Results 41 to 50 of about 34,554 (299)

Neuropsychological considerations for long-duration deep spaceflight

Frontiers in Physiology, 2023
The deep space environment far beyond low-Earth orbit (LEO) introduces multiple and simultaneous risks for the functioning and health of the central nervous system (CNS), which may impair astronauts’ performance and wellbeing.
Afik Faerman, Jonathan B. Clark, Jonathan B. Clark, Jeffrey P. Sutton, Jeffrey P. Sutton, Jeffrey P. Sutton   +5 more
doaj   +1 more source

Enhanced nonlinear active noise control: A novel approach using brain storm optimization algorithm

Heliyon
Active Noise Control (ANC) systems play a crucial role in reducing unwanted noise in various settings. Traditional ANC methods, like the Filtered-x Least Mean Squares (FxLMS) algorithm, are effective in linear noise scenarios.
Jiangchun Xie, Jianmin Ma
doaj   +1 more source

Spaceflight on the ISS changed the skeletal muscle proteome of two astronauts

npj Microgravity
Skeletal muscle undergoes atrophy and loss of force during long space missions, when astronauts are persistently exposed to altered gravity and increased ionizing radiation.
M. Murgia, J. Rittweger, Carlo Reggiani, R. Bottinelli, Matthias Mann, Stefano Schiaffino, M. Narici   +6 more
semanticscholar   +1 more source

Comparison of Dural Venous Sinus Volumes Before and After Flight in Astronauts With and Without Spaceflight-Associated Neuro-Ocular Syndrome

JAMA Network Open, 2021
Key Points Question Given that thrombosis and abnormal internal jugular venous flow have been documented in astronauts, does a retrograde extension of clot occur intracranially, and is abnormal dural venous sinus flow associated with spaceflight ...
Mark J. Rosenberg, Michael A. Coker, James A Taylor, M. Yazdani, M. Matheus, Christopher K Blouin, Sami Al Kasab, H. Collins, D. Roberts   +8 more
semanticscholar   +1 more source

Dance of two brains: Interval subdivision in alternated condition enhances resistance to interference by others

NeuroImage
The accomplishment of interpersonal sensorimotor synchronization is a challenging endeavor because it requires the achievement of a balance between accurate temporal control within individuals and smooth communication between them. This raises a critical
Ruoyu Niu, Xiaodan Xu, Weicai Tang, Yi Xiao, Rixin Tang   +4 more
doaj   +1 more source

Gut permeability among Astronauts during Space missions.

Life sciences and space research
The space environment poses substantial challenges to human physiology, including potential disruptions in gastrointestinal health. Gut permeability has only recently become widely acknowledged for its potential to cause adverse effects on a systemic ...
Oluwamayowa S Akinsuyi, Jessica Xhumari, Amanda Ojeda, L. F. Roesch   +3 more
semanticscholar   +1 more source

Longitudinal change in ventricular volume is accelerated in astronauts undergoing long-duration spaceflight

Aging Brain, 2021
An 11–25% increase in total ventricular volume has been documented in astronauts following spaceflight on the ISS. Given the approximately 2-year time interval between pre- and post-flight MRI, it is unknown if ventricular enlargement simply reflects ...
D. Roberts, D.C. Inglesby, T. Brown, H. Collins, M. Eckert, D. Asemani   +5 more
semanticscholar   +1 more source

Cell‐Free Mitochondrial DNA as a Potential Biomarker for Astronauts' Health

Journal of the American Heart Association : Cardiovascular and Cerebrovascular Disease, 2021
Background Space travel–associated stressors such as microgravity or radiation exposure have been reported in astronauts after short‐ and long‐duration missions aboard the International Space Station.
Malik Bisserier, S. Shanmughapriya, A. Rai, C. Gonzalez, Agnieszka Brojakowska, V. Garikipati, M. Madesh, P. Mills, Kenneth Walsh, A. Arakelyan, R. Kishore, Lahouaria Hadri, David A. Goukassian   +12 more
semanticscholar   +1 more source

Investigation of High-Speed Rubbing Behavior of GH4169 Superalloy with SiC/SiC Composites

Aerospace
The silicon carbide fiber-reinforced silicon carbide matrix (SiC/SiC), ceramic matrix composite (CMC) and nickel-based superalloy GH4169 can be utilized in high-temperature applications due to their high-temperature performance.
Zhaoguo Mi, Kanghe Jiang, Yicheng Yang, Zhenhua Cheng, Weihua Yang, Zhigang Sun   +5 more
doaj   +1 more source

A bespoke health risk assessment methodology for the radiation protection of astronauts

Radiation and Environmental Biophysics, 2021
An alternative approach that is particularly suitable for the radiation health risk assessment (HRA) of astronauts is presented. The quantity, Radiation Attributed Decrease of Survival (RADS), representing the cumulative decrease in the unknown survival ...
L. Walsh, L. Hafner, U. Straube, A. Ulanowski, A. Fogtman, M. Durante, G. Weerts, U. Schneider   +7 more
semanticscholar   +1 more source