Sunday, June 30, 2013

Redesigned Best Buy App Now Available on Windows Phone 8

A new flavor of the Best Buy application is now available for download for the owners of Windows Phone 8 devices, namely version 1.0.0.10.

The new app release comes with a redesigned user interface, which makes it much more user-friendly when compared to previous releases, as well as with voice integration, so as to deliver a better experience than before.

The new flavor of the application also resolves the connection issues that users were affected by in previous releases, it seems.

?The Best Buy app provides a fresh new way to shop for the latest and greatest technology. Browse the full Best Buy product catalog and read ratings and reviews,? the app?s description reads.

Users will also be provided with the possibility to search for products or nearby stores by using their voice.

Best Buy 1.0.0.10 for Windows Phone 8 can be found on this page.

Source: http://news.softpedia.com/news/Redesigned-Best-Buy-App-Now-Available-on-Windows-Phone-8-364399.shtml

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Link between fear and sound perception discovered

June 30, 2013 ? Anyone who's ever heard a Beethoven sonata or a Beatles song knows how powerfully sound can affect our emotions. But it can work the other way as well -- our emotions can actually affect how we hear and process sound. When certain types of sounds become associated in our brains with strong emotions, hearing similar sounds can evoke those same feelings, even far removed from their original context. It's a phenomenon commonly seen in combat veterans suffering from post-traumatic stress disorder (PTSD), in whom harrowing memories of the battlefield can be triggered by something as common as the sound of thunder. But the brain mechanisms responsible for creating those troubling associations remain unknown. Now, a pair of researchers from the Perelman School of Medicine at the University of Pennsylvania has discovered how fear can actually increase or decrease the ability to discriminate among sounds depending on context, providing new insight into the distorted perceptions of victims of PTSD.

Their study is published in Nature Neuroscience.

"Emotions are closely linked to perception and very often our emotional response really helps us deal with reality," says senior study author Maria N. Geffen, PhD, assistant professor of Otorhinolaryngology: Head and Neck Surgery and Neuroscience at Penn. "For example, a fear response helps you escape potentially dangerous situations and react quickly. But there are also situations where things can go wrong in the way the fear response develops. That's what happens in anxiety and also in PTSD -- the emotional response to the events is generalized to the point where the fear response starts getting developed to a very broad range of stimuli."

Geffen and the first author of the study, Mark Aizenberg, PhD, a postdoctoral researcher in her laboratory, used emotional conditioning in mice to investigate how hearing acuity (the ability to distinguish between tones of different frequencies) can change following a traumatic event, known as emotional learning. In these experiments, which are based on classical (Pavlovian) conditioning, animals learn to distinguish between potentially dangerous and safe sounds -- called "emotional discrimination learning." This type of conditioning tends to result in relatively poor learning, but Aizenberg and Geffen designed a series of learning tasks intended to create progressively greater emotional discrimination in the mice, varying the difficulty of the task. What really interested them was how different levels of emotional discrimination would affect hearing acuity -- in other words, how emotional responses affect perception and discrimination of sounds. This study established the link between emotions and perception of the world -- something that has not been understood before.

The researchers found that, as expected, fine emotional learning tasks produced greater learning specificity than tests in which the tones were farther apart in frequency. As Geffen explains, "The animals presented with sounds that were very far apart generalize the fear that they developed to the danger tone over a whole range of frequencies, whereas the animals presented with the two sounds that were very similar exhibited specialization of their emotional response. Following the fine conditioning task, they figured out that it's a very narrow range of pitches that are potentially dangerous."

When pitch discrimination abilities were measured in the animals, the mice with more specific responses displayed much finer auditory acuity than the mice who were frightened by a broader range of frequencies. "There was a relationship between how much their emotional response generalized and how well they could tell different tones apart," says Geffen. "In the animals that specialized their emotional response, pitch discrimination actually became sharper. They could discriminate two tones that they previously could not tell apart."

Another interesting finding of this study is that the effects of emotional learning on hearing perception were mediated by a specific brain region, the auditory cortex. The auditory cortex has been known as an important area responsible for auditory plasticity. Surprisingly, Aizenberg and Geffen found that the auditory cortex did not play a role in emotional learning. Likely, the specificity of emotional learning is controlled by the amygdala and sub-cortical auditory areas. "We know the auditory cortex is involved, we know that the emotional response is important so the amygdala is involved, but how do the amygdala and cortex interact together?" says Geffen. "Our hypothesis is that the amygdala and cortex are modifying subcortical auditory processing areas. The sensory cortex is responsible for the changes in frequency discrimination, but it's not necessary for developing specialized or generalized emotional responses. So it's kind of a puzzle."

Solving that puzzle promises new insight into the causes and possible treatment of PTSD, and the question of why some individuals develop it and others subjected to the same events do not. "We think there's a strong link between mechanisms that control emotional learning, including fear generalization, and the brain mechanisms responsible for PTSD, where generalization of fear is abnormal," Geffen notes. Future research will focus on defining and studying that link.

Source: http://feeds.sciencedaily.com/~r/sciencedaily/mind_brain/child_development/~3/Wq0G_0EHIi4/130630145002.htm

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Abortion fight in Texas

Yes indeed, Texas Gov. Rick Perry has cut women to the quick with his insulting and condescending comments regarding Democratic State Senator Wendy Davis, who blocked the highly restrictive abortion bill with her filibuster of more than 10 hours. But then again, what can you expect from a man, who once suggested that Turkey?s leaders are Islamic terrorists?

In any case, women are intelligent enough to make their own decision concerning the necessity to terminate a pregnancy, carry a baby to full term and or raise a child as a single mother. Until Gov. Perry gets his medical degree, I suggest he and fellow Republicans remove their long arm of government and stop interfering with a woman?s right to choose.

? JoAnn Lee Frank, Clearwater, Fla.?

Source: http://feedproxy.google.com/~r/chicagotribune/voiceofthepeople/~3/RI_kjJLLzZE/chi-20130628-frank_briefs,0,6143375.story

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NKorea likely to get cold shoulder at Asia forum

BANDAR SERI BEGAWAN, Brunei (AP) ? A regional security summit in this tiny Southeast Asian sultanate is the sort of venue where North Korea has often managed to open up sideline discussions with Seoul and Washington. This time, while there will be plenty of talk about Pyongyang, there is little chance of substantive talk with it.

North Korea has sought negotiations with the U.S. and South Korea but has ignored their demands that it first honor prior commitments to move toward nuclear disarmament. At high-level diplomatic talks beginning this weekend, it can expect the cold shoulder from those countries and others frustrated by Pyongyang's insistence on developing nuclear weapons.

After a December long-range rocket launch, a February nuclear test and weeks of threats to defend itself from aggression with nuclear strikes against South Korea and the United States, North Korea earlier this month made a surprise offer for separate talks with its rivals.

Government delegates from the two Koreas met and agreed to hold senior-level talks on non-nuclear issues, but the plan collapsed over a protocol dispute. The United States responded coolly to Pyongyang's appeal for direct negotiations, which some analysts view as a familiar effort to win aid in return for ratcheting down tensions.

"While it is certainly preferable for North Korea to pursue diplomatic rather than missile or nuclear tests, all of North Korea's neighbors by now are well aware of North Korea's history of diplomatic initiatives as just another tool through which North Korea has sought to consolidate gains following periods in which North Korean brinkmanship has driven political tensions to high levels," Scott Snyder, a Korea specialist at the Council on Foreign Relations think tank, wrote in a blog post.

