Thruster Problem Forces SpaceX to Reschedule ISS Docking

An anomaly with the thrusters aboard its Dragon spacecraft caused SpaceX to miss a scheduled burn to adjust the capsule orbit on Friday, causing SpaceX to delay by at least 24 hours Saturday’s planned rendezvous with the International Space Station.

SpaceX engineers have been working full-throttle to resolve the thruster issue, which followed a picture-perfect launch atop the Falcon 9 rocket. SpaceX founder and CEO Elon Musk and NASA officials said they are confident Musk’s engineers will resolve the problem quickly and could have Dragon on track for a rendezvous Sunday.

Engineers at SpaceX mission control in southern California saw the first signs of trouble shortly after Dragon reached orbit.

“It was a little frightening there,” Musk told reporters in a post-flight press conference. “We noticed after separation that only one of the four thruster quads was ready to engage. We saw that the oxidizer pressure in three of the four tanks was low.”

Dragon has four thruster quads, used to maneuver the spacecraft in orbit. They are essential to the docking procedure and three of them are required by NASA to be working flawlessly in order to make the final approach to the International Space Station. Two of the “quads” are comprised of four small Draco thrusters while the other two actually have five thrusters apiece. The Dracos are initially used to adjust Dragon’s orbit to begin its rendezvous with the station. Once Dragon has used them to achieve general proximity with the ISS, they are used to make the small adjustments needed for docking.

An initial investigation by SpaceX points to a possible blockage in a line that leads from a helium tank to an oxidizer tank that provides the oxygen needed for combustion. Inert helium is used to pressurize the four oxidizer tanks. There are four corresponding kerosene fuel tanks for the thrusters as well.

Musk called the problem, “a glitch of some kind, and not a serious thing.” He says the best guess is a piece of “frozen oxidizer” got stuck in the line. The oxidizer is liquid oxygen, and Musk says he believes it eventually warmed up enough that the liquid oxygen could resume flowing.

“We’ve been able to free that up by cycling the valves,” he said, referring to the control valves between the helium and oxidizer tanks.

As the day wore on, Musk said the four oxidizer tanks and the thruster quads were operating nominally. A successful co-elliptical burn happened late in the afternoon to raise Dragon from an altitude of 200 kilometers to something between 250 and 300 kilometers. This procedure was essential, Musk said, because Dragon’s orbit would decay within days at the lower altitude, forcing an unwanted re-entry.

With only one of the thruster quads ready to go shortly after launch, there was a delay in deploying Dragon’s power-generating solar arrays because engineers want two functioning thrusters so they can maneuver the capsule prior to the deployment. Engineers later decided to proceed with deployment with a single thruster after temperatures continued dropping on the array’s actuators. Deploying the arrays provides Dragon with power beyond the on-board batteries.

Because SpaceX missed the initial burn required to begin the rendezvous with the space station, Dragon will miss Saturday morning’s planned docking with the ISS. Once engineers have confirmed all four thruster quads are working properly, they’ll begin the planned burns and maneuvers needed to approach the station. NASA officials said those maneuvers will allow them to see if the thrusters are working properly and provide the confidence needed to proceed with docking.

In order to operate inside of a safe ellipsoid around the ISS, Dragon must have at least three working thruster quads. Once inside the ellipsoid, there are several contingency plans that allow for aborting the approach. The final safety zone around the station is known by the acronym KOS — the Keep Out Sphere, an area 200 meters around the space station. The final decision to enter KOS will be made only if everything is functioning properly.

NASA officials said the next likely chance for docking will be Sunday and there are several windows of opportunity during the next week, but both NASA and SpaceX said they must wait until they know Dragon is working as planned. There is no rush, everyone said, and Musk said that, in a worst-case scenario, SpaceX “would keep [Dragon] up there for at least a month” to troubleshoot the problem. The only blackout days are on and around March 15, when six astronauts aboard the station are slated to come home aboard a Russian Soyuz capsule.

This isn’t the first time SpaceX has had problems during flight. During the demonstration flight to the space station in May, a stuck nitrogen purge valve led to an automatic engine shutdown that aborted the launch of the Falcon 9 rocket.

