How To Use Ultraviolet In A Sentence

  • By recording the spectra of several distant quasars whose light pierces the Milky Way, the spacecraft revealed some 50 ultraviolet-absorbing gas clouds around our galaxy.
  • AERONET is a global network of more than 100 sun photometers that measure the amount of sunlight absorbed by aerosols (fine particles in the air) at wavelengths from ultraviolet to infrared.
  • Then the mixture is applied to a cleaned device surface and activated by ultraviolet light.
  • Test your different textiles for color fastness and degradation to long-term ultraviolet exposure.
  • The patent is issued for ultraviolet protective coatings for application to heat sensitive record materials and other photodegradable printed matter.
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  • an ultraviolet lamp
  • But one other thing that helps is ultraviolet light. Times, Sunday Times
  • Research published in 1994 suggests that increased ultraviolet radiation caused by stratospheric ozone depletion may be killing frog eggs.
  • In winter, the stems, or canes, turn from green to red, which helps protect them from ultraviolet rays and oxidation.
  • The uranium gives it a yellow or green colour and makes it glow under ultraviolet light. Times, Sunday Times
  • Deep ultraviolet photolithographically defined ultra-thin films for selective cell adhesion and outgrowth and method of manufacturing the same and devices containing the same
  • The new licences meet international standards, featuring micro-printing, holograms and images only visible in ultraviolet light.
  • A solarium is a device emitting ultraviolet rays used to produce a cosmetic tan. News from Estonia, Latvia and Lithuania. The Baltic Times.
  • Metal carbonyls have high oscillator strength, large absorption coefficients, and strong electronic resonance in the visible and ultraviolet regimes, making them excellent spectroscopic probes.
  • If ozone deterioration persisted, they warned, solar ultraviolet radiation would flood Earth.
  • SUSPEN intercomparison of ultraviolet spectroradiometers. Long-term change and variability in surface UV irradiance in the Arctic
  • The uranium gives it a yellow or green colour and makes it glow under ultraviolet light. Times, Sunday Times
  • The band from 0.1 to 0.4 micrometers is called ultraviolet radiation. Electromagnetic radiation
  • Although the ultraviolet ray only occupies the sunlight 3 %, also the suitable ultraviolet radiation has the sterilization.
  • The crystals fluoresce and phosphoresce a weak pale yellowish-green in ultraviolet radiation.
  • In addition to its suite of cameras, Skylab was stocked with tons of scientific equipment, including coronagraphs, spectrometers, and ultraviolet and X-ray telescopes.
  • The ultraviolet “rays” are not visible; thus it is incorrect to call ultraviolet energy ultraviolet “light.” The New Super-Nutrition
  • A layer of ozone gas in the stratosphere helps to protect the Earth from the full onslaught of the sun's ultraviolet radiation. Times, Sunday Times
  • The British also had developed a device called a ceilometer, which triangulated ultraviolet rays to calculate how low clouds were over the three Berlin airports. Daring Young Men
  • Metallocenes are useful in industrial chemistry as reducing agents, anti-knock agents for internal combustion engine fuels, absorbers of ultraviolet light, and free radical scavengers.
  • In addition to its suite of cameras, Skylab was stocked with tons of scientific equipment, including coronagraphs, spectrometers, and ultraviolet and X-ray telescopes.
  • With final ultraviolet light treatment, the effluent has been treated for everything but viruses.
  • The gluten also shields the helpful microbes from the sun's lethal ultraviolet rays.
  • When many sunspots are visible, the Sun is somewhat brighter than in ‘quiet’ times and radiates considerably more in the ultraviolet.
  • High up in the sky was a protective layer of gas that screened out dangerous ultraviolet rays from the sun.
  • Each eye possesses trinocular vision and can see into the ultraviolet spectrum. Nessus Diary Entry
  • It survived heat, radiation and ultraviolet light. Times, Sunday Times
  • One of the alternatives to traditional chemical disinfection is the use of ultraviolet energy. How Safe is Your Water?
  • Right, the same flower as seen by a bee, photographed in ultraviolet light.
  • Objectives : To evaluate the therapeutic effects of acute superficial phlebitis with ultraviolet Irradiation and ultrashort wave therapy.
  • However, color display as well as camouflage is likely to involve visual signals, ambient light, and/or photoreceptors notably active in the near ultraviolet to which humans are not sensitive.
