Sign Language Researchers Broaden Science Lexicon

Imagine trying to learn biology without ever using the word “organism.” Or studying to become a botanist when the only way of referring to photosynthesis is to spell the word out, letter by painstaking letter.

For deaf students, this game of scientific Password has long been the daily classroom and laboratory experience. Words like “organism” and “photosynthesis” — to say nothing of more obscure and harder-to-spell terms — have no single widely accepted equivalent in sign language. This means that deaf students and their teachers and interpreters must improvise, making it that much harder for the students to excel in science and pursue careers in it.

“Often times, it would involve a lot of finger-spelling and a lot of improvisation,” said Matthew Schwerin, a physicist with the Food and Drug Administration who is deaf, of his years in school. “For the majority of scientific terms,” Mr. Schwerin and his interpreter for the day would “try to find a correct sign for the term, and if nothing was pre-existing, we would come up with a sign that was agreeable with both parties.”

Now thanks to the Internet — particularly the boom in online video — resources for deaf students seeking science-related signs are easier to find and share. Crowdsourcing projects in both American Sign Language and British Sign Language are under way at several universities, enabling people who are deaf to coalesce around signs for commonly used terms.

This year, one of those resources, the Scottish Sensory Centre’s British Sign Language Glossary Project, added 116 new signs for physics and engineering terms, including signs for “light-year,”  (hold one hand up and spread the fingers downward for “light,” then bring both hands together in front of your chest and slowly move them apart for “year”), “mass” and “X-ray” (form an X with your index fingers, then, with the index finger on the right hand, point outward). 

The signs were developed by a team of researchers at the center, a division of the University of Edinburgh in Scotland that develops learning tools for students with visual and auditory impairments. The researchers spent more than a year soliciting ideas from deaf science workers, circulating lists of potential signs and ultimately gathering for “an intense weekend” of final voting, said Audrey Cameron, science adviser for the project. (Dr. Cameron is also deaf, and like all non-hearing people interviewed for this article, answered questions via e-mail.)

Whether the Scottish Sensory Centre’s signs will take hold among its audience remains to be seen. “Some will be adopted, and some will probably never be accepted,” Dr. Cameron said. “We’ll have to wait and see what happens.”

Ideally, the standardization of signs will make it easier for deaf students to keep pace with their hearing classmates during lectures. “I can only choose to look at one thing at a time,” said Mr. Schwerin of the F.D.A., recalling his science education, “and it often meant choosing between the interpreter, the blackboard/screen/material, or taking notes. It was like, pick one, and lose out on the others.”

The problem doesn’t end at graduation. In fact, it only intensifies as new discoveries add unfamiliar terms to the scientific lexicon. “I’ve had numerous meetings where I couldn’t participate properly because the interpreters were not able to understand the jargon and they did not know any scientific signs,” Dr. Cameron said.

One general complaint about efforts to standardize signs for technical terms is the idea that, much like spoken language, sign language should be allowed to develop organically rather than be dictated from above.

“Signs that are developed naturally — i.e., that are tested and refined in everyday conversation — are more likely to be accepted quickly by the community,” said Derek Braun, director of the molecular genetics laboratory at Gallaudet University in Washington, D.C., which he said was the first biological laboratory designed and administered by deaf scientists.

Since at least the 1970s, deaf scientists have tried to address the lack of uniformity by gathering common signs for scientific terms in printed manuals and on videotapes. The problem has always been getting deaf students and their interpreters to adopt them.

Often, at science conferences, “local interpreters that we never met before would often use different signs for the same terms, leading to confusion,” said Caroline Solomon, a biology professor at Gallaudet University who is deaf.

Read More..

Sign Language Researchers Broaden Science Lexicon

Imagine trying to learn biology without ever using the word “organism.” Or studying to become a botanist when the only way of referring to photosynthesis is to spell the word out, letter by painstaking letter.

For deaf students, this game of scientific Password has long been the daily classroom and laboratory experience. Words like “organism” and “photosynthesis” — to say nothing of more obscure and harder-to-spell terms — have no single widely accepted equivalent in sign language. This means that deaf students and their teachers and interpreters must improvise, making it that much harder for the students to excel in science and pursue careers in it.

“Often times, it would involve a lot of finger-spelling and a lot of improvisation,” said Matthew Schwerin, a physicist with the Food and Drug Administration who is deaf, of his years in school. “For the majority of scientific terms,” Mr. Schwerin and his interpreter for the day would “try to find a correct sign for the term, and if nothing was pre-existing, we would come up with a sign that was agreeable with both parties.”

Now thanks to the Internet — particularly the boom in online video — resources for deaf students seeking science-related signs are easier to find and share. Crowdsourcing projects in both American Sign Language and British Sign Language are under way at several universities, enabling people who are deaf to coalesce around signs for commonly used terms.

