Results 121 to 130 of about 8,506,446 (327)

Dispelling the myth of robotic efficiency: why human space exploration will tell us more about the Solar System than will robotic exploration alone

, 2012
There is a widely held view in the astronomical community that unmanned robotic space vehicles are, and will always be, more efficient explorers of planetary surfaces than astronauts (e.g. Coates, 2001; Clements 2009; Rees 2011).
Beattie, Clements, Coates, Cockell, Crawford, Crawford, Garvin, I A Crawford, Leone, Lester, NRC, Orloff, Rees, Snook, Spudis, Squyres, Turner, Wilhelms, Wilson   +18 more
core   +1 more source

Microgravity‐induced changes in skeletal muscle and possible countermeasures: What we can learn from bed rest and human space studies

Experimental Physiology, EarlyView.
Abstract Despite exercise countermeasures to sustain health and performance in spaceflight, complete maintenance of muscle mass and functions in microgravity is still not possible for most astronauts. The principal cause of the limited effectiveness of existing exercise countermeasures is the difficulty in achieving full loading forces in space.
Alessandra Bosutti, Bergita Ganse, Nicola A. Maffiuletti, Rob C. I. Wüst, Gustav J. Strijkers, Andy Sanderson, Hans Degens   +6 more
wiley   +1 more source

Phenotypic and genomic assessment of the potential threat of human spaceflight-relevant Staphylococcus capitis isolates under stress conditions. [PDF]

Front Microbiol, 2022
Siems K, Runzheimer K, Rehm A, Schwengers O, Heidler von Heilborn D, Kaser L, Arndt F, Neidhöfer C, Mengel JP, Parcina M, Lipski A, Hain T, Moeller R.   +12 more
europepmc   +1 more source

Isolation and confinement due to the COVID-19 pandemic: Lessons for human spaceflight. [PDF]

Acta Astronaut, 2022
Arquilla K, Webb AK, Anderson AP.
europepmc   +1 more source

Supportability Challenges, Metrics, and Key Decisions for Future Human Spaceflight

, 2017
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C. Stromgren, K. Goodliff, W. Cirillo, A. Owens, O. Weck   +4 more
semanticscholar   +1 more source

Effects of radiation on humans during prolonged spaceflight [PDF]

, 1992
Ruth Reynolds
openalex   +1 more source

Experiment K-6-03. Gravity and skeletal growth, part 1. Part 2: Morphology and histochemistry of bone cells and vasculature of the tibia; Part 3: Nuclear volume analysis of osteoblast histogenesis in periodontal ligament cells; Part 4: Intervertebral disc swelling pressure associated with microgravity [PDF]

Bone area, bone electrophysiology, bone vascularity, osteoblast morphology, and osteoblast histogenesis were studied in rats associated with Cosmos 1887.
Berretta, D., Doty, S., Durnova, G., Garetto, L., Gonsalves, M., Gott, S., Hargens, A., Holton, E., Kaplansky, A., Roberts, W.   +9 more
core   +1 more source

Response of lymphocytes to a mitogenic stimulus during spaceflight [PDF]

Several studies were performed that demonstrate that immunological activities of lymphocytes can be affected by spaceflight or by models that attempt to simulate some aspects of weightlessness.
Sonnenfeld, Gerald
core   +1 more source

Secretome profiling reveals acute changes in oxidative stress, brain homeostasis, and coagulation following short-duration spaceflight

Nature Communications
As spaceflight becomes more common with commercial crews, blood-based measures of crew health can guide both astronaut biomedicine and countermeasures. By profiling plasma proteins, metabolites, and extracellular vesicles/particles (EVPs) from the SpaceX
Nadia Houerbi, JangKeun Kim, Eliah G. Overbey, Richa Batra, Annalise Schweickart, Laura Patras, Serena Lucotti, Krista A. Ryon, Deena Najjar, Cem Meydan, Namita Damle, Christopher Chin, S. Anand Narayanan, Joseph W. Guarnieri, Gabrielle Widjaja, Afshin Beheshti, Gabriel Tobias, Fanny Vatter, Jeremy Wain Hirschberg, Ashley Kleinman, Evan E. Afshin, Matthew MacKay, Qiuying Chen, Dawson Miller, Aaron S. Gajadhar, Lucy Williamson, Purvi Tandel, Qiu Yang, Jessica Chu, Ryan Benz, Asim Siddiqui, Daniel Hornburg, Steven Gross, Bader Shirah, Jan Krumsiek, Jaime Mateus, Xiao Mao, Irina Matei, Christopher E. Mason   +38 more
doaj   +1 more source

Time‐course analysis of cerebral circulation and cardiorespiratory responses to acute central blood volume reduction in healthy young males

Experimental Physiology, EarlyView.
Abstract Central blood volume (CBV) reduction challenges circulatory and respiratory homeostasis, particularly during the initial compensatory phase (0–2 min), when rapid physiological adaptations occur. In this study, we examined dynamic cardiorespiratory responses to CBV reduction using lower‐body negative pressure (LBNP) in 11 healthy young males ...
Marina Feeley, Tomoki Watada, Go Ito, Ai Shimada, Toru Sawai, Hideomi Nakata, Shingo Otsuki, Tadayoshi Miyamoto   +7 more
wiley   +1 more source