's Avaira and ClearSight product lines meet Class 2 standards, in which 70% of UV-A and 95% of UV-B is blocked.
Some Class 2 lenses beat the standard: Avaira, for example, block at least 75% of UV-A radiation and 99% of UV-B radiation, according to the package insert.
Only a limited number meet Food and Drug Administration standards for "Class 1" protection, in which 90% of UV-A radiation is blocked and 99% of UV-B radiation is blocked.
To the long list of great ideas gone bad, add the UV Waterworks--a simple, cheap device to purify filthy drinking water in poor countries.
High pollen counts and - as you'd expect - high UV levels will be a feature on most days.
Stibich showed that a high-energy form of UV called UV-C could kill C. diff, in either its active state or as a dormant spore protected by a tough seedlike shell.
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Xenex uses harmless xenon gas to blast a broad spectrum of UV wave- lengths in all of ten minutes.
FORBES: How A New Machine Uses U.V. Rays To Blast Killer Bacteria
UV-blocking contact lenses have been around for more than a decade, but have gained in popularity in recent years.
Furthermore, we believe the DVD (and broader optical disk) category has already entered a long-term decline (analogous with peak-to-trough decline of VHS and CD categories), caused by rapid growth in on-line streaming and a la carte rentals (though we admit that UV has been a bit of a disappointment, so far).
Vitamin D is incorporated in the body when skin is exposed to sunlight of a certain wavelength but in the UK, during winter months, UV-B radiation can be insufficient to properly support vitamin D synthesis in the body.
Orb-weaver spiders attract insects to their webs with ultraviolet (UV) decorations, according to a new study.
Dr. Costarelis advises his patients to eat a nutrient-rich diet and stay out of the sun, because UV rays damage hair.
WSJ: Old Hair Days: Products to Help Manage Gray and Thinning Hair
But the increased ultra-violet (UV) solar radiation which the damaged ozone allows through to the surface of the earth is a threat to all living things.
Nano bar codes are the molecular versions of traditional bar codes--metal nano-particles that have specific, recognizable chemical fingerprints that can be read by a machine, perhaps a UV lamp or optical microscope.
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