ultraviolet

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Related to UVA radiation: UV A
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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 addition, they may be useful in photoprotector photostability and may potentially neutralize free radicals induced by UVA radiation [15].
Equally misleading are the labels on so-called "broad-spectrum" sunscreens that claim to block carcinogenic UVA radiation in addition to sunburn-causing UVB.
The compensatory response to CAT inhibition we observed in this study suggests that AMT might have potential value in modulating the effect of oxidative stress induced by various environmental factors, such as UVA radiation, when acting on skin cells.
Table 3 Comparison of efficacy of group A (UVA radiation) and group B (UVB radiation).
It was found that windshield filtering properties fell into one of two distinct groups: those windshields which effectively blocked UVA radiation up to 400nm; and those which effectively blocked up to around 350nm but transmitted UVA radiation between 350-400nm.
LibRadtran version 1.6-beta and its uvspec model were used for the calculations of clear-sky daily UVB and UVA radiation doses.
The ultraviolet radiation spectrum is divided into UVA radiation (315-400 nm), UVB radiation (270-315 nm), and UVC radiation (100-280 nm).
According to the proposed rule, some research has found that "doses of UVA radiation emitted by high-power sunlamp products may be up to 10-15 times higher than that of the midday sun, resulting in an intense amount of exposure that does not exist in nature."
He added: "A high UVA protection star rating is important because UVA radiation makes up most of our natural sunlight, and is linked to skin cancer and ageing - and we'd like to see more sunscreens offer at least four-star UVA protection.
Since the intensity of incoming UVA radiation does not follow a spatial trend, the observed spatial variability may be associated with atmospheric changes, such as decreased cloud cover (promoting increased UVA) or air pollution events (dust storms, wildfires), that promote the scattering of solar radiation by particles (and thus reduced UVA exposures).
For almost a century the prevailing public health message when it comes to sunshine is it is bad, with UVA radiation penetrating your skin and creating DNA-damaging badness, while UVB will burn you, more directly messing your genetic material and promoting skin cancer.
For almost a century the prevailing public health message when it comes to sunshine is that it is bad, with UVA radiation penetrating your skin and creating DNA-damaging badness, while UVB will burn you, more directly messing your genetic material and promoting skin cancer.
These rays both penetrate the skin; however, UVA radiation enters the skin more deeply than UVB radiation, causing significant damage to the epidermis.
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.