Results 31 to 40 of about 38,078 (231)
Fluidic shaping and in-situ measurement of liquid lenses in microgravity
npj Microgravity, 2023 In the absence of gravity, surface tension dominates over the behavior of liquids. While this often poses a challenge in adapting Earth-based technologies to space, it can also provide an opportunity for novel technologies that utilize its advantages. In
Omer Luria +11 more
doaj +1 more source
Parabolic flight as a spaceflight analog [PDF]
Journal of Applied Physiology, 2016 Ground-based analog facilities have had wide use in mimicking some of the features of spaceflight in a more-controlled and less-expensive manner. One such analog is parabolic flight, in which an aircraft flies repeated parabolic trajectories that provide short-duration periods of free fall (0 g) alternating with high- g pullout or recovery phases ...
openaire +2 more sources
Photolyzable Polymer Brushes: Subtractive 3D Structuring of Surfaces Using Water and Light
Angewandte Chemie, EarlyView.Facile structuring of polymer brushes is achieved by flipping the process from controlled growth to controlled brush photolysis. Using surface‐initiated radical ring‐opening polymerization of cyclic monomers with photocleavable cyclobutane rings, photodegradable targets are embedded into the polymer chains. The enabled continuous subtractive patterning
Henrik Kalmer +11 more
wiley +2 more sources
Hypogravity reduces trunk admittance and lumbar muscle activation in response to external perturbations [PDF]
, 2020 Reduced paraspinal muscle size and flattening of spinal curvatures have been documented after spaceflight. Assessment of trunk adaptations to hypogravity can contribute to develop specific countermeasures.
Caplan, Nick +13 more
core +4 more sources
The Quest for the Most Spherical Bubble [PDF]
, 2013 We describe a recently realized experiment producing the most spherical cavitation bubbles today. The bubbles grow inside a liquid from a point-plasma generated by a nanosecond laser pulse. Unlike in previous studies, the laser is focussed by a parabolic
de Bosset, Aurele +5 more
core +2 more sources
Effects of Local Gravity Compensation on Motor Control During Altered Environmental Gravity
Frontiers in Neural Circuits, 2021 Our sensorimotor control is well adapted to normogravity environment encountered on Earth and any change in gravity significantly disturbs our movement.
Tjasa Kunavar +10 more
doaj +1 more source
Lipid Signalling in Human Immune Response and Bone Remodelling under Microgravity
Applied Sciences, 2020 Since the first Apollo mission in 1969, microgravity has been linked to many alterations of astronauts’ physiology, among which immunosuppression, altered inflammation and bone loss represent relevant examples.
Marina Fava +2 more
doaj +1 more source
Spatial Updating Depends on Gravity
Frontiers in Neural Circuits, 2020 As we move through an environment the positions of surrounding objects relative to our body constantly change. Maintaining orientation requires spatial updating, the continuous monitoring of self-motion cues to update external locations.
Alexander Christoph Stahn +11 more
doaj +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
Frontiers in Physiology, 2020 BackgroundProfound knowledge about cardiovascular physiology in the setting of microgravity can help in the course of preparations for human space missions.
Nana-Yaw Bimpong-Buta +8 more
doaj +1 more source