Senin, 04 Oktober 2010

ScienceDaily Technology Headlines

for Monday, October 4, 2010

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Fungal spores travel farther by surfing their own wind (October 4, 2010) -- Many fungi, including the destructive Sclerotinia, spew thousands of spores at once to give the spores an extra boost into their host plants. Researchers now show how this works. The near-simultaneous ejection of spores reduces drag to nearly zero and creates a wind that carries some of the spores 20 times farther than a single spore could travel solo. ... > full story

An elegant galaxy in an unusual light (October 4, 2010) -- A new image taken with the powerful HAWK-I camera on ESO's Very Large Telescope at Paranal Observatory in Chile shows the beautiful barred spiral galaxy NGC 1365 in infrared light. NGC 1365 is a member of the Fornax cluster of galaxies, and lies about 60 million light-years from Earth. ... > full story

Launch of Germ Genie to kill keyboard germs (October 4, 2010) -- Scientists in the UK have helped prove the effectiveness of Germ Genie, a tool to prevent infections from keyboards. ... > full story

Milky Way sidelined in galactic tug-of-war, computer simulation shows (October 3, 2010) -- The Magellanic Stream is an arc of hydrogen gas spanning more than 100 degrees of the sky behind the Milky Way's neighbor galaxies, the Large and Small Magellanic Clouds. Our home galaxy has long been thought to be the dominant gravitational force in forming the Stream. A new computer simulation now shows that the Magellanic Stream resulted from a past close encounter between these dwarf galaxies rather than effects of the Milky Way. ... > full story

Individual mutations are very slow to promote tumor growth, mathematical modeling shows (October 3, 2010) -- Individual cancer-causing mutations have a minute effect on tumor growth, increasing the rate of cell division by just 0.4 percent on average, according to new mathematical modeling. The research reinforces that cancer is the culmination of many accumulated mutations, and highlights the fundamental heterogeneity and randomness of many cancers. ... > full story

Turning waste heat into power (October 3, 2010) -- Physicists have discovered a new way of harvesting waste heat and turning it into electrical power. Taking advantage of quantum effects, the technology holds great promise for making cars, power plants, factories and solar panels more efficient. ... > full story

Citizen scientist: Helping scientists help themselves (October 3, 2010) -- Researchers have mapped out an approach to virtual organizations that might allow scientific advances made in part by citizen scientists to move forward much more quickly. ... > full story

Physicists break color barrier for sending, receiving photons (October 2, 2010) -- Scientists have invented a method to change the color of single photons in a fiber optic cable. The laser-tweaked feat could be a quantum step forward for transferring and receiving high volumes of secured data for future generations of the Internet. ... > full story

Lightweight construction materials: Suitable for car wheels? (October 2, 2010) -- Are lightweight construction materials suitable for extremely stressed and safety-relevant components such as car wheel? Tests and calculations show that fiber-reinforced plastics are highly damage-tolerant and distinctly superior to aluminum in car wheels. Researchers have already produced a prototype lightweight wheel. ... > full story

Catalyst sandwich: Synthetic PCR mimic could lead to highly sensitive medical, environmental diagnostics (October 2, 2010) -- Researchers have taken another step towards realizing a new class of PCR enzyme mimics, opening the door for the development of highly sensitive chemical detection systems that go beyond nucleic acid targets. The blueprint for building synthetic structures to detect and signal the presence of targets such as small molecule medical analytes and environmental hazards is inspired by biology. The method also could be useful in catalysis and the production of polymers. ... > full story

Underwater robot swims free thanks to wireless controller (October 1, 2010) -- A waterproof controller is allowing an underwater robot, dubbed "AQUA," to go "wireless." While underwater, divers can program the tablet to display tags onscreen, similar to barcodes read by smartphones. The robot's on-board camera scans these tags to receive and carry out commands. ... > full story

Three solid-state qubits entangled: Big step toward quantum error correction (October 1, 2010) -- A research team has achieved the quantum entanglement of three solid-state qubits, or quantum bits, for the first time. Their accomplishment represents the first step towards quantum error correction, a crucial aspect of future quantum computing. ... > full story

