Frequent Flier: An Environmentalist Weighs the Fallout of Flying

Ami Vitale

M. Sanjayan, the lead scientist for The Nature Conservancy, at Firehole River in Yellowstone National Park.

I FLY a lot. And honestly, flying now is a means to an end, although I used to enjoy it. It’s not that I hate it or am paranoid. It’s just that it’s a chore.

Q. How often do you fly for business?

A. Once or twice a week, mostly domestic, but also international about once a month.

Q. What’s your least favorite airport?

A. I hate to say it and know I will get criticized, but it’s Denver International. It should be a great airport, but it isn’t. There are no amenities, no decent meals, no nothing.

Q. Of all the places you’ve been, what’s the best?

A. East Africa. It’s where humans evolved, and it always feels like a homecoming to me. The temperature, the way it looks, the gestalt rekindles a cellular memory that when I’m there I’m in my ancestral home. I think it’s where humans really belong.

Q. What’s your secret airport vice?

A. I catch up on TV shows that I can’t watch at any other time. I’ve watched entire seasons of “Breaking Bad,” “Homeland” and “Downton Abbey” all in one trip.

As the lead scientist for the Nature Conservancy, I am fully aware of the ramifications of flying and its effect on the environment, but sometimes I have to do it. I do always ask myself the question: When I get to my destination, what can I deliver? In other words, is it really important for me to be someplace?

If not, I’m not going to go. I don’t go to meetings, conferences or events unless if I have a very specific role. And then, of course, there’s a personal toll. Flying can be tough on the body and spirit, even if you take good care of yourself.

I love seeing kids take their first flight. It can be so cool to fly as a kid, even today with all the hassle and limited service.

The first time I got to fly was as a 5-year-old on a KLM DC-8 from Colombo in Sri Lanka to Amsterdam. It was a huge thrill. My dad gave me the window seat and I stayed awake for as long as I could, following our path over darkened Asia and then Europe.

As I remember it, the food was fantastic. It was served in a tray that was partitioned into little quadrants. We ate with forks and knives, not with our hands as we did at home in Sri Lanka. Cheese was wrapped in foil, chocolate came in a Delft blue wrapper with a windmill stamped on it, and the juice wasn’t straight from an orange but a box. It was such a big deal to eat like a Westerner.

Since I often travel to remote locations, I rarely carry luggage. I want everything I need close at hand and I hate having to wait and guess whether my luggage will make it. If I really need something I don’t have, I can usually buy it locally. Occasionally, I don’t have a choice because a trip may be too long or too complicated for me to avoid taking my own gear. One time, I was particularly thankful that I put a red jersey in my carry-on.

A few years ago in Alaska, I was stranded with a Discovery Channel crew. We were on a sandy island on the Tana River in the gigantic Wrangell-St. Elias wilderness. The river was running ragged with heavy glacial melt and our rafts were no match for the white water.

We were drenched and miserable. To perhaps catch a passing plane’s attention, I actually wrote a message out on the sand beach with a big stick, just like you see in the movies. When I did see a plane coming, I whirled my red jersey over my head to catch the eye of the bush pilot.

The plane came in very low, the pilot read the message in the sand about our need for help, and then he tossed out a radio and a note, wrapped in his rain jacket. It was amazing. We used the radio to talk to him, and then we arranged a pickup.

The funny thing was that when I was writing out the message in the sand, which gave our GPS coordinates and pickup date, everyone who was with me had advice about what I should say, how big the letters should be, how to make it visible and so on. I mean, really?

Flagging down flying aircraft while you’re on an island is not as common as hailing a cab in rush hour. But everyone had an opinion.

As a scientist, I have to replicate experiments. This is one I don’t really want to repeat ever again.

By M. Sanjayan, as told to Joan Raymond. E-mail: joan.raymond@nytimes.com

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Some Companies Seek to Wean Employees From Their Smartphones

Resolutions to change behavior are common at this time of year, but they usually involve exercising more or smoking less. Now, some companies are adopting policies aimed at weaning employees from their electronic devices.

Matthew Ryan Williams for The New York Times

Michelle Barry and Mark Jacobsen of Centric Brand Anthropology strive for the elusive work-life balance.

Atos, an international information technology company, plans to phase out all e-mails among employees by the end of 2013 and rely instead on other forms of communication. And starting in the new year, employees at Daimler, the German automaker, can have incoming e-mail automatically deleted during vacations so they do not return to a flooded in-box. An automatic message tells the sender which person is temporarily dealing with the employee’s e-mail.

No one is expected to be on call at all hours of the day and night, and “switching off” after work is important, “even if you are on a business trip,” said Sabrina Schrimpf, a Daimler spokeswoman, referring to the company’s recently released report, “Balanced! — Reconciling Employees’ Work and Private Lives.”

Disconnecting can be more challenging for business travelers who frequently work across time zones.

And there is a ripple effect, said Leslie A. Perlow, a professor of leadership at Harvard Business School and the author of “Sleeping With Your Smartphone.” “These guys fly in the middle of the night and send e-mails back to colleagues” who wait up, ready to respond.

