Results 31 to 40 of about 8,248 (163)

Investigation of the Film Cooling Performance of Laminated SiC_fSiC Composite Plates

Aerospace
Silicon carbide fiber-reinforced silicon carbide matrix ceramic composites (SiCf/SiC) are extensively utilized in high-temperature resistant materials in the aerospace industry.
Zhaoguo Mi, Zhenhua Chen, Kanghe Jiang, Weihua Yang   +3 more
doaj   +1 more source

Long-term space missions’ effects on the human organism: what we do know and what requires further research

Frontiers in Physiology
Space has always fascinated people. Many years have passed since the first spaceflight, and in addition to the enormous technological progress, the level of understanding of human physiology in space is also increasing.
Marcin Tomsia, Julia Cieśla, Joanna Śmieszek, Szymon Florek, Agata Macionga, Katarzyna Michalczyk, Dominika Stygar, Dominika Stygar   +7 more
doaj   +1 more source

Incomplete recovery of bone strength and trabecular microarchitecture at the distal tibia 1 year after return from long duration spaceflight

Scientific Reports, 2022
Determining the extent of bone recovery after prolonged spaceflight is important for understanding risks to astronaut long-term skeletal health. We examined bone strength, density, and microarchitecture in seventeen astronauts (14 males; mean 47 years ...
Leigh Gabel, Anna-Maria Liphardt, Paul A. Hulme, Martina Heer, Sara R. Zwart, Jean D. Sibonga, Scott M. Smith, Steven K. Boyd   +7 more
doaj   +1 more source

The Biological Overview Effect: Our Place in Nature

Journal of Big History, 2019
While gazing at the Earth from orbit, some astronauts have described a cognitive shift known as the overview effect. Here we describe an analogous biological overview effect produced by looking at the tiny twig of humanity on the tree of life.
Charles H. Lineweaver, Aditya Chopra
doaj   +1 more source

The Role of Mechanical Stimulation in Recovery of Bone Loss—High versus Low Magnitude and Frequency of Force

Life, 2014
Musculoskeletal pathologies associated with decreased bone mass, including osteoporosis and disuse-induced bone loss, affect millions of Americans annually.
Mamta Patel Nagaraja, Hanjoong Jo
doaj   +1 more source

Microgravity and Cardiovascular Health in Astronauts: A Narrative Review

Health Science Reports
Background Space exploration has become a major interest for scientific and medical research. With increasing duration and frequency of manned space missions, it is crucial to understand the impact of microgravity on the cardiovascular health of ...
John Azariah, Umberto Terranova
doaj   +1 more source

Cognitive performance in ISS astronauts on 6-month low earth orbit missions

Frontiers in Physiology
IntroductionCurrent and future astronauts will endure prolonged exposure to spaceflight hazards and environmental stressors that could compromise cognitive functioning, yet cognitive performance in current missions to the International Space Station ...
Sheena I. Dev, Alaa M. Khader, Sydney R. Begerowski, Steven R. Anderson, Gilles Clément, Suzanne T. Bell   +5 more
doaj   +1 more source

Redefining space pharmacology: bridging knowledge gaps in drug efficacy and safety for deep space missions

Frontiers in Space Technologies
The space environment is incredibly hostile, and humans are vulnerable in such conditions. Astronauts encounter various stress factors during a space journey, including radiation, microgravity, forceful acceleration during launch, altered magnetic fields,
Karen Barchetti, Karen Barchetti, Karen Barchetti, Audrey Derobertmasure, Audrey Derobertmasure, Audrey Derobertmasure, Pierre Boutouyrie, Pierre Boutouyrie, Pierre Boutouyrie, Piero Sestili   +9 more
doaj   +1 more source

Poor Understanding of Radiation Profiles in Deep Space Causes Inaccurate Findings and Misleading Conclusions [PDF]

Journal of Biomedical Physics and Engineering, 2019
The radiation environment in deep space, where astronauts are behind the shelter provided by the Earth’s magnetosphere, is a major health concern. Galactic cosmic rays (GCR) and solar particle events (SPE) are two basic sources of space radiation in the ...
J J Bevelacqua, S M J Mortazavi
doaj  

Exploring Similarities Across the Space and Theater Industries

Frontiers in Psychology, 2021
Konstantin Chterev, Konstantin Chterev, Maria Eugenia Panero   +2 more
doaj   +1 more source