New way to view atomic motion of proteins invented (October 1, 2010) -- Using myoglobin, physicists have developed a new way to peer into the inner workings of proteins and detect which specific atoms are at work. ... > full story

Knot in the ribbon at the edge of the solar system 'unties' (October 1, 2010) -- The unusual "knot" in the bright, narrow ribbon of neutral atoms emanating in from the boundary between our solar system and interstellar space appears to have "untied," according to new research. ... > full story

Simple approach could clean up oil remaining from Exxon Valdez spill (October 1, 2010) -- Traces of crude oil that linger on the shores of Alaska's Prince William Sound after the Exxon Valdez oil spill remain highly biodegradable, despite almost 20 years of weathering and decomposition, scientists are reporting in a new study. Their findings suggest a simple approach for further cleaning up remaining traces of the Exxon Valdez spill -- the largest in US waters until the 2010 Deepwater Horizon episode. ... > full story

Spring on Titan brings sunshine and patchy clouds (October 1, 2010) -- The northern hemisphere of Saturn's moon Titan is set for mainly fine spring weather, with polar skies clearing since the equinox in August last year. The visual and infrared mapping spectrometer (VIMS) aboard NASA's Cassini spacecraft has been monitoring clouds on Titan regularly since the spacecraft entered orbit around Saturn in 2004. Now, researchers have analyzed more than 2,000 VIMS images to create the first long-term study of Titan's weather using observational data that also includes the equinox. ... > full story

Finding a buckyball in a photovoltaic cell (October 1, 2010) -- A new technique analyzes the reflection of neutrons to locate buckyballs within composite materials. The work may lead to more effective research on photovoltaic devices. ... > full story

'e-SMART' technologies may help young adults self-manage mental illness (October 1, 2010) -- While many young adults will share the details of their daily lives with dozens -- sometimes hundreds -- of friends on Facebook, communicating with their health care providers about mental illness is another story. A researcher is now developing new patient communications tools, using computer-based techniques to reach young adults already tied to their technology devices. ... > full story

Researchers find phone apps sending data without notification; TaintDroid tool IDs untrustworthy apps (October 1, 2010) -- TaintDroid, a prototype extension to the Android mobile-phone platform designed by researchers, recently identified that 15 of 30 randomly selected, popular, free Android Marketplace applications sent users' private information to remote advertising servers and two-thirds of the apps handled data in ambiguous ways. ... > full story

Species accumulate on Earth at slower rates than in the past, computational biologists say (October 1, 2010) -- Computational biologists say that species are still accumulating on Earth but at a slower rate than in the past. ... > full story

Mars Rover Opportunity approaching possible meteorite (October 1, 2010) -- Images that NASA's Mars Exploration Rover Opportunity took at the end of an 81-meter (266-foot) drive on Sept. 16 reveal a dark rock about 31 meters (102 feet) away. The rover's science team has decided to go get a closer look at the toaster-sized rock and determine whether it is an iron meteorite. ... > full story

Growth of biofuel industry hurt by GMO regulations, say experts (October 1, 2010) -- Faster development of the promising field of cellulosic biofuels -- the renewable energy produced from grasses and trees -- is being significantly hampered by a "deep and thorny regulatory thicket" that makes almost impossible the use of advanced gene modification methods, researchers say. ... > full story

IBEX finds surprising changes at solar boundary (September 30, 2010) -- When NASA launched the Interstellar Boundary Explorer (IBEX) on Oct. 19, 2008, space physicists held their collective breath for never-before-seen views of a collision zone far beyond the planets, roughly 10 billion miles away. That's where the solar wind, an outward rush of charged particles and magnetic fields continuously spewed by the Sun, runs into the flow of particles and fields that permeates interstellar space in our neighborhood of the Milky Way galaxy. ... > full story

