Results 281 to 290 of about 577,063 (338)

Cardiac cycle affects risky decision-making

Biological Psychology, 2023
This study investigates whether decision-making under uncertainty is influenced by the cardiac cycle. To test this hypothesis, we examined the influence of the cardiac cycle on an individual's decision-making process in a gambling experiment. Participants were asked to choose one option with a sure payout or uncertain option with varying degrees of ...
Kenta, Kimura, Noriaki, Kanayama, Kentaro, Katahira   +2 more
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The Cardiac Sarcomere and Cell Cycle

Current Cardiology Reports, 2022
The lack of adult human cardiomyocyte proliferative capacity impairs cardiac regeneration such as after myocardial injury. The sarcomere, a specialized actin cytoskeletal structure that is essential for twitch contraction in cardiomyocytes, has been considered a critical factor limiting adult human cardiomyocyte proliferation through incompletely ...
Anthony M. Pettinato, Feria A. Ladha, J. Travis Hinson   +2 more
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The cardiac cycle

Anaesthesia & Intensive Care Medicine, 2012
Abstract The heart consists of four chambers that are connected in such a way that contraction of them causes the heart to act as a pump, the right half of the heart passing blood from the venae cavae to the pulmonary circulation for oxygenation and the left half of the heart pumping oxygenated blood from the pulmonary veins into the aorta and ...
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The phases of the cardiac cycle

American Heart Journal, 1972
Abstract The events of the cardiac cycle are re-evaluated on the basis of newer ideas of inertial states, compliance, and similar hemodynamic principles by the use of more precise, modern recording equipment. While these events generally agree with classic schemes, certain discrepancies which tend to cause inaccurate measurement are presented.
A A, Luisada, D M, MacCanon
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Square-Wave 250 Cycle Cardiac Defibrillator

Archives of Surgery, 1965
CARDIAC DEFIBRILLATION has become an established method of resuscitation in ventricular fibrillation occurring in the operating room, or after coronary occlusion. Defibrillation in the past has been accomplished by the use of a defibrillator which provided a 60 cycle alternating current of about 1½ to 3 amp, with voltages varying from 150 to 250 volts,
S, ATTAR, R A, COWLEY, E, BLAIR, M, TISCHLER   +3 more
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Sheep cardiac Purkinje fibers: Configurational changes during the cardiac cycle

Cell and Tissue Research, 1983
Previous attempts to study the cytoarchitecture of cardiac Purkinje fibers with the scanning electron microscope (SEM) have been limited by the surrounding dense connective tissue. In this study the connective tissue was removed by treatment with 8N HCl, after adult sheep hearts were fixed in diastole or systole and tissue taken for SEM and ...
E, Canale, G R, Campbell, Y, Uehara, T, Fujiwara, J J, Smolich   +4 more
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The cardiac cycle—a model

Journal of Biological Education, 1985
This easy-to-construct model makes use of the redundant kymograph and illustrates dramatically the cardiac ...
L. A. Morgan, N. Ross
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The Cardiac Cycle

Abstract The cardiac cycle is a series of physiological events in which blood moves through the chambers of the heart in alternating phases of systole and diastole. Movement of blood throughout the cardiac chambers is dependent on pressure changes and gradients, generated by alternating contraction and relaxation of myocardium.
Robert Pellicer, Alaa Abd-Elsayed
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Indoor Cycling for the Cardiac Patient

JAMA: The Journal of the American Medical Association, 1971
To the Editor.— When the patient with coronary disease is "back on his feet" and regular daily exercise is considered essential to keeping him there, I prescribe indoor cycling, and the prescription is as specific as any written for his medication. There are many reasons for preferring indoor cycling to walking, swimming, jogging, and golf.
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