A study conducted last spring by the Pew Research Center’s Internet and American Life Project found that while mobile phones were valued as a way to stay productive, there were downsides to being available at all times. The nationwide survey of 2,254 adults found that 44 percent of cellphone owners had slept with their phone next to their bed and that 67 percent had experienced “phantom rings,” checking their phone even when it was not ringing or vibrating. Still, the proportion of cellphone owners who said they “could live without it” has gone up, to 37 percent from 29 percent in 2006.

Sam Chapman, chief executive of Empower Public Relations in Chicago, said he used to feel phantom vibrations and frequently read and sent e-mail on his BlackBerry in the middle of the night. He slept poorly, did not feel refreshed in the morning and considered himself addicted. “I wanted to make sure that what happened to me didn’t happen to my employees,” he said.

So Mr. Chapman adopted what he called a BlackBerry blackout policy. He and his staff of about 20 turn off their BlackBerrys from 6 p.m. to 6 a.m. on weekdays and completely on weekends for all work-related use, with rare exceptions. “When I’m well rested, I show up to work ready to go,” he said.

He maintains that regimen while traveling, and said the policy had increased company productivity.

Professor Perlow agreed that companies could improve their bottom line by encouraging employees to disconnect at times. “Being constantly on actually undermines productivity,” she said.

But it is not always easy. In early 2012, when Michelle Barry, Mark Jacobsen and a third partner created Centric Brand Anthropology, a Seattle-based company that advises clients on brand strategy, design and culture management, they gave serious thought to the issue.

“A huge priority for us was to have a good balance between work-life,” said Mr. Jacobsen, Centric’s vice president and creative director. “Yet we have found that very difficult to do while working with large multinational clients,” which often require international travel and constant availability.

Being a start-up compounded those challenges. “Just because you can e-mail at 2 a.m., doesn’t mean it’s a good thing,” he said.

Centric encourages employees to prepare a week before a trip, designating a colleague as backup, informing clients about their travel plans, and trying to avoid deadlines immediately after they return. Employees are also encouraged to take spouses or partners on longer assignments and to build in downtime, said Ms. Barry, the company’s president and chief executive. When traveling, she said, “I make a commitment to myself not to stay up all night answering e-mails.”

Experts say there is no firm data for how many companies have policies restricting the use of electronic devices outside the office. “The companies I know actively encourage workers to stay connected after hours and on weekends,” said Dennis J. Garritan, a managing partner of the private equity firm Palmer Hill Capital and an adjunct professor at Harvard Business School.

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U.S. Birthrate Dips, Especially for Hispanics

ORLANDO, Fla. — Hispanic women in the United States, who have generally had the highest fertility rates in the country, are choosing to have fewer children. Both immigrant and native-born Latinas had steeper birthrate declines from 2007 to 2010 than other groups, including non-Hispanic whites, blacks and Asians, a drop some demographers and sociologists attribute to changes in the views of many Hispanic women about motherhood.

As a result, in 2011, the American birthrate hit a record low, with 63 births per 1,000 women ages 15 to 44, led by the decline in births to immigrant women. The national birthrate is now about half what it was during the baby boom years, when it peaked in 1957 at 122.7 births per 1,000 women of childbearing age.

The decline in birthrates was steepest among Mexican-American women and women who immigrated from Mexico, at 25.7 percent. This has reversed a trend in which immigrant mothers accounted for a rising share of births in the United States, according to a recent report by the Pew Research Center. In 2010, birthrates among all Hispanics reached their lowest level in 20 years, the center found.

The sudden drop-off, which coincided with the onset of the recession, suggests that attitudes have changed since the days when older generations of Latinos prized large families and more closely followed Roman Catholic teachings, which forbid artificial contraception.

Interviews with young Latinas, as well as reproductive health experts, show that the reasons for deciding to have fewer children are many, involving greater access to information about contraceptives and women’s health, as well as higher education.

When Marucci Guzman decided to marry Tom Beard here seven years ago, the idea of having a large family — a Guzman tradition back in Puerto Rico — was out of the question.

“We thought one, maybe two,” said Ms. Guzman Beard, who gave birth to a daughter, Attalai, four years ago.

Asked whether Attalai might ever get her wish for a little brother or sister, Ms. Guzman Beard, 29, a vice president at a public service organization, said: “I want to go to law school. I’m married. I work. When do I have time?”

The decisions were not made in a vacuum but amid a sputtering economy, which, interviewees said, weighed heavily on their minds.

Latinos suffered larger percentage declines in household wealth than white, black or Asian households from 2005 to 2009, and, according to the Pew report, their rates of poverty and unemployment also grew more sharply after the recession began.

Prolonged recessions do produce dips in the birthrate, but a drop as large as Latinos have experienced is atypical, said William H. Frey, a sociologist and demographer at the Brookings Institution. “It is surprising,” Mr. Frey said. “When you hear about a decrease in the birthrate, you don’t expect Latinos to be at the forefront of the trend.”

D’Vera Cohn, a senior writer at the Pew Research Center and an author of the report, said that in past recessions, when overall fertility dipped, “it bounced back over time when the economy got better.”

