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  • 1
    Electronic Resource
    Electronic Resource
    A belt of moonlets in Saturn’s A ring (2007)
    [s.l.] : Nature Publishing Group
    Nature 449 (2007), S. 1019-1021 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The origin and evolution of planetary rings is one of the prominent unsolved problems of planetary sciences, with direct implications for planet-forming processes in pre-planetary disks. The recent detection of four propeller-shaped features in Saturn’s A ring proved the presence of ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/nature06224
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  • 2
    Electronic Resource
    Electronic Resource
    Planetary science Saturn's bared mini-moons (2006)
    [s.l.] : Nature Publishing Group
    Nature 440 (2006), S. 614-615 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The question of where Saturn's magnificent system of rings came from has intrigued planetary scientists for centuries. A currently favoured thesis is that the flat disk of the main rings, which girdle the planet's equator, originated in the dispersion of material from the disruption of an icy ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/440614a
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  • 3
    Electronic Resource
    Electronic Resource
    Attachment of Trypanosoma cruzi Epimastigotes to Hydrophobic Substrates and Use of this Property to Separate Stages and Promote Metacyclogenesis (1998)
    Oxford, UK : Blackwell Publishing Ltd
    The @journal of eukaryotic microbiology 45 (1998), S. 0 
    Details
    ISSN: 1550-7408
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: In vivo, epimastigotes of Trypanosoma cruzi colonize a lipidic superficial layer of the rectal cuticle of the vector Triatoma infestans. In vitro, epimastigotes of four cultured strains and one strain from reduviids use a terminal area of the flagellum to attach to a variety of artificial hydrophobic substances, such as hydrocarbons and a range of synthetic plastics. Trypomastigotes did not attach to these substrates. Hydrophilic molecules, such as neutral or negatively charged polysaccharides. did not facilitate binding. Epimastigotes and trypomastigotes were artificially bound by electrostatic forces to positively charged chitosan or DEAE-Sephacel over their entire surface. Tween 20 and lipid-binding serum albumin effectively inhibited the hydrophobic attachment. Based on this hydrophobic interaction of epimastigotes. a new chromatography technique has been devised to gently separate trypomastigotes from epimastigotes using octacosane-coated beads. Furthermore, the in vitro transformation of epimastigotes to trypomastigotes was enhanced if epimastigotes were permitted to attach to hydrophobic, wax-coated culture vessels.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1550-7408.1998.tb05115.x
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