Results 51 to 60 of about 116,540 (259)
Frontiers in Medicine, 2020 Photoplethysmography (PPG) is increasingly used in digital health, exceptionally in smartwatches. The PPG signal contains valuable information about heart activity, and there is lots of research interest in its means and analysis for cardiovascular ...
Qunfeng Tang +11 more
doaj +1 more source
Supervised Release, Sex-Offender Treatment Programs, and Substantive Due Process [PDF]
, 2016 This Note argues that mandated PPG testing should be eliminated as a condition of federal supervised release. The test infringes on a constitutionally protected liberty interest against unwanted bodily intrusions and, as only the Second Circuit has held,
Bernstein, Max B.
core +1 more source
Conjecture on reflectionlessness of blood-vascular system as a wave-conducting medium
, 2017 Our research is related to the employment of photoplethysmography (PPG) and laser Doppler flowmetry (LDF) techniques (measuring the blood volume and flux, respectively) for the peripheral vascular system.
Goldobin, Denis S, Mizeva, Irina A
core +1 more source
Investigation of photoplethysmographic signals and blood oxygen saturation values on healthy volunteers during cuff-induced hypoperfusion using a multimode PPG/SpO2 sensor [PDF]
, 2012 Photoplethysmography (PPG) is a technique widely used to monitor volumetric blood changes induced by cardiac pulsations. Pulse oximetry uses the technique of PPG to estimate arterial oxygen saturation values (SpO2).
CD Hanning +8 more
core +1 more source
Advanced Healthcare Materials, EarlyView.Myocardial infarction often leads to pathological remodelling and ventricular dilatation, key features of HFrEF. This study introduces a personalized, 3D‐printed cardiac restraint device (CARD) printed using rationally designed inks displaying the requested printability and mechanical properties.
Nicola Mansour +6 more
wiley +1 more source
A Non-Contact Photoplethysmography Technique for the Estimation of Heart Rate via Smartphone
Applied Sciences, 2019 This paper describes the development of an application for mobile devices under the iOS platform which has the objective of monitoring patients with alterations or affections from cardiac pathologies.
J. Rodolfo Maestre-Rendon +4 more
doaj +1 more source
Photoplethysmogram Analysis and Applications: An Integrative Review
Frontiers in Physiology, 2022 Beyond its use in a clinical environment, photoplethysmogram (PPG) is increasingly used for measuring the physiological state of an individual in daily life.
Junyung Park +3 more
doaj +1 more source
Advanced Materials, EarlyView.Harnessing oxygen inhibition as a materials design principle enables the universal fabrication of core–shell microgels with tunable radial crosslinking gradients. This conceptually simple yet highly versatile strategy generates fusible colloidal bioinks that combine structural hierarchy with adaptive porosity.
Selin Bulut +8 more
wiley +1 more source
Development of a Dynamic Fluid Phantom - Setup and Validation for an Optical Sensor
Current Directions in Biomedical EngineeringWe present a custom fluid phantom usable in the development of sensing technologies to assess the pulse wave. The phantom provides adjustable flow and pressure to an interchangeable target volume and integrates sensors to provide reference readings on ...
Hruschka David +4 more
doaj +1 more source
Dynamic Time Warping of Pulse Wave Curves
Current Directions in Biomedical Engineering, 2018 Being able to non-obtrusively and continuously monitor arterial blood pressure is of great interest, particularly in the context of wearable sensors. A common limitation is the need for dedicated hardware, which is either obtrusive or expensive.
Pielmuş Alexandru-Gabriel +6 more
doaj +1 more source