Journal ArticleDOI
The Biologic Effects of Ultraviolet Radiation
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This article is published in Photochemistry and Photobiology.The article was published on 1970-05-01. It has received 134 citations till now.read more
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Journal ArticleDOI
Influence of season and latitude on the cutaneous synthesis of vitamin D3: exposure to winter sunlight in Boston and Edmonton will not promote vitamin D3 synthesis in human skin.
TL;DR: The dramatic influence of changes in solar UVB radiation on cutaneous vitamin D3 synthesis is quantified and the latitudinal increase in the length of the "vitamin D winter" during which dietary supplementation of the vitamin may be advisable is indicated.
Journal ArticleDOI
Factors that influence the cutaneous synthesis and dietary sources of vitamin D.
Tai C. Chen,Farhad Nasrollahi Chimeh,Zhiren Lu,Jeffrey Mathieu,Kelly S. Person,Anqi Zhang,Nathan Kohn,Stephen Martinello,Roger Berkowitz,Michael F. Holick +9 more
TL;DR: The results provide useful global guidelines for obtaining sufficient vitamin D3 by cutaneous synthesis and from dietary intake to prevent vitamin D deficiency and its health consequences, ensuing illness, especially, bone fractures in the elderly.
Journal ArticleDOI
Indication of Increasing Solar Ultraviolet-B Radiation Flux in Alpine Regions
Mario Blumthaler,Walter Ambach +1 more
TL;DR: Measurements at the Jungfraujoch High Mountain Station indicate that there has been a slight increase of about 1 percent per year in the flux of solar ultraviolet-B radiation since 1981.
Journal ArticleDOI
Molecular mechanisms of ultraviolet radiation carcinogenesis
TL;DR: The finding that activation of ras oncogenes in benign and self-regressing keratoacanthomas in both humans and in animals indicates that they play a role in the early stages of carcinogenesis, and the role of tumor suppressor genes in UV carcinogenesis is unknown.
Journal ArticleDOI
Increase in solar UV radiation with altitude
TL;DR: In this article, broad-band measurements have been made at Jungfraujoch, Switzerland (3576 m above sea-level) and Innsbruck, Austria (577 m a.s.l.), where daily totals of erythernal effective irradiance, UVA irradiance and total irradiance have been compared.