Results 41 to 50 of about 110,886 (255)

Heart Rate Variability: A possible machine learning biomarker for mechanical circulatory device complications and heart recovery [PDF]

open access: yes, 2020
Cardiovascular disease continues to be the number one cause of death in the United States, with heart failure patients expected to increase to \u3e8 million by 2030.
Aras, Shravan   +2 more
core   +1 more source

Pacinian Corpuscle‐Inspired Strain Conversion Enables Ultrasensitive, Linear, and Broad‐Range Piezoelectric Sensing for Cardiovascular Health Monitoring

open access: yesAdvanced Science, EarlyView.
A bioinspired piezoelectric sensor mimicking Pacinian corpuscles is developed to enable ultrasensitive and linear pressure sensing. A multilayer grooved architecture converts normal pressure into in‐plane strain, delivering high sensitivity, wide linear range, and efficient energy harvesting, enabling high‐fidelity wrist pulse monitoring and ...
Qi Yang   +8 more
wiley   +1 more source

Relationships between the entropies of EEG, HRV, immunocytogram and leukocytogram

open access: yesJournal of Education, Health and Sport, 2019
Background. In mathematics the entropy is a measure of uncertainty of a random function; in the theory of information entropy is a measure of uncertainty in a situation, any experience (test) that can have different consequences.
O Popadynets’   +3 more
doaj   +1 more source

Mass‐Produced and High‐Performance Nanowell Biosensor Fabricated via Semiconductor Manufacturing for Rapid and Accurate COVID‐19 Diagnosis in the Clinical Field

open access: yesAdvanced Science, EarlyView.
A semiconductor‐fabricated nanowell biosensor enables rapid, scalable, and highly reproducible detection of SARS‐CoV‐2 antigens from nasal swabs within ∼10 minutes. Clinical validation in 249 retrospective and 243 prospective patient samples demonstrates high sensitivity and specificity, minimal cross‐reactivity, and robust batch‐to‐batch ...
Yoo Min Park   +11 more
wiley   +1 more source

HRV (Heart Rate Variability) as a non-invasive measurement method for performance diagnostics and training control

open access: yesCurrent Directions in Biomedical Engineering, 2019
The aim of this study was to determine whether non-invasive heart rate variability (HRV) recordings can be used to monitor training exercises and to estimate athletic performance.
Scherer Matthias   +2 more
doaj   +1 more source

Autonomic regulation in response to stress : the influence of anticipatory emotion regulation strategies and trait rumination [PDF]

open access: yes, 2018
According to the neurocognitive framework for regulation expectation, adaptively regulating emotions in anticipation of a stressful event should help individuals deal with the stressor itself.
De Raedt, Rudi   +3 more
core   +2 more sources

Discovering Interpretable Semantics from Radio Signals for Contactless Cardiac Monitoring

open access: yesAdvanced Science, EarlyView.
This study presents a semantic representation framework for clinically interpretable cardiac monitoring from contactless radio signals. It formulates radio semantic learning as an information‐bottleneck problem and approximates the objective via intra‐modal compression and cross‐modal alignment, structuring radio measurements into meaningful semantic ...
Jinbo Chen   +10 more
wiley   +1 more source

Heart Rate Variability Features as Predictors of Intermittent Theta‐Burst Stimulation Response in Posttraumatic Stress Disorder

open access: yesNeuromodulation: Technology at the Neural Interface, EarlyView., 2021
Abstract Background Posttraumatic stress disorder (PTSD) is associated with autonomic dysfunction as indicated by deficits in the sympathetic and parasympathetic nervous systems. These abnormalities are expressed as elevated heart rate and reduced heart rate variability (HRV), respectively.
Camila Cosmo   +4 more
wiley   +1 more source

Neuroendocrine-immune complex as the mirror of the state of exchange of nitrogenous metabolites at rats

open access: yesJournal of Education, Health and Sport, 2021
Background. Earlier we found that even in intact rats, certain parameters of nitrogenous metabolism fluctuate in a fairly wide range, which further expands in cases of prolonged water loads.
Igor Popovych   +4 more
doaj   +1 more source

A smart headband for multimodal physiological monitoring in human exercises

open access: yesAdvanced Science, EarlyView.
A novel smart headband incorporating a thermal‐sensation‐based electronic skin is presented for continuous and accurate multimodal physiological monitoring, including pulse waveforms, total metabolic energy expenditure, heart rate, and forehead temperature, across both static and dynamic daily activities.
Shiqiang Liu   +7 more
wiley   +1 more source

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