Azarenka eludes chokehold, gains Australian final

MELBOURNE, Australia (AP) — Sloane Stephens sat for nine minutes, mostly staring at the court and trying to forget the curious timing of Victoria Azarenka's medical timeout. She may have been the only one trying to ignore it.

The 19-year-old American had just saved five match points and broken Azarenka. But she knew she had to hold serve to stay in her first Grand Slam semifinal whenever Azarenka — the No. 1 player and defending Australian Open champion — returned to Rod Laver Arena.

The restless murmuring in the crowd gave way to slow claps. Why had Azarenka chosen that very moment for a medical break?

Azarenka eventually hustled onto the court, and Stephens won only three more points, losing 6-1, 6-4.

"I almost did the choke of the year," Azarenka said in a frank admission during an on-court interview. "At 5-3, having so many chances, I couldn't close it out."

The crowd that had cheered wildly for Stephens, only 25 hours after she ousted an injured Serena Williams, gave Azarenka tepid applause as she left the court. She'll face 2011 finalist Li Na in the final Saturday night. Given the support Li enjoyed in her 6-2, 6-2 win over No. 2-ranked Maria Sharapova, there's no question which player the crowd will favor in the title match.

Azarenka's immediate post-match remarks suggest she panicked after failing to convert five match points, her forehand misfiring. She had little trouble finishing the match after she came back, and the No. 29-seeded Stephens had cooled off.

"I just felt a little bit overwhelmed. I realized I'm one step away from the final and nerves got into me for sure," Azarenka said.

The 23-year-old Belarusian said she was later compelled to explain that she misunderstood the question in the on-court interview, and she wanted to dispel the perception that her medical timeout amounted to little more than gamesmanship.

"I understand the point of people maybe not understanding what I said; me not understanding what I've been asked," she said during an official news conference more than two-thirds devoted to questions on her medical timeout. "So I'm just glad that I'm here, you know, to make everything clear.

"You know, I think you cannot really judge by (a) few words. The situation had to be explained."

Medical staff said Azarenka had timeouts for treatment of left knee and rib injuries. The rib needed to be manipulated because it was affecting her breathing. Tournament director Craig Tiley said Azarenka hadn't broken any rules.

Azarenka hadn't helped herself in a second television interview after the match when she said she couldn't breathe.

"I had chest pains," she said. "It was like I was getting a heart attack."

She tried to allay any negative perception with her explanation that the choking was related to shortness of breath from the rib injury, not her faltering game.

"When you cannot breathe you start to panic," she said. "I was really panicking, not because I couldn't convert my match point. That's not the case. I mean, I'm experienced enough to go over those emotions. But when you cannot breathe, when something's really blocking you, the stress — that was the stress I was talking about.

"What I said — that I was stressed out and choked — was not because I couldn't finish my shot. It was just so stressing me out the pain that I had that, maybe it was overreaction, but I just really couldn't breathe."

Azarenka had retired during previous Grand Slam matches, including a fourth-round match against Serena Williams at the 2009 Australian Open. But with a second major title so close, and the fact she needed to reach the final to retain the No. 1 ranking, she desperately didn't want to quit this time.

For her part, Stephens seemed sympathetic. She had to wait through a medical timeout Wednesday when Williams received treatment for a sore back — the 15-time major winner injured herself after leading by a set and a break. Another rival earlier in the tournament took a long break between sets for other reasons.

"I mean, when you take a medical break or timeout, obviously it's for a reason," she said. "I mean, just another something else that happens. If it was one of my friends, I would say, 'Oh, my God, that sounds like a PP, which is a personal problem. Other than that, it's just unfortunate."

Besides, Stephens said, it didn't affect the outcome of the match.

"No, not at all. She played obviously a really good match," she said. "First set she played awesome; got close in the second. It didn't go my way, but I wouldn't say at all what happened affected the match."

Novak Djokovic dispensed with No. 4-seeded David Ferrer 6-2, 6-2, 6-1 in the night match, saying he "played perfectly" to reach his third consecutive Australian Open title match. Then he dispensed some medical advice of his own.

The Serb, who won the Australian titles in 2008, 2011 and 2012, wore a white shirt with a red cross on the back, pretending to be a doctor to treat Henri Leconte during a legends doubles match at Rod Laver Arena.