North Korea quit disarmament-for-aid talks with five other nations ? South Korea, the U.S., Japan, Russia and China ? in 2009 to protest international condemnation over a long-range rocket launch.

He added that agreeing to hold talks with the North "and come back to the table as though nothing has changed since the last six-party talks were held in 2008 would imply acceptance" of Pyongyang's rocket launches and nuclear tests.

Whether or not Washington and its allies ignore Pyongyang's diplomats, North Korea's atomic aspirations are on the agenda in talks surrounding the 27-country Association of Southeast Asian Nations Regional Forum, which takes place Tuesday in the Bruneian capital of Bandar Seri Begawan.

A draft of the forum chairman's statement provided to The Associated Press said that the meetings would reaffirm the importance of denuclearizing the Korean Peninsula, and that most participants urged North Korea "to abide by its obligations" under U.N. Security Council resolutions and commitments made in a joint statement following six-party talks in 2005.

U.S. Secretary of State John Kerry and his counterparts from South Korea, China and Japan will attend the forum and could hold private meetings that touch on Pyongyang.

On Saturday, North Korea's longtime foreign minister, Pak Ui Chun, departed Pyongyang for Brunei. He was seen off at the airport by Liu Hongcai, China's ambassador to North Korea. Beijing is Pyongyang's biggest ally but has pushed its neighbor on denuclearization.

Because the ASEAN forum gathers diplomats from all six countries involved in the long-stalled disarmament negotiations it has previously provided a chance to use informal, sideline talks to break stalemates over the nuclear issue.

In 2011, top nuclear envoys from the two Koreas met on the sidelines of the forum in Bali, Indonesia, and agreed to work toward a resumption of the six-nation talks, though the negotiations remain stalled. The Koreas' foreign ministers held sideline talks in 2000, 2004, 2005 and 2007, and top diplomats from Pyongyang and Washington also met privately in 2004 and 2008.

North Korea will likely seek similar talks in Brunei, but South Korean Foreign Ministry spokesman Cho Tai-young told reporters Tuesday that officials from Seoul aren't considering meeting the North Korean foreign minister on the sidelines. In Washington, State Department spokesman Patrick Ventrell said Monday that he knew of no discussions planned between Kerry and Pak in Brunei, and that such talks would be "fairly unusual."

Analysts said North Korea appeared to be repeating its pattern of following aggressive rhetoric with diplomatic efforts to get outside aid and concessions.

Chang Yong Seok, an analyst at the Institute for Peace and Unification Studies at Seoul National University, said Pyongyang must do something to show it's refraining from continuing nuclear activities, such as announcing some disarmament steps, if it wants to have talks.

Despite its recent bid for diplomacy, North Korea has raised renewed worries about a nuclear program that outsiders estimate to include a handful of crude nuclear bombs. Pyongyang followed up its February nuclear test, its third since 2006, with an announcement that it planned to restore all of its atomic bomb fuel producing facilities. The latest test drew widespread international condemnation and tightened U.N. sanctions, which subsequently led the North to issue a torrent of warlike threats and sharply raise tensions on the divided peninsula.

Recent satellite photos show signs of new tunnel work at North Korea's underground nuclear test site, the U.S.-Korea Institute at Johns Hopkins School of Advanced International Studies said in an analysis Tuesday. The analysis said it doesn't appear to indicate another atomic blast is imminent but suggests the country has continued to work on its nuclear weapons program even as tensions eased.

Other issues expected to draw keen media attention in Brunei include South China Sea territorial disputes and relations between the U.S. and China, the world's two biggest economies.

China has territorial disputes with the Philippines, Vietnam, Taiwan, Brunei and Malaysia over the South China Sea and its potentially oil- and gas-rich islands. Several claimants want group discussions in order to create a legally binding "code of conduct" to prevent clashes in the sea, but Beijing has not clearly stated when it will sit down with the 10-nation ASEAN bloc to discuss such a nonaggression pact.

China prefers one-on-one negotiations with each rival claimant to resolve the territorial dispute, something that would give it an advantage because of its size and clout.

Southeast Asian countries believe that "having bilateral negotiations with a strong guy would be a losing game," said Bae Geung-chan, a professor at the state-run Korea National Diplomatic Academy in Seoul.

The regional forum chairman's statement said ministers welcome efforts to work toward a code of conduct, and commended ASEAN nations and China for their work to maintain peace and stability.

Analysts say China and the U.S. probably won't have sensitive talks in Brunei that could change their relations. Their leaders recently held an unusually lengthy informal summit in California, during which both countries expressed optimism that the closer personal ties forged between the leaders could stem the mistrust between the world powers.

During the summit, President Barack Obama and his Chinese counterpart, Xi Jinping, were in broad agreement over the need for North Korea to abandon its nuclear weapons, according to U.S. officials.

___

Associated Press writers Jim Gomez in Manila, Philippines, and Kim Kwang Hyon in Pyongyang, North Korea, contributed to this report.

Source: http://news.yahoo.com/nkorea-likely-cold-shoulder-asia-forum-095914963.html

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'Dexter' review: take out part of Your Brain and Enjoy

By Tim Molloy

NEW YORK (TheWrap.com) - The premiere of the final season of "Dexter" finds our favorite serial killer looking for a psychopath who surgically removes parts of his victim's brains.

For the last two seasons, "Dexter" has invited us to remove some of our minds, too. There's plenty of room for shows that don't ask us to think, but "Dexter" wasn't always one of them. Its fourth season was pulp at its best, a Swiss timepiece of a construction that put Dexter up against a brilliantly worthy enemy (John Lithgow) and more than delivered on its sense of menace.

Season 5, which paired Dexter with Julia Stiles as an assault victim seeking vengeance, wasn't as good, but what would have been? The clock didn't really fall apart until the sixth and seventh seasons. The show seemed to lose its way as ridiculous murders and silly subplots bought time until the inevitable end. It took Dexter's sister Deborah (Jennifer Carpenter, pictured) much too long to catch him in the act, and when she did, her response seemed totally out of sync with the Deb we'd come to know and like.

So killer ratings aside, plenty of critics wish Dexter had hung up his knives sooner. Just imagine if Deb had arrested him at the end of Season 5, and then we'd been treated to a season of Dexter trying to do what he does while surrounded by killers on death row. Am I resorting to fan fiction? Yes. But I'm not the first "Dexter" fan to wish it had done something different than it did.

If you've made it this far into the series, nothing I say will stop you from sticking around for this eighth season, premiering Sunday on Showtime, to see how it ends. And you should, even if "Dexter" has turned into one of those shows where some of the fun is heckling. This time around, you'll find things to gripe about, but also some good news.

"Dexter" still takes a lot of the same shortcuts it has for the past two seasons. It's still dragged down by hokey exposition, much of it provided by Dexter (Michael C. Hall) in his monotone and monotonous voiceovers. It still goes for cheap thrills, like the pandering nudity in the premiere. An explanation for Angel taking a career 180 is forced.

But the show also promises to bring Dexter's story full circle. A well-cast Charlotte Rampling joins the show as a serial killer expert whose droll performance all but screams: I know a secret.