New 'standard cigarette' available for fire-resistance testing (September 30, 2010) -- An unusual new industrial testing product from the U.S. National Institute of Standards and Technology -- a cigarette deliberately designed to burn stronger than others -- will be used by manufacturers of home furnishings to test the fire resistance of their products. ... > full story

Bedouin tribe reveals secrets to 'GA-JOE' high-tech genome analyzer (September 30, 2010) -- Scientists studied three patients from biologically interrelated Bedouin families, and sent samples to Canada for analysis by GA JOE -- a high-tech genome analyzing machine. They discovered that mutations in the gene SCARF2 are responsible for Van Den Ende-Gupta syndrome. ... > full story

Hydrogen fuel for thought: Metallacarboranes may meet DOE storage goals (September 30, 2010) -- New research suggests that a class of material known as metallacarborane could store hydrogen at or better than benchmarks set by the US Department of Energy Hydrogen Program for 2015. ... > full story

Growing nanowires horizontally yields new benefit: 'nano-LEDs' (September 30, 2010) -- While refining their novel method for making nanoscale wires, chemists discovered an unexpected bonus -- a new way to create nanowires that produce light similar to that from light-emitting diodes. ... > full story

Research lays foundation for building on the Moon -- or anywhere else (September 30, 2010) -- The key to the stability of any building is its foundation, but it is difficult to test some building sites in advance -- such as those on the moon. New research is helping resolve the problem by using computer models that can utilize a small sample of soil to answer fundamental questions about how soil at a building site will interact with foundations. ... > full story

New views of Saturn's aurora, captured by Cassini (September 30, 2010) -- A new movie and images showing Saturn's shimmering aurora over a two-day period are helping scientists understand what drives some of the solar system's most impressive light shows. ... > full story

Nanotechnology brings personalized therapy one step closer to reality (September 30, 2010) -- A novel technology can make nanoscale protein measurements, which scientists can use in clinical trials to learn how drugs work. ... > full story

Atmosphere checked, one Mars year before a landing (September 30, 2010) -- What will the Martian atmosphere be like when the next Mars rover descends through it for landing in August of 2012? An instrument studying the Martian atmosphere from orbit has begun a four-week campaign to characterize daily atmosphere changes, one Mars year before the arrival of the Mars Science Laboratory rover, Curiosity. A Mars year equals 687 Earth days. ... > full story

One-dimensional window on superconductivity, magnetism: Atoms are proxies for electrons in ultracold optical emulator (September 30, 2010) -- A team of physicists is reporting the first success from a three-year effort to emulate superconductors with ultracold atoms trapped in grids of laser beams. A new study describes how the group trapped atoms in a one-dimensional tube of light, which allowed them to simultaneously examine superconductivity and magnetism -- phenomena that do not generally coexist. ... > full story

Laser tool for studying Mars rocks (September 30, 2010) -- The NASA Mars Science Laboratory Project's rover, Curiosity, will carry a newly delivered laser instrument named ChemCam to reveal what elements are present in rocks and soils on Mars up to 7 meters (23 feet) away from the rover. ... > full story

Hello, Saturn summer solstice: Cassini's new chapter (September 30, 2010) -- Turning a midsummer night's dream into reality, NASA's Cassini spacecraft begins its new mission extension -- the Cassini Solstice Mission. The mission extension will take Cassini a few months past Saturn's northern summer solstice (or midsummer) through September 2017. It will enable scientists to study seasonal changes and other long-term weather changes on Saturn and its moons. ... > full story

Wide-Field Imager selected for Solar Probe Plus mission (September 30, 2010) -- NASA has chosen the Naval Research Laboratory's Wide-field Imager to be part of the Solar Probe Plus mission slated for launch no later than 2018. The Solar Probe Plus, a small car-sized spacecraft will plunge directly into the sun's atmosphere approximately four million miles from our star's surface. It will explore a region no other spacecraft ever has encountered in an effort to unlock the sun's biggest mysteries. ... > full story

