Science class experiment reveals vitamin B12 secret
...lowing lab dishes did not light up. These stubborn dark spots revealed bacteria missing key genes needed t...efects in bacterial mutants that, instead of being dark spots on the glowing lab dish, were even brighter than their normal counterparts. His findings enabl...Experimental drug reverses key cognitive deficits, pathology in Alzheimer's
...la--the mice were required to learn to associate a dark chamber with an unpleasant shock. Analyzing the brain tissue of the untreated and treated mice, the researchers found that treatment with AF267B reduced levels of both pathological plaques and tangles in the cortex and hippocampus, but not in the amy...New research shows bats have complex skills to deal with 'clutter'
...a late night snack. For a bat flying around in the dark searching for a meal of insects, the "clutter" of things like leaves and trees could mean missing out on a tasty morsel of dinner altogether. A bat finds its way around with sound rather than sight. Using a sensory process called echolocation, the ...Through a satellite darkly: Night views of European seas improve ESA ocean heat map
The Mediterranean looks better in the dark - at least in the view of an ESA-led effort to use satellites to take the daily temperature of Europe's seas. A switch to data acquired at night is one of several improvements undertaken to enhance reliability and reach of Medspiration project output...Sea coral's trick helps scientists tag proteins
...proteins in corals because they do not glow in the dark like fireflies and jellyfish. The corals' native g...changes in some proteins, which could convert from dark to light or change colors. Later, the Russian scientist and his colleagues discovered that the GFP-l...Ocean acidification threatens cold-water coral ecosystems
...re found at depths of three miles or more in cold, dark waters throughout the world's oceans. Some cold-water coral reefs are home to more than 1,300 species of animals, a diversity rivaling some better known tropical coral reefs. Until now, scientists believed bottom trawling a commercial fishing method...Resident birds display migratory restlessness
... migratory period under the nearly equal light and dark conditions of their native habitat, and a subset remained under these conditions for a year and a half. A control group was exposed to the natural seasonal light fluctuations of southern Germany. Helm and Gwinner recorded the birds' nocturnal movemen...Blood pressure medication may revolutionize treatment of Marfan syndrome
...dered their options during what Dietz calls "those dark days," some, including Dietz himself, began to call into question the structural integrity of their understanding of the syndrome. One question in particular gnawed at Dietz: How could a disease with such a complicated phenotype - overgrowth of bones...Controversial findings help explain evolution of life
... recover from photonic damage. The lifetime of the dark state is not long a nanosecond is one billionth o...ns to happen, Kong said. And the existence of this dark state raised questions about how life ever could have begun, given that the genetic carriers were so...Pollutant haze heats the Arctic
...ect is most pronounced in Arctic winter when it is dark and there is no sunlight. The Arctic winter is whe...nversion' for months at a stretch during the long, dark winter. The difference is that here [in Salt Lake] the pollution source is local, whereas in the Arc...Plants tell caterpillars when it's safe to forage
...atile compounds from corn and varied the light and dark conditions for both corn and insect. Corn infested... were added. And when plants were introduced under dark conditions, about 30% less larvae were found hiding than were found in the dark without plants. Fin...Ecologists home in on how sperm whales find their prey
...they are highly successful at locating prey in the dark ocean depths. The sperm whale is the world's largest deep-diving toothed whale, feeding mainly on squid, but until now little has been known about the timing of prey detection and capture during dives. "Due to the difficulty of observing sperm whales...Tufts researchers are keeping track of vitamin K: Research summary
...uinone. Synthesized by plants, phylloquinone makes dark green leafy vegetables the richest source of vitamin K in the American diet. Lab Director Sarah Booth, PhD, and her USDA colleagues, for the first time reported data on the content of the two other major types of dietary vitamin K -- menaquinones and...Potato blight pathogenicity explained by genome plasticity
...dwide today. Infected plants are characterized by dark lesions on the stems, leaves, and tubers; damage to the tuber surface allows other fungi and bacteria to enter and destroy the core, often resulting in a foul odor. P. infestans is related to approximately 65 other pathogens that cause similar dam...Discovery of genetic mutation in Florida beach mice suggests extinct mammoth had light and dark fur
...yscus polionotus, mice living on the mainland have dark coats, which help them blend in with the vegetation and avoid their main predators--owls, hawks and herons--that hunt prey by sight. But on five barrier islands off the Florida Gulf coast and three off Northern Florida's Atlantic coast, geographic is...UT Southwestern researchers find gene mutation that leads to 'broken hearts'
...ed a fruit fly so that the heart would glow in the dark and found a new type of malformation, completely unexpectedly," said Dr. Eric Olson, chairman of molecular biology at UT Southwestern and senior author of the study appearing in today's issue of Science . "We coined the term 'brokenhearted' for this...Iowa State researchers convert farm waste to bio-oil
... it produces vapors that are condensed to a thick, dark bio-oil. Preliminary tests indicate every kilogram of dried mixture produces .2 to .5 kilograms of bio-oil depending on the operating conditions. Sadaka said the energy content of dry manure is 12 to 18 gigajoules per ton. Canada's Office of E...Species unique to tidal marshes face threats
...believed to be an advantage because it matches the dark color of the soils often found in tidal marshes. Why endemic tidal marsh species seem to be largely restricted to North America--which has 24 of the worldwide total of 25--is not clear. Although it could reflect differing taxonomic practices in diffe...Study documents marathon migrations of sooty shearwaters
...ng visitors who may have trouble grasping that the dark swirling clouds over the water consist of seabirds. Scientists have long known that sooty shearwaters breed in New Zealand and Chile and migrate to feeding grounds in the Northern Hemisphere. But the details of this remarkable transequatorial migrati...Boston -- In the long, dark days of winter, gardeners are known to count the days until spring. Now, scientists have learned, some plants do exactly the same thing. Addressing scientists here today (Aug. 9) at a meeting of the American Society of Plant Biologists, University ...