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The chemicals that give tart cherries their red color may relieve pain better than aspirin and may provide antioxidant protection comparable to commercially available supplements like vitamin E, according to Michigan State University researchers.
Chemical industry efforts to keep the so-called Y2K computer problem from shutting down safety controls may be further behind than previously thought -- particularly at smaller chemical companies around the nation.
New evidence suggests that the chemical which prompts a hangover after a night of heavy drinking may also cause cancer, according to an international team of scientists.
Examining sediment cores from New York's Central Park Lake dating back 100 years, a group of scientists conclude that incineration of solid waste, rather than leaded gasoline, has been the dominant source of atmospheric lead to the New York City metropolitan area, and possibly many other urban areas during the 20th century.
Observations of the state of science in Cuba, based on discussions with Cuban scientists and U.S. scientists just back from an international scientific meeting in Havana, are reported in this week's edition of the magazine Chemical & Engineering News.
U.S. government scientists have come up with a way to keep apples from turning brown for up to five weeks after they've been sliced or peeled. The new technique, which uses natural products and doesn't require special packaging, could eventually have a major impact on the marketability of fresh-cut fruit.
A future war over water is a distinct possibility, according to the director-general of the United Nations Environment Programme, who made his prediction in an interview that appears in the Jan. 1 issue of the journal Environmental Science & Technology.
An extremely sensitive and selective sensor that can detect minute traces of the chemical nerve agents sarin and soman at levels as low as 600 parts per quadrillion has been successfully tested at Johns Hopkins University.
The most comprehensive study of in-home formaldehyde emissions to be conducted in more than a decade shows that emissions from new permanent press clothing, paints, floor finishes, wallpaper and fingernail polishes may be more significant than previously recognized.
A major active ingredient in many sunscreens damages DNA when exposed to sunlight in a test tube, according to scientists in Northern Ireland. They say that if similar damage occurs within skin cells, it could destroy them or possibly initiate changes leading to skin cancer.
Tests by Japanese researchers show that beer may inhibit the action of mutagens caused by some suspected cancer-causing compounds.
Scientists have found a protein in the small intestine that may force medical science to re-think long-held beliefs about how the human body absorbs cholesterol and fat, according to a report in the journal Biochemistry. Researchers say the newly discovered protein is directly involved in facilitating uptake of dietary lipids and offers a better target for drugs to combat obesity and heart disease.
Environmental pollutants that are known to cause cancer in rat mammary tissues are present in human breast milk, according to scientists in Canada.
Rivers may be emitting significant amounts of nitrous oxide as a result of effluents from wastewater treatment plants and agricultural fields, according to a study by the U.S. Geological Survey. In the atmosphere, nitrous oxide (N2O) acts as a catalyst in ozone depletion.
A phenomenon that today allows scientists to quickly detect illegal drugs without tampering with the packaging, to analyze nuclear waste from safe distances and to detect life-threatening diseases at an early stage will be designated an International Historic Chemical Landmark by the American Chemical Society and the Indian Association for the Cultivation of Science (IACS).
Cherry hamburgers may be healthier for you than regular hamburgers, based on the results of a study by scientists looking into this unusual combination. Adding cherries to hamburger meat retards spoilage and reduces the formation of suspected cancer-causing compounds known as HAAs (heterocyclic aromatic amines).
A newly discovered chemical compound on the surface of some women's kidney cells may explain susceptibility to urinary tract infections, according to current research in the journal Biochemistry. The structure, a specific type of compound known as a glycosphingolipid, is suspected to be on urogenital tract cells in about 30% of all men and women and binds strongly to E. coli bacteria.
A previously unknown contaminant, similar to PCBs and dioxins, and suspected to be of marine origin, has been found in the eggs of Atlantic and Pacific Ocean seabirds. If a marine organism is proven to be the source, it would be the first instance of a naturally produced organohalogen accumulating in the eggs of wild birds.
Genetic remnants of an ancient virus, incorporated into every human's DNA, may be responsible for some resistance to anti-AIDS drugs, according to researchers working for Science Applications International Corporation (SAIC), a sub- contractor to the National Cancer Institute (NCI) in Frederick, Md.
Scientists say they have demonstrated, for the first time, how a newly discovered and purified protein regulates control of feeding behavior. The research, done at Amgen in Thousand Oaks, Calif., could lead to new strategies for treating obesity.
Chemists at the University of Maryland, College Park, have developed a new, highly selective way to detect chemical weapons. The system uses molecules that are fluorescent in the presence of even small amounts of lethal phosphate esters, including the nerve agent SARIN -- which was used by terrorists in a 1995 Japanese subway attack.
