Investigating 'brain shrinkage' in alcoholics
...ing around electrical wires. Nerve cells also have shorter and more numerous fibres or processes called dendrites with many fine branching processes ?similar to the root system of a tree ?that allow them to 'talk' with neighbouring neurons, often as many as five to 10,000 at a time." Alcohol appears to be p...Lands surface change on Alaska tundra creating longer, warmer summers in Arctic
...es in weather and vegetation." Because there is a shorter period of snow on the ground, solar radiation is absorbed by the land surface more readily and contributes to heating, thus accelerating the melting of snow and allowing for more plant growth. Over time, as the permafrost begins to melt, ancient orga...Research suggests fitness of Florida panthers improved by limited breeding with Texas animals
...an their purebred counterparts, "hybrid males have shorter lives than purebreds," the paper also reports. The authors suspect many of the males are killed by older purebred males in the area. Others migrate into areas with "fewer cats but other dangers from human settlement," Pimm said. "Young males get into...Neanderthal teeth grew no faster than comparable modern humans'
...ting to them that a Neanderthal childhood would be shorter than our own. But Guatelli-Steinberg's team want...n populations ?a conclusion that did not support a shorter childhood for the Neanderthals. Enticing though it may be, these new findings haven't convinced th...Surgical Robot 'Scrubs In' At UNC, May Be More Precise Than Conventional Surgery
...urn to normal activities much more quickly, with a shorter hospital stay. We also found a reduced use of pain medications after robotic surgery, with fewer complications," said Dr. John F. Boggess, gynecological oncologist, assistant professor of obstetrics and gynecology at UNC's School of Medicine and a me...Screen all at risk for HIV, plus pregnant women
...urn to normal activities much more quickly, with a shorter hospital stay. We also found a reduced use of pain medications after robotic surgery, with fewer complications," said Dr. John F. Boggess, gynecological oncologist, assistant professor of obstetrics and gynecology at UNC's School of Medicine and a me...Scientists find a maturity gene in fly
...oo soon, and became prepupae that were lighter and shorter than normal. * The gene also is needed for the early stages of metamorphosis to proceed; it plays a role in turning on and off other genes that control metamorphosis in response to a steroid hormone named ecdysone, which is emitted by a gland as...MWG Biotech expands siMAX?siRNA portfolio with new scales, lengths and design tools
...oo soon, and became prepupae that were lighter and shorter than normal. * The gene also is needed for the early stages of metamorphosis to proceed; it plays a role in turning on and off other genes that control metamorphosis in response to a steroid hormone named ecdysone, which is emitted by a gland as...FDA: 'Highly Unlikely' Green Tea Lowers Cancer Risk
...urn to normal activities much more quickly, with a shorter hospital stay. We also found a reduced use of pain medications after robotic surgery, with fewer complications," said Dr. John F. Boggess, gynecological oncologist, assistant professor of obstetrics and gynecology at UNC's School of Medicine and a me...Tiny roundworm's telomeres help scientists to tease apart different types of aging
...d species like humans have telomeres that are much shorter than the telomeres in species like mice, which liv...id worm populations with short telomeres exhibit a shorter life span. On the other hand, long-lived and short-lived mutant worms could have them either way wit......onkeys thought that a stimulus that was 50 percent shorter was vibrating at just a slightly lower frequency than it was--not 50 percent lower. To find the cause of this discrepancy, they recorded electrical activity in single neurons of the primary somatosensory cortex. Since the shortened stimulus had pro...Chernobyl: The true scale of the accident
...r health from radiation exposure and a belief in a shorter life expectancy. Anxiety over the health effects of radiation shows no signs of diminishing and may even be spreading. Life expectancy has been declining across the former Soviet Union, due to cardiovascular disease, injuries and poisoning, and not r...MicroRNA gene that regulates lifespan found by Yale scientists
...ion in lin-4 had a lifespan that was significantly shorter than normal, suggesting that lin-4 prevents premature death. Conversely, over-expressing lin-4 led to a longer lifespan. They also found that a loss–of-function mutation in lin-14, the target of lin-4, caused the opposite effect -- a 31 percent longe...A little telomerase isn't enough
...arts out with chromosomes whose telomeres are even shorter than their parents, the researchers report. The failure of telomerase to lengthen these telomeres explains why successive generations develop the physical symptoms of the disease at younger ages than their parents or grandparents, say the researchers...Why Christmas trees are not extinct
...hrough firs, pines and other conifers are 10 times shorter than those in flowering trees. But a University of...f a meter. The bottom line is that conifers have shorter conduits and fewer valves, both of which would increase resistance to water flow, "but they compensa...Penn Surgeons Use Completely Robotic Surgery to Successfully Treat Prostate Cancer
...: less pain and scarring, diminished blood loss, a shorter hospital stay and reduced recovery period for a quicker return to daily activities. The actual robot consists of a tower that manipulates instruments controlled from a console that is situated a few feet from the patient. At the console, the surgeo...Scientists learn to predict protein-stabilizing ability of small molecules
...: less pain and scarring, diminished blood loss, a shorter hospital stay and reduced recovery period for a quicker return to daily activities. The actual robot consists of a tower that manipulates instruments controlled from a console that is situated a few feet from the patient. At the console, the surgeo...Changes to embryos can elicit change in adult fish
...e closing in-lever gets longer, the out-lever gets shorter and vice-versa," explained Streelman. "When the in-lever is long, this gives the jaw a high mechanical advantage and the jaw can produce more force for biting. When the out-lever is long, that results in a lower mechanical advantage and a better de...How the neuron sprouts its branches
...hich grow a single long "apical" dendrite and many shorter ones. To explore the role of Golgi outposts, they used imaging of living rat brain cells grown in culture, as well as electron microscopy of rat brain tissue. These studies revealed that the Golgi outposts tended to appear in longer dendrites and al......searchers said such stress reduction could lead to shorter hospital stays -- with corresponding lower medical bills -- and a reduced risk of infections among patients. The researchers focused on a group of 42 married couples who had been together an average of at least 12 years. Each couple was admitted in...