ScienceDaily Technology Headlines
for Sunday, August 21, 2011
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Giant space blob glows from within: Primordial cloud of hydrogen is centrally powered (August 19, 2011) -- Observations from the European Southern Observatory's Very Large Telescope have shed light on the power source of a rare vast cloud of glowing gas in the early universe. The observations show for the first time that this giant "Lyman-alpha blob" -- one of the largest single objects known -- must be powered by galaxies embedded within it. ... > full story
Powerful X-rays enable development of successful treatment for melanoma and other life-threatening diseases (August 19, 2011) -- Powerful X-ray technology is revealing new insights into diseases ranging from Alzheimer's to the swine flu, and, most recently, enabled the discovery of a groundbreaking new drug treatment for malignant melanoma. The drug, Zelboraf (vemurafenib), has just received U.S. Food and Drug Administration approval. In showing the structures of diseased and disease-causing molecules, these light sources enable scientists to suggest potential new treatments. ... > full story
Molecular scientists develop color-changing stress sensor (August 19, 2011) -- It is helpful -- even life-saving -- to have a warning sign before a structural system fails, but, when the system is only a few nanometers in size, having a sign that's easy to read is a challenge. Now, thanks to a clever bit of molecular design by bioengineers and chemists, such warning can come in the form of a simple color change. ... > full story
Quantum optical link sets new time records (August 19, 2011) -- Quantum communication could be an option for absolutely secure transfer of data. The key component in quantum communication over long distances is entanglement between two atomic systems. Entanglement is very fragile and until now researchers have only been able to maintain the entanglement for a fraction of a second. But researchers have now succeeded in maintaining the entanglement for up to an hour. ... > full story
Research team achieves first two-color STED microscopy of living cells (August 19, 2011) -- Current applications of STED microscopy have been limited to single color imaging of living cells and multicolor imaging in "fixed" or preserved cells. However, to study active processes, such as protein interactions, a two-color STED imaging technique is needed in living cells. This has now been achieved for the first time. ... > full story
New images reveal structures of the solar wind as it travels toward and impacts Earth (August 19, 2011) -- Using data collected by NASA's STEREO spacecraft, researchers have developed the first detailed images of solar wind structures as plasma and other particles from a coronal mass ejection traveled 93 million miles and impacted Earth. ... > full story
Are those liquids explosive? (August 19, 2011) -- A team of researchers in Spain has developed a method to determine the chemical composition of liquids seized by police and suspected to be explosive. Some of the samples analyzed contained substances hazardous to health, such as methanol and boric acid. ... > full story
Climate change and ozone destruction hastened with nitrous oxide used in agriculture (August 19, 2011) -- Researchers have discovered a new binding site for nitrous oxide (N2O). Nitrous oxide reductase, an enzyme containing copper, plays a key role in the biochemical process by reducing N2O to N2. This enzyme is highly sensitive to oxygen and is often precipitated in the reaction chain, meaning large amounts of N2O are released by fertilized fields in the farming industry. ... > full story
DNA construction software saves time, resources and money (August 19, 2011) -- Scientists have developed the first software package for automating DNA construction that not only makes the process faster and more efficient but -- with an eye on the economics of scientific discovery -- also identifies which construction strategy would be the most cost-effective. ... > full story
Cashless parking: Windshield microchip to make it easier (August 19, 2011) -- Vacant parking spaces in town are thin on the ground. Finding one is just as tiresome as making sure you have the right change for the parking machine. An adhesive microchip on the windshield will make things much easier by unlocking the door to cashless parking. ... > full story
Ions control shape of nanofibers grown on clear substrate (August 19, 2011) -- Researchers have found a new way to develop straight carbon nanofibers on a transparent substrate. Growing such nanofiber coatings is important for use in novel biomedical research tools, solar cells, water repellent coatings and others. The technique utilizes a charged chromium grid, and relies on ions to ensure the nanofibers are straight, rather than curling -- which limits their utility. ... > full story
Disordered networks synchronise faster than small world networks (August 19, 2011) -- Synchronization occurs when individual elements in a complex network behave in line with each other. This applies to real-life examples such as the way neurons fire during an epileptic seizure or the phenomenon of crickets falling into step with one another. ... > full story
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