Polymer gel can block toxic leakage problem in gene therapy
...s mixture "could reduce virus dissemination by two orders of magnitude (100 times) and significantly increase transgene expression in solid tumors," their study reported. In comparative tests on breast tumors implanted in live mice, the authors noted that two mice in the group injected with adenoviruses wit......d by a Google search, to ask whether they screened orders for DNA sequences that might pose a bioterror thre...re publicly available, so screening gene-synthesis orders for potential bioweapons shouldn't pose a huge challenge. Indeed, a company called Craic Computing,b...Fifth edition of the Glossary of Geology published
...aryland and Virginia are subject to sales tax. All orders must be prepaid. Please make your check or money order drawn on a U.S. bank in funds payable to the American Geological Institute. AGI also accepts VISA and MasterCard. Orders are sent by UPS Standard Service, and take two to three weeks for delivery...New discovery: If it weren't for this enzyme, decomposing pesticide would take millennia
...e half-life of the pesticide is longer, by several orders of magnitude, than the half-lives of other known environmental pollutants in water," Wolfenden said. "The half lives of atrazine, aziridine, paraoxon and 1, 2-dichloroethane, for example, are five months, 52 hours, 13 months and 72 years, respectivel...Based on body size, bacteria and elephants have similar metabolism, ecologists find
...and have body masses differing by no more than 6-7 orders of magnitude about the difference in body mass be...ily and whose body mass difference exceeds the 6-7 orders of magnitude range, the researchers find that the small organism consumes about the same amount of e...A study of the ectomychorrizal community amongst Quercus rubra L. plantations
...s of macromycetes were studied; being grouped in 7 orders (Agaricales 60%, Russulas 18%, Boletals 14%, Polyporals 4%, Pezizales 2%, Cantharelles 1% and Phalalles 1%). The mature plantations, apart from showing a greater specific wealth, have proved to be more homogenous amongst each other than the non-matur...Using computers and DNA to count bacteria
...pristine soil, exceeding previous estimates by two orders of magnitude. When we examined the populations levels in metal-contaminated soil, we found the bacterial genetic diversity was reduced more than 99.9 percent," lead author Gans added. The Los Alamos team used a technique known as DNA re-association, ...Comparative chromosome study finds breakage trends, cancer ties
...pread origin and diversification of most mammalian orders after the K-T extinction, due to exploitation of new ecological niches, may have facilitated isolation and opportunities for the fixation of karyotypic differences," said Murphy, a professor of veterinary integrative biosciences. The K-T extinction o...Bacterial cooperation as a target for anti-infectious therapy
...hat the evolution of bacterial resistance would be orders of magnitude slower than in the case of antibiotics. The authors suggest an interesting interpretation. When a drug targets global properties of infections, the units of organization potentially resisting that drug are precisely the infections, and n...High fidelity keeps human DNA assembly line humming
...al that holds the blueprint for life. DNA dictates orders to RNA to make proteins, which give a cell its identity. Mistakes in RNA synthesis can lead to cancer or can support the life cycle of an invading virus. Researchers consider control of RNA synthesis to be a huge issue in human health. It is also the...... Using microarray data alone, they determined the orders in which genes function in a particular pathway in that organism. The protein kinase A (PKA) signaling pathway occurs when the organism encounters starvation. The pathway enables the single cells to combine into a multi-cell organism. "We pretended w...U. of Colorado study shows early Earth atmosphere hydrogen-rich, favorable to life
...gen from Earth's early atmosphere was probably two orders of magnitude slower than scientists previously believed, said Tian. The lower escape rate is based in part on the new estimates for past temperatures in the highest reaches of Earth's atmosphere some 5,000 miles in altitude where it meets the space ...Ophthalmologists and physicists team up to design 'bionic eye'
.... It operates in brightness levels that span eight orders of magnitude, meaning it can detect both dim objects and those 100 million times brighter, "from moonless night to bright day," he said. It may seem counterintuitive that as it gets processed by the visual system, the signal travels from the back of ...Researchers reveal the infectious impact of salmon farms on wild salmon
... lice production from the farm we studied was four orders of magnitude - 30,000 times - higher than natural. These lice then spread out around the farm. Infection of wild juvenile salmon was 73 times higher than ambient levels near the farm and exceeded ambient levels for 30 kilometers of the wild migration...Introduced foxes transformed vegetation on Aleutian Islands from lush grasslands to tundra
...y of breeding seabirds on fox-free islands was two orders of magnitude higher than on fox-infested islands. The resulting difference in nutrient inputs was reflected in soil phosphorus levels that were more than three times higher on fox-free islands. The vegetation on the islands also showed significant di...Harvard, Texas A&M scientists develop new laser
.... This boosts the gain for the Raman laser by five orders of magnitude, as compared to conventional Raman sources, in which the resonance had to be avoided because of strong absorption." In addition to being more efficient, the device is also very compact. Despite its small size, however, it packs a powerfu...Asian interest provides opportunities for US hard white wheat
...ers the ability to buymultiple classes and combine orders of other crops on a single vessel. The Phillippines buy mostly from the United States and Canada, but somefrom Australia. Western-style bread is more popular than in the othercountries and noodles are less popular. They too like the one-stopshoppi...Tiny particles could solve billion-dollar problem
...th TCE molecules and improve efficiency by several orders of magnitude over bulk palladium catalysts." TCE, which is commonly used as a solvent to degrease metals and electronic parts, is one of the most common and poisonous organic pollutants in U.S. groundwater. It is found at 60 percent of the contaminat......sts, and thereby increase compliance with doctors' orders to have such tests performed. The second device, a biologically inspired "gripper," mimics the way hungry California sea slugs in Chiel's lab grasp seaweed in its many highly slippery forms. The prototype consists of a four-inch, ball-like device, ......improvements will boost the X-ray power by several orders of magnitude. Once this feat is achieved, this novel research tool will open up new prospects in several areas of physics, biology and materials science. ...