This year, one of those resources, the Scottish Sensory Centre’s British Sign Language Glossary Project, added 116 new signs for physics and engineering terms, including signs for “light-year,”  (hold one hand up and spread the fingers downward for “light,” then bring both hands together in front of your chest and slowly move them apart for “year”), “mass” and “X-ray” (form an X with your index fingers, then, with the index finger on the right hand, point outward). 

The signs were developed by a team of researchers at the center, a division of the University of Edinburgh in Scotland that develops learning tools for students with visual and auditory impairments. The researchers spent more than a year soliciting ideas from deaf science workers, circulating lists of potential signs and ultimately gathering for “an intense weekend” of final voting, said Audrey Cameron, science adviser for the project. (Dr. Cameron is also deaf, and like all non-hearing people interviewed for this article, answered questions via e-mail.)

Whether the Scottish Sensory Centre’s signs will take hold among its audience remains to be seen. “Some will be adopted, and some will probably never be accepted,” Dr. Cameron said. “We’ll have to wait and see what happens.”

Ideally, the standardization of signs will make it easier for deaf students to keep pace with their hearing classmates during lectures. “I can only choose to look at one thing at a time,” said Mr. Schwerin of the F.D.A., recalling his science education, “and it often meant choosing between the interpreter, the blackboard/screen/material, or taking notes. It was like, pick one, and lose out on the others.”

The problem doesn’t end at graduation. In fact, it only intensifies as new discoveries add unfamiliar terms to the scientific lexicon. “I’ve had numerous meetings where I couldn’t participate properly because the interpreters were not able to understand the jargon and they did not know any scientific signs,” Dr. Cameron said.

One general complaint about efforts to standardize signs for technical terms is the idea that, much like spoken language, sign language should be allowed to develop organically rather than be dictated from above.

“Signs that are developed naturally — i.e., that are tested and refined in everyday conversation — are more likely to be accepted quickly by the community,” said Derek Braun, director of the molecular genetics laboratory at Gallaudet University in Washington, D.C., which he said was the first biological laboratory designed and administered by deaf scientists.

Since at least the 1970s, deaf scientists have tried to address the lack of uniformity by gathering common signs for scientific terms in printed manuals and on videotapes. The problem has always been getting deaf students and their interpreters to adopt them.

Often, at science conferences, “local interpreters that we never met before would often use different signs for the same terms, leading to confusion,” said Caroline Solomon, a biology professor at Gallaudet University who is deaf.

Read More..

High-Speed Trades Hurt Investors, a Study Says

A top government economist has concluded that the high-speed trading firms that have come to dominate the nation’s financial markets are taking significant profits from traditional investors.

Mendoza College of Business

The economist Andrei Kirilenko’s findings are still being reviewed by peers and have encountered opposition.

Hiroko Masuike/The New York Times

Bart Chilton of the C.F.T.C. says high-speed traders are taking “some of the cream off the top.”

The chief economist at the Commodity Futures Trading Commission, Andrei Kirilenko, reports in a coming study that high-frequency traders make an average profit of as much as $5.05 each time they go up against small traders buying and selling one of the most widely used financial contracts.

The agency has not endorsed Mr. Kirilenko’s findings, which are still being reviewed by peers, and they are already encountering some resistance from academics. But Bart Chilton, one of five C.F.T.C. commissioners, said on Monday that “what the study shows is that high-frequency traders are really the new middleman in exchange trading, and they’re taking some of the cream off the top.”

Mr. Kirilenko’s work stands in contrast to several statements from government officials who have expressed uncertainty about whether high-speed traders are earning profits at the expense of ordinary investors.

The study comes as a council of the nation’s top financial regulators is showing increasing concern that the accelerating automation and speed of the financial markets may represent a threat both to other investors and to the stability of the financial system.

The Financial Stability Oversight Council, an organization formed after the recent financial crisis to deal with systemic risks, took up the issue at a meeting in November that was closed to the public, according to minutes that were released Monday.

The gathering of top regulators, including Treasury Secretary Timothy F. Geithner and Ben S. Bernanke, the Federal Reserve chairman, said in its annual report this summer that recent developments “could lead to unintended errors cascading through the financial system.” The C.F.T.C. is a member of the oversight council.

The issue of high-frequency trading has generated anxiety among investors in the stock market, where computerized trading first took hold. But the minutes from the oversight council, and the council’s annual report released this year, indicate that top regulators are viewing the automation of trading as a broader concern as high-speed traders move into an array of financial markets, including bond and foreign currency trading.

Mr. Kirilenko’s study focused on one corner of the financial markets that the C.F.T.C. oversees, contracts that are settled based on the future value of the Standard & Poor’s 500-stock index. He and his co-authors, professors at Princeton and the University of Washington, chose the contract because it is one of the most heavily traded financial assets in any market and is popular with a broad array of investors.

