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Science 22 June 1973:
Vol. 180. no. 4092, pp. 1293 - 1295
DOI: 10.1126/science.180.4092.1293
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Articles

Dynamics of Number Fluctuations: Motile Microorganisms

Dale W. Schaefer 1

1 IBM T. J. Watson Research Center, Yorktown Heights, New York 10598

The time dependence of the intensity of light scattered from motile Escherichia coli bacteria is studied in population densities so low that the intensity autocorrelation function reflects fluctuations in the total number of particles in the scattering region. Measured correlation functions are analyzed by using a random walk model of bacterial motion.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)