April 1998 Archives
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16 April 1998
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ScienceNOW(Science - AAAS)
Deadly Path to a Large Heart
Like the waistband in your favorite old pajamas, overstressed hearts often lose their elasticity and their ability to pump blood efficiently--a condition called congestive heart failure. The tired hearts are...
15 April 1998
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ScienceNOW(Science - AAAS)
Big Plans for Biomedical Research in K.C.
A grand new research outfit is taking shape in Kansas City, Missouri, that may one day rival the world's large biomedical charities. With $125 million in public financing, the Stowers...
15 April 1998
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ScienceNOW(Science - AAAS)
Test Gauges Tolerance for Job Stress
Air traffic controllers and emergency dispatchers must make critical decisions while being deluged with information. Now researchers have devised a test that accurately measures the cool, quick judgment needed to...
15 April 1998
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ScienceNOW(Science - AAAS)
Cheap Batteries Designed From Scratch
A cheaper, lighter version of the lithium batteries used in laptop computers and cellular phones may soon become available. Researchers have found a way to replace cobalt--the most expensive component...
15 April 1998
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ScienceNOW(Science - AAAS)
Wonder Wheat Breaks the Yield Barrier
NEW DELHI, INDIA--A new wheat variety that yields a whopping 18 tons per hectare was unveiled here yesterday at a conference sponsored by the International Wheat and Maize Improvement Center...
14 April 1998
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ScienceNOW(Science - AAAS)
Making Light Work of Encryption
Researchers have developed a way to encode information transmitted by light. The advance, described today at the International Society for Optical Engineering's AeroSense 98 Conference in Orlando, Florida, could lead...
14 April 1998
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ScienceNOW(Science - AAAS)
Sponge Poison Kills Cell Motors
A toxin that jams a common cellular motor has been discovered in a marine sponge. The compound, described in the current issue of Science, could perhaps be modified to keep...
14 April 1998
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ScienceNOW(Science - AAAS)
Dozing Brain Studies Hard
SAN FRANCISCO--Forget the clever mnemonics and untie that string around your finger. If you really need to learn something, get a good night's sleep. Researchers have found that two types...
13 April 1998
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ScienceNOW(Science - AAAS)
Beginnings of a Rout
In one of the greatest moments in modern medical science, American microbiologist Jonas Salk on 12 April 1955 pronounced his newly invented polio vaccine safe and effective in almost 90%...
13 April 1998
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ScienceNOW(Science - AAAS)
A Toy Time Machine
Score a paper victory for time travel. Physicists have long pondered how to transport a person--let's say you, the reader--into the past, perhaps using as a slingshot the warped space-time...
13 April 1998
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ScienceNOW(Science - AAAS)
A Commonsense Climate Index
Wondering whether that wet winter was a fluke? Climatologists have come up with a new index that may help people find out if climate change is happening right in their...
13 April 1998
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ScienceNOW(Science - AAAS)
Fishing for Tumors
Tumors can betray their presence by shedding cells that enter the bloodstream. Spotting these rare cells takes a keen eye and good luck, but now researchers have devised a tool...
10 April 1998
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ScienceNOW(Science - AAAS)
Dreaming Brains Like Loose Concepts
SAN FRANCISCO--Ever wonder why your dreams can be so freakish? It's because your thought patterns are also bizarre in never-never land. Researchers have shown that concepts are more disjointed during...
10 April 1998
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ScienceNOW(Science - AAAS)
Support for Exotic Superconductivity Theory
A radical theory of high-temperature superconductivity--electric conduction with no resistance at comparatively high temperatures--has won its first experimental support. In today's Science, researchers describe how these superconductors are completely different...
10 April 1998
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ScienceNOW(Science - AAAS)
Genes Reveal Upwardly Mobile Hindu Women
SALT LAKE CITY--Although outlawed in the 1960s, the Hindu caste system constrained the marriage choices of Indians for 3000 years. This rigid social system has left a clear mark on...
10 April 1998
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ScienceNOW(Science - AAAS)
Lone Bug Behind Coral Death
Scientists have solved the puzzle of a mysterious disease that 3 years ago wiped out a third of the coral at some reefs off the Florida Keys. The culprit, unmasked...
9 April 1998
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ScienceNOW(Science - AAAS)
Australopithecine Not so Precocious
SALT LAKE CITY--A few years ago, the big head of an ancient apelike skeleton known as Mr. Ples challenged the standard view that the earliest members of the human family,...
9 April 1998
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ScienceNOW(Science - AAAS)
Academy Rallies Teachers on Evolution
WASHINGTON, D.C.--Whether it's a symptom of rotten science literacy or a triumph of conservative religious organizations, evolution is ignored or downplayed in many classrooms these days. Yet, says a panel...
9 April 1998
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ScienceNOW(Science - AAAS)
Interstellar Water--But Not a Drop to Earth?
Astronomers have measured large amounts of water vapor in a gas cloud near the Orion Nebula, 1500 light years away. While these measurements, to appear in the 20 April Astrophysical...
9 April 1998
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ScienceNOW(Science - AAAS)
The Call of the Slime
Scientists have discovered a chemical rallying cry that some bacteria use to congregate and form biofilms, tough colonies that resist antibiotics and disinfectants. The finding, reported in tomorrow's Science, could...
