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G.O.P. Balks at Plan to Add Airwaves for Mobile Internet and Wi-Fi

WASHINGTON — House Republicans warned the Federal Communications Commission on Wednesday against “giving away” scarce airwaves that they said could produce up to $19 billion in proceeds if they were instead auctioned to telecommunications companies for use in mobile broadband networks.

The remarks, which came at a House communications subcommittee hearing, took aim at one of the top priorities of Julius Genachowski, the F.C.C. chairman: to make available more unlicensed airwaves, or spectrum, to open congested mobile broadband networks and to use in Wi-Fi hot spots.

In September, the F.C.C. proposed freeing 12 to 20 megahertz of spectrum for those unlicensed uses. The unlicensed space on the electromagnetic spectrum would also be used as “guard bands.” Those are areas that border segments of airwaves that are used by cellphone companies, broadcasters and other communications entities; their purpose is to limit interference from transmissions on nearby airwaves.

Mr. Genachowski defended the commission’s plans. “Unlicensed spectrum has a powerful record of driving innovation, investment and economic growth — hundreds of billions of dollars of value creation for our economy and consumers,” he told the committee on Wednesday.

He pointed to Wi-Fi networks, which operate on unlicensed airwaves on the electromagnetic spectrum, as an example of innovation that has generated “hundreds of billions in tax revenues” and made the United States a leader in the use of unlicensed airwaves.

But Representative Greg Walden, an Oregon Republican, who is chairman of the panel, said the law that gave the F.C.C. the ability to conduct “incentive auctions” of newly available spectrum required “maximizing the proceeds from the auction.”

For the F.C.C. to obtain the highest price for the spectrum it sells, it should limit the size of guard bands, Mr. Walden said; he said the six-megahertz minimum size proposed by the F.C.C. was unnecessarily fat.

Up to $7 billion of auction proceeds is earmarked to help build a nationwide public safety communications network for first responders. The spectrum for the auctions is supposed to come from television broadcasters who voluntarily give it up or move their position on the airwaves in exchange for some of the auction proceeds.

“I support the use of unlicensed spectrum to foster innovation” for relief of congested broadband, Mr. Walden said. “What I cannot support,” he added, “is the unnecessary expansion of unlicensed spectrum in other bands needed for licensed services, especially at the expense of funding for public safety.”

The F.C.C.’s five commissioners, who all testified before the subcommittee on Wednesday, are split 3-2 along party lines over the issue of unlicensed spectrum.

Commissioner Robert M. McDowell, a Republican, said it would be premature for the commission to reserve newly available airwaves for unlicensed use.

Instead, the commission should set aside the “white spaces” between broadcast television channels for unlicensed use, he said. White spaces are similar, but smaller, guard bands in the part of the spectrum dedicated to broadcast television that are intended to minimize interference between stations.

“At this early stage in the incentive auction process,” Mr. McDowell said, “it is not apparent that we should stop the progress well under way in the TV white spaces arena to create a solution for a problem — an alleged shortage of unlicensed spectrum in lower spectrum bands — that may never exist.”

The F.C.C.’s plans for unlicensed spectrum received support from Democrats on the subcommittee, including Representative Henry A. Waxman of California. Mr. Waxman said the way unlicensed spectrum would be set aside and used were settled in negotiations on the Public Safety and Spectrum Act, which was enacted this year.

“I am troubled by attempts by some to relitigate issues that were resolved earlier this year, when the bill passed Congress with widespread support,” Mr. Waxman said.

Republicans on the subcommittee also sparred with Mr. Genachowski over whether the F.C.C. should limit the amount of spectrum any one company could own. That would limit the potential buyers of some spectrum to be auctioned. Supporters of restrictions say they are one of a few ways to give smaller cellphone companies the ability to build nationwide networks.

Separately, the F.C.C. said late Wednesday that it had agreed to allow Dish, the satellite television company, to use spectrum that it controled for mobile broadband; previously, the airwaves were to be used only for satellite transmissions. The change, which was expected, greatly expands the value of the spectrum and could allow Dish to enter a mobile broadband partnership with another wireless company.

Chinese Court Said to Punish Tibetan Students with Prison Terms

Label: World

BEIJING — A Chinese court has sentenced eight Tibetan students to prison for their role in street protests last month that unnerved security forces already coping with a wave of self-immolations, many of them by young people who have become increasingly radicalized in their opposition to Chinese policies in the region, a Washington-based advocacy group reported on Wednesday.

