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The potential acidity associated with dews, frosts, and fogs


Book ID
123477598
Publisher
Elsevier Science
Year
1982
Weight
68 KB
Volume
29
Category
Article
ISSN
0198-0254

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Irradiation of skin by sunlight or ultraviolet B (UVB, 290-320 nm) brings about a downregulation of cell-mediated immunity. An action spectrum for photoimmune suppression in mice indicates that trans-urocanic acid absorbs UV photons and is isomerized to the cis-isomer in the stratum corneum. Cis-uro