Well: Life, Interrupted: Brotherly Love

Life, Interrupted

Suleika Jaouad writes about her experiences as a young adult with cancer.

There are a lot of things about having cancer in your 20s that feel absurd. One of those instances was when I found myself calling my brother Adam on Skype while he was studying abroad in Argentina to tell him that I had just been diagnosed with leukemia and that — no pressure — he was my only hope for a cure.

Today, my brother and I share almost identical DNA, the result of a successful bone marrow transplant I had last April using his healthy stem cells. But Adam and I couldn’t be more different. Like a lot of siblings, we got along swimmingly at one moment and were in each other’s hair the next. My younger brother by two years, he said I was a bossy older sister. I, of course, thought I knew best for my little brother and wanted him to see the world how I did. My brother is quieter, more reflective. I’m a chronic social butterfly who is probably a bit too impulsive and self-serious. I dreamed of dancing in the New York City Ballet, and he imagined himself playing in the N.B.A. While the sounds of the rapper Mos Def blared from Adam’s room growing up, I practiced for concerto competitions. Friends joked that one of us had to be adopted. We even look different, some people say. But really, we’re just siblings like any other.

When I was diagnosed with cancer at age 22, I learned just how much cancer affects families when it affects individuals. My doctors informed me that I had a high-risk form of leukemia and that a bone marrow transplant was my only shot at a cure. ‘Did I have any siblings?’ the doctors asked immediately. That would be my best chance to find a bone marrow match. Suddenly, everyone in our family was leaning on the little brother. He was in his last semester of college, and while his friends were applying to jobs and partying the final weeks of the school year away, he was soon shuttling from upstate New York to New York City for appointments with the transplant doctors.

I’d heard of organ transplants before, but what was a bone marrow transplant? The extent of my knowledge about bone marrow came from French cuisine: the fancy dish occasionally served with a side of toasted baguette.

Jokes aside, I learned that cancer patients become quick studies in the human body and how cancer treatment works. The thought of going through a bone marrow transplant, which in my case called for a life-threatening dose of chemotherapy followed by a total replacement of my body’s bone marrow, was scary enough. But then I learned that finding a donor can be the scariest part of all.

It turns out that not all transplants are created equal. Without a match, the path to a cure becomes much less certain, in many cases even impossible. This is particularly true for minorities and people from mixed ethnic backgrounds, groups that are severely underrepresented in bone marrow registries. As a first generation American, the child of a Swiss mother and Tunisian father, I suddenly found myself in a scary place. My doctors worried that a global, harried search for a bone marrow match would delay critical treatment for my fast-moving leukemia.

That meant that my younger brother was my best hope — but my doctors were careful to measure hope with reality. Siblings are the best chance for a match, but a match only happens about 25 percent of the time.

To our relief, results showed that my brother was a perfect match: a 10-out-of-10 on the donor scale. It was only then that it struck me how lucky I had been. Doctors never said it this way, but without a match, my chances of living through the next year were low. I have met many people since who, after dozens of efforts to encourage potential bone marrow donors to sign up, still have not found a match. Adding your name to the bone marrow registry is quick, easy and painless — you can sign up at marrow.org — and it just takes a swab of a Q-tip to get your DNA. For cancer patients around the world, it could mean a cure.

The bone marrow transplant procedure itself can be dangerous, but it is swift, which makes it feel strangely anti-climactic. On “Day Zero,” my brother’s stem cells dripped into my veins from a hanging I.V. bag, and it was all over in minutes. Doctors tell me that the hardest part of the transplant is recovering from it. I’ve found that to be true, and I’ve also recognized that the same is true for Adam. As I slowly grow stronger, my little brother has assumed a caretaker role in my life. I carry his blood cells — the ones keeping me alive — and he is carrying the responsibility, and often fear and anxiety, of the loving onlooker. He tells me I’m still a bossy older sister. But our relationship is now changed forever. I have to look to him for support and guidance more than I ever have. He’ll always be my little brother, but he’s growing up fast.


Suleika Jaouad (pronounced su-LAKE-uh ja-WAD) is a 24-year-old writer who lives in New York City. Her column, “Life, Interrupted,” chronicling her experiences as a young adult with cancer, appears regularly on Well. Follow @suleikajaouad on Twitter.