Using previously private data, Mr. Kirilenko’s team found that from August 2010 to August 2012, high-frequency trading firms were able to reliably capture profits by buying and selling futures contracts from several types of traditional investors.

The study notes that there are different types of high-frequency traders, some of which are more aggressive in initiating trades and some of which are passive, simply taking the other side of existing offers in the market.

The researchers found that more aggressive traders accounted for the largest share of trading volume and made the biggest profits. The most aggressive scored an average profit of $1.92 for every futures contract they traded with big institutional investors, and made an average $3.49 with a smaller, retail investor. Passive traders, on the other hand, saw a small loss on each contract traded with institutional investors, but they made a bigger profit against retail investors, of $5.05 a contract.

Large investors can trade thousands of contracts at once to bet on future shifts in the S.& P. 500 index. The average aggressive high-speed trader made a daily profit of $45,267 in a month in 2010 analyzed by the study.

Industry profits have been falling, however, as overall stock trading volume has dropped and the race for the latest technological advances has increased costs.

Ben Protess contributed reporting.

Read More..

Clinton Warns Syria Against Using Chemical Weapons

PRAGUE — Secretary of State Hillary Rodham Clinton on Monday warned President Bashar al-Assad of Syria not to use chemical weapons and said that the United States was prepared to act if he ignored the warning.

David W Cerny/Reuters

Secretary of State Hillary Clinton during a news conference in Prague on Monday.

Lynsey Addario for The New York Times

Syrian civilians fled from the village of Ras al-Ayn on Monday, after Syrian jets bombed the village.

“This is a red line for the United States,” Mrs. Clinton said. “I am not going to telegraph in any specifics what we would do in the event of credible evidence that the Assad regime has resorted to using chemical weapons against their own people. But suffice it to say we are certainly planning to take action if that eventuality were to occur.”

There have been signs in recent days of heightened activity at some of Syria’s chemical weapons sites, according to American and Israeli officials familiar with intelligence reports. Mrs. Clinton did not confirm the intelligence reports or say what sort of activity was occurring.

The Syrian Foreign Ministry, in a swift response, said the government “would not use chemical weapons, if it had them, against its own people under any circumstances.” The statement was reported on Syrian state television and on the Lebanese channel LBC.

Mrs. Clinton, who made her comments after meeting with Karel Schwarzenberg, the foreign minister of the Czech Republic, indicated that the two sides had discussed the situation in Syria, including the potential chemical weapons threat.

Mr. Schwarzenberg described the situation in Syria as “rather chaotic” and “highly dangerous.” He said that Czech troops who specialize in the detection of chemical weapons and decontamination were in Jordan training with forces there.

An American task force has been deployed to Jordan and has been helping the Jordanians deal with the escalating humanitarian crisis, including an exodus of more than 200,000 refugees from Syria to Jordan. The force is also planning how to respond, if necessary, to a chemical weapons threat.

Although Mrs. Clinton’s reference to a “red line” echoed a warning issued by President Obama in August, it was the most explicit warning from a ranking American official since reports of renewed chemical weapons activity began to surface in recent days.

Mrs. Clinton stopped in Prague on her way to Brussels for a meeting of NATO foreign ministers. A major topic of the NATO meeting is a Turkish request that the alliance deploy Patriot antimissile batteries in Turkey. The Turkish government is concerned about Syria’s ballistic missiles, which could carry chemical weapons, and it wants NATO to guard as many as 10 sites inside Turkey.

What exactly is happening at Syria’s chemical sites is unclear. One American official said Sunday that “the activity we are seeing suggests some potential chemical weapon preparation,” which goes beyond the mere movement of stockpiles among Syria’s several dozen known sites. But the official declined to offer more specifics.

Over the weekend, the activity in Syria prompted a series of urgent consultations among the Western nations, which have long been developing contingency plans to neutralize the chemical weapons, a task that the Pentagon estimates would require more than 75,000 troops. But there were no signs that any American action was imminent.

So far, Mr. Obama has been very cautious about intervening in Syria, declining to arm the opposition groups directly.

Anne Barnard contributed reporting from Beirut, Lebanon.

Read More..

App Maker Uber Hits Regulatory Snarl

Jack Atley for The New York Times

The Uber car-hiring app was introduced in Sydney last month.

WASHINGTON — Summoning a taxi or car service with your smartphone feels like the future. City governments around the world can agree on that. But many of them are proposing new rules that would run Uber, one of the most prominent ride-requesting apps, off the road.

James Best Jr./The New York Times

The battle between Uber and city governments underscores the tension between lawmakers and technology companies at a time when Web sites and mobile apps can outmaneuver old rules.

