Results 271 to 280 of about 8,506,446 (327)

Venous Thromboembolism in Exploration Class Human Spaceflight.

Aerospace Medicine and Human Performance
INTRODUCTION: A recent finding of a deep venous thrombosis during spaceflight has prompted the need to clarify mechanisms and risks of venous thromboembolism (VTE). In turn, mitigation countermeasures, diagnostic modalities, and treatment options must be
Sophie Levasseur, Nina Purvis, Sophia Trozzo, Seok Hoon Chung, M. Ades, Laura M. Drudi   +5 more
semanticscholar   +1 more source

Human Factors in Spaceflight: New Progress on a Long Journey

Hum. Factors, 2023
Lauren Blackwell Landon, Behavioral Health & Performance Laboratory, Biomedical Research and Environmental Sciences Division, Human Health and Performance Directorate, KBR at NASA Johnson Space Center, Houston, Texas, USA, Jessica J.
L. B. Landon, J. Márquez, Eduardo Salas
semanticscholar   +1 more source

Is Human Spaceflight Now Obsolete?

Science, 2004
During the past year, there have been painstaking, and painful, investigations of the tragic loss of the space shuttle Columbia and its seven crew members. Congressional committees are now scrutinizing the competence of the investigators and reviewing perceived managerial and budgetary shortcomings of NASA.
openaire   +2 more sources

The future of human spaceflight

Acta Astronautica, 2001
After the Apollo Moon program, the international space station represents a further milestone of humankind in space, International follow-on programs like a manned return to the Moon and a first manned Mars Mission can be considered as the next logical step. More and more attention is also paid to the topic of future space tourism in Earth orbit, which
openaire   +2 more sources

Potential of Commercial Human Spaceflight

International Review of Aerospace Engineering (IREASE), 2017
The Space Race between the Soviet Union and the United States back in 1960s had propelled vast development of space technology. Although it was still nascent during that time, space technology had spurred the launch of the first human to outer space and eventually the first human to step on the Moon.
Zahari, Abdul Raof, Romli, Fairuz Izzuddin   +1 more
openaire   +1 more source

History of human spaceflight

2013
Over a period of about two centuries humans learned how to travel farther and farther from the surface of the Earth. However, we still have limited experience of flight in space. Progress was fast during the Cold War, when the competitive spirit between the United States and the Soviet Union drove both nations’ space engineers to work towards goals of ...
Sven Grahn, Carol Norberg
openaire   +1 more source

Changes to human sleep architecture during long‐duration spaceflight

Journal of Sleep Research
Both rapid eye movement and non‐rapid eye movement sleep are important for cognitive function and well‐being, yet few studies have examined whether human sleep architecture is affected by long‐duration spaceflight.
O. Piltch, E. Flynn-Evans, Millennia Young, R. Stickgold   +3 more
semanticscholar   +1 more source

Seeking justifications for human spaceflight

Space Policy, 1994
Abstract Traditionally cited benefits such as scientific and economic progress or political advantages have been widely recognized as insufficient to justify ongoing and future human spaceflight programmes in today's prevailing geopolitical and socioeconomic environment.
Jens Fromm, Armin Grunwald, Hartmut Sax
openaire   +1 more source

Human spaceflight: science or spectacle?

Physics World, 2009
On 20 July 1969 NASA's Apollo11 mission landed on the surface of the Moon. Apollo was done, to paraphrase US President John F Kennedy, because it was hard, and human spaceflight still remains very hard. Indeed, since the sixth and final Apollo lunar landing in December 1972, all of human spaceflight has been constrained to low Earth orbit – just a few ...
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Human skeletal muscle protein breakdown during spaceflight

American Journal of Physiology-Endocrinology and Metabolism, 1997
Human spaceflight is associated with a loss of body protein. Excretion of 3-methylhistidine (3-MH) in the urine is a useful measurement of myofibrillar protein breakdown. Bed rest, particularly with 6 degrees head-down tilt, is an accepted ground-based model for human spaceflight.
T P, Stein, M D, Schluter
openaire   +2 more sources