Source:http://linkedlifedata.com/resource/pubmed/id/20365957
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
19
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pubmed:dateCreated |
2010-4-6
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pubmed:abstractText |
In contexts such as suspension feeding in marine ecologies there is an interplay between brownian motion of nonmotile particles and their advection by flows from swimming microorganisms. As a laboratory realization, we study passive tracers in suspensions of eukaryotic swimmers, the alga Chlamydomonas reinhardtii. While the cells behave ballistically over short intervals, the tracers behave diffusively, with a time-dependent but self-similar probability distribution function of displacements consisting of a gaussian core and robust exponential tails. We emphasize the role of flagellar beating in creating oscillatory flows that exceed brownian motion far from each swimmer.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Nov
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pubmed:issn |
1079-7114
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pubmed:author | |
pubmed:issnType |
Electronic
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pubmed:day |
6
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pubmed:volume |
103
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
198103
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pubmed:meshHeading | |
pubmed:year |
2009
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pubmed:articleTitle |
Dynamics of enhanced tracer diffusion in suspensions of swimming eukaryotic microorganisms.
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pubmed:affiliation |
Department of Applied Mathematics and Theoretical Physics, University of Cambridge, Wilberforce Road, Cambridge CB3 0WA, United Kingdom.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, Non-P.H.S.,
Research Support, Non-U.S. Gov't
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