Hundreds hurt when 10-ton meteorite explodes over Russia

CHELYABINSK, Russia -- More than 500 people were injured when a meteorite shot across the sky and exploded over central Russia on Friday, sending fireballs crashing to Earth, shattering windows and damaging buildings.

People heading to work in Chelyabinsk heard what sounded like an explosion, saw a bright light and then felt a shockwave according to a Reuters correspondent in the industrial city 950 miles east of Moscow.

A fireball blazed across the horizon, leaving a long white trail in its wake which could be seen as far as 125 miles away in Yekaterinburg. Car alarms went off, windows shattered and mobile phone networks were interrupted.

"I was driving to work, it was quite dark, but it suddenly became as bright as if it was day," said Viktor Prokofiev, 36, a resident of Yekaterinburg in the Urals Mountains.

"I felt like I was blinded by headlights," he said.

No fatalities were reported but President Vladimir Putin, who was due to host Finance Ministry officials from the Group of 20 nations in Moscow, and Prime Minister Dmitry Medvedev were informed.

A local ministry official said such incidents were extremely rare and Friday's events might have been linked to an asteroid the size of an Olympic swimming pool due to pass Earth at a distance of 17,100 miles but this was not confirmed.

Russia's space agency Roscosmos said the meteorite was travelling at a speed of 19 miles per second and that such events were hard to predict. The Interior Ministry said the meteorite explosion had caused a sonic boom.

Russia's Emergencies Ministry said 514 people had sought medical help, mainly for light injuries caused by flying glass, and that 112 of those were kept in hospital. Search groups were set up to look for the remains of the meteorite.

"There have never been any cases of meteorites breaking up at such a low level over Russia before," said Yuri Burenko, head of the Chelyabinsk branch of the Emergencies Ministry.

WINDOWS BREAK, FRAMES BUCKLE

Windows were shattered on Chelyabinsk's central Lenin Street and some of the frames of shop fronts buckled.

A loud noise, resembling an explosion, rang out at around 12:20 a.m. ET. The shockwave could be felt in apartment buildings in the industrial city's center.

"I was standing at a bus stop, seeing off my girlfriend," said Andrei, a local resident who did not give his second name. "Then there was a flash and I saw a trail of smoke across the sky and felt a shockwave that smashed windows."

A wall was damaged at the Chelyabinsk Zinc Plant but a spokeswoman said there was no environmental threat.

Although such events are rare, a meteorite is thought to have devastated an area of more than 1,250 miles in Siberia in 1908, smashing windows as far as 125 miles from the point of impact.

The Emergencies Ministry described Friday's events as a "meteor shower in the form of fireballs" and said background radiation levels were normal. It urged residents not to panic.

Chelyabinsk city authorities urged people to stay indoors unless they needed to pick up their children from schools and kindergartens. They said what sounded like a blast had been heard at an altitude of 32,800 feet.

The U.S. space agency NASA has said an asteroid known as 2012 DA14, about 46 meters in diameter, would have an encounter with Earth closer than any asteroid since scientists began routinely monitoring them about 15 years ago.

Television, weather and communications satellites fly about 500 miles higher. The moon is 14 times farther away.

Reuters

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Big hedge funds fueled fourth-quarter dive in Apple shares

BOSTON (Reuters) - Some of the biggest hedge funds that helped make Apple Inc a stock market darling lost faith and dumped their stakes in the fourth quarter, fueling the massive drop in the iPhone maker's share price.

Noted stock pickers including Leon Cooperman, Eric Mindich and Thomas Steyer unloaded billions of dollars of Apple shares between September 30 and December 31, according to disclosure documents filed on Thursday.

Shares of Apple rose to an all-time high of $705.07 on September 21 but ended 2012 down more than 24 percent from that peak as investors worried about increasing competition and declining profit margins.

The shares also may have dropped because their price rose too much, too fast.

"The stock just went up so much in early 2012 and then was coming back to earth," said Justin Walters, co-founder of Wall Street research firm Bespoke Investment Group. "Three months from now, we'll be seeing a lot of the people who sold starting to pick it up again."

The fourth-quarter sellers avoided even deeper losses. Apple's shares have lost 12 percent so far this year. The shares lost 42 cents, or 0.1 percent, to close at $466.59 on the Nasdaq on Thursday.

Cooperman's Omega Advisors fund dumped its entire stake of more than 266,000 shares during the fourth quarter, according to its required quarterly disclosure form filed with the Securities and Exchange Commission.

