Results 111 to 120 of about 1,748,185 (181)

Innovative Dose–Response Assessment of the Metaboreflex With Indirect Control of Intramuscular Metabolic Perturbation in Humans

Acta Physiologica, Volume 242, Issue 10, October 2026.
ABSTRACT Aim We aimed to evaluate an innovative dose–response approach to assess the metaboreflex with control of intramuscular metabolic perturbation (concept of metaboreflex gain). We also investigated potential sex differences in the metaboreflex using this new approach.
Nabil Kouzkouz, Joris Mallard, Elyse Hucteau, Roland Schott, Xavier Pivot, Guillaume P. Ducrocq, Thomas J. Hureau   +6 more
wiley   +1 more source

The assessment of microcirculation in oral mucosa by means of imaging photoplethysmography

, 2019
Manipulācijas ar smaganām ir kļuvušas par standarta procedūrām zobārstniecībā rosinot nepieciešamību pēc smaganu funkcionālām izvērtēšanas metodēm. It īpaši tādēļ, ka smaganu klīniskā aina nevienmēr atspoguļo to funkcionālo stāvokli un morfoloģiskās ...
Muckle, Robert Andrianirina
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The Electrocardiogram‐Based Phase Adjustment Task (PAT‐ECG): An Open‐Access Laboratory Test of Cardiac Interoceptive Accuracy

Psychophysiology, Volume 63, Issue 10, October 2026.
ABSTRACT Interoceptive accuracy plays a central role in theories of emotion, and atypical interoceptive accuracy is increasingly recognized as a feature in the pathophysiology of multiple clinical and subclinical conditions. However, existing methods for assessing interoceptive accuracy have limitations that may constrain research progress.
James Hodgetts, Germano Gallicchio, Shaun Mckiernan, Christopher Ring, Jennifer Murphy, Andrew Cooke   +5 more
wiley   +1 more source

High angular resolution diffusion imaging (HARDI) of porcine menisci: a comparison of diffusion tensor imaging and generalized q-sampling imaging

Background: Diffusion magnetic resonance imaging (MRI) allows for the quantification of water diffusion properties in soft tissues. The goal of this study was to characterize the 3D collagen fiber network in the porcine meniscus using high angular ...
Zhao, Qi, Holt, Abigail, Spritzer, Charles E., McNulty, Amy L., Wang, Nian, DeFrate, Louis E.   +5 more
core   +1 more source

Visualizing Membranes : 3D Electron Microscopic Imaging of Cellular Structures [PDF]

, 2009
Cells are organized in a highly complex manner. And while there are many different types of cells - each organized in a different manner according to their function - they do share certain commonalities.
Sub Biomolecular Imaging, Biomolecular Imaging, Lebbink, M.N.   +2 more
core   +1 more source

Contactless assessment of heart rate in neonates within a clinical environment using imaging photoplethysmography

Frontiers in Pediatrics
IntroductionIn neonatology, the accurate determination of vital parameters plays a pivotal role in monitoring critically ill newborns and premature infants, as well as aiding in disease diagnosis.
Libor Svoboda, Jan Sperrhake, Maria Nisser, Luca Taphorn, Hans Proquitté   +4 more
doaj   +1 more source

Splenic contraction associated with sudden, transient hypotension and sympathoexcitation in humans

Experimental Physiology, Volume 111, Issue 10, Page 4368-4381, 1 October 2026.
Abstract The spleen is traditionally recognised for its roles in immunity and blood filtration, and it is known to contract and release stored erythrocytes in hypoxic conditions. Recent findings suggest that the spleen may also contribute to cardiovascular regulation.
Angelica Lodin‐Sundström, Gabriel Axelsson, Lisa Ljungberg, Mats H. Linér, Bodil Sjögreen, Johan P. A. Andersson   +5 more
wiley   +1 more source

Revealing of imaging photoplethysmography changes in cerebral blood supply caused by temporary arterial occlusion

Journal of Innovative Optical Health Sciences
During temporary arterial occlusion (TAO), which is often used in neurosurgery, particularly when clipping aneurysms, it is critically important to intraoperatively assess changes in blood supply to the brain.
Alexey Y. Sokolov, Valeriy V. Zaytsev, Anton V. Shcherbinin, Alexei A. Kamshilin   +3 more
doaj   +1 more source

Development of a Dynamic Fluid Phantom - Setup and Validation for an Optical Sensor

Current Directions in Biomedical Engineering
We 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, Wiedenhoff Henri, Fleischhauer Vincent, Woyczyk Alexander, Zaunseder Sebastian   +4 more
doaj   +1 more source

Measuring Pulse Rate Variability During Motion Artifact with a Non-Contact, Multi-Imager Photoplethysmography System [PDF]

, 2015
Non-contact imaging photoplethysmography is an exciting new field based on the principles of traditional photoplethysmography where viable signals can now be acquired without the use of contact equipment.
Kiehl, Zachary Adam
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