Results 151 to 160 of about 239,302 (308)

Summary of Apollo and Lunar Logistics System Plans [PDF]

The basic mission objective of Project Apollo is to land men on the Moon and return them to Earth at the earliest practicable date. The Apollo crew will consist of three men, two of whom will land on the surface of the Moon, conduct surface operations ...
Taylor, W. B.
core   +1 more source

Impact of a 12‐week high‐intensity interval training intervention on cardiac structure and function after COVID‐19 at 12‐month follow‐up

Experimental Physiology, EarlyView.
Abstract In patients previously hospitalised for COVID‐19, a 12‐week high‐intensity interval training (HIIT) intervention has previously been shown to increase left ventricular mass (LVM) immediately after the intervention. In the present study, we examined the effects of the same HIIT scheme on LVM, pulmonary diffusing capacity, symptom severity and ...
Iben Elmerdahl Rasmussen, Mathilde Løk, Cody Garett Durrer, Anna Agnes Lytzen, Frederik Foged, Vera Graungaard Schelde, Josephine Bjørn Budde, Rasmus Syberg Rasmussen, Emma Fredskild Høvighoff, Villads Rasmussen, Mark Lyngbæk, Simon Jønck, Rikke Krogh‐Madsen, Birgitte Lindegaard, Peter Godsk Jørgensen, Lars Køber, Niels Vejlstrup, Bente Klarlund Pedersen, Mathias Ried‐Larsen, Morten Asp Vonsild Lund, Ronan M. G. Berg, Regitse Højgaard Christensen   +21 more
wiley   +1 more source

A chemical and petrological model of the lunar crust [PDF]

Information is given on the composition and structure of the lunar crust. A lunar model is illustrated, indicating that it has essentially two layers, anorthositic mixed rocks overlaying a generally noritic crystalline basement.
Davis, Philip A., Spudis, Paul D.
core   +1 more source

Jumping on the moon as a potential exercise countermeasure

Experimental Physiology, EarlyView.
Abstract The Moon's gravitational field strength (17% Earth's gravity) may facilitate the use of bodyweight jumping as an exercise countermeasure against musculoskeletal and cardiovascular deconditioning in reduced gravity settings. The present study characterised the acute physiological and kinetic responses to bodyweight jumping in simulated Lunar ...
Patrick Swain, Filipa Santos, Luke Hughes, Dan Gordon, Nick Caplan   +4 more
wiley   +1 more source

Proposal for a lunar tunnel-boring machine [PDF]

A need exists for obtaining a safe and habitable lunar base that is free from the hazards of radiation, temperature gradient, and micrometeorites. A device for excavating lunar material and simultaneously generating living space in the subselenian ...
Allen, Christopher S., Cooper, David W., Davila, David, Jr., Mahendra, Christopher S., Tagaras, Michael A.   +4 more
core   +1 more source

Mesoscale Mechanisms Governing the Shear Strength of Lunar Regolith: Effects of Low Confining Stress and Irregular Particle Morphology. [PDF]

Materials (Basel)
Chen J, Li R, Ji Y, Mo P.
europepmc   +1 more source

Spaceborne and spaceborn: Physiological aspects of pregnancy and birth during interplanetary flight

Experimental Physiology, EarlyView.
Abstract Crewed interplanetary return missions that are on the planning horizon will take years, more than enough time for initiation and completion of a pregnancy. Pregnancy is viewed as a sequence of processes – fertilization, blastocyst formation, implantation, gastrulation, placentation, organogenesis, gross morphogenesis, birth and neonatal ...
Arun V. Holden
wiley   +1 more source

Lunar hydrogen: A resource for future use at lunar bases and space activities [PDF]

Hydrogen abundances were determined for grain size separates of five lunar soils and one soil breccia. The hydrogen abundance studies have provided important baseline information for engineering models undergoing study at the present time.
Bustin, Roberta, Gibson, Everett K., Jr., Mckay, David S.   +2 more
core   +1 more source

Impact-processed nitrogen-bearing organics in Chang'e-5 and Chang'e-6 lunar regolith. [PDF]

Sci Adv
Dong M, Hao J, Changela HG, Tian H, Huang S, He Y, Liu X, Li X, Hu S, Yang W, Lin Y.   +10 more
europepmc   +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