Propulsive force of Paramecium as revealed by the video centrifuge microscope
Using the video centrifuge microscope we constructed, we observed the behavior of Paramecium cells in a solution of graded densities under centrifugal acceleration. Beyond 300g, they not only gather in the zone where the density is closest to theirs, but also orient themselves with their longitudina...
Ausführliche Beschreibung
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Englisch |
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1989 |
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Elsevier Journal Backfiles on ScienceDirect 1907 - 2002 |
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Übergeordnetes Werk: |
in: Experimental Cell Research - Amsterdam : Elsevier, 184(1989), 1, Seite 268-272 |
Übergeordnetes Werk: |
volume:184 ; year:1989 ; number:1 ; pages:268-272 |
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NLEJ183674189 |
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520 | |a Using the video centrifuge microscope we constructed, we observed the behavior of Paramecium cells in a solution of graded densities under centrifugal acceleration. Beyond 300g, they not only gather in the zone where the density is closest to theirs, but also orient themselves with their longitudinal axis parallel to the direction of centrifugation turning their anterior ends toward either centripetal or centrifugal direction. Since all of them retain still active swimming capacity, it is possible to calculate their propulsive force from the difference in density between theirs (1.04 g cm^-^3) and that of the upper or lower layer which they can reach. The propulsive force of single Paramecium cells thus obtained was calculated to be about 7 x 10^-^4 dyn. | ||
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(DE-627)NLEJ183674189 (DE-599)GBVNLZ183674189 DE-627 ger DE-627 rakwb eng Propulsive force of Paramecium as revealed by the video centrifuge microscope 1989 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Using the video centrifuge microscope we constructed, we observed the behavior of Paramecium cells in a solution of graded densities under centrifugal acceleration. Beyond 300g, they not only gather in the zone where the density is closest to theirs, but also orient themselves with their longitudinal axis parallel to the direction of centrifugation turning their anterior ends toward either centripetal or centrifugal direction. Since all of them retain still active swimming capacity, it is possible to calculate their propulsive force from the difference in density between theirs (1.04 g cm^-^3) and that of the upper or lower layer which they can reach. The propulsive force of single Paramecium cells thus obtained was calculated to be about 7 x 10^-^4 dyn. Elsevier Journal Backfiles on ScienceDirect 1907 - 2002 Kuroda, K. oth Kamiya, N. oth in Experimental Cell Research Amsterdam : Elsevier 184(1989), 1, Seite 268-272 (DE-627)NLEJ177031808 (DE-600)1466780-0 0014-4827 nnns volume:184 year:1989 number:1 pages:268-272 http://dx.doi.org/10.1016/0014-4827(89)90386-8 GBV_USEFLAG_H ZDB-1-SDJ GBV_NL_ARTICLE AR 184 1989 1 268-272 |
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(DE-627)NLEJ183674189 (DE-599)GBVNLZ183674189 DE-627 ger DE-627 rakwb eng Propulsive force of Paramecium as revealed by the video centrifuge microscope 1989 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Using the video centrifuge microscope we constructed, we observed the behavior of Paramecium cells in a solution of graded densities under centrifugal acceleration. Beyond 300g, they not only gather in the zone where the density is closest to theirs, but also orient themselves with their longitudinal axis parallel to the direction of centrifugation turning their anterior ends toward either centripetal or centrifugal direction. Since all of them retain still active swimming capacity, it is possible to calculate their propulsive force from the difference in density between theirs (1.04 g cm^-^3) and that of the upper or lower layer which they can reach. The propulsive force of single Paramecium cells thus obtained was calculated to be about 7 x 10^-^4 dyn. Elsevier Journal Backfiles on ScienceDirect 1907 - 2002 Kuroda, K. oth Kamiya, N. oth in Experimental Cell Research Amsterdam : Elsevier 184(1989), 1, Seite 268-272 (DE-627)NLEJ177031808 (DE-600)1466780-0 0014-4827 nnns volume:184 year:1989 number:1 pages:268-272 http://dx.doi.org/10.1016/0014-4827(89)90386-8 GBV_USEFLAG_H ZDB-1-SDJ GBV_NL_ARTICLE AR 184 1989 1 268-272 |
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(DE-627)NLEJ183674189 (DE-599)GBVNLZ183674189 DE-627 ger DE-627 rakwb eng Propulsive force of Paramecium as revealed by the video centrifuge microscope 1989 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Using the video centrifuge microscope we constructed, we observed the behavior of Paramecium cells in a solution of graded densities under centrifugal acceleration. Beyond 300g, they not only gather in the zone where the density is closest to theirs, but also orient themselves with their longitudinal axis parallel to the direction of centrifugation turning their anterior ends toward either centripetal or centrifugal direction. Since all of them retain still active swimming capacity, it is possible to calculate their propulsive force from the difference in density between theirs (1.04 g cm^-^3) and that of the upper or lower layer which they can reach. The propulsive force of single Paramecium cells thus obtained was calculated to be about 7 x 10^-^4 dyn. Elsevier Journal Backfiles on ScienceDirect 1907 - 2002 Kuroda, K. oth Kamiya, N. oth in Experimental Cell Research Amsterdam : Elsevier 184(1989), 1, Seite 268-272 (DE-627)NLEJ177031808 (DE-600)1466780-0 0014-4827 nnns volume:184 year:1989 number:1 pages:268-272 http://dx.doi.org/10.1016/0014-4827(89)90386-8 GBV_USEFLAG_H ZDB-1-SDJ GBV_NL_ARTICLE AR 184 1989 1 268-272 |
