Science News

Science newspaper is a magazine specializing in Science topics.

Articles from Vol. 135, No. 24, June 17

AIDS Vaccine: Preliminary but Promising
AIDS vaccine: Preliminary but promising Researchers last week reported a series of significant, incremental steps toward a vaccine to protect against AIDS. They emphasize that general availability of such a vaccine remains, at minimum, many years...
A Light Touch Changes the Biological Clock
A light touch changes the biological clock Airline passengers leaving San Francisco for London might one day use a precisely timed dose of light to reset their biological clocks to English time and avoid debilitating jet lag, if future research confirms...
Ancient Ice Reveals Sudden Climate Shift
Ancient ice reveals sudden climate shift From deep within Greenland's ice cap, investigators have retrieved signs that the North Atlantic region took fewer than 20 years to shift from glacial conditions to warmer ones at the end of the last ice age....
Biting off a Record-Breaking Piece of Pi
Biting off a record-breaking piece of pi "Compute but verify" is the strategy at the core of a remarkable new method for calculating pi ([pi])--the ratio of a circle's circumference to its diameter. In a recent demonstration of the method's power,...
Bush Proposes Strong Air-Cleaning Measures
Bush proposes strong air-cleaning measures Nearly half the U.S. population lives in areas with unhealthy air, according to Environmental Protection Agency Administrator William K. Reilly. This week, President Bush unveiled new legislation to eliminate...
Cranking Up Cancer Treatments: A Bright Future for Growth Factors
Cranking Up Cancer Treatments Like the famous exhortation "Go west, young man," and like the single word "plastics" whispered to Ben in "The Graduate," there's some simple, sage advice going around these days in cancer treatment circles: "growth factors."...
Diabetes Peril for Developing Children
Diabetes peril for developing children Traditionally, insulin-dependent diabetes has not been associated with impaired intellectual functioning in childhood. But very preliminary results of a three-year Canadian study hint that children who get Type...
Microbes Recruited in Valdez Cleanup
Microbes recruited in Valdez cleanup Just after midnight on March 24, the Exxon Valdez supertanker ran aground in Alaska's Prince William Sound, spilling 10.1 million gallons of crude oil and fouling 368 miles of shoreline in that sound alone. Roughly...
Now in Vivo: Altering Endothelial Cells
Now in vivo: Altering endothelial cells Like the bed of a swiftly moving river, endothelial cells lining blood vessel walls maintain intimate contact with blood flowing throughout the body. Such proximity tantalizes researchers who seek cells they...
Oracle Bone Shows a Once-Shorter Day
Oracle bone shows a once-shorter day "Three flames ate the sun. Big stars [seen]." These cryptic words, inscribed in Chinese characters on an ancient piece of tortoise shell, record a total solar eclipse in which the sun's corona and its streamers...
Radioactive Drugs Ease Bone-Tumor Pain
Radioactive drugs ease bone-tumor pain Radiation-emitting chemicals may provide relief for some cancer patients who suffer continuous, toothache-like pain from tumors that have infiltrated their bone. Two of these experimental treatments show impressive...
RNA Offers Clue to Life's Start
RNA Offers Clue to Life's Start In answering the question of how life began, biologists can offer only plausible stories. One oft-described scenario highlights ribonucleic acids, or RNA, as the evolutionary link between life's chemical precursors...
Soviet Describes AIDS Errors
Soviet describes AIDS errors It didn't make sense. Of 17 million men screened in the Soviet Union as of 1988, only five had antibodies indicating HIV infection. Of 4 million women, only eight tested positive. So officials were surprised in December...
The Mechanics of Natural Success: Bioengineers View Physics as a Lever on Evolution
The Mechanics of Natural Success Eliminating the impossible may seem like a long way to the truth, but in the search for truth in nature, it could provide a shortcut. Looking at the natural world in the form of individual molecules, especially genes,...