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US, EU and Japan ground Dreamliners

Federal officials say they are temporarily grounding Boeing's 787 Dreamliners until the risk of possible battery fires is addressed. (Jan. 16)









With its new plane ordered to stay on the ground, Boeing Co. confronts a full-fledged crisis as it struggles to regain the confidence of passengers and the airline customers who stood by the 787 Dreamliner during years of cost overruns and delivery delays.

A second major incident involving "a potential battery fire risk'' prompted the Federal Aviation Administration on Wednesday to temporarily ground all 787s operated by U.S. carriers until it is determined that the lithium-ion batteries on board are safe.






The order affects United Airlines, which is the first U.S. customer. The FAA gave no indication how soon the plane could resume flying.

On Thursday, the European Aviation Safety Agency followed suit, grounding all Dreamliners in Europe.

Japanese airlines grounded their 787s Wednesday after an emergency landing and five days after the FAA and U.S. Transportation Secretary Ray LaHood declared that the flying public is safe on Dreamliners. When it offered those assurances Friday, however, the FAA also announced a comprehensive review of the 787's design, manufacture and assembly.

Ethiopian Airlines grounded its four 787s Thursday for "precautionary inspection."

The grounding represents a significant setback for Chicago-based Boeing, which is marketing the fuel-efficient, mainly carbon-composite jetliner as a vision of the future of commercial passenger aviation. The development of the plane was marred by long production and delivery delays, but it is selling well and has customers around the world.

"We stand behind its overall integrity. We will be taking every necessary step in the coming days to assure our customers and the traveling public of the 787's safety and to return the airplanes to service," Jim McNerney, Boeing's chairman and chief executive, said in a statement. He said Boeing is working with the FAA to find answers as quickly as possible.

Chicago-based United Airlines has six 787s, but it has been flying only one on flights between O'Hare International Airport and Houston. The airline said Wednesday night that it will accommodate customers on other planes. The domestic 787 flights were to end in late March, when United's first 787s were to begin serving international routes. 

United said it "will work closely with the FAA and Boeing on the technical review as we work toward restoring 787 service."

Foreign carriers are not affected by the FAA order, but LOT Polish Airlines canceled its inaugural flight celebration at O'Hare on Wednesday night, even before the flight landed from Warsaw.

"We just think it would be inappropriate to go ahead with the activities," said Frank Joost, regional sales director of the Americas for LOT. He described the FAA grounding of 787 flights as a "surprise."

LOT also canceled the Dreamliner's return flight to Warsaw. Passengers hoping to depart on the 9:55 p.m. flight said they were disappointed. Many were rebooked on Lufthansa through Munich.

Suzy Zaborek, 27, of Chicago was at Chicago O'Hare on Wednesday night waiting for her father to arrive from Poland aboard the 787. He came home early specifically to ride on the inaugural flight.

Zaborek had not been following the Dreamliner woes in recent weeks and the dramatic groundings on Wednesday.

"I'm glad I didn't know because I wouldn't have let him get on on of those," she said.

The FAA decision to ground all U.S.-registered 787s was the direct result of an in-flight incident involving a battery earlier in the day in Japan, FAA officials said. It followed another 787 battery fire that occurred Jan. 7 on the ground in Boston.

Both failures resulted in the release of flammable materials, heat damage, smoke and the potential for fire in the electrical compartments, the FAA said.

"Before further flight, operators of U.S.-registered Boeing 787 aircraft must demonstrate to the FAA that the batteries are safe," the regulatory agency said. The statement said the FAA will work with Boeing and airlines "to develop a corrective action plan to allow the U.S. 787 fleet to resume operations as quickly and safely as possible."

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Obama unveils biggest gun-control push in decades

At the White House earlier today President Obama unveiled a set of gun control measures intended to prevent and reduce violence in the wake of the massacre at Sandy Hook Elementary School in Newtown, CT. (Posted: January 16, 2013).









WASHINGTON—





President Barack Obama proposed a new assault weapons ban and mandatory background checks for all gun buyers on Wednesday as he tried to channel national outrage over the Newtown school massacre into the biggest U.S. gun-control push in decades.

Rolling out a wide-ranging plan for executive and legislative action to curb gun violence, Obama set up a fierce clash with the powerful U.S. gun lobby and its supporters in Congress, who will resist what they see as an encroachment on constitutionally protected gun rights.






Obama presented his agenda at a White House event in front of an audience that included relatives of some of the 20 first-graders who were killed along with six adults by a gunman on December 14 at Sandy Hook Elementary School in Newtown, Connecticut.

