Results 71 to 80 of about 8,273,887 (381)

On the Oscillation of Second-Order Nonlinear Neutral Delay Dynamic Equations on Time Scales

open access: yes, 2016
Based on Riccati transformation and the inequality technique, we establish some new sufficient conditions for oscillation of the second-order neutral delay dynamic equations on time scales. Our results not only extend and improve some known theorems, but
Quanxin Zhang, Xia Song, Li Gao
semanticscholar   +1 more source

Sobolev Type Fractional Dynamic Equations and Optimal Multi-Integral Controls with Fractional Nonlocal Conditions [PDF]

open access: yes, 2014
In We prove existence and uniqueness of mild solutions to Sobolev type fractional nonlocal dynamic equations in Banach spaces. The Sobolev nonlocal condition is considered in terms of a Riemann-Liouville fractional derivative.
A. Debbouche, Delfim F. M. Torres
semanticscholar   +1 more source

Non-stationary oscillations of sandwich plates under local dynamic loading [PDF]

open access: yes, 2003
The paper addresses the elastic response of composite sandwich panels to local\ud dynamic loading. The plane and axisymmetric formulations are considered; no\ud overall bending is assumed.
Koissin, Vitaly   +3 more
core   +1 more source

Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions

open access: yesFEBS Letters, EarlyView.
We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva   +10 more
wiley   +1 more source

Nonlinear dynamic inequalities of Gronwall-Bellman type on time scales

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2011
The main aim of this paper is to establish some new explicit bounds of solutions of a certain class of nonlinear dynamic inequalities (with and without delays) of Gronwall-Bellman type on a time scale $T$ which is unbounded above.
Samir Saker
doaj   +1 more source

Study of dynamic response of elastic space stations [PDF]

open access: yes, 1967
Analytical procedure and the requisite computer programs compute the dynamic responses of two large elastic space stations. The linearized equations of motion are derived from lagranges equations.
Kamrath, P.
core   +1 more source

Dynamic equations for three different qudits in a magnetic field

open access: yes, 2009
A closed system of equations for the local Bloch vectors and spin correlation functions of three magnetic qudits, which are in an arbitrary, time-dependent, external magnetic field, is obtained using decomplexification of the Liouville-von Neumann ...
Carnot S.   +3 more
core   +1 more source

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

open access: yesFEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li   +2 more
wiley   +1 more source

An Explicit Formulation of Singularity-Free Dynamic Equations of Mechanical Systems in Lagrangian Form---Part Two: Multibody Systems [PDF]

open access: yesModeling, Identification and Control, 2012
This paper presents the explicit dynamic equations of multibody mechanical systems. This is the second paper on this topic. In the first paper the dynamics of a single rigid body from the Boltzmann--Hamel equations were derived.
Pål Johan From
doaj   +1 more source

Wilson–Cowan Equations for Neocortical Dynamics [PDF]

open access: yesThe Journal of Mathematical Neuroscience, 2016
In 1972-1973 Wilson and Cowan introduced a mathematical model of the population dynamics of synaptically coupled excitatory and inhibitory neurons in the neocortex. The model dealt only with the mean numbers of activated and quiescent excitatory and inhibitory neurons, and said nothing about fluctuations and correlations of such activity.
Cowan, Jack D.   +2 more
openaire   +3 more sources

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