At a recent conference here, transportation regulators and car service operators from cities in the United States and Europe met to talk about how smartphone apps were changing the hire-a-car business. Some of these apps are integrated with dispatching systems run by the car companies, while others allow drivers to directly connect with passengers, phone to phone.

While the regulators discussed ways to clarify the legality of these apps, they also proposed guidelines that would effectively force Uber, a San Francisco start-up, to cease operations in the United States. Uber also faces new lawsuits filed by San Francisco cabdrivers and Chicago car service companies, and a $20,000 fine from the California Public Utilities Commission.

The battle between Uber and city governments underscores the tension between lawmakers and technology companies at a time when Web sites and mobile apps can outmaneuver old rules. Services like Uber, Airbnb and Craigslist can cut out the middleman and lead to more efficient markets. But regulators say they could also put consumers at risk.

Uber has rattled regulators in many cities with its unusual approach to expansion. It says that it first consults a transportation lawyer in a city on whether it is legal to operate there. When it comes to town, its employees contact local car service companies to discuss working with them; in cities where Uber works with cabs, employees put up fliers or approach drivers at airports and gas stations. Participating drivers get free iPhones that run Uber’s navigation software, which helps them find people nearby who are requesting rides with their smartphones.

The start-up, which has raised $50 million since 2010, generally does not consult transportation regulators before it starts rolling in each city. Because it is not an actual provider of rides, it says that it is not subject to such regulation. To date, this approach has generally worked for it in 18 cities, including San Francisco, Washington, New York, Chicago, Paris and Amsterdam.

Uber suffered its first serious setback in New York, where it was forced to cease its fledgling yellow cab operation in October because of what the city said were exclusive contracts with payment processors. But the company continues to work with luxury sedan companies and drivers there.

Matthew W. Daus, former chairman of New York’s taxi and limousine commission and current president of the International Association of Transportation Regulators, is one of Uber’s most vocal critics, saying the company isn’t above regulation. With the support of 15 city governments that formed a task force called the Smartphone Apps Committee, he wrote up the guidelines on laws that, if passed by the cities, would outlaw Uber’s operations.

In an interview, Mr. Daus, who practices law part-time with the firm Windels Marx Lane & Mittendorf, said that Uber was a “rogue” app, and that the company was behaving in an unauthorized, unusual and destructive way.

As an example, he pointed to Uber’s doubling of fares in New York after Hurricane Sandy in what the company calls surge pricing, a move that the start-up said was necessary to get more drivers on the storm-ravaged roads.

He said, “New Yorkers deserve an apology from Uber for price-gouging them during the hurricane.”

There are dozens of other car-summoning apps, some even more unconventional than Uber. Lyft, released in May by a start-up called Zimride, allows ordinary citizens to give rides to others in their own cars in return for “donations.” SideCar, another start-up, offers a similar service. Like Uber, these companies are also facing a $20,000 fine from the California Public Utilities Commission for operating without a license.

Regulators say new laws are required to protect consumers from being harmed by such apps. But Uber, aside from the hurricane troubles, is generally adored by customers who say they are willing to pay extra to summon a ride without much wait, especially in cities where cabs are scarce.

In Apple’s App Store, the Uber app has hundreds of five-star ratings. And when Washington tried to pass rules that would make Uber illegal, customers bombarded City Council members with thousands of e-mails in protest.

Uber’s 36-year-old co-founder and chief, Travis Kalanick, has a history of controversy. Scour, the file-sharing start-up he helped found, shut down after it was sued for $250 billion by media companies on complaints of copyright infringement.

He draws attention to Uber by framing it as a story of David vs. Goliath — a lean technology start-up revolutionizing a creaky business. He once referred to Cambridge, Mass., as “home to Harvard, M.I.T. and some of the most anticompetitive, corrupt transportation laws in the country.”

To Mr. Kalanick, the rules being proposed by Mr. Daus’s committee are a classic example of regulators trying to stifle innovation. He says those making the rules are more interested in protecting the taxi and limousine businesses than in helping consumers. And he says Uber’s strategy of marching into new cities without asking permission is necessary.

Read More..

Study Bolsters Link Between Routine Hits to Head and Long-Term Brain Disease

The growing evidence of a link between head trauma and long-term, degenerative brain disease was amplified in an extensive study of athletes, military veterans and others who absorbed repeated hits to the head, according to new findings published in the scientific journal Brain.

The study, which included brain samples taken posthumously from 85 people who had histories of repeated mild traumatic brain injury, added to the mounting body of research revealing the possible consequences of routine hits to the head in sports like football and hockey. The possibility that such mild head trauma could result in long-term cognitive impairment has come to vex sports officials, team doctors, athletes and parents in recent years.