"We can't put this off any longer," Obama said, vowing to use "whatever weight this office holds" to make his proposals reality. "Congress must act soon."

Until now, Obama had done little to rein in America's gun culture during his first four years in office. But just days before his second inauguration, he appears determined to champion gun control in his next term with a concerted drive for tighter laws and other steps aimed at preventing new tragedies like the one at Newtown.

The proposals stem from a month-long review led by Vice President Joe Biden, who on orders from Obama met with advocates on both sides, including representatives from the weapons and entertainment industries.

Obama's plan calls on Congress to renew a prohibition on assault weapons sales that expired in 2004, a requirement for criminal background checks on all gun purchases, including closing a loophole for gun show sales, and a new federal gun trafficking law - long sought by big-city mayors to keep out-of-state guns off their streets.

He also announced 23 steps he intends to take immediately without congressional approval. These include improvements in the existing system for background checks, lifting the ban on federal research into gun violence, putting more counselors and "resource officers" in schools and better access to mental health services.

ASSAULT WEAPONS BATTLE

The most politically contentious piece of the package is Obama's call for a renewed ban on military-style assault weapons, a move that Republicans who control the House of Representatives are expected to oppose.

The Newtown gunman, 20-year-old Adam Lanza, used a Bushmaster AR-15 type assault rifle to shoot his victims, many of them 6- and 7-year-olds, before killing himself.

Underscoring the tough political fight ahead, the National Rifle Association, launched a scathing advertising campaign against Obama's gun control effort and deployed its representatives in force on Capitol Hill.

The NRA, which says it has about 4 million members, took aim at Obama in a stinging TV and Internet spot, accusing him of being "just another elitist hypocrite" for accepting Secret Service protection for his two daughters but turning down the lobby group's proposal to put armed guards in all schools.

As he announced the new gun measures, Obama was flanked on the stage by children from around the country chosen from among those who sent letters to him about gun violence and school safety.

"We should learn from what happened at Sandy Hook. I feel really bad," a boy wrote in a portion that Obama read from the podium.

With gun ownership rights enshrined in the U.S. Constitution, gun restrictions have long been a divisive - and risky - issue in American politics.

But polls show that public sentiment shifted in favor of increased gun-control measures after the Newtown shooting, and Obama hopes to take advantage while there is a mood for action in Washington.

However, the White House is mindful that the clock is ticking. The usual pattern after U.S. shooting tragedies is that memories of the events soon fade, making it hard to sustain a push for gun policy changes.

Obama acknowledged the political challenges but made clear that he is prepared to take on the NRA, despite its widespread support among Republicans and significant backing among Democrats.

He warned that opponents of his effort would try to "gin up fear" and urged lawmakers to think more about the safety of schoolchildren than trying to "get an 'A' grade from the gun lobby that supports their campaign."

Obama's plan appears to tread cautiously on the question of whether violent movies and video games contribute to the gun violence, which would open up issues of freedom of expression.

A senior administration official said, however, that Obama would be asking for $10 million for the U.S. Centers for Disease Control and Prevention to study the root causes of gun violence, including any relationship to video games and media images.

Seeking to jump-start his plan, Obama also nominated Todd Jones to head the Bureau of Alcohol, Tobacco and Firearms, quietly abandoning Andrew Traver, whose nomination for the job has long been stalled. Jones is currently the acting director of the law enforcement agency.

(Additional reporting by Jeff Mason, Steve Holland, Roberta Rampton, Thomas Ferraro; Editing by Alistair Bell and Paul Simao)



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Facebook search to generate revenue, no rival to Google: analysts






(Reuters) – Facebook Inc’s new search tool has strong potential to generate revenue for the social networking company, though it is unlikely to challenge Google Inc as the world’s dominant search engine, Wall Street analysts said on Wednesday.


Facebook’s “graph search” tool, rolled out on Tuesday, lets its more than 1 billion users trawl their network of friends to find everything from restaurants to movie recommendations and is the company’s biggest foray into online search.






Graph search contains some category suggestions that can be easily monetized, BofA Merrill Lynch analysts said in a note.


“It should be easy to incorporate commercial search results via Facebook’s partnership with Bing,” they added.


Facebook currently has a partnership with Microsoft Corp, whose Bing search engine provides search results for external websites. Microsoft also integrates certain Facebook results into its Bing search results.