Mindich, named the youngest partner ever at Goldman Sachs before starting his Eton Park Capital Management fund in 2004, got out of Apple entirely in the fourth quarter after making big sales in the third quarter as well. Eton owned 600,000 shares at the beginning of 2012.

Farallon Capital, the hedge fund founded by Steyer, sold 137,000 shares. Steyer, who once worked on the Goldman Sachs risk arbitrage desk under Robert Rubin, stepped down at the end of the year from the firm, which he founded in 1986. Rubin served as U.S. Treasury secretary from 1995 to 1999.

Jana Partners, an activist fund run by Barry Rosenstein, also unloaded its entire Apple stake of more than 143,000 shares. Other notable sellers included Third Point LLC, which had owned 710,000 shares, Viking Global Investors, which dumped 1.1 million shares and Lone Pine Capital, which sold over 800,000 shares.

A much smaller line up of funds bought shares amid the stock's crash. David Tepper's Appaloosa Management nearly doubled its stake during the quarter to about 913,000 shares. George Soros more than doubled his stake to about 184,000 shares. And David Einhorn, who last week sued Apple in a bid for higher dividends, added 20 percent to his holdings to end the quarter with 1.3 million shares.

PROFITABLE TRADES

Despite the plunge in Apple's stock price, most of the managers likely exited their positions with substantial profits because they bought years earlier.

Rosenstein and Cooperman, for example, both started gathering their stakes in the middle of 2010, when Apple shares traded below $300.

At the time, the company's iPhone 4 was beset by alleged faulty reception, a problem that became known as "antennagate." Apple's then-chief executive, the late Steve Jobs, famously dismissed the issue, saying "we don't think we have a problem." But Apple offered customers a free bumper case that was supposed to minimize any issues.

Customers did not seem to care, snapping up millions of iPhones and sending Apple's share price up almost 50 percent over the next year.

Apple came under further scrutiny last week from Greenlight's Einhorn. Einhorn filed a lawsuit to block changes in Apple's policy for issuing preferred stock. Instead, Apple should issue a new class of preferred stock to share more of its $137 billion cash hoard with shareholders, Einhorn said.

Apple Chief Executive Tim Cook dismissed the moves as a "silly sideshow" on Tuesday.

SOME TRIMMED

Not all well-known hedge fund fans of Apple cut ties in the fourth quarter. Some only trimmed their holdings.

Philippe Laffont, who worked under famed hedge fund manager Julian Robertson before striking out on his own at Coatue Management, sold about 18 percent of his Apple shares. Coatue ended the year with a still sizable 643,000 shares.

Chase Coleman, another manager who worked for Robertson, reduced the Apple stake at his Tiger Global Management fund by 19 percent to just over 1 million shares.

Robertson's own Tiger Management LLC fund trimmed its Apple stake by 28 percent to about 42,000 shares.

Large hedge funds are required to disclose their U.S. stock holdings within 45 days after the end of each quarter.

But the filings may not give a complete picture of each fund's moves, since only U.S.-listed shares and options must be revealed. Bonds, foreign shares and derivatives are not included, and short positions, or bets that a stock will fall in price, are not listed.

(Reporting by Aaron Pressman; Additional reporting by Katya Wachtel, Svea Herbst, Sam Forgione and Jennifer Ablan in New York; Editing by Steve Orlofsky and David Gregorio)

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Pistorius prosecutors pursue premeditated murder

PRETORIA, South Africa (AP) — Oscar Pistorius held his head in his hands and wept openly in court Friday as prosecutors said they would pursue a charge of premeditated murder against the Paralympic superstar.

Pistorius was formally charged at Pretoria Magistrates Court with one count of murder for the slaying of his girlfriend, Reeva Steenkamp, a model and budding reality TV show contestant. The 30-year-old was shot multiple times and died at Pistorius' upmarket home early Thursday morning.

Prosecutor Gerrie Nel said Friday in court it was premeditated murder, indicating the prosecution would file that more serious charge, upgraded from murder.

The double-amputee athlete's arrest and murder charge had already left South Africa stunned after Steenkamp's death on Valentine's Day at Pistorius' house in a gated community in an eastern suburb of South Africa's capital, Pretoria.

Following the hearing, Pistorius' family and his London management company issued a statement calling into question the criminal charge the 26-year-old athlete faces.

