Sunday 6 July 2014

Producing Hyperpolarized Xenon Gas on a Microfluidic Chip

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While big machines were once the stuff that scientific dreams are made of, analytical spectroscopy instrumentation has trended to smaller products that are portable, affordable, and fit into locations far removed from a standard laboratory, such as the back of an ambulance or inside a chemical reactor. “We are starting to follow that trend with NMR (nuclear magnetic resonance),” says Daniel Kennedy, a PhD candidate at the University of California (UC) Berkeley who works in the research group of Alexander Pines, a senior faculty scientist with Berkeley Lab’s Materials Science Division, and UC Berkeley’s Glenn T. Seaborg Professor of Chemistry. Shrinking the hardware to get away from multi-million dollar facilities is not the only issue with which Kennedy and Vikram Bajaj, a principal investigator in Alex Pines’ Berkeley Lab NMR group, are concerned. While NMR is a leading technology for “teasing out components of a chemical mixture” and determining the structure of proteins at atomic resolution, it nonetheless struggles with signal strength and signal-to-noise ratio. To these ends, Bajaj and Kennedy, along with Scott Seltzer, Hattie Ring at Berkeley Lab and colleagues at Boulder’s National Institute of Standards and Technology have developed a technology by which hyperpolarized xenon gas (129Xe)

The post Producing Hyperpolarized Xenon Gas on a Microfluidic Chip has been published on Technology Org.

 
#materials 
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Locked in a lovers' dance

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Locked in a lovers' dance
...with embrace and union in a few hundred million years (it's already happened but the photons reaching us haven't yet announced it!)

  #outerspace  

Catherine Laplace-Builhe originally shared:

Submillimeter Galaxies in the #Chandra Deep Field-North (SMG 123616.1+621513): Era of Galaxy and Black Hole Growth Spurt Discovered 
http://chandra.harvard.edu/photo/2005/smg/ 

 » see original post https://plus.google.com/116000959328274308893/posts/41a8L7qLgzq
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A quantum (computing) gun revealed by quantum smoke

Science Focus

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I have to admit it: D-Wave is starting to produce some impressive results. For the uninitiated, D-Wave came to our attention by loudly and repeatedly claiming that it had built a quantum computer. Many of us were skeptical. Over time, though, D-Wave has answered its critics in the best way possible: by providing evidence. Now, researchers who actually got inside the black box are reporting some key results that come very close to removing any lingering doubts.

The quantum difference

When we perform computations in an ordinary computer, we have to manipulate each bit individually. Sure, the computer might make this faster through some sort of parallelization, but there's still a set of transistors flipping individual bits for each operation. A quantum computer is different. First, the information is stored in a quantum state (called a qubit), which means that it holds multiple values simultaneously (called superposition states). The value of a qubit is only determined when the result of a computation is read out. An eight-qubit quantum register can therefore hold values from 0-255 simultaneously, but the probability of obtaining a particular value is modified by the computational operations that are performed prior to reading the register out.

That is not the real power of quantum computation, however. The second bit of magic that a quantum system has is called coherence. When a quantum state is in a superposition state, the probability of obtaining a one or a zero changes with time naturally, like a pendulum swinging back and forth. At a particular time, the chance of measuring a one is unity, while some time later, the chance of measuring a zero is unity. In between, the probability of obtaining a one smoothly varies from unity to zero. When two qubits are coherent, this changing probability happens in concert for the two qubits.

Read 12 remaining paragraphs | Comments

 
#science 
 » see original post http://feeds.arstechnica.com/~r/arstechnica/science/~3/9YPAaXjOn7A/
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Shaping the future through sci-fi at ASU

Science Focus

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The next time you call your boss from a traffic jam to say you’ll be late for work, offer a silent “thank you” to Captain Kirk. The fictional hero of television’s “Star Trek,” Kirk often talked to his crew through a handheld communicator. Martin Cooper, the man who invented the cell phone, says the show was the inspiration for his idea. From the geostationary satellite to the Taser, the submarine to virtual reality, many technologies we use today were originally conceived of by writers and artists. These visionaries imagined future inventions with remarkable accuracy, even if they didn’t know how to actually make them. Science fiction books, movies, TV shows and art also allow us to explore the social implications of these advances. Do clones have rights? What about sentient robots? How might advances in genetics and behavioral prediction affect privacy? The Center for Science and the Imagination at Arizona State University brings together writers, artists, scientists and other creative thinkers to reignite humanity’s grand ambitions for innovation and discovery. They link human narratives to scientific questions and explore the full social implications of cutting-edge research. Ed Finn, director of the center, says that science fiction continues to influence science today, leading

The post Shaping the future through sci-fi at ASU has been published on Technology Org.

