Results 51 to 60 of about 2,693,107 (116)

Global properties of Higgs bundle moduli spaces [PDF]

open access: yesarXiv, 2023
The moduli spaces for Higgs bundles associated to real Lie groups and a closed Riemann surface have multiple connected components. This survey provides a compendium of results concerning the counting of these components in cases where the Lie group is a real forms of a complex simple Lie group.
arxiv  

Left bundle branch pacing: An evolving site for physiological pacing

open access: yesJournal of Arrhythmia, 2021
For patients with symptomatic bradyarrhythmia, cardiac pacing is the only appropriate treatment option. Electrical and mechanical dyssynchrony caused by traditional right ventricular apical pacing leads to left ventricular dysfunction and atrial ...
Eka P. B. Mulia   +3 more
doaj   +1 more source

Bundle of His recordings in congenital heart disease.

open access: yesBritish heart journal, 1973
Bundle of His recordings were obtained from 34 children with congenital heart disease. Except for patients with endocardial cushion defect or L-transposition of the great arteries recordings were obtained by usual methods.
G. Wolff, M. Freed, R. Ellison
semanticscholar   +1 more source

Left Bundle Branch Pacing

open access: yesJACC: Case Reports, 2020
His bundle pacing was developed while seeking a physiological alternative to biventricular cardiac resynchronization therapy. However, His bundle pacing may not be adequate in all patients.
Margarida Pujol-López, MD   +5 more
doaj  

A topological definition of the Maslov bundle [PDF]

open access: yesCubo, a Mathematical Journal 8 (2006) N. 1, p. 1--15, 2006
We give a definition of the Maslov fibre bundle for a lagrangian submanifold of the cotangent bundle of a smooth manofold. This definition generelizes the definition given, in homotopic terms, by Arnol'd for lagrangian submanifolds of the cotangent bundle of the euclidean space and coincides with the one of H\"{o}rmander in his works about Fourier ...
arxiv  

The Atrioventricular Conduction Axis in Man and Mouse

open access: yesJournal of Cardiovascular Development and Disease
Those using the mouse for the purposes of electrophysiological research presume that the morphology of the conduction axis is comparable with the human arrangement. As yet, however, to the best of our knowledge, no direct comparison has been made between
Damián Sánchez-Quintana   +4 more
doaj   +1 more source

The phenomenon of concealed conduction in a case of His bundle pacing (HBP)

open access: yesJournal of International Medical Research, 2020
The phenomenon of concealed conduction in His bundle pacing (HBP) has rarely been reported. We report here a patient who had 2: 1 atrioventricular block and complete left bundle branch block was used because of HBP. The patient developed continuous right
Shuai Sun, Hong Zhang, Xing-Peng Liu
doaj   +1 more source

His Electrogram Alternans Reveal Dual-Wavefront Inputs Into and Longitudinal Dissociation Within the Bundle of His

open access: yesCirculation, 2001
Background—His electrogram (HE) amplitude and morphology changes were observed in our previous studies during transition from “fast” to “slow” atrioventricular nodal (AVN) conduction.
Youhua Zhang   +5 more
semanticscholar   +1 more source

Extension de fibres vectoriels et profondeur [PDF]

open access: yesarXiv, 2011
In his book SGA2, A. Grothendieck proved Lefschetz theorems, in particular for the Picard group. To some extent he was able to deal with vector bundles instead of line bundles. Here we use his methods in order to study vector bundles on quasi-projective varieties instead of projective ones (as Grothendieck did).
arxiv  

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