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Late Bloomer: Hubble studies once-dormant galaxy

03-31-2007 · Science News Online

A new, wispy dwarf galaxy called Leo A has the potential to change the way astronomers build theoretical models of galaxy evolution.

Keywords: late, bloomer, hubble, studies, once-dormant, galaxy, study, once, dormant

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Mayo Clinic study suggests that a central nervous system viral infection can lead to memory deficits
10-23-2006 · EurekAlert!
In one of the first known laboratory studies that explores memory deficits associated with a viral infection of the central nervous system, Mayo Clinic researchers have evidence that this infection can lead to memory loss late in life.
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Higher risk of death for babies born just a few weeks early, study finds
11-12-2007 · EurekAlert!
Just a few more weeks of pregnancy may mean the difference between life and death for premature babies. While babies born late preterm often are considered healthy, they have higher risks of complications at birth than babies born full term. Studies have shown that late preterm infants have a greater risk of respiratory problems, feeding difficulties, temperature instability, jaundice and that their brains are less developed than full term infants.
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Hubble finds ring of dark matter
05-15-2007 · EurekAlert!
An international team of astronomers using the NASA/ESA Hubble Space Telescope has discovered a ghostly ring of dark matter that was formed long ago during a titanic collision between two massive galaxy clusters. It is the first time that a dark matter distribution has been found that differs substantially from the distribution of ordinary matter.
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RIT study confirms supermassive black holes produce powerful galaxy-shaping winds
10-31-2007 · EurekAlert!
Supermassive black holes can produce powerful winds that shape a galaxy and determine their own growth, confirms a group of scientists from Rochester Institute of Technology. The RIT team has, for the first time, observed the vertical launch of rotating winds from glowing disks of gas, known as accretion disks, surrounding supermassive black holes in the centers of galaxies. The findings are reported in the Nov. 1 issue of Nature.
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Hubble finds double Einstein ring, and other results
01-11-2008 · European Space Agency (ESA)
The NASA/ESA Hubble Space Telescope has revealed a never-before-seen optical alignment in space: a pair of glowing rings, one nestled inside the other like a bull's-eye pattern. The double-ring pattern is caused by the complex bending of light from two distant galaxies strung directly behind a foreground massive galaxy, like three beads on a string.
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Bioabsorbable stent shows excellent performance
03-24-2007 · EurekAlert!
The use of slow-release drugs in stents (drug-eluting stents) has dramatically reduced restenosis rates after percutaneous coronary intervention. However, these permanent metal devices may impair coronary imaging, predispose patients to late stent thrombosis, prevent positive remodeling and hinder revascularization. A study presented today at the American College of Cardiology's Innovation in Intervention: i2Summit assesses the safety and performance of a bioabsorbable stent that, if effective, could eliminate several of the problems associated with metallic stents.
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Genes influence age-related hearing loss
11-14-2007 · EurekAlert!
A new Brandeis University study of twins shows that genes play a significant role in the level of hearing loss that often appears in late middle age. The research, in the Journal of Gerontology: Medical Sciences, examined genetic and environmental factors affecting hearing loss in the frequency range of speech recognition.
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How red blood cells nuke their nuclei
02-10-2008 · EurekAlert!
Late in their development, mammalian red blood cells lose their nuclei when a ring of actin filaments contracts and pinches off a segment of the cell that mainly contains the nucleus. Relevance: This is the first study to reveal the proteins involved as a red blood cell loses its nucleus. The researchers plan to further investigate the entire process of red blood cell formation, which may lead to insights about genetic alterations that underlie certain red blood cell disorders.
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Drug treatment improves learning in mice with Down syndrome symptoms, Stanford/Packard study shows
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Pleasure and pain: Study shows brain's 'pleasure chemical' is involved in response to pain too
10-18-2006 · EurekAlert!
For years, the brain chemical dopamine has been thought of as the brain's "pleasure chemical," and studies have linked the addictive properties of drugs like cocaine to their effects on the dopamine system. But now, a new study adds a new twist to dopamine's fun-loving reputation: pain.
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