Sentences with phrase «ultraviolet light for»

Ozone absorbs ultraviolet light for example which are higher energy than visible light and little of it reaches into the troposphere.

The laboratory practice involves putting a piece of the roof material in a commercial weathering apparatus, which exposes the material to cycles of heat, moisture and ultraviolet light for one day.

Although the dye does not usually stain carpeting, it causes urine to glow blue under ultraviolet light for about 24 hours.

If you have several cats and can't figure out which isn't using the litter box, you can ask your veterinarian for fluorescein, a harmless dye that makes urine glow blue under ultraviolet light for 24 hours.

We've blogged and spoken about the importance of blue light for circadian rhythm entrainment, and ultraviolet light for production of vitamin D and nitric oxide (for example, in «Nitric Oxide and AO+M ist Skin Probiotic at the Perfect Health Retreat»; use the coupon code phd25 for 25 % off AOBiome's nitric oxide enhancing skin probiotic).

For this, the biologists subjected plants to irradiation with ultraviolet light for about two minutes.

In a proof - of - concept experiment, the new plastics dissolved into a clear solution after being exposed to ultraviolet light for 3 hours, indicating that they were completely reduced to their soluble building - block molecules.

Over the past year Jackson Family Wines have been testing a prototype of the BlueMorph, a cutting edge technology especially designed to use ultraviolet light for tank sanitation, reducing or eliminating the use of water, power, and chemicals.

Not exact matches

@Chad: I. Mutations in DNA sequences generally occur through one of two processes: A. Environmental factors: DNA damage from environmental agents such as ultraviolet light (sunshine), nuclear radiation or certain chemicals B. Mistakes that occur when a cell copies its DNA in preparation for cell division.

Microfiltration and ultraviolet light technology purify the water so there is no need for antibiotics or chemicals to combat disease.

Shading is also useful for some varieties, namely the chinense and pubescens species in the high, dry altitudes of the Southwest that have high levels of ultraviolet light.

But, because we worry (and rightly so) about skin cancer, we shield our skin from the sun's ultraviolet light with clothing and sunscreen, which makes it impossible for our bodies to manufacture Vitamin D. Breast milk was never meant to be the source of vitamin D for our babies (as we are all intended to make our own vitamin D with exposure to sunlight), but as we continue to be cautious about exposure to sunlight, babies do not make enough Vitamin D, nor do they receive enough in breast milk.

Pack along a portable sanitizing wand, which beams ultraviolet light to kill germs and bacteria on hard surfaces like toys, restaurant high chairs, and faucets without the need for harsh chemicals and cleaners.

Sometimes babies are treated for jaundice by placing them under an ultraviolet lamp for one or two days, they are left naked with their eyes masked to protect them from the glare of the light.

The high - speed lens has a 1 / 30000 of a second response time and auto - darkening technology, ensuring maximum protection for your eyes against harmful ultraviolet and infrared light.

He placed these compounds in a flask, introduced an electric discharge to simulate lightning and ultraviolet light, and analyzed the resulting chemical mixture for the presence of amino acids, the building blocks of proteins.

THE METHODS Yoshiaki Ohashi, a molecular biologist at the Institute for Advanced Biosciences at Keio University in Japan, chose to work with hardy Bacillus subtilis, a harmless soil bacterium that forms spores resistant to ultraviolet light, dehydration, oxygen and nutrient starvation, and organic solvents.

It found spectral evidence for water in ultraviolet and infrared light measured by two separate instruments on the spacecraft.

The Dalian Coherent Light Source, whose completion was announced today in Beijing, has a twist that makes it unique: It is the only large laser light source in the world dedicated to the particular range of short - wavelength light called vacuum ultraviolet, which makes it «a new tool for the detection and analysis of molecules undergoing chemical reactions,» says Alec Wodtke, a physical chemist at the Max Planck Institute for Biophysical Chemistry and the University of Göttingen in GermLight Source, whose completion was announced today in Beijing, has a twist that makes it unique: It is the only large laser light source in the world dedicated to the particular range of short - wavelength light called vacuum ultraviolet, which makes it «a new tool for the detection and analysis of molecules undergoing chemical reactions,» says Alec Wodtke, a physical chemist at the Max Planck Institute for Biophysical Chemistry and the University of Göttingen in Germlight source in the world dedicated to the particular range of short - wavelength light called vacuum ultraviolet, which makes it «a new tool for the detection and analysis of molecules undergoing chemical reactions,» says Alec Wodtke, a physical chemist at the Max Planck Institute for Biophysical Chemistry and the University of Göttingen in Germlight called vacuum ultraviolet, which makes it «a new tool for the detection and analysis of molecules undergoing chemical reactions,» says Alec Wodtke, a physical chemist at the Max Planck Institute for Biophysical Chemistry and the University of Göttingen in Germany..

To learn more about specific galaxies, astronomers can draw on NASA's fleet of space telescopes, including Spitzer for infrared, the Hubble Space Telescope for visible light, and the Galaxy Evolution Explorer, called Galex, for ultraviolet.

In 2008, Eleftherios Goulielmakis at the Max Planck Institute for Quantum Optics in Garching, Germany, and his colleagues generated what were then the shortest pulses of light ever achieved: extreme ultraviolet bursts just 80 attoseconds long.

For their study, Fréchet's group created dendrimers shrouded with coumarin 2 dyes, which readily absorb ultraviolet light.

Ultraviolet (UV) light can zap amphibian eggs and might be responsible for plummeting populations of frogs and toads, some researchers have found.