He's relaxed now that he has an extra day to prepare for Sunday's final. Djokovic will next play the winner of Friday's semifinal between No. 2 Roger Federer, a four-time Australian Open champion, and No. 3 Andy Murray, the U.S. Open champion.

Djokovic lost only seven points in 11 service games against Ferrer, and hit 30 crisp, clean winners in an almost flawless performance.

"I cannot remember the last time I played so well," Djokovic said. "I've played many great matches, but this one stands out. Hopefully, I can play the same level on Sunday."

He played confidently in the first two sets, and was sublime in the third. Even Ferrer, who has now lost five Grand Slam semifinals and never reached a championship match, was surprised.

After hitting a forehand a fraction wide of the line and losing his challenge in a review, Ferrer double-faulted to give Djokovic match point. The errors were a measure of just how much pressure Djokovic was applying.

Right after his semifinal, Djokovic started playing mind games leading to the final.

"Federer-Murray, when they're playing it's always very close," he said, confirming he'd be closely watching the match. "I wouldn't give the role of the favorite to either of them. I expect to enjoy it. Whoever I play against, I'm going to be ready."

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New Mutations Discovered in Melanomas

In a leap forward in understanding the basic science of one of the most lethal cancers, two groups of researchers have found mutations in most melanomas that are unlike any they have seen before in cancer. The changes are in regions that control genes, not in the genes themselves. The mutations are exactly the type caused by exposure to ultraviolet light, indicating they might be among the first DNA changes in a cell’s path to melanoma.

The discoveries, published online Thursday in two papers in the journal Science Express, do not immediately suggest new treatments or ways to prevent melanoma, researchers said. But the findings help explain how melanomas — and, possibly, other cancers — develop and what drives their growth, insights that may be critical to long-term efforts to develop ways to prevent or stop the cancer.

For years, cancer researchers have searched for mutations in genes, but this time, they looked for — and found — mutations in a region that regulates genes. They did it by examining the entire DNA of multiple tumors, studying not just genes but also what has been called the dark matter, the 99 percent of the DNA that includes regions that control genes.

“You could think of this as one glimmer in what has been called cancer’s dark matter,” said Dr. Levi A. Garraway of the Dana-Farber Cancer Institute and the Broad Institute of Harvard and M.I.T.

The complete DNA sequences of 70 malignant melanomas led to the new discovery. A small control region was mutated in 7 out of 10 of the tumors, and also, the investigators found, in liver and bladder cancers. The cancer cells had one of two tiny changes that together were more common than any mutation ever found in the genes of melanoma.

A team led by Rajiv Kumar of the German Cancer Research Center in Heidelberg and Dirk Schadendorf of the University of Essen looked for the mutations in a family whose members tended to get melanoma. Four relatives who developed melanoma had inherited one of them, while four who remained melanoma-free did not have it. They also found the mutation in a 36-year-old member of the family who had not developed melanoma but had had many moles, often a sign of risk in families prone to melanoma.

Their findings indicate that those who inherit the mutations might be born with cells that have taken a first step toward cancer.

The mutations spur cells to make an enzyme, telomerase, that keeps cells immortal by preventing them from gradually losing the ends of their chromosome, the telomeres. When telomeres erode, a cell dies. But the enzyme also has other, poorly understood functions that are thought to keep cancer cells alive, said Robert Weinberg, an M.I.T. researcher who studies telomerase and cancer and was not involved with the research. “The paradigm that it does nothing but extend telomeres is a gross oversimplification,” he said.

Abundant telomerase is so important to cancers that it occurs in 90 percent of them, said Immaculata De Vivo, a Harvard Medical School researcher who studies telomerase and cancer and directs a DNA sequencing program. She, too, was not involved with the research.

The results of the two studies presented in the papers “are like a court of law — it’s the preponderance of the evidence,” she said. “We all knew telomerase was important for cancer, but now we are finding the mechanisms, the machinery.”

Scientists were surprised that the mutations in the dark matter of melanoma tumors were so commonplace. Dr. Garraway and his colleagues had the entire DNA sequences for a collection of melanomas — genes as well as the rest of the DNA including areas that turn genes on and off.

