Why Some Facebook Users Constantly Update Status

Scientists have found what compels people to constantly update their Facebook status. College students who posted more status updates than they normally did felt less lonely over the course of a week, even if no one “Liked” or commented on their posts, researchers found.

“We got the idea to conduct this study during a coffee-break sharing random stories about what friends had posted on Facebook,” psychology researcher Fenne große Deters, of the Universitat Berlin, told LiveScience in an email. “Wondering why posting status updates is so popular, we thought that it would be thrilling to study this new form of communication empirically.”

Deters and her colleague recruited about 100 undergraduates (all Facebook users) at the University of Arizona. All participants filled out initial surveys to measure their levels of loneliness, happiness and depression, and they gave the researchers access to their Facebook profiles by friending a dummy user created for the experiment.

The students were sent an analysis of their average weekly status updates (online wall-memos) and some of the participants were then told to post more statuses than usual over the next seven days. During that week, all completed a short online questionnaire at the end of each day about their mood and level of social connection.

Compared with the group of students who didn’t adjust their social media habits, those who went on a status-writing blitz felt less lonely over the week, the team found. Their happiness and depression levels went unchanged, “suggesting that the effect is specific to experienced loneliness,” the researchers wrote. And a drop in loneliness was linked to an increase in feeling more socially connected, which the researchers believe is the cause behind the positive effects of status updating. [6 Personal Secrets Your Facebook Profile Isn't Keeping]

Interestingly, the team found that loneliness levels did not depend on whether the students’ status updates garnered any comments or “Likes” from Facebook friends. One might assume that a lack of response could be considered a form of rejection, but the act of writing a status update itself might help people feel more connected, the researchers said. When crafting a clever status, Facebook users have a target audience in mind. Simply thinking about their friends (or at least their Facebook friends) can have a “social snacking” effect.

“Similar to a snack temporarily reducing hunger until the next meal, social snacking may help tolerate the lack of ‘real’ social interaction for a certain amount of time,” the researchers wrote in a paper published last month in the journal Social Psychological and Personality Science.

Now with over a billion users, Facebook has become the focus of an increasing number of studies trying to uncover the real-life social side effects that can accompany using the social media site.

For example, research presented last year at the meeting of the Society for Personality and Social Psychology (SPSP) showed how the site offers a dangerous medium for social comparison. People in that study with lots of Facebook friends had lower self-esteem, feeling worse about their place in life and their achievements if they’d just viewed their friends’ status updates, compared with people who hadn’t recently surfed the site. But for people with just a few Facebook friends, viewing status updates wasn’t a problem.

Another study, detailed in the Sept. 13 issue of the journal Nature, found such Facebook friends can influence real-life actions of one another. In that study, one “get out the vote” message sent to 61 million Facebook users on Election Day 2010 led to 340,000 people casting ballots when they otherwise would not have.

Follow LiveScience on Twitter @livescience. We’re also on Facebook & Google+.

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Bradley Cooper & Zoë Saldana Split Again: Report

Buzz

By Tim Nudd

01/03/2013 at 10:25 AM EST

Zoe Saldana and Bradley Cooper

Jeff Vespa/Getty

A year after they were first linked together, it looks like it could be the end of the road for Bradley Cooper and Zoë Saldana.

The on-again off-again actors, who publicly celebrated his film Silver Linings Playbook together in Los Angeles last month, spent New Year's apart, reports the New York Post.

While Cooper was in Europe, Saldana reportedly rang in 2013 with friends in Miami.

After a private dinner at Catch, she spent a couple of hours at the James Royal Palm hotel pool area.

"She was hanging out with Miami Heat stars Dwyane Wade and his girlfriend Gabrlelle Union, and Chris Bosh with wife Adrienne Bosh," a source at the hotel tells PEOPLE. "She looked happy and was dancing quite a bit. She was smiling all the time."