New key to tissue regeneration: Drug treatment triggers sodium ions to regrow nerves and muscle (September 29, 2010) -- Tufts biologists have regenerated spinal cord and muscle by triggering an influx of sodium ions into injured cells. The approach breaks new ground in biomedicine because it requires no gene therapy; can be administered after an injury has occurred; and is bioelectric, rather than chemically based. The treatment is most directly applicable to spinal cord repair and limb loss. Proof-of-principle may apply to many complex tissues. ... > full story

Purifying proteins: Researchers use NMR to improve drug development (September 29, 2010) -- The purification of drug components is a large hurdle facing modern drug development. This is particularly true of drugs that utilize proteins, which are notoriously difficult to separate from other potentially deadly impurities. Scientists are using nuclear magnetic resonance (NMR) to understand and improve an important protein purification process. ... > full story

Model aims to reduce disaster toll on city's social, economic fabric (September 29, 2010) -- Researchers have created a computer model that predicts how a disaster's impact on critical infrastructure would affect a city's social and economic fabric, a potential tool to help reduce the severity of impacts, manage the aftermath of catastrophe and fortify infrastructure against future disasters. ... > full story

New oil detection technique (September 29, 2010) -- Australian scientists have developed a revolutionary technique for the rapid on-site detection and quantification of petroleum hydrocarbons (commonly derived from crude oil) in soil, silt, sediment or rock. ... > full story

Newly discovered planet may be first truly habitable exoplanet (September 29, 2010) -- A team of planet hunters has announced the discovery of an Earth-sized planet (three times the mass of Earth) orbiting a nearby star at a distance that places it squarely in the middle of the star's "habitable zone," where liquid water could exist on the planet's surface. If confirmed, this would be the most Earth-like exoplanet yet discovered and the first strong case for a potentially habitable one. ... > full story

Carbon nanoobjects to facilitate the construction of futuristic power sources (September 29, 2010) -- Scientists from Poland are working on electrodes that have surfaces covered with layers of carbon nanoparticles and enzymes. These electrodes can be used to produce modern sensors and power sources, including such futuristic ones as biological fuel cells installed inside the human body and fueled by substances contained in blood. ... > full story

Better surgery with new surgical robot with force feedback (September 29, 2010) -- A compact surgical robot, which uses 'force feedback' to allow surgeons to feel what they are doing, has just been developed. ... > full story

Twitter used to predict flu outbreaks (September 29, 2010) -- Keeping track of disease trends such as influenza outbreaks has the potential to be far quicker and less costly by monitoring a social network program such as Twitter than following the traditional methods of disease surveillance, according to a computer science expert. ... > full story

Making music on a microscopic scale (September 29, 2010) -- Strings a fraction of the thickness of a human hair, with microscopic weights to pluck them: Researchers and students have succeeded in constructing the first musical instrument with dimensions measured in mere micrometers -- a 'micronium' -- that produces audible tones. A composition has been specially written for the instrument. ... > full story

Mining the 'wisdom of crowds' to attack disease (September 29, 2010) -- A large, multidisciplinary panel has recently selected 12 pioneering ideas for attacking type 1 diabetes, ideas selected through a "crowd-sourcing" experiment called the Challenge in which all members of the Harvard community, as well as members of the general public, were invited to answer the question: What do we not know to cure type 1 diabetes? ... > full story

Tiny generators turn waste heat into power (September 29, 2010) -- Researchers have uncovered a novel way to power tiny devices using waste heat. Arrays of tiny ferroelectric nanowires have been shown to rapidly generate a current in response to any change in the ambient temperature. ... > full story

NASA's Webb Telescope unique structural 'heart' passes extreme tests (September 29, 2010) -- NASA engineers have created a unique engineering marvel called the ISIM structure that recently survived exposure to extreme cryogenic temperatures, showing that the structure will remain stable when exposed to the harsh environment of space. The material that comprises the structure, as well as the bonding techniques used to join its roughly 900 structural components, were all created from scratch. ... > full story

Single electron reader opens path for quantum computing (September 29, 2010) -- A team led by engineers and physicists in Australia has developed one of the key building blocks needed to make a quantum computer using silicon: a "single electron reader." ... > full story


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