ScienceDaily Top Science Headlines
for Saturday, February 6, 2010
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Where did today's spiral galaxies come from? (February 6, 2010) -- Using data from the NASA/ESA Hubble Space Telescope, astronomers have created a demographic census of galaxy types and shapes from a time before the Earth and the sun existed, to the present day. The results show that more than half of the present-day spiral galaxies had peculiar shapes only six billion years ago, which, if confirmed, highlights the importance of collisions and mergers in the recent past of many galaxies. It also provides clues for the unique status of our own galaxy. ... > full story
HPV vaccines may reduce a wide range of genital diseases (February 6, 2010) -- High-coverage human papillomavirus (HPV) vaccinations among adolescents and young women may result in a rapid reduction of genital warts, cervical cell abnormalities, and diagnostic and therapeutic procedures, researchers report in a new study. Some of these genital abnormalities are precursors of cervical, vulvar and vaginal cancers. ... > full story
Craters young and old in southern highlands of Mars (February 6, 2010) -- The Mars Express High Resolution Stereo Camera has imaged craters both young and old in a new view of the southern highlands of Mars. ... > full story
Screening for short cervix could improve pregnancy outcomes and reduce preterm birth (February 6, 2010) -- Using ultrasound to screen all pregnant women for signs of a shortening cervix improves pregnancy outcomes and is a cost-effective way to reduce preterm birth, researchers report in a new study. ... > full story
Super material will make lighting cheaper and fully recyclable (February 6, 2010) -- With the use of the new super material graphene, Swedish and American researchers have succeeded in producing a new type of lighting component. It is inexpensive to produce and can be fully recycled. ... > full story
Youth who self-identify as gay, lesbian or bisexual at higher suicide risk, say researchers (February 6, 2010) -- Mental health professionals have long-known that gay, lesbian and bisexual teens face significantly elevated risks of mental health problems, including suicidal thoughts and suicidal attempts. However, a group of researchers has now come to the conclusion that self-identity is the crucial risk-factor, rather than actual sexual behaviors. ... > full story
'Zen' bats hit their target by not aiming at it (February 5, 2010) -- New research shows Egyptian fruit bats find a target by NOT aiming their guiding sonar directly at it. Instead, they alternately point the sound beam to either side of the target. The new findings suggest that this strategy optimizes the bats' ability to pinpoint the location of a target, but also makes it harder for them to detect a target in the first place. ... > full story
Prion leaves lasting mark on memory (February 5, 2010) -- Prions are a special class of proteins best known as the source for mad cow and other neurodegenerative diseases. Despite this negative reputation, a prion may also have important and very positive roles in brain function. The researchers suggest that a prion-like protein may participate in memory in higher eukaryotes, from sea slugs on up. ... > full story
Commercial fishing endangers dolphin populations, new study finds (February 5, 2010) -- Extensive commercial fishing endangers dolphin populations in the Mediterranean, according to a new study by researchers in Israel. ... > full story
Scientists map out regulatory regions of genome, hot spots for diabetes genes (February 5, 2010) -- Researchers have generated a complete map of the areas of the genome that control which genes are "turned on" or "off." The discovery, made in pancreatic islet cells, opens new avenues for understanding the genetic basis of type 2 diabetes and other common illnesses. ... > full story
New system provides hybrid electric autos with power to spare (February 5, 2010) -- An advancement in hybrid electric vehicle technology is providing powerful benefits beyond transportation. ... > full story
Couples who say 'we' do better at resolving conflicts (February 5, 2010) -- People often complain about those seemingly smug married couples who constantly refer to themselves as "we." But a new study suggests that spouses who use "we-ness" language are better able to resolve conflicts than those who don't. ... > full story
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