University of Chicago scientist wins prestigious Balzan Prize
... runs at a speed dependent on generation time: the shorter the generation, the faster the clock. So, for example, the clock runs five times as fast in rats and mice as in monkeys and man. This discovery has led to a better understanding of divergence times in evolution. He has also been influential in showin...Women who drink may be at greater risk of cardiovascular complications than men
...k a lesser amount of alcohol than men do, or for a shorter amount of time, to produce the same degree of damage - is referred to as "telescoping." "Additionally," said Bernardy, also the first author of the study, "I think that this work adds to growing evidence that there are subtle differences in the cardi...Jefferson and Brigham and Women's researchers find blue light important for setting biological clock
...dy's natural biological clock is more sensitive to shorter wavelength blue light than it is to the longer wavelength green light, which is needed to see. The discovery proves what scientists have suspected over the last decade: a second, non-visual photoreceptor system drives the body's internal clock, which...Telltale prostate cancer protein key to breast cancer, too
...patient outcome. Patients with higher levels had a shorter disease-free interval after surgery, lower overall survival, and a higher probability of death due to breast cancer." At the end of 10 years, about 25 percent of the patients with high EZH2 levels were alive, while 59 percent of those with low level...Modifier gene controls severity of neurological disease in mice
...er protein. As a result, the B6 gene is 20 percent shorter than the normal mouse or human gene. "The B6 mutation doesn't cause disease by itself, but produces a genetic susceptibility to mutations in other genes," Buchner explains. Mice with two copies of the B6 variant of the modifier gene had just 5 perce...Researchers find a pattern in evolution of lizard groups
...connecting species indicate older branching, while shorter ones indicate more recent speciation. People have been studying these patterns with fossil evidence for some time, but there is not much of a fossil record for lizards and many other terrestrial groups. I think the results will help biologists unders......u'll hear that the song is really composed of much shorter sounds," Gentner said. "We call these sounds 'motifs,' and to produce a song, the bird will sing the same motif a few times, then switch to a new repeated motif, and then another, as long as he can keep it going. When male starlings sing, they might ...Physics tip sheet #36 - July 30, 2003
...ed. Observers on land should see the submarine get shorter and denser, causing it to sink. But the sailors on board would see the water getting denser, and the sub should float. A paper recently published in Physical Review D examines and solves for the first time this so-called submarine paradox by using a ...Busy weeks ahead for high-flying students
...the main campaign flights, they will also fly on a shorter five-parabola familiarisation flight. Throughout this flight the students will be safely buckled into their seats in the front cabin area. Jelly balls and moths The students have already had to work hard to get to Bordeaux. After two selection ...First descriptions of Indiana bat maternity roosts in the southern US
...forest, while alternative roost trees were usually shorter than the trees around them. "Research has shown that maternity roosts are often exposed to sunlight, and that increased temperature inside roosts can speed the development of the young," said Loeb. "Sun exposure may be particularly important for the ...Changing focus of traditional hospital 'rounds' improves patient care
...ur work processes may also have contributed to the shorter stays, improved communication also increases patient and employee satisfaction."...Telomere shortening may be early marker of cancer activity
...de and age, telomere DNA is lost and telomeres get shorter and shorter. The new study suggests that telomere... of the cases, there was evidence of significantly shorter telomeres in precancerous lesions compared to normal tissue. The FISH test involves labeling telomer...The science of summer haircuts
...e this excuse to delay a haircut. --Of course, shorter hair makes it easier to spot ticks on the scalp, which is important for some areas with a prevalence of Lyme disease. On the negative side: --Shorter hair, especially for those with lighter hair, receives more exposure to potentially damaging ultra...Purdue genetic discovery may aid plants and human medicine
...n another plant species results in plants that are shorter and stockier with a bigger root system than in the wild type. These mutants are more resistant to wind and may be more robust in difficult environments where the soil is poor and the climate is arid. "Timing is also important," he said "If we can tu...Volcanologist Richard S. Fiske receives award
...fft. Then, working with a colleague, he produced a shorter video version and developed a companion teacher's guide that is still being used today. Dr. Fiske was the chief curator for the Smithsonian Institution Traveling Exhibition entitled, "Inside Active Volcanoes: Kilauea and Mount St. Helens," and he has...Neandertal facial length issue settled
...ghtly, but with modern humans they get a whole lot shorter very quickly. So the question is, 'why did they get shorter?' I don't know. "But the point of this paper was not to answer that question, it was to allow us to frame that question. Because previously the question was, 'why did Neandertals have lo...New study: percentage of babies born with intestinal birth defect growing in U.S., N.C.
...me reason, the intestines also tend to be somewhat shorter than average. Unlike another birth defect known as omphalocele, in which the intestines remain outside but are covered with a membrane although no skin, gastroschisis is not generally associated with other acute problems such as in the heart, brain o...Common gene variant increases risk of atherosclerosis
...he Johns Hopkins scientists who first linked it to shorter life expectancy in humans. Their report appears in the May issue of the American Journal of Human Genetics. Using information and samples from two earlier studies of people at high risk for heart disease, the team discovered that those with at least ...Womb time drops when hungry mama conceives, Science study says
...ime of conception carried their unborn lambs for a shorter time than their fully-nourished peers according to a new study that may help doctors understand human preterm pregnancies. This research appears in the 25 April issue of the journal, Science, published by the American Association for the Advancement ......hich emit pulses of light that are a billion times shorter than an electronic camera flash, create a string of 3-micron bubbles just below the surface of the cornea. These bubbles then create a precise and well-defined flap through a process known as photodisruption. The process leaves a more well-defined fl...