Results 51 to 60 of about 2,586 (213)

Hypergravity speeds up the development of T-lymphocyte motility [PDF]

, 2006
The effect of altered gravity on single cells has been reported in a number of studies. From the investigation of the immune system response to spaceflight conditions, interest has focused on the influence of gravity on single lymphocytes.
Tolic-Norrelykke, Iva M, Annunziato, Francesco, Pavone, F., Pavone, Francesco S, Iva M. Tolić-Nørrelykke, Galimberti, Massimo, Veronica Santarlasci, Cosmi, L., Tolic-Norrelykke, I., Annunziato, F., Roberto Favillini, Raffaella Mercatelli, Santarlasci, Veronica, Liotta, Francesco, Maggi, Enrico, Francesco Annunziato, Galimberti, M., Favillini, R., Francesco Liotta, Pavone, Francesco Saverio, Mercatelli, Raffaella, Francesco S. Pavone, Santarlasci, V., Massimo Galimberti, Lorenzo Cosmi, Favillini, Roberto, Mercatelli, R., Liotta, F., Maggi, E., Enrico Maggi, Cosmi, Lorenzo   +30 more
core   +1 more source

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

Baozha 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, Longhua GUAN, Bin ZHU, Qiang LU, Yang DING, Junchao LI, Yubing WANG, Weijun LI, Zheng PANG   +8 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

Dose-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, Yudan Yang, Hongmei Yu, Luowei Wang, Su Pan   +4 more
doaj   +1 more source

Consistency problems of hypergravity

Physics Letters B, 1979
Abstract The constraints arising upon coupling a massless spin 5 2 field to gravity are analyzed. In contrast to supergravity, they depend not only on the Einstein tensor, but also on the off-shell (Weyl) components of the curvature. The latter contributions do vanish, however, for “self-dual” systems, i.e., half-flat gravitational and pure ...
C. Aragone, S. Deser
openaire   +1 more source

Responses to Hypergravity in Proliferation of Paramecium tetraurelia [PDF]

Zoological Science, 2003
It has been reported that Paramecium proliferates faster when cultured under microgravity in orbit, and slower when cultured under hypergravity. This shows that the proliferation rate of Paramecium affected by gravity. The effect of gravity on Paramecium proliferation has been argued to be direct in a paper with an axenic culture under hypergravity. To
Yuko, Kato, Yoshihiro, Mogami, Shoji A, Baba   +2 more
openaire   +2 more sources

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

Journal 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, Aurore Jouvencel, Anika Friedl‐Werner, Ludmila Renel, Youcef Cherchali, Raouf Osseiran, Ernesto Sanz‐Arigita, Jean‐René Cazalets, Etienne Guillaud, Ellemarije Altena   +9 more
wiley   +1 more source

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

Experimental 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, Danielle J. Carroll, Heather C. M. Allaway, Bonnie J. Dunbar, Aenor J. Sawyer   +4 more
wiley   +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

Experimental 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, Christina Lysandrou, Laura Sudres, Alfonso Gil‐Martinez, Jaap Swanenburg, James Edward Clark, David Andrew Green   +6 more
wiley   +1 more source

The importance of gravity vector on adult mammalian organisms: Effects of hypergravity on mouse testis.

PLoS ONE, 2023
In the age of space exploration, the effect of hypergravity on human physiology is a relatively neglected topic. However, astronauts have several experiences of hypergravity during their missions. The main disturbance of altered gravity can be imputed to
Valentina Bonetto, Valeria Magnelli, Maurizio Sabbatini, Flavia Caprì, Jack J W A van Loon, Sara Tavella, Maria Angela Masini   +6 more
doaj   +1 more source

An experimentally informed computational model of neurovestibular adaptation to altered gravity

Experimental 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