  • I don't have an ultraviolet lamp with me," Jake said, balancing the brooch on his palm," but I suspect this will fluoresce white. AMBERBEACH
  • Ultraviolet spectrum is applied to analyze the differences of varying decoctions of "Jade-Screen Powder".
  • One quite plausible possibility is the absorption of ultraviolet light. Eating the Sun: How Plants Power the Planet
  • One puzzle was how the bacteria could survive the intense ultraviolet rays of the sunshine so high up in the atmosphere. Times, Sunday Times
  • It is advantageous in that it protects the waterproofing from damage by ultraviolet radiation, and precludes the need for tiles or other shingles.
  • Ozone shields the planet from the effects of the sun's ultraviolet radiation.
  • The uralolite exhibits faint green fluorescence in shortwave ultraviolet radiation.
  • Exposure to ultraviolet light is closely linked to skin cancer.
  • Many other agents have been used to treat alopecia areata, including minoxidil, psoralen plus ultraviolet A, and anthralin (Anthra-Derm), but success rates vary.
  • The dramatic false-color image also highlights the contributions of hydrogen, sulfur, and oxygen, energized by intense ultraviolet radiation, to the nebular glow.
  • The remnant stellar core in the centre is now sending out a flood of ultraviolet light into the surrounding gas.
  • The gene has been found to make redheads more sensitive to ultraviolet light, which is why they burn more easily in the sun, and it predisposes them to skin cancer.
  • Toshiba has developed a high resolution photoresist (photo-sensitive film) essential for future application of EUV (extreme ultraviolet) lithography in semiconductor fabrication, and proved its viability with the world's first 20nm-scale generation process technology. November 2009 - Fareastgizmos.com
  • Holes in the ozone layer, or a global breakdown of stratospheric ozone would lead to increasing doses of ultraviolet radiation at the Earth's surface.
  • Bees and butterflies can see ultraviolet rays, and bats and porpoises can hear sounds two octaves beyond our range.
  • The maximal deflexion and drive force of PLZT bimorph driver under ultraviolet illumination were attained from material dynamics analysis.
  • Ultraviolet radiation penetrates the coating and carbonizes the oils in the wood, causing the wood to darken beneath the varnish.
  • Broadband radiometers are common tools to measure UV-A, UV-B or the ultraviolet index.
  • RESULTS By the ultraviolet spectrum and infrared spectrum, the artificial antigen was successfully synthesized and identified.
  • They can't see red, but are attracted to some red flowers, such as bee balm, that reflect ultraviolet light.
  • Ultraviolet rays can burn the hair's cuticle, or outer layer, leaving it dry and brittle; they also can damage pigment and reduce hair's strength and elasticity.
  • The main cause is ultraviolet radiation from the sun or sunbeds. Times, Sunday Times
  • Establishments primarily engaged in manufacturing electrotherapeutic lamp units for ultraviolet and infrared radiation are classified here.
  • Laminated glass was chosen for its long life and the protection it affords against ultraviolet rays.
  • In addition, and especially important to its effectiveness as a remedy for ulcers and running sores, it is a rich source of ergosterol, which is converted by the sun's ultraviolet rays into vitamin D. THE NATURAL REMEDY BIBLE
  • He also studied the orientation of purines and pyrimidines in tobacco mosaic virus and in nucleic acids, by measuring the ultraviolet dichroism of oriented specimens, and he studied, with the visible-light polarizing microscope, the arrangement of virus particles in crystals of TMV and measured dry mass in cells with interference microscopes. Maurice Wilkins - Biography
  • An average of 420 joules of ultraviolet laser energy, known as 3-omega, was achieved for each beamline, for a total energy of more than 80 kilojoules (a joule is the energy needed to lift a small apple one meter against the Earth's gravity). PhysOrg.com - latest science and technology news stories
  • Depletion of the Earth's ozone layer is considered responsible for an increase in the solar ultraviolet irradiance reaching the surface.
  • The ultraviolet photo shows the true extent of damage to her skin.
  • The ozone layer surrounding the earth protects our skin from being hurt by the ultraviolet rays.
  • Ultraviolet visible diffused reflection measure showed that composite carrier widened TiO2 response range towards light, establishing the favorable foundation for photo catalysis reaction.
  • Since a lack of pigment leaves albinos defenseless against both ultraviolet rays and light; [,] they are subject to severe photophobia and heliophobia (fear of light and the sun) from birth on.
