Uncategorized
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Cloning is most efficient using non–stem cells
Fully matured cells can be used to clone animals.
- Animals
Tropical diversity came with time
Species in richly diverse tropics don't evolve faster than do species in temperate zones.
- Health & Medicine
Antiviral drug may limit herpes spread
In people with genital herpes, the drug famciclovir sharply reduces virus shedding from the genitalia.
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Prepared brains achieve insight
Sudden verbal insights arise from distinct brain operations that focus attention and facilitate access to word knowledge.
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19745
The research showing that experimental animals receiving both antibiotics and stomach-acid suppressants colonized large numbers of drug-resistant intestinal bacteria might be important to preventing drug-resistant Clostridium difficile. Reviewing patients’ records to see whether those who developed the disease were more frequently prescribed antibiotics and stomach-acid blockers at the same time might be helpful in preventing […]
- Health & Medicine
Do acid blockers let microbes reach the colon?
Suppressing stomach acid while taking antibiotics may allow drug-resistant bacteria to colonize the intestines.
- Astronomy
Record-breaking galaxy
Looking ever deeper into space and farther back in time, astronomers have found a galaxy more distant than any other known in the universe.
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19744
An entire scientific community could be wrong about something, be expected to know that they are wrong, and for nearly inexplicable reasons persist in being wrong. This happened when the medical establishment embraced Freudian psychology as an explanation of human behavior. In spite of extensive training in the biological and chemical sciences, medical practitioners of […]
- Physics
Fit to Be Tied
Two new books present scathing critiques of string theory, which holds that the universe has 11 dimensions and that its fundamental building blocks are ultratiny loops of energy known as strings.
- Planetary Science
Ring Shots
With the sun poised behind Saturn, the Cassini spacecraft recently got a unique view of the rings' icy dust particles, enabling it to discover two new rings and confirm the presence of two ringlets.
- Planetary Science
Web Special: Clay magic on Mars
NASA's Mars Reconnaissance Orbiter has just completed a week of picture taking from as low as 300 kilometers above the surface of the Red Planet.
- Humans
Letters from the October 21, 2006, issue of Science News
Fish story? To argue that the concentrations reported in “Macho Moms: Perchlorate pollutant masculinizes fish” (SN: 8/12/06, p. 99) are environmentally relevant is misleading. Those concentrations are usually in groundwater, not surface waters. I’ve been involved in the environmental field for almost 20 years and have yet to hear of any fish being caught in […]
