Results 41 to 50 of about 104,422 (284)

Oscillation of odd order neutral delay differential equation [PDF]

open access: yesCzechoslovak Mathematical Journal, 1995
The authors consider the odd-order neutral delay differential equation (1) \((x(t) - \alpha x(t - \tau))^{(n)} + p(t) f(x(t - \sigma)) = 0\), where \(0 \leq \alpha < 1\), \(\tau, \sigma \in (0, \infty)\), \(p \in C ([0, \infty), (0, \infty))\), \(f \in C^1 (\mathbb{R}, \mathbb{R})\) such that \(f\) is increasing, \(xf(x) > 0\) for \(x \neq 0\).
openaire   +3 more sources

New Oscillation Results For Third-Order Half-Linear Neutral Differential Equations

open access: yesMathematics, 2020
The main purpose of this paper is to obtain criteria for the oscillation of all solutions of a third-order half-linear neutral differential equation.
K. S. Vidhyaa   +2 more
doaj   +1 more source

Control of unstable steady states in neutral time-delayed systems

open access: yes, 2008
We present an analysis of time-delayed feedback control used to stabilize an unstable steady state of a neutral delay differential equation. Stability of the controlled system is addressed by studying the eigenvalue spectrum of a corresponding ...
Blyuss, K. B.   +3 more
core   +2 more sources

Conserved structural motifs in PAS, LOV, and CRY proteins regulate circadian rhythms and are therapeutic targets

open access: yesFEBS Letters, EarlyView.
Cryptochrome and PAS/LOV proteins play intricate roles in circadian clocks where they act as both sensors and mediators of protein–protein interactions. Their ubiquitous presence in signaling networks has positioned them as targets for small‐molecule therapeutics. This review provides a structural introduction to these protein families.
Eric D. Brinckman   +2 more
wiley   +1 more source

A Note on Existence of Mild Solutions for Second-Order Neutral Integro-Differential Evolution Equations with State-Dependent Delay

open access: yesFractal and Fractional, 2021
This article is mainly devoted to the study of the existence of solutions for second-order abstract non-autonomous integro-differential evolution equations with infinite state-dependent delay.
Shahram Rezapour   +4 more
doaj   +1 more source

Minimizers with discontinuous velocities for the electromagnetic variational method

open access: yes, 2011
The electromagnetic two-body problem has \emph{neutral differential delay} equations of motion that, for generic boundary data, can have solutions with \emph{discontinuous} derivatives. If one wants to use these neutral differential delay equations with \
A. Bellen   +6 more
core   +1 more source

Exact observability and controllability for linear neutral type systems [PDF]

open access: yes, 2015
The problem of exact observability is analyzed for a wide class of neutral type systems by an infinite dimensional approach. The duality with the exact controllabil-ity problem is the main tool.
Rabah, Rabah, Sklyar, Grigory
core   +4 more sources

Hands‐on protocol for preparing water‐soluble fractions from agri‐food samples for NMR‐based metabolomics analysis

open access: yesFEBS Open Bio, EarlyView.
This research protocol outlines a workflow for nuclear magnetic resonance (NMR)‐based metabolomics in the agri‐food sector. Using two case studies—strawberry leaves (solid matrix) and wine (liquid matrix)—it details the procedures for sample preparation, data acquisition, and processing.
Andrea Fernández‐Veloso   +4 more
wiley   +1 more source

Hydroxychloroquine Associated With Lower Glomerular Filtration Rate Decline in Lupus Nephritis

open access: yesArthritis Care &Research, EarlyView.
Objective Hydroxychloroquine (HCQ) protects kidney function in lupus nephritis (LN) by preventing flares, yet some cohort studies show no significant benefit in kidney function with HCQ. Clarifying these conflicting findings by showing early and long‐term benefits of HCQ on kidney function preservation is critical.
Shivani Garg   +9 more
wiley   +1 more source

Asymptotic behavior of solutions of third-order neutral differential equations with discrete and distributed delay

open access: yesAIMS Mathematics, 2020
By refining the standard Riccati substitution technique, integral averaging technique and comparison principle, we obtain new oscillation and asymptotic behavior for a class of third-order neutral differential equations with discrete and distributed ...
M. Sathish Kumar, V. Ganesan
doaj   +1 more source

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