"The alleged murder is disputed in the strongest terms," the statement read. The statement did not elaborate.

The statement also said Pistorius wanted to "send his deepest sympathies to the family of Reeva."

"He would also like to express his thanks through us today for all the messages of support he has received — but as stated our thoughts and prayers today should be for Reeva and her family — regardless of the circumstances of this terrible, terrible tragedy," the statement read.

Those who knew Pistorius, including a former girlfriend, also weighed in on social media.

Trish Taylor, mother of Pistorius' ex-girlfriend Samantha Taylor, wrote on Facebook: "I'm so glad Sammy is safe and out of the clutches of that man."

But another ex-girlfriend, Jenna Edkins, defended Pistorius in messages Friday on Twitter.

"All I am saying is let him speak, let his side be heard without jumping to conclusions," Edkins wrote. She offered "love and support" to the Pistorius family and wrote: "I have dated Oscar on and off for 5 YEARS, NOT ONCE has he EVER lifted a finger to me or made me fear for my life."

Prosecutors said Friday that they would argue the history-making Olympic athlete — the first amputee to run at the games — had planned Steenkamp's killing. It sent South Africans reeling further as their national hero, and a global role model in overcoming adversity, was set to face accusations that he intentionally gunned down his girlfriend.

South Africa's tabloid Citizen newspaper had the headline "Blade gunner?" Friday morning, playing on double-amputee athlete Pistorius' well-known nickname of "Blade Runner" because of his carbon fiber running blades.

Pistorius stood with his face in his hands as he broke down in tears on his first appearance at the Pretoria Magistrates' Court. Chief Magistrate Desmond Nasir delayed Pistorius' bail hearing until next Tuesday and Wednesday and ruled that Pistorius would be held at a police station in Pretoria until then. Police have said they oppose the granting of bail.

A solemn Pistorius entered the court wearing a gray suit and blue tie and initially appeared composed. When he broke down in tears, his brother, Carl, reached out a hand and placed it on his shoulder. Pistorius' father, Henke, was in the court and later reached over to comfort him as well.

More than 100 people packed Friday morning into Courtroom C at the Pretoria Magistrates Court, including dozens of photographers and videographers. Nasir ruled that no recordings of court proceedings would be allowed in the case.

Police said Friday investigators also conducted an autopsy on Steenkamp's body. Lt. Col. Katlego Mogale said the results of the autopsy would not be published.

Pistorius earlier left a police station, his jacket completely covering his head as he got into a police vehicle. He was holding what appeared to be a white handkerchief in one hand. He was led by officers to a police van outside the Boschkop Police Station in eastern Pretoria, where he had been questioned on Thursday and had spent the night in custody.

A policeman was also seen carrying a handgun in a plastic forensic bag outside the Boschkop station. It was believed to be the weapon used to shoot and kill Steenkamp.

Police said the victim was shot four times at Pistorius' villa in a gated community. Officers found a 9 mm pistol inside the home.

Pistorius made history at the London Olympics last year when he became the first double-amputee track athlete to compete at any games. He didn't win a medal but did make the semifinals of the 400 meters and the final of the 4X400 relay, propelling the world's best-known Paralympian to the level of an international track star and one of the world's best-known sportsmen.

But police hinted at a troubled lifestyle away from public scrutiny for the runner Thursday when they said there had previously been domestic incidents at Pistorius' home.

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AP Sports Writer Imray reported from Johannesburg. Associated Press writer Michelle Faul in Johannesburg contributed to this report.

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Jon Gambrell can be reached at www.twitter.com/jongambrellAP and Gerald Imray can be reached at www.twitter.com/geraldimrayap .

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Study: Fish in drug-tainted water suffer reaction

BOSTON (AP) — What happens to fish that swim in waters tainted by traces of drugs that people take? When it's an anti-anxiety drug, they become hyper, anti-social and aggressive, a study found. They even get the munchies.

It may sound funny, but it could threaten the fish population and upset the delicate dynamics of the marine environment, scientists say.

The findings, published online Thursday in the journal Science, add to the mounting evidence that minuscule amounts of medicines in rivers and streams can alter the biology and behavior of fish and other marine animals.

"I think people are starting to understand that pharmaceuticals are environmental contaminants," said Dana Kolpin, a researcher for the U.S. Geological Survey who is familiar with the study.

