Results 91 to 100 of about 54,337 (284)

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

Microgravity-Induced Alterations of Inflammation-Related Mechanotransduction in Endothelial Cells on Board SJ-10 Satellite

Frontiers in Physiology, 2018
Endothelial cells (ECs) are mechanosensitive cells undergoing morphological and functional changes in space. Ground-based study has provided a body of evidences about how ECs can respond to the effect of simulated microgravity, however, these results ...
Ning Li, Ning Li, Chengzhi Wang, Chengzhi Wang, Shujin Sun, Shujin Sun, Chen Zhang, Chen Zhang, Dongyuan Lü, Dongyuan Lü, Qin Chen, Qin Chen, Mian Long, Mian Long   +13 more
doaj   +1 more source

Functional and Structural Adaptations of Skeletal Muscle to Microgravity [PDF]

, 2001
Our purpose is to summarize the major effects of space travel on skeletal muscle with particular emphasis on factors that alter function. The primary deleterious changes are muscle atrophy and the associated decline in peak force and power.
Fitts, Robert, Riley, Danny R, Widrick, Jeffrey J   +2 more
core   +1 more source

Hypogravity research and educational parabolic flight activities conducted in Barcelona: a new Hub of innovation in Europe [PDF]

, 2016
We report on different research and educational activities related to parabolic flights conducted in Barcelona since 2008. We use a CAP10B single-engine aerobatic aircraft flying out of Sabadell Airport and operating in visual flight conditions providing
López Álvarez, David, Pérez Poch, Antoni, Ventura González Alonso, Daniel   +2 more
core   +2 more sources

Effect of artificial gravity on calcaneal bone marrow adipose tissue and mineral content in female and male participants in 60 days of bed rest

Experimental Physiology, EarlyView.
Abstract Modulation of bone marrow adipose tissue (BMAT) with prolonged inactivity was reported in haemopoietic but not in non‐haemopoietic bones. This prospective randomized controlled trial submitted 16 men and 8 women to 60 days of 6° head‐down‐tilt bed rest.
Tammy Liu, Gerd Melkus, Tim Ramsay, Alain Berthiaume, Gabriele Armbrecht, Guy Trudel   +5 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

Gas–Solid Phase Separation of Active Brownian Particles Under Confinement of Hard Walls

Nanomaterials
By means of computer simulations, we have investigated the gas–solid phase separation of active Brownian particles (ABPs) under the confinement of two hard walls, distinct from the gas–liquid phase separation typically seen in bulk systems.
Hao Zhang, Shenghua Xu, Shuangyang Zou, Hongwei Zhou, Wenze Ouyang, Jun Zhong   +5 more
doaj   +1 more source

Research and competition: Best partners [PDF]

NASA's Microgravity Science and Applications Program is directed toward research in the science and technology of processing materials under conditions of low gravity.
Shaw, J. M.
core   +1 more source

An eye on long‐duration spaceflight: Controversies, countermeasures and challenges

Experimental Physiology, EarlyView.
Abstract Space flight‐associated neuroocular syndrome (SANS) is a consequence of long‐duration space flight and is detected in two‐thirds of astronauts. In‐flight, this can cause a change in the refraction of the eyes, requiring graded hypermetropic ‘superfocus adjustable’ glasses, optic nerve head oedema and choroidal folds.
Vincent Wing Sum Ng, Susan Patricia Mollan   +1 more
wiley   +1 more source

Simulated microgravity promotes the formation of tridimensional cultures and stimulates pluripotency and a glycolytic metabolism in human hepatic and biliary tree stem/progenitor cells [PDF]

, 2019
Many pivotal biological cell processes are affected by gravity. The aim of our study was to evaluate biological and functional effects, differentiation potential and exo-metabolome profile of simulated microgravity (SMG) on human hepatic cell line (HepG2)
Alvaro, Domenico, Berloco, Pasquale Bartolomeo, Bizzarri, Mariano, Cardinale, Vincenzo, Carpino, Guido, Casadei, Luca, Costantini, Daniele, Di Matteo, Sabina, Gaudio, Eugenio, Manetti, Cesare, Melandro, Fabio, Nevi, Lorenzo, Overi, Diletta, Safarikia, Samira, Valerio, Mariacristina   +14 more
core   +2 more sources