“We said, ‘Let’s just take a look and see if there are any mutations in a regulatory region,” Dr. Garraway said.

At first, they looked at the DNA sequences of 19 tumors. They were amazed to find one or the other of the two mutations in 17 of them. So the researchers decided to look at 51 additional melanomas and a handful of bladder and liver cancers. The mutations popped up again.

“It was really quite striking,” Dr. Garraway said.

But it’s not clear how to reverse the mutations’ cancer-causing effects, Dr. Garraway said. And although people have long wanted to block telomerase production in cancer cells, they have not found a drug to do it.

Still, the findings are highly significant, experts said.

“We have always known that just looking at genes alone would provide a limited number of answers about why cancer develops,” said Elaine Mardis of Washington University, who was not involved with the research. “The brakes or the gas that control the genes that cause cancer are as important as gene mutations,” she said. The new papers, Dr. Mardis added, “show where additional answers may lie.”

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DealBook: Choice for S.E.C. Is Ex-Prosecutor, in Signal to Wall St.

2:48 p.m. | Updated President Obama tapped Mary Jo White, a former United States attorney turned white-collar defense lawyer, to be the next chairwoman of the Securities and Exchange Commission.

Mr. Obama announced the nomination at the White House on Thursday afternoon. As part of the event, the White House also renominated Richard Cordray to lead the Consumer Financial Protection Bureau, a role he has held for the last year under a recess appointment.

In its choice of Ms. White and Mr. Cordray, the White House is sending a signal about the importance of holding Wall Street accountable for wrongdoing. Both picks are former prosecutors.

Regulatory chiefs are often market experts or academics. But Ms. White spent nearly a decade as United States attorney in New York, the first woman named to this post. Among her prominent cases, she oversaw the prosecution of the mafia boss John Gotti as well as the people responsible for the 1993 World Trade Center bombing. She is now working the other side, defending Wall Street firms and executives as a partner at Debevoise & Plimpton.

As the attorney general of Ohio, Mr. Cordray made a name for himself suing Wall Street companies in the wake of the financial crisis. He undertook a series of prominent lawsuits against big names in the finance world, including Bank of America and the American International Group.

The White House expects Ms. White, 65, and Mr. Cordray, 53, to draw on their prosecutorial backgrounds while carrying out a broad regulatory agenda under the Dodd-Frank Act. Congress enacted the law, which mandates a regulatory overhaul, in response to the 2008 financial crisis.

Jay Carney, the White House press secretary, said Ms. White has “an incredibly impressive resume” and that her appointment along with the renomination of Mr. Cordray sends an important signal.

“The president believes that appointment and the renomination he’s making today demonstrate the commitment he has to carrying out Wall Street reform, making sure we have the rules of the road that are necessary and that are being enforced in a way” to avoid a crisis like that of 2008, Mr. Carney said.

Another White House official added that Ms. White and Mr. Cordray will “serve in top enforcement roles” in part so that “Wall Street is held accountable and middle-class Americans never again are harmed by the abuses of a few.”

Ms. White will succeed Elisse B. Walter, a longtime S.E.C. official, who took over as chairwoman after Mary L. Schapiro stepped down as the agency’s leader in December. Mr. Cordray joined the consumer bureau in 2011 as its enforcement director.

The nominations could face a mixed reception in Congress. The Senate already declined to confirm Mr. Cordray, with Republicans vowing to block any candidate for the consumer bureau, a new agency created to rein in the financial industry’s excesses. It is unclear whether the White House and Mr. Cordray will face another standoff the second time around.

Mr. Carney argued that there were no substantive objections to Mr. Cordray’s confirmation, only political ones. “He is absolutely the right person for the job,” Mr. Carney said.

Ms. White is expected to receive broader support on Capitol Hill. Senator Charles E. Schumer, a New York Democrat, declared that Ms. White was a “tough-as-nails prosecutor” who “will not shy away from enforcing the laws to ensure that markets operate fairly.”

But she could face questions about her command of arcane financial minutiae. She was a director of the Nasdaq stock market, but has otherwise built her career on the law-and-order side of the securities industry.

People close to the S.E.C. note, however, that her husband, John W. White, is a veteran of the agency. From 2006 through 2008, he was head of the S.E.C.’s division of corporation finance, which oversees public companies’ disclosures and reporting.

