ScienceDaily Technology Headlines
for Tuesday, June 28, 2011
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Scientists discover dielectron charging of water nano-droplet (June 28, 2011) -- Scientists have discovered fundamental steps of charging of nano-sized water droplets and unveiled the long-sought-after mechanism of hydrogen emission from irradiated water. ... > full story
Nanowire-based sensors offer improved detection of volatile organic compounds (June 28, 2011) -- A team of researchers has made nano-sized sensors that detect volatile organic compounds -- harmful pollutants released from paints, cleaners, pesticides and other products -- that offer several advantages over today's commercial gas sensors, including low-power, room-temperature operation and the ability to detect one or several compounds over a wide range of concentrations. ... > full story
Brain rhythm associated with learning also linked to running speed, study shows (June 27, 2011) -- Rhythms in the brain that are associated with learning become stronger as the body moves faster, neurophysicists report in a new study. The research team used specialized microelectrodes to monitor an electrical signal known as the gamma rhythm in the brains of mice. This signal is typically produced in a brain region called the hippocampus, which is critical for learning and memory, during periods of concentration and learning. ... > full story
Golden window electrodes developed for organic solar cells (June 27, 2011) -- Researchers have developed a gold plated window as the transparent electrode for organic solar cells. Contrary to what one might expect, these electrodes have the potential to be relatively cheap since the thickness of gold used is only 8 billionths of a meter. ... > full story
New material promises faster electronics (June 27, 2011) -- The novel material graphene makes faster electronics possible. Scientists have developed light detectors made of graphene and analyzed their astonishing properties. ... > full story
Terahertz light to illuminate cell biology and cancer research (June 27, 2011) -- Unique research is set to trigger a new era in research into cancer diagnosis and our understanding of how living things function, researchers say. Scientists are using Europe's most intense terahertz light source to understand the effects of terahertz (THz) rays on human cells. ... > full story
Mechanics of speciation: Model examines factors that contribute to emergence of new species (June 27, 2011) -- Mate choice, competition, and the variety of resources available are the key factors influencing how a species evolves into separate species, according to a new mathematical model that integrates all three factors to reveal the dynamics at play in a process called sympatric speciation. ... > full story
New solar cell: Engineers crack full-spectrum solar challenge (June 27, 2011) -- Engineering researchers report a new solar cell that may pave the way to inexpensive coatings that efficiently convert the sun's rays to electricity. ... > full story
Hitting moving RNA drug targets: New way to search for novel drugs (June 27, 2011) -- By accounting for the floppy, fickle nature of RNA, researchers have developed a new way to search for drugs that target this important molecule. ... > full story
Scientists pioneer nanoscale nuclear materials testing capability (June 27, 2011) -- A technique for testing irradiated materials on the nanoscale has yielded results on the macroscale. The technique uses electron microscopy with mechanical testing in situ; it could accelerate new materials for nuclear power applications and improve testing of nuclear power plants already in service. ... > full story
Smarter memory device holds key to greener gadgets (June 27, 2011) -- Fast, low-energy memory for MP3s, smartphones and cameras could become a reality thanks to a new development. ... > full story
Fermilab experiment weighs in on neutrino mystery (June 27, 2011) -- Scientists have just announced the results from a search for a rare phenomenon, the transformation of muon neutrinos into electron neutrinos. The result is consistent with and significantly constrains a measurement reported 10 days ago by the Japanese T2K experiment, which announced an indication of this type of transformation. ... > full story
Generating 'green' electricity: Waste heat converted to electricity using new alloy (June 27, 2011) -- Engineering researchers have recently discovered a new alloy material that converts heat directly into electricity. This revolutionary energy conversion method is in the early stages of development, but it could have wide-sweeping impact on creating environmentally friendly electricity from waste heat sources. ... > full story
New tool makes programs more efficient without sacrificing safety functions (June 27, 2011) -- Computer programs are incorporating more and more safety features to protect users, but those features can also slow the programs down by 1,000 percent or more. Researchers have developed a software tool that helps these programs run much more efficiently without sacrificing their safety features. ... > full story
Small asteroid to whip past Earth on June 27, 2011 (June 27, 2011) -- Near-Earth asteroid 2011 MD will pass only 12,000 kilometers (7,500 miles) above Earth's surface on Monday, June 27 at about 9:30 EDT. The asteroid was discovered by the LINEAR near-Earth object discovery team observing from Socorro, New Mexico. This small asteroid, only 5-20 meters in diameter, is in a very Earth-like orbit about the Sun, but an orbital analysis indicates there is no chance it will actually strike Earth on Monday. ... > full story
'Atom-scale’ switches for revolutionary low-power computer processor developed (June 27, 2011) -- Revolutionary low-power logic systems that will perform instant on/off logic operations are being developed by research scientists. ... > full story