Calling their results alarming, the Swedish researchers who did the study suspect the little drugged fish could become easier targets for bigger fish because they are more likely to venture alone into unfamiliar places.

"We know that in a predator-prey relation, increased boldness and activity combined with decreased sociality ... means you're going to be somebody's lunch quite soon," said Gregory Moller, a toxicologist at the University of Idaho and Washington State University. "It removes the natural balance."

Researchers around the world have been taking a close look at the effects of pharmaceuticals in extremely low concentrations, measured in parts per billion. Such drugs have turned up in waterways in Europe, the U.S. and elsewhere over the past decade.

They come mostly from humans and farm animals; the drugs pass through their bodies in unmetabolized form. These drug traces are then piped to water treatment plants, which are not designed to remove them from the cleaned water that flows back into streams and rivers.

The Associated Press first reported in 2008 that the drinking water of at least 51 million Americans carries low concentrations of many common drugs. The findings were based on questionnaires sent to water utilities, which reported the presence of antibiotics, sedatives, sex hormones and other drugs.

The news reports led to congressional hearings and legislation, more water testing and more public disclosure. To this day, though, there are no mandatory U.S. limits on pharmaceuticals in waterways.

The research team at Sweden's Umea University used minute concentrations of 2 parts per billion of the anti-anxiety drug oxazepam, similar to concentrations found in real waters. The drug belongs to a widely used class of medicines known as benzodiazepines that includes Valium and Librium.

The team put young wild European perch into an aquarium, exposed them to these highly diluted drugs and then carefully measured feeding, schooling, movement and hiding behavior. They found that drug-exposed fish moved more, fed more aggressively, hid less and tended to school less than unexposed fish. On average, the drugged fish were more than twice as active as the others, researcher Micael Jonsson said. The effects were more pronounced at higher drug concentrations.

"Our first thought is, this is like a person diagnosed with ADHD," said Jonsson, referring to attention deficit-hyperactivity disorder. "They become asocial and more active than they should be."

Tomas Brodin, another member of the research team, called the drug's environmental impact a global problem. "We find these concentrations or close to them all over the world, and it's quite possible or even probable that these behavioral effects are taking place as we speak," he said Thursday in Boston at the annual meeting of the American Association for the Advancement of Science.

Most previous research on trace drugs and marine life has focused on biological changes, such as male fish that take on female characteristics. However, a 2009 study found that tiny concentrations of antidepressants made fathead minnows more vulnerable to predators.

It is not clear exactly how long-term drug exposure, beyond the seven days in this study, would affect real fish in real rivers and streams. The Swedish researchers argue that the drug-induced changes could jeopardize populations of this sport and commercial fish, which lives in both fresh and brackish water.

Water toxins specialist Anne McElroy of Stony Brook University in New York agreed: "These lower chronic exposures that may alter things like animals' mating behavior or its ability to catch food or its ability to avoid being eaten — over time, that could really affect a population."

Another possibility, the researchers said, is that more aggressive feeding by the perch on zooplankton could reduce the numbers of these tiny creatures. Since zooplankton feed on algae, a drop in their numbers could allow algae to grow unchecked. That, in turn, could choke other marine life.

The Swedish team said it is highly unlikely people would be harmed by eating such drug-exposed fish. Jonsson said a person would have to eat 4 tons of perch to consume the equivalent of a single pill.

Researchers said more work is needed to develop better ways of removing drugs from water at treatment plants. They also said unused drugs should be brought to take-back programs where they exist, instead of being flushed down the toilet. And they called on pharmaceutical companies to work on "greener" drugs that degrade more easily.

Sandoz, one of three companies approved to sell oxazepam in the U.S., "shares society's desire to protect the environment and takes steps to minimize the environmental impact of its products over their life cycle," spokeswoman Julie Masow said in an emailed statement. She provided no details.

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Online:

Overview of the drug: http://www.nlm.nih.gov/medlineplus/druginfo/meds/a682050.html

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Kim Kardashian makes another bid to end marriage

LOS ANGELES (AP) — Kim Kardashian's divorce case is returning to court Friday with her attorney urging a speedy end to her marriage to NBA player Kris Humphries.

Lawyers for the pregnant reality star and the Brooklyn Nets power forward disagree over a timetable for a trial to end the marriage, which Humphries wants annulled.

Kardashian is asking a judge to order a trial as soon as possible. Humphries wants the case to remain on hold until the basketball season ends.

