Results 121 to 130 of about 1,429,804 (373)

Application of Differential Equations in Enzyme Kinetics

open access: yesChemical Engineering Transactions, 2018
This paper discusses the application of simplified differential transformation method in the solution of nonlinear differential equations and the application of characteristic set method in the analysis of enzyme dynamic system.
Caihong Fan, Ping Li, Yingzhen Xue
doaj   +1 more source

Nerve Excitability in Asymptomatic Carriers and Amyotrophic Lateral Sclerosis Patients With C9orf72

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective We investigated the effects of C9orf72 mutation carriership on peripheral nerve excitability in asymptomatic individuals from families with a history of C9orf72 amyotrophic lateral sclerosis (ALS) and patients. Methods We included 47 asymptomatic individuals from families with a history of C9orf72 ALS, of whom 23 were carriers (C9 ...
Diederik J. L. Stikvoort García   +3 more
wiley   +1 more source

Matrix generalizations of integrable systems with Lax integro-differential representations

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2012
We found matrix integro-differential Lax representations forDavey-Stewartson systems (DS-I, DS-II, DS-III), (2+1)-dimensionalgeneralizations of Chen-Lee-Liu equation and its higher symmetries.In particular, we obtain (2+1)-dimensional generalizations ...
Sydorenko Yu.M., Chvartatskyi O.I.
doaj  

On $\Psi$-stability of nonlinear Lyapunov matrix differential equations

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2009
We prove necessary and sufficient conditions for $\Psi -$ (uniform) stability of the trivial solution of a nonlinear Lyapunov matrix differential equation.
Aurel Diamandescu
doaj   +1 more source

On matrix majorants and minorants, with applications to differential equations

open access: yesLinear Algebra and its Applications, 1983
AbstractSome tools of linear algebra are collected and developed for potential use in the analysis of stiff differential equations. Bounds for the triangular factors of a large matrix are given in terms of the triangular factors of an associated “minorant” matrix of lower order.
openaire   +2 more sources

Systemic T Cell Receptor Profiling Reveals Adaptive Immune Activation and Potential Immune Signatures of Diagnosis and Brain Atrophy in Epilepsy

open access: yesAnnals 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

Puzzles in pipes with negative curvature: from the Webster PDE to stable numerical simulation in real time [PDF]

open access: yes, 2009
Minimal realizations of a class of delay-differential systems are derived for the digital simulation of waveguides, modelled by the Webster horn equation. Studying their stability is an interesting issue, since negative curvatures could lead to unstable
Hélie, Thomas   +2 more
core   +1 more source

Differential equations and matrix inequalities on isospectral families

open access: yesLinear Algebra and its Applications, 1994
The author develops a set of inequalities that bounds the size of \(\langle[X, N],[X,M]\rangle\) in terms of eigenvalues of skew-Hermitian matrices \(X\), \(M\) and \(N\). These results apply to elements of matrix Lie algebras.
openaire   +2 more sources

Exosome Proteomics of SOD1D90A Mutation Suggest Early Disease Mechanisms, and FN1 as a Biomarker

open access: yesAnnals 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

Extrapolation methods for first order ordinary differential equations [PDF]

open access: yes, 1980
Given a system of fist order differential equations, whose coefficient matrix has constant elements, with initial conditions specified, a family of extrapolating algorithms based on Pade approximants to the exponential function is developped.
Twizell, E H
core  

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