By the second episode, written by series vet Manny Coto and directed by Hall, the show even finds its deadpan humor again. Dexter's voiceover is finally put to good use as he examines a fellow killer's house and tries to guess where he keeps his implements. Quinn and Angel have a funny moment involving a quilt. And Rampling's plotline starts to crackle.

After a full season of Deb seeming out of sorts, she finally has a cool arc. She's now working for private detective agency, and deeply resents Dexter for her decision to kill LaGuerta. She's in the midst of one of those "Dexter" spirals, like Quinn's in Season 6, that we suspect will be conveniently short. And she has an assassin pursuing her. Fun.

The second episode also introduces some intriguing ideas about the role of sociopaths in our evolution. I'll be really impressed if "Dexter" finds somewhere to go with those ideas, since lately it's been content to throw them at the wall like so much splatter.

It will take Dexter at his best to take that splatter and find his way to a conclusion. Time is running out, and we need "Dexter" back on its old clock.

The premiere of the final season of "Dexter" airs Sunday at 9/8 c on Showtime.

Source: http://news.yahoo.com/dexter-review-part-brain-enjoy-004227398.html

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Saturday, June 29, 2013

Gay marriage in California: State prepares for more same-sex weddings

California granted marriage licenses to same-sex couples for about five months in 2008, before voters passed Prop. 8 to ban them. Now that the Supreme Court has struck down Prop. 8, Californians are preparing for an influx of lesbian and gay weddings.

By Lisa Leff & Paul Elias,?Associated Press / June 27, 2013

Rainbow flags fly in front of San Francisco City Hall on Wednesday, June 26, 2013, shortly after the US Supreme Court decision that cleared the way for same-sex marriage in California.

Noah Berger/AP

Enlarge

The Palm Springs Tourism Bureau was ready when the U.S. Supreme Court cleared the way for same-sex marriages to resume in California. Within an hour of the high court handing down its decision Wednesday, the bureau launched a wedding web site featuring photographs of same-sex couples and spotlighting the desert city's gay and lesbian resorts.

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"We just saw this as a great opportunity. LGBT people planning to get married need a location, and Palm Springs is a favorite destination," Hillary Angel, a bureau spokeswoman, said. "You can get married at Frank Sinatra's estate."

The nation's most populous state was a trailblazer the last time it opened the door to gay marriages five years ago. Back then, California was only the second state ?after Massachusetts? to do so, a position it lost when voters slammed the door shut after only a few months by amending the state constitution to outlaw same-sex unions.

Now, as state officials prepare once again to issue marriage licenses on an equal opportunity basis, jewelers, hotels and event planners are playing catch-up up with a dozen other states and the District of Columbia. Couples, meanwhile, are making wedding plans against a political and social landscape that looks much different from the one that existed in 2008, when an estimated 18,000 couples hurried to tie the knot before the ban's passage and spent months not knowing if their unions would be invalidated.

"Today is the first day of an entirely new reality for same-sex couples and for LGBT people in this state," said National Center for Lesbian Rights Executive Director Kate Kendell, who got married during the brief window that year. "No one else in the history of this nation faced the sort of uncertainty, the stutter step of forward progress and backward sliding to the extent the LGBT community has, and now, at least in California, we are done."

Opponents of same-sex marriage have said they are exploring various legal options for making one last-ditch effort to stop it. The Supreme Court's 5-4 opinion legalized gay marriage in California on a technicality, holding that the sponsors of the voter-backed amendment, known as Proposition 8, lacked authority to represent the state after Gov. Jerry Brown and Attorney General Kamala Harris refused to defend the measure in court.

Lawyers for the ban's backers still have 24 days to ask the Supreme Court to rehear their case. Most legal analysts think Proposition 8 supporters have slim-to-zero chance of preventing same-sex marriages from resuming, which would happen once the Supreme Court's ruling becomes official and frees the 9th U.S. Circuit Court of Appeals to remove the hold it placed on such weddings while the ban's constitutionality was being debated.

Without a firm date, the Los Angeles County clerk's office told same-sex couples who called for information Thursday that it could not process their marriage license applications or take their appointments for marriage ceremonies, office spokeswoman Regina Ip said.

"We have received calls, but the response has been that couples can only make an appointment for a ceremony if they have a license, but we won't be issuing licenses to same-sex couples until the (appeals) court lifts the stay," Ip said.

The Williams Institute, a think tank based at UCLA that estimated the number of couples who wed in 2008, is predicting that 37,000 of the 100,000 same-sex couples now living together in California will get married over the next three years, creating $492 million in new business from wedding spending and tourism dollars from out-of-state guests and another $46 million in tax and fee revenue for the state.

Brad Sears, the institute's executive director, said the assumptions on which he derived those estimates, which came from the early experience of Massachusetts, may be conservative. Not only is California known as "a destination wedding state in its own right," but gay Californians making wedding plans now have the luxury of time and a sense of security that did not exist five years ago, which could persuade couples to spend more on their celebrations, Sears said.

"There is no dark cloud hanging over their marriages" he said. "They have stability of knowing marriage is here and marriage is here to stay in a way it wasn't in 2008."

Source: http://rss.csmonitor.com/~r/feeds/csm/~3/NzWNO-E1JZk/Gay-marriage-in-California-State-prepares-for-more-same-sex-weddings

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Researchers See Through Walls With 'Wi-Vi'

Want X?ray vision like the man of steel? A technology that lets you see behind walls could soon be built in to your cell phone.

MIT professor Dina Katabi and graduate student Fadel Adib have announced Wi?Vi, a demonstration of a technology that uses Wi?Fi to allow a viewer to "see" a person moving behind a wall. (Wi?Vi stands for "Wi?Fi" and "vision.")

Previous work demonstrated that the subtle reflections of wireless inter signals bouncing off a human could be used to track that person's movements, but those previous experiments either required that a wireless router was already in the room of the person being tracked, or "a whole truck just to carry the radio," said Katabi.

The new device uses the same wireless antenna as is found in a cell phone or laptop and could in theory one day be embedded in a phone. [See also "WiSee Detects Your Gestures Using WiFi."]

The trick is canceling out all interfering signals ? Wi-Fi doesn't just bounce off humans, but also walls, floors, and furniture. And those signals are 10,000 to 100,000 times more powerful than the reflections off a human body.

Katabi's wi?vi sends out two wireless signals, one of which is the inverse of the other. In what Katabi calls "interference nulling," the two signals cancel each other out unless they hit a moving target ? such as a human.

"To silence the noise, we change the structure of the Wi-Fi signal so all the undesired reflections cancel," she said.

The device is meant to be portable so, for example, a person worried that someone was hiding in the bushes could do a quick scan for her personal safety.

Wi?Vi could also serve as a high tech baby monitor or help Superman ? or just cops ? catch baddies.

This story was provided by TechNewsDaily, a sister site to LiveScience.

Copyright 2013 LiveScience, a TechMediaNetwork company. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.

Source: http://news.yahoo.com/researchers-see-walls-wi-vi-194650390.html

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The Jones family jewelry box includes a Super Bowl ring and UFC championship belt (Photo)

Plenty of families have jewelry that is special to them. I have a pearl and sapphire ring that belonged to my grandmother that means the world to me. However, when you're a member of the Jones family, that jewelry is just a bit different.

UFC light heavyweight champion Jon Jones has a gold-encrusted belt for being the champ. His brother Arthur is a member of the Super Bowl-winning Baltimore Ravens, and he received his ring earlier this month. Jon displayed the two pieces together on his Instagram account. Jon's younger brother, Chandler, is a member of the New England Patriots, so there's a good chance this jewelry collection could grow soon.

