Uncategorized
- Chemistry
A crystal takes on an unusual topology
A single crystal exhibits the unusual topology known as a Möbius strip.
-
19015
I read this article with interest. In view of your previous story noting no statistical difference in effects on bipolar disorder among lithium, valproate, and placebo (“Extended test for bipolar drug,” SN: 5/27/00, p. 351), the real mystery is why the psychiatric profession is still depending on lithium. T. Everett MobleyKennett, Mo.
- Health & Medicine
New clue stirs up lithium mystery
Lithium and two other mood-stabilizing drugs may all work by depleting nerve cells of a chemical that the cells use to signal each other.
- Tech
Tiny rockets may advance minisatellites
A new type of miniaturized rocket may bring microspacecraft one step closer to reality.
-
19014
In this article, you state that magnesium sulfate has been shown to be effective in treating eclampsia. It also has been studied and apparently is effective in stopping some brain damage from stroke. I am wondering why the cost and availability of this drug is such a problem for poor countries. The last I checked, […]
- Health & Medicine
Drug cuts risk of seizures in pregnancy
An inexpensive drug treatment lessens the risk of seizures that sometimes strike and even kill women during pregnancy or immediately after delivery.
-
From the January 11, 1930, issue
THOMAS H. MORGAN GIVEN NEW HONOR The American Association for the Advancement of Science has chosen Dr. Thomas Hunt Morgan to succeed the eminent physicist Dr. Robert Andrews Millikan as president. To many the name of Thomas Hunt Morgan is synonymous with the modern theory of the gene as the determining factor in heredity. Upon […]
-
Eclipse Patrol
The first lunar eclipse of the year 2000 will be visible from North and South America on the evening of Jan. 20. Fred Espenak’s eclipse home page at the NASA/Goddard Space Flight Center Web site provides a complete guide to upcoming eclipses of the sun and moon. Go to: http://sunearth.gsfc.nasa.gov/eclipse/eclipse.html
- Animals
Marine Mules: Near-sterile hyrids boost coral diversity
Reef corals that spawn in great mixed-up soups of many species may be maintaining their diversity because their hybrids are sterile mules.
- Health & Medicine
Hemispheric Cross Talk: Brains show two sides of language function
Some people coordinate language use with both sides of their brains, allowing them to retain verbal skills after damage to one side or the other.
-
Evolution’s Death Row: Groups surviving mass extinction still go bust
Groups of species may persist through major extinction events only to die off in the aftermath.
- Materials Science
Wiregate: Metallic picket fence flips magnetic bits
Rather than relegate magnetic fields to the usual backup role of data storage for computers, a new microcircuit exploits those fields for computation, possibly leading to cheaper, lower-power chips than traditional electronic ones.