“If history repeats itself, that will happen again,” she said.

But to Mr. Frey, the decrease has signaled much about the aspirations of young Latinos to become full and permanent members of the upwardly mobile middle class, despite the challenges posed by the struggling economy.

Jersey Garcia, a 37-year-old public health worker in Miami, is in the first generation of her family to live permanently outside of the Dominican Republic, where her maternal and paternal grandmothers had a total of 27 children.

“I have two right now,” Ms. Garcia said. “It’s just a good number that I can handle.”

“Before, I probably would have been pressured to have more,” she added. “I think living in the United States, I don’t have family members close by to help me, and it takes a village to raise a child. So the feeling is, keep what you have right now.”

But that has not been easy. Even with health insurance, Ms. Garcia’s preferred method of long-term birth control, an IUD, has been unaffordable. Birth control pills, too, with a $50 co-payment a month, were too costly for her budget. “I couldn’t afford it,” she said. “So what I’ve been doing is condoms.”

According to research by the National Latina Institute for Reproductive Health, the overwhelming majority of Latinas have used contraception at some point in their lives, but they face economic barriers to consistent use. As a consequence, Latinas still experience unintended pregnancy at a rate higher than non-Hispanic whites, according to the institute.

And while the share of births to teenage mothers has dropped over the past two decades for all women, the highest share of births to teenage mothers is among native-born Hispanics.

“There are still a lot of barriers to information and access to contraception that exist,” said Jessica Gonzáles-Rojas, 36, the executive director of the institute, who has one son. “We still need to do a lot of work.”

Read More..

U.S. Birthrate Dips, Especially for Hispanics

ORLANDO, Fla. — Hispanic women in the United States, who have generally had the highest fertility rates in the country, are choosing to have fewer children. Both immigrant and native-born Latinas had steeper birthrate declines from 2007 to 2010 than other groups, including non-Hispanic whites, blacks and Asians, a drop some demographers and sociologists attribute to changes in the views of many Hispanic women about motherhood.

As a result, in 2011, the American birthrate hit a record low, with 63 births per 1,000 women ages 15 to 44, led by the decline in births to immigrant women. The national birthrate is now about half what it was during the baby boom years, when it peaked in 1957 at 122.7 births per 1,000 women of childbearing age.

The decline in birthrates was steepest among Mexican-American women and women who immigrated from Mexico, at 25.7 percent. This has reversed a trend in which immigrant mothers accounted for a rising share of births in the United States, according to a recent report by the Pew Research Center. In 2010, birthrates among all Hispanics reached their lowest level in 20 years, the center found.

The sudden drop-off, which coincided with the onset of the recession, suggests that attitudes have changed since the days when older generations of Latinos prized large families and more closely followed Roman Catholic teachings, which forbid artificial contraception.

Interviews with young Latinas, as well as reproductive health experts, show that the reasons for deciding to have fewer children are many, involving greater access to information about contraceptives and women’s health, as well as higher education.

When Marucci Guzman decided to marry Tom Beard here seven years ago, the idea of having a large family — a Guzman tradition back in Puerto Rico — was out of the question.

“We thought one, maybe two,” said Ms. Guzman Beard, who gave birth to a daughter, Attalai, four years ago.

Asked whether Attalai might ever get her wish for a little brother or sister, Ms. Guzman Beard, 29, a vice president at a public service organization, said: “I want to go to law school. I’m married. I work. When do I have time?”

The decisions were not made in a vacuum but amid a sputtering economy, which, interviewees said, weighed heavily on their minds.

Latinos suffered larger percentage declines in household wealth than white, black or Asian households from 2005 to 2009, and, according to the Pew report, their rates of poverty and unemployment also grew more sharply after the recession began.

Prolonged recessions do produce dips in the birthrate, but a drop as large as Latinos have experienced is atypical, said William H. Frey, a sociologist and demographer at the Brookings Institution. “It is surprising,” Mr. Frey said. “When you hear about a decrease in the birthrate, you don’t expect Latinos to be at the forefront of the trend.”

D’Vera Cohn, a senior writer at the Pew Research Center and an author of the report, said that in past recessions, when overall fertility dipped, “it bounced back over time when the economy got better.”

“If history repeats itself, that will happen again,” she said.

But to Mr. Frey, the decrease has signaled much about the aspirations of young Latinos to become full and permanent members of the upwardly mobile middle class, despite the challenges posed by the struggling economy.

Jersey Garcia, a 37-year-old public health worker in Miami, is in the first generation of her family to live permanently outside of the Dominican Republic, where her maternal and paternal grandmothers had a total of 27 children.

“I have two right now,” Ms. Garcia said. “It’s just a good number that I can handle.”

“Before, I probably would have been pressured to have more,” she added. “I think living in the United States, I don’t have family members close by to help me, and it takes a village to raise a child. So the feeling is, keep what you have right now.”

But that has not been easy. Even with health insurance, Ms. Garcia’s preferred method of long-term birth control, an IUD, has been unaffordable. Birth control pills, too, with a $50 co-payment a month, were too costly for her budget. “I couldn’t afford it,” she said. “So what I’ve been doing is condoms.”

