February 1997 Archives
28 February 1997
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ScienceNOW(Science - AAAS)
Revealing Our Genetic Heritage
On this day in 1865, Austrian monk Gregor Johann Mendel presented seminal results of his plant-breeding experiments at a meeting of the National Sciences Society in Brno, Czechoslovakia. Although Mendel's...
28 February 1997
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ScienceNOW(Science - AAAS)
Low-Tar Cigarettes and Lung Cancer
Low-tar cigarettes may reduce your chance of getting one kind of lung cancer, but they boost your risk of another lung cancer type, says a study reported in next month's...
28 February 1997
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ScienceNOW(Science - AAAS)
Did 10,000-Year Belch Fuel American Life?
Paleontologists searching for an explanation for why modern mammals suddenly appeared in North America 55 million years ago had never thought to probe the deep sea. But according to a...
28 February 1997
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ScienceNOW(Science - AAAS)
The Brains Behind Intuition
Have a hunch? Maybe you should act on it. Scientists have found key differences in decision-making behavior between normal individuals and those with a certain form of brain damage. The...
27 February 1997
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ScienceNOW(Science - AAAS)
Grants Bolster Latin American Science
BETHESDA, MARYLAND--Guests at an awards ceremony here grimaced as they watched a video of biochemist Lourival Possani pluck a deadly scorpion from a box full of its squirming cousins and...
27 February 1997
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ScienceNOW(Science - AAAS)
Pig Retrovirus Raises Alarms Over Transplants
For the first time, scientists have discovered a pig retrovirus that infects human cells. The finding, reported in next month's issue of Nature Medicine, raises new questions about whether people...
27 February 1997
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ScienceNOW(Science - AAAS)
Gene Defect Fails to Block HIV
AIDS researchers were encouraged last year when they found that people with a specific genetic defect appeared to be protected from infection by HIV. But a new finding, reported in...
27 February 1997
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ScienceNOW(Science - AAAS)
Early Humans Braved Siberia?
While the story of Homo sapiens begins about 2.5 million years ago in sunny Africa, there has been no evidence that early humans ventured into bitter subarctic regions, such as...
26 February 1997
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ScienceNOW(Science - AAAS)
Discoveries by Induction
Today is the birthday of Dominique François Jean Arago, a French astronomer and physicist born in 1786. Arago is best known for his discovery of the chromosphere--the sun's lower atmosphere--which...
26 February 1997
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ScienceNOW(Science - AAAS)
Varmus: Cloning Humans "Repugnant"
WASHINGTON, D.C.--The cloning of an adult sheep by Scottish biologists was on every legislator's mind when Harold Varmus, director of the National Institutes of Health (NIH), appeared to defend his...
26 February 1997
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ScienceNOW(Science - AAAS)
Crippled Antibiotic Linked to Cystic Fibrosis Infections
People with cystic fibrosis are prone to killer lung infections. But scientists have been puzzled over how the genetic defect underlying the disease--a mutated gene that leads to poor transport...
26 February 1997
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ScienceNOW(Science - AAAS)
To Seek Out New Worlds--From Scratch?
Over the past 15 months, astronomers have spotted hints of perhaps a dozen planets orbiting other sunlike stars, making them seem almost commonplace. But just in case anyone was getting...
26 February 1997
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ScienceNOW(Science - AAAS)
Spears Point to Early European Hunters
Several heavy wooden spears unearthed in northern Germany provide the first concrete evidence that early humans in Europe were active hunters of large animals and offer a window into the...
25 February 1997
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ScienceNOW(Science - AAAS)
Tapping Russia's Hidden Science
Scientists worldwide might soon be able to tap into one of Russia's best kept secrets: a wealth of research data in obscure institute libraries or samizdat publications. This "gray literature,"...
25 February 1997
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ScienceNOW(Science - AAAS)
Sun-Ripened Vaccines
LONDON--Scientists have for the first time used a vaccine made inside a plant to protect animals--in this case minks--against a viral disease. The achievement, reported in next month's issue of...
25 February 1997
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ScienceNOW(Science - AAAS)
Canada Finds Big Bucks for Academic Labs
OTTAWA--The Canadian government is launching a $1.5 billion program to upgrade equipment and labs at the nation's research universities. But the good news--part of the government's 1997 budget presented last...
25 February 1997
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ScienceNOW(Science - AAAS)
Red-Thumb Gardeners to Transform Agriculture?
When a team of biochemists spliced a bacterium's gene for making hemoglobin into a tobacco plant, they expected the transgenic plant to be a tad hardier. Instead, they got veritable...
24 February 1997
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ScienceNOW(Science - AAAS)
A Discovery to Dye For
Today is the birthday of Carl Graebe, a German organic chemist born in 1841 whose work helped create the synthetic dye industry. Graebe and co-worker C. Liebermann discovered that a...
24 February 1997
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ScienceNOW(Science - AAAS)
Melanoma Vaccine Triggers Immune Response
PHILADELPHIA--Last year, David Berd, an oncologist at Thomas Jefferson University here, found that melanoma patients given an injection of altered versions of their own tumor cells after surgery were nearly...
24 February 1997
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ScienceNOW(Science - AAAS)
Three Mile Island's Cancer Legacy?
A new study suggests that people living near the Three Mile Island nuclear power plant in 1979, when it released radioactive gas into the air, may have suffered from a...