According to the group, the International Campaign for Tibet, the students, from a predominantly Tibetan part of Qinghai Province, were sentenced to five-year terms on Dec. 5 for organizing demonstrations in response to government booklets that vilified the self-immolators and disparaged the Dalai Lama, Tibet’s exiled spiritual leader.

The group said news of the verdicts was based on a Tibetan exile with contacts in the region. Local government officials reached by telephone on Thursday declined to comment.

Word of the trials and convictions comes amid a growing crisis for Beijing as it tries to stop the surge in self-immolations that began more than two years ago. So far, nearly 100 people in Tibetan areas of the country have set themselves on fire, nearly a third of them since November. The majority have been in their teens and 20s.

The authorities have responded harshly, locking down some monasteries, requiring Buddhist monks to attend “political education” classes and issuing new regulations that criminalize any act seen as encouraging the protests. Earlier this week, the official Xinhua news agency said a Tibetan monk and his nephew had been detained for their role in eight self-immolations.

The student demonstrations in Tsolho Prefecture, known in Chinese as Hainan, began late last month after the authorities distributed the pamphlets. Infuriated by several passages, students from the Tsolho Professional Training School marched to a government building chanting slogans that called for “freedom” and Tibetan language rights, according to Radio Free Asia.

At one point, some protesters burned the pamphlets, drawing a violent response from paramilitary police who arrested a number of participants. “They beat up the students, hurled tear gas at them and there was also some kind of explosive used on the student crowd,” according to an account published by Radio Free Asia, quoting a local source. More than 20 students were injured, several critically, the report said.

Although the literature was designed in part to convince local students to support bilingual education, it also took aim at the Dalai Lama, calling him a “political itinerant who wants to split the Chinese Motherland.” It also described the self-immolators as puppets controlled by “foreign imperialist forces.”

Kate Saunders, communications director for the International Campaign for Tibet, said such protests, including a series of student-led demonstrations last month in a nearby city, Rebkong, underscored the intense antipathy young people feel toward Chinese educational policies, which often emphasize Mandarin over Tibetan.

“This is a new political moment in Tibet, with a new generation prepared to directly confront the authorities despite the risks,” Ms. Saunders said. “But it seems the authorities have no strategy other than oppression and as we can see it is not working.”

She said that at least 18 students from the school remained in police custody in addition to three monks who have been accused of sending news of the protests to the outside world.

Mia Li contributed research

Daily Stock Market Activity

Label: Business

Wall Street traded sharply higher Tuesday after unexpectedly cheery data out of Europe and as the Federal Reserve was set to begin its two-day policy meeting.

The Standard & Poor’s 500-stock index added 1 percent in morning trading, while the Dow Jones industrial average rose 0.9 percent and the Nasdaq composite index was up 1.5 percent.

The stock market has entered a traditionally quiet period heading into the end of the year, with thinner trading volumes and fewer large fluctuations likely.

Though the pace of talks quickened in Washington to avert impending tax increases and spending cuts, senior politicians on both sides cautioned that an agreement on all the outstanding issues remained uncertain.

The lack of progress in negotiations about the “fiscal cliff” has kept investors from making aggressive bets in recent weeks, though most expect a deal will eventually be reached.

In Germany, analyst and investor sentiment rose sharply in December, entering positive territory for the first time since May, a leading survey showed. The data helped drive European shares higher. The DAX in Frankfurt was up 0.6 percent in afternoon trading, while the FTSE 100 in London gained 0.2 percent.

“We’ve been getting a lot of the beginning of our day from seeing what Europe has been doing, and I think that’s going to hold true today,” said Kim Caughey Forrest, senior equity research analyst at Fort Pitt Capital Group in Pittsburgh.

The Fed began its two-day Federal Open Market Committee meeting on Tuesday. The central bank was expected to announce a new round of Treasury securities purchases on Wednesday, according to a Reuters survey of analysts. The program would replace its so-called Operation Twist stimulus effort, which expires at the end of the year.

The Treasury Department sold its remaining stake in the American International Group, bringing an end to a government ownership role about four years after a $182 billion bailout. A.I.G.'s shares were up 4 percent in morning trading.

