Results 271 to 280 of about 726,175 (291)
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UV-B photoreceptor-mediated signalling in plants
Trends in Plant Science, 2012Ultraviolet-B radiation (UV-B) is a key environmental signal that is specifically perceived by plants to promote UV acclimation and survival in sunlight. Whereas the plant photoreceptors for visible light are rather well characterised, the UV-B photoreceptor UVR8 was only recently described at the molecular level.
Heijde, Marc, Ulm, Roman
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Archives of Dermatology, 1997
IN THE United States, UV-B phototherapy is probably the most frequently used treatment for moderate to severe psoriasis. In the 1970s and early 1980s, a number of important studies increased our understanding of how best to use UV-B light to treat psoriasis.
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IN THE United States, UV-B phototherapy is probably the most frequently used treatment for moderate to severe psoriasis. In the 1970s and early 1980s, a number of important studies increased our understanding of how best to use UV-B light to treat psoriasis.
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UV-B Radiation and Photoimmunology
1994Irradiation with ultraviolet-B (UV-B, 280–320 nm) initiates a selective immunosuppression which results in a down regulation of cell-mediated immunity. This form of immune suppression may be a fundamental regulatory mechanism, controlling the interaction between mammals and potentially deleterious environmental radiation.
Frances P. Noonan, Edward C. DeFabo
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UV-B phototherapy. An overview.
Archives of dermatology, 1984The medical uses of nonionizing electromagnetic radiation have changed over time with light source technology and research in photobiology. Multiple UV light phototherapy protocols have been developed. A discussion of the relative importance of light sources with respect to the action spectrum for psoriasis phototherapy, as well as the need for tar and
T F, Anderson +2 more
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UV-B Radiation and the Photosynthetic Process
1994Continuing decreases in stratospheric ozone have been documented and it is postulated that this may result in a greater proportion of shortwave ultraviolet radiation (UV-B, 290–320 nm) reaching the earth’s surface. The on-going enlargement of the hole in the ozone in the Antarctic is a particular cause for concern, since the geographical region over ...
Sundby-Emanuelsson, C +3 more
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[UV-B phototherapy in psoriasis].
Zeitschrift fur Hautkrankheiten, 198367 patients, 41 with chronic plaque-psoriasis and 26 with acute eruptive or seborrhoic psoriasis, were treated in a stand-up unit equipped with UV-B fluorescent bulbs. 92 per cent of the latter group of patients showed satisfactory results (13 exposures, total UV-B dose: 464 mJ/cm2), whereas only 46 per cent of the patients with plaque psoriasis ...
W, Brenner, E, Jaschke, H, Hönigsmann
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CONTROL OF PLANT MORPHOLOGY BY UV-B AND UV-B-TEMPERATURE INTERACTIONS
Acta Horticulturae, 2012S. Torre +6 more
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