Results 121 to 130 of about 40,337 (302)

Designing Beyond Current Conceptualizations of Spaceflight Experiences [PDF]

arXiv
The potential future democratization of spaceflight reveals a need for design of experiences that extend beyond our current conceptualization of spaceflight. Research on career astronauts indicates that transformative experiences occur during spaceflight despite the physiological and psychological stressors involved.
arxiv  

Jumping on the moon as a potential exercise countermeasure

Experimental Physiology, EarlyView.
Abstract The Moon's gravitational field strength (17% Earth's gravity) may facilitate the use of bodyweight jumping as an exercise countermeasure against musculoskeletal and cardiovascular deconditioning in reduced gravity settings. The present study characterised the acute physiological and kinetic responses to bodyweight jumping in simulated Lunar ...
Patrick Swain, Filipa Santos, Luke Hughes, Dan Gordon, Nick Caplan   +4 more
wiley   +1 more source

A Simulated Microgravity Environment Causes a Sustained Defect in Epithelial Barrier Function. [PDF]

, 2019
Intestinal epithelial cell (IEC) junctions constitute a robust barrier to invasion by viruses, bacteria and exposure to ingested agents. Previous studies showed that microgravity compromises the human immune system and increases enteropathogen virulence.
Alvarez, Rocio, Marchelletta, Ronald R, McCole, Declan F, Prisk, G Kim, Sayoc-Becerra, Anica, Stork, Cheryl A   +5 more
core   +1 more source

Experimental modification of rat pituitary prolactin cell function during and after spaceflight [PDF]

, 1996
W. C. Hymer, T. Salada, Leon Avery, R. E. Grindeland   +3 more
openalex   +1 more source

Unveiling Parkinson's Disease-like Changes Triggered by Spaceflight [PDF]

arXiv
A meta-analysis of spaceflight data from both mouse and human flights reveals a striking overlap with Parkinson's disease (PD). Parallels include: changes in gait, loss of dopamine, sustained changes in the basal ganglia, loss of tyrosine hydroxylase in the substantia nigra, and systemic mitochondrial dysfunction.
arxiv  

Limits and Signatures of Relativistic Spaceflight [PDF]

arXiv, 2015
While special relativity imposes an absolute speed limit at the speed of light, our Universe is not empty Minkowski spacetime. The constituents that fill the interstellar/intergalactic vacuum, including the cosmic microwave background photons, impose a lower speed limit on any object travelling at relativistic velocities. Scattering of cosmic microwave
arxiv  

ATHLETIC: An exoskeleton countermeasure exercise device for resistive and plyometric training in deep‐space missions

Experimental Physiology, EarlyView.
Abstract Prolonged exposure to weightlessness leads to loss of muscle and bone mass. Therefore, astronauts on board the International Space Station (ISS) currently perform mandatory daily exercises. ISS missions usually last 6 months, and future missions will become significantly longer when going, for example, to Mars.
Jonas Böcker, Jochen Zange, Torsten Siedel, Guillaume Fau, Sebastian Langner, Thomas Krueger, Jörn Rittweger   +6 more
wiley   +1 more source

Yuri Kondratyuk - the seer of spaceflight courses [PDF]

, 1995
A.M. Borodenkov, N.V. Volkov, A.G. Dormidontov, A.І. Stegniy   +3 more
openalex   +1 more source

Prostheticity, Disability, and Spaceflight

Con Texte, 2018
In this short work, the author will reflect on how we might understand the technology-subject relationship in a way that equally captures the position of the individual with a disability and that of the interplanetary astronaut. The works of Tamar Sharon in mediated posthumanism and Dan Goodley in critical disability studies will be consulted.
openaire   +3 more sources

Microgravity‐induced changes in skeletal muscle and possible countermeasures: What we can learn from bed rest and human space studies

Experimental Physiology, EarlyView.
Abstract Despite exercise countermeasures to sustain health and performance in spaceflight, complete maintenance of muscle mass and functions in microgravity is still not possible for most astronauts. The principal cause of the limited effectiveness of existing exercise countermeasures is the difficulty in achieving full loading forces in space.
Alessandra Bosutti, Bergita Ganse, Nicola A. Maffiuletti, Rob C. I. Wüst, Gustav J. Strijkers, Andy Sanderson, Hans Degens   +6 more
wiley   +1 more source