Launched in 1997, Cassini has been exploring the Saturn system for more than nine years with a suite of instruments that also includes visible - light cameras, ultraviolet and infrared spectrometers, as well as magnetic field and charged particle sensors.

Aboard are a dozen instruments, including sensors for visible light, ultraviolet, and infrared as well as magnetometers, radar, and plasma detectors.

Based on the pioneering work of Dr. Claire Lugassy and Dr. Raymond Barnhill at UCLA's Jonsson Comprehensive Cancer Center, a new study provides additional support for a process by which melanoma cells, a deadly form of skin cancer, can spread throughout the body by creeping like tiny spiders along the outside of blood vessels without ever entering the blood stream, and that this process is exacerbated by exposure to ultraviolet (UV) light.

Researchers have offered a number of explanations for the die - off: attacks of parasites, exposure to radiation or ultraviolet light, fungal infections, climate change, habitat loss, competition with exotic species, and pesticides.

The tail glows brightly in the ultraviolet but produces no light in the visible spectrum, which is why it escaped detection for centuries.

David Sánchez - Quiles, a doctoral candidate at the Mediterranean Institute for Advanced Studies in Spain, explained that nanoparticles of TiO2 act as ultraviolet light filters in sunscreens, but are often coated with silica or alumina to avoid undesirable reactions on the skin.

«Ultraviolet (UV) light can actually damage DNA, and that's not good for the skin,» said Guy German, assistant professor of biomedical engineering at Binghamton University.

Some observations of how cosmic molecules emit and absorb light at ultraviolet wavelengths have hinted that the fine structure constant, responsible for the strength of electromagnetism, is not the same throughout the universe.

Irradiating ballast water with ultraviolet (UV) light may be a simple way to stop invasive species, according to a study presented here on 21 May at a meeting of the American Society for Microbiology.

The group of Majed Chergui at EPFL, along with national and international colleagues, have shed light on this long - standing question by using a combination of cutting - edge experimental methods: steady - state angle - resolved photoemission spectroscopy (ARPES), which maps the energetics of the electrons along the different axis in the solid; spectroscopic ellipsometry, which determines the optical properties of the solid with high accuracy; and ultrafast two - dimensional deep - ultraviolet spectroscopy, used for the first time in the study of materials, along with state - of - the - art first - principles theoretical tools.

A COMMON powder and ultraviolet light could provide a cheap cure for «sick buildings», according to researchers at the University of Florida.

That gave the telescope containing an intricate array of tiny light - admitting shutters about six minutes above the Earth's atmosphere — where light from the far ultraviolet light end of the spectrum is not filtered out — for a clear view of the target galaxy 56 million light years away.

After analyzing dinosaurs» genetic relationships to reptiles and birds, the researcher determined that dinosaurs not only possessed the three color receptors for red, green and blue that the human eye possesses, but that they, like their closest living relatives, crocodiles and birds, were probably also able to see extremely short - wave and ultraviolet light by means of an additional receptor.

Xiao Zhang, a graduate student in Jie Liu's lab, synthesized rhodium nanocubes that were the optimal size for absorbing near - ultraviolet light.

Chris Carr of Imperial College London, the principal investigator for a suite of instruments called the Rosetta Plasma Consortium, says he hopes theirs may be the first on the spacecraft to actually detect the comet as solar wind begins to blow gas off its surface and the sun's ultraviolet light ionizes it, leaving a trail of plasma.

The amount of data we collected, from X-rays to ultraviolet to near - infrared light, is definitely larger than for any of the other candidate rogue black holes.»

This atmospheric layer includes molecules that absorb ultraviolet and visible light, acting as a kind of «sunscreen» for the planet it surrounds.

Working in collaboration with scientists from the Deutsches Textilforschungszentrum in Krefeld and Sungkyunkwan University in Suwon, Korea, researchers at the Max - Planck - Institut für Kohlenforschung in Mülheim an der Ruhr have developed a process for immobilising different organic catalysts on textiles with the help of ultraviolet light.

After the hydrogen diffused into the fiber cores, the fibers were cured by exposure to ultraviolet laser light for several days.

Fibers treated this way can transmit stable, high - power ultraviolet laser light for long periods of time, resisting the damage usually caused by UV light.

For artificial lighting throughout the museum, conservators chose novel bulbs that use ultraviolet LEDs rather than the standard blue ones, and different blends of light - emitting phosphors that better approximate natural light when operated at the low intensity needed to avoid damaging fragile pigments.

For the first time, scientists working at the National Institute of Standards and Technology (NIST) have demonstrated a new type of lens that bends and focuses ultraviolet (UV) light in such an unusual way that it can create ghostly, 3D images of objects that float in free space.

Researchers at the National Institute of Standards and Technology (NIST) have put this hydrogen «cure» to practical use, making optical fibers that transmit stable, high - power ultraviolet laser light for hundreds of hours.

For example, birds of prey have much greater visual acuity than humans and some, like diurnal birds of prey, can see ultraviolet light.

The preference for red is odd, however, considering that bees technically can't see red; their eyes have receptors for only green, blue, and ultraviolet light.

Mice frequently exposed to ultraviolet (UV) light show symptoms of drug use and addiction, suggesting that every time you seek out the sun's rays, you may just be looking for a high.

But the rare earths are especially valuable for their property of fluorescence: They can absorb light or ultraviolet rays and re-emit the energy as an eerie glow of certain colors specific to each element.