  • Ultraviolet light from the hot cluster stars causes the surrounding nebula to glow.
  • After that, it flows through a high intensity ultraviolet light unit, which kills any remaining organisms.
  • According to Sharp: Insects have a behavior phototaxis in which they tend to congregate in the vicinity of light having a wavelength in the ultraviolet range of around 350 nm. Sharp’s Earthquake Detecting Solar Streetlights | Inhabitat
  • When nosing around for protection, you want lenses that block ultraviolet (UVB and UVA) light radiation.
  • Ozone is the earth's primary filter for ultraviolet radiation.
  • The comparative study was conducted by trait identification, microscopic identification, thin-layer chromatography and ultraviolet spectroscopy.
  • Ultraviolet spectrum is applied to analyze the differences of varying decoctions of "Jade-Screen Powder".
  • Without this protective blanket the ultraviolet radiation would be very harmful indeed to human and animal health. Times, Sunday Times
  • Light therapy, with ultraviolet A or B, is available at specialist hospital clinics or with lamps that can be used at home.
  • We already know that ultraviolet light increases the risk of skin cancer. Times, Sunday Times
  • Sand on beaches, concrete pavements and snow also reflect up to 40% of the harmful ultraviolet rays.
  • Gerba is a consultant to the makers of Purell hand sanitizer , Clorox bleach and the Oreck antibacterial vacuum cleaner, which uses ultraviolet light to kill germs on your rug.
  • The oxygen formed ozone, shielding the sun 's ultraviolet rays and allowing many classes of life to emerge in newly formed coastal shelves. The Sun
  • He would need a warm dry shelter during bad weather, such as a greenhouse or utility area with a ultraviolet heat lamp. Times, Sunday Times
  • That is, the ultraviolet radiation from those first objects had to ionize hydrogen between the galaxies, splitting it into protons an electrons. Archive 2008-07-23
  • As the temperature rises, the maximum intensity of the radiated light moves into the red, then extends through the spectrum to the ultraviolet.
  • More people wear glasses or contact lenses, which cut down ultraviolet light entering the eyes. M. E. Post-Viral Fatigue Syndrome - How To Live With It
  • The image includes X-ray data from Chandra (colored purple), optical and ultraviolet (UV) data from Hubble (red and orange), and radio emission from the Very Large Array (VLA) and MERLIN (blue).
  • It will investigate the shorter-wavelength radiation from the objects observed by the ultraviolet telescope.
  • They may also be protective in skin conditions attributed to excessive ultraviolet light exposure.
  • Exposure to ultraviolet light is closely linked to skin cancer.
  • High up in the sky was a protective layer of gas that screened out dangerous ultraviolet rays from the sun.
  • Diode lasers are now available in discrete colors from the infrared to blue and into the near ultraviolet.
  • The systems are entirely mechanical, and do not require electric power unless you install an ultraviolet sterilizer lamp in your holding tank, which is usually not necessary. Is Your Drinking Water Safe, and what can you do about it?
  • But ultraviolet light converts the molecule to the cis isomer, in which both propellers are on the same side.
  • Without this protective blanket the ultraviolet radiation would be very harmful indeed to human and animal health. Times, Sunday Times
  • In 1889 Widmark's important work had demonstrated that the most refrangible rays of the spectrum, in particular the ultraviolet rays, had a strong and specific effect on those parts of the body surface which were exposed to them. Physiology or Medicine 1903 - Presentation Speech
  • The ultraviolet reflectance of web decorations may play an important role in sensory exploitation.
  • The amount of solar ultraviolet radiation at the earth's surface depends on the incoming solar energy and on the transmission properties of the atmosphere.
  • A further possibility is discoid lupus erythematosus, the technical term for an autoimmune dermatitis of dogs that is usually confined to the face and is frequently made worse by exposure to ultraviolet light.
  • As the semiconductor industry looks to the future, stepper manufacturers are gearing up for extreme ultraviolet lithography.
  • It survived heat, radiation and ultraviolet light. Times, Sunday Times
  • The thermal tide may also be responsible for dim ultraviolet radiation observed to come from the middle of the night hemisphere.
  • Those early genera that survived had a built-in immunity to ultraviolet radiation, thus helping in the struggle for continued survival.