Two firms raised their price targets for Urban Outfitters, sending the retailer’s shares up 6 percent.

Concussion Liability Issues Could Stretch Beyond N.F.L.

Label: Health

Paul Kitagaki Jr./The Sacramento Bee, via Associated Press

Insurers could raise premiums with a higher risk of lawsuits for concussions, like the one 49ers quarterback Alex Smith sustained a month ago.

As the N.F.L. confronts a raft of lawsuits brought by thousands of former players who accuse the league of hiding information about the dangers of concussions, a less visible battle that may have a more widespread effect in the sport is unfolding between the league and 32 of its current and former insurers.

The dispute revolves around how much money, if any, the insurers are obliged to pay for the league’s mounting legal bills and the hundreds of millions of dollars in potential damages that might stem from the cases brought by the retired players.

Regardless of how it is resolved, the dispute could hurt teams, leagues and schools at all levels if insurers raise premiums to compensate for the increased risk of lawsuits from the families of people who play hockey, lacrosse and other contact sports.

The N.F.L., which generates about $9 billion a year, may be equipped to handle these legal challenges. But colleges, high schools and club teams may be forced to consider severe measures in the face of liability issues, like raising fees to offset higher premiums; capping potential damages; and requiring players to sign away their right to sue coaches and schools. Some schools and leagues may even shut down teams because the expense and legal risk are too high.

“Insurers will be tightening up their own coverage and make sports more expensive,” said Robert Boland, who teaches sports law at New York University. “It could make the sustainability of certain sports a real issue.”

The N.F.L. contends that the insurers, some of whom wrote policies in the 1960s, have a duty to defend the league, which has paid them millions of dollars in premiums. The question for the N.F.L. is not whether the insurers are required to help the league, but rather what percent of the league’s expenses each insurer is obliged to cover.

The 32 insurance companies have varying arguments against the league. Some wrote policies for a limited number of years and contend their obligations should also be limited. Others contend they wrote policies for the N.F.L.’s marketing arm — for licensing disputes, for example — not the league itself.

A few of the companies went bankrupt or merged with rivals. Some insurers wrote primary policies that covered up to the first $1 million of claims; the rest insured obligations in excess of that amount.

Creating a formula for how to apportion liability will in some cases depend on the broader case between the league and its players now in federal court in Pennsylvania. If the N.F.L. persuades the judge to dismiss the case, the league will be left trying to recoup its legal costs from the insurers. If the judge allows the players’ case to proceed, the definitions of when, how and whether a player’s concussions led to his illness will become critical in shaping the insurers’ exposure, and could take years to sort out.

“This is baby step 1 in the process for everyone figuring how deep in the soup they are,” said Christopher Fusco, a lawyer who has worked on similar insurance cases but is not involved in the N.F.L. litigation. “Baby step 2 will be to figure out the facts.”

Fusco and other lawyers said the facts would largely come from the underlying suit between the league and the more than 3,000 retired players, including determining when the players sustained the head trauma and their injuries. This will probably be a long process because many of the retired players in the underlying suit, some of whom are now having memory loss, played decades ago, when concussions were often undiagnosed or not recorded.

Many of the insurance companies named in the suits declined to comment, citing the continuing litigation. The N.F.L. also did not comment.

The two-tiered battle between the league and its former players and insurers echoes the litigation stemming from asbestos claims because both cases center on long-tail claims, or injuries that could take years to manifest themselves.

Concussion Liability Issues Could Stretch Beyond N.F.L.

Label: Lifestyle

Paul Kitagaki Jr./The Sacramento Bee, via Associated Press

Insurers could raise premiums with a higher risk of lawsuits for concussions, like the one 49ers quarterback Alex Smith sustained a month ago.

Many of the insurance companies named in the suits declined to comment, citing the continuing litigation. The N.F.L. also did not comment.

John Silva, Maker of ‘Telecopter’ Camera, Dies at 92

Label: Technology

Helicopter news footage is common today. But until myriad problems in sending live pictures from a moving aircraft were solved, television broadcasters could not show an eagle’s-eye view of a forest fire, or contemplate aerial coverage of, say, a famous man fleeing the police in a white Ford Bronco.

John Silva made that now-familiar vantage possible in 1958, when he converted a small helicopter into the first airborne virtual television studio.

