Results 31 to 40 of about 409 (155)

Scalable Computation of Topological Abstractions for Scalar Data

Computer Graphics Forum, EarlyView.
Abstract Topological data analysis has become an important tool for large scale scalar data analysis and visualization, efficiently extracting the inherent structure and features of interest of the data. However, with growing dataset sizes and complexity, it is increasingly becoming infeasible to compute topological abstractions of interest in serial ...
M. Will, J. Lukasczyk, J. Tierny, A. Gyulassy, G. H. Weber, H. Carr, C. Garth   +6 more
wiley   +1 more source

Oral Manifestations of Non Vascular Ehlers‐Danlos Syndrome Cross‐Sectional Study

Oral Diseases, EarlyView.
ABSTRACT Background Ehlers–Danlos syndromes are rare hereditary connective tissue disorders; however, their oral manifestations remain poorly characterized in molecularly confirmed individuals. The aim of this study was to describe the oral phenotype of patients with non‐vascular Ehlers‐Danlos syndromes compared to healthy controls.
Aude Grand, Benjamin P. J. Fournier, Grégoire Chevalier, Karelle Benistan, François Côme Ferré   +4 more
wiley   +1 more source

Modelling the time‐resolved modulations of cardiac activity in rats: A study on pharmacological autonomic stimulation

The Journal of Physiology, EarlyView.
Abstract figure legend Time‐resolved estimation of cardiac rhythmicity parameters. A pipeline is shown for the estimation of the fluctuating cardiac parameters, based on the Poincaré plot. The Poincaré plot illustrates the successive changes in interbeat intervals (IBI).
Diego Candia‐Rivera, Sofia Carrion‐Falgarona, Fabrizio de Vico Fallani, Mario Chavez   +3 more
wiley   +1 more source

Nonlinear Dynamic Analysis of Rotor Rub-Impact System

Shock and Vibration, 2019
A dynamic model of a double-disk rub-impact rotor-bearing system with rubbing fault is established. The dynamic differential equation of the system is solved by combining the numerical integration method with MATLAB.
Youfeng Zhu, Zibo Wang, Qiang Wang, Xinhua Liu, Hongyu Zang, Liang Wang   +5 more
doaj   +1 more source

Breathing irregularities and postnatal hypoxaemia in an experimental model of essential hypertension

The Journal of Physiology, EarlyView.
Abstract figure legend Neonatal spontaneously hypertensive rats (SHRs) exhibit inherent respiratory dysfunction in early life, including oscillatory breathing patterns and apnoeic events that cause oxygen desaturation and brain hypoxia, in addition to an impaired hypoxic ventilatory response.
Beatriz N. Vieira, Letícia R. Mendes, Sarah G. Mariano, Isabela P. Leirão, Emilson D. Pereira‐Junior, Milede H. Saraiva Paes, Pedro L. Katayama, Daniel B. Zoccal   +7 more
wiley   +1 more source

The Benjamin–Ono Equation in the Zero‐Dispersion Limit for Rational Initial Data: Generation of Dispersive Shock Waves

Communications on Pure and Applied Mathematics, Volume 79, Issue 9, Page 2107-2157, September 2026.
ABSTRACT The leading‐order asymptotic behavior of the solution of the Cauchy initial‐value problem for the Benjamin–Ono equation in L2(R)$L^2(\mathbb {R})$ is obtained explicitly for generic rational initial data u0$u_0$. An explicit asymptotic wave profile uZD(t,x;ε)$u^\mathrm{ZD}(t,x;\epsilon)$ is given, in terms of the branches of the multivalued ...
Elliot Blackstone, Louise Gassot, Patrick Gérard, Peter D. Miller   +3 more
wiley   +1 more source

On the integrability and dynamics of the Hide, Skeldon and Acheson differential system

Electronic Journal of Qualitative Theory of Differential Equations
The family of systems \begin{equation*} \dot{x}= x(y-1)-\beta z,\quad \dot{y}= \alpha (1-x^2)-\kappa y, \quad \dot{z}= x-\lambda z, \end{equation*} where $(x,y,z) \in \mathbb{R}^3$ and $\alpha$, $\beta$, $\kappa$, $\lambda$ are real parameters, was ...
Érika Diz-Pita, Jaume Llibre, M. Victoria Otero-Espinar, Claudia Valls   +3 more
doaj   +1 more source

Free semigroups of large critical exponent

Journal of Topology, Volume 19, Issue 3, September 2026.
Abstract For a convergence group equipped with an expanding coarse‐cocycle, we construct finitely generated free subsemigroups, which we call Bishop−−Jonessemigroups$\textit{Bishop--Jones semigroups}$, of critical exponent arbitrarily close to but strictly less than the critical exponent of the ambient group.
Aleksander Skenderi
wiley   +1 more source

Global phase portraits of quadratic systems with an ellipse and a straight line as invariant algebraic curves

Electronic Journal of Differential Equations, 2015
In this article we study a class of integrable quadratic systems and classify all its phase portraits. More precisely, we characterize the class of all quadratic polynomial differential systems in the plane having an ellipse and a straight line as ...
Jaume Llibre, Jiang Yu
doaj  

Radon transforms and the SYK model

Journal of High Energy Physics
Motivated by recent work on the Sachdev-Ye-Kitaev (SYK) model, we consider the effect of Radon or X-ray transformations, on the Laplace eigenfunctions in hyperbolic Bolyai-Lobachevsky space.
Michael Stone
doaj   +1 more source