India Ink: The Mumbai/New York Photo Project: On the Sidewalks

This is the second installment in Nisha Sondhe’s Mumbai/New York photography project. View part one, “On the Waterfront,” here. Read more about the project here.  

Mumbai and New York are both crowded cities teeming with traffic – not just in the streets, but on the sidewalks, too. The New York City Transportation Department estimates that the city has 12,750 miles of sidewalk, which are becoming more congested each year.

A city government survey calculating the “pedestrian volume index” suggested that since 2007, the number of people walking on New York’s sidewalks had risen over 10 percent by May 2011. That’s a good thing: the city government is attempting to encourage the walking habit by widening streets, adding more benches and improving cleanliness.

Mumbai is also already a very pedestrian-heavy city. The pavements of Mumbai host about 15 million walking trips each day, with about 55 percent of Mumbai residents walking some distance to work.

However, dilapidated sidewalks and an ever-increasing volume of cars mean that safety is a pressing issue in the city. According to a study, 78 percent of Mumbai’s road fatalities involve pedestrians. The Walking Project, an initiative by a group of Mumbai activists, is advocating for better provisions for pedestrians in the city.

To the uninitiated, it may seem that the sidewalks of Mumbai are meant for almost anything except for walking. In fact, they play an integral role in the city’s vibrant informal economy. You can find a barber for your morning shave or someone to mend your shoes, clean your ears or sharpen your knives. A recent study estimated that there were nearly 250,000 street vendors in the city.

New York City’s sidewalks are also littered with vendors selling everything from hot dogs to fake designer handbags and cheap electronics. In some cases, it seems New York City takes its inspiration from Mumbai. Thirukumar Kandasamy, also known as “the Dosa Man,” runs one of New York’s most well-known street stalls and claims to be listed in the guidebooks of 42 countries. The Street Vendor Project estimates that New York City has about 20,000 street vendors.

In both cities, the sidewalk often becomes an important spot for the city’s artistic expression. Along the many of the sidewalks of New York City are interesting murals, art installations and often-irreverent graffiti. New York City’s Transportation Department encourages urban art projects, collaborating with different artists and groups to brighten up the city.

Meanwhile, artistic graffiti is slowly gaining popularity in Mumbai. The Wall Project, started in 2009 with the blessing of the Mumbai Municipal Corporation, saw over 400 Mumbai resident volunteers painting the 2.4-kilometer (1.5-mile) stretch that spans Tulsi Pipe Road. The stretch of wall along a busy road was once the city’s most derelict.

In both of these cities, a walk down the street is never a dull affair.

Look for the next Mumbai/New York photos on Feb. 5.

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Media Decoder: News Outlets Take to Washington for Inauguration Coverage

If he squints hard enough, President Obama will be able to see CNN from his perch on the inaugural podium on Monday.

The cable news channel has set up an elaborate studio on the National Mall — one of the four locations where its anchors will be leading coverage of Mr. Obama’s second inaugural celebration.

“The goal is to put our anchors in the middle of all the activity,” said Sam Feist, CNN’s Washington bureau chief. So in the morning, Wolf Blitzer will start out by the Capitol building and Anderson Cooper by the Mall, moving to new spots along the parade route in the afternoon. Other anchors will be at the inaugural balls at night.

The coverage might seem more subdued on other major television networks, reflecting the fact that there is generally less enthusiasm for presidential inaugurations the second time around. Still, the ceremony and the spectacle that accompanies it will take over the networks and news channels beginning with their morning shows, some of which are relocating to Washington for the day.

CBS has built a studio on the Mall beside CNN’s. Its one-year-old morning show, “CBS This Morning,” will be broadcast from there and expand to three hours for the day. NBC’s “Today” show will have all of its hosts in Washington, as well.

ABC’s “Good Morning America” is doing it a bit differently, sending George Stephanopoulos and Josh Elliott to Washington and having the show’s other hosts stay in New York.

The bulk of the festivities will be anchored by the same correspondents who handled election night for their networks. There has been a last-minute change at PBS, though: Judy Woodruff is away from Washington because of a family illness, a spokeswoman said, so the senior correspondent Jeffrey Brown will anchor with Gwen Ifill, instead.

Most Americans will watch the inauguration on television, just as they did in 2009, the first time Mr. Obama was inaugurated. But there will also be a panoply of Web sites live-streaming the event, including that of the Presidential Inauguration Committee.

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Well: A Check on Physicals

“Go Beyond Your Father’s Annual Physical. Live Longer, Feel Better”

This sales pitch for the Princeton Longevity Center’s “comprehensive exam” promises, for $5,300, to take “your health beyond the annual physical.” But it is far from certain whether this all-day checkup, and others less inclusive, make a meaningful difference to health or merely provide reassurance to the worried well.

Among physicians, researchers and insurers, there is an ongoing debate as to whether regular checkups really reduce the chances of becoming seriously ill or dying of an illness that would have been treatable had it been detected sooner.

No one questions the importance of regular exams for well babies, children and pregnant women, and the protective value of specific exams, like a Pap smear for sexually active women and a colonoscopy for people over 50. But arguments against the annual physical for all adults have been fueled by a growing number of studies that failed to find a medical benefit.

Some experts note that when something seemingly abnormal is picked up during a routine exam, the result is psychological distress for the patient, further testing that may do more harm than good, and increased medical expenses.