The KTLA “Telecopter,” as it was called by the Los Angeles station where Mr. Silva was the chief engineer, became the basic tool of live television traffic reporting, disaster coverage and that most famous glued-to-the-tube moment in the modern era of celebrity-gawking, the 1994 broadcast of O. J. Simpson leading a motorcade of pursuers on Los Angeles freeways after his former wife and a friend of hers were killed.

Mr. Silva, who later earned two Emmy Awards for his pioneering technical work, died in Camarillo, Calif., on Nov. 27. His death was confirmed by a spokesman for KTLA-TV, where he worked from 1946 until leaving to become an electronics design consultant in 1978. He was 92.

Mr. Silva, an electronics engineer trained in radar science during World War II, faced three main roadblocks to transmitting black-and-white images live from helicopters. Rotor vibrations distorted the pictures, and sometimes even cracked the transmitter’s vacuum tubes. Directional antennas went haywire when helicopters changed direction suddenly, as helicopters sometimes do. And the camera equipment weighed a ton.

With help from fellow KTLA engineers, though mainly working alone to keep the project secret from competitors, Mr. Silva stabilized onboard cameras with a system of shock absorbers and cushions, designed aluminum parts to replace heavier metals in his equipment and commissioned an antenna that would extend below the chopper and rotate to maintain uninterrupted contact with KTLA’s mountaintop transmitter. By paring and remachining a basic set of broadcast equipment, he reduced it to 368 pounds from 2,000 pounds and distributed the load with precise symmetry throughout the tiny Bell 47G2 chopper leased for the project to prevent listing.

KTLA, the first commercially licensed television station west of the Rockies, faced growing competition in the late ’50s. New network-affiliated stations were scoring scoops with mobile broadcast units like ones Mr. Silva had pioneered, and everyone was fighting to get through increasingly clogged Los Angeles freeways.

The Telecopter was intended to kill the competition.

“If we could build a news mobile unit in a helicopter,” Mr. Silva recalled in a 2002 interview for the Archive of American Television, “we could get over it all, get there first, avoid the traffic and get to all the stories before anybody in the competition.”

“It’d be a wonderful thing,” he said.

By the time he began work on his airborne live television, Mr. Silva had already achieved a landmark in ground-level television history. In 1949, he was the technical director at KTLA who rigged the electronic connections — using duct-tape ingenuity and a borrowed generator — that carried what historians consider the first live television broadcast of a breaking news event.

The 27-hour rescue operation in San Marino, Calif., to save Kathy Fiscus, a 3-year-old trapped in an abandoned water pipe 94 feet below ground, was unsuccessful; but the station’s coverage was the precursor to every wall-to-wall television event broadcast since.

The Telecopter’s first flight took place at Los Angeles City Hall on July 24, 1958. It re-established KTLA’s dominance (until competitors put their own helicopters up). And for better and worse, it brought a Hollywood-style excitement to television news.

In the archive interview, Mr. Silva was asked what the first live helicopter pictures showed. They were panning shots, he said — zooming in and out of the L.A. landscape between the station’s Sunset Boulevard studio and City Hall.

Most of what they showed, he added, “was the freeway.”

John Daniel Silva was born in San Diego on Feb. 20, 1920, the youngest of three children of a commercial fisherman, Guy Silva, and his wife, Lottie, a homemaker. He attended M.I.T. for two years, and graduated with a bachelor’s degree after two years more at Stanford.

During World War II, he was a Naval officer who positioned radar defenses in the Pacific.

After the war, he worked for Paramount Pictures as an engineer for an experimental television station, W6XYZ, that later became KTLA.

Mr. Silva’s survivors include his wife, Mary Lou Steinkraus-Silva; three daughters, Patricia Vawter, Kathleen Silva and Karen Samaha; and a granddaughter.

The Telecopter had its greatest moments, predictably, at news events of Cecil B. DeMille dimensions: The 1963 dam break at the Baldwin Hills Reservoir in Los Angeles that sent 250 million gallons of water into surrounding neighborhoods, destroying many homes and claiming five lives. The 1965 Watts riots. The 1961 brush fire that swept through Bel Air, sending Hollywood stars scrambling to their roofs with garden hoses.

In his three-hour interview with the television archive, Mr. Silva never mentioned the 1994 O. J. Simpson freeway pursuit footage he made possible. But in answering a question about the future of helicopter reporting, he made clear that he had no regrets about the Telecopter’s role in creating an increasingly graphic television sensibility.