Some Democrats also might question her path through the revolving door, in and out of government. While seen as a strong enforcer as a United States attorney, she went on in private practice to defend some of Wall Street’s biggest names, including Kenneth D. Lewis, a former head of Bank of America. She also represented JPMorgan Chase and the board of Morgan Stanley. Last year, the N.F.L. hired her to investigate allegations that the New Orleans Saints carried out a bounty system for hurting opponents.

Consumer advocates generally praised her appointment on Thursday. “Mary Jo White was a tough, smart, no-nonsense, broadly experienced and highly accomplished prosecutor,” said Dennis Kelleher, head of Better Markets, the nonprofit advocacy group. “She knew who the bad guys were, went after them and put them in prison when they broke the law.”

The appointment comes after the departure of Ms. Schapiro, who announced she would step down from the S.E.C. in late 2012. In a four-year tenure, she overhauled the agency after it was blamed for missing the warning signs of the crisis.

Since her exit, Washington and Wall Street have been abuzz with speculation about the next S.E.C. chief. President Obama quickly named Ms. Walter, then a Democratic commissioner at the agency, but her appointment was seen as a short-term solution. It is unclear if she will shift back to the commissioner role if Ms. White is confirmed.

In the wake of Ms. Schapiro’s exit, several other contenders surfaced, including Sallie L. Krawcheck, a longtime Wall Street executive. Richard G. Ketchum, chairman and chief executive of the Financial Industry Regulatory Authority, Wall Street’s internal policing organization, was also briefly mentioned as a long-shot contender.

Peter Baker and Kitty Bennett contributed reporting

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The Lede Blog: Clinton Testifies on Benghazi Attacks

Visit NBCNews.com for breaking news, world news, and news about the economy

The Lede is following Secretary of State Hillary Rodham Clinton’s testimony Wednesday before the House Foreign Affairs Committee about the Sept. 11, 2012, attacks on the American Consulate in the eastern city of Benghazi, Libya, that killed Ambassador Chris Stevens and three other Americans. Earlier today, she testified before the Senate Foreign Relations Committee .

At a House Committee hearing last October investigating the attack, as reported on The Lede, State Department officials and security experts who served on the ground offered conflicting assessments about what resources were requested and made available to deal with growing security concerns in Tripoli and Benghazi.

Mrs. Clinton had been scheduled to testify before Congress last month, but an illness, a concussion and a blood clot near her brain forced her to postpone her appearance.

As our colleagues Michael R. Gordon and Eric Schmitt reported, four State Department officials were removed from their posts on last month after an independent panel criticized the “grossly inadequate” security at a diplomatic compound in Benghazi.

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Why the Future of TV Still Isn’t Here Yet

As content providers continue to intimidate tech companies with a seemingly endless couch-potato conundrum, the latest innovation in the war to win your living room isn’t some new gadget from Apple or Netflix, or even that exciting à la carte content delivery system from Intel — it’s a protocol that helps our screens better communicate with one another. YouTube and Netflix have teamed up to create something called DIAL, a competitor of sorts to Apple’s AirPlay, which, as GigaOm’s Janko Roettgers describes it, ”helps developers of second-screen apps to discover and launch applications on smart TVs and connected devices.” Basically, it turns your phone into a kind of wireless super-remote for your TV, as Roettgers explains: 

With DIAL, the Netflix app on your phone will automatically discover that there is a device with a Netflix app connected to your TV. It will fire up that app, and then the two apps are free to do whatever they want — which presumably involves some healthy binge-viewing.

This solves a “big problem” because it makes using those apps on your smart television a lot easier.  As of right now, controlling the Netflix app on a PlayStation still requires the console remote to open up the app on your television before controlling it from a phone or tablet. This eliminates a step — and that, ladies and gents, is the biggest thing actually happening in TV tech right now. Instead of letting us pay just for the content we want, the cable industry’s aging model is still forcing tech companies to help us sift through all the extras were forced to buy. Because with the big media companies refusing to budge on innovative content deals so far this year, “content discovery” tools like GIAL and AirPlay remain one of the only ways everyone can get along. 