“Part of the problem of looking for abnormalities in perfectly well people is that rather a lot of us have them,” Dr. Margaret McCartney, a Scottish physician, wrote in The Daily Mail, a British newspaper. “Most of them won’t do us any harm.”

She cited the medical saga of Brian Mulroney, former prime minister of Canada. A CT scan performed as part of a checkup in 2005 revealed two small lumps in Mr. Mulroney’s lungs. Following surgery, he developed an inflamed pancreas, which landed him in intensive care. He spent six weeks in the hospital, then was readmitted a month later for removal of a cyst on his pancreas caused by the inflammation.

The lumps on his lungs, by the way, were benign. But what if, you may ask, Mr. Mulroney’s lumps had been cancer? Might not the discovery during a routine exam have saved his life?

Logic notwithstanding, the question of benefits versus risks from routine exams can be answered only by well-designed scientific research.

Defining the value of a routine checkup — determining who should get one and how often — is especially important now, because next year the Affordable Care Act will add some 30 million people to the roster of the medically insured, many of whom will be eligible for government-mandated preventive care through an annual exam.

Dr. Ateev Mehrotra of the University of Pittsburgh School of Medicine, who directed a study of annual physicals in 2007, reported that an estimated 44.4 million adults in the United States undergo preventive exams each year. He concluded that if every adult were to receive such an exam, the health care system would be saddled with 145 million more visits every year, consuming 41 percent of all the time primary care doctors spend with patients.

There is already a shortage of such doctors and not nearly enough other health professionals — physician assistants and nurse practitioners — to meet future needs. If you think the wait to see your doctor is too long now, you may want to stock up on some epic novels to keep you occupied in the waiting room in the future.

Few would challenge the axiom that an ounce of prevention is worth a pound of cure. Lacking incontrovertible evidence for the annual physical, this logic has long been used to justify it:

¶ If a thorough exam and conversation about your well-being alerts your doctor to a health problem that is best addressed sooner rather than later, isn’t that better than waiting until the problem becomes too troublesome to ignore?

¶ What if you have a potentially fatal ailment, like heart disease or cancer, that may otherwise be undetected until it is well advanced or incurable?

¶ And wouldn’t it help to uncover risk factors like elevated blood sugar or high cholesterol that could prevent an incipient ailment if they are reversed before causing irreparable damage?

Even if there is no direct medical benefit, many doctors say that having their patients visit once a year helps to maintain a meaningful relationship and alert doctors to changes in patients’ lives that could affect health. It is also an opportunity to give patients needed immunizations and to remind them to get their eyes, teeth and skin checked.

But the long-sacrosanct recommendation that everyone should have an annual physical was challenged yet again recently by researchers at the Nordic Cochrane Center in Copenhagen.

The research team, led by Dr. Lasse T. Krogsboll, analyzed the findings of 14 scientifically designed clinical trials of routine checkups that followed participants for up to 22 years. The team found no benefit to the risk of death or serious illness among seemingly healthy people who had general checkups, compared with people who did not. Their findings were published in November in BMJ (formerly The British Medical Journal).

In introducing their analysis, the Danish team noted that routine exams consist of “combinations of screening tests, few of which have been adequately studied in randomized trials.” Among possible harms from health checks, they listed “overdiagnosis, overtreatment, distress or injury from invasive follow-up tests, distress due to false positive test results, false reassurance due to false negative test results, adverse psychosocial effects due to labeling, and difficulties with getting insurance.”

Furthermore, they wrote, “general health checks are likely to be expensive and may result in lost opportunities to improve other areas of health care.”

In summarizing their results, the team said, “We did not find an effect on total or cause-specific mortality from general health checks in adult populations unselected for risk factors or disease. For the causes of death most likely to be influenced by health checks, cardiovascular mortality and cancer mortality, there were no reductions either.”

What, then, should people do to monitor their health?

Whenever you see your doctor, for any reason, make sure your blood pressure is checked. If a year or more has elapsed since your last blood test, get a new one.

Keep immunizations up to date, and get the screening tests specifically recommended based on your age, gender and known risk factors, including your family and personal medical history.

And if you develop a symptom, like unexplained pain, shortness of breath, digestive problems, a lump, a skin lesion that doesn’t heal, or unusual fatigue or depression, consult your doctor without delay. Seek further help if the initial diagnosis and treatment fails to bring relief.

Read More..

Well: A Check on Physicals

“Go Beyond Your Father’s Annual Physical. Live Longer, Feel Better”

This sales pitch for the Princeton Longevity Center’s “comprehensive exam” promises, for $5,300, to take “your health beyond the annual physical.” But it is far from certain whether this all-day checkup, and others less inclusive, make a meaningful difference to health or merely provide reassurance to the worried well.

Among physicians, researchers and insurers, there is an ongoing debate as to whether regular checkups really reduce the chances of becoming seriously ill or dying of an illness that would have been treatable had it been detected sooner.

No one questions the importance of regular exams for well babies, children and pregnant women, and the protective value of specific exams, like a Pap smear for sexually active women and a colonoscopy for people over 50. But arguments against the annual physical for all adults have been fueled by a growing number of studies that failed to find a medical benefit.

Some experts note that when something seemingly abnormal is picked up during a routine exam, the result is psychological distress for the patient, further testing that may do more harm than good, and increased medical expenses.