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Well: A Rainbow of Root Vegetables

This week’s Recipes for Health is as much a treat for the eyes as the palate. Colorful root vegetables from bright orange carrots and red scallions to purple and yellow potatoes and pale green leeks will add color and flavor to your table.

Since root vegetables and tubers keep well and can be cooked up into something delicious even after they have begun to go limp in the refrigerator, this week’s Recipes for Health should be useful. Root vegetables, tubers (potatoes and sweet potatoes, which are called yams by most vendors – I mean the ones with dark orange flesh), winter squash and cabbages are the only local vegetables available during the winter months in colder regions, so these recipes will be timely for many readers.

Roasting is a good place to begin with most root vegetables. They sweeten as they caramelize in a hot oven. I roasted baby carrots and thick red scallions (they may have been baby onions; I didn’t get the information from the farmer, I just bought them because they were lush and pretty) together and seasoned them with fresh thyme leaves, then sprinkled them with chopped toasted hazelnuts. I also roasted a medley of potatoes, including sweet potatoes, after tossing them with olive oil and sage, and got a wonderful range of colors, textures and tastes ranging from sweet to savory.

Sweet winter vegetables also pair well with spicy seasonings. I like to combine sweet potatoes and chipotle peppers, and this time in a hearty lentil stew that we enjoyed all week.

Here are five colorful and delicious dishes made with root vegetables.

Spicy Lentil and Sweet Potato Stew With Chipotles: The combination of sweet potatoes and spicy chipotles with savory lentils is a winner.

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Roasted Carrots and Scallions With Thyme and Hazelnuts: Toasted hazelnuts add a crunchy texture and nutty finish to this dish.

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Carrot Wraps: A vegetarian sandwich that satisfies like a full meal.

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Rainbow Potato Roast: A multicolored mix that can be vegan, or not.

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Leek Quiche: A lighter version of a Flemish classic.

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A Volatile Week Ends With Modest Gains

Stocks advanced modestly on Friday, leaving the Standard & Poor’s 500-stock index with slight gains after a volatile week, as strong economic data overshadowed growth concerns in China and Europe and let investors discount the impact of federal spending cuts.

Data reported early in the day showed that Asian factories were slowing and European output was falling, setting off a sharp drop at the beginning of trading in New York. But most of the losses evaporated after a report showed that United States manufacturing activity had expanded in February at the fastest pace in 20 months. Consumer sentiment also rose in February as Americans turned more optimistic about the job market.

As $85 billion in government budget cuts took effect on Friday, President Obama blamed Republicans for the lack of a compromise to avert the so-called sequester. But the stock market appeared to have already priced in legislators’ failure to reach an agreement.

“We were able to dig out of that hole, but not make any great strides on it either,” said Peter M. Jankovskis, co-chief investment officer at OakBrook Investments in Lisle, Ill. “We will probably be in a holding pattern pending some big development on a broader budget deal.”

The Dow Jones industrial average gained 35.17 points, or 0.25 percent, to 14,089.66. The S.& P. 500 rose 3.52 points, or 0.23 percent, to 1,518.20. The Nasdaq composite index advanced 9.55 points, or 0.3 percent, to 3,169.74.

For the week, the Dow rose 0.64 percent, the S.& P. 500 edged up 0.17 percent and the Nasdaq gained 0.25 percent.

It was a bumpy road to the week’s slight gains. The markets slid on Monday after inconclusive elections in Italy revived concerns about the euro zone, only to rebound in the next two sessions after the Federal Reserve chairman, Ben S. Bernanke, defended the central bank’s stimulus measures.

The low interest rates from the Federal Reserve’s monetary policy have helped equities continue to attract investors. The Dow is less than 1 percent away from its nominal intraday record of 14,198.10. Declines have been shallow and short-lived, with investors jumping in to buy when the market dips.

Advancing stocks outnumbered declining ones on the New York Stock Exchange by a ratio of about 17 to 13, while on the Nasdaq, about seven stocks rose for every five that fell.

Shares of Intuitive Surgical jumped 8.5 percent on Friday, to $553.40, after a Cantor Fitzgerald analyst, Jeremy Feffer, upgraded the stock, saying a slide of more than 11 percent on Thursday had been a gross overreaction to a news report.

