Why damaged DNA gets a case of the bends
....gov ) is a DOE Office of Science laboratory that solves complex problems in energy, national security, the environment and life sciences by advancing the understanding of physics, chemistry, biology and computation. PNNL employs 3,800, has a $600 million annual budget, and has been managed by Ohio-based B...Noah's modern ark: The role of ART in conserving endangered species
...lige scientists by going through the motions. ART solves this problem neatly. One of Dr Wildt's successes has been the giant panda programme that he has been leading, which involves five Chinese breeding facilities, four North American zoos and more than 65 scientists, representing seven disciplines, on th...New computational tools to aid in protein research
...w protein structure determination algorithm, which solves complex algebraic equations that relate the experimental data to the protein's geometry. "Our algorithm requires less data and yet the resulting protein structures are incredibly accurate," says Donald. Unlike previous techniques, Wang's equations ca...Chemical gradient steers nerve growth in spinal cord
...n the Dec. 12, 2003, issue of the journal Science, solves a long-standing scientific mystery. It may also help restore function to people with paralyzing spinal cord injuries. "This is the first guidance mechanism that regulates growth of nerve cells up and down the spinal cord," said Yimin Zou, Ph.D., ass...Physics tip sheet #36 - July 30, 2003
...cently published in Physical Review D examines and solves for the first time this so-called submarine paradox by using a general relativistic extension of the Archimedes law of moving bodies to show that the submarine will sink. Journal article: http://link.aps.org/abstract/PRD/v68/e027701 Physical Revie...Virginia Tech inventions, creations can improve lives
... and uninterruptible power supplies. The invention solves the problems of voltage loss, stress during switching, and cost. Xunwei Zhou, a Ph.D. graduate in electrical engineering now at Linear Technology, and Lee received a patent for a "Current sensing and current sharing voltage regulator module (VRM)" (6...Speedy elephants use a biomechanical trick to 'run' like Groucho
A study published in the April 3 issue of Nature solves a longstanding mystery about elephant speeds by clocking the animals at 15 miles per hour. That's faster than reliable observations of 10 mph top speeds but slower than speculations of 25 mph. But do fast-moving elephants really "run"? Even at fast s...Rockefeller, Weill Cornell researchers find link between estrogen, brain structure changes
...Ewen concludes. At its most fundamental, the study solves several neurobiological mysteries that were seemingly unrelated, says co-author Keith T. Akama, Ph.D., a postdoctoral researcher in McEwen's laboratory. It answers the question of why estrogen receptors, through which the hormone stimulates the cell,...Diamond film may enable critical new sensors for bioterror
... long-standing problem," Hamers says. "And diamond solves it." Biological sensors of the future will need to operate at the interface of biology and modern microelectronics. Not only must those sensors possess the ability to detect biological molecules of interest, they will also need to take advantage of ...Brain imaging study sheds light on inner workings of human intelligence
...and the process through which the mind reasons and solves novel problems, an ability known among psychologists as fluid intelligence. The results may help researchers to understand the neural basis of individual differences in cognitive ability, according to an embargoed news release issued this week by Nat...Purdue scientists lead $5.9 million plant study to improve products
...dreds of samples a day." The infrared spectroscopy solves one of the researchers' problems, but it can't explain how the wall chemistry was altered in these mutations, Carpita said. So the investigators will use a variety of other methods to determine how simple sugars form, how they join to become polymers...Scientists identify a new kind of genetic problem in muscular dystrophy
...ws nearby genes to go into overdrive. The finding solves a decade-old riddle about the cause of this disorder and may ultimately lead to the first effective treatments. The study found that abnormally short strings of repeated DNA sequences on chromosome 4 interfere with the function of a protein complex t...New technique boosts potential for growing stem cells
...tional method) can hold. Zandstra's technique also solves the problem of stem cells that stick together in culture, interfering with their ability to replicate and specialize into different cell types. He encloses the cells in polysaccharide capsules designed to be outgrown when the cell "stickiness" has di......s down oxygen radicals," Ames said. "Each chemical solves a different problem - the two together are better than either one alone." Ames and Hagen have long had an interest in mitochondria as they relate to aging, and they were intrigued by a 1999 Italian study that showed acetyl-L-carnitine, when fed to ol...Scientists to examine DNA of George Washington trees
...individual trees especially the Washington Trees solves another problem for him. Those 13 historically important trees are nearing the ends of their normal expected life spans. Last summer, cuttings were taken for rooting, and buds gathered for grafting from the trees to produce genetically identical clon...NU scientist finds answers in Antarctic icefish
...diseases and conditions. The Antarctic fish model solves this problem and permits construction of libraries enriched in blood cell formation genes. Potential discoveries using the Antarctic system include receptors and factors that regulate red and white blood cell development, growth, and differentiation....Vitamin deficiency may exacerbate motor neuron disease
...snugly, he explained. The finding -- which solves a three-decade-old scientific mystery -- provides a new research pathway for studying how proteins attach to one another and might also have clinical implications for people who have SMA, said Dreyfuss. “These SMN target proteins obtain th...Single amino acid mutation dramatically alters direction of a molecular 'motor'
...surprising that a single mutation can do it. This solves the question of the mechanism of directionality for Ncd and probably applies to other motor proteins as well." From the time Endow discovered Ncd in fruit flies about 10 years ago, the little motor has been an enigma. At the time, it was the first ...UF researchers: technique cuts pollution from burning treated wood
...sor of environmental engineering. "Our technique solves two problems: It reduces emissions and leaching," said Wu, the lead investigator on the team, which will present its findings later this month at the American Chemical Society's annual meeting in Washington, D.C. Wood treated with chromated copper ...Lung ailments come with the paycheck for wide swath of workers
.... "It's often a very simple technological fix that solves these problems," Beckett says. Asthma can also be a problem for roofers. As part of the sealing process, roofers now use polyurethane foam, which can provoke asthma. The same material in paints is the reason why auto-body shops are home to the large...