“Part of the problem of looking for abnormalities in perfectly well people is that rather a lot of us have them,” Dr. Margaret McCartney, a Scottish physician, wrote in The Daily Mail, a British newspaper. “Most of them won’t do us any harm.”

She cited the medical saga of Brian Mulroney, former prime minister of Canada. A CT scan performed as part of a checkup in 2005 revealed two small lumps in Mr. Mulroney’s lungs. Following surgery, he developed an inflamed pancreas, which landed him in intensive care. He spent six weeks in the hospital, then was readmitted a month later for removal of a cyst on his pancreas caused by the inflammation.

The lumps on his lungs, by the way, were benign. But what if, you may ask, Mr. Mulroney’s lumps had been cancer? Might not the discovery during a routine exam have saved his life?

Logic notwithstanding, the question of benefits versus risks from routine exams can be answered only by well-designed scientific research.

Defining the value of a routine checkup — determining who should get one and how often — is especially important now, because next year the Affordable Care Act will add some 30 million people to the roster of the medically insured, many of whom will be eligible for government-mandated preventive care through an annual exam.

Dr. Ateev Mehrotra of the University of Pittsburgh School of Medicine, who directed a study of annual physicals in 2007, reported that an estimated 44.4 million adults in the United States undergo preventive exams each year. He concluded that if every adult were to receive such an exam, the health care system would be saddled with 145 million more visits every year, consuming 41 percent of all the time primary care doctors spend with patients.

There is already a shortage of such doctors and not nearly enough other health professionals — physician assistants and nurse practitioners — to meet future needs. If you think the wait to see your doctor is too long now, you may want to stock up on some epic novels to keep you occupied in the waiting room in the future.

Few would challenge the axiom that an ounce of prevention is worth a pound of cure. Lacking incontrovertible evidence for the annual physical, this logic has long been used to justify it:

¶ If a thorough exam and conversation about your well-being alerts your doctor to a health problem that is best addressed sooner rather than later, isn’t that better than waiting until the problem becomes too troublesome to ignore?

¶ What if you have a potentially fatal ailment, like heart disease or cancer, that may otherwise be undetected until it is well advanced or incurable?

¶ And wouldn’t it help to uncover risk factors like elevated blood sugar or high cholesterol that could prevent an incipient ailment if they are reversed before causing irreparable damage?

Even if there is no direct medical benefit, many doctors say that having their patients visit once a year helps to maintain a meaningful relationship and alert doctors to changes in patients’ lives that could affect health. It is also an opportunity to give patients needed immunizations and to remind them to get their eyes, teeth and skin checked.

But the long-sacrosanct recommendation that everyone should have an annual physical was challenged yet again recently by researchers at the Nordic Cochrane Center in Copenhagen.

The research team, led by Dr. Lasse T. Krogsboll, analyzed the findings of 14 scientifically designed clinical trials of routine checkups that followed participants for up to 22 years. The team found no benefit to the risk of death or serious illness among seemingly healthy people who had general checkups, compared with people who did not. Their findings were published in November in BMJ (formerly The British Medical Journal).

In introducing their analysis, the Danish team noted that routine exams consist of “combinations of screening tests, few of which have been adequately studied in randomized trials.” Among possible harms from health checks, they listed “overdiagnosis, overtreatment, distress or injury from invasive follow-up tests, distress due to false positive test results, false reassurance due to false negative test results, adverse psychosocial effects due to labeling, and difficulties with getting insurance.”

Furthermore, they wrote, “general health checks are likely to be expensive and may result in lost opportunities to improve other areas of health care.”

In summarizing their results, the team said, “We did not find an effect on total or cause-specific mortality from general health checks in adult populations unselected for risk factors or disease. For the causes of death most likely to be influenced by health checks, cardiovascular mortality and cancer mortality, there were no reductions either.”

What, then, should people do to monitor their health?

Whenever you see your doctor, for any reason, make sure your blood pressure is checked. If a year or more has elapsed since your last blood test, get a new one.

Keep immunizations up to date, and get the screening tests specifically recommended based on your age, gender and known risk factors, including your family and personal medical history.

And if you develop a symptom, like unexplained pain, shortness of breath, digestive problems, a lump, a skin lesion that doesn’t heal, or unusual fatigue or depression, consult your doctor without delay. Seek further help if the initial diagnosis and treatment fails to bring relief.

Read More..

How M.I.T. Ensnared a Hacker, Bucking a Freewheeling Culture

Months earlier, the mysterious visitor had used the school’s computer network to begin copying millions of research articles belonging to Jstor, the nonprofit organization that sells subscription access to universities.

The visitor was clever — switching identifications to avoid being blocked by M.I.T.’s security system — but eventually the university believed it had shut down the intrusion, then spent weeks reassuring furious officials at Jstor that the downloading had been stopped.

However, on Jan. 3, 2011, according to internal M.I.T. documents obtained by The New York Times, the university was informed that the intruder was back — this time downloading documents very slowly, with a new method of access, so as not to alert the university’s security experts.

“The user was now not using any of the typical methods to access MITnet to avoid all usual methods of being disabled,” concluded Mike Halsall, a senior security analyst at M.I.T., referring to the university’s computer network.

What the university officials did not know at the time was that the intruder was Aaron Swartz, one of the shining lights of the technology world and a leading advocate for open access to information, with a fellowship down the road at Harvard.

Mr. Swartz’s actions presented M.I.T. with a crucial choice: the university could try to plug the weak spot in its network or it could try to catch the hacker, then unknown.