RELATED: Netflix Is Winning the Internet

It wasn’t supposed to be this way, of course. Many expected hardware like a supped-up Apple TV or the Roku streaming stick to “fix” television — instead of some protocol that makes finding stuff on our TVs easier. But, as Netflix discovered when it tried to get in the hardware business, the total package can alienate the other key players. Back in 2007, the streaming company had a set-top box in the works that would transform Netflix into a cable competitor, reports Fast Company’s Austin Carr. But CEO Reid Hastings scrapped the idea because it was too competitive. “We could not be competing against Sony, LG, and Samsung,” says Steve Swasey, then the company’s VP of communications. On top of the potential loss of support from hardware makers, this separate Netflix box scared away the content owners, with which Netflix has worked so hard to get streaming TV deals. 

RELATED: The Future of Streaming Video Looks Like TV Reruns

The old-school media industry’s fear of tech-world competition has driven the future of television in a spiraling direction. When one of the too-many entities gets offended, the future falls apart, as we saw with Google TV in an experiment that ultimately scared off content providers as well. A protocol like DIAL is the politically correct solution: It doesn’t change how we pay for content — but it sure does work within the comfortable way we’re used to sitting down and watching TV!

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Seau's family sues NFL over brain injuries

The family of Junior Seau has sued the NFL, claiming the former linebacker's suicide was the result of brain disease caused by violent hits he sustained while playing football.

The wrongful death lawsuit, filed Wednesday in California Superior Court in San Diego, blames the NFL for its "acts or omissions" that hid the dangers of repetitive blows to the head. It says Seau developed chronic traumatic encephalopathy (CTE) from those hits, and accuses the NFL of deliberately ignoring and concealing evidence of the risks associated with traumatic brain injuries.

Seau died at age 43 of a self-inflicted gunshot in May. He was diagnosed with CTE, based on posthumous tests, earlier this month.

An Associated Press review in November found that more than 3,800 players have sued the NFL over head injuries in at least 175 cases as the concussion issue has gained attention in recent years. More than 100 of the concussion lawsuits have been brought together before U.S. District Judge Anita B. Brody in Philadelphia.

"Our attorneys will review it and respond to the claims appropriately through the court," the NFL said in a statement Wednesday.

Helmet manufacturer Riddell Inc., also is being sued by the Seaus, who say Riddell was "negligent in their design, testing, assembly, manufacture, marketing, and engineering of the helmets" used by NFL players. The suit says the helmets were unreasonably dangerous and unsafe.

Seau was one of the best linebackers during his 20 seasons in the NFL. He retired in 2009.

"We were saddened to learn that Junior, a loving father and teammate, suffered from CTE," the family said in a statement released to the AP. "While Junior always expected to have aches and pains from his playing days, none of us ever fathomed that he would suffer a debilitating brain disease that would cause him to leave us too soon.

"We know this lawsuit will not bring back Junior. But it will send a message that the NFL needs to care for its former players, acknowledge its decades of deception on the issue of head injuries and player safety, and make the game safer for future generations."

Plaintiffs are listed as Gina Seau, Junior's ex-wife; Junior's children Tyler, Sydney, Jake and Hunter, and Bette Hoffman, trustee of Seau's estate.

The lawsuit accuses the league of glorifying the violence in pro football, and creating the impression that delivering big hits "is a badge of courage which does not seriously threaten one's health."

It singles out NFL Films and some of its videos for promoting the brutality of the game.

"In 1993's 'NFL Rocks,' Junior Seau offered his opinion on the measure of a punishing hit: 'If I can feel some dizziness, I know that guy is feeling double (that)," the suit says.

The NFL consistently has denied allegations similar to those in the lawsuit.

"The NFL, both directly and in partnership with the NIH, Centers for Disease Control and other leading organizations, is committed to supporting a wide range of independent medical and scientific research that will both address CTE and promote the long-term health and safety of athletes at all levels," the league told the AP after it was revealed Seau had CTE.

The lawsuit claims money was behind the NFL's actions.

"The NFL knew or suspected that any rule changes that sought to recognize that link (to brain disease) and the health risk to NFL players would impose an economic cost that would significantly and adversely change the profit margins enjoyed by the NFL and its teams," the Seaus said in the suit.

