Science News Magazine:Vol. 168 No. #2
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More Stories from the July 9, 2005 issue
Health & Medicine
Stem cell shift may lead to infections, leukemia
Aging of blood-producing stem cells could be responsible for the relatively high incidence of infections and myeloid leukemia in the elderly.
A nanoprinter for cheaper diagnostics
Using strands of DNA as movable type, scientists have created a miniaturized printing technique for mass-producing medical diagnostic chips.
Rumblings from a dead star
The burned-out cinder left behind when a massive Milky Way star exploded recently underwent its own outburst.
More junk makes for better dads
A new analysis links dutiful fatherhood in prairie voles to a stretch of DNA once dismissed as meaningless.By Susan Milius
Health & Medicine
Epilepsy surgery stands test of time
Brain surgery for people with severe epilepsy keeps many of these patients free of seizures for decades.By Nathan Seppa
Same Difference: Twins’ gene regulation isn’t identical
As identical twins go through life, environmental influences differently affect which genes are turned on and which are switched off.
Core Finding: Latest, oddest planet hints at how orbs form
A newly discovered planet beyond the solar system has the most massive core of any planet known.
Honey, We Shrank the Snow Lotus: Picking big plants reduces species’ height
Years of harvesting the larger plants of a Himalayan wildflower used in traditional medicines may be driving the evolution of a stubbier plant form.By Susan Milius
Health & Medicine
Heartening Responses: Depression drugs may aid survival after heart attack
Depressed patients recovering from heart attacks receive big heart-health benefits by taking prescribed doses of the antidepressant drugs known as selective serotonin reuptake inhibitors.By Bruce Bower
Striking Oil: High-pressure processing minimizes trans fats
Improvements in the techniques used to hydrogenate vegetable oils could soon fill store shelves with food products containing smaller percentages of unhealthful trans fats.By Ben Harder
Growth Slumps: Melting permafrost shapes Alaskan lakes
A new model suggests that some fast-growing, egg-shaped lakes in Alaska expand when their permafrost banks melt and slump in tiny landslides.By Sid Perkins
Volcanic Hot Spots
Many geophysical studies, including analyses of deep-traveling seismic waves and computer simulations of flowing molten rock deep beneath Earth's crust, are providing evidence that mantle plumes actually exist.By Sid Perkins
Night of the Crusher
Sleep paralysis, a kind of waking nightmare experienced by people in all cultures, sometimes plays a key role in post-traumatic stress disorder and panic attacks and contributes to widespread beliefs in various spirits and supernatural beings.By Bruce Bower
A Grand Slam
A 372-kilogram copper projectile released from NASA's Deep Impact spacecraft successfully slammed into Comet Tempel 1 on July 4, producing some heavenly fireworks.
A New Publisher
This week, we are pleased to welcome Elizabeth Marincola as the new president of Science Service and publisher of Science News. She succeeds Donald R. Harless, who retired after 34 years at Science Service, including 7 years as president and publisher of Science News. Elizabeth Marincola Marincola comes to us from the American Society for […]