Browsing by Subject "spaceflight"
Now showing items 1-8 of 8
-
(2018-11-09)Spaceflight poses a serious risk to human cardiovascular health in the form of microgravity-induced fluid shifts, exposure to ionizing space radiation, and unique environmental factors. The combinatorial effects of increased ...
-
(2018-06-08)Spaceflight exerts multiple environmental pressures upon astronauts causing both short and long-term physiological adaptations that may be debilitating and interfere with the ability for crewmembers to optimally function ...
-
(2017-04-24)This study examines the training of American astronauts from the selection of the original Mercury astronauts in 1959 to the present, as crews of six work aboard the International Space Station. It makes the primary argument ...
-
(2016-05-04)During human spaceflight missions, controlled variation of atmospheric pressure and oxygen concentration from a sea-level based normal to hyperoxic levels may occur as part of operational procedure. This activity is of ...
-
(2013-02-04)Partial weightbearing that simulates Lunar gravity (one-sixth of Earth’s gravitational force) results in a loss of bone volume. High-energy radiation like that found in galactic cosmic radiation exposure also negatively ...
-
(2020-04-10)For nearly 60 years, astronauts have ventured outside of their spacecraft into the extreme environment of space, performing extravehicular activities (EVAs). The astronauts are protected from the harsh environment of ...
-
(2019-08-15)In recent years, NASA has reported that a significant number of astronauts are experiencing vision acuity loss after both short-term and long-term spaceflight missions. These visual impairments have been hypothesized to ...
-
(2019-08-15)In recent years, NASA has reported that a significant number of astronauts are experiencing vision acuity loss after both short-term and long-term spaceflight missions. These visual impairments have been hypothesized to ...