Cornell Researchers Precisely Date Wood From Ancient Tomb In Turkey
... the timbers are superimposed on a calibrated time scale and moved until the lines match up, and their knowledge of an earlier climatic event. Previous research has shown that the major second millenium B.C. eruption of Thera, a volcanic island in the Aegean Sea, had global effects that likely influenced c...Gene Discovery Could Overcome Aluminum Barrier To Higher Wheat Yields Worldwide
... he said. "It limits crop productivity on a large scale around the world." Overseas and in this country, about 5 billion acres of acid soil harbor aluminum, he said. "Now that rye's anti-aluminum gene has been located, the goal is to put it to work using biotechnology in wheat varieties worldwide." USDA'...Learning From Birds And Bees: Engineers Study Insects For Ideas On Tiny "Micro Air Vehicles"
...nsects for information about flight principleson a scale this small. Researchers believe aerodynamic principlesgoverning aircraft with six-inch wings may be significantly differentfrom those that have guided aircraft design since the Wright Brothers'1903 airplane. "There may be something about very small......ter."Data is often not collected at an appropriate scale to estimatethe effects of plant quality on herbivore populations." Hunter's study argues for the consistent collection oflong-term data sets, without which such analysis may be close toimpossible. Though Varley and Gradwell did not themselves ma...CTC Visualizations Help Ecologists See The Forest And The Trees
...dividualtree level that are important to the large scale dynamic," explainsDeutschman. He ran hundreds of simulations examining different scenariosas the forests evolved over 1,000 years in 5-year time-steps. The digital output from these simulations was enormous. The technicaland artistic challenge of pr...Tiger Beetles Go Blind At High Speeds
...les are a lot smaller than Michael Johnson. If we scale the speed for body length, we get a much different picture." Considering Johnson is about 6 feet tall (1.83 meters), his 10.35 meters per second becomes 5.6 body lengths per second -- "Obviously impressive," Gilbert said. He then explained the tiger...Biologist Experiments With His Own Front Yard
...ical research is true, but I'mdoing this on a tiny scale for purely personal pleasure," he said. "I would love to see much of Phoenixconverted from Bermuda grass lawns to my kind of lawn -- bringing nature back into your yard is a way tocompensate for the fact that we are so incredibly 'concrete-ized.' ...Microsurgery Made More Accurate With Virtual Measuring Tool
...uched. Although placing a simple two dimensional scale in the frontal- parallel (x-y) plane may facilitat...emonstrated very good performance on a macroscopic scale [Milgram 1997, Drascic 1991], no results have been reported in the literature on precision and accur...Argonne Researchers Develops Simple, Inexpensive Method For Cleaning Industrial Waste Streams
...tries. The process has been demonstrated at bench scale for a wide variety of wastestreams, and scaleup and pilot testing are planned. In other applications ofmagnetic separation, scaleup has been successful. With more than 200 research projects and an annual operating budget ofapproximately $500 million...New Dating Technique May Revise Geologic Time Scale
...of sedimentary rocks could refinethe geologic time scale and provide new insight into global sea levelvariations, according to a study in the March 6 issue of Science. A team of researchers at the University of Toronto and the Universit P.et M. Curie in Paris has developed a method to directly date...Small-Scale Fires Key To Understanding Forest Structure
...hy, arefinding is that variation on a fairly local scale is important and that theenvironment, especially the topography, is key. The researchers examined pairs of aerial photographs from 1941 and 1993,and noted significant changes in the Cub Creek Research Natural Area of theLassen National Forest ......e speed of flow through the coronary arteries on a scale of 0to 3. TIMI grade 3 is a normal blood flow; TIMI grade 1 is almost no bloodgetting through. Quick restoration of blood flow to TIMI 3 saved three lives in a 100 in thefirst month and another five per 100 in the first two years. These patients ha...Invasive Weeds Pose Major Threat To American Landscape
...vasive species, explained that on a plant-by-plant scale theeffects of these plant invaders are often subtle. "It's like metastatic cancer,"he said. "It starts with a single individual or seed and then is carried toother places by people or nature where nodes get established and proliferate,eventually affe......and Nigeria have introduced programs on a national scale to improve emergency treatment of women suffering from complications of unsafe abortion . "Africa is a latecomer to the revolution in reproductive behavior sweeping across the developing world, but is now poised for positive change with respect to...Jefferson Researchers Provide Leads To Potential Parkinson's Treatment
...rkinson's DiseaseRating Scale, which is a standard scale to measure motor abilities, showed asignificant difference between those who received the drug and those who didnot," says Dr. Schneider. He and his colleagues at Jefferson report theirfindings in the June issue of the journal Neurology. The ...Duke Studies Show U.S. Central Plains Vulnerable To Global Warming
... The transient dynamics on thedecades to centuries scale could be very different than the equilibrium changeafter a thousand years of warmer global temperatures. Because climate change may disproportionately affect trees during theirvulnerable early stages as seedlings, graduate student Janneke and...Study Suggests Weekly Hurricane And Rainfall Patterns Are Linked To East Coast Pollution
...ther. We appear to beaffecting global weather on a scale that is comparable to El Nino." The hypothesis is particularly important when applied to hurricanes,because of the destructive potential of the storms. Cerveny and Balling lookedat 50 years worth of hurricane records, which include observatio......tein molecule per 100 million parts of water. On a scale in which 0 refers to no sweetness, 1 refers to tab...sugar or sucrose, then thaumatin is nearly off the scale at 3,000, more than 10 times sweeter than other sugar substitutes like saccharin or aspartame. Bec...French Researchers Breed Flightless Ladybirds As Pest-Killers
...ateat a broad range of creatures, including aphid, scale insects, mites andmealybugs. In tests, the flightless ladybirds have already been successful inkeeping pests off cucumbers and melons. In the US, normal H. axyridis are usedto control pests on crops such as pecans, apples and peaches-which me......nderstanding the folding process and the real time scale of events begins togive you some idea of what you can do to fight diseases like Alzheimer's." Englander's lab performed experiments that convincingly showed thatthese exceedingly fast initial signals are not real intermediates, but simplyrepr...