J
J. O. Irwin
Researcher at University of London
Publications - 7
Citations - 3531
J. O. Irwin is an academic researcher from University of London. The author has contributed to research in topics: Vaccination & Survival rate. The author has an hindex of 6, co-authored 7 publications receiving 3371 citations.
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Journal ArticleDOI
The estimation of the bactericidal power of the blood.
TL;DR: The survival rate, p, of a measured inoculum of Staph.
Journal ArticleDOI
On an approximate method of determining the median effective dose and its error, in the case of a quantal response.
J. O. Irwin,E. A. Cheeseman +1 more
TL;DR: Käber's method is, for many purposes, a sufficiently accurate way of determining the median effective dose, when the authors have a series of doses increasing in a constant ratio and a small number of animals on each.
Journal ArticleDOI
Distribution of coliform organisms in milk and the accuracy of the presumptive coliform test.
H. Barkworth,J. O. Irwin +1 more
TL;DR: With the exception of three slightly anomalous results, the data are consistent with the hypothesis that the chance of a tube remaining sterile is constant for all tubes inoculated from the same sample of milk at any one dilution.
Journal ArticleDOI
The intracerebral mouse-protection test for pertussis vaccines.
J. O. Irwin,A. F. B. Standfast +1 more
Journal ArticleDOI
The carcinogenic activity of some petroleum fractions and extracts: Comparative results in tests on mice repeated after an interval of eighteen months.
D. L. Woodhouse,J. O. Irwin +1 more
TL;DR: Woodhouse's experiments on the carcinogenicity of ten different fractions for the skin of mice have been analysed statistically and it is shown that the apparent carcinogenicicity was greater in the 2nd series of experiments.