Groupon shares surged 12.6 percent, to $5.10, a day after the company fired its chief executive in response to weak quarterly results.

Gap stock rose 2.9 percent, to $33.87, after the company reported fourth-quarter earnings that beat expectations and raised its dividend by 20 percent. Salesforce.com posted sales that beat forecasts, driving its stock up 7.6 percent, to $182.

Chesapeake Energy shares fell 2.4 percent, to $19.67, after the Securities and Exchange Commission escalated its investigation of the company and its chief executive, Aubrey McClendon, over a perk that granted him a share in each of the natural gas producer’s wells.

The benchmark 10-year Treasury note rose 10/32, to 101 13/32, and its yield fell to 1.85 percent from 1.88 percent late on Thursday.

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Jury in Bell corruption trial may be deadlocked

A court spokeswoman said Thursday the jury in the Bell corruption case appears to be deadlocked.

“The jurors may be at an impasse,” said Patricia Kelly, a spokeswoman for L.A. County Superior Court.

Jurors sent a note to the judge Thursday morning, and all the attorneys in the case were called in.

Six former Bell City Council members are accused of stealing public money by paying themselves extraordinary salaries in one of Los Angeles County’s poorest cities.

Luis Artiga, Victor Bello, George Cole, Oscar Hernandez, Teresa Jacobo and George Mirabal are accused of misappropriation of public funds, felony counts that could bring prison terms.

They were arrested in September 2010 and have been free on bail.

The nearly $100,000 salaries drawn by most of the former elected officials are part of a much larger municipal corruption case in the southeast Los Angeles County city in which prosecutors allege that money from the city’s modest general fund flowed freely to top officials.

The three defendants who testified painted a picture of a city as a place led by a controlling, manipulative administrator who handed out enormous salaries, loaned city money and padded future pensions. Robert Rizzo, the former adminstrator, and ex-assistant city manager Angela Spaccia are also awaiting trial.

The four-week trial of the former council members turned on extremes.

Deputy Dist. Atty. Edward Miller said the council members were little more than common thieves who were consumed with fattening their paychecks at the expense of the city’s largely immigrant, working-poor residents.

Miller said the accused represented the “one-percenters" of Bell who had “apparently forgotten who they are and where they live."

Defense attorneys said the former city leaders -- one a pastor, another a mom-and-pop grocery store owner, another a funeral director -- were dedicated public servants who put in long hours and tirelessly responded to the needs of their constituents.

Jacobo testified that Rizzo informed her she could quit her job as a real estate agent and receive a full-time salary as a council member. She said she asked City Attorney Edward Lee if that was possible and he nodded his head.

"I thought I was doing a very good job to be able to earn that, yes," Jacobo said.

Cole said Rizzo was so intimidating that the former councilman voted for a 12% annual pay raise out of fear the city programs he established would be gutted by Rizzo in retaliation if he opposed the pay hikes.

The defense argued that the prosecution failed to prove criminal negligence -- that their clients knew what they were doing was wrong or that a reasonable person would know it was wrong.

The attorney for Hernandez, the city’s mayor at the time of the arrests, said his client had only a grade-school education, was known more for his heart than his intellect and was, perhaps, not overly “scholarly.”

Prosecutors argued that the council members pushed up their salaries by serving on city boards that rarely met and, in one case, existed only as a means for paying them even more money.

Jurors were also left to deal with the question of whether council members were protected by a City Charter that was approved in a special election that drew fewer than 400 voters.

Defense attorneys say the charter allowed council members to be paid for serving on the authorities.

But the prosecutor argued that the charter -- a quasi-constitution for a city -- set salaries at what councils in similar-sized cities were receiving under state law: $8,076 a year. Because council members automatically serve on boards and commissions, the district attorney said the total compensation for all of each council member's work was included in that figure.

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Groupon CEO Fired as Daily-Deals Biz Bottoms Out

Groupon CEO Andrew Mason has been fired after another quarterly earnings whiff from the onetime darling of the daily-deals business. It’s a business that doesn’t really have any darlings now.