The Avatar actress, 34, split from her boyfriend of 11 years, Keith Britton, in November 2011.

Cooper, who was PEOPLE's Sexiest Man Alive that same year, has been getting lots of awards buzz for Silver Linings Playbook. The actor, who turns 38 on Saturday, is nominated for Golden Globe and Screen Actors Guild awards for the role.

When reached, his rep had no comment.

• With reporting by LINDA MARX

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Flu? Malaria? Disease forecasters look to the sky

NEW YORK (AP) — Only a 10 percent chance of showers today, but a 70 percent chance of flu next month.

That's the kind of forecasting health scientists are trying to move toward, as they increasingly include weather data in their attempts to predict disease outbreaks.

In one recent study, two scientists reported they could predict — more than seven weeks in advance — when flu season was going to peak in New York City. Theirs was just the latest in a growing wave of computer models that factor in rainfall, temperature or other weather conditions to forecast disease.

Health officials are excited by this kind of work and the idea that it could be used to fine-tune vaccination campaigns or other disease prevention efforts.

At the same time, experts note that outbreaks are influenced as much, or more, by human behavior and other factors as by the weather. Some argue weather-based outbreak predictions still have a long way to go. And when government health officials warned in early December that flu season seemed to be off to an early start, they said there was no evidence it was driven by the weather.

This disease-forecasting concept is not new: Scientists have been working on mathematical models to predict outbreaks for decades and have long factored in the weather. They have known, for example, that temperature and rainfall affect the breeding of mosquitoes that carry malaria, West Nile virus and other dangerous diseases.

Recent improvements in weather-tracking have helped, including satellite technology and more sophisticated computer data processing.

As a result, "in the last five years or so, there's been quite an improvement and acceleration" in weather-focused disease modeling, said Ira Longini, a University of Florida biostatistician who's worked on outbreak prediction projects.

Some models have been labeled successes.

In the United States, researchers at Johns Hopkins University and the University of New Mexico tried to predict outbreaks of hantavirus in the late 1990s. They used rain and snow data and other information to study patterns of plant growth that attract rodents. People catch the disease from the droppings of infected rodents.

"We predicted what would happen later that year," said Gregory Glass, a Johns Hopkins researcher who worked on the project.

More recently, in east Africa, satellites have been used to predict rainfall by measuring sea-surface temperatures and cloud density. That's been used to generate "risk maps" for Rift Valley fever — a virus that spreads from animals to people and in severe cases can cause blindness or death. Researchers have said the system in some cases has given two to six weeks advance warning.

Last year, other researchers using satellite data in east Africa said they found that a small change in average temperature was a warning sign cholera cases would double within four months.

"We are getting very close to developing a viable forecasting system" against cholera that can help health officials in African countries ramp up emergency vaccinations and other efforts, said a statement by one of the authors, Rita Reyburn of the International Vaccine Institute in Seoul, South Korea.

Some diseases are hard to forecast, such as West Nile virus. Last year, the U.S. suffered one of its worst years since the virus arrived in 1999. There were more than 2,600 serious illnesses and nearly 240 deaths.

Officials said the mild winter, early spring and very hot summer helped spur mosquito breeding and the spread of the virus. But the danger wasn't spread uniformly. In Texas, the Dallas area was particularly hard-hit, while other places, including some with similar weather patterns and the same type of mosquitoes, were not as affected.

"Why Dallas, and not areas with similar ecological conditions? We don't really know," said Roger Nasci of the Centers for Disease Control and Prevention. He is chief of the CDC branch that tracks insect-borne viruses.

Some think flu lends itself to outbreak forecasting — there's already a predictability to the annual winter flu season. But that's been tricky, too.

Seasonal flu reports come from doctors' offices, but those show the disease when it's already spreading. Some researchers have studied tweets on Twitter and searches on Google, but their work has offered a jump of only a week or two on traditional methods.