Source: http://sports.yahoo.com/blogs/mma-cagewriter/jones-family-jewelry-box-includes-super-bowl-ring-205305957.html

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Deal of the Day: Birmingham Police Credit Union Savings Interest Rates at 1.00% APY

Birmingham Police Credit Union

No savings plan is complete without the inclusion of interest. It?s like a reward for having the discipline to deposit money on a regular basis ? an aid for building that nest egg or retirement fund. With higher?savings interest rates, saving money becomes easy; with the Birmingham Police Credit Union, it becomes easier with a 1.00% annual percentage rate attached to a standard share savings account.

Birmingham Police Credit Union Savings Account Terms and Conditions

Birmingham Police Credit Union?s standard ?passbook? savings account comes with 1.00% interest, attainable when credit union members open an account with a minimum $10 deposit. A minimum balance of $100 is needed to begin accruing the posted APY; balances above $10,000 and $25,000 will receive even higher savings interest rates. All deposit accounts with the credit union, including this one, are also federally insured up to $250,000 by the National Credit Union Administration.

About Birmingham Police Credit Union

Members of the Birmingham Police Credit Union are members for life. Membership with the Birmingham, AL nonprofit is open to personnel of the Birmingham Police Department, including:
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Save more with savings interest rates.

Other Terms and Conditions may apply. Additionally, interest rates are based on the institution?s online published rates and may have changed since this offer was posted. Please contact the financial institution for the most recent rate updates and to review the terms of the offer.

Source: http://www.gobankingrates.com/savings-account/birmingham-police-credit-union-1-00/

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Could Quantum Brain Effects Explain Consciousness?

NEW YORK ? The idea that consciousness arises from quantum mechanical phenomena in the brain is intriguing, yet lacks evidence, scientists say.

Physicist Roger Penrose, of the University of Oxford, and anesthesiologist Stuart Hameroff, of the University of Arizona, propose that the brain acts as a quantum computer ? a computational machine that makes use of quantum mechanical phenomena (like the ability of particles to be in two places at once) to perform complex calculations. In the brain, fibers inside neurons could form the basic units of quantum computation, Penrose and Hameroff explained at the Global Future 2045 International Congress, a futuristic conference held here June 15-16.

The idea is appealing, because neuroscience, so far, has no satisfactory explanation for consciousness ? the state of being self-aware and having sensory experiences and thoughts. But many scientists are skeptical, citing a lack of experimental evidence for the idea. [Consciousness to Sleep: Top 10 Mysteries of the Mind]

The Orch OR model

Penrose and Hameroff developed their ideas independently, but collaborated in the early 1990s to develop what they call the Orchestrated Objective Reduction (Orch OR) model.

Penrose's work rests on an interpretation of the mathematician Kurt Godel's incompleteness theorem, which states that certain results cannot be proven by a computer algorithm. Penrose argues that human mathematicians are capable of proving so-called "Godel-unprovable" results, and therefore human brains cannot be described as typical computers. Instead, he says, to achieve these higher abilities, brain processes must rely on quantum mechanics.

But Penrose's theory didn't explain how this quantum computing occurred inside actual brains, just that the phenomenon would be needed to solve certain mathematical equations. Hameroff read Penrose's work and suggested small fibrous structures that give cells their structural support ? known as microtubules ? might be capable of carrying out quantum computations.

Microtubules are made up of units of the protein tubulin, which contains regions where electrons are swirling around very close to each other. Hameroff proposed that these electrons could become "quantum entangled," a state in which two particles retain a connection, and an action performed on one affects the other, even when the two are separated by a distance.

In the Orch OR model, the mathematical probabilities that describe the quantum states of these entangled electrons in microtubules become unstable in space-time. These mathematical probabilities are called wave functions, and in this scenario they collapse, moving from a state of probability to a specific actuality. In this state, the microtubules in one neuron could be linked to those in other neurons via electrical connections known as gap junctions. These junctions would allow the electrons to "tunnel" to other regions of the brain, resulting in waves of neural activity that are perceived as conscious experience.

"Penrose had a mechanism for consciousness, and I had a structure," Hameroff told LiveScience.

Problems with the model

Interesting as it sounds, the Orch OR model has not been tested experimentally, and many scientists reject it.

Quantum computers ? computers that take advantage of quantum mechanical effects to achieve extremely speedy calculations ? have been theorized, but only one (built by the company D-Wave) is commercially available, and whether it's a true quantum computer is debated. Such computers would be extremely sensitive to perturbations in a system, which scientists refer to as "noise." In order to minimize noise, it's important to isolate the system and keep it very cold (because heat causes particles to speed up and generate noise).

Building quantum computers is challenging even under carefully controlled conditions. "This paints a desolate picture for quantum computation inside the wet and warm brain,? Christof Koch and Klaus Hepp, of the University of Zurich, Switzerland, wrote in an essay published in 2006 in the journal Nature.

Another problem with the model has to do with the timescales involved in the quantum computation. MIT physicist Max Tegmark has done calculations of quantum effects in the brain, finding that quantum states in the brain last far too short a time to lead to meaningful brain processing. Tegmark called the Orch OR model vague, saying the only numbers he?s seen for more concrete models are way off.

"Many people seem to feel that consciousness is a mystery and quantum mechanics is a mystery, so they must be related," Tegmark told LiveScience.

The Orch OR model draws criticism from neuroscientists as well. The model holds that quantum fluctuations inside microtubules produce consciousness. But microtubules are also found in plant cells, said theoretical neuroscientist Bernard Baars, CEO of the nonprofit Society for Mind-Brain Sciences in Falls Church, VA., who added, "plants, to the best of our knowledge, are not conscious."

These criticisms do not rule out quantum consciousness in principle, but without experimental evidence, many scientists remain unconvinced.

"If somebody comes up with just one single experiment," to demonstrate quantum consciousness, Baars said, "I will drop all my skepticism."

Editor's Note: This article was updated on June 27, 2013 to amend the statement that "no quantum computers... have been realized." The company D-Wave claims to have created one, though some have questioned whether it really performs as a quantum computer.

Follow Tanya Lewis on Twitter?and Google+.?Follow us @livescience, Facebook?& Google+. Original article on?LiveScience.com.

Copyright 2013 LiveScience, a TechMediaNetwork company. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.

Source: http://news.yahoo.com/could-quantum-brain-effects-explain-consciousness-120740823.html

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Improving measurements by reducing quantum noise

June 27, 2013 ? Researchers from Vienna University of Technology have built a new interferometer for trapped, ultracold atomic gases. By strongly suppressing the quantum noise, which ultimately limits the performance of interferometers, they were able to curb the effect of atomic interactions, and increase the interrogation time of their interferometer. This should yield more precise measurements.

If you want to measure something very precisely, such as slight variations of a length, then you are very likely to use light waves. However, many effects, such as variations of gravity, or surface forces, can only be measured using particles that have a mass. Since, according to the rules of quantum mechanics, massive particles also behave like waves, interferometers can be built in which single atoms or even entire atomic clouds are used instead of light. A team from the Vienna University of Technology has now been able to develop a Mach-Zehnder interferometer for Bose-Einstein condensates containing about a thousand atoms trapped by an atom chip. Using the interactions between the atoms, they were able to strongly reduce the quantum noise, which sets the best achievable sensitivity. This resulted in multiplying the measurement time by three and significantly improving the precision of the measurement.