Of the group of 85 people, 80 percent (68 men) — nearly all of whom played sports — showed evidence of chronic traumatic encephalopathy, or C.T.E., a degenerative and incurable disease whose symptoms can include memory loss, depression and dementia.

Among the group found to have C.T.E., 50 were football players, including 33 who played in the N.F.L. Among them were stars like Dave Duerson, Cookie Gilchrist and John Mackey. Many of the players were linemen and running backs, positions that tend to have more contact with opponents.

Six high school football players, nine college football players, seven pro boxers and four N.H.L. players, including Derek Boogaard, the former hockey enforcer who died from an accidental overdose of alcohol and painkillers, also showed signs of C.T.E. The study also included 21 veterans, most of whom were also athletes, who showed signs of C.T.E.

The study was conducted by investigators at the Boston University Center for the Study of Traumatic Encephalopathy and the Veterans Affairs Boston Healthcare System, in collaboration with the Sports Legacy Institute. It took four years to complete, included subjects 17 to 98 years old, and more than doubled the number of documented cases of C.T.E. The investigators also created a four-tiered system to classify degrees of C.T.E., hoping it would help doctors treat patients.

The volume of cases in the study “allows us to see the disease at all stages of severity and how it starts and spreads in the brain, which gives us an idea of the mechanism of the injury,” said Ann McKee, the main author of the study, who is a professor of neurology and pathology at Boston University School of Medicine and works at the V.A. Boston.

Those categorized as having Stage 1 of the disease had headaches and loss of attention and concentration, while those with Stage 2 also had depression, explosive behavior and short-term memory loss. Those with Stage 3 of C.T.E., including Duerson, a former All-Pro defensive back for the Chicago Bears who killed himself last year, had cognitive impairment and trouble with executive functions like planning and organizing. Those with Stage 4 had dementia, difficulty finding words and aggression.

Despite the breadth of the findings, the study, like others before it, did not prove definitively that head injuries sustained on the field caused C.T.E. To do that, doctors would need to identify the disease in living patients by using imaging equipment, blood tests or other techniques. Researchers have not been able to determine why some athletes who performed in the same conditions did not develop C.T.E.

The study also did not demonstrate what percentage of professional football players were likely to develop C.T.E. To do that, investigators would need to study the brains of players who do not develop C.T.E., and those are difficult to acquire because families of former players who do not exhibit symptoms are less likely to donate their brains to science.

“It’s a gambler’s game to try to predict what percentage of the population has this,” said Chris Nowinski, a co-author of the study and a co-director of the Center for the Study of Traumatic Encephalopathy at Boston University School of Medicine. “Many of the families donated the brains of their loved ones because they were symptomatic. Still, this is probably more widespread than we think.”

Researchers expected the details in the study to dispel doubts about the likelihood that many years of head trauma can lead to C.T.E. The growing connections between head trauma and contact sports, though, have led some nervous parents and coaches to assume that any concussion could lead to long-term impairment. Some doctors say that oversimplifies matters. Rather, the total amount of head trauma, including smaller subconcussive hits, as well as how they were treated, must be considered when evaluating whether an athlete is more at risk of developing a disease like C.T.E.

“All concussions are not created equal,” said Robert Cantu, a co-author of the study and a co-director of the encephalopathy center. “Parents have become paranoid about concussions and connecting the dots with C.T.E., and that’s wrong. The dots are really about total head trauma.”

Read More..

Study Bolsters Link Between Routine Hits to Head and Long-Term Brain Disease

The growing evidence of a link between head trauma and long-term, degenerative brain disease was amplified in an extensive study of athletes, military veterans and others who absorbed repeated hits to the head, according to new findings published in the scientific journal Brain.

The study, which included brain samples taken posthumously from 85 people who had histories of repeated mild traumatic brain injury, added to the mounting body of research revealing the possible consequences of routine hits to the head in sports like football and hockey. The possibility that such mild head trauma could result in long-term cognitive impairment has come to vex sports officials, team doctors, athletes and parents in recent years.

Of the group of 85 people, 80 percent (68 men) — nearly all of whom played sports — showed evidence of chronic traumatic encephalopathy, or C.T.E., a degenerative and incurable disease whose symptoms can include memory loss, depression and dementia.

Among the group found to have C.T.E., 50 were football players, including 33 who played in the N.F.L. Among them were stars like Dave Duerson, Cookie Gilchrist and John Mackey. Many of the players were linemen and running backs, positions that tend to have more contact with opponents.

Six high school football players, nine college football players, seven pro boxers and four N.H.L. players, including Derek Boogaard, the former hockey enforcer who died from an accidental overdose of alcohol and painkillers, also showed signs of C.T.E. The study also included 21 veterans, most of whom were also athletes, who showed signs of C.T.E.