He would just like the lenses to get longer and the close-ups tighter, he said.

“When they’re doing freeway chases, they need to have a system that can come down in front, and be able to get pictures of suspects in the front windshield,” he said, describing one improvement he hoped to see.

Smiling, he added, “To fill the screen with their wonderful faces.”

Cheikh Modibo Diarra, Mali’s Prime Minister, Resigns After Arrest

Label: World

BAMAKO, Mali — Soldiers arrested Mali’s prime minister at his residence late Monday night, signaling new turmoil in a West African nation racked by military interference and an Islamist takeover in the north.

Associated Press

Prime Minister Cheikh Modibo Diarra appeared on state television and announced his government’s resignation on Tuesday.

Hours later, Prime Minister Cheikh Modibo Diarra appeared grim-faced on national television to announce his government’s resignation. A spokesman for soldiers who seized power earlier in the year — and later nominally relinquished it to Mr. Diarra — confirmed the prime minister’s arrest on Tuesday morning, accusing him of “playing a personal agenda” while the country faced a crisis in the north. The soldiers arrived at Mr. Diarra’s home around 11 p.m. Monday as he was preparing for a flight to Paris for a medical checkup, said the military spokesman, Bakary Mariko. The prime minister was taken to the military encampment at Kati, just outside Bamako, the capital, where Capt. Amadou Sanogo, the officer who led the March military coup, and others told him “there were proofs against him that he was calling for subversion,” Mr. Mariko said.

On Tuesday morning, the streets of Bamako appeared calm following what appeared to be the country’s second coup d’état in less than a year. But the new upheaval is likely to be considered a setback to Western efforts to help Mali regain control of territory lost to Qaeda-linked militants earlier in the year.

The West has watched with growing alarm as Islamist radicals have constructed a stronghold in the country’s vast north. The United Nations, regional African bodies, France and the United States have tried to aid the faltering Malian Army in a military strike to take back the lost north. Those efforts have so far not coalesced into a coherent plan, despite numerous meetings and United Nations resolutions. More meetings at the United Nations are planned for later this month.

The latest political turmoil in the capital will almost certainly slow down any campaign in the north, however. Already, the United States has expressed reluctance to provide too much direct military assistance, given the shakiness of the political order here. Those doubts are only likely to increase following the latest upheaval.

Mr. Diarra — appointed last spring as a caretaker prime minister until new elections could be organized — was known to disagree with Captain Sanogo on military policy.

He has been an advocate of immediate international military assistance to recapture the north from the Islamists. Captain Sanogo has rebuffed suggestions that the Malian military is incapable of handling the job on its own. Indeed, the captain for weeks resisted the notion that troops from other African nations should even approach the capital.

While Mr. Diarra has made the rounds of foreign capitals, pleading for help to fight the increasingly aggressive Islamists, military leaders have remained at the Kati base, grumbling.

That conflict was evident in the declarations of the military’s spokesman on Tuesday. “Since he has been in power, he has been working simply to position his own family,” Mr. Mariko said. “There has been a paralysis in government.”

Bloomberg Weighs Making a Run for Financial Times

Label: Business

Not long ago, The Financial Times would have been the crown jewel of any media company, instantly conferring prestige and influence on its owner. Now, given the likely bidders, one of the world’s most respected and distinctive financial newspapers could end up as a trophy to help sell more computer terminals.

Chris Ratcliffe/Bloomberg News, via Getty Images

Like most newspapers, The Financial Times is struggling with an industrywide decline in print advertising revenue.

Pearson, via Agence France-Presse — Getty Images

John Fallon, who is to succeed Marjorie Scardino as chief of Pearson in January, does not share her fondness for print.

Michael R. Bloomberg is weighing the wisdom of buying The Financial Times Group, which includes the paper and a half interest in The Economist, according to three people close to Mr. Bloomberg who spoke on the condition of anonymity to divulge private conversations.

Mr. Bloomberg has long adored The Economist, and his affinity for The Financial Times, at least as a reader, has deepened lately. Its bisque-colored pages, once rarely seen in the thick stack of newspapers Mr. Bloomberg carries under his arm all day, have become a mainstay. Friends say he favors its generally short, punchy and to-the-point articles, which match his temperament.