In the study of New York City flu cases published last month in the Proceedings of the National Academy of Sciences, the authors said they could forecast, by up to seven weeks, the peak of flu season.

They designed a model based on weather and flu data from past years, 2003-09. In part, their design was based on earlier studies that found flu virus spreads better when the air is dry and turns colder. They made calculations based on humidity readings and on Google Flu Trends, which tracks how many people are searching each day for information on flu-related topics (often because they're beginning to feel ill).

Using that model, they hope to try real-time predictions as early as next year, said Jeffrey Shaman of Columbia University, who led the work.

"It's certainly exciting," said Lyn Finelli, the CDC's flu surveillance chief. She said the CDC supports Shaman's work, but agency officials are eager to see follow-up studies showing the model can predict flu trends in places different from New York, like Miami.

Despite the optimism by some, Dr. Edward Ryan, a Harvard University professor of immunology and infectious diseases, is cautious about weather-based prediction models. "I'm not sure any of them are ready for prime time," he said.

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Wall Street dips as profits booked after rally

NEW YORK (Reuters) - Stocks edged lower on Thursday as investors locked in gains after a rally Wednesday, which was spurred by a deal by U.S. lawmakers to avert a "fiscal cliff" of austerity measures that had been due to kick in this year.

Losses were limited, however, by better-than-expected data that showed U.S. private-sector employers added 215,000 jobs in December. That was well above economists' expectations for a gain of 133,000 jobs, according to a Reuters survey.

"The report now sets the stage as we expect a strong non-farm payroll reading on Friday," said Andrew Wilkinson, chief economic strategist at Miller Tabak & Co in New York

The ADP report beat forecasts partly due to "a snapback from (superstorm) Sandy, although we prefer to stick to our line of thought that says the economy is gaining momentum rather than losing it regardless of the impact of fiscal talks in Washington," he said.

The key payrolls report is due on Friday. A Reuters survey forecasts non-farm payrolls rose to 150,000 last month, from 146,000 in November.

A separate report Thursday showed the number of Americans filing new claims for unemployment benefits rose last week, but the data was too distorted by year-end holidays to offer a clear read of labor market conditions.

The Dow Jones industrial average <.dji> was down 45.92 points, or 0.34 percent, at 13,366.63. The Standard & Poor's 500 Index <.spx> was down 3.62 points, or 0.25 percent, at 1,458.80. The Nasdaq Composite Index <.ixic> was down 8.15 points, or 0.26 percent, at 3,104.11.

Wall Street began the new year Wednesday with a rally and their best performance in more than a year, sparked by a last-minute deal in Washington to avert a fiscal cliff of automatic massive tax hikes and spending cuts that, in the worst-case scenario, would have hurt the nation's economic growth.

The minutes of the Federal Reserve's policy meeting last month will be released at 2:00 p.m. EST (1900 GMT). The minutes will give details on the discussions of the Federal Open Market Committee's December 11-12 meeting.

U.S. retailer Costco Wholesale Corp reported a better-than-expected 9 percent rise in December sales at stores open at least a year, mainly helped by an additional sales day in the reporting period. Costco shares rose 1.3 percent to $102.80.

Gap Inc will buy women's fashion boutique Intermix Inc for $130 million to enter the luxury clothes market, the Wall Street Journal reported. The stock rose 3 percent to $32.28.

Family Dollar Stores Inc reported a lower-than-expected quarterly profit as its emphasis on selling more everyday items like cigarettes and soft drinks put pressure on margins. The stock fell 12 percent to $56.47.

(Editing by Bernadette Baum)

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Myanmar says jets used against Kachin rebels

YANGON (Reuters) - Myanmar's military has used jets to attacks rebel fighters in northern Kachin state, the government said on Thursday, its first admission of an intensification of a conflict that has raised doubts about its reformist credentials.

Rebel sources have reported aerial bombings, shelling and even the use of chemical weapons since December 28 after the Kachin Independence Army (KIA) ignored an ultimatum to stop blocking an army supply route in the hilly, resource-rich state where more than 50,000 people have been displaced.

