The Argument This paper explores the confrontation of physical and contextual factors involved in the emergence of the subject of color measurement, which stabilized in essentially its present form during the interwar period. The contentions surrounding the specialty had both a national and a disciplinary dimension. German dominance was curtailed by American and British contributions after Worl...

Vascular changes undoubtedly play a significant role in the pathogenesis of psoriasis. The present study concerns the local hemodynamics of psoriatic plaques measured by skin clearance of radioactive substances. This method gives a rough measure of local vascular dynamics (1—7), and, despite any shortcomings, probably supplies a more realistic picture than does use of colorimetry or plethysmogr...

5. Inorganic Polyphosphate Chemistry 4699 5.1. History 4699 5.2. Definition 4699 5.3. Formation 4699 5.4. Hydrolytic Degradation (Hydrolysis) 4699 5.5. Analytical Methods 4700 5.5.1. Chromatography 4700 5.5.2. Hydrolytic Degradation Assay 4700 5.5.3. Titration 4700 5.5.4. Colorimetry 4700 5.5.5. Solubility Fractionation 4700 5.5.6. Gel Electrophoresis 4700 5.5.7. P NMR 4700 5.5.8. Infrared 4700...