The study was conducted by investigators at the Boston University Center for the Study of Traumatic Encephalopathy and the Veterans Affairs Boston Healthcare System, in collaboration with the Sports Legacy Institute. It took four years to complete, included subjects 17 to 98 years old, and more than doubled the number of documented cases of C.T.E. The investigators also created a four-tiered system to classify degrees of C.T.E., hoping it would help doctors treat patients.

The volume of cases in the study “allows us to see the disease at all stages of severity and how it starts and spreads in the brain, which gives us an idea of the mechanism of the injury,” said Ann McKee, the main author of the study, who is a professor of neurology and pathology at Boston University School of Medicine and works at the V.A. Boston.

Those categorized as having Stage 1 of the disease had headaches and loss of attention and concentration, while those with Stage 2 also had depression, explosive behavior and short-term memory loss. Those with Stage 3 of C.T.E., including Duerson, a former All-Pro defensive back for the Chicago Bears who killed himself last year, had cognitive impairment and trouble with executive functions like planning and organizing. Those with Stage 4 had dementia, difficulty finding words and aggression.

Despite the breadth of the findings, the study, like others before it, did not prove definitively that head injuries sustained on the field caused C.T.E. To do that, doctors would need to identify the disease in living patients by using imaging equipment, blood tests or other techniques. Researchers have not been able to determine why some athletes who performed in the same conditions did not develop C.T.E.

The study also did not demonstrate what percentage of professional football players were likely to develop C.T.E. To do that, investigators would need to study the brains of players who do not develop C.T.E., and those are difficult to acquire because families of former players who do not exhibit symptoms are less likely to donate their brains to science.

“It’s a gambler’s game to try to predict what percentage of the population has this,” said Chris Nowinski, a co-author of the study and a co-director of the Center for the Study of Traumatic Encephalopathy at Boston University School of Medicine. “Many of the families donated the brains of their loved ones because they were symptomatic. Still, this is probably more widespread than we think.”

Researchers expected the details in the study to dispel doubts about the likelihood that many years of head trauma can lead to C.T.E. The growing connections between head trauma and contact sports, though, have led some nervous parents and coaches to assume that any concussion could lead to long-term impairment. Some doctors say that oversimplifies matters. Rather, the total amount of head trauma, including smaller subconcussive hits, as well as how they were treated, must be considered when evaluating whether an athlete is more at risk of developing a disease like C.T.E.

“All concussions are not created equal,” said Robert Cantu, a co-author of the study and a co-director of the encephalopathy center. “Parents have become paranoid about concussions and connecting the dots with C.T.E., and that’s wrong. The dots are really about total head trauma.”

Read More..

App Maker Uber Hits Regulatory Snarl

Jack Atley for The New York Times

The Uber car-hiring app was introduced in Sydney last month.

WASHINGTON — Summoning a taxi or car service with your smartphone feels like the future. City governments around the world can agree on that. But many of them are proposing new rules that would run Uber, one of the most prominent ride-requesting apps, off the road.

James Best Jr./The New York Times

The battle between Uber and city governments underscores the tension between lawmakers and technology companies at a time when Web sites and mobile apps can outmaneuver old rules.

At a recent conference here, transportation regulators and car service operators from cities in the United States and Europe met to talk about how smartphone apps were changing the hire-a-car business. Some of these apps are integrated with dispatching systems run by the car companies, while others allow drivers to directly connect with passengers, phone to phone.

While the regulators discussed ways to clarify the legality of these apps, they also proposed guidelines that would effectively force Uber, a San Francisco start-up, to cease operations in the United States. Uber also faces new lawsuits filed by San Francisco cabdrivers and Chicago car service companies, and a $20,000 fine from the California Public Utilities Commission.

The battle between Uber and city governments underscores the tension between lawmakers and technology companies at a time when Web sites and mobile apps can outmaneuver old rules. Services like Uber, Airbnb and Craigslist can cut out the middleman and lead to more efficient markets. But regulators say they could also put consumers at risk.

Uber has rattled regulators in many cities with its unusual approach to expansion. It says that it first consults a transportation lawyer in a city on whether it is legal to operate there. When it comes to town, its employees contact local car service companies to discuss working with them; in cities where Uber works with cabs, employees put up fliers or approach drivers at airports and gas stations. Participating drivers get free iPhones that run Uber’s navigation software, which helps them find people nearby who are requesting rides with their smartphones.

The start-up, which has raised $50 million since 2010, generally does not consult transportation regulators before it starts rolling in each city. Because it is not an actual provider of rides, it says that it is not subject to such regulation. To date, this approach has generally worked for it in 18 cities, including San Francisco, Washington, New York, Chicago, Paris and Amsterdam.