BofA Merrill Lynch analysts estimated Facebook could add $ 500 million in annual revenue if it can generate just one paid click per user per year, and raised its price target on the stock by $ 4 to $ 35.


Facebook’s shares were flat at $ 30.10 in early trading on Wednesday. They have jumped about 50 percent since November to Tuesday’s close after months of weakness following its bungled Nasdaq listing in May.


However, analysts at J.P. Morgan Securities said the lack of a timeline for the possible launch of graph search on mobile devices may weigh on the tool’s prospects.


The success of the graph search, which will rely heavily on local information, depends on Facebook launching a mobile product, the analysts said. Half of all searches on mobile devices seek local information, according to Google.


Graph search also lacks the depth of review content of Yelp Inc, the analysts added.


Pivotal Research Group analyst Brian Wieser said monetization potential would be largely determined by Facebook’s ability to generate a significant portion of search query share volumes and he expects that quantity to be relatively low.


“Consumers are likely to continue prioritizing other sources, i.e. Google. Advertisers would consequently only use search if they can, or are perceived to, satisfy their goals efficiently with Facebook,” Wieser said.


NO GOOGLE KILLER


Analysts mostly agreed that Facebook’s search tool was unlikely to challenge Google’s dominance in web search at least in the near term.


“As of now, we do not see Graph Search as a threat to Google Web search. Looking forward, Facebook Graph searches could be competitive with certain categories of Google searches, such as Places and Maps,” BofA Merrill said.


Internet search, social networking tools and e-commerce are among the biggest weapons that companies such as Facebook, Google and Amazon.com Inc have in their battle for supremacy. A successful combination of the three could win the day for them.


Google has been trying to combine social networking and search for more than a year by integrating Google+ into its search engine.


“Overall, Graph Search offers users a unique view to information not available on Google, but does not replace Google. We view the relationship between Facebook Graph Search and Google as both competitive and complementary,” Piper Jaffray & Co analysts said.


The brokerage said users looking to buy a cellphone, for example, could search for friends’ reviews on Facebook and expert reviews on Google.


(Reporting by Sayantani Ghosh in Bangalore; Editing by Sriraj Kalluvila)


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Cotillard named Hasty Pudding Woman of the Year






CAMBRIDGE, Mass. (AP) — Academy Award-winning actress Marion Cotillard (koh-tee-YAR’) has been named the 2013 Harvard University Hasty Pudding Theatricals Woman of the Year.


The French actress, who won the 2007 best actress Oscar for her role in “La Vie En Rose,” will be honored with a parade and roast, and given her ceremonial pudding pot, at Harvard on Jan. 31.






The 37-year-old Cotillard has appeared more recently in “Inception,” ”Contagion” and “The Dark Knight Rises.”


Claire Danes was the woman of the year last year.


The man of the year will be announced at a later date and honored on Feb. 8.


Hasty Pudding Theatricals is the nation’s oldest undergraduate drama troupe. The awards are presented annually to performers who have made a lasting and impressive contribution to entertainment.


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Facebook adding search feature

Chicago Tribune social media editor Scott Kleinberg discusses the new search feature that Facebook revealed today. (Posted on: Jan. 15, 2013)









Facebook Inc. CEO Mark Zuckerberg unveiled on Tuesday a feature to help its users search for people and places within the social network, in the company's first major product launch since its May initial public offering.

Speaking to reporters at its Menlo Park, Calif. headquarters, Zuckerberg revealed "graph search," which allows users to sort through only content that has been shared with them -- addressing potential privacy concerns.






Available as a beta or early version to hundreds of thousands of users now, the new feature -- dubbed "graph search" because Facebook refers to its growing content, data and membership as the "social graph" -- will initially let users browse mainly photographs, people, places and members' interests, he added.

Zuckerberg promised users will be able to tailor their searches, such as by specifying music and restaurants that their friends like, or their favorite dentist. The reverse is also possible, such as discovering friends who have an interest in a particular topic.

Facebook may explore ways to earn revenue off of the service in the future, he added.

"You need to be able to ask the query, like, who are my friends in San Francisco," Zuckerberg said. "Graph search is a really big product. It's going to take years and years to index the whole map of the graph and everything we have out there."

"We'll start rolling it out very slowly. We're looking forward to getting it into more people's hands over coming weeks and months."

Critics have long deemed the social network's current search capabilities inadequate. Zuckerberg stressed Facebook was not getting into Internet searches, Google Inc's specialty.