Setting a trial date may be complicated by a filing Thursday by one of Humphries' attorneys to leave the case, citing "irreconcilable differences" with Humphries. The attorney, Marshall Waller, had stated in recent court filings that he was still seeking evidence from several companies that produce Kardashian's reality shows to try to prove their fraud claims.

Kardashian's attorney Laura Wasser has repeatedly sought a trial date so that the marriage can be ended and denies that the couple's televised marriage was based on false pretenses.

The model is due to give birth in July to a child conceived with her boyfriend Kanye West. Each side accuses the other of trying to use Kardashian's pregnancy for a legal advantage.

"It appears from (Kardashisan's) moving papers that what is really going on here is that an 'urgency' in the form of an apparently unplanned pregnancy ... is perceived by (Kardashian) as an opportunity to gain a litigation advantage by trying to force this court to prematurely set this matter for trial," Waller wrote in a court filing earlier this month.

"(Humphries) to his great discredit thinks that because (Kardashian) is now pregnant he can exert some leverage over (her) knowing that she wants to be divorced," Wasser wrote.

Kardashian filed for divorce on Dec. 31, 2011 after 72 days of marriage. The pair was married in a star-studded ceremony that was televised by E! Entertainment Television.

The case has already drawn in West, the producers of "Keeping Up With the Kardashians," and Kardashian family matriarch Kris Jenner.

Superior Court Judge Stephen Moloney will determine Friday how the case will proceed. He has previously said the case should be ready for trial early this year.

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Anthony McCartney can be reached at http://twitter.com/mccartneyAP

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Push for online sales taxes pick up steam in Congress

U.S. states could collect millions of dollars in online sales taxes, with members of both parties in Congress sponsoring legislation Thursday that would resolve states' decades-long struggle to tax businesses beyond their borders.

"Small businesses and states alike are suffering from the inability to collect due -- not new -- taxes from purchases made online," said Rep. Steve Womack, R-Ark., adding the legislation is a "bipartisan, bicameral, common-sense solution that promotes states' rights and levels the playing field for our Main Street businesses."

Legislation on the Amazon tax, named for the colossal Internet retailer, has languished for years.

In 1992 the Supreme Court decided the patchwork of state tax laws made it too difficult for online retailers to collect and remit sales taxes. So states can tax Internet only sales made by companies with a physical presence in the states. That means online retailers such as Amazon.com Inc. collect sales tax in some states and not in others.

The bills introduced on Thursday reconcile differences in legislation that the House of Representatives and Senate considered last year. The nearly identical details in the bills and strong bipartisan support mean the final bill could be sent to President Barack Obama this year.

Members of Congress recently assured state lawmakers they would pass a law in 2013.

In the last decade, Internet sales have gone from 1.6 percent of all U.S. retail sales to more than 5 percent, according to Commerce Department data, a proportion that will likely grow as shoppers make more purchases on handheld devices. In the third quarter of 2012,  "e-commerce" sales were $57 billion, the department said.

Large Internet retailers are worried the tax could drive up the cost of doing business. They would also have to create new systems and software to collect the surcharges, adding to their costs. Amazon said in July it prefers having the tax issue resolved at the federal level.

When the 2007-09 recession caused states' revenues to collapse, Republican and Democratic governors backed the tax as a financial solution that would not require federal aid.

A leader in the Republican party, Virginia Gov. Bob McDonnell went so far as to figure online tax revenue into his recent plan for overhauling the state's transportation funding.

"The revenue states are losing out on is legally owed, but because of a pre-Internet Supreme Court ruling, states aren't able to collect it," Sen. Deb Peters, R-S.D., said in a statement.

States and cities say they can recoup billions of dollars with the tax. Fitch Ratings estimates put the states' loss at $11 billion.

Some states are considering their own legislation. Florida is debating a bill that advocates say could bring the state more than $400 million.

Small retailers, meanwhile, have said the sales tax will will allow them to compete with massive online retailers.

"While store owners collect and remit state and local sales taxes their digital competitors are off the hook -- and benefiting because of it," said David French, the National Retail Federation's senior vice president for government relations, in a statement.

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'Blade Runner' Olympian Oscar Pistorius charged with murder

Double-amputee Olympic athlete Oscar Pistorius was arrested on Thursday, after a woman was shot dead in his home in Pretoria, South Africa. (Feb. 14)

JOHANNESBURG -- South African "Blade Runner" Oscar Pistorius, a double amputee who became one of the biggest names in world athletics, was charged on Thursday with shooting dead his girlfriend at his home in Pretoria.

