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A Biological Assay of Tuberculins [PDF]

open access: yesBiometrics, 1949
A FEW YEARS AGO it was decided to carry out under the authority ^ of the Agricultural Research Council a specific test, using bovine subjects, of the relative potency of two tuberculin preparations, which may be designated as Standard and Weybridge respectively.
R. A. Fisher
openaire   +4 more sources

Mathematics of Biological Assay [PDF]

open access: yesNature, 1944
IF in a biological assay the mean responses, y11, y12, of two groups of n animals to doses of a standard preparation the logarithms of which are x11, x12, are compared with the mean responses, y21, y22 to doses of the preparation under test the logarithms of which are x21, x22, it is often possible to express the relationship between dosage and ...
D. J. Finney
semanticscholar   +6 more sources

Biological Assay of Insecticide Residues [PDF]

open access: greenAnnual Review of Entomology, 1959
Uploaded by Plazi for TaxoDros. We do not have abstracts.
Sumio Nagasawa
openaire   +3 more sources

Assessment concordance and predictive validity of self-report and biological assay of cocaine use in treatment trials. [PDF]

open access: yesAm J Addict, 2014
BACKGROUND AND OBJECTIVES Cocaine use during randomized clinical trials (RCTs) is typically assessed by participant self-report or biological assay (eg, urinalysis).
Decker SE   +5 more
europepmc   +2 more sources

On the calculation of the error of biological assays [PDF]

open access: bronzeJournal of Hygiene, 1943
It is now realized by a number of workers that the formula which it has been customary to use hitherto for calculating the limits of error of the dose corresponding to a given response (e.g. the median effective dose) or of the result of a biological assay is only approximate.
J. O. Irwin
openaire   +5 more sources

HPTLC assay of nicotine and cotinine in biological samples [PDF]

open access: yesJournal of Mind and Medical Sciences, 2018
This study presents the development of a simple high-performance thin layer chromatography (HPTLC) method for the determination of nicotine and its metabolite cotinine in human plasma and urine. The following mobile phases: methanol: ammonia (100:1.5, v:
Ana Maria Vlasceanu   +6 more
doaj   +3 more sources

The Biological Assay of Streptomycin by a Modified Cylinder Plate Method

open access: bronze, 1948
SUMMARY: The use of plate glass sheets carrying twenty-four cylinders in place of Petri dishes for the biological assay of streptomycin by the cylinder-plate method initially led to large assay errors.
K. A. Brownlee   +6 more
openalex   +2 more sources

BALANCED INCOMPLETE BLOCK DESIGNS IN BIOLOGICAL ASSAY ILLUSTRATED BY THE ASSAY OF GASTRIN USING A YOUDEN SQUARE [PDF]

open access: bronzeBritish Journal of Pharmacology and Chemotherapy, 1963
General equations are given for computing the results of any (j+j) dose parallel line biological assay based on an incomplete block design. Only the information from comparisons within blocks is used.
David Colquhoun
openalex   +2 more sources

Biological Assay of Inorganic Manganese for Chicks [PDF]

open access: hybrid, 1970
MANY inorganic forms of manganese are available for use as supplements in poultry feeds. A suitable assay for biological availability of the element, however, is not available, and little is known of the relative utilization of the various supplemental ...
L. T. Watson   +3 more
openalex   +2 more sources

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