But the news drove shares in Yelp Inc, which focuses on pooling customer reviews of restaurants and other popular services, about 7.1 percent lower. Wedbush Securities analyst Michael Pachter argued that recommendations from trusted friends were more valuable than from strangers on the Web.

"The initial focus is on getting users more engaged, so this is making Facebook more useful and sticky," Pachter said. "I don't see a revenue model initially, but think ultimately, search makes user activity even more relevant to advertisers, and allows greater focus."

MAKING MONEY

The world's largest online social network, with more than one billion users, Facebook is moving to regain Wall Street's confidence in the wake of a rocky IPO and concerns about its long-term money-making prospects.

Central to its efforts is devising new ways to make money from users who are migrating to mobile devices. Zuckerberg said the company is working on that front.

Speculation approached fever pitch over the past week about what Facebook planned to reveal in its highest-profile news briefing since its market debut. Guesses had ranged from a long-rumored smartphone to a full Web-search product.

That anticipation, as well as expectations of strong fourth-quarter financial results, helped boost Facebook's stock. Its shares are up more than 15 percent since the start of the year.

On Tuesday, its stock slid 2 percent at $30.30, giving up some of its recent gains.

"The search function on Facebook was basic and as such, a wasted opportunity given Facebook's imperative to strengthen advertising revenues," said Ovum Research analyst Eden Zoller.

Zuckerberg said he could foresee a business in search over time, but analysts advised caution. Facebook has come under fire numerous times for unclear privacy guidelines.

"Facebook graph search will no doubt leverage member data to provide advertisers with more targeted, personalized advertising opportunities going forward. But Facebook needs to tread very carefully here and be mindful of user privacy," Zoller said.

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Apple supplier sees big Q4 boost, likely a good sign for iPhone 5 demand






Shares of Apple (AAPL) have been hit hard over the last few days. Investors continue to worry about the company’s profit margins, demand for its popular line of smartphones and tablets, and its future endeavors. With upcoming competition from Research in Motion (RIMM) and Microsoft (MSFT), and an ongoing battle with Google’s (GOOG) Android operating system, analysts fear that Apple’s mobile dominance may be a thing of the past. While we won’t officially know anything until the company reports its holiday earnings on January 23rd, a small German company has painted a calming picture for Apple shareholders.


[More from BGR: HTC One SV review]






Dialog Semiconductor announced last week that it expects to report a significant increase in sales for its December quarter. The company noted that the increase was due to “a stronger than anticipated end of year, underpinned by a strong late surge in demand for smartphone and tablet products.” Dialog Semiconductor now expects to report revenues of $ 268 million, an increase from between $ 215 million and $ 235 million.


[More from BGR: Extensive BlackBerry Z10 demo video posted by German website [video]]


The important thing to note is that, as of this past fall, Apple is Dialog’s largest customer and accounts for 60% of its total revenue.


Logic dictates that solid demand for Apple’s iPhone and iPad during the holidays helped boost Dialog’s performance. This could also mean that the iPhone-maker will report not only a strong December quarter, but a better-than-expected March quarter as well.


It looks like all this talk about customers losing interest in Apple may indeed be premature.


This article was originally published on BGR.com


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Netflix to carry more Time Warner shows






(Reuters) – Netflix Inc will carry more shows from Time Warner Inc, intensifying efforts by the video streaming company to attract more subscribers and beat back competition.


Netflix signed licensing deals with Warner Bros Television (WBTVG) and Turner Broadcasting System Inc for previous seasons of shows from Cartoon Network, Warner Bros Animation and Adult Swim for U.S. subscribers.






Shows such as Cartoon Network’s “Adventure Time”, “Ben 10″ and “Johnny Bravo”, and WBTVG’s “Childrens Hospital” will be available from March 30.


Adult Swim shows “Robot Chicken”, “Aqua Teen Hunger Force”, and Sony Pictures Television‘s “The Boondocks” will also be available on Netflix.


The first two seasons of Warner Horizon Television-produced TNT series “Dallas” will be exclusively available on Netflix in January 2014.


Netflix said last week that it would carry previous seasons of popular shows such as “Revolution” and “Political Animals” produced by Warner Bros Television.


It also won a deal in December to stream movies from Walt Disney Co’s live action and animation studios, including those from Pixar, Marvel, and the recently acquired Lucasfilms.


Netflix shares were trading up 3 percent at $ 103.92 on Monday afternoon on the Nasdaq.


