Ultra-violet Radiations and Antirachitic Substances

A Further Report on Imparting Antirachitic Properties to Inert Substances by Ultra- Violet Irradiation

In a series of communications (1) we have reported experiments which show that antirachitic properties can be imparted to various inert fluids by means of ultra-violet irradiations. In the first report, presented in June, it was recorded that this held true for vegetable oils, such as cottonseed oil. Subsequent to irradiation 0.1 cc. of this oil was sufficient to protect young rats which had be...

Some Common Conditions Treated by Ultra-Violet Radiations

In this paper I have chosen some diseases and conditions which can be greatly benefited by the use of ultra-violet light. In writing these notes I have dealt with each subject from three points of view, viz : (1) the rationale of the use of the ultra-violet rays; (2) the available authoritative literature on the subject; and (3) the technique in detail. The following ten conditions will now be ...

Genetics: Stadler and Sprague Genetic Effects of Ultra-violet Radiation in Maize. H. Filtered Radiations

ULTRA-VIOLET RADIATIONS IN CONDITIONS OF EXTREhlE CALCIUM AND PHOSPHORUS DEFIClENCY

Definite research for the causative factors in the nutritional disturbance known as rickets was begun by various observations as to its distribution and occurrence. In 1890 T. A. Palm (1) showed by a geographical survey that lack of sunlight seemed to be one of the chief factors in the causation of rickets. This led to the use of the sun bath in the treatment of rachitic children. In 1914 Rolli...

Ultra-violet absorption cross sections

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...