MIT Biologists Identify Aging Mechanism
...H: THAT MORTAL COIL "Strikingly, the nucleolus of old SGS1 cells is enlarged and fragmented, and thefoll...embodied by the enlarged andfragmented nucleoli of old cells." First, the researchers tackled nucleolar enlargement. This, they discovered, wascaused by E...Iron Deficiency Increases Likelihood Of Bone Fractures
...Allowance of iron for children 6 months to 10years old at 10 mg per day, the same as for women after menopause and adultmen. Adolescent boys should take in 12 mg per day. Adolescent girls andpre-menopausal women need 15 mg a day, while pregnant women need 30 mg. Medeiros recommends that people wh...Research Aims At Nation's First 'Smart' Ground Water Regulations
... to be used, assumptions that were implicit in the old regulations would become explicit in the new ones, and that makes it a whole new ball game," Engel says. For example, assume, hypothetically, that current pesticide regulations were written so that there is a 10 percent risk of pesticides moving to g...Timber Supplement From Paper And Plastic
A supplement for timber could come from old telephone books and plastic milk containers, according to CSIRO researchers. CSIRO project leader Dr Bob Coutts says that industrial-scale trials have begun with a paper/plastic product and it shows promise of being suitable for some applicat...Infants, Toddlers Should Not Restrict Fat Intake, Experts Say
...or many infants and toddlers, and even children as old as 5 years, all of whom may need more fat in their...esting new dietary recommendations for children as old as age 5 and changes in the makeup of infant formulas. "The scientific community is focused in one d...Good Ergonomics Is Good Economics
...ths. Forge shop manipulator. In a forge shop, the old manipulator was replaced with a new one, having an...ll better workplace design. In comparison with the old manipulator, whole body vibration was reduced, noise was reduced by 18 db, operator sick leave dropp......ciency. How can we tell if anindividual cell is an old one or a newly formed one? How long will a particularcell live? The answer comes from a basic fact about biochemistry: a cell onlymakes DNA when it is dividing into two new cells. New cells can therefore beidentified if new DNA chains can be tagge......s -- 14 men and 6 women who were at least 50 years old --who had no prior history of heart attack or cardiac surgery had an operation toclear blockages in more than one vessel. All of them had stenosis -- narrowedblood flow due to atherosclerosis -- in their internal mammary artery/leftanterior descendi...Biologists Map First Gene For Age-Related Hearing Loss In Mice
...canthearing losses. They eventually become deaf in old age." Most important, Willott found that the year-old congenic miceretained cell densities of a young, normally hearing B6 mouse. Other genes which cause hearing loss have also been mapped.The only genes cloned so far are from the "shaker-1" mutant a......ts,about 15 percent said their animals were ill or old and needed to be euthanized;7 percent said they were moving; 5 percent felt they had too many animals; 4percent said owning a pet cost too much; and 3.5 percent said the animals hadsoiled the house. In addition, the majority of respo...Study Shows: Just Say NO To Bone Loss
... and if you don't have that situation,you can have old bone matrix, where the matrix becomes brittle and susceptibleto fracture." But if the osteoclasts get the upper hand, the skeleton loses too much bone,leading to osteoporosis or inflammatory bone disease. As for the naughty (and nice) nitric oxide, ...Major Wolf Die-Off Recorded On Isle Royale
...ose study. "Many of theanimals that died then were old and weak--the kind wolves love to prey on. Thoseanimals are no longer available, so wolves have had to rely on calves they couldkill, since healthy adult moose are quite able to defend themselves againstattack under most circumstances." Peter......ast, the incidence inchildren less than four years old decreased from 61% of cases in 1989 to 46% ofcases in 1996. Meningitidis serogroup Y was not detected in 1989-90, but in1995-96 accounted for over 30% of cases. In 1995-96 72% of adult cases were dueto serogroups C (44%) and Y (28%). Surveillance ...Non-Surgical Treatment Ends Pelvic Pain In Women
...o the estimated 15 percent of women 20 to 40years old with the condition, which is caused by varicose veins in the ovaries,says Anthony Venbrux, M.D., director of interventional radiology. The bad veinscause blood to pool in the ovaries and pelvis, leading to sometimes cripplingpain during and after sex...New Sickle-Clawed Fossil From Madagascar Links Birds And Dinosaurs
... The fossil bird is 65 to 70 million years old and dates from the LateCretaceous period. It was discovered in 1995 by an international team ofpaleontologists led by researcher David Krause, also of SUNY-Stony Brook. Thescientists have named the new discovery Rahona ostromi, meaning "Ostrom's me...Purdue Research Helps Keep Phosphorus Out Of Surface Water
...k to phosphorus, Purdue researchers suspected that old theories about the nutrient's movement weren't accurate. In 1992, Joern started measuring phosphorus levels in fields and found that phosphorus can move down through soils. "Fields with a long history of phosphorus loading from manure or other fertil...Extra Choline During Pregnancy Enhances Memory In Offspring
...y enhancement endured until the rats were 4 months old -- the equivalent ofearly adulthood in humans. Specifically, the research showed that choline enhanced a brain functioncalled long-term potentiation (LTP), in which the act of receiving an electricalstimulus or "message" actually paves a pat...From The Home Front To The River Front, USGS Updates Water-Quality Information
...ient management goes into affect this year." "The old adage `Too much of a good thing' applies in certain areas,"Lindsey said. Nitrogen in manure and fertilizers added to agriculturalland is essential for plant growth; however, a concentrated animal operation can produce more manure than the crops grow...Florida Or Bust? Older Lab Rats Seek Heat To Fight Infection, UD Researchers Report
...ced tiny transmitters in the abdomens of young and old rats, then recordedand analyzed their behavioral responses to LPS injections. Each animal wasplaced in a long, box-like alleyway that was cooled at one end and heated at theother end to provide a range of temperature choices, from 50-104 degrees F(10...Weary Tibetan People Find Supporting Hand In ASU Graduate Student
...lost as many animals, and three of them live in an old tent that is only 3-by-3 meters in area." The family's story and other tales of suffering drove Foggin to organize a relief effort for the people of the countryside, an idea that will end with over 60 six-ton trucks of supplies that will be deliver...