Uncategorized
- Health & Medicine
Compound linked to IVF success
Women with high blood concentrations of anti-Müllerian hormone were more likely to conceive and give birth after in vitro fertilization.
- Health & Medicine
U.S. breast-feeding rates up
Between 2000 and 2008, the fraction of women breast-feeding babies increased, as did the fraction breast-feeding for a year.
- Humans
In research, it matters whether you’re a man or a mouse
A study that compares trauma responses of mice with those in people questions the relevance of mouse research to human disease.
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- Life
Ancestors of today’s placental mammals may never have shared the Earth with dinosaurs
A newly constructed family tree dovetails with the fossil record, but differs considerably from previous genetic studies by suggesting that placental mammals emerged after the dinosaur extinction.
- Animals
Compared with rodents, bat species carry more viruses
Viruses that can jump from animals to people may find the flying mammals a fine place to lurk.
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SN Online
FRAME OF MIND Laura Sanders ponders turning off depression instantaneously in her column “A new generation of antidepressants could help patients feel better faster.” A. Muto et al/Current Biology 2013 BODY & BRAIN See a video of nerves firing in a fish larva’s brain (below) as it hunts in “As fish watch prey, researchers watch […]
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Science Future for February 23, 2013
March 23 See rare whale specimens, watch a re-creation of a whale hunting a squid and learn how scientists track these giants at the new Whales: Giants of the Deep exhibition at New York City’s American Museum of Natural History. See bit.ly/SFamnhwhale March 28 The Russian Soyuz spacecraft launches from Kazakhstan carrying three crew members […]
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Science Past from the issue of February 23, 1963
NEW AIR TRANSPORT — Instead of trains on railroads and trucks on expensive highways, the less developed countries in the future are likely to use for their transport hybrid helicopter-airplanes that need only simple landing fields and no roads or rails between. This possibility was offered … by Dr. Phillip R. Carlson of the Lockheed […]
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Letters
Dark matter enlightened Tom Siegfried’s article on dark matter “Light in the Dark,” (SN: 1/12/13, p. 18) reminded me of the 19th century search for the luminiferous ether. One can only wonder if history will repeat itself in the 21st century search for dark matter.Jeffery Miller, Los Angeles, Calif. The difference is that the ether […]
