Sentences with phrase «of ultraviolet light on»

The other photographs on view, of glaciers in Iceland taken from 2001 to 2008, illustrate the effects of ultraviolet light on this landscape over time: the icebergs appear dramatically diminished in size in the later photographs.

Among their many activities, the Techbridge girls at John Swett wrote and produced an educational video on the phases of the moon, launched a campaign to educate the community about the harmful effects of motor oil and lawn fertilizer runoff seeping into San Francisco Bay, and studied the effect of ultraviolet light on plant growth.

This response is activated through the response of ultraviolet light on the retina, at the back of the eye.

Not exact matches

But if you go south and higher in elevation, full sun with all its ultraviolet light can burn the crap out of your plants, causing sunscald on the pods and leaf drop on more sensitive varieties like habaneros, which need some shading.

Speaking on the Citi Breakfast Show on Friday, Dr. Boateng highlighted some of his innovations including developing world's fastest optimization algorithm, as well as a UV [ultraviolet] light technology that heal wounds.

Birds can perceive both visible and ultraviolet light, so researchers snapped regular and UV photos of lizards basking on rocks to figure out how the lizards look to birds.

Shedding light on the Dark Ages When the first stars formed, their intense ultraviolet light «reionized» the universe, stripping electrons from much of the hydrogen.

The Methods: Photochemical modeling by a Caltech team indicates that ethane, a hydrocarbon detected on Titan by both of the Voyager spacecraft and the European Infrared Space Observatory, is created when solar ultraviolet light breaks down methane, a minor component of Titan's nitrogen - rich atmosphere, into a stew of organic molecules that form a dense orange - brown smog.

Now, a new study on Earth allays those fears, at least partially, showing that 8 hours of harsh ultraviolet (UV) light can decimate even the hardiest of bacteria.

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.

Islands of amorphous water ice were created on a substrate by irradiating crystalline ice with ultraviolet light at -263 C / -441 F.

Those effects will likely differ depending on the kind of plastic, which varies depending on its starting polymer and the additives used to impart certain qualities such as flexibility, sturdiness or durability under ultraviolet light.

In two months the Big Apple will begin relying on both ultraviolet light and chlorination to rid its drinking water of cryptosporidium, giardia and other pathogens

Collapsing out of dense pockets of hydrogen gas early in the universe's history, the first stars flickered on, emitting ultraviolet light that interacted with the surrounding hydrogen.

The images at right of Earth's aurora borealis — the shimmering lights created by particles of solar wind crashing into the polar atmosphere — were taken on April 9 by the UltraViolet Imager, an instrument on board nasa's polar satellite.

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.

More specifically, New York City officials are building a water disinfection facility some 30 miles (50 kilometers) north of Manhattan on a 153 - acre (62 - hectare) property in the Westchester County towns of Mount Pleasant and Greenburgh that will use ultraviolet (UV) light to destroy water - borne pathogens such as Escherichia coli, giardia, and cryptosporidium in reservoirs that serve city dwellers.

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.

In 2015, chemists from Cambridge University, led by John Sutherland, who is a co-author on the current study, discovered a way to synthesize the precursors to RNA using just hydrogen cyanide, hydrogen sulfide, and ultraviolet light — all ingredients that are thought to have been available on early Earth, before the appearance of the first life forms.

Future x-ray and ultraviolet telescopes will map the cosmic web more thoroughly, he predicts, shedding light on how gravity assembled hot gas into today's panoply of galaxies and stars.

You first have to deposit layers of material, place a stencil - like mask on it, and then shine ultraviolet light to etch away the exposed material.

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.

The devices currently run on ultraviolet light — but the researchers are now working on micro swimmers that respond to a near - infrared wavelength, which can penetrate a few centimeters of tissue.

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 researchers modified it by inserting azobenzene, a kind of chemical switch that takes on different shapes when illuminated with visible or ultraviolet light.

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.

Some probably formed on Earth billions of years ago as lightning and ultraviolet light from the sun laced the primitive atmosphere.

Using premier beams of ultraviolet light at the ALS, a DOE national user facility for synchrotron radiation, the collaboration has reported the first demonstration of high - temperature superconductivity in the surface of a topological insulator — a unique class of advanced materials that are electrically insulating on the inside but conducting on the surface.

Next ultraviolet light is used to project an image of the desired circuit pattern including components such as wires and transistors on the wafer, chemically altering the resist.

