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5/24/12
| News
In
quantum physics physical processes in condensed matter and other
many-body systems can often be described with quasiparticles. For the
first time, a team of physicists in Austiri has succeeded in
experimentally realizing a new quasiparticle— a repulsive polaron—in an
ultracold quantum gas.
May 24 | News
Physicists have trapped and cooled exotic particles called excitons so effectively that they condensed and cohered to form a giant matter wave. This feat will allow scientists to better study the physical properties of excitons, which exist only fleetingly yet offer promising applications as diverse as efficient harvesting of solar energy and ultrafast computing.
May 24 | News
Dark
matter accounts for at least 80% of the matter in the universe. No one
knows what it is, but most scientists would bet on weakly interacting
massive particles, or WIMPs. LUX, the Large Underground Xenon detector
at the Sanford Underground Research Facility nearly a mile below the
Black Hills of South Dakota, holds 350 kg of liquid xenon and is a trap
set for dark-matter WIMPs.
20 hours ago | News
An
important chemical species, molecular oxygen is linear, has an
anisotropic shape, and spins from two unpaired electrons. However, until
now, we didn’t know how these properties influenced important oxidation
reactions. Researchers in Japan have now reported development of the
world's first molecular oxygen beam that can designate the alignment of
the molecular axis and spin direction.
20 hours ago | News
NLT Technologies, together with its sales and marketing channels in the Americas and Europe, Renesas Electronics America Inc. and Renesas Electronics Europe GmbH, announced the successful development of three mid-size color LCD modules based on projected capacitive touch panel technology.
21 hours ago | News
A seaweed considered a threat to the healthy growth of coral reefs in Hawaii may possess the ability to produce substances that could one day treat human diseases, a new study led by scientists at Scripps Institution of Oceanography at University of California, San Diego has revealed.
22 hours ago | News
Using
forensic-style chemical analysis, scientists in the U.K. and Germany
have directly linked seismic observations of the deadly 1980 Mount St.
Helens eruption to crystal growth within the magma chamber, the large
underground pool of liquid rock beneath the volcano. Building direct
links between observations at the surface and processes occurring
underground has been an ongoing problem for volcanologists.
22 hours ago | News
University of Michigan researchers have proven that a special surface, free of biological contaminants, allows adult-derived stem cells to thrive and transform into multiple cell types. Their success brings stem cell therapies another step closer.
22 hours ago | News
Scientists
at the Georgia Institute of Technology recently achieved a 17% increase
in boiling efficiency by using an acoustic field to enhance heat
transfer. The acoustic field does this by efficiently removing vapor
bubbles from the heated surface and suppressing the formation of an
insulating vapor film.
22 hours ago | News
Natural
pigments contain colorful molecules known as poryphyrins, which lend
vibrant colors through macrocyclic chemical structure that link several
small rings together in an “aromatic” framework. Sometimes, however,
synthesis causes the aromaticity to disappear. Researchers in Japan now
report a new way to manipulate the peculiar aromatic properties of
macrocycles.
23 hours ago | News
There's nothing like a new pair of eyeglasses to bring fine details into sharp relief. For scientists who study the large molecules of life from proteins to DNA, the equivalent of new lenses have come in the form of an advanced method for analyzing data from X-ray crystallography experiments. The findings could lead to new understanding of the molecules that drive processes in biology, medical diagnostics, nanotechnology, and other fields.
23 hours ago | News
Scientists from SLAC National Accelerator Laboratory, Stanford University, and Germany have figured out a key part of the industrial process for making methanol. It’s an important step toward improving the process—and eventually realizing the goal of turning a potent greenhouse gas, carbon dioxide, into fuel.
May 25 | News
Sensors that work flawlessly in laboratory settings may stumble when it comes to performing in real-world conditions, according to researchers at Oak Ridge National Laboratory. These shortcomings are important as they relate to safeguarding the nation's food and water supplies.