Official newspapers said that air support was used on December 30 to thwart KIA fighters who had occupied a hill and were attacking logistics units of the Tatmadaw, as Myanmar's military is known.

"The Tatmadaw troops cleared Point-771 hill and its surrounding areas where the KIA troops were attacking the Tatmadaw logistic troops," the New Light of Myanmar, a government mouthpiece, said. "The air cover was used in the attack."

U.N. Secretary-General Ban Ki-moon voiced concern on Wednesday over reports of helicopters and fighter jets being used in the state bordering China. The KIA said the attacks were intended to clear the path for an assault on its headquarters in Laisa.

Ban called on Myanmar's government to "desist from any action that could endanger the lives of civilians" and reiterated demands for humanitarian aid groups to be granted access, U.N. spokesman Martin Nesirky said in a statement.

President Thein Sein's quasi-civilian administration insists it wants a ceasefire and political dialogue. It says troops have acted only in self-defense and on Thursday denied having plans to seize the KIA's stronghold.

DOMINANT MILITARY

The escalation of fighting has raised doubts about the sincerity of the reformist ex-generals running the government and the extent of their power in a country the size of Britain and France plagued by decades of internal conflict.

Some analysts and diplomats say central government is either not fully committed to peace with the KIA or unable to assert control over the military, which still dominates politics and the economy despite formally ceding power in March 2011.

Colonel James Lum Dau, a Thai-based spokesman for the KIA's political wing, said Kachin officials on the ground had reported up to 300 people killed in air strikes.

"We are in a defensive position. Right now more people are suffering not only bombings, but shelling and spraying of chemical weapons with helicopter gunships and jets," he said. "Only god knows what to do. We are praying."

It is difficult for journalists to independently verify accounts from the two sides.

Fighting erupted in Kachin in June 2010, ending a 17-year truce, and has continued even as government negotiators have agreed ceasefires elsewhere with ethnic Shan, Chin, Mon and Karen militias after decades of fighting in border areas.

Mistrust runs deep between the military and the KIA, which was once backed by China, and multiple rounds of talks aimed at reaching a ceasefire have gone nowhere. Analysts say a history of bad blood and a battle for control of resources, including highly lucrative jade, could be stoking the unrest.

Zaw Htay, a senior official in Thein Sein's office, told Reuters no air strikes had taken place but K-8 trainer jets had provided cover fire to protect ground troops from rebel attacks. The military, he said, had no intention of seizing the KIA's headquarters.

"The president has said this and at the same time he has invited KIA leaders to come and talk with him in Naypyitaw, but they still haven't responded," Zaw Htay said.

(Additional reporting by Paul Carsten in Bangkok; Writing by Martin Petty; Editing by Alan Raybould)

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The Most and Least Influential Social Media Celebs

While he isn’t currently available for promotional work, businesses would have the most success on social media with President Barack Obama endorsing their goods and services, new research shows.

A study by social marketing platform SocialToaster revealed that Obama is considered the most influential celebrity on social media. Justin Bieber, Lady Gaga, Ashton Kutcher and Anderson Cooper followed the president on the rankings of social influencers.

On the flip side, the research found that former Republican presidential nominee Mitt Romney was the least influential celebrity on social media, finishing just below Madonna, Kanye West and Sean Hannity.

While celebrities might be influential on social media in some aspects, it’s those closest to us who make the largest impact when it comes to the important issues. Nearly all of the social media users surveyed agreed that a social media post from a close friend or family member was most likely to influence them on important subjects, with politicians and athletes the least likely to influence them.

“While it was no surprise that in this election year Barack Obama would be ranked the most influential person in social media, it was surprising to us that Justin Bieber and Lady Gaga would beat Madonna and Kanye West,” said Brian Razzaque, CEO of SocialToaster. “We were also surprised to see that friends had more pull than family when it came to influencing the sharing of social media content.”

