Moderate caffeine use does not increase miscarriage risk but high caffeine use doubles risk
...es caffeine, the investigators believe it is amore accurate barometer of daily caffeine consumption. "Because many studies of caffeine consumption have relied on self reporting, it has been difficult to gauge the effects ofcaffeine," said Duane Alexander, M.D., Director of the NICHD. "This research not only...$500,000 gift launches new clinical research effort in peripheral neuropathy
...peripheral neuropathy in order to gather the first accurate and comprehensive statistics on the disease's frequency, as well as racial, ethnic, socio-economic or geographic variations in prevalence. These data may provide important clues to identifying the underlying basis for the great majority of neuropathi...Zinc reduces pneumonia by 41%, and diarrhea by up to 25%
... December 6, 1999. To provide a complete and accurate summary of the effects of zinc supplementation on infectious diseases, Robert E. Black and Sunil Sazawal on behalf of the Zinc Investigators' Collaborative (ZINC) Group conducted a pooled analysis of original data from all identified publish...X-rays may show way to better Alzheimer's drugs
...ay crystallography can be used to capture highly accurate 'snapshots' of natural complexes, such as that of galanthamine with AChE. By studying these interactions, we can see how modifying certain chemical properties can potentially enhance their binding, leading to greater drug efficacy," says Sussman......ed through the left. But the left nostril was more accurate when the volunteers were trying to identify what they were breathing in. Cahill says the findings fit with ideas about how the brain processes smells. Earlier research suggested that each nostril sends almost all its sensory information to its own ...NASA'S Earth Science highlights for the 80th Annual AMS Meeting
...d on global climate models before they can produce accurate simulations of land-atmosphere interactions. Yoges...deling regional impacts of climate change produces accurate simulations of the 1993 U.S. floods and 1988 drought. Michael Fox-Rabinovitz will present his findi...Research highlights from Pacific Northwest National Laboratory
... relies on ultrasonic electronics to retrieve more accurate readings by limiting background noise. Also, the device allows fasteners to be inspected while in place, thereby reducing inspection time and allowing periodic monitoring. Inspectors have a greater opportunity to interpret the data and make repair ...... terms of time resolution optical methods are more accurate than purely electronic measuring devices by more than three orders of magnitude, scientists have been trying for a long time to use the high time resolution of optical pulse techniques for characterising electronic circuits. The objective of Jrgen Sm...Test provides accurate, noninvasive method to determine fetal lung development, UF researchers find
...cteria and mucus would interfere with obtaining an accurate measure of lung development. But we found this was...her the TDx/TDxFLx Fetal Lung Maturity II test was accurate when used with vaginally collected samples, researchers reviewed the files of 153 patients treated a...PSA level predicts future prostate growth
...surgery. The study means doctors can make a more accurate prediction of whether a man's prostate growth will continue. If it is likely to grow, doctors might prescribe a drug proven to slow the growth, or if it is unlikely to grow, doctors may choose to monitor the growth but not treat it. "The PSA test p...The future of planet earth: scientific challenges in the coming century
...and human causes; and provide decision makers with accurate data and better understanding for improved decision making, policy and planning. More information is available about USGS urban growth studies at edcwww2.cr.usgs.gov/urban/ or from USGS scientist Dave Kirtland at 703-648-4712. Emerging Infectious ...Scientists capture first images of how x-rays damage proteins
...xample, "Less intensive radiation may provide more accurate results," says Gitay Kryger, a Weizmann biologist. The initial experiments were conducted at the European Synchrotron Radiation Facility (ESRF) in Grenoble, France, using acetylcholinesterase taken from the Torpedo fish. The work at Brookhaven used ...Study: exercise, even without weight loss, is good for the heart
...unt the height of a person, is considered the most accurate measure of obesity. It is calculated by dividing body weight (in kilograms) by the square of the height (in meters) -- a BMI of 30 is considered obese, 35 is considered morbidly obese. The patients also had elevated cholesterol levels. "It is impor...Fossil plants' ties to ancient carbon redefined
...hat a few mathematical calculations can produce an accurate picture of the ratio of those isotopes in the atmosphere. The correlation is weaker in arid and desert environments and grasslands, but, according to Jahren, still a potentially useful tool. "Although this doesn't give us a blanket value for how much...Prostate cancer test works as well for black men, study shows
... traditional PSA test shows the new test proves as accurate in revealing cancer risk in African American men as it is in Caucasians. "It also shows that many African-American men could be spared the expense and trauma of prostatebiopsies," says Johns Hopkins urologist Alan W. Partin, M.D., Ph.D., co-leader o...Food web theory suggests ecology may be governed by general rules
...as made a career of studying food webs. "Having an accurate model of food webs gives ecologists a valuable too... be considered a law. "While it's not as simple or accurate as, say, the basic law of physics -- 'force equals mass times acceleration,' -- the niche model offe...Study points to U.S. as generator of greenhouse gases
... it very difficult on a short-term basis to create accurate carbon measurements and fair, functional international agreements. "All of these results indicate that we need to continue to improve our technologies for measuring carbon, determine where it is going, find ways to work through the annual variations......aboratory. "Scientists have been unable to provide accurate dataabout this." Some researchers have used atmospheric concentrations of carbon dioxide to inferwhere carbon sinks and sources are occurring. One such model now being questioned suggested thatNorth America so dominates terrestrial sinks that e...Sperm counts unchanged over 50 years
...igned, so that the results can be trusted to be an accurate reflection of sperm quality among American men. She noted that, coincidentally, the pool of men who provided semen samples primarily worked in blue-collar jobs that could have exposed them to significant environmental toxins - so if a drop was found...... countries' neighbor-neighbor relationships remain accurate but suddenly Norway looks oddly large next to little Sweden and Finland. Similarly, the mice's body map is basically intact but shifted in scale (see image). That was surprising, because in the visual system ephrins are known to help incoming neurons...