Results 21 to 30 of about 1,398 (131)

An instrumented centrifuge for studying mouse locomotion and behaviour under hypergravity

open access: yesBiology Open, 2019
Gravity may influence multiple aspects of legged locomotion, from the periods of limbs moving as pendulums to the muscle forces required to support the body.
Benjamin J. H. Smith, James R. Usherwood
doaj   +1 more source

Impacts of the Spaceflight to the Immune System

open access: yesHanggong uju uihakoeji, 2021
Changes the gravity has a significant affect on the immune system. Astronauts experience the gravity changing during spaceflight, especially when launching and landing they experience hypergravity, and during spaceflight they feel microgravity.
Doston Sultonov, Young Hyo Kim
doaj   +1 more source

Hypergravity Attenuates Reactivity in Primary Murine Astrocytes

open access: yesBiomedicines, 2022
Neuronal activity is the key modulator of nearly every aspect of behavior, affecting cognition, learning, and memory as well as motion. Hence, disturbances of the transmission of synaptic signals are the main cause of many neurological disorders. Lesions
Yannick Lichterfeld   +8 more
doaj   +1 more source

Case Report: No Evidence of Intracranial Fluid Shifts in an Astronaut Following an Aborted Launch

open access: yesFrontiers in Neurology, 2021
Spaceflight induces lasting enlargement of the brain's ventricles as well as intracranial fluid shifts. These intracranial fluid shifts have been attributed to prolonged microgravity exposure, however, the potential effects of hypergravity exposure ...
Heather R. McGregor   +8 more
doaj   +1 more source

A firmer understanding of the effect of hypergravity on thyroid tissue: cholesterol and thyrotropin receptor. [PDF]

open access: yesPLoS ONE, 2014
Maintaining a good health requires the maintenance of a body homeostasis which largely depends on correct functioning of thyroid gland. The cells of the thyroid tissue are strongly sensitive to hypogravity, as already proven in mice after returning to ...
Elisabetta Albi   +8 more
doaj   +1 more source

Fault rupture propagation in soil with intercalation using nonlocal model and softening modulus modification

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2023
Fault rupture propagation is more complex in the overlying soil with intercalation than in homogeneous soil, and it is challenging to simulate this phenomenon accurately using the finite element method.
Jisen Shi   +4 more
doaj   +1 more source

The Synergistic Effect of Microwave Radiation and Hypergravity on Rats and the Intervention Effect of Rana Sylvatica Le Conte Oil

open access: yesDose-Response, 2017
Aim: The phenomena of hypergravity and microwave radiation are widespread, which cause more and more concern for the hazards to human health. The aim of this study was to investigate the synergistic effect of microwave radiation and hypergravity on rats ...
Wei Sun   +4 more
doaj   +1 more source

Microgravity and Hypergravity Induced by Parabolic Flight Differently Affect Lumbar Spinal Stiffness

open access: yesFrontiers in Physiology, 2020
The objective of this study was to determine the response of the lumbar spinal motor control in different gravitational conditions. This was accomplished by measuring indicators of lumbar motor control, specifically lumbar spinal stiffness, activity of ...
Jaap Swanenburg   +8 more
doaj   +1 more source

Is sleep affected after microgravity and hypergravity exposure? A pilot study

open access: yesJournal of Sleep Research, Volume 34, Issue 2, April 2025.
Summary Sleep is known to be affected in space travel and in residents of the international space station. But little is known about the direct effects of gravity changes on sleep, if other factors, such as sleep conditions, are kept constant. Here, as a first exploration, we investigated sleep before and after exposure to short bouts of microgravity ...
Barbara Le Roy   +9 more
wiley   +1 more source

Performance testing and preparation methods of similitude materials for explosion modeling in gravelly soil

open access: yesBaozha yu Chongji
Hypergravity centrifuge model testing serves as an effective method for simulating prototype explosion effects, whose successful application relies on soil simulants capable of replicating the dynamic response of in-situ soil.
Haisheng WANG   +8 more
doaj   +1 more source

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