Results 71 to 80 of about 1,391,367 (292)

Genetic attenuation of ALDH1A1 increases metastatic potential and aggressiveness in colorectal cancer

open access: yesMolecular Oncology, EarlyView.
Aldehyde dehydrogenase 1A1 (ALDH1A1) is a cancer stem cell marker in several malignancies. We established a novel epithelial cell line from rectal adenocarcinoma with unique overexpression of this enzyme. Genetic attenuation of ALDH1A1 led to increased invasive capacity and metastatic potential, the inhibition of proliferation activity, and ultimately ...
Martina Poturnajova   +25 more
wiley   +1 more source

Uniform stabilization for the Timoshenko beam by a locally distributed damping

open access: yesElectronic Journal of Differential Equations, 2003
We study the uniform stabilization of a Timoshenko beam by one control force. We prove that under, one locally distributed damping, the exponential stability for this system is assured if and only if the wave speeds are the ...
Abdelaziz Soufyane, Ali Wehbe
doaj  

On a logarithmic criterion for uniform polynomial stability

open access: yesAnnals of the West University of Timisoara: Mathematics and Computer Science, 2018
The paper presents a logarithmic criterion for uniform polynomial stability of evolution operators in Banach spaces. As applications, another four characterizations of uniform polynomial stability are obtained.
Boruga Rovana, Megan Mihail
doaj   +1 more source

On asymptotic output stability for delay differential systems [PDF]

open access: yesИзвестия высших учебных заведений: Прикладная нелинейная динамика
The purpose of this study is to obtain sufficient conditions for output asymptotic stability of nonlinear nonautonomous time-delay systems described by ordinary differential equations.
Sedova, Natalia Olegovna
doaj   +1 more source

Axisymmetric and cylindrical isostable structures - A concept [PDF]

open access: yes, 1971
Mathematical formulation, suitable for analytical design of structural networks with uniform local stability, yields idealized solutions for specific two-family ...
Hedgepeth, J. M.   +2 more
core   +1 more source

Network divergence analysis identifies adaptive gene modules and two orthogonal vulnerability axes in pancreatic cancer

open access: yesMolecular Oncology, EarlyView.
Tumors contain diverse cellular states whose behavior is shaped by context‐dependent gene coordination. By comparing gene–gene relationships across biological contexts, we identify adaptive transcriptional modules that reorganize into distinct vulnerability axes.
Brian Nelson   +9 more
wiley   +1 more source

Connections between Hyers-Ulam stability and uniform exponential stability of 2-periodic linear nonautonomous systems

open access: yesAdvances in Difference Equations, 2017
We prove that the system θ ˙ ( t ) = Λ ( t ) θ ( t ) $\dot{\theta}(t) =\Lambda(t)\theta(t)$ , t ∈ R + $t\in\mathbb{R}_{+}$ , is Hyers-Ulam stable if and only if it is uniformly exponentially stable under certain conditions; we take the exact solutions of
Akbar Zada   +3 more
doaj   +1 more source

COMP–PMEPA1 axis promotes epithelial‐to‐mesenchymal transition in breast cancer cells

open access: yesMolecular Oncology, EarlyView.
This study reveals that cartilage oligomeric matrix protein (COMP) promotes epithelial‐to‐mesenchymal transition (EMT) in breast cancer. We identify PMEPA1 (protein TMEPAI) as a novel COMP‐binding partner that mediates EMT via binding to the TSP domains of COMP, establishing the COMP–PMEPA1 axis as a key EMT driver in breast cancer.
Konstantinos S. Papadakos   +6 more
wiley   +1 more source

Maximum and minimum principles for nonlinear transport equations on discrete-space domains

open access: yesElectronic Journal of Differential Equations, 2014
We consider nonlinear scalar transport equations on the domain with discrete space and continuous time. As a motivation we derive a conservation law on these domains.
Jonas Volek
doaj  

On Stability of Linear Delay Differential Equations under Perron's Condition

open access: yesAbstract and Applied Analysis, 2011
The stability of the zero solution of a system of first-order linear functional differential equations with nonconstant delay is considered. Sufficient conditions for stability, uniform stability, asymptotic stability, and uniform asymptotic stability ...
J. Diblík, A. Zafer
doaj   +1 more source

Home - About - Disclaimer - Privacy