According to research by the National Latina Institute for Reproductive Health, the overwhelming majority of Latinas have used contraception at some point in their lives, but they face economic barriers to consistent use. As a consequence, Latinas still experience unintended pregnancy at a rate higher than non-Hispanic whites, according to the institute.

And while the share of births to teenage mothers has dropped over the past two decades for all women, the highest share of births to teenage mothers is among native-born Hispanics.

“There are still a lot of barriers to information and access to contraception that exist,” said Jessica Gonzáles-Rojas, 36, the executive director of the institute, who has one son. “We still need to do a lot of work.”

Read More..

Afghan Army Deaths on the Rise

KABUL, Afghanistan — The Afghan government has hit a grim record in its quest to take over the country’s security from coalition forces: more than 1,000 soldiers died in 2012, a roughly 20 percent increase from 2011.

Though the Afghan Army’s death rates have outstripped those for international forces in recent years, the new figures show the widest margin yet, as more and more Afghan units have taken the field. International forces were reported to have lost about 400 soldiers in 2012, the lowest number since 2008.

The progress of the Afghan National Army in being able to fight the insurgency is crucial to the international coalition’s exit strategy as the formal end of NATO combat operations looms in 2014. Afghan officials say that Afghan forces now plan and lead 80 percent of combat operations across the country. And as the army has filled out its ranks, the number of those killed has risen as well. Since 2008, the number of enlisted soldiers has nearly tripled, to 195,000.

Depending on how one reads the numbers, the latest figures can be both hopeful and troubling. Inasmuch as the uptick in deaths indicates a more active role for the army, the data is encouraging: Afghan-led operations would be expected to result in more Afghan casualties, after all. But for some, the statistics also raise questions about whether the army is ready to take over control of the country’s security.

“These high figures send a message to Afghans as well as the international community that the Afghan security forces are not ready to take over and that we will witness even more severe casualties in the next couple of years,” said Jawid Kohistani, a military analyst based in Kabul. “The only thing preventing the Taliban from taking over a district or a province or carrying out more audacious attacks is the presence of foreign forces who are equipped with modern and advanced technology.”

Progress has been uneven on numerous fronts. Accidents make up a significant number of the Afghan Army deaths. Almost no units can operate without assistance from coalition forces. And defections and low re-enlistment rates are also troubling — the government has to replace about a third of its troops every year.

Even the Defense Ministry acknowledged weaknesses when announcing the updated figures Sunday. Gen. Zahir Azimi, the ministry’s spokesman, said that poor equipment and training left soldiers exposed. Homemade bombs and mines caused about 85 percent of the deaths this year, a figure he said would come down with proper equipment. Intelligence gathering is also a weak spot for the national army.

“We are still heavily relying on foreigners for our intelligence,” he said. “We are hopeful that by the end of 2014 our army is equipped with intelligence capabilities and equipment.”

Among other concerns the government must consider while building the army is how to keep soldiers from being killed by the Taliban. In recent weeks, the Taliban have mounted a campaign to kidnap and kill soldiers who are on leave from their jobs. On Saturday, the Taliban killed a soldier returning from vacation to his base in Laghman Province.

“They take soldiers out of their homes and brutally execute them,” General Azimi said. “Can anyone see even a small bit of respect for human rights?”

But if the general sounded somewhat chastened by the task ahead, commanders on the ground struck a more upbeat note about the future.

“The army is getting better every day and our soldiers will not face any problem next year,” said Gen. Zamarai, commander of the second brigade of the Afghan National Army in Paktika Province, who uses only one name. “As the foreign forces leave, the army is filling the districts and bases, and so far we have managed to provide tight security for the residents of the province.”

Farooq Jan Mangal contributed reporting from Khost Province, Afghanistan.

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Questcor Finds Profit for Acthar Drug, at $28,000 a Vial

Kevin Moloney for The New York Times

Christina Culver with her son Tyler, 6, at home in Colorado Springs this month. In 2007, Tyler was hospitalized when the price of Acthar soared.

THE doctor was dumbfounded: a drug that used to cost $50 was now selling for $28,000 for a 5-milliliter vial.

The physician, Dr. Ladislas Lazaro IV, remembered occasionally prescribing this anti-inflammatory, named H.P. Acthar Gel, for gout back in the early 1990s. Then the drug seemed to fade from view. Dr. Lazaro had all but forgotten about it, until a sales representative from a company called Questcor Pharmaceuticals appeared at his office and suggested that he try it for various rheumatologic conditions.

“I’ve never seen anything like this,” Dr. Lazaro, a rheumatologist in Lafayette, La., says of the price increase.

How the price of this drug rose so far, so fast is a story for these troubled times in American health care — a tale of aggressive marketing, questionable medicine and, not least, out-of-control costs. At the center of it is Questcor, which turned the once-obscure Acthar into a hugely profitable wonder drug and itself into one of Wall Street’s highest fliers.