Uber suffered its first serious setback in New York, where it was forced to cease its fledgling yellow cab operation in October because of what the city said were exclusive contracts with payment processors. But the company continues to work with luxury sedan companies and drivers there.

Matthew W. Daus, former chairman of New York’s taxi and limousine commission and current president of the International Association of Transportation Regulators, is one of Uber’s most vocal critics, saying the company isn’t above regulation. With the support of 15 city governments that formed a task force called the Smartphone Apps Committee, he wrote up the guidelines on laws that, if passed by the cities, would outlaw Uber’s operations.

In an interview, Mr. Daus, who practices law part-time with the firm Windels Marx Lane & Mittendorf, said that Uber was a “rogue” app, and that the company was behaving in an unauthorized, unusual and destructive way.

As an example, he pointed to Uber’s doubling of fares in New York after Hurricane Sandy in what the company calls surge pricing, a move that the start-up said was necessary to get more drivers on the storm-ravaged roads.

He said, “New Yorkers deserve an apology from Uber for price-gouging them during the hurricane.”

There are dozens of other car-summoning apps, some even more unconventional than Uber. Lyft, released in May by a start-up called Zimride, allows ordinary citizens to give rides to others in their own cars in return for “donations.” SideCar, another start-up, offers a similar service. Like Uber, these companies are also facing a $20,000 fine from the California Public Utilities Commission for operating without a license.

Regulators say new laws are required to protect consumers from being harmed by such apps. But Uber, aside from the hurricane troubles, is generally adored by customers who say they are willing to pay extra to summon a ride without much wait, especially in cities where cabs are scarce.

In Apple’s App Store, the Uber app has hundreds of five-star ratings. And when Washington tried to pass rules that would make Uber illegal, customers bombarded City Council members with thousands of e-mails in protest.

Uber’s 36-year-old co-founder and chief, Travis Kalanick, has a history of controversy. Scour, the file-sharing start-up he helped found, shut down after it was sued for $250 billion by media companies on complaints of copyright infringement.

He draws attention to Uber by framing it as a story of David vs. Goliath — a lean technology start-up revolutionizing a creaky business. He once referred to Cambridge, Mass., as “home to Harvard, M.I.T. and some of the most anticompetitive, corrupt transportation laws in the country.”

To Mr. Kalanick, the rules being proposed by Mr. Daus’s committee are a classic example of regulators trying to stifle innovation. He says those making the rules are more interested in protecting the taxi and limousine businesses than in helping consumers. And he says Uber’s strategy of marching into new cities without asking permission is necessary.

Read More..

IHT Rendezvous: Christmas Tree Controversy Fires Multicultural Belgium

LONDON — It’s that time of year again. As November turned to December, a work gang just arrived outside the front window to set up the neighbourhood Christmas tree and mark the approach of the annual season of peace and good will.

Meanwhile, across the Channel in Brussels, there is a distinct lack of good will this year as locals in the Belgium capital tangle over a controversial decision by the city fathers to replace the traditional pine tree with an abstract structure of illuminated cubes.

The 25-meter, or 82-foot, tree of light installed this year on the Grand Place, the main square in Brussels, has sparked a protest movement and an online petition, demanding respect for “values and traditions”, which has so far attracted 25,000 signatures.

Some are claiming, however, that the campaign amounts to a thinly veiled attack on multiculturalism in the capital of the European Union, with undertones of Islamophobia.

The controversy was sparked by remarks by Bianca Debaets, a city councilor from the Christian Democrat and Flemish Party, who claimed the Socialist-run municipality was pandering to the sensitivities of non-Christians by scrapping the traditional tree.

“What next?” she asked. “Will Easter eggs be banned from the city because they make us think of Easter?”

The municipality has defended its choice, saying it wanted to blend the modern and the traditional to show off the city’s annual winter fair. More traditional Christmas symbols would also be on display in the Grand Place, including a Nativity scene, officials said.

Ms. Debaets has since distanced herself from openly racist comments that have attached themselves to an otherwise innocent online protest movement, some of which claimed the city was bowing to pressure from its estimated one-in-five Muslim minority.

In online comments, Muslims ridiculed the claims and Semsettin Ugurlu, chairman of the Belgian Muslim Executive that represents the Muslim community, said his organization did not object to any kind of Christmas tree.

“We know we are living in a country with a Christian culture, we take no offense over a traditional Christmas tree,” the BBC quoted him as saying.

The organizer of the online protest petition, identified as Olivier, told Belgian television he was not a racist and merely wanted his children to enjoy the pleasure of seeing the traditional tree.

The wording of the petition, and some of the comments attached by signatories, nevertheless revealed a wider agenda. It said the scrapping of the traditional tree at the Grand Place followed a ban on Christmas trees at law courts, the suppression of religious symbols at school and a ban on pork at school canteens.

