Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1971-7-20
pubmed:abstractText
The theoretical basis of laser scattering from motile microorganisms is examined. Spectra of swimming particles are compared with spectra arising from brownian motion. For mixtures of motile and resting organisms, that part of the spectrum related to the motile organisms is enhanced when V(s)/|k|D is large, where V(s) is the mean swimming speed of the motile microorganisms,|k| is the Bragg wave vector, and D is the diffusion coefficient of the nonmotile particles. When the directed motion of swimming microorganisms persists for periods which are much longer than tau = (|k|V(s))(-1), the scattering spectrum is given as S(k, omega) infinity P(| [omega - omega(0)]/k|), where P is the probability distribution obtained by two-dimensional integration over the swimming speed distribution. A computation of scattering from bull spermatozoa, based on published velocity distributions, is investigated in detail.
pubmed:commentsCorrections
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0006-3495
pubmed:author
pubmed:issnType
Print
pubmed:volume
11
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
341-54
pubmed:dateRevised
2009-11-18
pubmed:meshHeading
pubmed:year
1971
pubmed:articleTitle
Spectral analysis of laser light scattered from motile microorganisms.
pubmed:publicationType
Journal Article