Chemists at the Sloan-Kettering Institute for Cancer Research have created a novel vaccine they hope will thwart prostate cancer. Now in early human trials, the vaccine is the first made synthetically to target carbohydrates on the surface of tumor cells and is reported in the Nov. 20 Web edition of the Journal of the American Chemical Society.
Analysis of endocrine disrupters, environmental issues and polymers from renewable resources are among the topics that will be discussed here August 23 through 27 at the 216th national meeting of the American Chemical Society, the world's largest scientific society.
Chemical Abstracts Service added the 18 millionth chemical substance to its database - the world's largest collection of chemical information.
An edible lily plant, one of the most important vegetables grown in Hokkaido, Japan, is often threatened by a a fungus that develops lesions in the bulbs. But the stress caused by the attack of the plant pathogen triggers a series of chemical reactions that causes the plant to make some natural pesticide.
A series of chemical compounds--known as nitrosamines--found in unburned tobacco and tobacco smoke have been strongly linked to lung cancer formation, says Stephen S. Hecht, Ph.D., of the University of Minnesota Cancer Center in Minneapolis. In the first comprehensive review in over a decade, Hecht summarizes all the peer-reviewed studies of the biochemistry, biology, and carcinogenicity of these tobacco- specific nitrosamines.
Just as humans may use naphthalene "moth balls" to fumigate their closets, termites may use naphthalene to protect their nests, according to a research group led by urban entomologist Gregg Henderson, Ph.D., at Louisiana State University in Baton Rouge.
1) Deformed Frogs Might Be Due to Natural Degradation of Pesticides, 2) Chlorinated Dioxins Found in Century-old Soil Sample
Cigarette tar is deposited in the lungs of smokers, and these lung tissues are continuously bathed in an aqueous solution that can dissolve and transport the water-soluble chemicals in the tar. According to William A. Pryor, Ph.D., Director of the Biodynamics Institute at Louisiana State University, this aqueous cigarette tar (ACT) extract is a complex mixture of hundreds of compounds that can cause DNA damage.
The following research articles will appear on February 28 in the Web edition of the Journal of Agricultural and Food Chemistry, a peer-reviewed journal published by the American Chemical Society, the world's largest scientific society. Microwave cooking reduces PCB levels in Atlantic Bluefish taking a cold look at the chemistry of stale beer.
The Pennsylvania site where an innovative SmithKline Beecham process allowed the life-saving drug Tagamet (cimetidine) to become widely available was designated a National Historic Chemical Landmark today by the world's largest scientific society, the American Chemical Society, and Britain's Royal Society of Chemistry.
DALLAS -- Monitoring cancer therapy and the global warming debate are among topics that will be discussed here March 29 through April 2 at the 215th national meeting of the American Chemical Society, the world's largest scientific society.
WASHINGTON -- A known metabolite of Premarin, the oldest and most widely-prescribed estrogen replacement therapy, has been found to attach to some of the basic building blocks of DNA, according to a report published January 23 in Chemical Research in Toxicology, a peer- reviewed journal of the American Chemical Society, the world's largest scientific society.
WASHINGTON -- "Bionic" implants to monitor human health, the ultimate in miniaturization of electronic devices, and an energy-efficient car to wipe the haze from the world's cities are among the advances that chemists predict their discipline will achieve before 2023.
The U.S. chemical trade surplus will drop over the next 25 years, if not disappear, as manufacturing abroad replaces exports from the U.S.; Plants will become the main source of oil and plastics; And green chemistry and other pollution prevention technologies will eliminate pollution from the chemical industry.
ENVIRONMENTAL CHEMISTRY TIP SHEET - January 1998 1. Pure as the Driven Snow? Tracking Pollutants on Snowflakes 2. Getting the Lead out May Mean Cleaning up the Outdoors 3. What Is the Source of Atmospheric Mercury Contamination in Remote Areas?
WASHINGTON, Dec. 22 -- An estimated 70,000 to 90,000 scientists emigrate from Russia every year, according to an article published in the Dec. 22 issue of Chemical & Engineering News, the weekly news magazine of the American Chemical Society, the world's largest scientific society. Because they are in the 30- to 45-year-old range, almost an entire generation of scientists has been lost to one of the world's largest countries.