Police said they had opened a murder case after a 30-year-old woman was found dead at the track star's house after an incident in the upmarket Silverlakes gated complex on the outskirts of the capital.

"At this stage he is on his way to a district surgeon for medical examination," police brigadier Denise Beukes told reporters outside the heavily guarded residential complex.

Pistorius and his girlfriend, Reeva Steenkamp, had been the only people in the house at the time of the shooting, Beukes, said, and witnesses had been interviewed about the incident, which happened in the early hours of the morning.

"We are talking about neighbors and people that heard things earlier in the evening and when the shooting took place," she said. Earlier, police said a 9mm pistol had been found at the scene.

"When a person has been accused of a crime like murder they look at things like testing under the figure nails, taking a blood alcohol sample and all kinds of other test that are done. They are standard medical tests," Beukes said.

Pistorius is due to appear in a Pretoria court after 1200 GMT.

Before the murder charge was announced, Johannesburg's Talk Radio 702 said the 26-year-old may have mistaken Steenkamp for a burglar.

South Africa has some of the world's highest rates of violent crime, and many home owners have weapons to defend themselves against intruders, although Pistorius' complex is surrounded by a three meter high wall and electric fence.

In 2004, Springbok rugby player Rudi Visagie shot dead his 19-year-old daughter after he mistakenly thought she was a robber trying to steal his car in the middle of the night.

VALENTINE'S DAY

Steenkamp, a model and regular on the South African party circuit, was reported to have been dating Pistorius for a year, and there had been little to suggest their relationship was in trouble.

In the social pages of last weekend's Sunday Independent she described him as having "impeccable" taste.

"His gifts are always thoughtful," she was quoted as saying.

Some of her last Twitter postings indicated she was looking forward to celebrating Valentine's Day on Thursday with him.

"What do you have up your sleeve for your love tomorrow???" she posted.

However, Beukes said the police were aware of previous incidents at the house of a "domestic nature", and recent media interviews with Pistorius revealed he kept an assortment of weapons in his home.

"Cricket and baseball bats lay behind the door, a pistol by his bed and a machine gun by a window," Britain's Daily Mail wrote in a profile published last year.

He was arrested in 2009 for assault after slamming a door on a woman and spent a night in police custody. Family and friends said it was just an accident and the charges were later dropped.

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Apple challenges loss of iPhone trademark in Brazil

RIO DE JANEIRO (Reuters) - Apple Inc, which lost the rights to its iPhone trademark in Brazil on Wednesday, is challenging the ruling by Brazil's copyright regulator to prevent local firm Gradiente Eletronica SA from using the "iphone" brand name.

The regulator, Inpi, ruled on Wednesday that the rights to the trademark belong to Gradiente, prompting California-based Apple to request that the decision be reviewed in Latin America's largest market.

Consumer electronics maker Gradiente had filed its request to use the "iphone" brand in 2000, seven years before Apple launched its smartphone, but received approval to use the trademark only in 2008.

Now, in order to keep its trademark rights, Gradiente will need to prove to the regulator in the next 60 days that it made use of the trademark between January 2008 and January 2013, Inpi said late on Wednesday. Brands in Brazil must be developed within 5 years of gaining approval.

IGB Eletronica SA, a company formed after the restructuring of Gradiente, launched its "iphone" line of smartphones last December.

Officials from Apple and Gradiente didn't immediately respond to requests for comment.

An Inpi spokesman said Apple could still take the case to court or negotiate an out-of-court settlement with Gradiente.

(Reporting by Juliana Schincariol; Writing by Caroline Stauffer; Editing by Bernadette Baum)

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Olympian Pistorius charged with murder

PRETORIA, South Africa (AP) — Paralympic superstar Oscar Pistorius was charged Thursday with the murder of his girlfriend who was shot inside his home in South Africa, a stunning development in the life of a national hero known as the Blade Runner for his high-tech artificial legs.

Reeva Steenkamp, a model who spoke out on Twitter against rape and abuse of women, was shot four times in the predawn hours in the house, in a gated community in the capital, Pretoria, police said.

Hours later after undergoing police questioning, Pistorius left a police station accompanied by officers. He looked down as photographers snapped pictures, the hood on his gray workout jacket pulled up, covering most of his face. His court hearing was originally scheduled for Thursday afternoon but has been postponed until Friday to give forensic investigators time to carry out their work, said Medupe Simasiku, a spokesman for the prosecution.