At least until recently, that is. Now some doctors, insurance companies and investors are beginning to have doubts about whether the drug is really any better than much cheaper alternatives. Short-sellers have written scathing criticisms of the company, questioning its marketing tactics and predicting that its shareholders are highly vulnerable.

 That Acthar is even a potential blockbuster is a remarkable turn of events, considering that the drug was developed in the 1950s by a division of Armour & Company, the meatpacking company that once ruled the Union Stock Yards of Chicago. As in the 1950s, Acthar is still extracted from the pituitary glands of slaughtered pigs — essentially a byproduct of the meatpacking industry.

The most important use of Acthar has been to treat infantile spasms, also known as West syndrome, a rare, sometimes fatal epileptic disorder that generally strikes before the age of 1.

For several years, Questcor, which is based in Anaheim, lost money on Acthar because the drug’s market was so small. In 2007, it raised the price overnight, to more than $23,000 a vial, from $1,650, bringing the cost of a typical course of treatment for infantile spasms to above $100,000. It said it needed the high price to keep the drug on the market.

“We have this drug at a very high price right now because, really, our principal market is infantile spasms,” Don M. Bailey, Questcor’s chief executive, told analysts in 2009. “And we only have about 800 patients a year. It’s a very, very small — tiny — market.”

Companies often charge stratospheric prices for drugs for rare diseases — known as orphan drugs — and Acthar’s price is not as high as some. Society generally tolerates those costs to encourage drug companies to develop crucial, possibly lifesaving drugs for these often neglected diseases.

But Questcor did almost no research or development to bring Acthar to market, merely buying the rights to the drug from its previous owner for $100,000 in 2001. And while the manufacturing of Acthar is complex, it accounts for only about 1 cent of every dollar that Questcor charges for the drug.

Moreover, the tiny “orphan” market soon became much bigger. Before long, Questcor began marketing the drug for multiple sclerosis, nephrotic syndrome and rheumatologic conditions, even though there is little evidence that Acthar is more effective for those other conditions than alternatives that are far cheaper. And the company did so without being required to prove that the drug actually works. That is because Acthar was approved for use in 1952, before the Food and Drug Administration required clinical trials to show a drug is effective for a particular disease. Acthar is essentially grandfathered in.

Today, only about 10 percent of the drug’s sales are for infantile spasms. The new uses, Mr. Bailey has told analysts, represent multibillion-dollar opportunities for Acthar and Questcor, its sole maker.

The results have been beyond even the company’s wildest dreams. Sales of Acthar, which accounts for essentially all of Questcor’s sales, totaled nearly $350 million in the first nine months this year, up 145 percent from the period a year earlier. In the same period, Questcor’s earnings per share nearly tripled, to $2.12. In the five years after the big Acthar price increase in August 2007, Questcor shares rose from around 60 cents to about $50, in one of the best performances of any stock in any industry.

But in September, the shares plummeted after Aetna, the big insurer, said it would no longer pay for Acthar, except to treat infantile spasms, because of lack of evidence the drug worked for other diseases. The stock now trades at $26.93.

Peter Wickersham, senior vice president for cost of care at Prime Therapeutics, a pharmacy benefits manager that has found the drug is possibly being overused, says the huge increase in Acthar’s price for patients “just invites the type of scrutiny that it’s received.”

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Dr. Rita Levi-Montalcini, a Revolutionary in the Study of the Brain, Dies at 103

Fabio Campana/European Pressphoto Agency

Dr. Rita Levi-Montalcini in 2007. She discovered chemical tools the body uses to direct cell growth and build nerve networks.

Dr. Rita Levi-Montalcini, a Nobel Prize-winning neurologist who discovered critical chemical tools that the body uses to direct cell growth and build nerve networks, opening the way for the study of how those processes can go wrong in diseases like dementia and cancer, died on Sunday at her home in Rome. She was 103.

Her death was announced by Mayor Gianni Alemanno of Rome.

“I don’t use these words easily, but her work revolutionized the study of neural development, from how we think about it to how we intervene,” said Dr. Gerald D. Fishbach, a neuroscientist and professor emeritus at Columbia.

Scientists had virtually no idea how embryo cells built a latticework of intricate connections to other cells when Dr. Levi-Montalcini began studying chicken embryos in the bedroom of her house in Turin, Italy, during World War II. After years of obsessive study, much of it at Washington University in St. Louis with Dr. Viktor Hamburger, she found a protein that, when released by cells, attracted nerve growth from nearby developing cells.

In the early 1950s, she and Dr. Stanley Cohen, a biochemist also at Washington University, isolated and described the chemical, known as nerve growth factor — and in the process altered the study of cell growth and development. Scientists soon realized that the protein gave them a new way to study and understand disorders of neural growth, like cancer, or of degeneration, like Alzheimer’s disease, and to potentially develop therapies.

In the years after the discovery, Dr. Levi-Montalcini, Dr. Cohen and others described a large family of such growth-promoting agents, each of which worked to regulate the growth of specific cells. One, called epidermal growth factor and discovered by Dr. Cohen, plays a central role in breast cancer; in part by studying its behavior, scientists developed drugs to combat the abnormal growth.

