Results 11 to 20 of about 144,316 (169)

Heartbeat design for energy-aware IoT:are your sensors alive? [PDF]

open access: yes, 2019
A number of algorithms now exist for using model-based prediction at the sensor node of a wireless sensor network (WSN) to enable a dramatic reduction in transmission rates, and thus save energy at the sensor node.
Brusey, James   +3 more
core   +1 more source

The paradigm shift: Heartbeat initiation without “the pacemaker cell”

open access: yesFrontiers in Physiology, 2022
The current dogma about the heartbeat origin is based on “the pacemaker cell,” a specialized cell residing in the sinoatrial node (SAN) that exhibits spontaneous diastolic depolarization triggering rhythmic action potentials (APs). Recent high-resolution
Victor A. Maltsev, Michael D. Stern
doaj   +1 more source

Implementation of the pulse rhythmic rate for the efficient diagnosing of the heartbeat

open access: yesHealthcare Technology Letters, 2019
The mortality rate has risen due to the increase in number of cardiac patients in recent times due to the lack of unawareness of the symptoms. This work mainly aims to detect the anomalies of the rhythmic conditions of the pulse derived from the ...
Visvam Devadoss Ambeth Kumar   +6 more
doaj   +1 more source

Non-Contact Heartbeat Detection by Heartbeat Signal Reconstruction Based on Spectrogram Analysis With Convolutional LSTM

open access: yesIEEE Access, 2020
Heartbeat detection is one of key techniques to monitor our health condition in daily life, and demands for this technique have increased year and year.
Kohei Yamamoto, Tomoaki Ohtsuki
doaj   +1 more source

Interoception and Premonitory Urges in Children and Adolescents With Tic Disorders

open access: yesClinical Psychology in Europe, 2023
[Background] Compared to healthy controls (HCs), adult Tic Disorder (TD) patients exhibit a lower interoceptive accuracy (IAcc) in heartbeat perception.
Christina Schütteler   +3 more
doaj   +1 more source

A method for improving recognition of lying postures using a measured signal intensity of respiration and heartbeat

open access: yesNihon Kikai Gakkai ronbunshu, 2018
We describe a method for improving recognition of lying postures using a measured signal intensity of respiration and heartbeat. We have proposed a measurement method of lying posture, respiration, and heartbeat using a Smart Rubber sensor, a rubber ...
Kazuya MATSUO   +2 more
doaj   +1 more source

Regular periods of abdominal contractions recorded from larvae of the bumblebee, Bombus terrestris (Hymenoptera: Apidae)

open access: yesEuropean 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

The Pseudosynchronization of Binary Stars Undergoing Strong Tidal Interactions [PDF]

open access: yes, 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

A novel conceptual model of heart rate autonomic modulation based on a small-world modular structure of the sinoatrial node

open access: yesFrontiers 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

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