Results 331 to 340 of about 2,375,680 (397)

CORNEA AND ULTRAVIOLET RADIATION

Acta Ophthalmologica, 1980
The 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.
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Ultraviolet Radiation and Melanoma

Seminars in Cutaneous Medicine and Surgery, 2011
Melanoma is a particularly aggressive type of skin cancer, and its incidence has been increasing steadily since the 1970s. This article will review the extensive epidemiologic data demonstrating that ultraviolet radiation (UVR) exposure, from the sun or artificial tanning beds, is the most important environmental risk factor for melanoma; the multiple ...
Meg R. Gerstenblith, Holly E. Kanavy
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Effects of Ultraviolet Radiation

Annual Review of Physiology, 1946
Interest 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 (
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Ultraviolet radiation and immunosuppression

British Journal of Dermatology, 2009
Ultraviolet (UV) radiation is a complete carcinogen. The effects of UV radiation are mediated via direct damage to cellular DNA in the skin and suppression of image surveillance mechanisms. In the context of organ transplantation, addiction of drugs which suppress the immune system add greatly to the carcinogenicity of UV radiation.
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Ultraviolet Radiation and Cataract

Journal of Ocular Pharmacology and Therapeutics, 2000
While 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 ...
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X-Rays and Extreme Ultraviolet Radiation: Principles and Applications

, 2017
This self-contained, comprehensive book describes the fundamental properties of soft x-rays and extreme ultraviolet (EUV) radiation and discusses their applications in a wide variety of fields, including EUV lithography for semiconductor chip manufacture
D. Attwood
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Melanoma and ultraviolet radiation

Clinics in Dermatology, 1992
Abstract External ultraviolet radiation (UVR) is the major causative factor for human cutaneous melanoma. In this article the evidence supporting this statement and some of the implications are discussed.
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Ultraviolet Radiation and Pterygium

JAMA: The Journal of the American Medical Association, 1982
To the Editor.— Joseph F. Novak, MD, has concluded that work-related ultraviolet radiation exposure is unlikely to be a direct cause of recurrent pterygium in a welder (1981;246:1019). His observation that pterygia do not occur more frequently in welders than in other groups is compatible with the findings of Emmett et al.
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Ultraviolet radiation screening compounds

Biological Reviews, 1999
ABSTRACTAmongst the diversity of methods used by organisms to reduce damage caused by ultraviolet (UV) radiation, the synthesis of UV‐screening compounds is almost ubiquitous. UV‐screening compounds provide a passive method for the reduction of UV‐induced damage and they are widely distributed across the microbial, plant and animal kingdoms. They share
John Knowland, Charles S. Cockell
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ULTRAVIOLET RADIATION AND VISION

Archives of Ophthalmology, 1953
IN 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 ...
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