In the preparation of the material and the interpretation of the results, I have had the cooperation of Dr. Mary B. Stark of the Flower Hospital Staff and the assistance of Miss A. K. Marshall of the Bell Telephone Laboratories. The photographs which accompany this paper are sufficiently described in the titles and need not be specifically dealt with here. 1 Lucas, "An Introduction to Ultra-Vio...

In this research paper a novel Ultra Violet Photo Catalyst Oxidation (UVPCO) sensor for air and surface sanitization using Common Source (CS) amplifier is presented. The ultra violet photo catalysis is the process in which the highly reactive radicals like H+, OH-and peroxides ions are produced from air in the presence of the ultra violet radiation and photo catalyst. In this process, the free ...

Determination of the absorption spectra of pure preparations of Northrop's crystalline pepsin inactivated by irradiation with ultra-violet light shows that the total absorption in the ultra-violet region of the spectrum increases with the degree of inactivation. This increase is especially marked between 2400 and 2750 A.u. The rate of photoinactivation is shown to be sensitive to changes in pH,...

Ultra-violet absorption cross sections of isotopically substituted nitrous oxide species: NNO, NNO, NNO and NNO P. von Hessberg, J. Kaiser , M. B. Enghoff, C. A. McLinden, S. L. Sorensen, T. Röckmann, and M. S. Johnson Department of Chemistry, University of Copenhagen, Copenhagen, Denmark Max-Planck Institute for Nuclear Physics, Atmospheric Physics Division, Heidelberg, Germany now at: Departm...

We establish the ultraviolet finiteness of various classes of noncommutative gauge theories.

Sterilization of air by ultra-violet radiation is effective when the organisms are dispersed in droplet nuclei, the smallest particles being the most vulnerable (Wells & Wells, 1936; Bourdillon & Lidwell, 1948). Airborne bacteria, however, are also carried on dust particles shaken from textiles or swept from the floor, and against these ultra-violet radiation at intensities higher than those no...

The diffuse far-ultraviolet (FUV) background has received considerable attention from astronomers since the 1970's. initial impetus came hope of detecting UV radiation hot intergalactic medium. central importance FUV to physics (heating and ionization) atomic phases motivated next generation experiments. consensus view is that emission at high latitudes three components: stellar reflected by du...