Sentences with phrase «ultraviolet rays such»

The new guidelines will require sun protection formula labeling to have proven effectiveness against ultraviolet rays such as UVA and UVB to claim protection against skin cancers.

Not exact matches

Some, such as Chlamydomonas nivalis, spread first as greenish blooms as they begin to photosynthesize, and then turn a reddish colour as they produce carotenoid pigments to protect themselves from the sun's ultraviolet rays.

Ultraviolet rays have enough energy to allow the reaction in common materials such as titanium dioxide, but UVs make up only about 4 percent of the light Earth receives from the sun.

Before doing so, researchers would need to make sure the paint still works under harsh conditions, such as exposure to the sun's ultraviolet rays.

Vitamin D can be found in a small group of foods such as fish and eggs and is also produced naturally inside your body when your skin is exposed to the ultraviolet rays of the sun.

We all need some combination of moisturizer and antioxidants (such as vitamins C and E, soy or green tea, as each repairs skin and protects it from pollutants and ultraviolet rays).

According to scientists, the dark skin is due to the higher level of ultraviolet rays that such people get, which is reflected from the ice and snow surface during the summer season, and the vitamin D that they obtain from eating fish and seal.

Pixels (Blu - ray + Ultraviolet) Details: 2015, Sony Pictures Home Entertainment Rated: PG - 13, suggestive comments, language The lowdown: A science fiction comedy about aliens who misinterpret video feeds of classic arcade games as a declaration of war and retaliate by attacking our planet with games such as Pac - Man, Donkey Kong, Centipede, Space Invaders and Galaga.

One of the more unique aspects of the Barnes & Noble deal is that because it is such a large retailer of DVD and Blu - ray discs, if a user buys an UltraViolet - compatible disc online or at a store, they can instantly get access to the item on their Nook Video devices.

I am frequently asked to write on the variety of topics associated to Astronomy such as Observational astronomy, Radio astronomy, Infrared astronomy, Optical astronomy, Ultraviolet astronomy, X-ray astronomy, Gamma - ray astronomy, Astrometry and celestial mechanics, Theoretical astronomy, Solar astronomy, Planetary science, Stellar astronomy and many others.

When the precursors to vitamins D2 and D3 are exposed to ultraviolet rays (such as occurs when the skin is exposed to sunlight), they yield their activated forms.

However, many of the aerosols scientists have suggested using, such as diamond dust or alumina, are harmful to the ozone (a layer that protects the Earth's surface from some of the sun's ultraviolet rays) and human health.

The sun's solar rays are in the form of ultraviolet radiation which due to it's intensity and frequency has the ability to penetrate the more dense greenhouse gases such as CO2 and methane.