Enzyme's "Magic" May Hold Key to Anticancer and Antimicrobial Drugs
...ator To contact scientists available for comment, call the NIGMS Office of Communications and Public Liaison at (301) 496-7301. Experimental Rationale Scientists already knew that topoisomerase II binds to double-stranded DNA, severs it, passes a second DNA double he...Hawaiian Whales Show 'No Overt Response' To Sounds Of ATOC Simulation
...Frankel commented. "Unfortunately, you can't just call a sperm whale into the lab, put on a set of earphones and give it a hearing test. So we're proceeding very cautiously." ATOC-Marine Mammal Research Program scientists began gathering "baseline" data on whale behavior and distributions off the no...Nitric Oxide May Hold Key To First Treatment For Deadly Form Of Malaria, Duke Scientists Report
...st of diseases, as wellas the cumulative damage we call aging," Stamler said. "NO hasa similar deleterious function, which we call nitrosative stress. When acell can't contain the flow of SNO, the nitrosative stress can well be the...Nitric Oxide Found To Control Cells By Turning On Genes; Suggests New Role In Health And Disease
...st of diseases, as wellas the cumulative damage we call aging," Stamler said. "NO hasa similar deleterious function, which we call nitrosative stress. When acell can't contain the flow of SNO, the nitrosative stress can well be the......n structures. The main themes--what the scientists call "syllables" --are composed by the higher structures, but the individual notes get filled in by the lower brain regions. This sort of hierarchical organization of the brain's motor functions had long been supposed by neuroscientists but never demonstr...Impact of Meteorites, Drop in Sea Level Caused Mass Extinctions 65 Million Years Ago
...rite or the change in sea level -- what scientists call "background extinction." "Some scientists thought the extinctions were due solely to the impact of the asteroid or comet, others thought they were due to the sea level change, and still others thought that background extinction accounted for ...... to the nest chamber, making a distinctive "chirp" call along the way. Once in the nest, the biologists o...ndividuals to enhance what evolutionary biologists call 'inclusive fitness.' " Apparently naked mole-rats do not "dance" to give directions behaviorally, as......grasps the concept that everything has a name. We call it the 'Adaminsight' because children are suddenly motivated and excited to learn thelabel for every animal, every toy." The research was part of the MacArthur Longitudinal Twin Studyfunded by the John D. and Catherine T. MacArthur Foundation...Florida Company Using ORNL Technology For Revolutionary Wheelchair
...egree free wheeling capability. Cybertrax plans to call thewheelchair the TransRovr (TRANSportable Roving Omnidirectional VehicleReplacement). "I like to explain it by telling people this wheelchair is perfect forparallel parking," said co-inventor Stephen Killough of ORNL's Robotics andProcess Systems Di...The CIA Would Like To Know What Scientists Are Seeing Over The Rainbow
...ere to stay, says Ried. "I receive about one phone call a day from people who want to learn the technique," he says, anticipating the technology will be common in diagnostic and research laboratories in the coming years.......nutrients werenot being consumed, the Medfly might call upon nutrient reserves that normallywould be used for body maintenance and repair. That notion is supportedby the fact that the early-life surge in the death rate is not seen in sterileprotein-deprived females. "It's likely that this is a particular...President's Budget Proposal Cuts R&D By 14 Percent By 2002
...ere in FY 1994. Outyear projections in the budget call for additional cuts, beyond those that have already occurred. The AAAS analysis of the President's latest balanced budget plan projects a 14 percent cut in total R&D funding between FY 1997 and 2002, after adjusting for inflation. Nondefense R&D wou...Fighting Wheat Scab In New York State
...g this year in New York, and preliminary estimates call for excellent yields of New York winter wheat in 1997. In the Midwest -- North Dakota, South Dakota and Minnesota -- yield and grain quality losses amounted to nearly $1 billion in 1993 and ranged from $200 million to $400 million annually since then...Evolution Re-Sculpted Animal Limbs By Genetic Switches Once Thought Too Drastic For Survival
...lopmentalbiology, or "evo-devo," as its proponents call it, in which scientists study thepatterns of gene expression in embryos to peer backward in time. In the past fewyears, researchers have made remarkable progress in identifying genes thatspecify gross changes in body shape early in development. But o...New Gene May Intensify Breast Cancer Growth
... The NHGRI researchers found the gene, which they call AIB1 (amplified in breastcancer-1), by searching the long arm of chromosome 20 for genes whose expressionand copy number are elevated in breast cancer. The gene is expressed at lowerlevels in normal human tissue. AIB1 is the most recently identified ...Study: Device Prevents Epileptic Seizures, Doesn't Damage Hearts
... "In the majority of cases, you don't need to call 911," Vaughn said."Turn them on their side, and st... or if the person has hurt himself. You shouldalso call if it was a person's first seizure or if he or she asks to go to thehospital." "Don't put a ...Female Adolescents Need Calcium During 'Window Of Opportunity'
...oups 9 to 13 and 14 to 18, the new recommendations call for 1,300 milligrams of calcium per day. Distingui... extent, how much more calcium the recommendations call for is a moot point, because nine out of 10 teen-age girls don't meet the current RDA. "We're pushin...A New Biochemical Link Established Between Stress, Sex And Dominance
...t prove themselves Fernald and his students call them "territorial" experience a dramatic transformation, switching color within minutes from a camouflaged sandy gray to bright blue or yellow. Within days, they put on weight, mature sexually and sport a threatening, warpaint-like stripe next...Hunt For Early Heart Attack Genes Begins
...ple interested in enrolling as participants should call Mary LouKlimek, M.A., R.N. at 1-888-920-9100 or 212-327-7445 for more information. Allinformation is kept confidential. People accepted into the study will beoffered free blood cholesterol and lipoprotein analysis and information aboutmodifying the...Photocatalytic Air Cleaning System Promises To Help Allergy Sufferers
...available with this story. For information, please call News & Public Affairs photography at 352-392-9092....