Groupon under Mason’s leadership infamously spurned Google’s $6 billion buyout offer. Google promptly turned around and launched its own daily deals site. Today Groupon is worth less than half of what Google offered, and less than a quarter of its value following its 2011 stock market debut — at the time the biggest internet IPO since Google’s in 2004.

Google’s own daily-deals endeavor didn’t so much kill Groupon’s business as a competitor, but rather exposed the whole business model as flawed.

As many others have pointed out, Groupon was never really a tech company but for some reason was perceived as one. In reality, Groupon is a sales business that uses technology but still relies intensively on human labor to do the selling. As it turns out, the barrier to entry into a business like that is nearly nonexistent. Competitors proliferated just as businesses and consumers started losing interest in the whole concept.

Since then, Groupon has tried to diversify into other businesses such as discount e-commerce and mobile payments. But the changes seem like too little, too late for investors and for Mason, who confirmed his departure in a note he posted online. “The events of the last year-and-a-half speak for themselves,” Mason wrote. “As CEO, I am accountable.”

Here’s the full text of Mason’s note:

(This is for Groupon employees, but I’m posting it publicly since it will leak anyway)

People of Groupon,

After four and a half intense and wonderful years as CEO of Groupon, I’ve decided that I’d like to spend more time with my family. Just kidding – I was fired today. If you’re wondering why… you haven’t been paying attention. From controversial metrics in our S1 to our material weakness to two quarters of missing our own expectations and a stock price that’s hovering around one quarter of our listing price, the events of the last year and a half speak for themselves. As CEO, I am accountable.

You are doing amazing things at Groupon, and you deserve the outside world to give you a second chance. I’m getting in the way of that. A fresh CEO earns you that chance. The board is aligned behind the strategy we’ve shared over the last few months, and I’ve never seen you working together more effectively as a global company – it’s time to give Groupon a relief valve from the public noise.

For those who are concerned about me, please don’t be – I love Groupon, and I’m terribly proud of what we’ve created. I’m OK with having failed at this part of the journey. If Groupon was Battletoads, it would be like I made it all the way to the Terra Tubes without dying on my first ever play through. I am so lucky to have had the opportunity to take the company this far with all of you. I’ll now take some time to decompress (FYI I’m looking for a good fat camp to lose my Groupon 40, if anyone has a suggestion), and then maybe I’ll figure out how to channel this experience into something productive.

If there’s one piece of wisdom that this simple pilgrim would like to impart upon you: have the courage to start with the customer. My biggest regrets are the moments that I let a lack of data override my intuition on what’s best for our customers. This leadership change gives you some breathing room to break bad habits and deliver sustainable customer happiness – don’t waste the opportunity!

I will miss you terribly.

Love,

Andrew

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Doctor and Patient: Why Failing Med Students Don’t Get Failing Grades

Tall and dark-haired, the third-year medical student always seemed to be the first to arrive at the hospital and the last to leave, her white coat perpetually weighed down by the books and notes she jammed into the pockets. She appeared totally absorbed by her work, even exhausted at times, and said little to anyone around her.

Except when she got frustrated.

I first noticed her when I overheard her quarreling with a nurse. A few months later I heard her accuse another student of sabotaging her work. And then one morning, I saw her storm off the wards after a senior doctor corrected a presentation she had just given. “The patient never told me that!” she cried. The nurses and I stood agape as we watched her stamp her foot and walk away.

“Why don’t you just fail her?” one of the nurses asked the doctor.

“I can’t,” she sighed, explaining that the student did extremely well on all her tests and worked harder than almost anyone in her class. “The problem,” she said, “is that we have no multiple choice exams when it comes to things like clinical intuition, communication skills and bedside manner.”

Medical educators have long understood that good doctoring, like ducks, elephants and obscenity, is easy to recognize but difficult to quantify. And nowhere is the need to catalog those qualities more explicit, and charged, than in the third year of medical school, when students leave the lecture halls and begin to work with patients and other clinicians in specialty-based courses referred to as “clerkships.” In these clerkships, students are evaluated by senior doctors and ranked on their nascent doctoring skills, with the highest-ranking students going on to the most competitive training programs and jobs.

