VIRUS PARTICLE COUNTS WITH THE NEGATIVE STAINING-SPRAY DROPLET TECHNIQUE.
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Biomedical subjects
Publications and source records attributed to G L MILLER.
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1. Procedures have been developed for studying quantitatively the response of the male American cockroach to the odorous attractant of the female. 2. The percentage of male roaches responding to extracts of the attractant of the female has been found to vary with the log of the concentration of the attractant throughout a wide range. 3. Adaptation to the olfactory stimulus has been demonstrated. 4. A theory of adaptation is offered.
A method has been developed for the assay of the odorous attractant of the cockroach, P. americana. The method, called the counterpoint test, employs two matched groups of roaches and provides for a simultaneous titration of standard and unknown. It has a statistical error of +/-40 per cent at a level of significance of 95 per cent.
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