The decision — to treat the downloading as a continuing crime to be investigated rather than a security threat that had been stopped — led to a two-day cat-and-mouse game with Mr. Swartz and, ultimately, to charges of computer and wire fraud. Mr. Swartz, 26, who faced a potentially lengthy prison term and whose trial was to begin in April, was found dead of an apparent suicide in his Brooklyn apartment on Jan. 11.

Mr. Swartz’s supporters called M.I.T.’s decision a striking step for an institution that prides itself on operating an open computer network and open campus — the home of a freewheeling programming culture. M.I.T.’s defenders viewed the intrusion as a computer crime that needed to be taken seriously.

M.I.T. declined to confirm any of these details or comment on its actions during the investigation. The university’s president, L. Rafael Reif, said last week, “It pains me to think that M.I.T. played any role in a series of events that have ended in tragedy.” He appointed a professor, Hal Abelson, to analyze M.I.T.’s conduct in the investigation. To comment now, a spokeswoman for the university said, would be “to get ahead of that investigation.”

Early on Jan. 4, at 8:08 a.m., according to Mr. Halsall’s detailed internal timeline of the events, a security expert was able to locate that new method of access precisely — the wiring in a network closet in the basement of Building 16, a nondescript rectangular structure full of classrooms and labs that, like many buildings on campus, is kept unlocked.

In the closet, Mr. Halsall wrote, there was a netbook, or small portable computer, “hidden under a box,” connected to an external hard drive that was receiving the downloaded documents.

At 9:44 a.m. the M.I.T. police were called in; by 10:30 a.m., the Cambridge police were en route, and by 11 a.m., Michael Pickett, a Secret Service agent and expert on computer crime, was on the scene. On his recommendation, a surveillance camera was installed in the closet and a second laptop was connected to the network switch to track the traffic.

There may have been a reason for the university’s response. According to the timeline, the tech team detected brief activity from China on the netbook — something that occurs all the time but still represents potential trouble.

E-mails among M.I.T. officials that Tuesday in January 2011 highlight the pressures university officials felt over a problem they thought they had solved. Ann J. Wolpert, the director of libraries, wrote to Ellen Finnie Duranceau, the official who was receiving Jstor’s complaints: “Has there ever been a situation similar to this when we brought in campus police? The magnitude, systematic and careful nature of the abuses could be construed as approaching criminal action. Certainly, that’s how Jstor views it.”

Some of Mr. Swartz’s defenders argue that collecting and providing evidence to the government without a warrant may have violated federal and state wiretapping statutes.

John Schwartz contributed reporting.

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Insurgents Attack Kabul Traffic Police

Five insurgents attacked the headquarters of the Kabul traffic police early Monday morning, setting off a huge explosion near the entrance to the compound and storming the building.

Two insurgents were shot during an initial gun battle before 6 a.m., the police said, and at least one traffic police officer was killed. Another traffic officer wounded in the firefight managed to call for help from his cellphone, according to a police official.

Explosions and gunfire continued to ring out from the compound, where a battery of Afghan security forces assembled to defend the lightly armed traffic police. From the street, police officers could be seen firing on insurgents from the rooftop of the facility’s main building.

The Taliban claimed responsibility for the attack, the second one it has carried out in less than a week.

“Our target was a special police training unit where foreign instructors and trainers train,” said a Taliban spokesman, Zabiullah Mujahid. “We inflicted heavy casualties to the enemy so far and that is a part of our routine operations against the enemy.”

On Wednesday, heavily armed bombers blew up the gate to an Afghan intelligence facility, killing at least one security agent and injuring numerous civilians. The consecutive attacks have rattled the relative security Kabul has experienced compared with other areas of the country.

Habib Zohori contributed reporting.

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The Boss: New Leaders Inc. C.E.O. on Giving Children a Chance

I AM the youngest of 10 children in my family, and the only one born in the United States. My father was a municipal judge who fled Haiti during the Duvalier regime. He and my mother settled in the Bedford-Stuyvesant area of Brooklyn, but could not initially afford to bring over my four brothers and five sisters, who stayed in Haiti with relatives.

Jean S. Desravines is the chief executive of New Leaders Inc. in New York.

AGE 41

FAVORITE PASTIMES Karate and taekwondo

MEMORABLE BOOK "How Children Succeed: Grit, Curiosity and the Hidden Power of Character," by Paul Tough

Since he did not speak English fluently, my father worked as a janitor and had a second job as a hospital security guard. He later took a third job driving a taxi at night to pay for my tuition at Nazareth Regional High School, a Roman Catholic school in Brooklyn. My parents were determined that I was going to get a good education, and wanted to keep me away from local troubles, which did claim two of my childhood friends.

Working so many jobs overwhelmed my father. He had a heart attack and died at age 59 behind the wheel of his taxi. My mother found it difficult to cope without my father and moved back to Haiti in 1989 with two of my siblings. I thought I would have to leave school because I had no money for tuition, but Nazareth agreed to pay my way.

I wound up sleeping in my car for almost three months, showering at school after my track team’s practice. I also held down two jobs, both in retailing, and one of my sisters and I rented a basement apartment in East Flatbush.

After graduating from high school in 1990, I attended St. Francis College in Brooklyn, on athletic and academic scholarships. I worked first at the New York City Board of Education, where H. Carl McCall was president, then in his office after he became New York State comptroller. I later worked in the office of Ruth Messinger, then the Manhattan borough president.