  • Durable Abrasion resistant Resilient Nonpilling Nonshedding Nonstatic Ultraviolet light-resistant—nonfading Colorfast Flame resistant HOME COMFORTS
  • In animal studies, application of anthracene to the backs of hairless mice, followed by ultraviolet radiation exposure, resulted in enhanced dermal inflammation, compared with ultraviolet radiation alone.
  • In the second step, the lightning bolts produce invisible ultraviolet light that is absorbed by the wintergreen molecules, causing them to fluoresce, or glow.
  • As a historic method, Ultraviolet Germicidal Irradiation ( UVGI ) has an important rule to prevent diseases.
  • A more accurate map shows a wash of differing hues of indigo and violet, with some smatterings of infrared and ultraviolet at the extremes.
  • The uranium gives it a yellow or green colour and makes it glow under ultraviolet light. Times, Sunday Times
  • A screen on the light box filters out ultraviolet rays.
  • This layer surrounds the earth and filters ultraviolet light from the rays of the sun.
  • The ozone layer is vital for absorbing ultraviolet rays from the sun that would otherwise be harmful. Times, Sunday Times
  • Sun creams work by blocking harmful ultraviolet radiation.
  • The oxygen formed ozone, shielding the sun's ultraviolet rays and allowing many classes of life to emerge in newly formed coastal shelves. The Sun
  • In addition, the authors study ultraviolet(UV) light response of sodium titanate nanowire-based devices and find that UV light may induce a large photoconductivity .
  • Ultraviolet radiation is largely absorbed in the stratosphere, where it combines with ozone molecules to form what is known as stratospheric ozone. Yahoo! News: Business - Opinion
  • The bright light, high ultraviolet radiation, and cool temperatures of the snowfields where many species of snow algae are found would destroy a houseplant, according to Williams.
  • After being purified, the moth virus is formulated to contain a sticking agent as well as an ultraviolet protectant to delay its inactivation in sunlight once used in the field.
  • Material from some localities fluoresces reddish-yellow under ultraviolet radiation.
  • The escalating cost of these tools for conventional optical and extreme ultraviolet lithography is driven in part by the need for complex optical sources and optics.
  • The research carried out in recent years, in which Windaus himself has also played a leading part, has revealed the very important fact that, on being irradiated with ultraviolet light, this ergosterol assumes exactly the same properties as the antirachitic vitamin, "vitamin D", i.e. it will cure rachitis Nobel Prize in Chemistry 1927 and 1928 - Presentation Speech
  • Sunscreens can help reduce the penetration of ultraviolet rays into the skin.
  • Under the microscope, a rubber-like protein known as resilin originally thought to power the jump alone can be located by its bright blue fluorescence under illumination with ultraviolet light. YubaNet.com
  • He would need a warm dry shelter during bad weather, such as a greenhouse or utility area with a ultraviolet heat lamp. Times, Sunday Times
  • Ultraviolet fluorescence spectrum study indicated that the complex had no fluorescence.
  • Community Beat Officer Tracy Finn said police had devised an ultraviolet marking scheme to tackle the problem, but they need more people to come forward and pick up the pens to make it a success.
  • The samples were tested for fluorescence in a darkened room with 4-watt long- and shortwave ultraviolet lamps.
  • Earlier this month, NIF became the first fusion laser in the world to break the megajoule barrier (a megajoule is the energy consumed by 10,000 100-watt light bulbs in one second) by delivering 1.1 million joules of ultraviolet energy to the center of its target chamber - more than 25 times more energy than the previous record-holder. U.S. Department of Energy - Press Releases
  • Effects of longterm, elevated ultraviolet-B radiation on phytochemicals in the bark of silver birch (Betula pendula). Effects of ultraviolet-B on forest vegetation in the Arctic
  • Long ultraviolet would get down to the earth if there were no ozone.
  • Many diamonds are fluorescent and phosphorescent under ultraviolet radiation.
  • Zhong and colleagues synthesized DNA in the lab and exposed it to ultraviolet light, producing damage similar to that of sunburn, then added photolyase enzymes. Medindia Health News
  • The beam also contains a significant proportion of mid- and deep-ultraviolet; kills bacteria and decomposes any adulterants on the surface of the meat.
  • And the Detonator goggles from Zeal Optics feature "photochromatic" lenses -- akin to what are used on sunglasses -- that adjust by themselves to a change in light within 30 seconds (the lens changes color depending on the ultraviolet-light levels). Goggles made easy
  • Many species - including the trichromatic honeybee - have a kind of photoreceptor sensitive to the near-ultraviolet, outside the visible spectrum.
