Results 21 to 30 of about 145,692 (284)
European Journal of Entomology, 2006 Using an opto-cardiograph combined with an infrared gas analyzer regular bouts of abdominal contractions were recorded from last instar larva of Bombus terrestris. The rate of CO2 release was about 0.7 ml g-1 h-1.
Marika MÄND +7 more
doaj +1 more source
Vascular endothelial ageing, heartbeat after heartbeat [PDF]
Cardiovascular Research, 2009 The vascular endothelium starts to age at the first heartbeat. There is no longer a need to demonstrate that an increased resting heart rate--above 70 b.p.m.--is associated with the onset of cardiovascular events and reduces lifespan in humans. Each cardiac cycle imposes a mechanical constraint on the arteries, and we would like to propose that this ...
Eric, Thorin, Nathalie, Thorin-Trescases
openaire +2 more sources
Frontiers in Physiology, 2023 The present view on heartbeat initiation is that a primary pacemaker cell or a group of cells in the sinoatrial node (SAN) center paces the rest of the SAN and the atria. However, recent high-resolution imaging studies show a more complex paradigm of SAN
Alexander V. Maltsev +3 more
doaj +1 more source
European Journal of Cardiovascular Nursing, 2018 Geraldine, Lee, Barbro, Kjellström
+12 more sources
Electrically driven heartbeat effect of gallium-based liquid metal on a ratchet
Frontiers in Bioengineering and Biotechnology, 2023 The realization of the liquid metal heartbeat effect shows better controllability under non-periodic stimuli than spontaneous oscillation or periodic stimuli.
Shutong Wang +6 more
doaj +1 more source
The Pseudosynchronization of Binary Stars Undergoing Strong Tidal Interactions [PDF]
, 2017 Eccentric binaries known as heartbeat stars experience strong dynamical tides as the stars pass through periastron, providing a laboratory to study tidal interactions. We measure the rotation periods of 24 heartbeat systems, using the Kepler light curves
Fuller, Jim +5 more
core +3 more sources
Peak Detection Algorithm for Vital Sign Detection Using Doppler Radar Sensors
Sensors, 2019 An accurate method for detecting vital signs obtained from a Doppler radar sensor is proposed. A Doppler radar sensor can remotely obtain vital signs such as heartbeat and respiration rate, but the vital signs obtained by using the sensor do not show ...
Ju-Yeon Kim +3 more
doaj +1 more source
Spectrogram-Based Non-Contact RRI Estimation by Accurate Peak Detection Algorithm
IEEE Access, 2018 Demands for vital sign monitoring are increasing in the field of health care. In particular, the R-R Interval (RRI) estimation has been studied extensively, since the RRI variation is highly related with the stress of a subject.
Kohei Yamamoto +2 more
doaj +1 more source
Nihon Kikai Gakkai ronbunshu, 2014 Sleep monitoring provides useful information for keeping a good health condition and detecting diseases. The monitoring system should not interfere with natural sleep, and be an existence that is almost unnoticed by the person being measured, to be used ...
Toshiharu MUKAI +4 more
doaj +1 more source
Precision medicine and artificial intelligence : a pilot study on deep learning for hypoglycemic events detection based on ECG [PDF]
, 2020 Tracking the fluctuations in blood glucose levels is important for healthy subjects and crucial diabetic patients. Tight glucose monitoring reduces the risk of hypoglycemia, which can result in a series of complications, especially in diabetic patients ...
Pecchia, Leandro +3 more
core +1 more source