I broadened my nonprofit organization experience at the Faith Center for Community Development while earning my master’s of public administration at New York University. I married my high school sweetheart, Melissa, and we now have two children.

In 2001, I began to work toward my original goal — improving educational opportunities for children — and joined the city’s Department of Education. I was later recruited under the new administration of Mayor Michael R. Bloomberg to help start a program as part of his Children First reforms.

In 2003, I became the Department of Education’s executive director for parent and community engagement, and, two years later, senior counselor to Joel I. Klein, then the school chancellor. He taught me a great deal about leadership and how to change the education system. But I began to realize public education could not be transformed without great principals who function like C.E.O.’s of their schools.

So in 2006 I returned to the nonprofit world, to New Leaders, a national organization founded in 2000 to recruit and develop leaders to turn around low-performing public schools. Initially, I managed city partnerships and expanded our program in areas like New Orleans and Charlotte, N.C.

In 2011, I became C.E.O., and revamped our program to produce even stronger student achievement results, streamlined our costs, diversified funding sources and forged new partnerships. We have an annual budget of $31.5 million, which comes from foundations, businesses, individuals and government grants, and a staff of about 200 people at a dozen locations.

We have a new partnership with Pearson Education to provide greater learning opportunities to public school principals. The goal of these efforts is to have a great principal in each of our nation’s public schools — to make sure that, just as I did, all kids get a chance at success.

As told to Elizabeth Olson.

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Well: Holly the Cat's Incredible Journey

Nobody knows how it happened: an indoor housecat who got lost on a family excursion managing, after two months and about 200 miles, to return to her hometown.

Even scientists are baffled by how Holly, a 4-year-old tortoiseshell who in early November became separated from Jacob and Bonnie Richter at an R.V. rally in Daytona Beach, Fla., appeared on New Year’s Eve — staggering, weak and emaciated — in a backyard about a mile from the Richter’s house in West Palm Beach.

“Are you sure it’s the same cat?” wondered John Bradshaw, director of the University of Bristol’s Anthrozoology Institute. In other cases, he has suspected, “the cats are just strays, and the people have got kind of a mental justification for expecting it to be the same cat.”

But Holly not only had distinctive black-and-brown harlequin patterns on her fur, but also an implanted microchip to identify her.

“I really believe these stories, but they’re just hard to explain,” said Marc Bekoff, a behavioral ecologist at the University of Colorado. “Maybe being street-smart, maybe reading animal cues, maybe being able to read cars, maybe being a good hunter. I have no data for this.”

There is, in fact, little scientific dogma on cat navigation. Migratory animals like birds, turtles and insects have been studied more closely, and use magnetic fields, olfactory cues, or orientation by the sun.

Scientists say it is more common, although still rare, to hear of dogs returning home, perhaps suggesting, Dr. Bradshaw said, that they have inherited wolves’ ability to navigate using magnetic clues. But it’s also possible that dogs get taken on more family trips, and that lost dogs are more easily noticed or helped by people along the way.

Cats navigate well around familiar landscapes, memorizing locations by sight and smell, and easily figuring out shortcuts, Dr. Bradshaw said.

Strange, faraway locations would seem problematic, although he and Patrick Bateson, a behavioral biologist at Cambridge University, say that cats can sense smells across long distances. “Let’s say they associate the smell of pine with wind coming from the north, so they move in a southerly direction,” Dr. Bateson said.

Peter Borchelt, a New York animal behaviorist, wondered if Holly followed the Florida coast by sight or sound, tracking Interstate 95 and deciding to “keep that to the right and keep the ocean to the left.”

But, he said, “nobody’s going to do an experiment and take a bunch of cats in different directions and see which ones get home.”

The closest, said Roger Tabor, a British cat biologist, may have been a 1954 study in Germany which cats placed in a covered circular maze with exits every 15 degrees most often exited in the direction of their homes, but more reliably if their homes were less than five kilometers away.

New research by the National Geographic and University of Georgia’s Kitty Cams Project, using video footage from 55 pet cats wearing video cameras on their collars, suggests cat behavior is exceedingly complex.

For example, the Kitty Cams study found that four of the cats were two-timing their owners, visiting other homes for food and affection. Not every cat, it seems, shares Holly’s loyalty.

KittyCams also showed most of the cats engaging in risky behavior, including crossing roads and “eating and drinking substances away from home,” risks Holly undoubtedly experienced and seems lucky to have survived.

But there have been other cats who made unexpected comebacks.

“It’s actually happened to me,” said Jackson Galaxy, a cat behaviorist who hosts “My Cat From Hell” on Animal Planet. While living in Boulder, Colo., he moved across town, whereupon his indoor cat, Rabbi, fled and appeared 10 days later at the previous house, “walking five miles through an area he had never been before,” Mr. Galaxy said.

Professor Tabor cited longer-distance reports he considered credible: Murka, a tortoiseshell in Russia, traveling about 325 miles home to Moscow from her owner’s mother’s house in Voronezh in 1989; Ninja, who returned to Farmington, Utah, in 1997, a year after her family moved from there to Mill Creek, Wash.; and Howie, an indoor Persian cat in Australia who in 1978 ran away from relatives his vacationing family left him with and eventually traveled 1,000 miles to his family’s home.

