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Related to UVB radiation: Ultraviolet B, UV radiation


the part of the electromagnetic spectrum with wavelengths shorter than light but longer than X-rays; in the range 0.4 × 10--6 and 1 × 10--8 metres
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005


Pertaining to ultraviolet radiation. Abbreviated UV.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.


(1) See ultraviolet light.

(2) A cloud-based storage locker for licensed content from the Digital Entertainment Content Ecosystem (see DECE). Under the Digital HD brand, purchases of Blu-ray discs with redeemable coupons and purchases of movies and TV shows (not rental) from participating online retailers entitles users to keep their content in the UltraViolet cloud and stream or download it as required.

Depending on the retailer's agreement, content might be sharable with friends and family, and parental access can be applied. A physical disc may also be obtainable. See Digital HD, Blu-ray Combo Pack and media locker.
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References in periodicals archive ?
Caption: Figure 2: The level of proinflammatory factors TNF[alpha] (a) and NF[kappa]B (b) in fibroblasts after exposure to UVA [20 J/[cm.sup.2]], UVB radiation [200 mJ/[cm.sup.2]], and rutin [25 [micro]M] treatment, expressed as a percentage of the control cells value.
It was indicated that UVB radiation greatly increased ROS production.
In this study, UVB radiation accelerated collagen degradation in NHDFs and hairless mice via activated collagenolytic MMP-1.
Most have been designed to protect against UVB radiation, and their level of protection is represented by the sun protection factor (SPF) (14, 15).
(20) Photoadaptive cutaneous hyperplasia, which impedes the penetration of UVB radiation, occurs with repeated exposure.
(8.) Westerhof W, Nieuweboer--Krobotova L: Treatment of vitiligo with UVB radiation vs topical psoralen plus UV-A.
(26) Epidermal melanin in dark-skinned persons filters twice as much UVB radiation as that in Caucasians.
The vast majority of sunburns are caused by ultraviolet B or UVB radiation. In moderation, this component of sunlight does the body good, giving a daily dose of vitamin D and perhaps improving mood.
Class I UV blocking lenses, offering the highest level of protection, block [greater than or equal to] 90% of UVA and [greater than or equal to] 99% of UVB radiation at their minimum thickness (usually taken as -3.00DS) as UV-blocking capability is a function of lens thickness where the UV-blocking monomer is co-polymerised with the lens material.
Sunglasses should block 99 to 100 percent of both UVA and UVB radiation and screen out 75 to 90 percent of visible light.
Sunburn, a leading risk factor to melanoma, is caused by exposure to the sun's UVA and UVB radiation. While summer time exposure is always a concern, protection during the winter months offered by the shade of tree leaves is lost and up to 80% of the sun's rays can be reflected by snow cover.