A student’s performance at this early stage, the traditional thinking went, would be predictive of how good a doctor she or he would eventually become.

But in the mid-1990s, a group of researchers decided to examine grading criteria and asked directors of internal medicine clerkship courses across the country how accurate and consistent they believed their grading to be. Nearly half of the course directors believed that some form of grade inflation existed, even within their own courses. Many said they had increasing difficulty distinguishing students who could not achieve a “minimum standard,” whatever that might be. And over 40 percent admitted they had passed students who should have failed their course.

The study inspired a series of reforms aimed at improving how medical educators evaluated students at this critical juncture in their education. Some schools began instituting nifty mnemonics like RIME, or Reporter-Interpreter-Manager-Educator, for assessing progressive levels of student performance; others began to call regular meetings to discuss grades; still others compiled detailed evaluation forms that left little to the subjective imagination.

Now a new study published last month in the journal Teaching and Learning in Medicine looks at the effects of these many efforts on the grading process. And while the good news is that the rate of grade inflation in medical schools is slower than in colleges and universities, the not-so-good news is that little has changed. A majority of clerkship directors still believe that grade inflation is an issue even within their own courses; and over a third believe that students have passed their course who probably should have failed.

“Grades don’t have a lot of meaning,” said Dr. Sara B. Fazio, lead author of the paper and an associate professor of medicine at Harvard Medical School who leads the internal medicine clerkship at the Beth Israel Deaconess Medical Center in Boston. “‘Satisfactory’ is like the kiss of death.”

About a quarter of the course directors surveyed believed that grade inflation occurred because senior doctors were loath to deal with students who could become angry, upset or even turn litigious over grades. Some confessed to feeling pressure to help students get into more selective internships and training programs.

But for many of these educators, the real issue was not flunking the flagrantly unprofessional student, but rather evaluating and helping the student who only needed a little extra help in transitioning from classroom problem sets to real world patients. Most faculty received little or no training or support in evaluating students, few came from institutions that had remediation programs to which they could direct students, and all worked under grading systems that were subjective and not standardized.

Despite the disheartening findings, Dr. Fazio and her co-investigators believe that several continuing initiatives may address the evaluation issues. For example, residency training programs across the country will soon be assessing all doctors-in-training with a national standards list, a series of defined skills, or “competencies,” in areas like interpersonal communication, professional behavior and specialty-specific procedures. Over the next few years, medical schools will likely be adopting a similar system for medical students, creating a national standard for all institutions.

“There have to be unified, transparent and objective criteria,” Dr. Fazio said. “Everyone should know what it means when we talk about educating and training ‘good doctors.’”

“We will all be patients one day,” she added. “We have to think about what kind of doctors we want to have now and in the future.”

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Advertising: A Shared History in Detroit Is an Ad Inspiration

THE Chrysler Group is bringing to life the advertising theme for its Chrysler brand, “Imported from Detroit,” through an innovative partnership with a coming Broadway show that bears the Detroit-inspired name of one of the most famous brands in music.

The partnership unites Chrysler and “Motown: the Musical,” about the musical legacy of Berry Gordy and Motown, the record label he founded that is now owned by the Universal Music Group. The musical, scheduled to open on April 14 at the Lunt-Fontanne Theater, is the beneficiary of an elaborate promotional initiative by the Chrysler brand that supplements the show’s own efforts to encourage ticket sales.

The centerpiece of the Chrysler brand’s support is a television commercial that has been running nationally since December, featuring Mr. Gordy riding in a Motown Edition of a Chrysler 300C sedan as the seminal Motown song “Ain’t No Mountain High Enough” plays on the soundtrack.

The commercial, created by a Chrysler Group agency, GlobalHue in Southfield, Mich., begins with Mr. Gordy at the original “Hitsville U.S.A.” Motown headquarters building in Detroit and ends with him arriving at the Lunt-Fontanne and declaring: “We are Motown. And this is what we do.” As Mr. Gordy enters the theater, the Chrysler slogan appears, altered to read “Imported from Motown.”

The words “ ‘Motown: the Musical’ on Broadway March 2013” appear, referring to the start of previews on March 11, and the address of the show’s Web site, motownthemusical.com, along with the Chrysler brand Web address, chrysler.com.