The National Institutes of Health, based in Bethesda, Md., studied three unidentified brains, one of which was Seau's, and said the findings on Seau were similar to autopsies of people "with exposure to repetitive head injuries."

"It was important to us to get to the bottom of this, the truth," Gina Seau told the AP then. "And now that it has been conclusively determined from every expert that he had obviously had CTE, we just hope it is taken more seriously. You can't deny it exists, and it is hard to deny there is a link between head trauma and CTE. There's such strong evidence correlating head trauma and collisions and CTE."

In the final years of his life, Seau went through wild behavior swings, according to Gina and to 23-year-old son, Tyler. There also were signs of irrationality, forgetfulness, insomnia and depression.

"He emotionally detached himself and would kind of 'go away' for a little bit," Tyler Seau said. "And then the depression and things like that. It started to progressively get worse."

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Well: Can You Read the Face of Victory?

Picture a tennis player in the moment he scores a critical point and wins a tournament. Now picture his opponent in the instant he loses the point that narrowly cost him the title. Can you tell one facial expression from the other, the look of defeat from the face of victory?

Try your hand at the images below, of professional tennis players at competitive tournaments. All were included in a new study that suggests that the more intense an emotion, the harder it is to distinguish it in a facial expression.

The researchers found that when overwhelming feelings set in, the subtle cues that convey emotion are lost, and facial expressions tend to blur. The face of joy and celebration often appears no different from the look of grief and devastation. Winning looks like losing. Pain resembles pleasure.

But that is not the case when it comes to body language. In fact, the new study found, people are better able to identify extreme emotions by reading body language than by looking solely at facial expressions. But even though we pick up on cues from the neck down to interpret emotion, we instinctively assume that it is the face that tells us everything, said Hillel Aviezer, a psychologist who carried out the new research with colleagues at Princeton University.

“When emotions run high, the face becomes more malleable: it’s not clear if there’s positivity or negativity going on there,” he said. “People have this illusion that they’re reading all this information in the face. We found that the face is ambiguous in these situations and the body is critical.”

Dr. Aviezer and his colleagues, who published their work in the journal Science, carried out four experiments in which subjects were asked to identify emotions by looking at photographs of people in various situations. In some cases, the subjects were shown facial expressions alone. In others, they looked at body language, either alone or in combination with faces. The researchers chose photographs taken in moments when emotions were running high – as professional tennis players celebrated or agonized, as loved ones grieved at funerals, as needles punctured skin during painful body piercings.

According to classic behavioral theories, facial expressions are universal indicators of mood and emotion. So the more intense a particular emotion, the easier it should be to identify in the face. But the study showed the exact opposite. As emotions peaked in intensity, expressions became distorted, similar to the way cranking up the volume on a stereo makes the music unrecognizable.

“When emotions are extremely high, it’s as if the speakers are blaring and the signal is degraded,” said Dr. Aviezer, who is now at Hebrew University in Jerusalem. “When the volume is that high, it’s hard to tell what song is playing.”

In one experiment, three groups of 15 people were shown photographs of professional tennis players winning and losing points in critical matches. When the subjects were shown the players’ expressions alone — separated from their bodies — they correctly identified their emotion only half of the time, which was no better than chance. When they looked at images of just the body with the face removed — or the body with the face intact — they were far more accurate at identifying emotions. Yet when asked, 80 percent said they were relying on the facial expressions alone. Twenty percent said they were going by body and facial cues together, and not a single one said they were looking only for gestures from the neck down.

Then, the researchers scrambled the photos, mixing faces and bodies together. The upset faces of players were randomly spliced onto the bodies of celebrating players, and vice versa.

When asked to judge the emotions, the subjects answered according to the body language. The facial expression did not seem to matter. If a losing face was spliced onto a celebrating body, the subjects tended to guess victory and jubilation. If they were looking at the face of an exuberant player placed on the body of an anguished player, the subjects guessed defeat and disappointment.

Although they were not aware of it, the subjects were clearly looking at body language, Dr. Aviezer said. Clenched fists, for example, suggested victory and celebration, while open or outstretched hands indicated a player’s disappointment.