Professor Tabor also said a Siamese in the English village of Black Notley repeatedly hopped a train, disembarked at White Notley, and walked several miles back to Black Notley.

Still, explaining such journeys is not black and white.

In the Florida case, one glimpse through the factual fog comes on the little cat’s feet. While Dr. Bradshaw speculated Holly might have gotten a lift, perhaps sneaking under the hood of a truck heading down I-95, her paws suggest she was not driven all the way, nor did Holly go lightly.

“Her pads on her feet were bleeding,” Ms. Richter said. “Her claws are worn weird. The front ones are really sharp, the back ones worn down to nothing.”

Scientists say that is consistent with a long walk, since back feet provide propulsion, while front claws engage in activities like tearing. The Richters also said Holly had gone from 13.5 to 7 pounds.

Holly hardly seemed an adventurous wanderer, though her background might have given her a genetic advantage. Her mother was a feral cat roaming the Richters’ mobile home park, and Holly was born inside somebody’s air-conditioner, Ms. Richter said. When, at about six weeks old, Holly padded into their carport and jumped into the lap of Mr. Richter’s mother, there were “scars on her belly from when the air conditioner was turned on,” Ms. Richter said.

Scientists say that such early experience was too brief to explain how Holly might have been comfortable in the wild — after all, she spent most of her life as an indoor cat, except for occasionally running outside to chase lizards. But it might imply innate personality traits like nimbleness or toughness.

“You’ve got these real variations in temperament,” Dr. Bekoff said. “Fish can by shy or bold; there seem to be shy and bold spiders. This cat, it could be she has the personality of a survivor.”

He said being an indoor cat would not extinguish survivalist behaviors, like hunting mice or being aware of the sun’s orientation.

The Richters — Bonnie, 63, a retired nurse, and Jacob, 70, a retired airline mechanics’ supervisor and accomplished bowler — began traveling with Holly only last year, and she easily tolerated a hotel, a cabin or the R.V.

But during the Good Sam R.V. Rally in Daytona, when they were camping near the speedway with 3,000 other motor homes, Holly bolted when Ms. Richter’s mother opened the door one night. Fireworks the next day may have further spooked her, and, after searching for days, alerting animal agencies and posting fliers, the Richters returned home catless.

Two weeks later, an animal rescue worker called the Richters to say a cat resembling Holly had been spotted eating behind the Daytona franchise of Hooters, where employees put out food for feral cats.

Then, on New Year’s Eve, Barb Mazzola, a 52-year-old university executive assistant, noticed a cat “barely standing” in her backyard in West Palm Beach, struggling even to meow. Over six days, Ms. Mazzola and her children cared for the cat, putting out food, including special milk for cats, and eventually the cat came inside.

They named her Cosette after the orphan in Les Misérables, and took her to a veterinarian, Dr. Sara Beg at Paws2Help. Dr. Beg said the cat was underweight and dehydrated, had “back claws and nail beds worn down, probably from all that walking on pavement,” but was “bright and alert” and had no parasites, heartworm or viruses. “She was hesitant and scared around people she didn’t know, so I don’t think she went up to people and got a lift,” Dr. Beg said. “I think she made the journey on her own.”

At Paws2Help, Ms. Mazzola said, “I almost didn’t want to ask, because I wanted to keep her, but I said, ‘Just check and make sure she doesn’t have a microchip.’” When told the cat did, “I just cried.”

The Richters cried, too upon seeing Holly, who instantly relaxed when placed on Mr. Richter’s shoulder. Re-entry is proceeding well, but the mystery persists.

“We haven’t the slightest idea how they do this,” Mr. Galaxy said. “Anybody who says they do is lying, and, if you find it, please God, tell me what it is.”

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Well: Holly the Cat's Incredible Journey

Nobody knows how it happened: an indoor housecat who got lost on a family excursion managing, after two months and about 200 miles, to return to her hometown.

Even scientists are baffled by how Holly, a 4-year-old tortoiseshell who in early November became separated from Jacob and Bonnie Richter at an R.V. rally in Daytona Beach, Fla., appeared on New Year’s Eve — staggering, weak and emaciated — in a backyard about a mile from the Richter’s house in West Palm Beach.

“Are you sure it’s the same cat?” wondered John Bradshaw, director of the University of Bristol’s Anthrozoology Institute. In other cases, he has suspected, “the cats are just strays, and the people have got kind of a mental justification for expecting it to be the same cat.”

But Holly not only had distinctive black-and-brown harlequin patterns on her fur, but also an implanted microchip to identify her.

“I really believe these stories, but they’re just hard to explain,” said Marc Bekoff, a behavioral ecologist at the University of Colorado. “Maybe being street-smart, maybe reading animal cues, maybe being able to read cars, maybe being a good hunter. I have no data for this.”

There is, in fact, little scientific dogma on cat navigation. Migratory animals like birds, turtles and insects have been studied more closely, and use magnetic fields, olfactory cues, or orientation by the sun.

Scientists say it is more common, although still rare, to hear of dogs returning home, perhaps suggesting, Dr. Bradshaw said, that they have inherited wolves’ ability to navigate using magnetic clues. But it’s also possible that dogs get taken on more family trips, and that lost dogs are more easily noticed or helped by people along the way.

Cats navigate well around familiar landscapes, memorizing locations by sight and smell, and easily figuring out shortcuts, Dr. Bradshaw said.

