is increasingly associated with immune dysregulation and inflammation. The T cell receptor (TCR), a key mediator of adaptive immunity, shows repertoire alterations in various immune‐mediated diseases. The unique TCR sequence serves as a molecular barcode for T cells, and clonal expansion accompanied by reduced overall TCR ...
Yong‐Won Shin +12 more
wiley +1 more source
New Analytical Approach for Computation of Band Structure in One-dimensional Periodic Media
, 2003 In this paper, we present a new approach for the exact calculation of band structure in one-dimensional periodic media, such as photonic crystals and superlattices, based on the recently reported differential transfer matrix method (DTMM).
Abdulhalim +25 more
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Oscillation of nonlinear systems of matrix differential equations [PDF]
Proceedings of the American Mathematical Society, 1971 For systems of matrix equations of the form \[ U ′ = A ( t , U , V ) V , V ′ = − B ( t , U , V ) U’ = A(t,U,V)V,\quad V’ = - B(t,U,V ...
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Variational Iteration Method for Solving Riccati Matrix Differential Equations
, 2017 Riccati matrix differential equation has long been known to be so difficult to solve analytically and/or numerically. In this connection, most of the recent studies are concerned with the derivation of the necessary conditions that ensure the existence ...
Khalid Hammood Al-jiz +2 more
semanticscholar +1 more source
Exosome Proteomics of SOD1D90A Mutation Suggest Early Disease Mechanisms, and FN1 as a Biomarker
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Amyotrophic lateral sclerosis (ALS) is a neuromuscular disease. Super oxide dismutase 1 (SOD1) gene mutations cause ALS, and the D90A mutation is associated with primarily upper motor neuron (UMN) loss. Objective Our goal is to reveal the early cellular events in ALS pathology and identify potential pharmacokinetic biomarkers, using well ...
Mukesh Gautam +6 more
wiley +1 more source
Non-adiabatic Quantum Vlasov Equation for Schwinger Pair Production
, 2011 Using Lewis-Riesenfeld theory, we derive an exact non-adiabatic master equation describing the time evolution of the QED Schwinger pair production rate for a general time-varying electric field.
Kim, Sang Pyo, Schubert, Christian
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More on Asymptotic Approximation for Matrix Differential Equations
Journal of Mathematical Analysis and Applications, 1999 By means of WKB-methods, an asymptotic approximation is obtained for the solution of \(Y''=t^hA(t)Y\), where \(h\) is a real number, and \(A(t)\) a Hermitean \(n\times n\)-matrix for real \(t\), which is analytic and invertible on \((a,\infty]\). The eigenvalues \(\lambda_j\) of \(t^hA\) shall satisfy \(1+(\lambda_j')^2/(16\lambda_j^3)\neq 0\) on \((a,\
Elias, Uri, Gingold, Harry
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