Pollards Test

Pollard s Test for Stability of Propellants. This test, proposed in 1924—25, is based upon the action of nitric peroxide on colloidal Ag oxide Procedure. A current of air is passed over a sample of proplnt in storage into a colloidal soln of Ag oxide. If free nitrogen peroxide is present, it reacts with the colloid and decreases the amt of light diffused by it. The larger the decrease, the higher the amt of N02 present, and the more decompd is the proplnt Ref Reilly (1938), 80... 

Note also that we can use the correlation test statistic (described in the correlation coefficient section) to determine if the regression is significant (and, therefore, valid at a defined level of certainty. A more specific test for significance would be the linear regression analysis of variance (Pollard, 1977). To so we start by developing the appropriate ANOVA table. 

Brooks, T.M. Dean, B.J. (1981) Mutagenic activity of 42 coded compounds in the Salmo-we/Za/microsome assay with preincubation (Pollards Wood Research Station). In de Serres, F.J. Ashby, J., eds, Progress in Mutation Research, Vol. 1, Evaluation of Short-Term Tests for Carcinogens. Report of the International Collaborative Program, Amsterdam, Elsevier/ North-Holland, pp. 261-270... 

Pollard, Uhr, and Stern (1965) noted that psychotic disorders are characterized "by personality disintegration and failure to test and evaluate correctly external reality in various spheres." Following the conclusion of their work with LSD, they stated, "In none of the normal experimental subjects to whom we have given these drugs, nor in our own experience, could these criteria be satisfied."... 

Hepatic Effects. DNOC is a yellow compound that stains human (Hunter 1950) and animal (Ambrose 1942) skin on contact. Absorption of DNOC by any route and subsequent distribution to tissues results in a characteristic yellow staining of visceral organs and tissues including the conjunctiva and sclera of the eye (Ibrahim et al. 1934 Pollard and Filbee 1951), blood serum, skeletal tissue, and urine (Ambrose 1942). The yellow staining of the skin and sclera of patients exposed to DNOC prompted physicians to test for liver effects. Results for the index index and the Van den Bergh tests have been consistently negative (Dodds and Robertson 1933 Gordon and Wallfield 1935 Plotz 1936). 

Poll74 John M. Pollard Theorems on factorization and primality testing Proceedings of the Cambridge Philosophical Society 76 (1974) 521-528. 

Thanks are also due to Dr. Klaus Tomantschger from Battery Technologies, Inc., 2480 Dunwin Dr., Mississauga, Ontario, and to Dr. Josef Daniel-Ivad from Environmental Battery Systems, 30 Pollard Str., Richmond Hill, Ont., Canada, LAB 1C3, for supplying recent technical test results. 

Pollard, K. S., and van der Laan, M. J. (2005). Resampling-based multiple testing with asymptotic strong control of type I error. Preprint, Division of Biostatistics, University of California, Berkeley, CA. 

POLLARD, G. J. (1979) Fluid Loadings on Mixing Equipment. Introduction. Part 1. The Design of the Test Facility. BHRA Report RR 1567, September. 

There are a variety of plate-based electrophysiology systems available to test for effects of drugs on cardiac ion channels overexpressed in ceU lines. Conductance block data (i.e., the molar concentration of a drug producing 50% inhibition of an ionic current (IC )) that are derived from these systems have enabled assessment of the key molecules responsible for the cardiac AP as a means of early cardiac safety assessment (Pollard et al., 2010). The questions therefore become (i) What can be done to integrate these multiple experimental IC measurements (ii) How can ICj ... 

Pollard and Edwards (1977) did work to determine the permissible limits of lead and tin in the ZA-12 alloys. Borbe et al. (1978) claimed that 12 ppm N2 in 10% or 22% aluminum alloys improved both stain resistance and acid resistance at room temperature. Recent work by Noranda (personal communication) on ZA-27 alloys with excess lead (0.0105%), tin (0.011%), or cadmium (0.008%) subjected to a steam test (95°C, 95% humidity) for up to 100 days indicated that the bulk of the corrosion was in the zinc-rich phase. 

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