In October, Mr. Bloomberg visited the London headquarters of The Financial Times, a few blocks away from Bloomberg L.P.’s giant new London complex, which is still under construction. When an editor asked if he would buy the paper, Mr. Bloomberg replied, “I buy it every day.”

He has spoken openly with friends and aides about the potential benefits and pitfalls of making such a costly acquisition in an industry he admires deeply as a reader but sneers at as a businessman, these same people said. And he has recently taken to rattling off circulation figures and “penetration” rates for the paper.

“It’s the only paper I’d buy,” he has said to one associate. “Why should I buy it?” he has asked another.

His ambivalence speaks to the troubles facing the newspaper business, and to the complex motivations of the mayor himself. Drawn to power and prominence, Mr. Bloomberg is wrestling with his affection for the paper as its potential publisher and his wariness of an investment that could mar his company’s reputation for achieving outsize profits. Pearson, the parent company of The Financial Times Group, does not break out separate financial results for the paper, but analysts estimate that it loses money. A spokesman for the mayor declined to comment on his conversations about the paper.

For Thomson Reuters, the other likely bidder, the calculation is somewhat different. Unlike Mr. Bloomberg, who started his financial information company in 1982, James C. Smith, president and chief executive of Thomson Reuters, came up through Thomson’s regional newspapers and has ink in his veins. A replica of an old-fashioned printing press is on display in his corner office overlooking Times Square.

But the company has been hurt financially after its newest desktop terminal product struggled to catch on. In the first nine months of 2012, the company reported revenue of $9.88 billion, a 3 percent decrease from the period a year earlier. A company spokesman declined to comment.

The Financial Times could expand the Thomson Reuters brand and give its reporters additional exposure since, unlike Bloomberg, which bought Businessweek in 2009, the company does not own a regular magazine. Thomson Reuters, partly a British company, and The Financial Times also have large footprints in Asia.

But first, the paper needs to be put on the block. Pearson is about to lose two of its top executives, raising speculation the paper could be for sale. Analysts value The Financial Times Group at about $1.2 billion, well within the reach of Bloomberg L.P., which in 2011 had revenue of $7.6 billion, and Thomson Reuters, which posted revenue of $13.8 billion.

The paper has a successful digital strategy, and analysts have said that its strict online pay wall is considered a financial success. But like most newspapers, it is struggling in an industrywide decline in print advertising revenue. In the three months ending Oct. 1, the paper’s total paid circulation exceeded 600,000, more than half of which was from digital subscriptions. In its most recent earnings report, Pearson said it expected profit to decline because of a sluggish advertising market and “the shift from print to digital.”

Marjorie Scardino, Pearson’s longtime chief executive, who once said the paper would be sold “over my dead body,” is departing on Dec. 31. Rona Fairhead, chief executive of The Financial Times Group, will leave at the end of April. Both executives had championed the print businesses. A successor to Ms. Fairhead has yet to be named, though one person close to the company pointed to John Ridding, the chief executive of the paper.

A Breakthrough Against Leukemia Using Altered T-Cells

Label: Health

PHILIPSBURG, Pa. — Emma Whitehead has been bounding around the house lately, practicing somersaults and rugby-style tumbles that make her parents wince.

It is hard to believe, but last spring Emma, then 6, was near death from leukemia. She had relapsed twice after chemotherapy, and doctors had run out of options.

Desperate to save her, her parents sought an experimental treatment at the Children’s Hospital of Philadelphia, one that had never before been tried in a child, or in anyone with the type of leukemia Emma had. The experiment, in April, used a disabled form of the virus that causes AIDS to reprogram Emma’s immune system genetically to kill cancer cells.

The treatment very nearly killed her. But she emerged from it cancer-free, and about seven months later is still in complete remission. She is the first child and one of the first humans ever in whom new techniques have achieved a long-sought goal — giving a patient’s own immune system the lasting ability to fight cancer.

Emma had been ill with acute lymphoblastic leukemia since 2010, when she was 5, said her parents, Kari and Tom. She is their only child.

She is among just a dozen patients with advanced leukemia to have received the experimental treatment, which was developed at the University of Pennsylvania. Similar approaches are also being tried at other centers, including the National Cancer Institute and Memorial Sloan-Kettering Cancer Center in New York.