The commercial is believed to be the first time that a Broadway show has had such paid national television exposure as it prepares to open in New York. The commercial is in addition to a commercial that the producers of “Motown: the Musical” are running on stations in the New York market; the local commercial was created by SpotCo in New York, part of Reach4entertainment Enterprises.

The Chrysler brand will also buttress the show’s marketing with colorful signs to go up in coming days in Penn Station and Times Square. The signs display a Chrysler 300 Motown Edition, the Chrysler logo, the logo of “Motown: the Musical” and photographs of cast members of the show like Brandon Victor Dixon, who portrays Mr. Gordy.

The Chrysler Group is spending an estimated $6 million to $8 million to promote “Motown: the Musical.” The budget for the ads from the show’s producers, Mr. Gordy, Kevin McCollum and Doug Morris, is estimated at $2 million.

The automaker’s efforts extend beyond the product placement and sponsorship agreements that have become increasingly prevalent on Broadway as theater enters the realm of so-called entertainment marketing with television, movies and video games. Unlike the provisions of many of those deals, the Chrysler name is not being added to a lyric of a Motown song, nor are there plans to park a car in the lobby of the Lunt-Fontanne.

Rather, the partnership is about “merging both journeys, the journey of the Chrysler brand and the journey of Mr. Gordy and his music,” said Olivier François, chief marketing officer at the Chrysler Group.

“Motown is the most exported from Detroit of any music and, in this case, imported to New York,” Mr. François said. “It’s putting together the sound and the drive of Detroit. We were meant to meet.”

That thought is expressed in the national commercial, in which a narrator proclaims, “Because if cars are our city’s heart, music is its soul.”

That the partnership is centered on music is no coincidence. Mr. François, a producer of pop music in his native France in the 1980s, described the Motown catalog as “part of the American patrimony” that “will live forever.”

“And so is Chrysler,” he said hopefully. “Regardless of my passion for the Motown music and my respect for Mr. Gordy, I would not have pushed to tie a brand to Motown if there wasn’t this new Chrysler story,” Mr. François said, referring to “Imported from Detroit,” which was introduced in 2011 with a Super Bowl commercial featuring another famous Detroit music figure, Eminem.

“The Motown name has a huge value,” he added. “Does it have a huge value for any car? Maybe not.”

Mr. McCollum, whose Broadway credits include “Avenue Q” and “Rent,” invoked another musical to explain how the show and the Chrysler Group came together: “Kismet.”

“About a year ago, we flew to Detroit and sat down with Olivier and his team, and they pitched the idea,” Mr. McCollum said. “It’s about a collaboration between these two great American industries that came out of one place.”

Besides, he added, Mr. Gordy was “highly influenced by his early days working in an auto plant, learning that you have to put something out there people want.”

Mr. McCollum said he was glad to join Mr. François and Mr. Gordy in “celebrating Detroit when you’d think it’s contrarian thinking” to do so because Motown, Chrysler and “Motown: the Musical” are all about “the power of the American dream.”

The SpotCo campaign for the show — and a public relations effort by Boneau/Bryan-Brown in New York — play that up. The local commercial, for instance, extols Motown’s songs as “the soundtrack that changed America, the beat of a generation, the soul of a nation.”

The goal is “less transactional,” said Ilene Rosen, associate chief operating officer at SpotCo, and “more about synergizing the Motown and Chrysler brands to elevate both.”

As much as other Broadway producers would probably welcome a deep-pocketed partner like the Chrysler Group, the unique circumstances that produced the partnership may make it difficult to emulate, she added.

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Race for L.A. city controller heats up

A previously low-profile race for Los Angeles city controller has begun to heat up as opponents of City Councilman Dennis Zine accuse him of "double dipping" the city's payroll and question why he is considering lucrative tax breaks for a Warner Center developer.

Zine, who for 12 years has represented a district in the southeast San Fernando Valley, is the better known of the major candidates competing to replace outgoing Controller Wendy Greuel.

The others are Cary Brazeman, a marketing executive, and lawyer Ron Galperin. Zine has raised $766,000 for his campaign, more than double that of Galperin, the next-highest fundraiser, and has the backing of several of the city's powerful labor unions.

