منابع مشابه
Diurnal variations in solar ultraviolet radiation at typical anatomical sites.
OBJECTIVE Solar ultraviolet (UV) radiation is an important environmental factor that affects human health. The understanding of diurnal variations of UV radiation at anatomical sites may be helpful in developing ways to protect humans from the harmful effects of UV radiation. METHODS In order to characterize the diurnal variations, the UV exposure values were measured at 30 min intervals by u...
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ژورنال
عنوان ژورنال: Nature
سال: 1946
ISSN: 0028-0836,1476-4687
DOI: 10.1038/158945a0