Regardless of whom it comes from, there are some posts that will quickly result in an unfollowing, the study discovered. Nearly three-quarters of those surveyed said a racist post would cause them to immediately unfollow someone on social media. Other types of posts that result in a loss of followers include sexism, pornography, repetitive, overly personal posts and those that use poor grammar.

The researcher was based on surveys of 3,000 SocialToaster Super Fans, which consist of social media experts and professionals, many of whom work with some of the nation’s leading brands. The experts range from those who work in the entertainment industry who represent numerous television shows and movies to those who work in professional sports, including the Baltimore Ravens and the Detroit Pistons.

This story was provided by BusinessNewsDaily, a sister site to LiveScience. Follow Chad Brooks on Twitter @cbrooks76 or BusinessNewsDaily @BNDarticles. We’re also on Facebook & Google+.

Copyright 2012 LiveScience, a TechMediaNetwork company. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.
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Kate and William Spent New Year's Eve Apart

By Simon Perry

01/02/2013 at 10:30 AM EST

The Duke and Duchess of Cambridge kicked off 2013 apart from one other – with helicopter pilot William participating in an attempted rescue of a man who had been swept out to sea in the first minutes of the New Year.

William, 30, was part of an RAF search and rescue crew scrambled at around 12:30 a.m. Tuesday to help find a 41-year-old dog walker who had gotten lost in raging seas at Blackpool, Lancashire. Sadly, the RAF Sea King helicopter was unable to find the stricken man, and searches by coastguard crews were continuing into early Wednesday.

Kate, meanwhile, was believed to be ringing in the new year at home with her parents in Bucklebury, Berkshire, where she and William spent their Christmas Day.

At his RAF base in North Wales, William was on the first responders' shift from early New Year's Eve into the start of the New Year, PEOPLE was told. He was also to spend a second 24-hour shift on or near the base as part of a second back-up crew.

As for Kate's New Year's Eve, she was seen at a gas station stocking up on Mini Cheddars snacks, according to one eyewitness.

William is expected to spend much of the early part of the year "concentrating on his flying," a Palace source tells PEOPLE, and he and Kate are not expected at any royal engagements in the first few weeks of '13.

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Brain image study: Fructose may spur overeating

This is your brain on sugar — for real. Scientists have used imaging tests to show for the first time that fructose, a sugar that saturates the American diet, can trigger brain changes that may lead to overeating.

After drinking a fructose beverage, the brain doesn't register the feeling of being full as it does when simple glucose is consumed, researchers found.

It's a small study and does not prove that fructose or its relative, high-fructose corn syrup, can cause obesity, but experts say it adds evidence they may play a role. These sugars often are added to processed foods and beverages, and consumption has risen dramatically since the 1970s along with obesity. A third of U.S. children and teens and more than two-thirds of adults are obese or overweight.

All sugars are not equal — even though they contain the same amount of calories — because they are metabolized differently in the body. Table sugar is sucrose, which is half fructose, half glucose. High-fructose corn syrup is 55 percent fructose and 45 percent glucose. Some nutrition experts say this sweetener may pose special risks, but others and the industry reject that claim. And doctors say we eat too much sugar in all forms.

For the study, scientists used magnetic resonance imaging, or MRI, scans to track blood flow in the brain in 20 young, normal-weight people before and after they had drinks containing glucose or fructose in two sessions several weeks apart.

Scans showed that drinking glucose "turns off or suppresses the activity of areas of the brain that are critical for reward and desire for food," said one study leader, Yale University endocrinologist Dr. Robert Sherwin. With fructose, "we don't see those changes," he said. "As a result, the desire to eat continues — it isn't turned off."

What's convincing, said Dr. Jonathan Purnell, an endocrinologist at Oregon Health & Science University, is that the imaging results mirrored how hungry the people said they felt, as well as what earlier studies found in animals.