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He also has been endorsed by Mayor Antonio Villaraigosa and several of his council colleagues. Galperin is backed by the Service Employees International Union, one the city's largest labor groups, and Brazeman is supported by retired Rep. Diane Watson and several neighborhood council representatives.

With the primary ballot less than a week away, Brazeman and Galperin have turned up the heat on Zine, hoping to push the race beyond the March 5 vote. If no one wins more than 50% of the ballots cast, the top two vote-getters will face a runoff in the May general election.

In a recent debate, Zine's opponents criticized him for receiving a $100,000 annual pension for his 33 years with the Los Angeles Police Department and a nearly $180,000 council salary. Brazeman and Galperin called it an example of "double dipping" that should be eliminated.

That brought a forceful response from Zine, who shot back that he gives a big portion of his police pension check to charities.

"I am so tired of hearing 'double dipping,' " he said. "I worked 33 years on the streets of Los Angeles. I have given over $300,000 to nonprofits that need it.... That's what's happened with that pension."

In the same debate, Brazeman accused Zine of cozying up to a Warner Center developer by pushing for tax breaks on a project that already has been approved. The nearly 30-acre Village at Westfield Topanga project would add 1 million square feet of new shops, restaurants, office space and a hotel to a faded commercial district on Topanga Canyon Boulevard.

"The councilman proposed to give developers at Warner Center tens of millions of dollars in tax breaks even though it's a highly successful project," he said. "He wants to give it away."

City records show that less than a month after the development was approved in February 2012, Zine asked the council for a study looking at possible "economic development incentives" that could be given to Westfield in return for speeding up street and landscaping enhancements to the project's exterior.

The motion's language notes that similar tax breaks have been awarded to large projects in the Hollywood and downtown areas, and that "similar public investment in the Valley has been lacking." Westfield is paying for the $200,000 study.

Zine defended his decision before the debate audience, saying if the study finds that the city will not benefit, no tax breaks will be awarded. "If there's nothing there, then they get nothing," Zine said.

The controller serves as a public watchdog over the city's $7.3-billion annual operation, auditing the general fund, 500 special fund accounts and the performance of city departments. Those audits often produce recommendations for reducing waste, fraud and abuse.

But the mayor and the council are not obligated to adopt those recommendations, and as a result the job is part accountant, part scolder in chief. All the candidates say they will use their elective position not only to perform audits but also to turn them into action.

Their challenge during the campaign has been explaining how they will do that.

Zine, 65, says his City Hall experience has taught him how to get things done by working with his colleagues. He won't be afraid to publicly criticize department managers, he said, but thinks collaboration works better than being combative.

"You can rant and rave and people won't work with you," he said. "Or you can sit down and talk it out, and you can accomplish things."

Galperin, 49, considers himself a policy wonk who relishes digging into the details to come up with ways to become more efficient with limited dollars and to find ways to raise revenue using the city's sprawling assets. For instance, the city owns two asphalt plants that could expand production and sell some of its material to raise money to fix potholes, he said.

He's served on two city commissions, including one that found millions of dollars in savings by detailing ways to be more efficient. Zine is positioning himself as a "tough guy for tough times," but the controller should be more than that, Galperin said.

"What we really need is some thoughtfulness and some smarts and some effectiveness," he said. "Just getting up there and saying we need to be tough is not going to accomplish what needs to be done."

Brazeman, 46, started his own marketing and public relations firm in West Los Angeles a decade ago and became active in city politics over his discontent with a development project near his home. He has pushed the council to change several initiatives over the last five years, including changes to the financing of the Farmers Field stadium proposal that will save taxpayer dollars, he said.

As controller, he would pick and choose his battles, and, Brazeman said, be "the right combination of constructive, abrasive and assertive."

catherine.saillant@latimes.com

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Meet the Common Man's Robot: Headless and Adorable

LONG BEACH, California — Go into the typical American home and you’ll find a television, a computer, perhaps a videogame console, and even an iPad. But you won’t find a robot. What’s wrong with us?

