Results 31 to 40 of about 4,930,166 (237)
Frontiers in Cardiovascular Medicine, 2022 BackgroundThere is a paucity of data about VAs clustered at the vicinity of the basal septum of the ventricle. We aimed to report and characterize the clinical and electrophysiological features of basal septum VAs and explore the systematic ablation ...
Linsheng Shi +11 more
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Robustness of periodic point free maps of the annulus
Topology and its Applications, 1996 This paper focuses on the construction of a diffeomorphism of the annulus into itself with no periodic points which has the property that, when composed with any sufficiently small rigid rotation, the resulting map also has no periodic points. This result imposes some limitations on strengthening the \(C^1\)-closing lemma of Pugh and Robinson even in ...
Hall, Glen R., Turpin, Mark
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Aortic annulus sizing using watershed transform and morphological approach for CT images [PDF]
, 2018 Aortic valve disease occurs due to calcification deposits on the area of leaflets within the human heart. It is progressive over time where it can affect the mechanism of the heart valve.
Mus’ab, Sahrim +2 more
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Strong asymmetric digraphs with prescribed interior and annulus [PDF]
, 2001 summary:The directed distance $d(u,v)$ from $u$ to $v$ in a strong digraph $D$ is the length of a shortest $u-v$ path in $D$. The eccentricity $e(v)$ of a vertex $v$ in $D$ is the directed distance from $v$ to a vertex furthest from $v$ in $D$.
Winters, Steven J.
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Melnikov functions for period annulus, nondegenerate centers, heteroclinic and homoclinic cycles [PDF]
Pacific Journal of Mathematics, 2004 This paper is devoted to the problem of the existence of periodic solutions of an analytical autonomous system in the plane, depending on a small parameter. It is assumed that, when the parameter is set to zero, the equation is Hamiltonian and has either a nondegenerate center (i.e., a center with purely imaginary eigenvalues) or a heteroclinic cycle ...
Li, Weigu, Llibre, Jaume, Zhang, Xiang
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Heat transfer characteristics of a short helical plate in a horizontal circular tube
, 2022 Enhancement techniques based on artificial roughness are used in numerous applications of heat exchangers. Heat exchange devices are essential components in complex engineering systems, such as industrial energy generation and energy conversion.
이권수 +3 more
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Geodesics onS 2 and periodic points of annulus homeomorphisms
Inventiones Mathematicae, 1992 It is the main result of this paper that an area preserving homeomorphism of the open or closed annulus which has at least one periodic point has infinitely many interior periodic points. It was shown by Birkhoff that closed geodesics on the 2-sphere with a metric of positive Gaussian curvature can be described as periodic points of an area preserving ...
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Pediatric Blood &Cancer, EarlyView.ABSTRACT Rates of cancer among adolescents and young adults (AYA), age 15–39 years, are increasing. Consequently, radiation oncologists are treating more AYAs who have diagnoses spanning both pediatric and adult practices. Compared to pediatric and older adult patients, AYAs face a unique set of challenges.
Hesham Elhalawani +7 more
wiley +1 more source
Breeding and predictability in the baroclinic rotating annulus using a perfect model [PDF]
Nonlinear Processes in Geophysics, 2008 We present results from a computational study of predictability in fully-developed baroclinically unstable laboratory flows. This behaviour is studied in the Met Office/Oxford Rotating Annulus Laboratory Simulation – a model of the classic rotating ...
R. M. B. Young, P. L. Read
doaj
Predicting clinical outcome by indexed mitral valve tenting in functional mitral valve regurgitation
Open Heart, 2021 Objectives Mitral valve (MV) tenting parameters are indicators of left ventricular remodelling severity and may predict outcome in functional mitral regurgitation (FMR).
Christoph R Sinning +8 more
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