In 1986, Dr. Levi-Montalcini and Dr. Cohen shared the Nobel Prize in Physiology or Medicine for their work.

Dr. Cohen, now an emeritus professor at Vanderbilt University, said Dr. Levi-Montalcini possessed a rare combination of intuition and passion, as well as biological knowledge. “She had this feeling for what was happening biologically,” he said. “She was an intuitive observer, and she saw that something was making these nerve connections grow and was determined to find out what it was.”

One of four children, Rita Levi-Montalcini was born in Turin on April 22, 1909, to Adamo Levi, an engineer, and Adele Montalcini, a painter, both Italian Jews who traced their roots to the Roman Empire. In keeping with the Victorian customs of the time, Mr. Levi discouraged his three daughters from entering college, fearing that it would interfere with their lives as wives and mothers.

It was not a future that Rita wanted. She had decided to become a doctor and told her father so. “He listened, looking at me with that serious and penetrating gaze of his that caused me such trepidation,” she wrote in her autobiography, “In Praise of Imperfection” (1988). He also agreed to support her.

She graduated summa cum laude from the University of Turin medical school in 1936. Two years later, Mussolini issued a manifesto barring non-Aryan Italians from having professional careers. She began her research anyway, setting up a small laboratory in her home to study chick embryos, inspired by the work of Dr. Hamburger, a prominent researcher in St. Louis who also worked with the embryos.

During World War II, the family fled Turin for the countryside, and in 1943 the invasion by Germany forced them to Florence. The family returned at the close of the war, in 1945, and Dr. Hamburger soon invited Dr. Levi-Montalcini to work for a year in his lab at Washington University.

She stayed on, becoming an associate professor in 1956 and a full professor in 1958. In 1962, she helped establish the Institute of Cell Biology in Rome and became its first director. She retired from Washington University in 1977, becoming a guest professor and splitting her time between Rome and St. Louis.

Italy honored her in 2001 by making her a senator for life.

An elegant presence, confident and passionate, she was a sought-after speaker until late in life. “At 100, I have a mind that is superior — thanks to experience — than when I was 20,” she said in 2009.

She never married and had no children. In addition to her autobiography, she was the author or co-author of dozens of research studies and received numerous professional awards, including the National Medal of Science.

“It is imperfection — not perfection — that is the end result of the program written into that formidably complex engine that is the human brain,” Dr. Levi-Montalcini wrote in her autobiography, “and of the influences exerted upon us by the environment and whoever takes care of us during the long years of our physical, psychological and intellectual development.”

This article has been revised to reflect the following correction:

Correction: December 30, 2012

An earlier version of this obituary misstated the year Mussolini issued a manifesto barring non-Aryan Italians from having professional careers. It was 1938, not 1936.

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Dr. Rita Levi-Montalcini, a Revolutionary in the Study of the Brain, Dies at 103

Fabio Campana/European Pressphoto Agency

Dr. Rita Levi-Montalcini in 2007. She discovered chemical tools the body uses to direct cell growth and build nerve networks.

Dr. Rita Levi-Montalcini, a Nobel Prize-winning neurologist who discovered critical chemical tools that the body uses to direct cell growth and build nerve networks, opening the way for the study of how those processes can go wrong in diseases like dementia and cancer, died on Sunday at her home in Rome. She was 103.

Her death was announced by Mayor Gianni Alemanno of Rome.

“I don’t use these words easily, but her work revolutionized the study of neural development, from how we think about it to how we intervene,” said Dr. Gerald D. Fishbach, a neuroscientist and professor emeritus at Columbia.

Scientists had virtually no idea how embryo cells built a latticework of intricate connections to other cells when Dr. Levi-Montalcini began studying chicken embryos in the bedroom of her house in Turin, Italy, during World War II. After years of obsessive study, much of it at Washington University in St. Louis with Dr. Viktor Hamburger, she found a protein that, when released by cells, attracted nerve growth from nearby developing cells.

In the early 1950s, she and Dr. Stanley Cohen, a biochemist also at Washington University, isolated and described the chemical, known as nerve growth factor — and in the process altered the study of cell growth and development. Scientists soon realized that the protein gave them a new way to study and understand disorders of neural growth, like cancer, or of degeneration, like Alzheimer’s disease, and to potentially develop therapies.

In the years after the discovery, Dr. Levi-Montalcini, Dr. Cohen and others described a large family of such growth-promoting agents, each of which worked to regulate the growth of specific cells. One, called epidermal growth factor and discovered by Dr. Cohen, plays a central role in breast cancer; in part by studying its behavior, scientists developed drugs to combat the abnormal growth.

In 1986, Dr. Levi-Montalcini and Dr. Cohen shared the Nobel Prize in Physiology or Medicine for their work.

Dr. Cohen, now an emeritus professor at Vanderbilt University, said Dr. Levi-Montalcini possessed a rare combination of intuition and passion, as well as biological knowledge. “She had this feeling for what was happening biologically,” he said. “She was an intuitive observer, and she saw that something was making these nerve connections grow and was determined to find out what it was.”