A breath of fresh air for detecting vitamin B12 deficiency (June 26, 2011) -- Researchers have developed a new test to detect the levels of vitamin B12 using your breath, allowing for a cheaper, faster, and simpler diagnosis that could help to avoid the potentially fatal symptoms of B12 deficiency. ... > full story
Space research gives birth to new ultrasound tools for health care in orbit, on Earth (June 26, 2011) -- Space biomedical researchers have developed tools that expand the use of ultrasound to provide better health care for astronauts during flight. The benefits are not just limited to spaceflight, though. These tools are now being used to improve health care around the world, especially in remote and underserved locations. ... > full story
'Orca ears' inspire researchers to develop ultrasensitive undersea microphone (June 25, 2011) -- Researchers have developed a microphone that can be used at any depth in the ocean, even under crushing pressure, and is sensitive to a wide range of sounds, from a whisper in a library to an explosion of TNT. They modeled their device after the extraordinarily acute hearing of orcas. ... > full story
'Quantum magic' without any 'spooky action at a distance' (June 25, 2011) -- Quantum mechanical entanglement is at the heart of the famous quantum teleportation experiment and was referred to by Albert Einstein as "spooky action at a distance". Researchers have used a system which does not allow for entanglement, and still found results which cannot be interpreted classically. ... > full story
Tracing cancer back to its source using computer dissection (June 25, 2011) -- A new computer-based system can distinguish between apparently similar secondary tumors and allow a cancer specialist to trace the metastases back to the site of the original cancer in the patient's body. ... > full story
New insights into the cohesive forces of crystal structures (June 25, 2011) -- A new study has shown that under certain conditions the interactions between carbon-hydrogen (CH) groups, commonly found in organic compounds, may be much stronger than previously thought. ... > full story
Astronomers reach for the stars to discover new cancer therapy (June 25, 2011) -- Research on celestial bodies may have an impact on the human body. Astronomers are working with medical physicists and radiation oncologists to develop a potential new radiation treatment -- one that is intended to be tougher on tumors, but gentler on healthy tissue. ... > full story
Mantis shrimp eye could improve high-definition CDs, DVDs (June 24, 2011) -- The eye of the peacock mantis shrimp has led an international team of researchers to develop a two-part waveplate that could improve CD, DVD, blu-ray and holographic technology, creating even higher definition and larger storage density. ... > full story
High technology, not low taxes, may drive US states' economic growth (June 24, 2011) -- High-tech training may trump tax breaks for creating more jobs and improving a state's economy, according to a new study by economists. ... > full story
Optical circuit enables new approach to quantum technologies (June 24, 2011) -- Scientists have demonstrated a fundamental building block for quantum computing that could soon be employed in a range of quantum technologies. ... > full story
Genes at the flick of a light switch: Human cells fitted with synthetic signaling cascade (June 24, 2011) -- Researchers from Switzerland have fitted human cells with a synthetic signaling cascade that can be used to switch on and regulate genes via blue light. This "gene light switch" makes interesting therapies possible, which could be used to treat type 2 diabetes, for instance. ... > full story
Sun and planets constructed differently than thought, NASA mission suggests (June 24, 2011) -- Researchers analyzing samples returned by NASA's 2004 Genesis mission have discovered that our sun and its inner planets may have formed differently than previously thought. ... > full story
Next-generation gene sequencing brings personal genomics closer, IDs mutation in new syndrome (June 24, 2011) -- Harnessing the new generation of rapid, highly accurate gene-sequencing techniques, a research team has identified the disease-causing mutation in a newly characterized rare genetic disease, by analyzing DNA from just a few individuals. The power and speed of the innovative bioinformatics tool marks a step toward personalized genomics -- discovering causative mutations in individual patients. The previously unknown lethal syndrome has affected infant boys in two unrelated families. ... > full story
Physicist's discovery alters conventional understanding of sight (June 24, 2011) -- Physicists shed new light on how the visual process is initiated. For almost 50 years, scientists have believed that light signals could not be initiated unless special light-receptor molecules in the retinal cells first changed their shape in a process called isomerization. However, researchers have now demonstrated that visual signals can be initiated in the absence of isomerization. ... > full story
Brain-like computing a step closer to reality (June 24, 2011) -- The development of 'brain-like' computers has taken a major step forward. A new study involved the first ever demonstration of simultaneous information processing and storage using phase-change materials. This new technique could revolutionize computing by making computers faster and more energy-efficient, as well as making them more closely resemble biological systems. ... > full story
Building a better math teacher (June 24, 2011) -- For years, it has been assumed that teachers -- specifically math teachers -- need to master the content they intend to teach. And the best way to do this is to take courses beyond that content. Yet new research does not support this common belief. There is little evidence that advanced courses in mathematics contribute to more effective teaching. ... > full story
