Sunday, April 24, 2011

ScienceDaily Technology Headlines -- for the Week of April 17 to April 24, 2011

ScienceDaily Technology Headlines

for the Week of April 17 to April 24, 2011

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ScienceDaily Environment Headlines -- for the Week of April 17 to April 24, 2011

ScienceDaily Environment Headlines

for the Week of April 17 to April 24, 2011

Welcome to another edition of ScienceDaily's email newsletter. You can change your subscription options or unsubscribe at any time.


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ScienceDaily Technology Headlines -- for Sunday, April 24, 2011

ScienceDaily Technology Headlines

for Sunday, April 24, 2011

Welcome to another edition of ScienceDaily's email newsletter. You can change your subscription options or unsubscribe at any time.


Starting a new metabolic path: New technique will help metabolic engineering (April 23, 2011) -- Researchers have demonstrated a new technique that speeds up and improves the identification and quantification of proteins within a cell or micoorganism. Called "targeted proteomics," the new technique is expected to be an important new tool for the fields of metabolic engineering and synthetic biology. ... > full story

Scientists engineer nanoscale vaults to encapsulate 'nanodisks' for drug delivery (April 23, 2011) -- The first steps toward the development of the vault nanoparticle into a versatile and effective DDS are reported in this paper. The ability to encapsulate therapeutic compounds into the vault is a critical and fundamental obstacle in their development for small-molecule drug delivery. Recombinant vaults are engineered to encapsulate the highly insoluble and toxic hydrophobic compound all-trans retinoic acid (ATRA) using a vault-binding lipoprotein complex that forms a lipid bilayer nanodisk. ... > full story

Large Hadron Collider sets world record beam intensity (April 23, 2011) -- CERN's Large Hadron Collider (LHC) has set a new world record for beam intensity at a hadron collider, exceeding the previous world record set by the US Fermi National Accelerator Laboratory's Tevatron collider in 2010, and marks an important milestone in LHC commissioning. ... > full story

Functioning synapse created using carbon nanotubes: Devices might be used in brain prostheses or synthetic brains (April 22, 2011) -- Engineering researchers have made a significant breakthrough in the use of nanotechnologies for the construction of a synthetic brain. They have built a carbon nanotube synapse circuit whose behavior in tests reproduces the function of a neuron, the building block of the brain. ... > full story

'Time machine' made to visually explore space and time in videos: Time-lapse GigaPans provide new way to access big data (April 22, 2011) -- Researchers have leveraged the latest browser technology to create GigaPan Time Machine, a system that enables viewers to explore gigapixel-scale, high-resolution videos and image sequences by panning or zooming in and out of the images while simultaneously moving back and forth through time. ... > full story

Huge dry ice deposit on Mars: NASA orbiter reveals big changes in Red Planet's atmosphere (April 22, 2011) -- NASA's Mars Reconnaissance Orbiter has discovered the total amount of atmosphere on Mars changes dramatically as the tilt of the planet's axis varies. This process can affect the stability of liquid water, if it exists on the Martian surface, and increase the frequency and severity of Martian dust storms. Researchers using the orbiter's ground-penetrating radar identified a large, buried deposit of frozen carbon dioxide, or dry ice, at the Red Planet's south pole. The scientists suspect that much of this carbon dioxide enters the planet's atmosphere and swells the atmosphere's mass when Mars' tilt increases. ... > full story

Limit to nanotechnology mass-production? (April 22, 2011) -- A leading nanotechnology scientist has raised questions over a billion dollar industry by boldly claiming that there is a limit to how small nanotechnology materials can be mass produced. ... > full story

Why biggest stellar explosions often happen in tiniest galaxies: Ultraviolet probe sheds light on mystery (April 21, 2011) -- Astronomers using NASA's Galaxy Evolution Explorer may be closer to knowing why some of the most massive stellar explosions ever observed occur in the tiniest of galaxies. ... > full story

RNA nanoparticles constructed to safely deliver long-lasting therapy to cells (April 21, 2011) -- Though RNA is viewed as a promising tool in nanotherapy, the difficulties of producing stable and long-lasting therapeutic RNA have posed challenges to research. A biomedical engineering professor has detailed the successful production of large RNA nanoparticles from smaller RNA segments. The nanoparticles had a half life of between five and 10 hours in animal models and targeted cancer cells in vivo to release therapeutics. ... > full story

Does video game violence harm teens? New study weighs the evidence (April 21, 2011) -- How much scientific evidence is there for and against the assertion that exposure to video game violence can harm teens? Three researchers have developed a novel method to consider that question: they analyzed the research output of experts who filed a brief in a US Supreme Court case involving violent video games and teens. ... > full story

Material that if scratched, you can quickly and easily fix yourself, with light not heat (April 21, 2011) -- A team of researchers in the United States and Switzerland has developed a polymer-based material that can heal itself with the help of a widely used type of lighting. Called "metallo-supramolecular polymers," the material is capable of becoming a supple liquid that fills crevasses and gaps left by scrapes and scuffs when placed under ultraviolet light for less than a minute and then resolidifying. The paper will publish this week in journal Nature. ... > full story

Kids' 'screen time' linked to early markers for cardiovascular disease (April 21, 2011) -- Children who had the most hours of screen time, particularly in front of the television, had narrower arteries in the eyes -- a possible indicator for future heart disease risk, according to a new study. Children with the highest levels of physical activity had wider retinal arterioles. The magnitude of vessel narrowing for each hour of screen time was similar to a 10 millimeter of mercury rise in systolic blood pressure. ... > full story


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