Nuts to Your Health
November 21, 1998 | Volume 154 | Number 21
Cover: Most people savor nuts but worry about the heavy load of fat that they pack. Such nutritional concerns may be displaced, based on a spate of new clinical trials indicating that these fatty treats can bring about healthy changes in cholesterol and other blood lipids. (Photo: David Hills, The International Nut Council)
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News of the Week:
Chunk of Death-Dealing Asteroid Found
A meteorite found in the Pacific Ocean appears to be a fragment of the asteroid that ended the reign of the dinosaurs.
Self-motion perception heads for home
Sensations from the neck and the inner ear may play critical roles in monitoring where you are headed.
Microbe linked to Alzheimers disease
The unexpected presence of a pneumonia-causing bacterium in the brains of people with Alzheimers disease hints the degenerative illness may have an infectious origin.
Climate treaty talks mark some progress
At a meeting in Buenos Aires, negotiators reported making headway in working out how to implement a climate treaty known as the Kyoto Protocol, which the United States signed Nov. 12.
Sky map captures cosmic star glow
A new sky map portrays starlight beyond the Milky Way over the history of the universe.
Laser interplay stokes fusion uncertainty
Laser versus laser experiments show how beam interactions might hinder future attempts to spark nuclear fusion in the laboratory.
Birds prefer walls for wild flirting
Spotted bowerbirds flirt through a wall, even when researchers rearrange the courting ground.
High-pressure water triggers tremors
Tiny water droplets far below the earths surface can break rock, says a new theory, and even set off earthquakes.
TNT-sensing plastic exposes land mines
A new polymer that detects trinitrotoluene, or TNT, could help in the search for millions of unexploded land mines buried around the world.
Where has all the carbon gone?
The forests and wetlands of North America may be sopping up a large fraction of the carbon dioxide emitted by fossil fuel burning.
A rock that lies about its age
Geologists debate the age of an Indian rock formation that may hold the oldest evidence of animal life.
Alien seaweed is aquarium escapee
Genetic tests match aquarium algae to the agressive alien algae taking over the Mediterranean and distinguish those seaweeds from wild members of the species.
U.S. ban urged for alien alga
A petition by 107 scientists asks the Interior Department to ban the importation and possession of an environmentally dangerous seaweed currently in the aquarium trade.
Martian sand dunes: blowing in the wind
Viewing the north pole of the Red Planet, the Mars Global Surveyor spacecraft provides the first evidence that sand dunes there can change appearance over a few months.
Solar observatory almost fully recovered
Four months after ground controllers lost contact with the spacecraft, the Solar and Heliospheric Observatory is back in business.
Scientists offer a nutty recipe for hale hearts and slim physiques
New studies on the cardiovascular effects of nuts could transform the image of these fatty treats from an indulgence to a health food.
Old MacDonald was an Ant
She knew about manure, herbicides, weeding, andmayberaiding neighbors garden
Domesticating crops from the wild at least several times and sharing cultivated varieties, ants developed farming about 50 million years before people.
Letters: A Selection from Letters to the Editor
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