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Thursday, October 16, 2014

ScienceDaily: Top Technology News

ScienceDaily: Top Technology News

Optimal particle size for anticancer nanomedicines discovered

Posted: 15 Oct 2014 01:56 PM PDT

Nanomedicines consisting of nanoparticles for targeted drug delivery to specific tissues and cells offer new solutions for cancer diagnosis and therapy. In a recent study, researchers systematically evaluated the size-dependent biological profiles of three monodisperse drug-silica nanoconjugates to determine the optimum particle size for tissue penetration and tumor inhibition.

How can we be effectively warned not to give away our information online?

Posted: 15 Oct 2014 01:50 PM PDT

Two professors are figuring out the most effective ways we're influenced to give away personal information online and what warnings would be most effective to get us to stop.

Getting to know super-Earths: Using Hubble to study mysterious exoplanet

Posted: 15 Oct 2014 12:25 PM PDT

Results from NASA's Kepler mission have indicated that the most common planets in the galaxy are super-Earths -- those that are bigger than Earth but smaller than Neptune. We have no examples of these planets in our own solar system, so astronomers are using space telescopes to try to find out more about these worlds. Most recently they used Hubble to study the planet HD 97658b, in the constellation Leo.

Milky Way ransacks nearby dwarf galaxies

Posted: 15 Oct 2014 12:25 PM PDT

Astronomers have discovered that our nearest galactic neighbors, the dwarf spheroidal galaxies, are devoid of star-forming gas, and that our Milky Way Galaxy is to blame.

Weather history 'time machine' created

Posted: 15 Oct 2014 11:32 AM PDT

A software program that allows climate researchers to access historical climate data for the entire global surface (excluding the poles) has been developed. This software include the oceans, and is based statistical research into historical climates.

Potential Kuiper belt targets for new horizons Pluto mission

Posted: 15 Oct 2014 11:28 AM PDT

NASA's Hubble Space Telescope has uncovered three Kuiper Belt objects that the agency's New Horizons spacecraft could potentially visit after it flies by Pluto in July 2015.

Researchers develop world's thinnest electric generator

Posted: 15 Oct 2014 11:28 AM PDT

Researchers have made the first experimental observation of piezoelectricity and the piezotronic effect in an atomically thin material, molybdenum disulfide, resulting in a unique electric generator and mechanosensation devices that are optically transparent, extremely light, and very bendable and stretchable.

Global natural gas boom alone won't slow climate change

Posted: 15 Oct 2014 11:28 AM PDT

A new analysis of global energy use, economics and the climate shows that expanding the current bounty of inexpensive natural gas alone would not slow the growth of global greenhouse gas emissions worldwide. Recent advances in gas production technology based on horizontal drilling and hydraulic fracturing -- also known as fracking -- have led to bountiful, low-cost natural gas. Because gas emits far less carbon dioxide than coal, some researchers have linked the natural gas boom to recent reductions in greenhouse gas emissions in the United States. But could these advanced technologies also have an impact on emissions beyond North America and decades into the future?

Precision printing: Unique capabilities of 3-D printing revealed

Posted: 15 Oct 2014 10:06 AM PDT

Researchers have demonstrated an additive manufacturing method to control the structure and properties of metal components with precision unmatched by conventional manufacturing processes.

A brighter design emerges for low-cost, 'greener' LED light bulbs

Posted: 15 Oct 2014 08:23 AM PDT

The phase-out of traditional incandescent bulbs in the U.S. and elsewhere, as well as a growing interest in energy efficiency, has given light-emitting diode lighting a sales boost. However, that trend could be short-lived as key materials known as rare earth elements become more expensive. Scientists have now designed new materials for making household light-emitting diode bulbs without using these ingredients.

Researchers turn to 3-D technology to examine the formation of cliffband landscapes

Posted: 15 Oct 2014 08:23 AM PDT

A blend of photos and technology takes a new twist on studying cliff landscapes and how they were formed.

Key moment mapped in assembly of DNA-splitting molecular machine

Posted: 15 Oct 2014 08:21 AM PDT

Scientists reveal crucial steps and surprising structures in the genesis of the enzyme that divides the DNA double helix during cell replication. The research combined electron microscopy, perfectly distilled proteins, and a method of chemical freezing to isolate specific moments at the start of replication.

A unique approach to monitoring groundwater supplies near Ohio fracking sites

Posted: 15 Oct 2014 07:18 AM PDT

As fracking expands in Ohio, University of Cincinnati researchers are expanding their testing of private water wells. Hydraulic fracturing, or fracking, involves using millions of gallons of water mixed with sand and chemicals to break up organic-rich shale to release natural gas resources.

A new piece in the high-temperature superconductivity puzzle: 'Dressing' in superconductors

Posted: 15 Oct 2014 07:15 AM PDT

The physical mechanism that generates superconductivity in materials at high critical temperature (like cuprates, which appear to be among the most promising materials for technological applications) remains a mystery. So far, experimental observations haven't clarified if the phenomenon at work in conventional superconductors – at low critical temperature – and involving the "dressing" concept (as physicists call it) can also be seen in cuprates, but one study suggests that this might be the case.

Astronomers spot faraway Uranus-like planet: First 'ice giant' planet found in another solar system

Posted: 15 Oct 2014 07:13 AM PDT

Our view of other solar systems just got a little more familiar, with the discovery of a planet 25,000 light-years away that resembles our own Uranus. Astronomers have discovered hundreds of planets around the Milky Way, including rocky planets similar to Earth and gas planets similar to Jupiter. But there is a third type of planet in our solar system -- part gas, part ice -- and this is the first time anyone has spotted a twin for our so-called "ice giant" planets, Uranus and Neptune.

Construction secrets of a galactic metropolis: APEX reveals hidden star formation in protocluster

Posted: 15 Oct 2014 06:22 AM PDT

Astronomers have used the APEX telescope to probe a huge galaxy cluster that is forming in the early Universe and revealed that much of the star formation taking place is not only hidden by dust, but also occurring in unexpected places. This is the first time that a full census of the star formation in such an object has been possible.

New way of syncing music to video will revolutionize the production of TV/video ads

Posted: 15 Oct 2014 05:57 AM PDT

A researcher has shown that tiny tweaks to the soundtrack can make TV ads much more memorable, increasing their commercial impact. 

How the fruit fly could help us sniff out drugs and bombs

Posted: 14 Oct 2014 06:18 PM PDT

A fly's sense of smell could be used in new technology to detect drugs and bombs, new research has found. Brain scientists were surprised to find that the 'nose' of fruit flies can identify odors from illicit drugs and explosive substances almost as accurately as wine odor, which the insects are naturally attracted to because it smells like their favorite food, fermenting fruit.

Hydraulic fracturing linked to earthquakes in Ohio

Posted: 14 Oct 2014 06:17 PM PDT

Hydraulic fracturing triggered a series of small earthquakes in 2013 on a previously unmapped fault in Harrison County, Ohio, according to a new study.

Power of thorium for improved nuclear design explored by scientists

Posted: 14 Oct 2014 05:50 AM PDT

The development of a radical new type of nuclear power station that is safer, more cost-effective, compact, quicker and less disruptive to build than any previously constructed is underway.

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