Results 51 to 60 of about 4,869 (218)

The Impact of Altered Gravity and Vibration on Endothelial Cells During a Parabolic Flight

open access: yesCellular 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

Stability Studies of UV Laser Irradiated Promethazine and Thioridazine after Exposure to Hypergravity Conditions

open access: yesMolecules, 2022
Pharmaceuticals carried into space are subjected to different gravitational conditions. Hypergravity is encountered in the first stage, during spacecraft launching.
Ágota Simon   +7 more
doaj   +1 more source

Anatomical and functional brain approach along short abrupt changes in G-levels [PDF]

open access: yes, 2016
To conduct experiments under abrupt changes in g-levels, a single-engine aerobatic aircraft has been used, providing 6-8 seconds of reduced gravity, preceded and followed by 5-7 seconds of hypergravity periods.
Dubert, D.   +6 more
core  

Diffusive foam wetting process in microgravity

open access: yes, 2001
We report the experimental study of aqueous foam wetting in microgravity. The liquid fraction $\ell$ along the bubble edges is measured and is found to be a relevant dynamical parameter during the capillary process.
Ausloos, M.   +5 more
core   +1 more source

Women in space: A review of known physiological adaptations and health perspectives

open access: yesExperimental Physiology, EarlyView.
Abstract Exposure to the spaceflight environment causes adaptations in most human physiological systems, many of which are thought to affect women differently from men. Since only 11.5% of astronauts worldwide have been female, these issues are largely understudied.
Millie Hughes‐Fulford   +4 more
wiley   +1 more source

Stability of Antimicrobial Drug Molecules in Different Gravitational and Radiation Conditions in View of Applications during Outer Space Missions

open access: yesMolecules, 2021
The evolution of different antimicrobial drugs in terrestrial, microgravity and hypergravity conditions is presented within this review, in connection with their implementation during human space exploration.
Ágota Simon   +3 more
doaj   +1 more source

Can Chern-Simons or Rarita-Schwinger be a Volkov-Akulov Goldstone?

open access: yes, 2018
We study three-dimensional non-linear models of vector and vector-spinor Goldstone fields associated with the spontaneous breaking of certain higher-spin counterparts of supersymmetry whose Lagrangians are of a Volkov-Akulov type.
Bansal, Sukruti, Sorokin, Dmitri
core   +1 more source

50% body weight loading reduces stature increases and lumbar disc expansion from 4 h hyper‐buoyancy floatation versus 15 min sitting upright

open access: yesExperimental 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

open access: yesExperimental 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

Hypergravity as a Tool for Cell Stimulation: : Implications in Biomedicine

open access: yesFrontiers in Astronomy and Space Sciences, 2016
Gravity deeply influences numerous biological events in living organisms. Variations in gravity values induce adaptive reactions that have been shown to play important roles, for instance in cell survival, growth, and spatial organization. In this paper,
Giada Graziana Genchi   +9 more
doaj   +1 more source

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