  • The substrates were provided by Crystal IS, a manufacturer of single-crystal aluminum nitride substrates for the production of high-power, high-temperature, and optoelectronic devices such as blue and ultraviolet lasers. The World’s Blackest Material | Impact Lab
  • The key factor in heliotherapy is the invisible ultraviolet band, and the key receptor is the retina. The Tao of Health, Sex and Longevity
  • It is said that the carbon in charcoal powder with strong ultraviolet absorption capacity, as well as radiation shielding ability on the computers and other electrical appliances.
  • This stratospheric ozone layer filters out much of the sun's harmful ultraviolet radiation. An Introduction to Community Health
  • They exposed the vulnerable mice - those with their own Langerhans cells - to ultraviolet light using a sunlamp.
  • I don't have an ultraviolet lamp with me," Jake said, balancing the brooch on his palm," but I suspect this will fluoresce white. AMBERBEACH
  • More than 2400 equilibrium constants of acid-base reactions, 1500 complexation enthalpies, and nearly 2000 infrared and ultraviolet shifts upon complexation are gathered together in 25 thermodynamic and spectroscopic scales of basicity and/or affinity. AvaxHome
  • It is already well established that ultraviolet radiation produces free radicals in tissue. The Antioxidant Health Plan
  • Melanin producing cells in our bodies are activated by ultraviolet light from the sun and can have a protective effect.
  • Ultraviolet light can trigger a flare of lupus, so it's important to avoid overexposure.
  • Ozone is the earth's primary filter for ultraviolet radiation.
  • Researchers at Canada's McGill University installed UVGI or ultraviolet germicidal irradiation ventilation systems in three office buildings in Montreal.
  • You can enhance faded parts with an ultraviolet light effect. Times, Sunday Times
  • The mineral does not fluoresce under ultraviolet radiation.
  • Everything had been renovated in a who-cares-how-much-it-costs kind of way, right down to the doorknobs and mahogany-cabineted kitchen with Gagenot stove, Thermidor oven, Sub-Zero fridge, and ultraviolet-ray-protected windows (yes, there is such a thing). Former King of Cool, Gene Pressman, Grabs $1.9 Million Town House
  • Another news flash unreported is that standing outside can expose you to ultraviolet radiation leading to skin cancer and untimely death. Low-energy Lights Bulbs Cause Space Pirates « Unambiguously Ambidextrous
  • The sun's ultraviolet rays are responsible for both tanning and burning.
  • This is an ‘enhanced true color’ view spanning ultraviolet to infrared wavelengths.
  • First, although most of these mutations were induced by ethyl methanesulfonate, some were spontaneous and others were caused by ultraviolet light and trimethyl psoralen.
  • Sunscreen is topical preparation designed to protect the skin from the effects of ultraviolet light.
  • But this approach encourages exposure to the harmful ultraviolet rays given off by sunbeds and raises your risk of skin cancer.
  • The BAT detects bursts and initiates the autonomous slewing to bring the XRT and the Ultraviolet / Optical Telescope within focus of the burst.
  • It survived heat, radiation and ultraviolet light. Times, Sunday Times
  • It will capture ultraviolet light emanating from distant objects including a quasar that is believed to have formed five billion years ago. Times, Sunday Times
  • The satellite, called Astron, is intended to study ultraviolet radiation and X-rays from celestial objects.
  • Such gases, mixed with water vapour, were subjected to electrical discharge and ultraviolet light.
  • It makes authentication to the shape, ultraviolet and infrared spectrum of the Chinese holly leaf and Gonglao leaf, as well as the medicinal traits.
  • Ultraviolet and visible light comprise only a small portion of the wide ranging electromagnetic radiation spectrum.
  • Injury thresholds resulting from exposure of less than 10 seconds to the skin from far infrared and far ultraviolet radiation are very superficial and may involve changes to the outer dead layer of the skin.
  • The container is invisible until you shine an ultraviolet light on it.
  • Other problems that afflict polypropylene fabrics are poor dyeability (which producers have made slow progress in improving), strong sensitivity to heat and light (it has the lowest resistance to ultraviolet radiation of all fibers), extremely low absorbency, and ready oil-staining and odor-holding. HOME COMFORTS
  • A hat could tell you how much ultraviolet light you're being exposed to.
