Researchers have uncovered a biochemical connection between presenilin, a molecule involved in the development of Alzheimer's disease, and another protein that controls crucial aspects of developmental biology.
Cutting the cost of space travel will take "looking in strange places for the right answers," said the director of the Advanced Space Transportation Program at NASA's Marshall Space Flight Center at the opening of the 10th annual Advanced Propulsion Research Workshop.
Two scientists at NASA Marshall Space Sciences Laboratory discussed the potential of spacecraft reproduction and evolution at the International Conference on Advanced Propulsion held in Huntsville, Ala.
Among the independent research projects pursued this year by Johns Hopkins engineering undergraduates are the construction of a self-navigating submarine, testing of a potential Alzheimer's treatment and a process for gene therapy, and constructing a digital model of the heart.
When European readers of Chateaubriand's famous "Atala" looked into the Mississippi Valley, they saw not the bustling trade of Yankee frontiersmen, but the noble image of Indians upholding an honorable code of conduct.
Furthering evidence of the importance of vitamin E, researchers at UT Southwestern Medical Center at Dallas have identified the pathway that may allow the vitamin to block the trigger of arterial plaque formation at the molecular level.
A University of Iowa researcher, with data and assistance from Duke University, has found that it is quite normal for blood pressures in women to drop or increase dramatically during cesarean sections.
Most drivers who engage in "road rage"--from tailgating and honking to sideswiping and drawing weapons--believe their aggressive behavior is inherited from a parent and their victims deserve what they get, according to a Central Michigan University study.
Sandpaper's cousin, silicon-carbide, may set the stage for a rugged, powerful new breed of semiconducting devices, a UD researcher will report April 6 during the Materials Research Society meeting. An alloy of silicon-carbide and germanium might handle hot, high-power, high-frequency microelectronic and microelectromechanical (MEMS) devices better than silicon, James Kolodzey says.
Scientists at the University of California at San Francisco have now found that grapefruit juice may have a negative impact on the body's absorption of many widely-prescribed medications, according to a study published in the April 1999 issue of Pharmaceutical Research.
A new study shows that declines in health insurance coverage were responsible for only one-fifth of the declines in access to health care services experienced by Hispanic Americans and young adults aged 18-24 between 1977 and 1996.
Sandia National Laboratories, five commercial ceramic manufacturers and Los Alamos National Laboratory are making ceramic history by taking the "art" out of ceramics production and replacing it with science, resulting in better products and lower production costs.
American dialysis patients are far more likely to skip kidney dialysis treatments than patients in either Sweden or Japan, a Wake Forest University Baptist Medical Center physician reports in the April 7 issue of the Journal of the American Medical Association.
A survey of human resource managers by Cornell University found that health, life and disability insurance costs rarely rise because of hiring employees with disabilities, but stereotypes about people with disabilities are still pervasive in the workplace, causing them to be hired less and fired more.
Over the next 10 months, healthcare information technology (IT) professionals will race the clock to implement Year 2000 conversions. Triple the number of IT professionals cite this as their number one priority compared to a year ago, according to the Tenth Annual HIMSS Leadership Survey Sponsored by IBM.
A Cornell professor of history and classics and director of the Peace Studies Program threw himself into a difficult new sport and then wrote a book about it. Rowing Against the Current: On Learning to Scull at Forty is a memoir that navigates through mid-life rites of passage as it meditates on the techniques and history of rowing.
Thanks to a massive readiness effort begun more than three years ago, the pharmaceutical industry is well-prepared to meet the challenges of the Year 2000 (Y2K), the Pharmaceutical Research and Manufacturers of America (PhRMA) announced today in releasing the results of a survey of member companies.
Treatment of mice with substances that halt the growth of blood vessels inhibited the development of artery-clogging deposits known as plaque, as well as the tiny blood vessels that may nourish the plaque, according to a study reported in today's Circulation: Journal of the American Heart Association.
Learning to spot signs of anger early becomes a finely honed survival skill for children who have suffered severe abuse. A new study by psychologist Seth Pollak suggests that this survival skill may actually trigger biological changes, altering the way the brain processes anger.
April 7 is World Health Day, "Healthy Aging, Healthy Living---Start Now!" April 5-11 is National Public Health Week, "Healthy People in Healthy Communities."
1- effort to decode rice genome is planned, 2- NSF accelerates move from paper to electronic, 3- small business is big source of jobs for s&e bachelor's degree holders, 4- NSF beats y2k deadline.
An in-depth review of emerging trends in China's energy sector and how these trends will impact future energy security in Asia is the focus of a year-long study to be released by Rice's James A. Baker III Institute for Public Policy in April.