Mach-Zehnder interferometer for ultracold atomic clouds

The team of Professor J?rg Schmiedmayer (Vienna Center for Quantum Science and Technology -- VCQ, Atominstitut, TU-Wien) has taken up the idea of the Mach-Zehnder interferometer and adapted it for trapped atoms on an atom chip. The Mach-Zehnder interferometer is an interferometric setup in which a wave is split into two halves on a first beam splitter and then recombined. From the way the two beams interfere, the magnitude of the interaction acting on the particles can be read out very accurately. It's according to this principle that the first matter-wave interferometry experiments with separated beams were performed in 1974 at the reactor of the Atominstitut, using neutrons.

Instead of single particles, the team at the TU Vienna has now been using entire atomic clouds. At ultralow temperatures, close to absolute zero, atoms lose their individuality and "clump" into a single quantum object -- the Bose-Einstein condensate. "In such a condensate, all atoms form a single quantum wave, exactly as photons in a laser behave quantum mechanically all together," J?rg Schmiedmayer explains.

In usual atom interferometers, the atoms move freely, and the measurement time is limited by the time of flight. In the new interferometer at the TU Vienna, the Bose-Einstein condensate is held in a trap during the whole sequence, which in principle would set no limit to the interrogation time.

Shot noise responsible for imprecision

"Atom interferometers are widely used for high precision measurements. But besides the technical hurdles that have to be overcome, the precision of an interferometer also has fundamental limits." explains Tarik Berrada, first author of the paper recently published in the scientific journal "Nature Communications."

Usually, the precision of an interferometer is limited by the so-called "shot noise." It is due to the fact that a quantum beam is not a continuous stream but is made out of discrete particles. When rain drops are falling on a tin roof, one hears a "dripping" noise, while a continuous flow of water would cause a uniform roar.

When an atomic cloud is split in two parts, shot noise causes an uncertainty in the atom number on each side: while the atoms are in a quantum superposition of atoms being left and right at the same time, the atom number difference between the two parts exhibits quantum fluctuations. "Through atomic interactions, the uncertainty on the atom number is converted into an uncertainty on the quantum phase," Tarik Berrada explains. The noise on the quantum phase -- the beat at which the quantum superposition ticks -- grows, limiting in turn the precision of an interferometric measurement.

However, in the experiment at the TU Vienna, the condensates are prepared in a particular quantum state: "Using a so called squeezed state, in which the atoms are strongly entangled with each other, we are able to reduce the uncertainty on the atom number difference below the shot noise limit," J?rg Schmiedmayer says. With this technique, the precision of a measurement would eventually be limited by the Heisenberg uncertainty principle only, which sets the ultimate precision boundary allowed by quantum mechanics.

Tiny energy differences measurable

The measurement of an energy difference demonstrates how powerful the method is: after splitting a Bose-Einstein condensate, one half of the cloud is lifted by about 100 nm with respect to the other. This way, the upper part has a bit more gravitational potential energy. Even for this small difference in height, it can be precisely measured using the interferometer. Although such a precision can already be achieved by other interferometric methods, reducing the quantum noise will allow further improvement in the accuracy of measurements using Bose-Einstein condensates.

"The main difficulty was to develop counterparts to the components of an optical Mach-Zehnder interferometer," Tarik Berrada says. This was implemented using an atom chip to generate the magnetic double-well potentials used to precisely control and manipulate the atomic clouds. For instance, in an optical interferometer, the beams are recombined by being overlapped on a half-silvered mirror. In the experiment at TU Vienna, the Bose-Einstein condensates are literally "thrown" on a precisely tunable magnetic potential barrier.

Source: http://feeds.sciencedaily.com/~r/sciencedaily/top_news/top_technology/~3/FugHexmZU_M/130627102633.htm

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Samsung Galaxy Exhibit (MetroPCS)


The $129 Samsung Galaxy Exhibit may not be the most exciting new smartphone, but it does have an interesting twist. While the name on this phone reads MetroPCS, it's actually running on T-Mobile's nationwide network?making it one of the first devices to do so since the companies recently merged. It's a completely average phone, and only available in a few cities, but it's a decent choice if you're looking to get onto T-Mobile's network.

Editors' Note: The Samsung Galaxy Exhibit models on MetroPCS and T-Mobile?are virtually identical, so we're sharing a lot of material between these two reviews. That said, we're testing each device separately, so read the review for your carrier of choice.

Design
The Samsung Galaxy Exhibit is a slightly modified version of the unlocked Galaxy S III Mini. Keep in mind, however, that the GS III Mini isn't a shrunken version of the Galaxy S III?the G S III is bigger and badder in every way. But the Galaxy Exhibit has similar software and features, wrapped up in a smaller, more pocketable design.

From the front, the Galaxy Exhibit does look a lot like a miniaturized version of the Galaxy S III, with the same single Home button, the same plastic silver ring around the face, and the same pebble blue color. But at 4.78 by 2.46 by 0.42 inches (HWD) and 4.27 ounces, it's a lot squatter, thicker, and less elegant. The back panel here is made of matte plastic, and a curiously blue metallic embellishment around the camera sensor makes it look like someone forgot to take the protective shipping sticker off of it.

The nice thing about the design is that this phone is a lot easier to handle than a big phone like the Galaxy S III, especially if you have smaller hands. But I found the on-screen keyboard a bit too small and difficult to type on, which isn't usually a problem I encounter on other phones this size. At least it has Swype built-in, which allows you to drag your finger across the keys in order to type out words more easily.

And speaking of size, the Galaxy Exhibit has a 3.8-inch, 800-by-480-pixel TFT LCD. It looks reasonably sharp, though colors aren't particularly brilliant, and it could stand to go a bit brighter. Two backlit capacitive touch keys can be found on either side of the physical Home key. There's a Power button on the right side of the phone, a Volume rocker and microSD slot on the left, and a power port on the bottom.

Network, Plans, and Call Quality
The Galaxy Exhibit is one of the first MetroPCS phones to run on T-Mobile's network. T-Mobile is GSM-based, as opposed to MetroPCS, which is CDMA. Right now you can only get this phone if you live in Boston, MA; Hartford, CT; or Las Vegas, NV. MetroPCS plans to add additional markets soon, though it makes your chance of getting on T-Mobile's network through MetroPCS extremely limited at the moment.

But if you're a MetroPCS user, why should you want to get on T-Mobile's network anyway? Well, since the T-Mobile/MetroPCS merger, MetroPCS will slowly be folded into T-Mobile. MetroPCS will ultimately stop selling CDMA phones, and while they will continue to work, there will be no additional improvements made to its CDMA network. This is in stark contrast to T-Mobile's GSM and LTE networks, which the company plans to improve considerably. On top of that, if you're using a MetroPCS phone, and you travel outside of the native coverage area, you start to roam on Sprint's 3G network. T-Mobile already has a wider coverage area than MetroPCS, and its 3G network is vastly superior to Sprint's, so you're going to see better speeds.

