Experimental radar provides 3-D forest view
...led surface images - even through clouds and local darkness out of reflected radar backscatter. In addition to simply imaging a site, two radar images of the same location acquired from close to the same position in space can be combined together using a technique called SAR interferometry (InSAR). Working ...Marsh-dwelling mole gives new meaning to the term 'fast food'
...red. The star-nosed mole, operating in the Stygian darkness of its burrow, can detect the presence of a tasty tidbit, such as an insect larva or tiny worm, determine that it is edible and gulp it down in half that time. "Most predators take times ranging from minutes to seconds to handle their prey," says Ken......gate. They do this during long periods of complete darkness in the middle of the ocean basin where echoes take 10 to 20 minutes to return. They must have the ability to process low-frequency sounds into images just as dolphins do with high frequency sounds, and they must have remarkable acoustic memories jus...Alcohol 'binges' in rats during early brain development cause circadian rhythm problems
...s and normally begin their activity slightly after darkness sets in. The rats that had been exposed to alcohol began activities slightly before darkness set in. When normal rats - or for that matter, humans and other animals - are in situations without ...New collision looks imminent for B-15A iceberg
...km swath. ASAR can pierce through clouds and local darkness and is capable of differentiating between different types of ice. The sensor has been following the movements of B-15A since the beginning of the year, gathering the highest frequency weather-independent dataset of this part of the Ross Sea. Measu...Exposure to sunlight may decrease risk of prostate cancer
...igmentation than the cancer patients. "Increasing darkness was associated with a trend of decreasing risk of prostate cancer," they said. The scientists also obtained a sun exposure history from each participant so they could track outdoor activity. "Reduced risk of advanced prostate cancer was associated ...Sudden change in social status triggers genetic response in male fish, study finds
...ion, but like all animals, they can't see in total darkness and basically do nothing," Fernald explains, "In some ways, this experiment was more like nature, where a predator comes in and picks off a dominant fish opening up the field for non-dominant animals." Nighttime behavior To observe nighttime beh...Bees solve complex colour puzzles
...scene's average colour, a bit like adapting to the darkness of a cinema. Far more difficult is to recognise the surface or object under multiple lights simultaneously, since adapting to the scene's average colour which was previously thought to be the strategy used by bees won't work." "Our study shows that...A resetting signal keeps circadian rhythm on track in Drosophila fruit flies
...ined in synch even when the flies are plunged into darkness for extended periods of time. This daily resetting signal flows from the morning to the evening cells and maintains a 12-hour difference between the timing of morning and evening activity, without the need for any environmental cues. The Brandeis r...Underwater listening devices yield discoveries about endangered large whales
...here standard visual surveys are often hampered by darkness and bad weather. The article, by Sue E. Moore of the National Oceanic and Atmospheric Administration's (NOAA's) Alaska Fisheries Science Center and three coauthors, describes the use of two types of recorders, one developed by NOAA's Pacific Marine E...Darkness unveils vital metabolic fuel switch between sugar and fat
...o 1 p.m. EST Wednesday, Jan. 18, 2006) -- Constant darkness throws a molecular switch in mammals that shifts t...AMP) as the key molecular mediator of the constant darkness effect, switching mice from a glucose-burning, fat-storing state to a fat-burning, glucose-conservin...One fish, two fish: New MIT sensor improves fish counts
... of the reasons (for the inaccurate counts) is the darkness in the ocean. You don't know what's going on." Current surveying methods depend on highly localized observations taken from slow-moving research vessels, which provide only a small amount of data about a large shoal, Makris said. "It would be like wa...Experts: Expanding biotechnology research in developing countries key to countering bioterrorism
...t generation bio-weapons." "Bioterrorists require darkness to succeed. The global network approach we advocate will shine as much light as possible on this science to increase its use to fight disease and hunger and reduce the risk of it being used with malevolent intent. "In effect we are calling for an ...Earth from Space: Iceberg knocks the block off Drygalski Ice Tongue
...0 metres. ASAR can pierce through clouds and local darkness and is capable of differentiating between different types of ice....Satellite instrument helps tackle mysteries of ozone-eating clouds
...hemicals in the stratosphere, which is in complete darkness during the winter, to freeze and form PSCs that contain chlorine. Now banned under the Montreal Protocol, CFCs were once widely used in aerosol cans and refrigerators and have not vanished from the air. CFCs themselves are inert, but ultraviolet ra...Global atmospheric carbon level may depend primarily on southernmost ocean
...st in the winter, when the Antarctic is covered in darkness and the phytoplankton cannot grow very much. It is important that we understand the impact of this process on atmospheric carbon dioxide through future research."...$1.4 million grant helps professor see the light
...nd the structure of PDE and how it is regulated in darkness and in the light. This latest four-year NIH award will support several new directions in Cote's research program. One project involves a collaboration with Tom Laue, professor of biochemistry and molecular biology, to use novel biophysical techniques...How the adrenal 'clock' keeps the body in synch
...mals with normal adrenals after 2 days in constant darkness indicates a critical dependence of the adrenal on input from the master clock, Oster said. ...Constant lighting may disrupt development of preemies' biological clocks
... normal cycle of 12 hours of light and 12 hours of darkness for the first three weeks of life. The second group was exposed to constant light for the same period. They used a special transgenic strain of mouse with an artificial gene that produces a green fluorescent protein under the control of one of the ge......y low temperatures, and in the cold and continuous darkness of this season, polar stratospheric clouds are formed that contain chlorine. As the polar spring arrives, the combination of returning sunlight and the presence of polar stratospheric clouds leads to splitting of chlorine compounds into highly ozo...