  • Why is there such concern about ultraviolet radiation? An Introduction to Community Health
  • Among its advantages, MEG is more efficient and can occur with lower-energy photons in the visible region of the solar spectrum compared to a multiplication process of charge carriers in bulk semiconductors (a process called impact ionization, which is generally restricted to the ultraviolet region where solar photons are absent or scarce). PhysOrg.com - latest science and technology news stories
  • I’m sorry, I don’t need critics to tell me that Ultraviolet is just another rehash from a notoriously lame genre … the action-chick-flick. EXTRALIFE – By Scott Johnson - For those of you wanting to see Ultraviolet
  • Sunburn: Acute skin inflammation caused by overexposure to ultraviolet radiation from sunlight or other sources.
  • It is composited of three views captured through ultraviolet, green, and infrared filters to bring out compositional variations across the sunlit hemisphere of Iapetus.
  • These range from SoyScreen, a 'green' sunscreen, based on ferulic acid and soybean oil, to sulforaphane, a broccoli ingredient that significantly reduces ultraviolet light damage. Samuel S. Epstein: How to Sunbathe Safely
  • Sun lamps produce high levels of Ultraviolet B radiation and the operator should be shielded from the light as much as possible.
  • Solar light can send off ultraviolet rays, just like the sun does.
  • Ultraviolet light, also called ultraviolet radiation or UV, is a portion of the electromagnetic spectrum between x-rays and visibility light. EHow - Health How To's
  • You can enhance faded parts with an ultraviolet light effect. Times, Sunday Times
  • This foil doesn't do very well in the air, but it protected it from meteorites and from the ultraviolet radiations from the sun.
  • The Restore Clean Water System from HoMedics claims that its built-in ultraviolet lights will kill 99. 9999% of bacteria, 99.99% of viruses and 99.95% of microbial cysts in your drinking water. A UV Water Pitcher Kills 99.999% of Germs in Drinking Water | Impact Lab
  • Although new stars primarily radiate ultraviolet light, the dust they generate absorbs that light and re-emits it in the near-infrared.
  • But what is so special about water that makes its absorptions extend all the way from the far infrared to the near ultraviolet?
  • They help deplete the ozone layer, allowing ultraviolet rays to cause deadly skin cancers.
  • Many diamonds are fluorescent and phosphorescent under ultraviolet radiation.
  • It is true that ultraviolet light causes mutations in all living organisms.
  • Vacuum ultraviolet lamp ionization source is attractive for portable analytical instrument because of its smallness and simpleness.
  • In the chemistry laboratory, ultraviolet and visible spectroscopy (UV-vis spectroscopy) is used to study molecules and inorganic ions in solution.
  • Those early genera that survived had a built-in immunity to ultraviolet radiation, thus helping in the struggle for continued survival.
  • The bulbs are covered with a plastic screen that helps block out potentially harmful ultraviolet rays that can cause cataracts and skin problems.
  • The uranium gives it a yellow or green colour and makes it glow under ultraviolet light. Times, Sunday Times
  • The ultraviolet flash from the supernova explosion, which we first saw 18 years ago, ionized the ring and causes it to glow.
  • Construction workers are at higher risk due to long spells working in direct sunlight and ultraviolet rays reflected from surfaces. The Sun
  • You can enhance faded parts with an ultraviolet light effect. Times, Sunday Times
  • Ultraviolet radiation emerging from the central source excites nearby gas causing it to glow.
  • In the upper atmosphere, or the stratosphere, ozone is very good, as it acts as a shield to protect life on Earth from harmful Ultraviolet sunlight.
  • Does my skin absorb enough ultraviolet rays to produce sufficient vitamin D? Pediatricians say kids need more vitamin D
  • At present, the Netherlands and other countries have common used ultraviolet disinfection, and of nutrient for automated equipment, while China used more chemical pesticide to disinfection.
  • One problem you will encounter at high altitudes is an excess of ultraviolet light, which results in atmospheric haze.
  • The resulting reaction is due to a substance called psoralen, used to make the skin more sensitive to a wavelength of ultraviolet light, UV-A, used to treat certain skin conditions. Canada.com Top Stories
  • The functional significance of vertebrate ultraviolet vision has been the focus of an increasing number of research studies over the last decade.
  • The AquaStar device is a one - liter bottle with an ultraviolet lamp inside.
  • We need the ozone shield to protect life on Earth from the sun's harmful ultraviolet radiation. Times, Sunday Times

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