The Christmas tree controversy comes after two members of an Islamic list, who said they might one day seek a referendum on establishing Sharia law in Belgium, were elected last month as councilors in Flemish-speaking districts of the Brussels region.

That prompted its own online petition, sponsored by a far-right party, to have their grouping banned.

Their election embarrassed moderate Muslim organisations, one of which started its own petition rejecting Sharia law. The Belgian Muslim Executive also said it was inconceivable to most Muslims that Belgium would ever become a Muslim state.

Olivier Mangain, a center-right Francophone politician, meanwhile called for secularism to be written into the Belgian Constitution in order to prevent any religious or other group from undermining fundamental rights such as gender equality.

La Vie, a Christian weekly in neighboring France, commented: “In a country hit by economic crisis, in the grip of regional tensions, and now starting an annual battle over how to mark Christmas, this affair has once more sparked a debate over the identity of Belgium.”

Read More..

John McAfee Plays Hide-and-Seek in Belize

Photo Illustration by The New York Times

John McAfee, right, a pioneer in computer security who lives in Belize, is a “person of interest” in the murder of his neighbor. More Photos »

DANIEL GUERRERO promised during his campaign for mayor here to clean up San Pedro, the only town on this island, a 20-minute puddle jump from the mainland. But if he ever runs for re-election, don’t expect him to mention that vow.

“I meant clean up the trash, the traffic, that sort of thing,” he says. “I didn’t mean this.”

“This” is a full-blown international media frenzy and the kind of mess that no politician could have seen coming. It started on Nov. 11, the morning that Gregory Faull, a 52-year-old American, was found dead, lying face up in a pool of blood in his home. He had been shot in the head. His laptop and iPhone were missing. A 9-millimeter shell was found nearby.

What happened next turned this from a local crime story to worldwide news: The police announced that a “person of interest” in the investigation was a neighbor, John McAfee, a Silicon Valley legend who years ago earned millions from the computer virus-fighting software company that still bears his name.

A priapic 67-year-old, with an improbable mop of blond-highlighted hair and a rotating group of young girlfriends, Mr. McAfee quickly melted into the island’s lush green forest. Then, for Belizean authorities, the real embarrassment began.

Asserting his innocence, Mr. McAfee became a multiplatform cyberdissident, with a Twitter account, and a blog at whoismcafee.com with audio links, a comments section, photographs and a stream of invective against the government and the police of Belize. He has done interviews on podcasts, like the “Joe Rogan Experience,” and offered a $25,000 reward for information leading to the arrest of “the person or persons” who killed Mr. Faull. He has turned lamming it into a kind of high-tech performance art.

“I am asking all people of conscience to read this blog, especially the links in the ‘Background’ section,’ and see the ugly truth unfolding here,” he posted on Nov. 18. “Speak out. Write your congressmen. Write the prime minister. Do what you can.”

Before he went underground, Mr. McAfee led a noisy, opulent and increasingly stressful life here. He was known for the retinue of prostitutes who he says moved in and out of his house, and for employing armed guards, some of whom stood watch on the beach abutting his house. He also kept a pack of untethered dogs on his property who barked at and sometimes bit passers-by.

Two days before the murder, someone had poisoned a handful of those dogs. As it happens, Mr. Faull had complained about the animals, as well as the guards and the constant late-night inflow and outflow of taxis on the dirt path that runs behind his and Mr. McAfee’s homes — a path so tiny that it’s supposed to be off-limits to cars.

Mr. Faull had shown up at the town council office a few weeks ago with a letter decrying the din and the dogs, as well as Mr. McAfee’s guns and behavior. Nothing came of it.

“We were planning to meet with John McAfee and hand him the letter,” Mr. Guerrero said. “But it never happened. We were busy doing other work.”

In hindsight, that looks like a blunder. Mr. McAfee has since said on his blog that he had no choice but to flee because police and politicians in Belize are corrupt and eager to kill him. As proof, he has written at length about a late April raid that the country’s Gang Suppression Unit conducted at a property of his on the mainland, in a district called Orange Walk.

Some McAfee watchers have a different theory — namely, that he grew paranoid and perhaps psychotic after months of experimenting with and consuming MDPV, a psychoactive drug. These experiments were described in detail by Mr. McAfee himself, under the pseudonym “Stuffmonger” in a forum on Bluelight, a Web site popular with drug hobbyists.

So, here’s one hypothesis: Rich man doses himself to madness while seeking sexual bliss through pharmacology. Then shoots neighbor in a rage. Case closed, right? Ah, but those Bluelight posts were a ruse, Mr. McAfee would later blog, just one of the many pranks he has perpetrated over the years — part of a bet with a friend to see if he could create Bluelight’s largest-ever thread.

Read More..