One of four children, Rita Levi-Montalcini was born in Turin on April 22, 1909, to Adamo Levi, an engineer, and Adele Montalcini, a painter, both Italian Jews who traced their roots to the Roman Empire. In keeping with the Victorian customs of the time, Mr. Levi discouraged his three daughters from entering college, fearing that it would interfere with their lives as wives and mothers.

It was not a future that Rita wanted. She had decided to become a doctor and told her father so. “He listened, looking at me with that serious and penetrating gaze of his that caused me such trepidation,” she wrote in her autobiography, “In Praise of Imperfection” (1988). He also agreed to support her.

She graduated summa cum laude from the University of Turin medical school in 1936. Two years later, Mussolini issued a manifesto barring non-Aryan Italians from having professional careers. She began her research anyway, setting up a small laboratory in her home to study chick embryos, inspired by the work of Dr. Hamburger, a prominent researcher in St. Louis who also worked with the embryos.

During World War II, the family fled Turin for the countryside, and in 1943 the invasion by Germany forced them to Florence. The family returned at the close of the war, in 1945, and Dr. Hamburger soon invited Dr. Levi-Montalcini to work for a year in his lab at Washington University.

She stayed on, becoming an associate professor in 1956 and a full professor in 1958. In 1962, she helped establish the Institute of Cell Biology in Rome and became its first director. She retired from Washington University in 1977, becoming a guest professor and splitting her time between Rome and St. Louis.

Italy honored her in 2001 by making her a senator for life.

An elegant presence, confident and passionate, she was a sought-after speaker until late in life. “At 100, I have a mind that is superior — thanks to experience — than when I was 20,” she said in 2009.

She never married and had no children. In addition to her autobiography, she was the author or co-author of dozens of research studies and received numerous professional awards, including the National Medal of Science.

“It is imperfection — not perfection — that is the end result of the program written into that formidably complex engine that is the human brain,” Dr. Levi-Montalcini wrote in her autobiography, “and of the influences exerted upon us by the environment and whoever takes care of us during the long years of our physical, psychological and intellectual development.”

This article has been revised to reflect the following correction:

Correction: December 30, 2012

An earlier version of this obituary misstated the year Mussolini issued a manifesto barring non-Aryan Italians from having professional careers. It was 1938, not 1936.

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French Council Strikes Down 75% Tax Rate on Rich

PARIS — France’s Constitutional Council on Saturday struck down the Socialist government’s plan to impose a 75 percent marginal income tax rate on the wealthy, a measure that figured prominently among the campaign promises of President François Hollande and that had become a divisive emblem of his approach to cutting the budget deficit.

Prime Minister Jean-Marc Ayrault quickly pledged that the government would reintroduce a revised version of the tax for next year to address the criticisms of the Constitutional Council, which ruled that the measure did not tax affected households equally.

The 75 percent rate was always a symbolic political gesture, as Mr. Hollande himself has acknowledged. It was to expire in two years and would have applied only to annual income above 1 million euros, or about $1.3 million, and so would have affected no more than a few thousand taxpayers.

Tax revenues from the measure would have reached just a few hundred million dollars, little more than a bucket of water in France’s deficit sea; the budget deficit is about $112 billion this year.

The council ruled that the tax was unfair because it would have applied unevenly to different households with the same combined income. A couple making a combined 1.5 million euros a year, for instance, would be exempt from the tax so long as both partners earned less than 1 million euros individually. If one partner earned more than 1 million euros, however, the couple would have been required to pay the 75 percent rate on their combined earnings of more than 1 million.

Mr. Hollande introduced the tax during his presidential campaign — a sharp break from his center-right rival, Nicolas Sarkozy, who had established a tax ceiling of 50 percent of earnings — to prove his leftist credentials in the face of a challenge from a candidate supported by the Communists, Jean-Luc Mélenchon.

Among the opposition on the right, politicians said the 75 percent rate was tantamount to theft, calling it “confiscatory” and insisting that it would drive investors and entrepreneurs out of the country. There have been reports and rumors of as many as 5,000 wealthy French citizens moving out of the country, though there are no official figures.

Most recently, in what has grown into a minor national scandal, it was revealed that the actor Gérard Depardieu would be taking up residence in Belgium, where there is no wealth tax and where the maximum income tax rate is 50 percent.

In France, without the 75 percent tax rate, the highest income tax rate will now be 45 percent. (With the invalidation of the 75 percent rate, French Twitter users have implored Mr. Depardieu to return to France, some facetiously, some not.) The 45 percent rate, which will apply to income above 150,000 euros, or about $198,000, is itself an increase from the previous top rate of 41 percent.

The Constitutional Council approved the increase in its ruling Saturday, along with several general elements of the government’s planned budget for next year: an increase in tax withholdings, the taxing of capital gains at the same rates as income tax and a rise in the wealth tax rates.

It invalidated a proposed 75 percent tax on complementary retirement pensions, however, calling it “confiscatory.” The council reduced the rate to 68 percent.