"It implies that fructose, at least with regards to promoting food intake and weight gain, is a bad actor compared to glucose," said Purnell. He wrote a commentary that appears with the federally funded study in Wednesday's Journal of the American Medical Association.

Researchers now are testing obese people to see if they react the same way to fructose and glucose as the normal-weight people in this study did.

What to do? Cook more at home and limit processed foods containing fructose and high-fructose corn syrup, Purnell suggested. "Try to avoid the sugar-sweetened beverages. It doesn't mean you can't ever have them," but control their size and how often they are consumed, he said.

A second study in the journal suggests that only severe obesity carries a high death risk — and that a few extra pounds might even provide a survival advantage. However, independent experts say the methods are too flawed to make those claims.

The study comes from a federal researcher who drew controversy in 2005 with a report that found thin and normal-weight people had a slightly higher risk of death than those who were overweight. Many experts criticized that work, saying the researcher — Katherine Flegal of the Centers for Disease Control and Prevention — painted a misleading picture by including smokers and people with health problems ranging from cancer to heart disease. Those people tend to weigh less and therefore make pudgy people look healthy by comparison.

Flegal's new analysis bolsters her original one, by assessing nearly 100 other studies covering almost 2.9 million people around the world. She again concludes that very obese people had the highest risk of death but that overweight people had a 6 percent lower mortality rate than thinner people. She also concludes that mildly obese people had a death risk similar to that of normal-weight people.

Critics again have focused on her methods. This time, she included people too thin to fit what some consider to be normal weight, which could have taken in people emaciated by cancer or other diseases, as well as smokers with elevated risks of heart disease and cancer.

"Some portion of those thin people are actually sick, and sick people tend to die sooner," said Donald Berry, a biostatistician at the University of Texas MD Anderson Cancer Center in Houston.

The problems created by the study's inclusion of smokers and people with pre-existing illness "cannot be ignored," said Susan Gapstur, vice president of epidemiology for the American Cancer Society.

A third critic, Dr. Walter Willett of the Harvard School of Public Health, was blunter: "This is an even greater pile of rubbish" than the 2005 study, he said. Willett and others have done research since the 2005 study that found higher death risks from being overweight or obese.

Flegal defended her work. She noted that she used standard categories for weight classes. She said statistical adjustments were made for smokers, who were included to give a more real-world sample. She also said study participants were not in hospitals or hospices, making it unlikely that large numbers of sick people skewed the results.

"We still have to learn about obesity, including how best to measure it," Flegal's boss, CDC Director Dr. Thomas Frieden, said in a written statement. "However, it's clear that being obese is not healthy - it increases the risk of diabetes, heart disease, cancer, and many other health problems. Small, sustainable increases in physical activity and improvements in nutrition can lead to significant health improvements."

___

Online:

Obesity info: http://www.cdc.gov/obesity/data/trends.html

___

Marilynn Marchione can be followed at http://twitter.com/MMarchioneAP

Mike Stobbe can be followed at http://twitter.com/MikeStobbe

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Wall Street surges in wake of fiscal pact

NEW YORK (Reuters) - Stocks surged on the first trading day of 2013 after lawmakers agreed a deal to avoid massive tax hikes and spending cuts that had threatened to hurt economic growth.

The gains come after stocks ended 2012 with their strongest day in more than a month, which put the S&P 500 up 13.4 percent for the year, after a flat performance in 2011.

Late on Tuesday, the House of Representatives voted for a bill that will raise taxes on wealthy individuals and families and preserve certain benefits.

The vote averted immediate austerity measures, like tax hikes for almost all U.S. households, although it didn't resolve other political showdowns on the budget due in coming months. Spending cuts of $109 billion in military and domestic programs were only delayed for two months.

"Many investors are feeling confident heading into 2013 following a year of strong equity market returns, and the recently signed deal," said Jonathan Golub, strategist at UBS in New York.