8 April 1998
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ScienceNOW(Science - AAAS)
Drug Giant Creates Genomics Institute
Most drug companies seeking to apply the wealth of data on the human genome to the hunt for new drugs have turned to specialized start-up companies for help (Science, 7...
8 April 1998
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ScienceNOW(Science - AAAS)
Gene Hikes Risk of Osteoporosis
Women who have certain versions of a gene that helps make the protein collagen are likely to have weaker than normal bones--and a higher risk of fractures--after they reach menopause....
8 April 1998
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ScienceNOW(Science - AAAS)
A Second Perilous Breach in the Ozone Hole?
Greenhouse gases will pry open a springtime ozone hole over the Arctic during the next few decades--much like the one now over the Antarctic--according to predictions from a computer model...
8 April 1998
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ScienceNOW(Science - AAAS)
Jumbo Gene Offers Clue to Parkinson's
Scientists have discovered a massive gene that, when mutated, causes a rare condition similar to Parkinson's disease. Although the finding--reported in tomorrow's issue of Nature--won't resolve a long-running debate over...
7 April 1998
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ScienceNOW(Science - AAAS)
Nobel Bondage
One of the most fruitful decades of chemical research began on 6 April 1931, with a landmark paper by Linus Pauling on the relationship between chemical bonds and the magnetic...
7 April 1998
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ScienceNOW(Science - AAAS)
Jupiter's Dusty Doughnut Spins Backward
Astronomers have detected a new ring of tiny dust particles circling Jupiter. The ring is unique in the solar system, because most of the dust seems to be orbiting backward--in...
7 April 1998
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ScienceNOW(Science - AAAS)
A Preemptive Strike Against Pain
Recovering from surgery can be less of a trial if patients' nerves are numbed right before surgery begins. A clinical study reported in tomorrow's issue of the Journal of the...
6 April 1998
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ScienceNOW(Science - AAAS)
Fast Test for Infant Infections
A new blood test can quickly reveal whether an infant has a bacterial infection. If the test, described in the March Journal of Pediatrics, can be developed for widespread use,...
6 April 1998
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ScienceNOW(Science - AAAS)
Structure of Potassium Channel Solved
Scientists have worked out the structure of the potassium ion channel, a sluice in the cell membrane that enables neurons to transmit electrical signals. The accomplishment, reported in the current...
6 April 1998
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ScienceNOW(Science - AAAS)
Energy Chief to Quit
WASHINGTON, D.C.--Energy Secretary Federico Peña announced at a press conference here today that he will resign at the end of June, ending over a year of speculation about his future...
6 April 1998
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ScienceNOW(Science - AAAS)
Drug Wards Off Breast Cancer
WASHINGTON, D.C.--A popular drug used to treat breast cancer also can prevent it in healthy older women with an elevated risk for the disease, according to results from a large...
3 April 1998
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ScienceNOW(Science - AAAS)
But Officer, It Was the Fog
Thick fog poses an obvious traffic hazard--you can't see very far. Now scientists have identified a surprising danger of driving in pea soup: The lack of contrast makes high speeds...
3 April 1998
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ScienceNOW(Science - AAAS)
Sharp Views from Dissonant Ultrasound
Scientists have invented a new type of ultrasound probe that jostles tissue or other material then listens for sounds generated by the movement. The technique, described in today's Science, can...
3 April 1998
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ScienceNOW(Science - AAAS)
p53 Protein Broken? Break It Again
A genetic mutation usually leads to crippled and misfolded proteins, but in rare instances an additional mutation can bring a protein back to life. Now researchers have discovered a mutation...
2 April 1998
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ScienceNOW(Science - AAAS)
Closing the Regeneration Gap
Today is the 70th birthday of Elizabeth Hay, an embryologist at Harvard Medical School who, through pioneering studies on regeneration of amphibian limbs, has shed light on the cellular mechanisms...
2 April 1998
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ScienceNOW(Science - AAAS)
Sandia Enters Fusion Race
A serious contender in the race for fusion energy could emerge from a once obscure program at New Mexico's Sandia National Laboratories. In a letter to the Department of Energy...
2 April 1998
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ScienceNOW(Science - AAAS)
Gene Helps Plants Weather Cold
Scientists have engineered a small mustardlike plant to withstand the damaging effects of freezing temperatures. The feat, reported in tomorrow's issue of Science, might someday allow farmers to rest easy...
1 April 1998
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ScienceNOW(Science - AAAS)
French Plan to Sample Mars, Solar Wind
Mars looms large in the future of the French space agency CNES, which yesterday held a press conference in Paris to unveil its plans for the next decade. Mars Express,...
1 April 1998
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ScienceNOW(Science - AAAS)
First Working Bionic Cell
In the 1970s TV drama "The Six Million Dollar Man," the show's opening credits feature a team of scientists creating artificial limbs and an eye that, unlike today's prosthetic devices,...
1 April 1998
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ScienceNOW(Science - AAAS)
Inbreeding's Kiss of Death
Scientists have found a strong link between inbreeding--mating with first cousins and other close kin--and whether a small, isolated butterfly population went extinct. The finding, reported in tomorrow's Nature, bolsters...
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