In another experiment, the researchers looked at four other emotional “peaks.” For pain, they used the faces of men and women undergoing piercings. Grief was captured in images of mourners at a funeral. For joy, they used images of people on the reality television show “Extreme Makeover: Home Edition,” capturing their impassioned faces at the very moment they were shown their beautiful, brand new homes. And for pleasure, they went with a rather risqué option: images from an erotic Web site that showed faces at the height of orgasm.

Once again, the subjects could not correctly guess the emotions by looking at facial expressions alone. In fact, they were more likely to interpret “positive” faces as being “negative” more than the actual negative ones. When faces showing pleasure were spliced onto the body of someone in pain, for example, the subjects relied on body language and were often unaware that the facial expression was conveying the opposite emotion.

“There’s this point on ‘Extreme Makeover’ where people see their new house for the first time and the camera is on their face, so we have these wonderful photos of their expressions,” Dr. Aviezer said. “At that moment, they look like the most miserable people in the world. For a few seconds, it’s as if they are seeing their house burn down. They don’t look like you would expect.”

The researchers noted that they were not suggesting that facial expressions never indicate specific feelings – only that when the emotion is intense and at its peak, for those first few seconds, the expression is ambiguous. Dr. Aviezer said the facial musculature simply might not be suited for accurately conveying extremely intense feelings – in part because in the real world, so much of that is conveyed through situational context.

And this may not be limited to facial cues.

“Consider intense vocal expressions of grief versus joy or pleasure versus pain,” the researchers wrote in their paper. For example, imagine sitting in a coffee shop and hearing someone behind you shriek. Is it immediately obvious whether the emotion is a positive or negative one?

“When people are experiencing a very high level of excitation,” Dr. Aviezer said, “then we see this overlap in expressions.”

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DealBook: Live Q. & A. on Wall Street's Untouchables

On Tuesday, “Frontline” investigated why the leaders of Wall Street had escaped prosecution for their role in the country’s financial crisis.

Peter Eavis of DealBook is moderating a conversation beginning at 2 p.m. Eastern time with the show’s producer, Martin Smith. Watch the show above and submit your questions now.

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IHT Rendezvous: Reverberations After the Bolshoi Attack

When a hooded assailant flung acid in the face of Sergei Filin, the director of the Bolshoi Ballet, late on Thursday night in Moscow, the attack almost instantly made headlines worldwide.

Although doctors have now said that Mr. Filin will not lose his sight in both eyes, the extent of the damage to his vision and face is not yet known. The viciousness of the intention — blindness, disfigurement, pain — behind the attack has left the ballet world (and journalists) groping for explanations. Some have been quick to link the incident to the byzantine politics and history of infighting that has long characterized the Bolshoi theater.

The Bolshoi’s general director, Anatoly Iksanov, immediately said that he believed the attack was linked to the theater, and Mr. Filin, in an interview with the newspaper Komsomolskaya Pravda, published Tuesday, said “he believed he was attacked because of his work at the ballet company,” wrote Ellen Barry, who has been covering the events from Moscow for The New York Times.

Reports in European and American news media have almost all mentioned the simmering hostility between the director and the flamboyant principal dancer, Nikolai Tsiskaridze, who has made no secret of his belief that he should head the company, nor of his criticism of Mr. Filin’s artistic policy. Mr. Tsiskaridze is said to inspire fanatical devotion in his fans, who sent a petition to President Vladimir V. Putin in November demanding that their hero replace Mr. Filin as head of the ballet company. But commentators have stopped short of suggesting that the dancer himself might have had something to do with the attack.

“As ruthless as the ballet world might be, it’s hard to imagine Tsiskaridze committing such a crime,” wrote Ariane Bavelier in Le Figaro.

That ruthlessness has been repeatedly alluded to, with, naturally, Darren Aronofsky’s 2010 film, “Black Swan,” and its lurid portrayal of the ballet world, repeatedly invoked. “An acid attack on the artistic director of the Bolshoi ballet has shone the spotlight on the fierce “Black Swan”-like competition for starring roles at the famed Russian dance company,” wrote Lynn Berry and Nataliya Vasileva on the Huffington Post Web site.

Hearing about the persecution that preceded the physical attack on Mr. Filin in previous months — his car tires were slashed, his phones, email and Facebook page hacked, and he received numerous threatening phone calls — makes the fictional events of the film “Black Swan” and Natalie Portman’s psychotic ballerina seem rather less far-fetched.

