Results 61 to 70 of about 2,657 (184)
Acta Polytechnica, 2007 Astronauts complain about fluid shifts from their lower extremities to their head caused by weightlessness during their flight into space. For a study of this phenomenon, RWTH Aachen University and Charité University Berlin participated in a joint ...
N. Blanik +3 more
doaj
Orthostatic intolerance and motion sickness after parabolic flight [PDF]
Journal of Applied Physiology, 2001 Because it is not clear that the induction of orthostatic intolerance in returning astronauts always requires prolonged exposure to microgravity, we investigated orthostatic tolerance and autonomic cardiovascular function in 16 healthy subjects before and after the brief micro- and hypergravity of parabolic flight.
T T, Schlegel +9 more
openaire +2 more sources
Political Fictionality: Vladislav Surkov and the Rise of the Authorial State
The Russian Review, EarlyView.Abstract This article introduces the concept of political fictionality as a theoretical framework for analyzing the convergence of literary authorship and political power in Russia during the Putin era, using Vladislav Surkov—a longtime presidential advisor and ideologue as well as fiction writer under the pseudonym Natan Dubovitskii—as its principal ...
Ekaterina Vassilieva
wiley +1 more source
Life, 2014 The reduced-gravity environment in space is known to cause an upward shift in body fluids and thus require cardiovascular adaptations in astronauts. In this study, we recorded in rats the neuronal activity in the subthalamic cerebrovasodilator area (SVA),
Zeredo L Zeredo +2 more
doaj +1 more source
Angry Birds Revisited: Making Connections Between Mathematics and Physics Meaningful and Joyful
School Science and Mathematics, EarlyView.ABSTRACT Connecting mathematical reasoning with physical sensemaking remains challenging for many students, and interdisciplinary STEM instruction often struggles to integrate disciplines without one overshadowing the other. This paper presents a digital task sequence designed to support students in making meaningful and joyful connections between ...
Yosep Dwi Kristanto +4 more
wiley +1 more source
An eye on long‐duration spaceflight: Controversies, countermeasures and challenges
Experimental Physiology, EarlyView.Abstract Space flight‐associated neuroocular syndrome (SANS) is a consequence of long‐duration space flight and is detected in two‐thirds of astronauts. In‐flight, this can cause a change in the refraction of the eyes, requiring graded hypermetropic ‘superfocus adjustable’ glasses, optic nerve head oedema and choroidal folds.
Vincent Wing Sum Ng +1 more
wiley +1 more source
Experimental Physiology, EarlyView.Abstract Microgravity is associated with stature increases, back pain and post‐flight intervertebral disc (IVD) herniation. This study aims to determine whether 30 s seated 50% body weight (BW) axial loading is comparable to 15 min sitting upright in 1 g upon changes in stature, anterior lumbar IVD height (via ultrasound), passive vertebral stiffness ...
David Marcos‐Lorenzo +6 more
wiley +1 more source
An experimentally informed computational model of neurovestibular adaptation to altered gravity
Experimental Physiology, EarlyView.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
The Impact of Altered Gravity and Vibration on Endothelial Cells During a Parabolic Flight
Cellular Physiology and Biochemistry, 2013 Background: Endothelial cells (EC) cultured under altered gravity conditions show a cytoskeletal disorganization and differential gene expression (short-term effects), as well as apoptosis in adherently growing EC or formation of tubular 3D structures ...
Markus Wehland +8 more
doaj +1 more source
Experimental Physiology, EarlyView.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