Electronic dental anesthesia helps allay needle injection pain
... and struggling dominated their behavior during the procedure," Wilson said. "But even when a person islightly sleeping, the body knows when pain is present. Wewould still see a rise in heart rate during a painfulsti...Mountain Lake Hotel places environmental book in rooms
...gs to a train whistle necessitating prudence inthe behavior of those who can change the fate of the world. Wallace has earned many awards, including a Senior U.S. Scientist Award from theAlexander von Humboldt Foundation and a Fulbright award to lecture in Egypt andYugoslavia. He was an advisor to the U.S. De...Worms will never taste the same: a new study examines how insecticides influence birds
...osphate insecticide can produce a lasting changein behavior among free-ranging birds. Even if the toxin is no longer present, wehave observed that these birds will continue to avoid insects they experiencedas toxic."......ially,they also were much quicker to resume normal behavior once the shocks wereremoved -- they learned faster. The final experiment tested spatial learning. The mice were put into a pool ofwater that had a hidden platform where they could climb out of the water. Thetransgenic mice learned to find the platfor...Mercury can jump barrier that keeps toxins out of brain
...voussystem. "Considering the importance of complex behavior in the life of fish, and thewell-known deleterious effects of mercury upon the nervous system, thetoxicological significance of this uptake route needs to be assessed," saidClaude Rouleau, Ph.D., a research scientist at Environment Canada's National ...Understanding serotonin receptors can speed treatment for depression
...water. "We want tosee if we can prevent depressive behavior by studying how to prevent rats fromincreasing their 5-HT1b receptor levels when they are under mild stress, such asswim stress," he adds. This can be seen by how rats respond to the stressbehaviorally and by measuring the 5-HT1b receptor levels....Scientists find genetic links for deadly type of breast cancer
...thor on the study. "To understand why theclinical behavior is so different, we need to look for changes at th...that these genes interact todrastically change the behavior of normal mammary cells." Merajver added that additional research with more patients will be needed ...Fluorescent signaling by immune cells
..., however, only limited conclusions about the real behavior ofthe analyzed cells in the living body since decisive factors, like influences ofthe natural environment and the cellular milieu, cannot be mimicked in vitro.Therefore, there have been many attempts to study T cells directly in vivo. Thisapproach re...Male courtship pheromone identified
...hat there may be many other pheromones that affect behavior and matingin many animal species, including humans. "It's very unusual in nature to find a pheromone that male vertebratesuse in courtship and mating," said Lynne Houck, an associate professor ofzoology at Oregon State University and co-princ...Warner-Lambert Company gift creates bioinformatics program
...idual components of a livingcell to the integrated behavior of the whole organism. "We are very pleased that the U-M is willing to begin a graduate level educationand research program in this important area," said Wendell Wierenga, Ph.D.,senior vice president for Worldwide Pre-Clinical Research, Development a...USGS studies wildfire ecology in the western United States
...ury of research to understanding what controls the behavior of forest fires, and how natural and prescribed fi...eady been used on several occasions to predict the behavior of natural fires. From each such application, further refinements are made. In these initial tests, ...Roundworms provide clues to human kidney disease
...colleague Maureen Barr had been studyingthe mating behavior of the tiny roundworm, Caenorhabditis elegans , whenthey found that a gene crucial to roundworm mating strongly resembles a geneinvolved in polycystic kidney disease. "We set out to study how genes control neurons that control behavior,"Sternberg s...Yale scientists find evidence healthy animals detect and avoid sick animals
...d that many kinds of prey animals can change their behavior andeven their body shape when they smell nearby pr...ive.In both cases animals appear to be able to use behavior to reduce the chancethat they will be harmed or die."...Stressed-out mice offer clues to depression, anxiety, anorexia
...ein gained less weight and showedmore anxiety-like behavior than littermates that could produce the protein. "These mice exhibit anxiety-like behavior all the time---not just in response toan external stressor," says Audrey F. Seasholtz, Ph.D., a seni...Researchers characterize mollusk insulin gene, find unique peptide
...nderstand the chemical cuesthat trigger egg-laying behavior in Aplysia. "Like studying genetics in fruitflies...llusks -- make nice model systems forunderstanding behavior at its simplest," he said. "The animals are easy tostudy and they have readily accessible cells." I...African ants' self-defense takes a heavy toll on hosts
...ur field results suggest that this selfish pruning behavior has evolvedbecause it increases the life span of C. nigriceps colonies, even though itremoves all the host tree's flowers and stops the tree from reproducing,"Stanton said. "There can be a fine line separating a mutualistic interaction from aparasiti...Counting elephants by monitoring sounds
... will provideinsights to aspects of the elephants' behavior and ecology that are available inno other way." C...s have been able to linkan elephant's calls to its behavior and circumstances by watching simultaneouslyrecorded videotapes. Other elephants' reactions to a ca...Mechanism found that appears to keep body tissues together
...m abruptly ripping apart." The sluggish separation behavior could be a result of multiple adhesive contactsbetween different parts of the proteins, Leckband said. The scientists haveidentified at least two configurations in which the proteins bind, and thesemultiple interactions could retard or prevent the a......sider C. elegans to have a"brain," and it exhibits behavior and is even capable of rudimentary learning.Its life starts with embryonic cleavage, it grows and develops, ages and dies.All of these functions are controlled by genes. The worms are no more than onemillimeter long and live only two or three weeks. ...Changing children's diets today could reduce bone problems 70 years from now
...hildren. "The goal will be to implement changes in behavior over a short periodof time that will have long-lasting effects," she adds. In addition to monitoring dietary changes through interviews and throughrecord-keeping by children and families, the program has access to sophisticatedmeasuring equipment in...