Strange, faraway locations would seem problematic, although he and Patrick Bateson, a behavioral biologist at Cambridge University, say that cats can sense smells across long distances. “Let’s say they associate the smell of pine with wind coming from the north, so they move in a southerly direction,” Dr. Bateson said.

Peter Borchelt, a New York animal behaviorist, wondered if Holly followed the Florida coast by sight or sound, tracking Interstate 95 and deciding to “keep that to the right and keep the ocean to the left.”

But, he said, “nobody’s going to do an experiment and take a bunch of cats in different directions and see which ones get home.”

The closest, said Roger Tabor, a British cat biologist, may have been a 1954 study in Germany which cats placed in a covered circular maze with exits every 15 degrees most often exited in the direction of their homes, but more reliably if their homes were less than five kilometers away.

New research by the National Geographic and University of Georgia’s Kitty Cams Project, using video footage from 55 pet cats wearing video cameras on their collars, suggests cat behavior is exceedingly complex.

For example, the Kitty Cams study found that four of the cats were two-timing their owners, visiting other homes for food and affection. Not every cat, it seems, shares Holly’s loyalty.

KittyCams also showed most of the cats engaging in risky behavior, including crossing roads and “eating and drinking substances away from home,” risks Holly undoubtedly experienced and seems lucky to have survived.

But there have been other cats who made unexpected comebacks.

“It’s actually happened to me,” said Jackson Galaxy, a cat behaviorist who hosts “My Cat From Hell” on Animal Planet. While living in Boulder, Colo., he moved across town, whereupon his indoor cat, Rabbi, fled and appeared 10 days later at the previous house, “walking five miles through an area he had never been before,” Mr. Galaxy said.

Professor Tabor cited longer-distance reports he considered credible: Murka, a tortoiseshell in Russia, traveling about 325 miles home to Moscow from her owner’s mother’s house in Voronezh in 1989; Ninja, who returned to Farmington, Utah, in 1997, a year after her family moved from there to Mill Creek, Wash.; and Howie, an indoor Persian cat in Australia who in 1978 ran away from relatives his vacationing family left him with and eventually traveled 1,000 miles to his family’s home.

Professor Tabor also said a Siamese in the English village of Black Notley repeatedly hopped a train, disembarked at White Notley, and walked several miles back to Black Notley.

Still, explaining such journeys is not black and white.

In the Florida case, one glimpse through the factual fog comes on the little cat’s feet. While Dr. Bradshaw speculated Holly might have gotten a lift, perhaps sneaking under the hood of a truck heading down I-95, her paws suggest she was not driven all the way, nor did Holly go lightly.

“Her pads on her feet were bleeding,” Ms. Richter said. “Her claws are worn weird. The front ones are really sharp, the back ones worn down to nothing.”

Scientists say that is consistent with a long walk, since back feet provide propulsion, while front claws engage in activities like tearing. The Richters also said Holly had gone from 13.5 to 7 pounds.

Holly hardly seemed an adventurous wanderer, though her background might have given her a genetic advantage. Her mother was a feral cat roaming the Richters’ mobile home park, and Holly was born inside somebody’s air-conditioner, Ms. Richter said. When, at about six weeks old, Holly padded into their carport and jumped into the lap of Mr. Richter’s mother, there were “scars on her belly from when the air conditioner was turned on,” Ms. Richter said.

Scientists say that such early experience was too brief to explain how Holly might have been comfortable in the wild — after all, she spent most of her life as an indoor cat, except for occasionally running outside to chase lizards. But it might imply innate personality traits like nimbleness or toughness.

“You’ve got these real variations in temperament,” Dr. Bekoff said. “Fish can by shy or bold; there seem to be shy and bold spiders. This cat, it could be she has the personality of a survivor.”

He said being an indoor cat would not extinguish survivalist behaviors, like hunting mice or being aware of the sun’s orientation.

The Richters — Bonnie, 63, a retired nurse, and Jacob, 70, a retired airline mechanics’ supervisor and accomplished bowler — began traveling with Holly only last year, and she easily tolerated a hotel, a cabin or the R.V.

But during the Good Sam R.V. Rally in Daytona, when they were camping near the speedway with 3,000 other motor homes, Holly bolted when Ms. Richter’s mother opened the door one night. Fireworks the next day may have further spooked her, and, after searching for days, alerting animal agencies and posting fliers, the Richters returned home catless.

Two weeks later, an animal rescue worker called the Richters to say a cat resembling Holly had been spotted eating behind the Daytona franchise of Hooters, where employees put out food for feral cats.

Then, on New Year’s Eve, Barb Mazzola, a 52-year-old university executive assistant, noticed a cat “barely standing” in her backyard in West Palm Beach, struggling even to meow. Over six days, Ms. Mazzola and her children cared for the cat, putting out food, including special milk for cats, and eventually the cat came inside.

They named her Cosette after the orphan in Les Misérables, and took her to a veterinarian, Dr. Sara Beg at Paws2Help. Dr. Beg said the cat was underweight and dehydrated, had “back claws and nail beds worn down, probably from all that walking on pavement,” but was “bright and alert” and had no parasites, heartworm or viruses. “She was hesitant and scared around people she didn’t know, so I don’t think she went up to people and got a lift,” Dr. Beg said. “I think she made the journey on her own.”

At Paws2Help, Ms. Mazzola said, “I almost didn’t want to ask, because I wanted to keep her, but I said, ‘Just check and make sure she doesn’t have a microchip.’” When told the cat did, “I just cried.”