The Galaxy Exhibit can be paired with any current 4G service plan. Take that with a grain of salt, as the Galaxy Exhibit doesn't support T-Mobile's 4G LTE network, or even HSPA+ 42, so you're not actually getting real 4G data rates. Still, MetroPCS offers some pretty compelling contract-free rates. $40 per month gets you unlimited talk, text, and 500MB of '4G' data, with throttled speeds after that. $50 ups the ante to 2.5GB of '4G' data, while $60 per month gets you truly unlimited everything.

Compare those rates with T-Mobile, where each plan basically costs $10 more. Contract-free rates start at $50 per month, and that gets you all the talk and texts you want, along with 500MB of high-speed (3G or 4G) data per month, after which your speeds are throttled. $60 gets you 2GB of high-speed data, and $70 gets you unlimited high-speed data. But while T-Mobile is just a little pricier, you get a vastly larger selection of phones to choose from.

(Next page: Processor, Multimedia, and Conclusions)

Source: http://feedproxy.google.com/~r/ziffdavis/pcmag/~3/9Lbch7O_cgQ/0,2817,2421053,00.asp

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Climate Change May Radically Transform Desert Bacteria

Climate change may transform the community of microbes that forms the crucial top layer of soil, known as a biocrust, in deserts throughout the United States, new research suggests.

The study, published today (June 27) in the journal Science, found that one type of bacteria dominates in warm climates, whereas another is more prevalent in cooler areas. Combined with climate models, the findings suggest that the cold-loving bacteria could completely disappear from their current habitats as the climate warms.

That disappearance, in turn, could have unpredictable ripple effects across the entire desert ecosystem, study researchers said, as the biocrusts are important resources for desert plants and help mitigate dust storms. [Photos: Mysterious World of Cryptobiotic Soils]

"For the first time, we have shown that the distribution of microbes is also prone to changes due to global warming," said study co-author Ferran Garcia-Pichel, a microbial ecologist at Arizona State University. "We simply don't know the consequences of this."

Ubiquitous organisms

Throughout the arid regions of the western United States, desert soil is permeated by a cryptic collection of photosynthetic organisms, including microbes, lichens and mosses. These mostly bacterial biocrusts anchor the soil, preventing sandstorms and erosion. They also play a critical role in cycling carbon and providing nitrogen in the soil, which feeds the growth of desert plants.

Yet these soils remained virtually unstudied by researchers.

To get a better picture of these cryptic species, Garcia-Pichel and his colleagues conducted a thorough survey of the microbial constituents in biocrusts at 23 sites throughout the western United States. They found that two species ? Microcoleus vaginatus and M. steenstrupii ? each dominated in different regions.

Hot and cold

M. vaginatus predominated in cooler deserts near the California-Oregon border and in Utah, whereas M. steenstrupii was the main bacteria in the scorching deserts of Arizona, New Mexico and California. The researchers looked at several potential causes for the difference in distribution, such as rainfall and soil composition, but found that temperature was the best predictor of which microbe thrived in each region.

To help confirm that this was the major driver behind the distribution, the team then took the bacteria back to the lab and cultured them at different temperatures. Sure enough, M. steenstrupii flourished in warmer conditions and was more tolerant to extreme heat, while the opposite was true for M. vaginatus.

Next, they looked at global warming models, which predicted that the desert regions in the United States would increase in temperature over the next 50 years. With this projected warming, M. vaginatus could completely disappear from the arid regions of the western United States, the researchers said.

The team realized "this is enough temperature to push one of them out of our map,'" Garcia-Pichel told LiveScience.

Unknown consequences

Unfortunately, so little is known about the mysterious M. steenstrupii that no one is sure how this change will impact desert ecosystems, said Jayne Belnap, an ecologist with the U.S. Geological Survey in Moab, Utah, who was not involved in the study.

"These are the only game in town to prevent dust storms and erosion, so they're really, really critical parts of this ecosystem," Belnap told LiveScience. "Yet we've never asked the question, 'who's really in there, and what's going to happen there as things shift?'"

Follow Tia Ghose on Twitter?and Google+.?Follow?LiveScience?@livescience,?Facebook?&?Google+. Original article on?LiveScience.com.

Copyright 2013 LiveScience, a TechMediaNetwork company. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.

Source: http://news.yahoo.com/climate-change-may-radically-transform-desert-bacteria-141321579.html

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Texas Governor Perry vows to pass 20-week abortion ban

By Lisa Maria Garza

DALLAS (Reuters) - Texas Governor Rick Perry made a highly personal criticism on Thursday of the state senator who thwarted a Republican proposal to restrict abortion, saying she had not learned from her own experience as a teenage mother born to a single mother.

In a speech to the largest anti-abortion group in the United States, Perry also accused abortion rights supporters and Democrat Wendy Davis, who talked for more than 10 hours on Tuesday to block the abortion bill, of hijacking the democratic process.

"It's just unfortunate that she hasn't learned from her own example, that every life must be given a chance to realize its full potential and that every life matters," Perry said to a standing ovation from some 300 anti-abortion activists.

Growing up in a single-parent household, Davis worked after school from age 14 to help support her mother and siblings, and by 19, was a single mother herself. She attended a community college in Fort Worth, Texas, then graduated from Texas Christian University and Harvard Law School.

Asked about his comments after the speech, Perry said, "What if her mom had said, 'You know, I don't want to do this?'"

Davis responded in a statement: "Rick Perry's statement is without dignity and tarnishes the high office he holds. They are small words that reflect a dark and negative point of view."

Cecile Richards, President of Planned Parenthood Action Fund, which represents the nation's largest abortion provider, also blasted Perry.

"Rick Perry's remarks are incredibly condescending and insulting to women. ... Women are perfectly capable of deciding whether to choose adoption, end a pregnancy, or raise a child, and they don't need Rick Perry's help making that decision."

But Zonya Townsend, 56, a registered nurse from California who was in the audience for Perry's speech on Thursday, said she agreed with his criticism of Davis.

"She was given the right to live so you would think she'd make the correlation and support the right God has given us," Townsend said.

During the speech, Perry also vowed that Texas would pass the bill opposed by Davis and the Democrats banning abortions after 20 weeks of pregnancy.

The political fight in Texas is the latest in a national battle over abortion restrictions. If the Texas Republican plan passes, it would be the 13th state, and by far the most populous, to ban abortions after 20 weeks of pregnancy.

A new poll on Thursday showed the American public narrowly supports a ban on abortions after 20 weeks except for pregnancies resulting from rape and incest, with 48 percent in favor of a ban, 44 percent opposed and 8 percent unsure. Fifty percent of women surveyed supported such a ban, according to the poll published in the National Journal. It surveyed 1,005 adults from June 20 to 23 and has a margin of error of 3.6 percentage points.

The Republican governor said Wednesday that lawmakers will return to the state capitol for a second special legislative session starting July 1, in part to consider the abortion bill.

On Tuesday night, hundreds of abortion rights supporters chanted and shouted from the gallery as majority Republicans managed to stop Davis' filibuster and pass the bill by a vote of 19 to 10. But the measure was not signed into law until after the midnight deadline for the end of the special session.

"What we witnessed Tuesday was nothing more than the hijacking of the democratic process," said Perry, a candidate for the Republican presidential nomination in 2012 and the nation's longest-serving governor. "This is simply too important a cause to allow unruly actions of a few to stand in its way."

Perry was forced to exit the Republican race for president last year after several gaffes including one debate when he lost his train of thought and could not recall which government departments he wanted to abolish.