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(DE-627)NLEJ183674189 (DE-599)GBVNLZ183674189 DE-627 ger DE-627 rakwb eng Propulsive force of Paramecium as revealed by the video centrifuge microscope 1989 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Using the video centrifuge microscope we constructed, we observed the behavior of Paramecium cells in a solution of graded densities under centrifugal acceleration. Beyond 300g, they not only gather in the zone where the density is closest to theirs, but also orient themselves with their longitudinal axis parallel to the direction of centrifugation turning their anterior ends toward either centripetal or centrifugal direction. Since all of them retain still active swimming capacity, it is possible to calculate their propulsive force from the difference in density between theirs (1.04 g cm^-^3) and that of the upper or lower layer which they can reach. The propulsive force of single Paramecium cells thus obtained was calculated to be about 7 x 10^-^4 dyn. Elsevier Journal Backfiles on ScienceDirect 1907 - 2002 Kuroda, K. oth Kamiya, N. oth in Experimental Cell Research Amsterdam : Elsevier 184(1989), 1, Seite 268-272 (DE-627)NLEJ177031808 (DE-600)1466780-0 0014-4827 nnns volume:184 year:1989 number:1 pages:268-272 http://dx.doi.org/10.1016/0014-4827(89)90386-8 GBV_USEFLAG_H ZDB-1-SDJ GBV_NL_ARTICLE AR 184 1989 1 268-272 |
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(DE-627)NLEJ183674189 (DE-599)GBVNLZ183674189 DE-627 ger DE-627 rakwb eng Propulsive force of Paramecium as revealed by the video centrifuge microscope 1989 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Using the video centrifuge microscope we constructed, we observed the behavior of Paramecium cells in a solution of graded densities under centrifugal acceleration. Beyond 300g, they not only gather in the zone where the density is closest to theirs, but also orient themselves with their longitudinal axis parallel to the direction of centrifugation turning their anterior ends toward either centripetal or centrifugal direction. Since all of them retain still active swimming capacity, it is possible to calculate their propulsive force from the difference in density between theirs (1.04 g cm^-^3) and that of the upper or lower layer which they can reach. The propulsive force of single Paramecium cells thus obtained was calculated to be about 7 x 10^-^4 dyn. Elsevier Journal Backfiles on ScienceDirect 1907 - 2002 Kuroda, K. oth Kamiya, N. oth in Experimental Cell Research Amsterdam : Elsevier 184(1989), 1, Seite 268-272 (DE-627)NLEJ177031808 (DE-600)1466780-0 0014-4827 nnns volume:184 year:1989 number:1 pages:268-272 http://dx.doi.org/10.1016/0014-4827(89)90386-8 GBV_USEFLAG_H ZDB-1-SDJ GBV_NL_ARTICLE AR 184 1989 1 268-272 |
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Propulsive force of Paramecium as revealed by the video centrifuge microscope |
abstract |
Using the video centrifuge microscope we constructed, we observed the behavior of Paramecium cells in a solution of graded densities under centrifugal acceleration. Beyond 300g, they not only gather in the zone where the density is closest to theirs, but also orient themselves with their longitudinal axis parallel to the direction of centrifugation turning their anterior ends toward either centripetal or centrifugal direction. Since all of them retain still active swimming capacity, it is possible to calculate their propulsive force from the difference in density between theirs (1.04 g cm^-^3) and that of the upper or lower layer which they can reach. The propulsive force of single Paramecium cells thus obtained was calculated to be about 7 x 10^-^4 dyn. |
abstractGer |
Using the video centrifuge microscope we constructed, we observed the behavior of Paramecium cells in a solution of graded densities under centrifugal acceleration. Beyond 300g, they not only gather in the zone where the density is closest to theirs, but also orient themselves with their longitudinal axis parallel to the direction of centrifugation turning their anterior ends toward either centripetal or centrifugal direction. Since all of them retain still active swimming capacity, it is possible to calculate their propulsive force from the difference in density between theirs (1.04 g cm^-^3) and that of the upper or lower layer which they can reach. The propulsive force of single Paramecium cells thus obtained was calculated to be about 7 x 10^-^4 dyn. |
abstract_unstemmed |
Using the video centrifuge microscope we constructed, we observed the behavior of Paramecium cells in a solution of graded densities under centrifugal acceleration. Beyond 300g, they not only gather in the zone where the density is closest to theirs, but also orient themselves with their longitudinal axis parallel to the direction of centrifugation turning their anterior ends toward either centripetal or centrifugal direction. Since all of them retain still active swimming capacity, it is possible to calculate their propulsive force from the difference in density between theirs (1.04 g cm^-^3) and that of the upper or lower layer which they can reach. The propulsive force of single Paramecium cells thus obtained was calculated to be about 7 x 10^-^4 dyn. |
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