South Africans were shocked at the killing. But while Pistorius captured the nation's attention with his Olympic dreams, police said there was a history of problems involving him.

There have "previously been incidents at the home of Mr. Oscar Pistorius," said police spokeswoman Brigadier Denise Beukes. Police in South Africa do not name suspects in crimes until they have appeared in court but Beukes said that the 26-year-old Pistorius was at his home at the time of the death of Steenkamp and "there is no other suspect involved."

"Yes, there are witnesses and there have also been interviews this morning," Beukes told reporters outside the gated complex where Pistorius lived. "We are talking about neighbors and people that heard things that happened earlier in the evening and when the shooting took place."

Pistorius' father, Henke, declined to comment when contacted by The Associated Press, only saying "we all pray for guidance and strength for Oscar and the lady's parents."

Neither Pistorius' agent Peet van Zyl nor coach Ampie Louw could be reached while Pistorius' own cellphone went straight to an answerphone service.

Pistorius' former coach, Andrea Giannini, said he hopes it was "just a tragic accident." Gianni said he believed that Pistorius had been dating Steenkamp for "a few months."

"No matter how bad the situation was, Oscar always stayed calm and positive," Giannini told the AP in Italy. "Whenever he was tired or nervous he was still extremely nice to people. I never saw him violent."

Pistorius owned guns and tweeted a photo of himself at a shooting range in November 2011, bragging about his score.

"Had a 96% headshot over 300m from 50shots! Bam!" he tweeted.

Police said that earlier reports that Steenkamp may have been mistaken for a burglar by Pistorius did not come from the police. Several local media outlets had initially reported that the shooting may have been accidental.

Beukes said there had been previous incidents and "allegations of a domestic nature" at the home of the Olympic star and double-amputee runner, who is one of South Africa's and the world's most famous sportsmen and made history at the London Games last year by being the first double-amputee runner to compete at the Olympics.

"I'm not going to elaborate on it but there have been incidents (at Pistorius' home)," Beukes said.

Capacity Relations, a talent management firm, earlier named model Steenkamp as the victim of the shooting. Police spokeswoman Lt. Col. Katlego Mogale told the AP that officers received a call around 3 a.m. after the shooting.

A 9 mm pistol was recovered and a murder case opened against Pistorius.

Pistorius enjoyed target shooting with his pistol and an online advertisement featuring him for Nike read: "I am a bullet in the chamber." An article in January 2012 in The New York Times Magazine described him talking about how he pulled a pistol to search his home when his alarm went off the night before an interview. At Pistorius' suggestion, he and the journalist went to a nearby target range where they fired at targets with a 9 mm pistol. At one point, Pistorius told the writer: "If you practiced, I think you could be pretty deadly."

Asked how often he went target shooting, Pistorius replied: "Just sometimes when I can't sleep."

On Thursday, Mogale said when police arrived at Pistorius' house they found paramedics trying to revive a 30-year-old woman, who had been shot four times. Mogale, who was speaking to the AP from the scene, said the woman died at the house.

Police have still not released the name of the woman, but the publicist for Steenkamp confirmed in a statement that the model was dead.

"We can confirm that Reeva Steenkamp has passed away," Steenkamp's publicist Sarit Tomlinson said. "We are in communication with people on the scene, please wait for official statements, as there is too much speculation at this moment in time. We will provide further information as soon as we are able to provide accurate information as to what transpired.

"Our thoughts and prayers go to the Steenkamp family, who have asked to have their privacy respected during this difficult time, everyone is simply devastated. She was the kindest, sweetest human being; an angel on earth and will be sorely missed."

Tomlinson said Steenkamp, known simply as Reeva, was one of FHM's (formerly For Him Magazine) 100 Sexiest Women in the World for two years running, appeared in countless international and national advertisements and was one of the celebrity contestants on Tropika Island of Treasure, filmed in Jamaica.

On Twitter, she tweeted messages urging women to stand up against rape alongside her excitement about Valentine's Day. "What do you have up your sleeve for your love tomorrow?" she tweeted. "It should be a day of love for everyone."

Mogale and Beukes said the victim's family had not yet identified the body.

Pistorius made history in London last year when he became the first double-amputee track athlete to compete in the Olympic Games, propelling him to the status of an athletics superstar.

