Researchers report initial success in promising approach to prevent tooth decay
...n tact." As dentists sometimes wonder, what would happen if S. mutans is eliminated from the oral biofilm? Does another equally or more destructive species fill its void, creating a new set of oral problems? Shi said nature already provides a good answer. "About 10 to 15 percent of people don't have S. ...Story tips from the Department of Energy's Oak Ridge National Laboratory, October 2006
...tions with a wide range of industrial applications happen faster, more efficiently or both. Using Oak Ridge National Laboratory's aberration-corrected electron microscope, Larry Allard and colleagues at the University of Texas at Austin are analyzing nanoparticles of gold, palladium and their alloys. Gold-b...Learning to live with oxygen on early Earth
...n organic matter depend on chemical reactions that happen as the carbon wends its way through an organism's metabolism. There are two stable isotopes of carbon found in nature--12C and 13C--which differ only in the number of neutrons in the nucleus. By far the most abundant variety is in the lighter, 12C. A...Harvesting machine driving mesquite-to-ethanol potential
... taken the involvement of many people to make this happen andrepresents a good example of university researchers and the private sectorworking together." The initial vision for a mesquite harvester was that of Montey Sneedwith Texas Ethanol Company of Vernon and Ansley's, he said. Frailey wasbrought in,...Vegetables, like people, urged to live up to potential
..." he said. "It's something similar to what would happen with people. You stress people, and people tend to respond more to the challenges in front of them," he added. "In this case, when you stress plants, you actually trigger this genetic response, and the plant will synthesize chemical compounds. You en...Texas researchers casting for answers to stop algae problem in Texas lakes
...in various seasons, Roelke said. "Something must happen in the spring and in the summer that prevents it from growing," he said. "Are there some kind of grazers (micro-crustaceans) out there that are present in the spring and are able to tolerate the toxins that this golden alga produces then can consume ...'Killer' B cells provide new link in the evolution of immunity
...at, according to the current dogma, just shouldn't happen in B cells," said J. Oriol Sunyer, a professor in Penn Vet's Department of Pathobiology and leader of the research team. The researchers determined that these attack B cells account for more than 30-40 percent of all immune cells in fish, whereas p...Why do cold animals make bigger babies?
... temperature at all. Instead, large offspring just happen to be produced by large mothers, who grow large because they require more energy to reproduce in the cold. When they tested the theories simultaneously with their new approach, the team concluded that temperature's effect on reproduction is a bypr...IU, Purdue selected for major NCI biomarker tools initiative
...This is a perfect example of how great things will happen in Indiana when IU, Purdue and the private sector collaborate on life sciences research," said D. Craig Brater, M.D., vice president of IU with responsibility for life sciences and dean of the IU School of Medicine. Four hundred clinical samples wil...Call for global action over continued huge burden of maternal deaths in poor countries
...on women have died of maternal causes. For this to happen in a world where we state that we know what works and that nine out of ten of these deaths are preventable is obscene'....Scientists find popular acne drug leads to depression-related behavior in mice
...ever, the biological mechanism by which this might happen has never been established. "Human studies concerning Accutane and depression have generated conflicting results," said Dr. Michelle Lane, corresponding author and assistant professor of human ecology at The University of Texas at Austin. "Humans h...'Killer' B cells demonstrate evolutionary link between fish and mammal immune systems
...at, according to the current dogma, just shouldn't happen in B cells," said J. Oriol Sunyer, a professor in Penn Vet's Department of Pathobiology. "I believe it is evidence for a very real connection between the most primitive forms of immunological defense, which has survived in fish, and the more advance...Scientists get best look ever at water-life connection
...physicist will tell you that the interaction would happen much faster -- on the picosecond [one trillionth of a second] time scale -- because that's how fast water molecules move. And someone who uses X-rays will give you a different answer than someone who uses nuclear magnetic resonance and so on." "My f...Warming climate may put chill on arctic polar bear population
...gnificantly limited. Similar events may eventually happen in other areas included in the study....Clemson research cleans up with edible oil
...wards the edible-oil source. "Something else can happen to clean up the contaminants," said Murdoch. "Some microbes in the ground subsurface will degrade solvents. The edible oils create the right conditions for those kinds of microbes to flourish, so they seek out the contaminants and break them down. We...Researcher lights the way to better drug delivery
...ic location to be released, and now we know it can happen almost anywhere during endocytosis." The mechanisms, locations and cellular components involved in the release of drugs within a cell had been under debate for several years, Low said. "This is the definitive statement on how drugs are released wit...Insect predation sheds light on food web recovery after the dinosaur extinction
...Cretaceous before the extinction." What made this happen at Mexican Hat? The researchers do not know because to date, it is the only example of high insect-feeding diversity on a Paleocene flora. The heavy insect population did not apparently spread from Mexican Hat and perpetuate through time because the...One-two particle punch poses greater risk for astronauts
...transformation," Sutherland said. "If this were to happen in space, a certain fraction of the astronaut's cells would have a higher risk of going along this initial path to cancer development." The good news, Sutherland said, is that in real space, most of the charged particle hits do not occur that close...ACS news service Weekly PressPac -- August 16, 2006
...s -- the possibility of having photopolymerization happen without light or heat. Neckers, Fedorov and Ermoskin have demonstrated that photopolymers will harden in the presence of the chemical reactions that make lightsticks glow. They propose "remote cure" as a name for the process and cite several possib......o do, and it's how most of the things that need to happen for living organisms get done." Over the past three years he has received $300,000 in funding from the National Science Foundation for his research. What talking proteins have to do with infectious disease is a story that unfolds in the submicro...