A systolic inequality with remainder in the real projective plane [PDF]
Open Mathematics, 2020 The first paper in systolic geometry was published by Loewner’s student P. M. Pu over half a century ago. Pu proved an inequality relating the systole and the area of an arbitrary metric in the real projective plane.
Katz Mikhail G., Nowik Tahl
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Fiber Orientation in the Canine Left Ventricle during Diastole and Systole
Circulation Research, 1969 Fiber orientation across the left ventricular myocardial wall has been studied. Specimens were obtained from 18 dog hearts rapidly fixed in situ in systole, in diastole, and in dilated diastole.
Daniel D. Streeter +4 more
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The effect of cardiac phase on distractor suppression and motor inhibition in a stop-signal task [PDF]
Scientific ReportsPast work has shown that stimuli timed to the cardiac systole, the time at which heartbeat feedback is transmitted to the brain, can be more effectively selected from conflicting information.
Amanda C. Marshall +4 more
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Personalized auricular vagus nerve stimulation: beat-to-beat deceleration dominates in systole-gated stimulation during inspiration - a pilot study [PDF]
Frontiers in PhysiologyNeuromodulation comes into focus as a non-pharmacological therapy with the vagus nerve as modulation target. The auricular vagus nerve stimulation (aVNS) has emerged to treat chronic diseases while re-establishing the sympathovagal balance and activating
Johannes Tischer +2 more
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Bounding volume by systoles of 3-manifolds [PDF]
, 2005 We prove a new systolic volume lower bound for non-orientable n-manifolds, involving the stable 1-systole and the codimension 1 systole with coefficients in Z_2. As an application, we prove that Lusternik-Schnirelmann category and systolic category agree for non-orientable closed manifolds of dimension 3, extending our earlier result in the orientable ...
Mikhail G. Katz, Yuli B. Rudyak
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Brazilian Journal of Cardiovascular Surgery, 2016 Objective To complement the ISO 5840 standards concerning the duration of left ventricular systole and diastole as a function of changes in heart rates according to in vivo studies from the physiologic literature review.
Ovandir Bazan, Jayme Pinto Ortiz
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The homology systole of hyperbolic Riemann surfaces [PDF]
, 2011 The main goal of this note is to show that the study of closed hyperbolic surfaces with maximum length systole is in fact the study of surfaces with maximum length homological systole.
Parlier, Hugo
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Aortic root dimension changes during systole and diastole: evaluation with ECG-gated multidetector row computed tomography [PDF]
The International Journal of Cardiovascular Imaging, 2011 Cardiac pulsatility and aortic compliance may result in aortic area and diameter changes throughout the cardiac cycle in the entire aorta. Until this moment these dynamic changes could never be established in the aortic root (aortic annulus, sinuses of ...
Linda M. de Heer +5 more
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Diffusion MRI tractography of the human heart In Vivo at end-diastole and end-systole [PDF]
Journal of Cardiovascular Magnetic Resonance, 2012 Summary Diffusion Tensor MRI (DTI) of the human heart in vivo has to date been performed in 2D and at a single phase of the cardiac cycle. Here we perform 3D tractography of the human heart in vivo at both end diastole and end systole. We show that fiber
Choukri Mekkaoui +5 more
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OBSERVATIONS ON THE EFFECT OF VARIOUS FACTORS ON THE DURATION OF THE ELECTRICAL SYSTOLE OF THE HEART AS INDICATED BY THE LENGTH OF THE Q-T INTERVAL OF THE ELECTROCARDIOGRAM [PDF]
Journal of Clinical Investigation, 1929 Paul D. White, SEELEY G. MUDD
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