Uncategorized
- Health & Medicine
Heart damage tied to immune reaction
Researchers in Brazil have identified immune proteins that flood the heart tissues of many people with Chagas disease, suggesting a cause of this deadly complication of the parasitic tropical disease.
- Astronomy
Pluto or bust?
A new National Research Council report may revive plans to send a spacecraft to explore Pluto and its neighborhood.
- Paleontology
Unknown creature made birdlike tracks
Paleontologists have found a multitude of birdlike footprints left by a yet undiscovered creature in rocks more than 60 million years older than Archaeopteryx, the first bird to have left fossils of its body parts.
- Health & Medicine
Gene might contribute to asthma risk
Variations in a gene called ADAM33 may predispose a person to asthma.
- Chemistry
Material could halt catalyst waste
New research suggests a way that carmakers might use less of expensive metal materials in automobiles' catalytic converters.
- Health & Medicine
Hormone therapy falls out of favor
Several studies now indicate that health risks associated with hormone replacement therapy for postmenopausal women outweigh its benefits.
- Archaeology
Ancient site yields a copper whopper
Excavations in Jordan revealed the largest known Early Bronze Age metal-production facility, where workers crafted high-quality copper tools and ingots beginning around 4,700 years ago.
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Men of Prey
Scientists have started to uncover the roots of rape and child molesting, although questions remain about whether it's possible to identify who will be a repeat sex offender or to provide effective treatment for such behavior.
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19022
All of the characteristics the researchers ascribe to sexual abusers–hostile masculinity, penchant for impersonal assembly-line sex, sexual preoccupation, emotional callousness, attention-deficit hyperactivity disorder–prevent them from forming enduring emotionally intimate attachments. Perhaps abusers turn to domination sex in the vain attempt to relieve their frustration through an imposed physical intimacy they control. Marilyn M. KramerWausau, Wis. […]
- Ecosystems
Making Scents of Flowers
Science gets the tools to start sniffing around the ecology of floral scent.
- Math
Taxicab Numbers
Curious properties sometimes lurk within seemingly undistinguished numbers. Consider the story concerning Indian mathematician Srinivasa Ramanujan (1887–1920). His friend G.H. Hardy (1877–1947) once remarked that the taxi by which he had arrived had a “dull” number–1729, or 7 x 13 x 19. Ramanujan was quick to point out that 1729 is actually a “very interesting” […]
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From the July 23, 1932, issue
DROP OF OIL ATOMIZED INTO 100,000,000 PARTICLES A tiny drop of fuel oil no larger than the head of a safety match has been torn into 100,000,000 particles at the research laboratory of the General Electric Co., Schenectady, N.Y., it is announced. Intensely hot combustion results at high efficiency. Engineers are expected to apply the […]
