Computer Science – Sound
Scientific paper
Aug 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994adspr..14...49h&link_type=abstract
Advances in Space Research, Volume 14, Issue 8, p. 49-60.
Computer Science
Sound
2
Scientific paper
The orientation behavior of Paramecium changed in a similar way after transition to conditions of free-fall in a sounding rocket and after transition to conditions of simulated weightlessness on a fast rotating clinostat. After a period of residual orientation, Paramecium cells distributed themselves randomly 80 s (120 s) after onset of free-fall (simulated weightlessness). Swimming velocity increased significantly; however, the increase was transient and subsided after 3 min in the rocket experiments, while the velocity remained enhanced even during 2 h of rotation on a fast clinostat. Trichocysts were present and without morphological changes in Paramecium cells which had been exposed to a rocket flight, as well as to fast or slow rotation on a clinostat. Regeneration of the oral apparatus of Stentor and morphogenesis of Eufolliculina proceeded normally on the clinostat. The results demonstrate that the clinostat is a useful tool to stimulate the conditions of weightlessness on earth and to detect gravisensitive cellular functions.
Briegleb Wolfgang
Häder Donat-Peter
Hemmersbach-Krause R.
Klein Sebastian
Mulisch M.
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