"Unfortunately, our sense is that the most important structural issues will continue to be pushed off into the future, leaving significant uncertainty about the long-term direction of the economy and corporate profits."

The Dow Jones industrial average <.dji> was up 255.72 points, or 1.95 percent, at 13,359.86. The Standard & Poor's 500 Index <.spx> was up 28.75 points, or 2.02 percent, at 1,454.94. The Nasdaq Composite Index <.ixic> was up 75.18 points, or 2.49 percent, at 3,094.70.

Bank shares rose following news that U.S. regulators are close to securing another multibillion-dollar settlement with the largest banks to resolve allegations that they unlawfully cut corners when foreclosing on delinquent borrowers.

Bank of America Corp rose 4 percent to $12.06 and Wells Fargo shares added 2.4 percent to $35. JPMorgan Chase & Co shares rose 3 percent to $44.96.

Boosting the technology sector, Apple shares rose on a report that the most valuable technology company has started testing a new iPhone and the next version of its iOS software.The stock was up 3.9 percent at $552.86.

Shares of Zipcar Inc jumped 48 percent to $12.21 after Avis Budget Group Inc said it would buy Zipcar for about $500 million in cash to compete with larger rivals Hertz and Enterprise Holdings Inc.

On the macroeconomic front, U.S. manufacturing expanded slightly in December, rebounding from an unexpected contraction the prior month, an industry report showed on Wednesday.

A separate report showed U.S. construction spending fell in November for the first time in eight months, as an extended bout of weakness in the business sector outweighed modest growth in outlays on residential projects. The equity market's reaction to both reports was muted.

On the last day of trading in 2012, the Dow Jones industrial average <.dji> gained 166.03 points, or 1.28 percent, to close at 13,104.14. The Standard & Poor's 500 Index <.spx> gained 23.76 points, or 1.69 percent, to finish at 1,426.19. The Nasdaq Composite Index <.ixic> gained 59.20 points, or 2.00 percent, to close at 3,019.51.

In 2012, the Dow advanced 7.3 percent, while the Nasdaq climbed 15.9 percent.

(Editing by Bernadette Baum)

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U.N. raises Syria death toll to 60,000

AMMAN/GENEVA (Reuters) - More than 60,000 people have died in the Syrian uprising and civil war, the United Nations said on Wednesday, dramatically raising the death toll in a struggle that shows no sign of ending.

Dozens were killed in a Damascus suburb when a government air strike turned a petrol station into an inferno, incinerating drivers who had rushed there for a rare chance to fill their tanks, activists said.

"I counted at least 30 bodies. They were either burnt or dismembered," said Abu Saeed, an activist who arrived at the area an hour after the raid occurred at 1:00 PM (1100 GMT) in Muleiha, a suburb on the eastern edge of the capital.

U.N. Human Rights Commissioner Navi Pillay said in Geneva that researchers cross-referencing seven sources over five months of analysis had listed 59,648 people killed in Syria between March 15, 2011 and November 30, 2012.

"The number of casualties is much higher than we expected and is truly shocking," she said. "Given that there has been no let-up in the conflict since the end of November, we can assume that more than 60,000 people have been killed by the beginning of 2013."

There was no breakdown by ethnicity or information about whether the dead were rebels, soldiers or civilians. There was also no estimate of an upper limit of the possible toll.

Previously, the Syrian Observatory for Human Rights monitoring group, had put the toll at around 45,000 confirmed dead, but said the real number was likely to be much higher.

FATAL RUSH FOR PETROL

Mulaiha, the target of Wednesday's air strike, is a residential and industrial area in the eastern Ghouta region of Damascus that also houses a Syrian air defense base.

The activists said rockets were fired from the base at the petrol station and a nearby residential area after the air raid.

"Until the raid, Muleiha was quiet. We have been without petrol for four days and people from the town and the countryside rushed to the station when a state consignment came in," Abu Fouad, another activist at the scene, said by phone.

