T Scratcherd,D Grundy
T Scratcherd
This paper briefly reviews the subject of bone remodelling and calcium homeostasis and considers the changes that occur in the microgravity environment of space. The effectiveness of exercise as a countermeasure to bone demineralisation is ...
A Angel
A Angel
The translation of man from terrestrial to an extra terrestrial environment is accompanied by an upset in the servo-control of movement engendered by the removal of the normal gravitational signal. Unfortunately the "natural" response of th...
I W Henderson
I W Henderson
Under conditions of microgravity severe alterations in body fluid composition and volume take place largely as a result of "cardiothoracic pooling" or headward shift of blood. Inappropriate endocrine, renal and cardiovascular responses resu...
C C Harling
C C Harling
Space flight is normally associated with exposure to reduced acceleration (microgravity) and the medical consequences are well described. However, it inevitably also requires periods of increased acceleration during ascent and descent. Thes...
Biophysics in space [0.03%]
空间生物物理学
P A Hansson
P A Hansson
Biophysics is an interdisciplinary field of study where various disciplines work together, with results of much interest to many scientists and students of the life sciences. Since physics is not always accessible to and understandable to b...
D Grundy,T Scratcherd
D Grundy
In Space many bodily functions adjust to the absence of gravity. Our understanding of these homeostatic processes have depended on studies on man and other animals. The present paper briefly reviews how such studies may benefit some terrest...
P A Hansson
P A Hansson
The central difficulties confronting us at present in exobiology are the problems of the physical forces which sustain three-dimensional organisms, i.e., how one dimensional systems with only nearest interaction and two dimensional ones wit...
D T Andersen,C P McKay,R A Wharton Jr et al.
D T Andersen et al.
During the next 50 years, human civilization may well begin expanding into the solar system. This colonization of extraterrestrial bodies will most likely begin with the establishment of small research outposts on the Moon and/or Mars. In a...
B M Oliver
B M Oliver
To reach even the nearest stars in a human lifetime requires a ship speed that is a substantial fraction of the speed of light. This means an enormous kinetic energy investment in the ship and suggests that maximizing the efficiency may be ...
The effects of prolonged weightlessness and reduced gravity environments on human survival [0.03%]
长时间的失重和低重力环境对人体生存的影响
R L Taylor
R L Taylor
The manned exploration of the solar system and the surfaces of some of the smaller planets and larger satellites requires that we are able to keep the adverse human physiological response to long term exposure to near zero and greatly reduc...