Simultaneous Irradiation with Different Wavelengths of Ultraviolet Light has Synergistic Bactericidal Effect on Vibrio parahaemolyticus. PHOTOCHEM PHOTOBIOL. 2014; 90(6):1397-1403Mutsumi, NakahashiKazuaki, MawatariAkiko, HirataMiki, MaetaniTakaaki, ShimohataTakashi, UebansoYasuhiro, HamadaMasatake, Akutagawa...
The ultraviolet component of sunlight is the major cause of skin cancer and is responsible for accelerating the aging of human skin. It is therefore important to determine the mechanisms by which ultraviolet light alters normal cellular functions. The potential importance of ultraviolet light-induced ...
UltaViolet Light:Ultraviolet light is a part of the electromagnetic spectrum. Ultraviolet rays have frequencies greater than the frequency of visible light but lower than the frequency of X-rays. The wavelength of ultraviolet light is shorter than visible light and longer than that of X-rays. O...
In a new video, NASA shows how recent flare events on February 21st and 22nd appeared in several wavelengths of extreme ultraviolet light. Throughout the video, viewers are treated to blends of 131 and 171, 171 and 304, and 171 and 1,600-angstrom-light images. An angstrom, named for Swe...
(long and short wavelengths of ultraviolet light). health.herbalife.co.in 紫外線可分為UV- A和UV - B輻射(長波和短波的紫外線)。 health.herbalife.com.hk [...] Telescope derived from its combination of extremely sharp images, covering relatively wide angular fields in the sky, with a dee...
When ultraviolet light strikes certain materials, it causes them to fluoresce—i.e., they emit electromagnetic radiation of lower energy, such as visible light. The spectrum of fluorescent light is characteristic of a material’s composition and thus can be used for screening minerals, detecting ...
of the total radiation received at the surface of Earth. Althoughultravioletlight constitutes only a very small proportion of the total radiation, this component is extremely important. It producesvitamin Dthrough the activation of ergosterol. Unfortunately, the polluted atmosphere over large cities rob...
Wavelengths of Light and ColorsVisible light has wavelengths between roughly 400 nm and 750 nm; there is also infrared light with longer wavelengths and ultraviolet light with shorter wavelengths. As such wavelengths are rather small, light exhibits much weaker diffraction effects than sound waves, ...
Among the hues these neurons respond to are those that people would perceive as violet and others that correspond to ultraviolet wavelengths (not detectable by humans). Detecting UV hues is important for the survival of some creatures, such as bees and perhaps fruit flies; many plants, for exam...
During this time, fourgroups of 12 animals each, half of which were bilaterally orbitallyenucleated, were exposed to either ultraviolet lights, cool greenlights, Vita-Lite (full spectrum) lamps, or kept in complete darknessin specially constructed environmental boxes. On the first and last dayof ...