President Bashar al-Assad's forces control the center of the capital, while rebels and their sympathizers hold a ring of southern and eastern suburbs that are often hit by air strikes.

Video footage taken by activists showed the body of a man in a helmet still perched on a motorcycle amid flames engulfing the scene. Another man was shown carrying a dismembered body.

The video could not be verified. The government bars access to the Damascus area to most international media.

The pro-opposition Syrian Observatory for Human Rights said a separate air strike killed 12 members of a family, most of them children, in Moadamiyeh, a southwestern area near the center of Damascus where rebels have fought for a foothold.

The Syrian conflict began in March 2011 with peaceful protests against four decades of Assad family rule but turned into an armed revolt after months of government repression.

Insurgents trying to topple Assad see his air power as their main threat. They hold swathes of eastern and northern provinces, as well as some outlying parts of Damascus, but have been unable to protect their territory from relentless attack by helicopters and jets.

In the north, rebels, some from Islamist units, attacked the Afis military airport near Taftanaz air base, firing machineguns and mortars at helicopters on the ground to try and make a dent in Assad's air might, the Observatory said.

The al Qaeda-linked al-Nusra Front, Ahrar al-Sham Brigade and other units in northwestern Idlib province were attacking the base, which is near the main north-south highway linking Damascus to Aleppo, Syria's biggest city, the Observatory said.

In recent months, rebel units have besieged military bases, especially along the highway, Syria's main artery.

The Observatory's director, Rami Abdelrahman, said the attack was the latest of several attempts to capture the base. A satellite image of the airport shows more than 40 helicopter landing pads, a runway and aircraft hangars.

Syrian state media gave no immediate account of the Damascus air strikes or the fighting in the north.

"FOR GOD'S EYES"

Both sides have been accused of carrying out atrocities in the 21-month-old conflict, but the United Nations says the government and its allies have been more culpable.

In the latest evidence of atrocities, Internet video posted by Syrian rebels shows armed men, apparently fighters loyal to Assad, stabbing two men to death and stoning them with concrete blocks in a summary execution lasting several minutes.

Reuters could not verify the provenance of the footage or the identity of the perpetrators and their victims. The video was posted on Tuesday but it was not clear where or when it was filmed. However it does clearly show a summary execution and torture, apparently being carried out by government supporters.

At one point, one of the perpetrators says: "For God's eyes and your Lord, O Bashar," an Arabic incantation suggesting actions being carried out in the leader's name.

The video was posted on YouTube by the media office of the Damascus-based rebel First Brigade, which said it had been taken from a captured member of the shabbiha pro-government militia.

The perpetrators show off for the camera, smiling for close-up shots, slicing at the victims' backs, then stabbing them and bashing them with large slabs of masonry.

In Damascus, Assad's forces fired artillery and mortars at the eastern districts of Douma, Harasta, Irbin and Zamlaka, where rebels are active, activists living there said.

Syria's civil war is the longest and deadliest conflict to emerge from uprisings that began sweeping the Arab world in 2011 and has developed a significant sectarian element.

Rebels, mostly from the Sunni Muslim majority, confront Assad's army and security forces, dominated by his Shi'ite-derived Alawite sect, which, along with some other minorities, fears revenge if he falls.

U.N.-led diplomatic peace efforts have stumbled. Western and many Sunni Arab states demand Assad's immediate removal, an idea resisted by Russia, China and Syria's Shi'ite ally Iran.

The rebels say they will not negotiate unless Assad, who has vowed to fight to the death, leaves power.

More than 110 people, including at least 31 of Assad's soldiers and militiamen, were killed in Syria on the first day of 2013, according to the Observatory, which tracks the conflict from Britain using a network of contacts inside the country.

(Additional reporting by Oliver Holmes in Beirut; Writing by Peter Graff; Editing by Alistair Lyon)

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