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News tagged with barrier

Physicists Detect Single-Electron Tunneling with Quantum Dots

(PhysOrg.com) -- Detecting the coherent motion of a single electron is a challenge, for the simple reason of scale: the timescale of the coherent motion of a single-electron wave function is in the picosecond ...

Physics / Quantum Physics

created May 06, 2009 | popularity 3.8 / 5 (18) | comments 1 feature

Could a computer one day rewire itself? New nanomaterial ‘steers’ current in multiple dimensions

Scientists at Northwestern University have developed a new nanomaterial that can "steer" electrical currents. The development could lead to a computer that can simply reconfigure its internal wiring and become an entirely ...

Nanotechnology / Nanomaterials

created Oct 16, 2011 | popularity 5 / 5 (16) | comments 17 | with audio podcast

Scientists cultivate human brain's most ubiquitous cell in lab dish

Pity the lowly astrocyte, the most common cell in the human nervous system.

Biology / Biotechnology

created May 22, 2011 | popularity 4.5 / 5 (10) | comments 0 | with audio podcast

Better glasses-free 3-D: A fundamentally new approach

Nintendo's 3DS portable gaming system, the first commercial device with a glasses-free 3-D screen, has been available in the United States for barely a month, and it’s already sold more than a million ...

Technology / Engineering

created May 04, 2011 | popularity 4.2 / 5 (9) | comments 7 | with audio podcast

New charging method could greatly reduce battery recharge time

(PhysOrg.com) -- Part of the headache of having to constantly recharge batteries is not just how often they need to be charged, but also the time it takes to charge them. In a new study, researchers have proposed ...

Physics / General Physics

created Mar 11, 2010 | popularity 4.7 / 5 (25) | comments 14 | with audio podcast report

IBM Researchers Lower Language Barrier With Text Translator

IBM Researchers are helping to break the language barrier with the advent of technology dubbed "n.Fluent" -- smart software that translates text between English and 11 other languages. IBM employees use it to instantaneously ...

Technology / Computer Sciences

created Nov 23, 2009 | popularity 4.6 / 5 (5) | comments 0

Nanoparticles may cause DNA damage across a cellular barrier

(PhysOrg.com) -- Scientists have shown in the laboratory that metal nanoparticles damaged the DNA in cells on the other side of a cellular barrier. The research, by the University of Bristol, is published ...

Nanotechnology / Bio & Medicine

created Nov 05, 2009 | popularity 4.3 / 5 (9) | comments 1

Mantis shrimps could show us the way to a better DVD

(PhysOrg.com) -- The remarkable eyes of a marine crustacean could inspire the next generation of DVD and CD players, according to a new study from the University of Bristol published today in Nature Photonics.

Physics / Optics & Photonics

created Oct 25, 2009 | popularity 4.9 / 5 (19) | comments 5

Researchers discover a potential on-off switch for nanoelectronics

As electronic circuits shrink from finely etched lines in silicon wafers to nearly elusive proportions, researchers at the U.S. Department of Energy's Lawrence Berkeley National Laboratory and Columbia University ...

Nanotechnology / Nanophysics

created Mar 03, 2009 | popularity 4.9 / 5 (11) | comments 2

Research team devises a means for measuring quantum tunneling time

(Phys.org) -- In a bit of inspired research, a diverse team of researchers has devised a means for measuring the time it takes for an electron to tunnel through a barrier. Led by Israel's Weizmann Institute ...

Physics / Quantum Physics

created May 18, 2012 | popularity 5 / 5 (9) | comments 0 | with audio podcast report

'Green' nanoparticles, that may enhance medication delivery and improve MRI performance

Researchers at Harvard-affiliated McLean Hospital have shown a new category of "green" nanoparticles comprised of a non-toxic, protein-based nanotechnology that can non-invasively cross the blood brain barrier and is capable ...

Nanotechnology / Bio & Medicine

created May 02, 2012 | popularity 5 / 5 (2) | comments 0 | with audio podcast

Australia's Barrier Reef to get Google treatment

Australian scientists mapping the Great Barrier Reef will broadcast their findings in partnership with Google, emulating its "Street View" to spotlight the impact of climate change.

Technology / Other

created Mar 02, 2012 | popularity 4 / 5 (4) | comments 0

Coral embryos clone themselves

Forming a unique part of the animal kingdom, corals have built the only living entity visible from space; the Great Barrier Reef. Scientists from the Australian Institute of Marine Science (AIMS) have recently ...

Biology / Plants & Animals

created Mar 01, 2012 | popularity 5 / 5 (2) | comments 0 | with audio podcast

Black arsenic: Fact or fiction? Synthesis and identification of metastable compounds

(PhysOrg.com) -- Phosphorus and arsenic are on top of each other in one group of the periodic table, so they have many similar properties. In addition to tubular forms, phosphorus is found in white, red, black, ...

Chemistry / Materials Science

created Feb 17, 2012 | popularity 5 / 5 (1) | comments 1 | with audio podcast

Sea cucumbers: Dissolving coral reefs?

Coral reefs are extremely diverse ecosystems that support enormous biodiversity. But they are at risk. Carbon dioxide emissions are acidifying the ocean, threatening reefs and other marine organisms. New research led by Carnegie's ...

Space & Earth / Earth Sciences

created Dec 22, 2011 | popularity 5 / 5 (1) | comments 0 | with audio podcast