24 February 1997
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ScienceNOW(Science - AAAS)
Mary Had a Little ... Clone
Creating a whole new organism from a single cell has been more the stuff of science fiction than of science. Not anymore. Scientists have cloned a lamb using a cell...
21 February 1997
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ScienceNOW(Science - AAAS)
Catching Waves
German physicist Heinrich Hertz, a pioneer of radio communication, was born on 22 February 1857. Hertz demonstrated for the first time that electric waves are essentially the same as light...
21 February 1997
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ScienceNOW(Science - AAAS)
Kennewick Man Gets His Day in Court
EUGENE, OREGON--A group of scientists has won a round in a legal battle over a 9300-year-old skeleton that could hold important clues to the peopling of the Americas. The researchers...
21 February 1997
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ScienceNOW(Science - AAAS)
Fish Harmed by Ozone Hole?
The ozone hole over Antarctica has been implicated for the first time in harm to animal life. A provocative report in the current issue of the Proceedings of the National...
21 February 1997
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ScienceNOW(Science - AAAS)
Leaping Toward a Leptoquark?
For weeks, tantalizing rumors have been leaking out of the Deutsches Elektronen-Synchrotron (DESY) in Hamburg, Germany. This week, at a DESY seminar, researchers lifted the curtain on what they've been...
21 February 1997
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ScienceNOW(Science - AAAS)
Mouse Model for Diabetes
In a long-awaited feat, scientists have created a line of mice with symptoms that mimic adult-onset diabetes. The achievement, reported in today's issue of Cell, could lead to better screening...
20 February 1997
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ScienceNOW(Science - AAAS)
Cluster's Last Stand?
PARIS--The European Space Agency (ESA) appears to have found a way to salvage its Cluster mission, the four-probe mission to study Earth's magnetosphere that blew up shortly after launch last...
20 February 1997
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ScienceNOW(Science - AAAS)
Sounds of Deception
SEATTLE--Everyone's familiar with optical illusions--those tricks that tell us not all seeing is believing. Now scientists are beginning to learn that our ears can be fooled in much the same...
20 February 1997
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ScienceNOW(Science - AAAS)
Neutron Stars on Ice
SEATTLE--Astronomers studying bursts of x-rays from spinning neutron stars may have seen one of these superdense objects brake and accelerate like a spinning figure skater, all in the space of...
20 February 1997
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ScienceNOW(Science - AAAS)
Birds Survived the Big One?
Many people think that the catastrophe that killed off the dinosaurs 65 million years ago--probably a giant asteroid--also took out most archaic birds and mammals, too. If so, modern birds...
19 February 1997
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ScienceNOW(Science - AAAS)
Bird Song Stuck in the Head
SEATTLE--Some birds that learn to sing just as people must learn to talk appear to have more cues to learning wired into their brains than researchers had previously recognized. "We've...
19 February 1997
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ScienceNOW(Science - AAAS)
Virologist Pleads Guilty to Child Abuse
WASHINGTON--Nobel laureate Daniel Carleton Gajdusek pleaded guilty to two counts of child abuse yesterday. Gajdusek, 73, who is currently free on $350,000 bail, is expected to serve a jail term...
19 February 1997
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ScienceNOW(Science - AAAS)
Aging Gene May Protect Against Heart Attacks
SEATTLE--Some people who have a particular form of a gene that, when mutated, causes Werner's syndrome--a rare disorder characterized by rapid aging in youth--appear to have a relatively low risk...
19 February 1997
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ScienceNOW(Science - AAAS)
Banding Against Umbilical-Cord Patent
LONDON--An alliance of researchers and lobbyists this week filed two objections to a European patent granted to a U.S. company for the extraction and use of blood stem cells from...
19 February 1997
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ScienceNOW(Science - AAAS)
Making Antisense of Asthma
In a potentially lethal overreaction of the immune system, something as seemingly harmless as dust mites or pollen can leave a person with asthma gasping for air. Drugs provide some...
18 February 1997
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ScienceNOW(Science - AAAS)
Current Discoveries
Today is the birthday of Alessandro Volta, an Italian physicist born in 1745 who discovered how to produce electric current. It was known that muscles in dead frogs contract when...
18 February 1997
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ScienceNOW(Science - AAAS)
The Birth of Black Holes
Few astronomers doubt the existence of black holes, even though their intense light-trapping gravity prevents them from being spotted directly. But just how these ultradense collections of matter form isn't...
18 February 1997
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ScienceNOW(Science - AAAS)
Earliest Eastern Americans
SEATTLE--Newly dated fish bones and artifacts reveal that early Archaic Indians were basking in the Florida sun almost 10,000 years ago. The finding, reported here Saturday at the annual meeting...
18 February 1997
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ScienceNOW(Science - AAAS)
A New Way to Resist HIV Infection?
SEATTLE--Researchers may have found a new explanation for why some people seem to fend off the AIDS virus. According to a study reported here on Saturday at the annual meeting...
14 February 1997
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ScienceNOW(Science - AAAS)
Creating Clouds in the Lab
On this day in 1869, Scottish physicist Charles Wilson, inventor of the Wilson Cloud Chamber, was born. Wilson attempted to re-create in his laboratory the wondrous early-morning cloud effects seen...
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