Having had both his legs amputated below the knee before his first birthday because of a congenital condition, he campaigned for years to be allowed to compete against able-bodied athletes. Having initially been banned because of his carbon fiber blades — which critics said gave him an unfair advantage — he was cleared by sport's highest court in 2008 and allowed to run at the top events.

He competed in the 400 meters and on South Africa's 4x400 relay team at the London Games, making history after having his selection confirmed on South Africa's team at the very last minute. He also retained his Paralympic title in the 400 meters in London.

South Africa's Sports Confederation and Olympic committee released a statement on Thursday saying they had been "inundated" with requests for comment but were not in a position to give out any details of the shooting.

"SASCOC, like the rest of the public, knows no more than what is in the public domain, which is there has been an alleged fatal shooting on the basis of a mistaken identity and an apparent assumption of a burglary," the South African Olympic committee said. "The organization is in no position to comment on the incident other than to say our deepest sympathy and condolences have been expressed to the families of all concerned."

The International Paralympic Committee also said it wouldn't comment in detail apart from offering its condolences to the victim's family.

"This is a police matter, with a formal investigation currently underway," the IPC said. "Therefore it would be inappropriate for the IPC to comment on this incident until the official police process has concluded. The IPC would like to offer its deepest sympathy and condolences to all families involved in this case."

South Africa has some of the world's highest murder rates, with nearly 50 people killed each day in the nation of 50 million. It also has high rates of rape, other assaults, robbery and carjackings.

U.N. statistics show South Africa has the second highest rate of shooting deaths in the world, second only to Colombia.

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Imray reported from Cape Town, South Africa. Associated Press writer Michelle Faul contributed to this report from Johannesburg.

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Morning-after pill use up to 1 in 9 younger women

NEW YORK (AP) — About 1 in 9 younger women have used the morning-after pill after sex, according to the first government report to focus on emergency contraception since its approval 15 years ago.

The results come from a survey of females ages 15 to 44. Eleven percent of those who'd had sex reported using a morning-after pill. That's up from 4 percent in 2002, only a few years after the pills went on the market and adults still needed a prescription.

The increased popularity is probably because it is easier to get now and because of media coverage of controversial efforts to lift the age limit for over-the-counter sales, experts said. A prescription is still required for those younger than 17 so it is still sold from behind pharmacy counters.

In the study, half the women who used the pills said they did it because they'd had unprotected sex. Most of the rest cited a broken condom or worries that the birth control method they used had failed.

White women and more educated women use it the most, the research showed. That's not surprising, said James Trussell, a Princeton University researcher who's studied the subject.

"I don't think you can go to college in the United States and not know about emergency contraception," said Trussell, who has promoted its use and started a hot line.

One Pennsylvania college even has a vending machine dispensing the pills.

The morning-after pill is basically a high-dose version of birth control pills. It prevents ovulation and needs to be taken within a few days after sex. The morning-after pill is different from the so-called abortion pill, which is designed to terminate a pregnancy.

At least five versions of the morning-after pills are sold in the United States. They cost around $35 to $60 a dose at a pharmacy, depending on the brand.

Since it is sold over-the-counter, insurers generally only pay for it with a doctor's prescription. The new Affordable Care Act promises to cover morning-after pills, meaning no co-pays, but again only with a prescription.

The results of the study were released Thursday by the Centers for Disease Control and Prevention. It's based on in-person interviews of more than 12,000 women in 2006 through 2010. It was the agency's first in-depth report on that issue, said Kimberly Daniels, the study's lead author.

The study also found:

—Among different age groups, women in their early 20s were more likely to have taken a morning-after pill. About 1 in 4 did.

—About 1 in 5 never-married women had taken a morning-after pill, compared to just 1 in 20 married women.

—Of the women who used the pill, 59 percent said they had done it only once, 24 percent said twice, and 17 percent said three or more times.

A woman who uses emergency contraception multiple times "needs to be thinking about a more regular form" of birth control, noted Lawrence Finer, director of domestic research for the Guttmacher Institute, a nonprofit group that does research on reproductive health.

Also on Thursday, the CDC released a report on overall contraception use. Among its many findings, 99 percent of women who've had sex used some sort of birth control. That includes 82 percent who used birth control pills and 93 percent whose partner had used a condom.

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Online:

CDC report: http://www.cdc.gov/nchs/

Emergency contraception info: http://ec.princeton.edu/index.html

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