Many have placed the attack on Mr. Filin in the context of a long history of internecine war at the Bolshoi, linked to the polarizing figure of Yuri Grigorivich, who headed the ballet company for three mostly Soviet-era decades, until his dismissal in 1995.

“Just turned 86, he retains almost godlike status for his supporters, who include many veteran Bolshoi coaches as well as some celebrated dance stars such as Tsiskaridze, who share a suspicion of modernizers,” wrote Ismene Brown on the Artsdesk web site.

Grigorovich supporters criticize what they see as an overly Westernized approach on the part of subsequent directors. Several commentators have suggested that the departure of Alexei Ratmansky, who is widely seen as having revitalized the company during his 2004-2008 tenure, was due at least in part to pressure from this group.

Although Mr. Ratmansky has always been tactful about his reasons for leaving the Bolshoi, his feelings were clear in a Facebook post after the attack: “Many of the illnesses of the Bolshoi are one snowball,” he wrote, “that disgusting claque which is friendly with artists, ticket speculators and scalpers, half-crazy fans who are ready to slit the throats of their idol’s competitors, cynical hackers, lies in the press and scandalous interviews of people working there.”

And the departure of Gennady Yanin, who resigned in 2011 after sexually explicit photographs resembling him were posted on the Internet, has also been described by Mr. Yanin’s supporters as the result of a crude smear campaign.

It was announced Tuesday that Galina Stepanenko, a former principal dancer and the first woman to hold a senior position at the Bolshoi, will run the company during Mr. Filin’s absence.

What is clear from the media coverage is that ballet has a political status in Russia that is very different from that in the west.

“Shocking as it might seem to western observers, politics in the Bolshoi and other Russian companies are often just as turbulent and murky as those in the outside world – and no less locked in a struggle between cold war-style conservatives and liberal modernisers than Russia itself,” Judith Mackrell wrote in The Guardian.

It’s not impossible to imagine that artistic directors in London or Paris or Berlin might be subject to threats or intimidation, as might be the case for any powerful head of a large organization. But it’s harder to envisage a culture in which ballet is as powerful a symbol of political prestige and national brand as government itself.

“Ballet in Russia is more politics than art,” wrote the New York-based impresario Sergei Danilian, who represents a number of major Russian ballet dancers, in an email message.

“Would that ballet ignited such passion here,” wrote a New York resident on Twitter.

Well, not really, but you know what she means.

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Apple slips, BlackBerry slides and Windows Phone stalls in December

Kantar Worldpanel’s December smartphone market share numbers are out. And they are as fascinating as ever. Kantar pegs the BlackBerry market share in America as 1.1% last month, down from 1.4% in November. Surprisingly, Windows Phone’s market share also ticked down to 2.6% in December from 2.7% in November. That might be a statistical artifact, but it is surprising not to see a substantial boost in Windows share considering the marketing support and new devices from AT&T (T).

[More from BGR: BlackBerry 10 OS walkthrough, BlackBerry Z10 pricing]

In Europe, Windows Phone is rapidly picking up steam. Its market share soared to 13.9% in Italy from 11.8% in November. In the UK, Windows Phone’s share moved to 5.9% from 5.1% in a month.The EU average share of Windows Phone bloomed to 5.4% from 4.7% between November and December.

[More from BGR: Verizon Q4 loss doubles to nearly $ 2 billion despite record subscriber adds]

At the same time, BlackBerry dipped to 4.0% from 4.4%. The stage is set for the spring battle between Windows Phone and BlackBerry camps.

Interestingly, Apple’s (AAPL) share in the UK slipped to 32.4% in December from 36.1% in November. The massive popularity of Samsung (005930) models in the British market was undoubtedly the main reason; Android’s share hit 54.4% in the UK.

This is the latest sign that Apple’s market share problems outside the U.S. market are not limited to emerging markets and Southern Europe. The UK has traditionally been the second most loyal market to the Apple brand, right after the United States. According to Kantar, Apple slipped 2.1 percentage points in America between November and December, ending up with 51.2% share of the smartphone market.

This article was originally published on BGR.com

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