- :: Atom & Cosmos
- :: Body & Brain
- :: Earth
- :: Environment
- :: Genes & Cells
- :: Humans
- :: Life
- :: Matter & Energy
- :: Molecules
- :: Science & Society
- :: Other Topics
- :: Science News For Kids
http://www.sciencenews.org/view/issue/id/2187
In print
•
Subscribe •
In This Issue
- Sequencing the dead to save the living: Reviving ancient genomes of long-extinct creatures offers a window into past extinctions—and may help prevent future die outs
- No gene is an island: Even as biologists catalog the discrete parts of life forms, an emerging picture reveals that life’s functions arise from interconnectedness
- The decider: Informing the debate over the reality of ‘free will’ requires learning something about the lateral habenula
- This week's table of contents
Advertisement
November 17th, 2001
-
Deep-sea observations of occasional sediment-rich plumes of fresh water dumped into the ocean by rivers suggest that such underflows may be a prime conveyor of pesticides, organic carbon, and various nutrients to the seafloor. (p. 308)
-
A review of radiocarbon evidence indicates that farming groups colonized southern Europe over no more than 100 to 200 years, beginning around 7,400 years ago. (p. 308)
-
Neurons form connections with each other using cholesterol supplied by other brain cells called glia. (p. 309)
-
New and puzzling evidence for why big particles bob to the top when mixtures of granular materials are shaken-the so-called Brazil nut effect-emerges from an experiment showing that even the air between grains plays a role. (p. 309)
-
Using sound waves to obtain the first clear picture of the structure beneath the surface of a sunspot, scientists say they now have an explanation for why these dark blemishes-sites of intense magnetic activity-can persist for days. (p. 310)
-
Patients who have an implanted device to help the heart pump blood have a higher survival rate than patients getting only heart medication. (p. 310)
-
Male garter snakes that emerge from hibernation and attract a mob of deluded male suitors may just be looking for safety in numbers and body heat. (p. 311)
-
Recent discoveries of long-dead marine invertebrates call into question the occurrence of a catastrophic global extinction during the Late Devonian period, between 385 and 375 million years ago. (p. 311)
-
The bumpy back of a desert beetle has inspired a design for collecting water from fog. (p. 312)
-
Richardson's ground squirrels respond differently to alarm calls depending on whether the caller has a history of false alarms. (p. 312)
-
Abnormal electrical signaling in the brains of women with epilepsy may alter sex hormone cycling and explain why epileptic women seem to have a higher rate of reproductive disorders than do other women. (p. 312)
-
A new drug seems to help reduce abnormally high blood pressure in the lungs, a condition that can trigger heart failure. (p. 312)
-
The discovery that a gut hormone also exists in the brain may shed light on the origins of autism. (p. 314)
-
When newly created organic molecules, called TWTCPs, are attached to a porous silicon wafer and exposed to a certain class of bacterium, the wafer changes color. (p. 317)
-
A recently developed chemical cocktail that kills anthrax spores and breaks down chemical warfare agents and anthrax has received its first real- world trials in anthrax cleanups. (p. 317)
-
Women who work the graveyard shift increase their chance of developing breast cancer, perhaps because of chronic suppression of melatonin. (p. 317)
-
On Oct. 31, the Environmental Protection Agency rescinded its March decision to rescind a proposed tougher limit on arsenic in drinking water and is now planning to implement the tougher limit of 10 parts per billion in 2006. (p. 317)
-
The same communication system that brings you the Web page of your choice can be exploited to perform computations. (p. 318)
Advertisement
California’s Fading Wildflowers: Lost Legacy and Biological Invasions
Review by Rachel Ehrenberg
Buy now | More Books
Review by Rachel Ehrenberg
Buy now | More Books
Extreme Birds: The World’s Most Extraordinary and Bizarre Birds
Firefly, 2008, 287 p., $45
Buy now | More Books
Firefly, 2008, 287 p., $45
Buy now | More Books
©
Society for Science & the Public 2000 - 2008
All rights reserved.
sciencenews.org
