ScienceDaily Top Science Headlines
for Saturday, May 28, 2011
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Astronomers unveil most complete 3-D map of local universe (May 27, 2011) -- Astronomers have unveiled the most complete 3-D map of the local universe (out to a distance of 380 million light-years) ever created. Taking more than 10 years to complete, the 2MASS Redshift Survey (2MRS) also is notable for extending closer to the Galactic plane than previous surveys -- a region that's generally obscured by dust. ... > full story
Super-sticky 'ultra-bad' cholesterol revealed in people at high risk of heart disease (May 27, 2011) -- Scientists have discovered why a newly found form of cholesterol seems to be 'ultra-bad', leading to increased risk of heart disease. The discovery could lead to new treatments to prevent heart disease particularly in people with type 2 diabetes and the elderly. ... > full story
Bleach in the Icelandic Volcanic Cloud (May 27, 2011) -- Chlorine in the ash plume of the Icelandic volcano Eyjafjallajökull attacked atmospheric trace gases. One year after the Eyjafjallajökull volcano in Iceland brought European air traffic to a standstill its ash plume revealed a surprising scientific finding: Researchers found that the ash plume contained not only the common volcanic gas sulfur dioxide, but also free chlorine radicals. Chlorine radicals are extremely reactive and even small amounts can have a profound impact on local atmospheric chemistry. The findings give solid evidence of volcanic plume chlorine radical chemistry and allowed calculations of chlorine radical concentrations. ... > full story
Key molecule for stem cell pluripotency discovered (May 27, 2011) -- Researchers have discovered what enables embryonic stem cells to differentiate into diverse cell types and thus to be pluripotent. This pluripotency depends on a molecule -- E-cadherin -- hitherto primarily known for its role in mediating cell-cell adhesion. If E-cadherin is absent, the stem cells lose their pluripotency. The molecule also plays a crucial role in the reprogramming of body cells into pluripotent stem cells. ... > full story
New procedure to make brain surgery safer (May 27, 2011) -- To increase patient safety in clinical practice and minimize risks and damage that may arise during surgery, computer support and digital medical imaging are key technologies. Before brain operations, neurosurgeons can now evaluate patient-specific surgical risks, achieve increased safety, and avoid unacceptable risks. ... > full story
Does our personality affect our level of attractiveness? (May 27, 2011) -- Part of what determines how much success you will have in the dating world is whether you have a good sense of whether people find you attractive. ... > full story
Spitzer sees crystal 'rain' in outer clouds of infant star (May 27, 2011) -- Tiny crystals of a green mineral called olivine are falling down like rain on a burgeoning star, according to observations from NASA's Spitzer Space Telescope. This is the first time such crystals have been observed in the dusty clouds of gas that collapse around forming stars. Astronomers are still debating how the crystals got there, but the most likely culprits are jets of gas blasting away from the embryonic star. ... > full story
Scientists turn human skin cells directly into neurons, skipping IPS stage (May 27, 2011) -- Human skin cells can be converted directly into functional neurons in a period of four to five weeks with the addition of just four proteins, according to a new study. The finding is significant because it bypasses the need to first create induced pluripotent stem cells, and may make it much easier to generate patient- or disease-specific neurons for study in a laboratory dish. ... > full story
Green and lean: Secreting bacteria eliminate cost barriers for renewable biofuel production (May 27, 2011) -- Scientists have developed a process that removes a key obstacle to producing low-cost, renewable biofuels from bacteria. The team has reprogrammed photosynthetic microbes to secrete high-energy fats, making byproduct recovery and conversion to biofuels easier and potentially more commercially viable. ... > full story
Study confirms link between rheumatoid arthritis and COPD (May 27, 2011) -- Patients with rheumatoid arthritis are two times more likely to have concurrent chronic obstructive pulmonary disease (COPD) than healthy controls -- an association which was sustained even when variables such as age, gender, smoking and obesity were controlled for, according to a new study. ... > full story
Rendezvous with an asteroid: NASA to launch new science mission to near-Earth asteroid in 2016 (May 27, 2011) -- NASA will launch a spacecraft to an asteroid in 2016 and use a robotic arm to pluck samples that could better explain our solar system's formation and how life began. The mission, called Origins-Spectral Interpretation-Resource Identification-Security-Regolith Explorer, or OSIRIS-REx, will be the first U.S. mission to carry samples from an asteroid back to Earth. ... > full story
Fish oil may have positive effects on mood, alcohol craving, new study shows (May 27, 2011) -- Omega 3 fatty acids may be beneficial for more than just the heart. Researchers have found at a molecular level a potential therapeutic benefit from these dietary supplements for treating alcohol abuse and psychiatric disorders. ... > full story
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