Physicists observe 'campfire effect' in blinking nanorod semiconductors (June 24, 2011) -- When semiconductor nanorods are exposed to light, they blink in a seemingly random pattern. By clustering nanorods together, physicists at the University of Pennsylvania have shown that their combined "on" time is increased dramatically providing new insight into this mysterious blinking behavior. ... > full story
Smaller companies hit hardest during emerging market crises (June 24, 2011) -- A study of the reaction by the United States stock market to international financial crises shows that small companies are often hit hardest, and the impact is above and beyond what would be expected given their exposure to global market factors. ... > full story
When matter melts: Scientists map phase changes in quark-gluon plasma (June 24, 2011) -- For a few millionths of a second after the big bang, quarks could move freely, but soon normal matter "froze out" of this quark-matter soup. For the first time scientists have compared quantum theory calculations and data from the STAR experiment at Brookhaven's Relativistic Heavy Ion Collider to map out the energies and temperatures where ordinary matter melts and the quark-gluon plasma freezes. ... > full story
Computational software provides rapid identification of disease-causing gene variations (June 24, 2011) -- Scientists have developed a new software tool called VAAST, the Variant Annotation, Analysis and Selection Tool -- a probabilistic disease-causing mutation finder for individual human genomes. ... > full story
Getting more innovative with Facebook? (June 24, 2011) -- Digital meeting places are one of the initiatives that can provide more innovative workplaces, according to new study. ... > full story
Flames of Betelgeuse: New image reveals vast nebula around famous supergiant star (June 23, 2011) -- Astronomers have imaged a complex and bright nebula around the supergiant star Betelgeuse in greater detail than ever before. This structure, which resembles flames emanating from the star, is formed as the behemoth sheds its material into space. ... > full story
Smartphone app helps you find friends in a crowd (June 23, 2011) -- Can a smartphone app enable meaningful, face-to-face conversation? Engineers are trying to find out, with software that helps people locate their friends in a crowd -- and make new friends who share similar interests. ... > full story
Dawn spacecraft nears start of year-long stay at giant asteroid Vesta (June 23, 2011) -- NASA's Dawn spacecraft is on track to begin the first extended visit to a large asteroid. The mission expects to go into orbit around Vesta on July 16 and begin gathering science data in early August. Vesta resides in the main asteroid belt and is thought to be the source of a large number of meteorites that fall to Earth. ... > full story
Model helps pinpoint cyanobacterial genes that capture the sun's energy (June 23, 2011) -- A new model of the single-celled marine cyanobacterium Cyanothece could help researchers use blue-green algae to make renewable energy by predicting which of its genes are central to capturing energy from sunlight. ... > full story
Scientists a step closer to understanding 'natural antifreeze' molecules (June 23, 2011) -- Scientists have made an important step forward in their understanding of cryoprotectants -- compounds that act as natural "antifreeze" to protect drugs, food and tissues stored at sub-zero temperatures. ... > full story
Youth cybercrime linked to friends' influence (June 23, 2011) -- Peer influence and low self-control appear to be the major factors fueling juvenile cybercrime such as computer hacking and online bullying, according to a new study. ... > full story
Properties of 'confined' water within single-walled carbon nanotube pores clarified (June 23, 2011) -- Water and ice may not be among the first things that come to mind when you think about single-walled carbon nanotubes, but a Japan-based research team hoping to get a clearer understanding of the phase behavior of confined water in the cylindrical pores of carbon nanotubes zeroed in on confined water's properties and made some surprising discoveries. ... > full story
Harnessing electron spin: Toward a new breed of computers that can process data using less power (June 23, 2011) -- Harnessing the magnetic moment, or spin, of electrons rather than their electric charge, physicists have achieved a breakthrough toward the development of a new breed of computing devices that can process data using less power. ... > full story
New technique yields troves of information from nanoscale bone samples (June 23, 2011) -- A new technique allows researchers to collect large amounts of biochemical information from nanoscale bone samples. Along with adding important new insights into the fight against osteoporosis, this innovation opens up an entirely new proteomics-based approach to analyzing bone quality. It could even aid the archeological and forensic study of human skeletons. ... > full story
'Super sand' for better purification of drinking water (June 23, 2011) -- Scientists have developed a way to transform ordinary sand -- a mainstay filter material used to purify drinking water throughout the world -- into a "super sand" with five times the filtering capacity of regular sand. The new material could be a low-cost boon for developing countries, where more than a billion people lack clean drinking water, according to a new article. ... > full story
Electrical water detection (June 23, 2011) -- A quick and easy way to detect groundwater in semi-arid hard rock areas that is also economical could improve the siting of borewells to improve clean water supply in the developing world. ... > full story
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