Results 151 to 160 of about 103,955 (369)

The injectivity radius of hyperbolic surfaces and some Morse functions over moduli spaces

, 2015
This article is devoted to the variational study of two functions defined over some Teichmueller spaces of hyperbolic surfaces. One is the systole of geodesic loops based at some fixed point, and the other one is the systole of arcs.\par For each of them
Gendulphe, Matthieu
core   +1 more source

Optimal systolic inequalities on Finsler Mobius bands [PDF]

arXiv, 2015
We prove optimal systolic inequalities on Finsler Mobius bands relating the systole and the height of the Mobius band to its Holmes-Thompson volume. We also establish an optimal systolic in- equality for Finsler Klein bottles of revolution, which we conjecture to hold true for arbitrary Finsler metrics.
arxiv  

Systolic trees and systolic language recognition by tree automata

Theoretical Computer Science, 1983
AbstractRecently K. Culik II, J. Gruska, A. Salomaa and D. Wood have studied the language recognition capabilities of certain types of systolically operating networks of processors. Here their model for systolic VLSI trees is formalized in terms of standard tree automaton theory, and we show how some known facts about recognizable forests and tree ...
openaire   +2 more sources

Comparison of echocardiographic measurements and cardiac biomarkers in healthy dogs eating nontraditional or traditional diets

Journal of Veterinary Internal Medicine, Volume 37, Issue 1, Page 37-46, January/February 2023., 2023
Abstract Background There has been a recent association between nontraditional diets and development of diet‐associated dilated cardiomyopathy (DCM) in dogs. Hypothesis/Objectives To compare echocardiographic measurements and cardiac biomarkers between healthy dogs eating nontraditional vs traditional diets.
Eric J. Owens, Nicole L. LeBlanc, Lisa M. Freeman, Katherine F. Scollan   +3 more
wiley   +1 more source

Left ventricular long axis function in diastolic heart failure is reduced in both diastole and systole: time for a redefinition?

Heart, 2002
Objective: To test the hypothesis that, when measured in the long axis, left ventricular systolic function is abnormal in patients with diastolic heart failure. Design: A case–control study. Setting: University teaching hospital (tertiary referral centre)
G. Yip, M. Wang, Y. Zhang, J. Fung, P. Ho, J. Sanderson   +5 more
semanticscholar   +1 more source

Application Value of Myocardial Segmental Thickness Variability Measured by Echocardiography in Distinguishing Ischemic and Nonischemic Dilated Cardiomyopathy

Journal of Clinical Ultrasound, EarlyView.
Echocardiographic measurement of myocardial segmental thickness variability (STV) effectively differentiates between ischemic and nonischemic dilated cardiomyopathy. STV, combined with regional wall motion abnormalities (RWMA), provides high diagnostic accuracy, offering a noninvasive alternative to coronary angiography for guiding treatment strategies.
Can Xu, Dongjin Wang
wiley   +1 more source

Pharmacokinetics of a single dose of Aficamten (CK‐274) on cardiac contractility in a A31P MYBPC3 hypertrophic cardiomyopathy cat model

Journal of Veterinary Pharmacology and Therapeutics, Volume 46, Issue 1, Page 52-61, January 2023., 2023
Abstract Hypertrophic cardiomyopathy (HCM) is the most prevalent cardiac disease in cats and lacks efficacious preclinical pharmacologic intervention, prompting investigation of novel therapies. Genetic mutations encoding sarcomeric proteins are implicated in the development of HCM and small molecule myosin inhibitors are an emerging class of ...
Ashley N. Sharpe, Maureen S. Oldach, Joanna L. Kaplan, Victor Rivas, Samantha L. Kovacs, Darren T. Hwee, Bradley P. Morgan, Fady I. Malik, Samantha P. Harris, Joshua A. Stern   +9 more
wiley   +1 more source

The heart, a secondary organ in the control of blood circulation

Experimental Physiology, EarlyView., 2023
Abstract Circulation of the blood is a fundamental physiological function traditionally ascribed to the pressure‐generating function of the heart. However, over the past century the ‘cardiocentric’ view has been challenged by August Krogh, Ernst Starling, Arthur Guyton and others, based on haemodynamic data obtained from isolated heart preparations and
Branko Furst, José González‐Alonso
wiley   +1 more source

3D Vortex‐Energetics in the Left Pulmonary Artery for Differentiating Pulmonary Arterial Hypertension and Pulmonary Venous Hypertension Groups Using 4D Flow MRI

Journal of Magnetic Resonance Imaging, EarlyView.
Background Pulmonary hypertension (PH) is a life‐threatening. Differentiation pulmonary arterial hypertension (PAH) from pulmonary venous hypertension (PVH) is important due to distinct treatment protocols. Invasive right heart catheterization (RHC) remains the reference standard but noninvasive alternatives are needed.
Mohammed S.M. Elbaz, Melika Shafeghat, Benjamin H. Freed, Roberto Sarnari, Zachary Zilber, Ryan Avery, Michael Markl, Bradley D. Allen, James Carr   +8 more
wiley   +1 more source

Accuracy and reproducibility of left ventricular outflow tract diameter measurement using transthoracic when compared with transesophageal echocardiography in systole and diastole.

European journal of echocardiography : the journal of the Working Group on Echocardiography of the European Society of Cardiology, 2009
AIMS Accurate measurement of left ventricular outflow tract diameter (LVOTd) is essential for reliable estimation of aortic valve area (AVA) using the continuity equation. Transesophageal echocardiography (TEE) can accurately delineate the LVOT.
A. Shiran, S. Adawi, M. Ganaeem, Ehab Asmer   +3 more
semanticscholar   +1 more source