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The residual current in orthophosphate medium
The residual current in orthophosphate medium exhibits as many as three waves in addition to the normal mercury dissolution wave. The first of these waves is diffusion controlled while the others areExpand
Absolute Isotopic Abundance and the Atomic Weight of a Reference Sample of Thallium.
The new mass spectrometric determination of the atomic weight of thallium has been completed and the 205Tl/2Tl absolute isotopic abundance ratio of the reference sample was found to be 2.38714 ± 0.00101. Expand
A Logic for Natural Language
  • W. C. Purdy
  • Computer Science, Mathematics
  • Notre Dame J. Formal Log.
  • 19 June 1991
A language called LN whose structure mirrors tilat of natural language, characterized by absence of variables and individual constants, is described, and each step of a proof in [,N has a direct counterpart in the surface language. Expand
The Biology of Polluted Water
In an orchard or meadow the authors usually find grasshoppers, mice, certain birds, and butterflies; if a hunter returns from his trip with game bag filled chiefly with ducks or other waterfowl they certainly know that his field of operations has been the marshes or streams rather than the hardwood forest. Expand
The determination of zinc in blood plasma by atomic absorption spectrometry.
Atomic absorption spectrometry has been used in the analysis of plasma zinc because of its sensitivity and simplicity and should be useful in the clinical laboratory. Expand
The mechanism of the electrochemical oxidation of thiourea
Abstract Cyclic voltammetry and potentiostatic coulometry were used to study the electrochemical oxidation of thiourea in aqueous solutions of nitric acid, nitric acid—ammonium nitrate, and ammoniumExpand