Food Chemistry Tip Sheet: 1. Soy-Based Infant Formulas Contain Beneficial Isoflavones 2. Sunflower Pectin Can Be Used for Low-Calorie Jellies 3. Epoxy from Can Copatings Found in Infant Formula Liquid Concentrates 4. Canadian Cured Meat Shows Little Decline in Nitrite Levels
Washington -- Scientists today report making modifications to the promising anticancer drug paclitaxel, originally isolated from the Pacific yew tree, that they say may enable it to be more soluble in a patient's body and therefore more effective. The drug's limited solubility has complicated its efficacy in cancer treatment.
WASHINGTON -- The chemical analysis of a 9000-foot core taken from the Greenland ice sheet has now uncovered unequivocal evidence of large-scale atmospheric lead pollution in the Northern Hemisphere dating to 300 A.D. And the source has been traced to ancient Carthaginian and Roman mines in Spain, according to Dr. Kevin J. Rosman of the Curtin University of Technology in Perth, Australia. Rosman's group, along with colleagues from the Domaine Universitaire in France, report their results in the December issue of Environmental Science & Technology, a peer-reviewed journal of the American Chemical Society, the world's largest scientific society.
The following research articles will appear in the December issue of Environmental Science & Technology, a monthly peer-reviewed journal published by the American Chemical Society, the world's largest scientific society: 1. Sunflowers Filter Uranium, Clean Up Contaminated Ground Water, 2. Mother Nature's Outdoor Air Cleaner Proves a Health Problem For Indoor Offices, 3. Mexican Auto Emissions Improve, but Problems Still Exist, 4. Exposure to PCBs In Residential Indoor Air near a Superfund Site
Food Chemistry Tip Sheet (from the Journal of Agricultural and Food Chemistry): Health Benefits of Sugar Found in Garlic Include Lower Cholesterol and Reduced Tooth Decay & Using Chemistry to Make Cultivated Shrimp Taste Wild
WASHINGTON, Nov. 10 -- New technologies and scientific research are finding innovative ways to detect, attack and prevent food safety problems caused by the microorganisms that are linked with some 90 percent of all food-related contamination outbreaks, according to an article published in the Nov. 10 issue of Chemical & Engineering News, the weekly news magazine of the American Chemical Society, the world's largest scientific society.
Chemists graduating in 1998 should find a favorable job market that will offer the most opportunities since the late 1980s, according to the annual employment outlook published in the Nov. 3 issue of Chemical & Engineering News, the weekly news magazine of the American Chemical Society, the world's largest scientific society. "Only four years ago," says C&EN editor Madeleine Jacobs, "the job market was being described as the bleakest in 20 years." But now "there are more recruiters with more job openings coming out sooner to get the jump on their competition," notes Paul A. Bartlett, chemistry department chair at the University of California, Berkeley.
Washington, DC -- Thousands of school children and American Chemical Society volunteers across the country will celebrate the 10th Anniversary of National Chemistry Week in their communities through exhibits in local museums, malls and parks, and in displays organized to demonstrate the wonders of chemistry and its impact on our lives.
ENVIRONMENTAL CHEMISTRY TIP SHEET Summaries of papers which will appear in the November issue of Environmental Science & Technology, a monthly peer-reviewed journal published by the American Chemical Society, the world's largest scientific society.
"You shouldn't wear lipstick when you're drinking a glass of champagne." That unique reporting style of Joe Palca, science correspondent for National Public Radio, has earned him the top chemistry reporting award from the world's largest scientific society.
People are always amazed at what they find in their attics, but the latest discovery is that dust in the attics of some older homes in Nevada and Utah contain trace amounts of radioactivity left over from above-ground nuclear testing northwest of Las Vegas in the 1940s and 1950s. The researchers stressed that the radioactivity is low enough that the dust poses no direct danger to area residents. Embargoed for 9-10-97, 1:00 PM EDT
Whether you perm, straighten, style or just brush your hair, you're eroding its protective cuticle layer and, eventually, breaking hair strands. Now scientists have, for the first time, figured out the step-by-step chemical effect of hair relaxers on curly hair, leading to new uses for polymers to protect your hair. The new research was presented here today at a national meeting of the American Chemical Society. Embargoed for 9-9-97, 7:00 PM EDT
Honey has been used to cure meat for hundreds, if not thousands, of years. In modern times, food chemist Paul Dawson and his group at Clemson University in South Carolina are discovering this natural preservative also confers excellent protection against oxidation and boosts shelf life in popular processed meats. Their research was presented here today at a national meeting of the American Chemical Society. Embargoed for 9-8-97, 11:00 PM EDT
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