Coral reefs will become a casualty of the industrialized world's growing carbon dioxide emissions by the middle of the next century, according to a study published in the April 2 issue of the journal Science.
Tropical coral reefs could be harmed by atmospheric carbon dioxide (CO2) entering the oceans; some reefs may already be declining.
From the orderly flow of sand through an hourglass to the unpredictable nature of an avalanche, the behavior of flowing solids -- or granular flows -- remains, in part, a mystery.
African American men are only one-third as likely to own their own businesses as are white men, according to an analysis by an economist at the University of California, Santa Cruz.
Scientists will describe initial results from a program to catch Leonids meteoroids in flight at the NASA/Ames Leonids Workshop April 12-15, 1999.
Malnutrition slows recovery from rotaviral infection, scientists say. Their new research, which challenges the long-accepted approach of withholding food to rest the bowels of infants and animals infected with the virus, documents what happens during recovery.
A batch of often angry, but sometimes tender, newly found poems has been found and published, adding to the current revival of interest in the poet of the people, Carl Sandburg.
For the first time, scientists have developed a reliable estimate of the number of "sprites" spawned by a single thunderstorm.
The amount of fat in the bloodstream after a meal is increased when sugars (at levels commonly consumed) are eaten together with fat according to a study published in the April issue of the Journal of the American College of Nutrition.
Using a tool known as the Child Behavior Checklist, researchers were able to compare the parent-reported problems of more than 13,000 children from Australia, Belgium, China, Germany, Greece, Israel, Jamaica, the Netherlands, Puerto Rico, Sweden, Thailand, and U.S.
Better diagnosis, newer treatments for mental illnesses, psychiatric researchers are successfully using knowledge from the past to determine patient outcomes and future trends. Four studies* show research, historical observation can refine diagnosis, treatment.
University of Michigan scientists have solved the mystery behind folic acid's ability to reduce amounts of a compound called homocysteine, which is associated with an increased risk of heart attacks, strokes and birth defects in humans.
Like teenage boys hanging out on a street corner, animals behave differently when they're in a large group than when they're by themselves. The mechanics and patterns of nature's aggregations - schooling fish, flocking birds or swarming insects - help understand how such groups behave in, and survive, trying conditions, says a University of Washington zoologist.
1) Effort to Decode Rice Genome Is Planned, 2) NSF Accelerates Move from Paper to Electronic, 3) Small Business Is Big Source of Jobs for S&E Bachelor's Degree Holders, 4) NSF Beats Y2K Deadline
Arsenic concentrations that exceed current recommended federal levels for drinking water are 10 times more likely to be found in domestic wells than in municipal water sources in New Hampshire, according to a study by researchers at Dartmouth College.
Researchers say they have confirmed, for the first time, that blue-green algae taken as a nutritional supplement can significantly lower cholesterol in animals.
A new protein-like polymer that supports the growth of endothelial cells and could be used for blood vessel replacement has been designed by researchers at the California Institute of Technology
New chemicals that, if successful, could become the first osteoporosis treatment to stimulate new bone growth -- rather than merely retard bone loss.
Creighton University scientists are part of a team that has developed a possible therapy for breast and prostate cancer. Tested in mice, the peptide-based drug kills breast cancer cells in tumors. The drug also kills other cancer cells, such as prostate cancer, in culture.
Most coffee drinkers feel they function better after that morning cup of java, and many researchers agree. But is it addictive? A French medical researcher presented new data that says it isn't addictive for most people.
New evidence has been reported that a popular nutritional and dietary supplement, called chromium picolinate, may be a cancer risk.
Scientists are developing a test that, for the first time, is allowing them to monitor urine for chemical indicators of cancer.
New materials that may extend the wear of contact lenses and lessen the risk of eye infection were described by researchers from the University of California, Berkeley.
They look more like stray computer parts than precision medical tools, but Amit Lal's research creations could give surgeons an incomparable new edge in medicine.
A new study by Ohio State researchers suggests it may be difficult to teach teenagers in post-communist societies to develop strong support for democratic and free market principles.
Clothes may soon be able to protect agricultural workers, or even weekend gardeners, from more than the sun. Scientists at the University of California in Davis say they have made cotton fabrics with built-in pesticide detoxifiers.
The negative effects of environmental tobacco smoke on a child who lives with parents who smoke continue to linger long after that child has left home, a new Ohio State University study suggests.
Research into new polymers targeted for aircraft safety shows that they are much more fire-resistant than current materials and, when heated, actually produce water vapor and leave a nearly nonflammable residue.
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