Minggu, 12 September 2010

ScienceDaily Technology Headlines

for Sunday, September 12, 2010

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E. coli engineered to produce biodiesel (September 11, 2010) -- New research is shedding light on how to alter the genetic makeup of E. coli to produce biodiesel fuel derived from fatty acids. ... > full story

Yikes! Sensor measures yoctonewton forces fast (September 11, 2010) -- Physicists have used a small crystal of ions (electrically charged atoms) to detect forces at the scale of yoctonewtons. Measurements of slight forces -- one yoctonewton is equivalent to the weight of a single copper atom on Earth -- can be useful in force microscopy, nanoscale science, and tests of fundamental physics theories. ... > full story

Computer models suggest treatments for fractures that won't heal (September 11, 2010) -- New models, reinforced by in vivo experimentation, show why 5-10 percent of bone fractures don't heal properly, and how these cases may be treated to restart the healing process. Results of the model may benefit the aging population in which the occurrence of bone fractures is expected to rise substantially in the near future. ... > full story

Micro rheometer is latest 'lab on a chip' device (September 11, 2010) -- Researchers have demonstrated a micro-miniaturized device that can make complex viscosity measurements -- critical data for a wide variety of fields dealing with things that have to flow -- on sample sizes as small as a few nanoliters. ... > full story

New CCTV technology to help prevent terror attacks (September 11, 2010) -- Numerous CCTV systems are in use in public places which have the capacity to gather large amounts of image material. For the time being, however, there are no effective ways to analyze the mass of video data automatically and recognize potential risk situations in advance. A new European research project is aimed at developing IT solutions to this end. ... > full story

A Nearby Galactic Exemplar (September 11, 2010) -- ESO has released a spectacular new image of NGC 300, a spiral galaxy similar to the Milky Way, and located in the nearby Sculptor Group of galaxies. Taken with the Wide Field Imager (WFI) at ESO's La Silla Observatory in Chile, this 50-hour exposure reveals the structure of the galaxy in exquisite detail. NGC 300 lies about six million light-years away and appears to be about two thirds the size of the full Moon on the sky. ... > full story

New model may simplify high-dose radiosurgery planning (September 11, 2010) -- There is yet no straightforward way to determine the optimal dose level and treatment schedules for high-dose radiation therapies such as stereotactic radiation therapy, which is used to treat brain and lung cancer, or for high-dose brachytherapy for prostate and other cancers. Radiation oncology researchers may have solved the problem with a new mathematical model called the Generalized LQ (gLQ) Model that encompasses all dose levels and schedules. ... > full story

Caught in the act: Fireballs light up Jupiter (September 10, 2010) -- Amateur astronomers working with professional astronomers have spotted two fireballs lighting up Jupiter's atmosphere this summer, marking the first time Earth-based telescopes have captured relatively small objects burning up in the atmosphere of the giant planet. The two fireballs -- which produced bright freckles on Jupiter that were visible through backyard telescopes -- occurred on June 3, 2010, and August 20, 2010, respectively. ... > full story

Neurons: Faster than thought and able to multiply (September 10, 2010) -- Using computer simulations of brain-like networks, researchers from Germany and Japan have discovered why nerve cells transmit information through small electrical pulses. The process not only allows the brain to process information much faster than previously thought, but also single neurons are already able to multiply, opening the door to more complex forms of computing. ... > full story

Graphene may hold key to speeding up DNA sequencing (September 10, 2010) -- Researchers have demonstrated that graphene can act as an artificial membrane separating two liquid reservoirs. By drilling a tiny pore just a few-nanometers in diameter, called a nanopore, in the graphene membrane, they were able to measure exchange of ions through the pore and demonstrated that a long DNA molecule can be pulled through the graphene nanopore just as a thread is pulled through the eye of a needle. ... > full story

World's first transcontinental anesthesia: Researchers pioneer anesthetics via videoconferencing (September 10, 2010) -- Videoconferences may be known for putting people to sleep, but never like this. A team from McGill University's Department of Anesthesia achieved a world first on August 30, 2010, when they treated patients undergoing thyroid gland surgery in Italy remotely from Montreal, Canada. ... > full story

Tally-ho! Deep Impact spacecraft eyes comet target (September 10, 2010) -- On Sunday, Sept. 5, NASA's Deep Impact spacecraft beamed down the first of more than 64,000 images it's expected to take of Comet Hartley 2. The spacecraft, now on an extended mission known as EPOXI, has an appointment with the comet on Nov. 4, 2010. ... > full story


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