 
#physics 
 » see original post http://feedproxy.google.com/~r/TechnologyOrgPhysicsNews/~3/xR4ivHBCcrE/
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VIDEO: US drought 'worst for decades'

Science Focus

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Parts of the United States are experiencing the worst drought for decades with farmers warning that harvests are being badly hit. 
#science 
 » see original post http://www.bbc.co.uk/news/science-environment-27995690#sa-ns_mchannel=rss&ns_source=PublicRSS20-sa
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A Starburst Galaxy - Messier 82 (Cigar Galaxy) Stickers

Here's a great sheet of stickers featuring a beautiful image from deep space


tagged with: galaxies and stars, messier 82, cigar galaxy, active galaxies, peel off, starburst galaxy, hubble, nasa esa, sbglxymet

Galaxies, Stars and Nebulae series This mosaic image of the magnificent starburst galaxy, Messier 82 (aka Cigar Galaxy) is a really sharp wide-angle view of M82. It is a galaxy remarkable for its webs of shredded clouds and flame-like plumes of glowing hydrogen blasting out from its central regions where young stars are being born 10 times faster than they are inside in our Milky Way Galaxy.

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more items in the Galaxies, Stars and Nebulae series

image code: sbglxymet

Image credit: NASA, ESA and the Hubble Heritage Team STScI/AURA). Acknowledgment: J. Gallagher (University of Wisconsin), M. Mountain (STScI) and P. Puxley (NSF).

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Manhattanhenge: A New York City Sunset

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Orion Nebula Green Upright Bass Wall Graphic

Here's a great wall decal featuring a beautiful image from deep space


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Space image of the Orion Nebula on the shape of an upright bass.

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Hubble Image of NGC 3324 Cases For iPad

Here's a great iPad case from Zazzle featuring a Hubble-related design. Maybe you'd like to see your name on it? Click to personalize and see what it's like!


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Designing ion ‘highway systems’ for batteries

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Since the early 1970s, lithium has been the most popular element for batteries: it’s the lightest of all metals and has the greatest electrochemical potential. But a lithium-based battery has a major disadvantage: it’s highly flammable, and when it overheats, it can burst into flames. For years, scientists have searched for safer battery materials that still have the same advantages as lithium. While plastics (or polymers) seemed like an obvious choice, researchers never fully understood how the material would change when an ion charge was introduced.  Now a McCormick team has married two traditional theories in materials science that can explain how the charge dictates the structure of the material. This opens the door for many applications, including a new class of batteries. Monica Olvera de la Cruz   “There is a huge effort to go beyond lithium in a flammable solvent,” says Monica Olvera de la Cruz, Lawyer Taylor Professor of Materials Science and Engineering and senior author of the paper. “People have been looking at alternatives that are not explosive, like plastics. But they didn’t know how to compute what happens when you put in a charge.”   The team looked at plastics known as block copolymers (BCPs) that

The post Designing ion ‘highway systems’ for batteries has been published on Technology Org.

 
#materials 
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"You Are Here" Milky Way Galaxy Poster

Here's a great poster featuring a beautiful image from deep space


tagged with: milky way, galaxy, astronomy, science, classroom poster, nasa, outer space, space, fun science

Poster shows gorgeous rendering of Milky Way Galaxy using latest telescope data (public domain image by NASA/Caltech), plus a "You Are Here" arrow pointing to the Earth's local neighborhood.

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A Starburst Galaxy - Messier 82 (Cigar Galaxy) Sticker

Here's a great sheet of stickers featuring a beautiful image from deep space


tagged with: envelope sealers, galaxies and stars, hubble, messier 82, cigar galaxy, active galaxies, starburst galaxy, nasa esa, sbglxymet

Galaxies, Stars and Nebulae series This mosaic image of the magnificent starburst galaxy, Messier 82 (aka Cigar Galaxy) is a really sharp wide-angle view of M82. It is a galaxy remarkable for its webs of shredded clouds and flame-like plumes of glowing hydrogen blasting out from its central regions where young stars are being born 10 times faster than they are inside in our Milky Way Galaxy.

more items with this image
more items in the Galaxies, Stars and Nebulae series

image code: sbglxymet

Image credit: NASA, ESA and the Hubble Heritage Team STScI/AURA). Acknowledgment: J. Gallagher (University of Wisconsin), M. Mountain (STScI) and P. Puxley (NSF).

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Colorful Pastel Pink Nebula Purple Galaxy Stars Wall Graphic

Here's a great wall decal featuring a beautiful image from deep space


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A bright, colorful pink, blue and purple galaxy and space nebulae photograph featuring bright glitter stars with pastel and elegant pink and purple, deep blue colors and cloudburst with white. Get this hipster stylish and trendy outer space design. perfect gift for the girly girl, the geek and the astronomy enthusiast. Girly Road is a collaboration between Girly Trend and Railton Road

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Hubble Maps the Cosmic Web iPad Folio Case

Here's a great iPad case from Zazzle featuring a Hubble-related design. Maybe you'd like to see your name on it? Click to personalize and see what it's like!


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The Zazzle Promise: We promise 100% satisfaction. If you don't absolutely love it, we'll take it back!