Sentences with phrase «ultraviolet exposure»

The phrase "ultraviolet exposure" refers to being exposed to the harmful rays of the sun, which we cannot see with our eyes. These rays can cause damage to our skin and eyes if we are not protected, so it's important to take precautions like wearing sunscreen or sunglasses. Full definition
This last one was surprising, since we think of ultraviolet exposure as contributing to melanoma idults, but not B - ALL (a leukemia of B - cells) in children.
But declines are occurring in the absence of destruction of habitats, suggesting other causes such as pollution from pesticides, acid rain and increases in ultraviolet exposure or even change in climate (Blaustein & Wake 1990).
One preventable risk factor is ultraviolet exposure from indoor and outdoor tanning.
Samuel Wilson, M.D., senior NIEHS researcher on the team, explained that the damage is caused by oxidative stress, or the generation of free oxygen molecules, in response to environmental factors, such as ultraviolet exposure, diet, and chemical compounds in paints, plastics, and other consumer products.
For example, increased damage by ultraviolet exposure, because of reduced ozone levels and summer desiccation, may oppose the direct responses to warming (Convey et al., 2002).
L'Oreal introduced two battery - free wearables that detect ultraviolet exposure at CES 2018.
The study notes that indoor tanning products can produce 10 to 15 times as much UV radiation as the midday sun, and supports the recommendation of medical groups, including the American Academy of Pediatrics, to minimize ultraviolet exposure, including from indoor tanning.
Because these exposures can contribute substantially to our cumulative ultraviolet exposures, the researchers contend, dietary factors with sun - protecting properties might have a substantial beneficial effect.
«But in examining the relationship between ultraviolet exposure and birth outcomes nationwide, there was no evidence to support this.»
Although sunshine exposure and fish consumption provide vitamin D in the form of D3, a different bioactive, plant - derived form of vitamin D, named vitamin D2, was produced in the early 1920s through ultraviolet exposure of foods.
Not only do ultraviolet exposure and pigmentation characteristics serve as risk factors, but so does genetics.
The gases released during a nuclear detonation would also eradicate so much ozone that it would create a worldwide hole of ultraviolet exposure.
Methoprene is broken down by ultraviolet exposure.
These 1 - minute data are collected from a network of stations to help determine the total radiative energy exchange and ultraviolet exposure at any deployment site.
«The number - one cause of nearly every sign of premature aging on the human face is ultraviolet exposure,» Dr. Taylor says.
The most important factor is having your vitamin D serum level tested every six months, as people vary widely in their response to ultraviolet exposure or oral D3 supplementation.
Optimal Exposure Time — In Caucasian skin, equilibrium occurs within 20 minutes of ultraviolet exposure.
For the «sun exposures,» manufactured colored fabric is placed in windows or wrapped around objects and, without the use of dye, emulsion, or any purposefully manipulated chemical process, imagery emerges through time (6 months) and ultraviolet exposure.
Manufactured colored fabric is placed in these locales and without the use of dye, emulsion or any purposefully manipulated chemical process, imagery emerges through time (4 -12 months) and ultraviolet exposure.
Duncan's «sun exposures» are created by placing colored fabrics in windows or wrapping them around objects; without the use of dye, emulsion, or any purposefully manipulated chemical process, imagery emerges on them through a combination of time and ultraviolet exposure.
For example, high levels of ultraviolet exposure can cause degradation of organic materials.
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