Results 51 to 60 of about 499,118 (196)

Smooth and non-smooth traveling wave solutions of some generalized Camassa-Holm equations

, 2013
In this paper we employ two recent analytical approaches to investigate the possible classes of traveling wave solutions of some members of a recently-derived integrable family of generalized Camassa-Holm (GCH) equations.
Choudhury, S. Roy, Gambino, G., Rehman, T.   +2 more
core   +1 more source

Abnormal wave reflections and left ventricular hypertrophy late after coarctation of the aorta repair [PDF]

, 2017
Patients with repaired coarctation of the aorta are thought to have increased afterload due to abnormalities in vessel structure and function. We have developed a novel cardiovascular magnetic resonance protocol that allows assessment of central ...
Khushnood, Abbas, Muthurangu, Vivek, Pandya, Bejal, Quail, Michael A, Segers, Patrick, Short, Rebekah, Steeden, Jennifer A, Taylor, Andrew M   +7 more
core   +2 more sources

Higher Total Physical Activity is Associated with Lower Arterial Stiffness in Swedish, Young Adults: The Cross-Sectional Lifestyle, Biomarkers, and Atherosclerosis Study

Vascular Health and Risk Management, 2021
Ulrika Fernberg,1 Maria Fernström,2 Anita Hurtig-Wennlöf1,3 1Cardiovascular Research Center, Faculty of Medicine and Health, Örebro University, Örebro, 70182, Sweden; 2Department of Physical Activity and Health, The Swedish School of ...
Fernberg U, Fernström M, Hurtig-Wennlöf A   +2 more
doaj  

Second harmonic generation and pulse shaping in positively and negatively spatially dispersive nanowaveguides: comparative analysis [PDF]

, 2015
Comparative analysis of second harmonic generation in ordinary and backward-wave settings is presented. Extraordinary properties of frequency doubling nonlinear optical reflectivity and pulse shaping through phase matching of ordinary and backward ...
Myslivets, Sergey A., Popov, Alexander K.   +1 more
core   +2 more sources

A learning-based image processing approach for pulse wave velocity estimation using spectrogram from peripheral pulse wave signals: An in silico study

Frontiers in Physiology, 2023
Carotid-to-femoral pulse wave velocity (cf-PWV) is considered a critical index to evaluate arterial stiffness. For this reason, estimating Carotid-to-femoral pulse wave velocity (cf-PWV) is essential for diagnosing and analyzing different cardiovascular ...
Juan M. Vargas, Mohamed A. Bahloul, Taous-Meriem Laleg-Kirati, Taous-Meriem Laleg-Kirati   +3 more
doaj   +1 more source

Pulse contour analysis: a valid assessment of central arterial stiffness in children? [PDF]

, 2018
In adults the contour analysis of peripheral pressure waves in the upper limb reflects central aortic stiffness. Here, we wanted to demonstrate the appropriateness of pulse contour analysis to assess large artery stiffness in children.
Bergmann, Ivo, Eisenberger, Ute, Frey, Felix, Mohaupt, Markus, Simonetti, Giacomo   +4 more
core  

Multi-mode coupling wave theory for helically corrugated waveguide [PDF]

, 2012
Helically corrugated waveguide has been used in various applications such as gyro-backward wave oscillators, gyro-traveling wave amplifier and microwave pulse compressor.
Cross, Adrian W., Donaldson, Craig R., He, Wenlong, Phelps, Alan D. R., Robertson, Craig W., Ronald, Kevin, Whyte, Colin G., Young, Alan R., Zhang, Liang   +8 more
core   +1 more source

Brachial-ankle pulse wave velocity and symptomatic cerebral infarction in patients with type 2 diabetes: a cross-sectional study

Cardiovascular Diabetology, 2003
Background Recently a new automatic device that measures brachial-ankle pulse wave velocity using an oscillometric method has been developed. However, the practical significance of brachial-ankle pulse wave velocity measurement remains uncertain.
Muramatsu Chie, Mitsuhashi Naomi, Kubo Sayaka, Onuma Tomio, Ogawa Osamu, Kawamori Ryuzo   +5 more
doaj   +1 more source

Central Hemodynamics in Relation to Circulating Desphospho‐Uncarboxylated Matrix Gla Protein: A Population Study

Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2019
Background Stiffening and calcification of the large arteries are forerunners of cardiovascular complications. MGP (Matrix Gla protein), which requires vitamin K–dependent activation, is a potent locally acting inhibitor of arterial calcification.
Fang‐Fei Wei, Lutgarde Thijs, Nicholas Cauwenberghs, Wen‐Yi Yang, Zhen‐Yu Zhang, Cai‐Guo Yu, Tatiana Kuznetsova, Tim S. Nawrot, Harry A. J. Struijker‐Boudier, Peter Verhamme, Cees Vermeer, Jan A. Staessen   +11 more
doaj   +1 more source

Radial Pulse Wave Analysis in Young Male Elite Athletes

Artery Research, 2020
Background: Indicators obtained from the analysis of the radial pulse wave allow an indirect evaluation of the interaction between cardiac ejection and arterial walls.
Fernando Clara, José Alfie, Gustavo Blanco, Cecilia Resina, Meschino Gustavo, Mariana Fita   +5 more
doaj   +1 more source