Davis has won praise from abortion rights and women's groups for standing up to Perry and the Republican majority in Texas, and her filibuster was streamed live online. Even before that, there was speculation about her becoming a future candidate for governor in a state that has not elected a Democrat to statewide office in two decades.

(Editing by Corrie MacLaggan and Eric Walsh)

Source: http://news.yahoo.com/texas-governor-perry-vows-pass-20-week-abortion-155905334.html

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Target cuts ties with Deen; drugmaker distances

NEW YORK (AP) ? Target Corp. said Thursday that it is ending its relationship with celebrity cook Paula Deen as fallout builds from revelations that the Southern celebrity chef used racial slurs in the past. Diabetes drug maker Novo Nordisk also joined the companies distancing themselves from her.

The discounter, based in Minneapolis, said that it will phase out its Paula Deen-branded cookware and other items.

"Once the merchandise is sold out, we will not be replenishing inventory," said Molly Snyder, a Target spokeswoman.

Diabetes drug maker Novo Nordisk said Thursday it and Deen have "mutually agreed to suspend our patient education activities for now."

The developments are the latest blow to Deen's business.

Wal-Mart Stores Inc., the world's largest retailer, said Wednesday that it's also cutting ties with Deen. The world's largest retailer currently carries a variety of products under her moniker, including food items, cookware and health and wellness products, at all of its 4,000 U.S. namesake stores. The retailer began selling her merchandise several years ago. Wal-Mart said it will not place any new orders beyond what's already committed and is working with suppliers to address existing inventories and agreements.

Meanwhile, Paula Deen's name is being stripped from four buffet restaurants owned by Caesars. Caesars said Wednesday that its decision to rebrand its restaurants in Joliet, Ill.; Tunica, Miss.; Cherokee, N.C.; and Elizabeth, Ind., was a mutual one with Deen.

Last week, the Food Network said that it would not renew the celebrity cook's contract. And on Monday, Smithfield Foods said it was dropping her as a spokeswoman. Smithfield sold Paula Deen-branded hams in addition to featuring her as a spokeswoman.

Amid the losses, book-buyers are standing by Deen.

As of Thursday morning, "Paula Deen's New Testament: 250 Recipes, All Lightened Up," ranked No. 1 on Amazon.com. The book is scheduled for October. Another Deen book, "Paula Deen's Southern Cooking Bible," was at No. 13. Several other Deen books were out of stock.

Deen appeared in a "Today" show interview Wednesday, dissolving into tears and saying that anyone in the audience who's never said anything they've regretted should pick up a rock and throw it at her head.

The chef, who specializes in Southern comfort food, repeated that she's not a racist.

___

AP National Writer Hillel Italie contributed to this report from New York.

Source: http://news.yahoo.com/target-cuts-ties-deen-drugmaker-distances-155508712.html

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Violent birth of neutron stars: Computer simulations confirm sloshing and spiral motions as stellar matter falls inward

June 27, 2013 ? A team of researchers at the Max Planck Institute for Astrophysics conducted the most expensive and most elaborate computer simulations so far to study the formation of neutron stars at the center of collapsing stars with unprecedented accuracy. These worldwide first three-dimensional models with a detailed treatment of all important physical effects confirm that extremely violent, hugely asymmetric sloshing and spiral motions occur when the stellar matter falls towards the center. The results of the simulations thus lend support to basic perceptions of the dynamical processes that are involved when a star explodes as supernova.

Stars with more than eight to ten times the mass of our Sun end their lives in a gigantic explosion, in which the stellar gas is expelled into the surrounding space with enormous power. Such supernovae belong to the most energetic and brightest phenomena in the universe and can outshine a whole galaxy for weeks. They are the cosmic origin of chemical elements like carbon, oxygen, silicon, and iron, of which Earth and our bodies are made of, and which are bred in massive stars over millions of years or freshly fused in the stellar explosion.

Supernovae are also the birth places of neutron stars, those extraordinarily exotic, compact stellar remnants, in which about 1.5 times the mass of our Sun is compressed to a sphere with the diameter of Munich. This happens within fractions of a second when the stellar core implodes due to the strong gravity of its own mass. The catastrophic collapse is stopped only when the density of atomic nuclei -- gargantuan 300 million tons in a sugar cube -- is exceeded.

What, however, causes the disruption of the star? How can the implosion of the stellar core be reversed to an explosion? The exact processes are still a matter of intense research. According to the most widely favored scenario, neutrinos, mysterious elementary particles, play a crucial role. These neutrinos are produced and radiated in tremendous numbers at the extreme temperatures and densities in the collapsing stellar core and nascent neutron star. Like the thermal radiation of a heater they heat the gas surrounding the hot neutron star and thus could "ignite" the explosion. In this scenario the neutrinos pump energy into the stellar gas and build up pressure until a shock wave is accelerated to disrupt the star in a supernova. But does this theoretical idea really work? Is it the explanation of the still enigmatic mechanism driving the explosion?

Unfortunately (or luckily!) the processes in the center of exploding stars cannot be reproduced in the laboratory and many solar masses of intransparent stellar gas obscure our view into the deep interior of supernovae. Research is therefore strongly dependent on most sophisticated and challenging computer simulations, in which the complex mathematical equations are solved that describe the motion of the stellar gas and the physical processes that occur at the extreme conditions in the collapsing stellar core. For this task the most powerful existing supercomputers are used, but still it has been possible to conduct such calculations only with radical and crude simplifications until recently. If, for example, the crucial effects of neutrinos were included in some detailed treatment, the computer simulations could only be performed in two dimensions, which means that the star in the models was assumed to have an artificial rotational symmetry around an axis.

Thanks to support from the Rechenzentrum Garching (RZG) in developing a particularly efficient and fast computer program, access to most powerful supercomputers, and a computer time award of nearly 150 million processor hours, which is the greatest contingent so far granted by the "Partnership for Advanced Computing in Europe (PRACE)" initiative of the European Union, the team of researchers at the Max Planck Institute for Astrophysics (MPA) in Garching could now for the first time simulate the processes in collapsing stars in three dimensions and with a sophisticated description of all relevant physics.

"For this purpose we used nearly 16,000 processor cores in parallel mode, but still a single model run took about 4.5 months of continuous computing," says PhD student Florian Hanke, who performed the simulations. Only two computing centers in Europe were able to provide sufficiently powerful machines for such long periods of time, namely CURIE at Tr?s Grand Centre de calcul (TGCC) du CEA near Paris and SuperMUC at the Leibniz-Rechenzentrum (LRZ) in Munich/Garching.

Many Terabytes of simulation data (1 Terabyte are thousand billion bytes) had to be analysed and visualized before the researchers could grasp the essence of their model runs. What they saw caused excitement as well as astonishment. The stellar gas did not only exhibit the violent bubbling and seething with the characteristic rising mushroom-like plumes driven by neutrino heating in close similarity to what can be observed in boiling water. (This process is called convection.) The scientists also found powerful, large sloshing motions, which temporarily switch over to rapid, strong rotational motions. Such a behavior had been known before and had been named "Standing Accretion Shock Instability," or SASI. This term expresses the fact that the initial sphericity of the supernova shock wave is spontaneously broken, because the shock develops large-amplitude, pulsating asymmetries by the oscillatory growth of initially small, random seed perturbations. So far, however, this had been found only in simplified and incomplete model simulations.

