Results 121 to 130 of about 1,364,858 (220)

An experimentally informed computational model of neurovestibular adaptation to altered gravity

Experimental Physiology, Volume 111, Issue 9, Page 4195-4208, 1 September 2026.
Abstract Transitions to altered gravity environments result in acute sensorimotor impairment for astronauts, leading to serious mission and safety risks in the crucial first moments in a new setting. Our understanding of the time course and severity of impairment in the early stages of adaptation remains limited and confounded by unmonitored head ...
Victoria G. Kravets, Torin K. Clark
wiley   +1 more source

Blood flow restriction: The acute effects of body tilting and reduced gravity analogues on limb occlusion pressure

Experimental Physiology, Volume 111, Issue 9, Page 4103-4114, 1 September 2026.
Abstract Blood flow restriction (BFR) has been identified as a potential countermeasure to mitigate physiological deconditioning during spaceflight. Guidelines recommend that tourniquet pressure be prescribed relative to limb occlusion pressure (LOP); however, it is unclear whether body tilting or reduced gravity analogues influence LOP.
Patrick Swain, Nick Caplan, Luke Hughes
wiley   +1 more source

Cerebrovascular pulsatility following long duration spaceflight is associated with changes in pulse pressure and carotid artery stiffness

Experimental Physiology, Volume 111, Issue 9, Page 4235-4247, 1 September 2026.
Abstract Central artery stiffening increases the haemodynamic pulsations transmitted downstream towards target organs, including the brain. While recent evidence suggests that long duration spaceflight is associated with reduced common carotid artery (CCA) distensibility, cerebrovascular pulsatility has not been extensively characterized in astronauts.
Roxanne Fournier, Danielle K. Greaves, J. Kevin Shoemaker, Philippe Arbeille, Richard L. Hughson, Andrew D. Robertson   +5 more
wiley   +1 more source

Existence of solutions to non-local problems for parabolic-hyperbolic equations with three lines of type changing

Electronic Journal of Differential Equations, 2013
In this work, we study a boundary problem with non-local conditions, by relating values of the unknown function with various characteristics. The parabolic-hyperbolic equation with three lines of type changing is equivalently reduced to a system of ...
Erkinjon T. Karimov, Akmal I. Sotvoldiyev   +1 more
doaj  

The solutions of a hyperbolic–parabolic mixed type equation on half-space domain

Journal of Differential Equations, 2015
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

Interacting rarefaction waves for the unsteady transonic small disturbance equation

Electronic Journal of Differential Equations, 2016
We consider a Riemann problem for the unsteady transonic small disturbance equation that results in two rarefaction waves. We write the problem in self-similar and parabolic coordinates and we obtain a system that changes type from hyperbolic to ...
Ilija Jegdic, Katarina Jegdic
doaj  

A non local problem for a parabolic-hyperbolic equation [PDF]

, 2019
In the paper a non local problem for a model parabolic hyperbolic equation is researched. The third boundary condition and an integral condition are given in the parabolic part of the domain, and a shifting condition is given in the hyperbolic part of ...
Rafiqov, A., Sotvoldiev, А.
core  

Backward difference replacements of the space derivative in first order hyperbolic equations [PDF]

, 1983
Two families of two-time level difference schemes are developed for the numerical solution of first order hyperbolic partial differential equations with one space variable.
Khaliq, AQM, Twizell, EH
core  

Riemann Problem for a limiting system in elastodynamics

Electronic Journal of Differential Equations, 2014
This article concerns the resolution of the Riemann problem for a 2x2 system in nonconservative form exhibiting parabolic degeneracy. The system can be perceived as the limiting equation (depending on a parameter tending to 0) of a 2x2 strictly ...
Anupam Pal Choudhury
doaj  

Note on a Weighted Geometric Inequality in Hyperbolic Space. [PDF]

J Geom Anal
Xu B.
europepmc   +1 more source