“Our goal is to have a cure, but we can’t say that word,” said Dr. Carl June, who leads the research team at the University of Pennsylvania. He hopes the new treatment will eventually replace bone-marrow transplantation, an even more arduous, risky and expensive procedure that is now the last hope when other treatments fail in leukemia and related diseases.

Three adults with chronic leukemia treated at the University of Pennsylvania have also had complete remissions, with no signs of disease; two of them have been well for more than two years, said Dr. David Porter. Four adults improved but did not have full remissions, and one was treated too recently to evaluate. A child improved and then relapsed. In two adults, the treatment did not work at all. The Pennsylvania researchers were presenting their results on Sunday and Monday in Atlanta at a meeting of the American Society of Hematology.

Despite the mixed results, cancer experts not involved with the research say it has tremendous promise, because even in this early phase of testing it has worked in seemingly hopeless cases. “I think this is a major breakthrough,” said Dr. Ivan Borrello, a cancer expert and associate professor of medicine at the Johns Hopkins University School of Medicine.

Dr. John Wagner, the director of pediatric blood and marrow transplantation at the University of Minnesota, called the Pennsylvania results “phenomenal” and said they were “what we’ve all been working and hoping for but not seeing to this extent.”

A major drug company, Novartis, is betting on the Pennsylvania team and has committed $20 million to building a research center on the university’s campus to bring the treatment to market.

Hervé Hoppenot, the president of Novartis Oncology, called the research “fantastic” and said it had the potential — if the early results held up — to revolutionize the treatment of leukemia and related blood cancers. Researchers say the same approach, reprogramming the patient’s immune system, may also eventually be used against tumors like breast and prostate cancer.

To perform the treatment, doctors remove millions of the patient’s T-cells — a type of white blood cell — and insert new genes that enable the T-cells to kill cancer cells. The technique employs a disabled form of H.I.V. because it is very good at carrying genetic material into T-cells. The new genes program the T-cells to attack B-cells, a normal part of the immune system that turn malignant in leukemia.

The altered T-cells — called chimeric antigen receptor cells — are then dripped back into the patient’s veins, and if all goes well they multiply and start destroying the cancer.

The T-cells home in on a protein called CD-19 that is found on the surface of most B-cells, whether they are healthy or malignant.

A sign that the treatment is working is that the patient becomes terribly ill, with raging fevers and chills — a reaction that oncologists call “shake and bake,” Dr. June said. Its medical name is cytokine-release syndrome, or cytokine storm, referring to the natural chemicals that pour out of cells in the immune system as they are being activated, causing fevers and other symptoms. The storm can also flood the lungs and cause perilous drops in blood pressure — effects that nearly killed Emma.

Steroids sometimes ease the reaction, but they did not help Emma. Her temperature hit 105. She wound up on a ventilator, unconscious and swollen almost beyond recognition, surrounded by friends and family who had come to say goodbye.

But at the 11th hour, a battery of blood tests gave the researchers a clue as to what might help save Emma: her level of one of the cytokines, interleukin-6 or IL-6, had shot up a thousandfold. Doctors had never seen such a spike before and thought it might be what was making her so sick.

Dr. June knew that a drug could lower IL-6 — his daughter takes it for rheumatoid arthritis. It had never been used for a crisis like Emma’s, but there was little to lose. Her oncologist, Dr. Stephan A. Grupp, ordered the drug. The response, he said, was “amazing.”

Within hours, Emma began to stabilize. She woke up a week later, on May 2, the day she turned 7; the intensive-care staff sang “Happy Birthday.”

Since then, the research team has used the same drug, tocilizumab, in several other patients.

In patients with lasting remissions after the treatment, the altered T-cells persist in the bloodstream, though in smaller numbers than when they were fighting the disease. Some patients have had the cells for years.

Dr. Michel Sadelain, who conducts similar studies at the Sloan-Kettering Institute, said: “These T-cells are living drugs. With a pill, you take it, it’s eliminated from your body and you have to take it again.” But T-cells, he said, “could potentially be given only once, maybe only once or twice or three times.”

The Pennsylvania researchers said they were surprised to find any big drug company interested in their work, because a new batch of T-cells must be created for each patient — a far cry from the familiar commercial strategy of developing products like Viagra or cholesterol medicines, in which millions of people take the same drug.