(Reporting by Sruthi Ramakrishnan in Bangalore; Editing by Roshni Menon)


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Vital Signs: Nutrition: Vitamin D Doesn’t Reduce Knee Pain

About 27 million people in the United States have osteoarthritis, an incurable condition with few effective treatments beyond pain control. Some observational evidence suggests that vitamin D supplements might slow progression of the disease.

But a two-year randomized placebo-controlled study found that vitamin D did not reduce knee pain or restore cartilage.

In an article published in The Journal of the American Medical Association last week, researchers described a study of 146 men and women with painful knee arthritis who were randomly assigned to take vitamin D supplements or placebos. Vitamin D was given in quantities sufficient to raise blood levels to 36 nanograms per milliliter, a level considered sufficient for good health.

Knee pain decreased slightly in both groups, but there were no differences in the amount of cartilage lost, bone mineral density or joint deterioration as measured by X-rays and M.R.I. scans.

The lead author, Dr. Timothy McAlindon, chief of the division of rheumatology at Tufts Medical Center, said taking vitamin D in higher doses or for longer periods might make a difference, but he’s not hopeful.

“Although there were lots of promising observational data, we find no efficacy of vitamin D for knee osteoarthritis,” he said. “There may be reasons to take vitamin D supplements, but knee osteoarthritis is not one of them.”

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Facebook to add search

Chicago Tribune social media editor Scott Kleinberg discusses the new search feature that Facebook revealed today. (Posted on: Jan. 15, 2013)









Facebook Inc. CEO Mark Zuckerberg unveiled on Tuesday a feature to help its users search for people and places within the social network, in the company's first major product launch since its May initial public offering.

Speaking to reporters at its Menlo Park, Calif. headquarters, Zuckerberg revealed "graph search," which allows users to sort through only content that has been shared with them -- addressing potential privacy concerns.






Available as a beta or early version to hundreds of thousands of users now, the new feature -- dubbed "graph search" because Facebook refers to its growing content, data and membership as the "social graph" -- will initially let users browse mainly photographs, people, places and members' interests, he added.

Zuckerberg promised users will be able to tailor their searches, such as by specifying music and restaurants that their friends like, or their favorite dentist. The reverse is also possible, such as discovering friends who have an interest in a particular topic.

Facebook may explore ways to earn revenue off of the service in the future, he added.

"You need to be able to ask the query, like, who are my friends in San Francisco," Zuckerberg said. "Graph search is a really big product. It's going to take years and years to index the whole map of the graph and everything we have out there."

"We'll start rolling it out very slowly. We're looking forward to getting it into more people's hands over coming weeks and months."

Critics have long deemed the social network's current search capabilities inadequate. Zuckerberg stressed Facebook was not getting into Internet searches, Google Inc's specialty.

But the news drove shares in Yelp Inc, which focuses on pooling customer reviews of restaurants and other popular services, about 7.1 percent lower. Wedbush Securities analyst Michael Pachter argued that recommendations from trusted friends were more valuable than from strangers on the Web.

"The initial focus is on getting users more engaged, so this is making Facebook more useful and sticky," Pachter said. "I don't see a revenue model initially, but think ultimately, search makes user activity even more relevant to advertisers, and allows greater focus."

MAKING MONEY

The world's largest online social network, with more than one billion users, Facebook is moving to regain Wall Street's confidence in the wake of a rocky IPO and concerns about its long-term money-making prospects.

Central to its efforts is devising new ways to make money from users who are migrating to mobile devices. Zuckerberg said the company is working on that front.

Speculation approached fever pitch over the past week about what Facebook planned to reveal in its highest-profile news briefing since its market debut. Guesses had ranged from a long-rumored smartphone to a full Web-search product.

That anticipation, as well as expectations of strong fourth-quarter financial results, helped boost Facebook's stock. Its shares are up more than 15 percent since the start of the year.

On Tuesday, its stock slid 2 percent at $30.30, giving up some of its recent gains.

"The search function on Facebook was basic and as such, a wasted opportunity given Facebook's imperative to strengthen advertising revenues," said Ovum Research analyst Eden Zoller.

Zuckerberg said he could foresee a business in search over time, but analysts advised caution. Facebook has come under fire numerous times for unclear privacy guidelines.

"Facebook graph search will no doubt leverage member data to provide advertisers with more targeted, personalized advertising opportunities going forward. But Facebook needs to tread very carefully here and be mindful of user privacy," Zoller said.

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