Fossil mayflies can be used to 'weigh' ancient atmospheres
... 20 to 30 times a second to rise in the air. They rest their muscles and "parachute" downward, then fly upward again and again in hopes of finding a reproductive partner. Most mayfly species live only a few days as adults, but the occasional insect that isn't eaten by predators or otherwise recycled so...Laser light from Free-Electron Laser used for first time in human surgery
...ount of material from the center of the tumor. The rest he cut out using a scalpel. Ultimately, Vanderbilt neurosurgeons hope to use the University's free-electron laser with acomputer-assisted guidance system to remove tiny brain tumors near vital nerves and arteries that aretoo risky to pursue with con...Creatine may improve performance during short bursts of activity
... two-and-a-half minutes to rest before starting the next lap. During the 25-yard laps, each swimmer had one minute to complete the lap and recover. The nine men who received creatine improved their time ...Study suggests newer oral contraceptives may be less harmful for women smokers
...ptives, including 23 smokers and 23 nonsmokers, at rest and during mental and physical stress. Researchers induced stress by having volunteers perform rapid calculations, prepare and present short speeches and sit with a plastic bag of ice held to their foreheads for two minutes. "Among smokers we found ...ESL classes may help deliver public health messages
...ality rates are likely to approximate those of the rest of the population," he said. Elder and colleagues' results appear in the February issue of Health Education & Behavior. Their study was part of a federally-funded effort to prevent heart disease in low-literacy populations. "Results from thi...Last unidentified sport fish in North America gets a scientific name
...ber of rows of scales. "Our research should put to rest any questions about whether it's a valid species or merely a variant of one of the other species," Burgess said. "It's pretty much a slam dunk as far as we're concerned, and the scientific community already is aware of the fish." As with all wildlif...Genes pertaining to 'maleness' evolve more rapidly than their non-sexual counterparts
...of which 18 pertained to male reproduction and the rest did not. They found that 11 of the 18 male genes evolved much faster than the average rate of evolution of the non-sexual genes. Wu thinks that the rapid rate of evolution of male genes is indicative of the sexual behavior of the species. Chimps...Heat can help maintain muscle mass in immobilized limbs, study shows
...s immobilized because of bone injury or during bed rest as well as for astronauts, whose muscles often atrophy in the weightlessness of space, said Scott Powers, a professor in UF's department of exercise and sport sciences. "There are all kinds of conditions in which patients can't exercise," Powers s...Study shows industrial hog operations appear to impair health, life quality among neighbors
.... Just over 90 percent were black, and most of the rest were white. Average annual family income was about $20,000. By far the biggest differences between the communities were seen in the quality-of-life questions, researchers found. More than half of respondents in the hog community, as compared to fe...Playing the odds: Can you stop abusing alcohol at 10 years and be OK?
...ts of what he can do in a day, in a joband for the rest of his life." She added: "They're also very important to help the rehabilitationtherapist guide rehabilitative efforts." Beatty's study compared the test results of recovering alcoholics who were recruited from drugrehabilitation centers in Oklahoma...UF researcher develops high blood pressure drug using gene therapy technique
... the beta1 antisense works and how it affects the rest of the body aside from the cardiovascular system. "This research is introducing a new paradigm, a new therapeutic approach to treating high blood pressure, and if it's proven to be useful in humans this obviously is extremely important and it's gr...Marine biology course uses Antarctica as its classroom
...rine animals. Although seemingly remote from the rest of the world and strikingly different, the course ...circulation does indeed effect what goes on in the rest of the world." After a month of study in Antarctica, students will return home this month....Concorde to blame for missing pigeons?
... around a third did not return to England, and the rest were late. Hagstrum suspected that the four races he studied had one thing in common: the birds had crossed the path of infrasonic shock waves generated by Concorde's sonic boom during supersonic flight. To find out, he compared the birds' predicte...Athletes take note: Not all energy bars built the same
... corn syrup and fructose.) The rest of the bar was comprised of 30 percent fat and 30 percent protein. "The composition of this bar may have been responsible for the diminished blood glucose response," Hertzler said. ...Creating a standard spectrum of smell
...l responsible for the smell). This means that the rest of the consumers will think it smells too piney," said Friedrich. "That's a problem." Using a selective and sensitive bioassay for smells based on gas chromatography olfactometry, called CharmAnalysis TM, Friedrich and Acree have investigated the co...Researchers identify unique circadian rhythm photoreceptor
...ological clock that governs sleep and wakefulness, rest and activity, body temperature, cardiac output, and many other functions. In an article published in the March 30, 2000 issue of the journal Nature , Rosbash, Hall and Patrick Emery at Brandeis University, and Ralf Stanewsky of the University of ...New UNC analysis of N.C. accident records shows growth in motor vehicle-deer crashes
...rivers in single-vehicle crashes are male, and the rest are female," Reinfurt said. "In deer crashes, 57 percent of the drivers are male, and 43 percent are female." North Carolina's deer population now stands at about 950,000, according to Scott Osborn, big game program coordinator at the N.C. Wildlif...Study of rats brains indicates brain continues to grow after puberty
...a primary sensory region. How this relates to the rest of the corpus callosum, we don't know."......hat individual ultimately shares the meat with the rest of the group. Dr. de Waal examined how same-sex pairs of brown capuchins in a test chamber cooperatively work for food when separated by a mesh partition. Two transparent food bowls, one containing apple slices, were positioned in front of the mo......ith a few powerful swimming strokes, then made the rest of the descent mostly in a relaxed glide. "Basically, they're turning the motor on and off in the course of the dive, and that enables them to reduce oxygen consumption by 10 to 50 percent compared with what they would need if they swam all th...