In 2003, however, researchers at the University of Groningen in the Netherlands who mounted single molecules of diarylethene between gold electrodes found that, even though the switches could be turned off by visible light, they could not then be turned back on by ultraviolet.

Kaaret and his team focused on a galaxy called Tol 1247 - 232, located some 600 million light years from Earth, one of only three nearby galaxies from which ultraviolet light has been found to escape.

«There is no atmosphere on the moon, so unlike Earth, the ultraviolet light from celestial objects can be detected on the moon,» says Jing Wang of the National Astronomical Observatories in Beijing, China, who is in charge of the telescope.

STScI / NASA press releases: Hubble Makes the First Precise Distance Measurement to an Ancient Globular Star Cluster Hubble Unmasks Ghost Galaxies Deepest View of Space Yields Young Stars in Andromeda Halo Hubble Identifies Source of Ultraviolet Light in an Old Galaxy ESA press releases: Hubble Unmasks Ghost Galaxies Four Unusual Views of the Andromeda Galaxy Public speaking: On the Trail of the Missing Galaxies High - Level Science Products from Large and Treasury Programs: GO - 9453: The Age of the Andromeda Halo (126 orbits) GO - 10265: The Formation History of Andromeda (107 orbits) GO - 10816: The Formation History of Andromeda's Extended Metal - Poor Halo (128 orbits) GO - 11664 / 12666: The WFC3 Galactic Bulge Treasury Program: Populations, Formation History and Planets (56 orbits) GO - 12549: The Formation History of the Ultra-Faint Dwarf Galaxies (113 orbits)

The galaxies are the smallest, faintest, and most numerous galaxies ever seen in the remote universe, and were captured by Hubble deep exposures taken in ultraviolet light, and confirmed using the mighty Keck I telescope on the summit of Mauna Kea on the island of Hawaii.

The research team then focused a beam of vacuum ultraviolet light from the synchrotron on the heated gas mixture that knocked away electrons (an effect known as ionization).

Michigan researchers will look at the ability of high intensity ultraviolet light delivered by Xenex Germ - Zapping Robots to protect patients from deadly superbugs, such as Clostridium difficile, found on surfaces.

«What we're going to do is examine the structure and composition, the energy inputs into the upper atmosphere, the solar wind, the solar ultraviolet - light, and solar energetic particles that come out of major storms on the sun, and see how the atmosphere responds,» Jakosky said.

From now on, each protein molecule can be traced through all its stages with the help of blue to ultraviolet light via fluorescence.

For example, one such agent is the ultraviolet light in sunshine on skin cells, while tobacco - derived chemicals cause mutations in the oesophagus of smokers.

This sequence of images of the the Sun in ultraviolet light was taken by the Solar and Heliospheric Observatory (SOHO) spacecraft on Feb. 11, 1996 from its unique vantage point at the «L1» gravity neutral point 1 million miles sunward from the Earth.

As for the earlier study on carbon and ultraviolet light, environmental scientist Rose Cory, of the University of North Carolina, focused on sites in Alaska where melting permafrost has caused the soil to collapse into sinkholes or landslides.

My work currently focuses on observations of the ultraviolet light emitted from small stars, and in particular flares of that emission.

In a feat of manipulating substances at the nanoscale, UCLA researchers and colleagues demonstrated a method for isolating two molecules together on a substrate and controlling how those two molecules react when excited with ultraviolet light, making detailed observations both before and after the reaction.

A close - up of one active region on the sun, seen in profile in extreme ultraviolet light, produced an interesting display of dynamic and frenetic sputtering over three days (Aug. 28 - 30, 2011).

MESSENGER's Wide Angle Camera (WAC), part of the Mercury Dual Imaging System (MDIS), is equipped with 11 narrow - band color filters, in contrast to the two visible - light filters and one ultraviolet filter that were on Mariner 10's vidicon camera.

Each image shows a different wavelength of extreme ultraviolet light that highlights a different temperature of material on the sun.

Flavonoids are phytochemicals that boast antioxidant properties, aid the absorption of ultraviolet light and have beneficial effects on skin health.

It found that male mice fed a diet of 10 percent tomato powder daily for 35 weeks, then exposed to ultraviolet light, experienced, on average, a 50 percent decrease -LSB-...]

According to the American Academy of Pediatrics (AAP) policy statement on ultraviolet light, UV damage is cumulative over a lifetime.