Results 21 to 30 of about 5,655 (211)
Cardiac arrhythmias during long-duration spaceflights
Journal of Arrhythmia, 2014 Few studies have investigated cardiac arrhythmias during spaceflight. Atrial and ventricular premature contractions, short-duration atrial fibrillation, and non-sustained ventricular tachycardia were reported by previous spaceflight programs.
Tagayasu Anzai, MD +2 more
doaj +1 more source
Addressing the envisioned world problem: a case study in human spaceflight operations
Design Science, 2019 The construction of future technological systems in work domains that do not yet exist, known as the envisioned world problem, is an increasingly important topic for designers, particularly given the rapid rate of technological advancement in the modern ...
Matthew J. Miller, Karen M. Feigh
doaj +1 more source
Frontiers in Microbiology, 2021 BackgroundCrewed National Aeronautics and Space Administration (NASA) missions to other solar system bodies are currently being planned. One high-profile scientific focus during such expeditions would be life detection, specifically the discovery of past
David Danko +15 more
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Development of the Self-Powered Extravehicular Mobility Unit Extravehicular Activity Data Recorder [PDF]
42nd International Conference on Environmental Systems, 2012 The Self-Powered Extravehicular Mobility Unit (EMU) Extravehicular Activity (EVA) Data Recorder (SPEEDR) is a field-programmable gate array (FPGA)-based device designed to collect high-rate EMU Primary Life Support Subsystem (PLSS) data for download at a later time.
Craig Bernard +4 more
openaire +1 more source
Indices of Increased Decompression Stress Following Long-Term Bed Rest
Frontiers in Physiology, 2018 Human extravehicular activity (EVA) is essential to space exploration and involves risk of decompression sickness (DCS). On Earth, the effect of microgravity on physiological systems is simulated in an experimental model where subjects are confined to a ...
Mikael Gennser +4 more
doaj +1 more source
npj Microgravity, 2021 Gas pressurized spacesuits are cumbersome, cause injuries, and are metabolically expensive. Decreasing the gas pressure of the spacesuit is an effective method for improving mobility, but reduction in the total spacesuit pressure also results in a higher
Logan Kluis, Ana Diaz-Artiles
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A Study on the Design and Implementation Technologies of EVA at the China Space Station
AerospaceExtravehicular activity (EVA) is a key point and a difficult point for manned spaceflight tasks, as well as an inevitable trend in the development of the manned spaceflight industry.
Xuedong Li +3 more
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The Apollo Number: space suits, self-support, and the walk-run transition. [PDF]
PLoS ONE, 2009 BackgroundHow space suits affect the preferred walk-run transition is an open question with relevance to human biomechanics and planetary extravehicular activity. Walking and running energetics differ; in reduced gravity (
Christopher E Carr, Jeremy McGee
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Embedded Interactions and Selective Disclosure: Network Effects on Conversations aboard Skylab
Symbolic Interaction, EarlyView.How do absent others influence our interactions? We argue in this paper that interactions are embedded within networks formed by chains of specific relationships between known third parties. The anticipation of future interactions with external others conditions our interpretation of the current situation and affects our behavior in the interaction. We
Michael Schultz +2 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 +4 more
wiley +1 more source