Long Duration Head-Down Tilt Bed Rest Studies: Safety Considerations Regarding Vision Health [PDF]
, 2012 Visual symptoms reported in astronauts returning from long duration missions in low Earth orbit, including hyperopic shift, choroidal folds, globe flattening and papilledema, are thought to be related to fluid shifts within the body due to microgravity ...
Cromwell, Ronita L. +5 more
core +2 more sources
Advanced Engineering Materials, EarlyView.This paper presents a novel approach to reducing oxide layers on metal powders using low‐temperature hydrogen dielectric barrier discharge plasmas at atmospheric pressure. Unlike conventional hydrogen‐plasma reductions, the powders do not contact the plasma directly.
Shukang Zhang +3 more
wiley +1 more source
The effect of bedrest on various parameters of physiological function. part xiv- effect of bedrest on plasma levels and urinary excretion of 17-hydroxycorticosteroids [PDF]
Bed rest effect on plasma levels and urinary excretion of ...
Cardus, D. +5 more
core +1 more source
Surface Tension Measurement of Ti‐6Al‐4V by Falling Droplet Method in Oxygen‐Free Atmosphere
Advanced Engineering Materials, EarlyView.In this article, the temperature‐dependent surface tension of free falling, oscillating Ti‐6Al‐4V droplets is investigated in both argon and monosilane doped, oxygen‐free atmosphere. Droplet temperature and oscillation are captured with one single high‐speed camera, and the surface tension is calculated with Rayleigh's formula.
Johannes May +9 more
wiley +1 more source
Exercise effects on bed rest-induced brain changes.
PLoS ONE, 2018 PurposeSpaceflight negatively affects sensorimotor behavior; exercise mitigates some of these effects. Head down tilt bed rest (HDBR) induces body unloading and fluid shifts, and is often used to investigate spaceflight effects. Here, we examined whether
Vincent Koppelmans +15 more
doaj +1 more source
The effect of bedrest on various parameters of physiological function. part xii- the effect of bedrest on bone mass and calcium balance [PDF]
Bed rest effect on various parameters of physiological functions - bone mass and calcium ...
Beasley, W. G. +5 more
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Creating Ti–Fe α/β Alloys by Diffusion‐Driven Solid‐State Processing
Advanced Engineering Materials, EarlyView.This study proposes making alloys containing fast diffusing elements that are difficult to produce by ingot metallurgy, by diffusion‐driven solid‐state HIP processing of elemental powders and low‐temperature homogenisation. Here, novel Fe‐Ti α–β alloys are formed having fine α–β lamellae, a small β prior grain size without significant intermetallics ...
Jiaqi Xu +10 more
wiley +1 more source
Hypoxia Worsens Affective Responses and Feeling of Fatigue During Prolonged Bed Rest
Frontiers in Psychology, 2018 Previous research, although limited, suggests that both hypoxia and bed rest influence psychological responses by exaggerating negative psychological responses and attenuating positive emotions.
Nektarios A. M. Stavrou +6 more
doaj +1 more source
Joint US/USSR study: Comparison of effects of horizontal and head-down bed rest [PDF]
An account is given of the results of the first joint U.S./U.S.S.R. bed rest study. The study was accomplished in two parts: A soviet part (May to June 1979) and an American part (July to August 1979).
Grigoriev, Anatoli I., Sandler, Harold
core +1 more source
Latent profile analysis of accelerometer-measured sleep, physical activity, and sedentary time and differences in health characteristics in adult women. [PDF]
, 2019 ObjectivesIndependently, physical activity (PA), sedentary behavior (SB), and sleep are related to the development and progression of chronic diseases.
Carlson, Jordan +10 more
core +2 more sources