The Richters cried, too upon seeing Holly, who instantly relaxed when placed on Mr. Richter’s shoulder. Re-entry is proceeding well, but the mystery persists.

“We haven’t the slightest idea how they do this,” Mr. Galaxy said. “Anybody who says they do is lying, and, if you find it, please God, tell me what it is.”

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Jeffrey Sprecher’s Improbable Path to Buying the N.Y.S.E.

WHEN nearly all else had failed, Jeffrey C. Sprecher flew to New York City and crashed at his sisters’ apartment, a cramped walk-up on the Upper West Side, one flight above a noisy bar.

It was January 2000, and Mr. Sprecher had been cold-calling Wall Street for weeks. He was searching desperately for someone to back his small company in Atlanta, a business that was eating up his money and years of his life.

That’s when a black limousine pulled up in front of the bar, Jake’s Dilemma. The limo had been sent by the mighty Goldman Sachs to fetch Mr. Sprecher, and as he sank into the back seat that winter day, he set off on an improbable journey that has since taken him to the pinnacle of American finance.

Today Mr. Sprecher, a man virtually unknown outside of financial circles, is poised to buy the New York Stock Exchange. Not one of the 2,300 or so stocks traded on the New York Stock Exchange (combined value of those shares: about $20.1 trillion). No, Jeff Sprecher is buying the entire New York Stock Exchange.

It sounds preposterous. A businessman from Atlanta blows into New York and walks off with the colonnaded high temple of American capitalism. But if all goes according to plan, his $8.2 billion acquisition, announced a few days before Christmas, will close later this year. And with that, 221 years of Wall Street history will come to an end. No more will New York be the master of the New York Stock Exchange. Instead, from its bland headquarters 750 miles from Wall Street, Mr. Sprecher’s young company, IntercontinentalExchange, will run the largest stock exchange in the nation and the world.

Mr. Sprecher, 57, certainly plays the role of a wily upstart. He may wear power suits and a Patek Philippe watch, but he comes across as unusually casual and self-deprecating for a man in his position. He pokes fun at himself for his shortcomings — “I don’t know how to manage people,” he says — and his love of obscure documentaries.

How the New York Stock Exchange fell into Mr. Sprecher’s hands is, at heart, a story of the disruptive power of innovation. ICE, as IntercontinentalExchange is known, did not even exist 13 years ago. It has no cavernous trading floor, no gilded halls, no sweaty brokers braying for money on the financial markets. What it has is technology.

Like many young companies that are upending the old order in business, ICE has used computer power to do things faster and cheaper, if not always better, than people can. Its rapid ascent reflects a new Wall Street where high-speed computers now dominate trading, sometimes with alarming consequences. New, electronic trading systems have greatly reduced the cost of buying and selling stocks, thus saving mutual funds — and, by extension, ordinary investors — countless millions. But they have also helped usher in a period of hair-raising volatility.

Mr. Sprecher (pronounced SPRECK-er) has probably done more than anyone else to dismantle the trading floors of old and replace human brokers with machines. Along the way, he and ICE have traced an arc through some of the defining business stories of our time — from the rise and fall of Enron, to the transformation of old-school investment banks into vast trading operations, to the Wall Street excesses that not long ago helped derail the entire economy. Now, after a series of bold acquisitions, he is about to become the big boss of the Big Board.

Does it really matter who owns the New York Stock Exchange and its parent company, NYSE Euronext? For most people, stock exchanges are probably a bit like plumbing. Most of us don’t think much about them — until something goes wrong. But lately, some things have gone spectacularly wrong.

One sign of trouble came in 2010, when an errant trade ricocheted through computer networks and touched off one of the most harrowing moments in stock market history. The Dow Jones industrial average plunged 900 points in a matter of minutes, and a new phrase entered the lexicon: flash crash.

Since then, flash crashes in individual stocks have been remarkably common, as the centuries-old system of central exchanges has given way to a field of competing electronic systems.

ICE wasn’t involved in any of these problems. In fact, it has been praised as one of the first exchanges to put limits on lightning-quick, high-frequency trading. This points to Mr. Sprecher’s deftness in piloting his company through periods of regulation, deregulation and now re-regulation.

While many banking executives have clashed with Washington, Mr. Sprecher has sensed the changing winds and tacked accordingly. He also stays close — some say too close — to the powerful Wall Street firms that are his customers.

It is perhaps unsurprising that some of the people who make their living on the Big Board’s floor are a bit nervous about the exchange’s new boss. But Mr. Sprecher says they have nothing to fear. His friends and business associates say he could actually turn out to be the best hope for restoring trust in the stock market. After all, he has beaten the odds before.

“There were a number of times when the odds were long, but he wasn’t deterred from stepping in,” says James Newsome, who was Mr. Sprecher’s regulator at the Commodity Futures Trading Commission before becoming his competitor as chief executive of the New York Mercantile Exchange. “A lot of people, if they don’t think they will win, they won’t participate. Jeff doesn’t operate like that.”

For now, Mr. Sprecher is still spending much of his time at ICE’s headquarters in suburban Atlanta. The contrast with the New York Stock Exchange is striking. Behind its neoclassical face, the Big Board is a sprawling labyrinth of historic oil paintings, gilded leather chairs, stained wood and elegant dining rooms — all set amid crowds of gawking tourists.

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