"My colleague Thierry Foglizzo at the Service d' Astrophysique des CEA-Saclay near Paris has obtained a detailed understanding of the growth conditions of this instability," explains Hans-Thomas Janka, the head of the research team. "He has constructed an experiment, in which a hydraulic jump in a circular water flow exhibits pulsational asymmetries in close analogy to the shock front in the collapsing matter of the supernova core." This phenomenon was named "SWASI" ("Shallow Water Analogue of Shock Instability") and allows one to demonstrate dynamical processes in the deep interior of a dying star by a relatively simple and inexpensive experimental setup of table size, of course without accounting for the important effects of neutrino heating. For this reason many astrophysicists had been sceptical that this instability indeed occurs in collapsing stars.

The Garching team could now demonstrate for the first time unambiguously that the SASI also plays an important role in the so far most realistic computer models. "It does not only govern the mass motions in the supernova core but it also imposes characteristic signatures on the neutrino and gravitational-wave emission, which will be measurable for a future Galactic supernova. Moreover, it may lead to strong asymmetries of the stellar explosion, in course of which the newly formed neutron star will receive a large kick and spin," describes team member Bernhard M?ller the most significant consequences of such dynamical processes in the supernova core.

The researchers now plan to explore in more detail the measurable effects connected to the SASI and to sharpen their predictions of associated signals. Moreover, they plan to perform more and longer simulations to understand how the instability acts together with neutrino heating and enhances the efficiency of the latter. The goal is to ultimately clarify whether this conspiracy is the long-searched mechanism that triggers the supernova explosion and thus leaves behind the neutron star as compact remnant.

Source: http://feeds.sciencedaily.com/~r/sciencedaily/top_news/top_technology/~3/xulUjZRJoLM/130627083034.htm

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Reply to Cassidy (talking-points-memo)

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I?m So Excited

Javier Cámara, Raúl Arévalo and Carlos Areces in I'm So Excited.

Javier C?mara, Ra?l Ar?valo and Carlos Areces in I'm So Excited.

Courtesy of El Deseo S.A.

I?m So Excited, Pedro Almod?var?s frothy follow-up to his dark, masterful melodrama The Skin I Live In (2011), is decidedly minor Almod?var, a sassy disaster-movie spoof that might as well be titled Gays on a Plane. With its sometimes-poky pacing and untranslatable double entendres, this wouldn?t be the movie to win over an Almod?var virgin?if you want to show a newbie what this magnificent writer-director is capable of, show that person Talk to Her (2002) or All About My Mother (1999) or, in a more overtly comic vein, Women on the Verge of a Nervous Breakdown (1988). Nevertheless, I?m So Excited (in Spanish, the title is Los amantes pasajeros, meaning both ?the fleeting lovers? and ?the passenger lovers?) looks fabulous, talks dirty, and sometimes makes you laugh, which is really all you can ask of a fleeting lover.

Like A Midsummer Night?s Dream, this is an erotic roundelay in which magic potions (here, not flower juice but tequila and cocktails spiked with mescaline) serve as both aphrodisiac and matchmaker. By film?s end, everyone?gay, straight, or bi?has found his or her match (or at least some action at 30,000 feet). We begin with a glimpse of a happy couple?played in teasingly short surprise cameos by two Almod?var regulars?working as baggage handlers at the Madrid airport. When they?re distracted by a mishap on the runway, the landing gear of a jet is damaged, leading to the crisis that will drive the film?s story: While a runway is being found for a dangerous emergency landing, the plane must fly in circles while the increasingly anxious passengers try to settle their affairs and make peace with their loved ones on the ground (via an in-flight phone that, thanks to a narratively convenient broken speaker, broadcasts conversations to the entire cabin). A soap-opera star (Guillermo Toledo) gets in touch with his suicidal girlfriend (Paz Vega); a crooked investment banker (Jos? Luis Torrijo) has an emotional phone conversation with his long-estranged adult daughter; and a paranoid dominatrix (Cecilia Roth) tries to determine which of her enemies has put out a hit on her. (Meanwhile, all of economy class, for reasons that are never quite clear, has been dosed by the crew with sleep-inducing muscle relaxants.)

Many of the funniest scenes take place in the cockpit, where the bisexual pilot (Antonio de la Torre) and the straight (or is he?) co-pilot (Hugo Silva) bicker with the flamboyantly queeny head steward, Joserra (the dependably superb Javier C?mara), over how best to handle their plane full of nervous passengers. Joserra (who declares himself physically incapable of lying after a long-ago trauma involving a corporate cover-up) can?t stop blurting out the upsetting truth between shots of tequila. By way of distracting the passengers from their fear, Joserra?s fellow ?ber-gay stewards, Ulloa (Ra?l Ar?valo) and Fajas (Carlos Areces) perform an engagingly campy lip-sync of the Pointer Sisters hit that gives the film its English title. Eventually the magical properties of that hallucinogen-laced cocktail?along with the dire predictions of a ditzy passenger (Lola Due?as) who declares herself both a psychic and a virgin?get the whole plane worked up into a death-fearing, sex-craving lather, until ? let?s just say the Mile High Club gets enough new members to open a whole new chapter.

Almod?var has said that the endless circling of this fictional flight over the center of Spain is meant in part as a commentary on the country?s current economic crisis, and if you pay close attention, the repeated references to bank swindles and government double-crosses (not to mentioned those narcotized lower classes) bear that reading out. But I?m So Excited works principally as a visually lavish celebration of the liberating power of hedonism, in the vein of the director?s early works. The sex jokes and performances are as broad as a barn, but it?s a stylishly painted one: the design, right down to the crisp red-and-white trim on the stewards? spiffy sky-blue uniforms, is delicious, and the lush orchestral score by longtime Almod?var collaborator Alberto Iglesias slyly references both Hitchcock thrillers and classic disaster films. At times this slightly manic movie strains too hard to reassure us that the lyrics of that Pointer Sisters song hold true, that we?re all in this together and having a wonderful time. But as this death-obsessed farce barreled along toward its sexy crash-landing climax, I?m So Excited let me lose control, and I think I liked it.

Source: http://www.slate.com/articles/arts/movies/2013/06/pedro_almod_var_s_i_m_so_excited_reviewed_so_sassy_it_might_as_well_be_called.html

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Friday, June 28, 2013

Digg adds reader to its iOS app, offers instant Google Reader import

Image

There's more than a few enterprises that have an eye on filling the void in the RSS market left by Google's curious withdrawal. Digg is one of those hoping to woo Mountain View's refugees and has updated its iOS app to incorporate its experimental new service, which offers direct imports from Google Reader. It's available from the App Store right now, but we'd be remiss if we didn't mention that there are other, ahem, AOL-sanctioned, alternatives.

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Source: http://feeds.engadget.com/~r/weblogsinc/engadget/~3/BlYVvCIuJdI/

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Deal of the Day: 36% off the Incipio Frequency Semi Rigid Soft Shell Case for iPhone 5

Today Only: Purchase the Incipio Frequency Semi Rigid Soft Shell Case for iPhone 5 and save $8.99!

Offering full wrap-around protection, the FREQUENCY case by Incipio is crafted with shock-absorbing polymer. Designed with a transparent response deco pattern, the music influenced case offers a smooth, unique and protective design for your iPhone 5. Available in black, pink, purple, teal and gray.

List Price: $24.99???? Today Only: $16.00

Learn More and Buy Now

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