Results 161 to 170 of about 5,989 (205)
Some of the next articles are maybe not open access.
Effects of Ultraviolet Radiation
Annual Review of Physiology, 1946Interest in obtaining a better understanding of biological effects of ultraviolet radiation has been stimulated to a great extent dur ing the last few years by the wide application that ultraviolet has found as a therapeutic agent (1) in genetics (120), in the study of the fundamental structure of living cells (23), and in its wide use in aerobiology (
openaire +2 more sources
CORNEA AND ULTRAVIOLET RADIATION
Acta Ophthalmologica, 1980The absorption of ultraviolet radiation in the cornea of rabbit, cat, guinea pig, and rat has been studied. It turned out that about 80% of incident radiation is absorbed at the 290 nm wavelength limit in rabbit and cat, whereas the absorption is considerably lower in guinea pig and rat.
openaire +2 more sources
Contact Dermatitis, 1980
At 51 departments where work is being done in ultraviolet radiation for sterilization purpose (sterilamps). the light intensity was measured at 254 nm and at 300–400nm. A limit of 0.25 μW/cm2 at 254 nm has been set. In several of the workplaces this limit was exceeded without any decrease in the number of colony forming units, according to the 940 ...
openaire +2 more sources
At 51 departments where work is being done in ultraviolet radiation for sterilization purpose (sterilamps). the light intensity was measured at 254 nm and at 300–400nm. A limit of 0.25 μW/cm2 at 254 nm has been set. In several of the workplaces this limit was exceeded without any decrease in the number of colony forming units, according to the 940 ...
openaire +2 more sources
Ultraviolet Radiation and Cataract
Journal of Ocular Pharmacology and Therapeutics, 2000While solar radiation falling on earth comprises light in the infrared, visible, UVA, UVB, and even UVC ranges, the light incident on, and thus important to the biology of, the eye lens is essentially in the visible and UVA regions. Thus, direct photochemical damage to the lens from UVB radiation is minor, though long-term UVA (and even visible range ...
openaire +2 more sources
American Journal of Diseases of Children, 1927
A great variety of methods has been suggested for the assay of solar radiations of wave lengths less than 320 millimicrons. Webster, Hill and Eidinow 1 have used the rate of bleaching of a standard acetone methylene blue solution exposed in a quartz tube. The bleaching 2 of this solution has been standardized against the lethal dose for Infusoria under
C. H. BEST, J. H. RIDOUT
openaire +1 more source
A great variety of methods has been suggested for the assay of solar radiations of wave lengths less than 320 millimicrons. Webster, Hill and Eidinow 1 have used the rate of bleaching of a standard acetone methylene blue solution exposed in a quartz tube. The bleaching 2 of this solution has been standardized against the lethal dose for Infusoria under
C. H. BEST, J. H. RIDOUT
openaire +1 more source
Ultraviolet Radiation and Exobiology
2001In comparison to the Earth, extraterrestrial environments possess quite different UV radiation regimes, both in terms of absolute flux and in terms of spectral quality (Horneck et al. 1984; Horneck 1993). For example, the moon has no atmosphere and thus its UV regimen is determined solely by the extraterrestrial spectrum.
openaire +2 more sources
ULTRAVIOLET RADIATION AND VISION
Archives of Ophthalmology, 1953IN THIS review, ultraviolet radiation refers to the spectral region from approximately 300 to 400 mμ; in other words, the near ultraviolet rays. In many textbooks the visible spectrum is said to end at 400 mμ, and the ICI (International Commission on Illumination) luminosity curve does not extend beyond 380mμ, but shorter wave lengths than this have ...
openaire +2 more sources
2017
Ultraviolet (UV) radiation is the principal cause of over 95% of keratinocyte cancers (basal cell carcinomas and squamous cell carcinomas of the skin), the most common cancers in white populations worldwide. UV radiation also causes an estimated 60%–90% of cutaneous melanoma, the cancer affecting the skin’s pigment-producing cells.
Green, Adèle C., Whiteman, David C.
openaire +4 more sources
Ultraviolet (UV) radiation is the principal cause of over 95% of keratinocyte cancers (basal cell carcinomas and squamous cell carcinomas of the skin), the most common cancers in white populations worldwide. UV radiation also causes an estimated 60%–90% of cutaneous melanoma, the cancer affecting the skin’s pigment-producing cells.
Green, Adèle C., Whiteman, David C.
openaire +4 more sources
Inflammatory Molecules Associated with Ultraviolet Radiation-Mediated Skin Aging
International Journal of Molecular Sciences, 2021Tuba Ansary, Mamitaro Ohtsuki
exaly
Global evidence for ultraviolet radiation decreasing COVID-19 growth rates
Proceedings of the National Academy of Sciences of the United States of America, 2021Kyle Meng +2 more
exaly