We haven’t found the right robot. Or at least that’s Keller Rinaudo’s take on the problem, presented at the TED conference Tuesday along with his creation: A $150 robot named Romo, which can stream video, wheel around in response to remote control, and be custom programmed.

Except that Romo isn’t so much a robot as an iPhone accessory, a base with tracked a wheels for movement. You plug your Apple smartphone into Romo’s movable hinge, and the iPhone forms Romo’s face, as well as its brain, eyes, ears, and means of remote control and communication.

“By leveraging the power of the iPhone’s processor we can create a robot that is Wi-Fi enabled and computer-vision capable for $150, which is about 1 percent of what these kinds of robots would cost in the past,” Rinaudo told the audience at TED.

This makes Romo just one of the most ambitious members of an entire generation of cheap, rapidly developed hardware devices that owe their existence to smartphones and their ability to leverage the processors, screens, and sensors that come along with those devices.

To the Romo, the iPhone supplies a camera with which to detect your face; a display to show Romo’s eyes, which follow the user; and a Wi-Fi connection, which is used to beam video to a different Apple device, which can be used to drive the Romo around. The iPhone’s processor, meanwhile, is used to evaluate command logic that can be set up by the user ahead of time using a simplified, drag-and-drop programming interface.

Rinaudo keeps coming back to the lively animated face, complete with a goofy smile, which he hopes will help Romo sell when it comes on the market this June.

“It has to be something people want to take home and have around their kids,” Rinaudo says. “It should be friendly and it should be cute.”

That cuteness will be enough to get the Romo in the door, but whether it appeals to the common man or woman will have more to do with its functionality. Maybe future versions can be adorable while also being able to fetch drinks from the fridge.

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Global Health: After Measles Success, Rwanda to Get Rubella Vaccine

Rwanda has been so successful at fighting measles that next month it will be the first country to get donor support to move to the next stage — fighting rubella too.

On March 11, it will hold a nationwide three-day vaccination campaign with a combined measles-rubella vaccine, hoping to reach nearly five million children up to age 14. It will then integrate the dual vaccine into its national health service.

Rwanda can do so “because they’ve done such a good job on measles,” said Christine McNab, a spokeswoman for the Measles and Rubella Initiative. M.R.I. helped pay for previous vaccination campaigns in the country and the GAVI Alliance is helping to finance the upcoming one.

Rubella, also called German measles, causes a rash that is very similar to the measles rash, making it hard for health workers to tell the difference.

Rubella is generally mild, even in children, but in pregnant women, it can kill the fetus or cause serious birth defects, including blindness, deafness, mental retardation and chronic heart damage.

Ms. McNab said that Rwanda had proved that it can suppress measles and identify rubella, and it would benefit from the newer, more expensive vaccine.

The dual vaccine costs twice as much — 52 cents a dose at Unicef prices, compared with 24 cents for measles alone. (The MMR vaccine that American children get, which also contains a vaccine against mumps, costs Unicef $1.)

More than 90 percent of Rwandan children now are vaccinated twice against measles, and cases have been near zero since 2007.

The tiny country, which was convulsed by Hutu-Tutsi genocide in 1994, is now leading the way in Africa in delivering medical care to its citizens, Ms. McNab said. Three years ago, it was the first African country to introduce shots against human papilloma virus, or HPV, which causes cervical cancer.

In wealthy countries, measles kills a small number of children — usually those whose parents decline vaccination. But in poor countries, measles is a major killer of malnourished infants. Around the world, the initiative estimates, about 158,000 children die of it each year, or about 430 a day.

Every year, an estimated 112,000 children, mostly in Africa, South Asia and the Pacific islands, are born with handicaps caused by their mothers’ rubella infection.

Thanks in part to the initiative — which until last year was known just as the Measles Initiative — measles deaths among children have declined 71 percent since 2000. The initiative is a partnership of many health agencies, vaccine companies, donors and others, but is led by the American Red Cross, the United Nations Foundation, the Centers for Disease Control and Prevention, Unicef and the World Health Organization.

This article has been revised to reflect the following correction:

Correction: February 27, 2013

An earlier version of this article misstated the source of the vaccine and some financing for the campaign. The vaccine and financing is being provided by the GAVI Alliance, not the Measles and Rubella Initiative.

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