ultraviolet

(redirected from UVB radiation)
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Related to UVB radiation: Ultraviolet B, UV radiation
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Synonyms for ultraviolet

having or employing wavelengths shorter than light but longer than X-rays

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References in periodicals archive ?
In Finland and in other countries far from the equator, UVB radiation from the sun is a sufficient source of vitamin D during the summer months, but outside the summer season, people need to make sure that they get sufficient vitamin D from food or from vitamin D supplements.
60) Two years later, a second group of researchers found that the licorice constituent glycyrrhizin "might offer protection from the damage induced in humans by UVB radiation.
To explore the effect of UVB radiation on HaCaT cells, the 40 mJ/cm [sup]2 and 80 mJ/cm [sup]2 doses of UVB were chosen to treat HaCaT cells.
Histological staining with Masson-trichrome for dermal collagen fibers showed that chronic UVB radiation damaged cellular collagen density in the dermis (Fig.
Lower ozone values can cause some overestimation of UVB radiation, but as the main factors influencing UV (SZA and cloudiness) have a much larger influence and variation, this difference is not decisive, especially considering that day-to-day variations of ozone can also be larger.
UVA radiation is more abundant in sunlight and can penetrate deeper into the skin compared to UVB radiation.
While UVB radiation initiates vitamin D production in the skin, UVA triggers NO synthesis.
Whilst the SPF rating measures the level of preventing sunburn from UVB radiation and the upper limit is 50+, the PA rating measures not only the level sunburn prevention from UVA radiation but also the level of preventing wrinkles and sag.
Ozone absorbs UVB radiation, so holes in the ozone layer could be a pollution problem that winds up enhancing vitamin D levels.
90, which means that the production has proved to be a comparable protection against both UVA and UVB radiation.
The damaging effects of UVB radiation (290-320 nm) exposure are well recognized and include carcinogenesis (5-8), genetic mutations (7, 8), photoaging (6, 7, 9), immunosupression (6, 7, 10) and ocular cataracts (11).
Varied doses of UVB radiation were administered to budgerigars by altering exposure time and irradiance.
Solaria emit UVA and UVB radiation, which are both known causes of skin cancer.
3) During recent times narrow band UVB phototherapy is being increasingly used for this disorder since the shorter wavelengths of UVB radiation have higher energy and are mostly responsible for the development of erythema, less erythema is induced following exposure to 311nm UVB source (narrow band UVB) while treatment response remains high.
9 percent of UVA and UVB radiation thanks to its polycarbonate lens.