Endocardial and epicardial borders were manually drawn and automatically tracked through the cardiac cycle. Results As shown in the Table, circumferential strain (Ecc) was the most reproducible, followed by longitudinal strain (ELL) and radial strain (Err). FT-CMR analysis time was 3卤1 mins. ...
'Cardiac cycle time' was varied by presenting stimuli at either the R wave of the electrocardiogram or 350 msec afterward. The speed and accuracy of choice RT performance were systematically manipulated by rewarding subjects for responding as close as possible to five different RT targets (150, ...
cardiac potential during the excitation and the plateau phases (in the regular cycle) as well as after a reentrant excitation (in the irregular cycle).do... P Deuflhard,B Erdmann,R Roitzsch,... - 《Computing & Visualization in Science》 被引量: 69发表: 2009年 The potential role of Ca...
PURPOSE: To provide a managing apparatus for cardiac rhythm using cardiac active time as control parameter by generating control signals relative to the total active time of cardiac cycle defined by the interval between the ends of congestive stages and transmitting them to a variable-speed pulse ge...
aArterial blood pressure is constantly fluctuarting during the course of the cardiac cycle. 动脉血压力在心动周期期间经常fluctuarting。[translate] afor women sex power for women sex power[translate] aYour time is limited. So don’t waste it living someone else’s life. 您的时间是有限的。 如...
Developmental tempo as a function of temperature Temperature is a ubiquitous environmental factor that has a direct influence on developmental rates, affecting various aspects of an organism’s life cycle from reproduction to ecological distribution45,46,47. Understanding the temperature dependence of embry...
these 'protected' rats had ceased ACE inhibitor treatment 2 weeks before the initiation of NOS inhibition.10,11 This suggested that a short-term ACE inhibitor treatment may change the cardiac phenotype and the eventual response to tissue injury—even after the activity of the renin angiotensin syst...
The interpretation of the 'cardiac cycle time effect', also named 'time-dependent primary bradycardia' by the Laceys, who first observed it, has been controversial in psychophysiology. Unconfounded evidence for the dependence of a vagal effect of psychological stimuli on time of stimulation within ...
Finally, a strict temporal constraint the system is subject to is reformulated in terms of inequalities that the (min, +) system should satisfy, and a control law is designed so that the controlled system satisfies the constraint. 展开 关键词: dioid algebra Petri net sizing cycle time control...
Cardiac-cycle-time effects are attributed to variations in baroreceptor (BR) activity and have been shown to impinge on subcortical as well as cortical processes. However, cognitive and sensorimotor processes mediating voluntary responses seem to be diff