Mr. Hollande has committed to cutting France’s budget deficit, which stood at 4.5 percent of gross domestic product this year, to 3 percent next year. But he has emphasized tax increases rather than spending cuts. To meet the target, Parliament this month approved a spending freeze that would save about $13 billion, along with $26 billion in additional tax revenues — including those meant to come from the 75 percent rate — for the 2013 budget. But the budget was drawn up on the basis of the government’s growth estimate of 0.8 percent, a number viewed by many economists in France and elsewhere as unrealistically high.

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IHT Rendezvous: How to Blog Asia for the MSM

If you’re a close reader of IHT Rendezvous, you’re jonesing for a fix of Mark McDonald right about now. Our peripatetic Asia blogger’s last day writing was Wednesday. He’s moving on to other assignments. We’ll miss him.

Since Rendezvous launched in January, Asia has been one of the two main focuses of our coverage and our audience. Indeed, before the Great Firewall began the shutout of nearly all content from The New York Times, the International Herald Tribune and Rendezvous, China was Rendezvous’ third country by audience — we had more readers only in the United States and Canada.

Moreover, China posts dominate our Top 20 most read and most commented on posts.

The driving force behind that coverage has been Mark McDonald. From Hong Kong, he produced some of our most commented on and most read posts of 2012. Here are our Asia Top 10 of 2012.

When Rendezvous launched, our goal was to connect and engage with intelligent readers with a passionate interest in global affairs. We aimed to host the International Herald Tribune’s corner of the global conversation taking place on the Web, reporting on things that mattered to those readers — and pointing to the best of others’ reporting on them: from politics and economics to sports and the arts.

Basically, what the IHT has been doing for 125 years.

Mark has been a crucial part of our success in curating our piece of the global conversation. His news acumen, developed over nearly half a century of reporting, editing and teaching, coupled with his take-no-prisoners analysis, have made the Web pages of Rendezvous both wondrously broad and deeply provoking.

He has authored many of our most trenchant posts and, without a doubt, sparked our most intense discussions. Whether writing about Jeremy Lin, the Chinese-American N.B.A. wonder, Chinese Web censorship, the true cost of U.S. military drone strikes, China’s high-pressure annual college entrance exam or natural disasters in the Philippines, Mark has engaged and enlightened readers.

Didi Kirsten Tatlow, an insightful and well-connected journalist based in Beijing will pick up where Mark left off. In her weekly contributions to Rendezvous, Didi has already demonstrated what she can do: from telling the harrowing story of how a reporter interviews a dissident to how mainland Chinese saw — literally — November’s historic Party Congress, from the stakes in the confrontation over the East China Sea islands to the personal side of raising children or buying a puppy in Beijing.

We can’t wait to see how she will deepen our understanding of China on a daily basis.

Mark will remain in the pages and Web pages of the IHT. And occasionally visiting us here on RDV. We’ll be following him. And I suspect many of you will be too.

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Unboxed: Big Data Is Great, but Don’t Forget Intuition

Andrew McAfee, principal research scientist at the M.I.T. Center for Digital Business, led off the conference by saying that Big Data would be “the next big chapter of our business history.” Next on stage was Erik Brynjolfsson, a professor and director of the M.I.T. center and a co-author of the article with Dr. McAfee. Big Data, said Professor Brynjolfsson, will “replace ideas, paradigms, organizations and ways of thinking about the world.”

These drumroll claims rest on the premise that data like Web-browsing trails, sensor signals, GPS tracking, and social network messages will open the door to measuring and monitoring people and machines as never before. And by setting clever computer algorithms loose on the data troves, you can predict behavior of all kinds: shopping, dating and voting, for example.

The results, according to technologists and business executives, will be a smarter world, with more efficient companies, better-served consumers and superior decisions guided by data and analysis.

I’ve written about what is now being called Big Data a fair bit over the years, and I think it’s a powerful tool and an unstoppable trend. But a year-end column, I thought, might be a time for reflection, questions and qualms about this technology.

The quest to draw useful insights from business measurements is nothing new. Big Data is a descendant of Frederick Winslow Taylor’s “scientific management” of more than a century ago. Taylor’s instrument of measurement was the stopwatch, timing and monitoring a worker’s every movement. Taylor and his acolytes used these time-and-motion studies to redesign work for maximum efficiency. The excesses of this approach would become satirical grist for Charlie Chaplin’s “Modern Times.” The enthusiasm for quantitative methods has waxed and waned ever since.

Big Data proponents point to the Internet for examples of triumphant data businesses, notably Google. But many of the Big Data techniques of math modeling, predictive algorithms and artificial intelligence software were first widely applied on Wall Street.

At the M.I.T. conference, a panel was asked to cite examples of big failures in Big Data. No one could really think of any. Soon after, though, Roberto Rigobon could barely contain himself as he took to the stage. Mr. Rigobon, a professor at M.I.T.’s Sloan School of Management, said that the financial crisis certainly humbled the data hounds. “Hedge funds failed all over the world,” he said.

THE problem is that a math model, like a metaphor, is a simplification. This type of modeling came out of the sciences, where the behavior of particles in a fluid, for example, is predictable according to the laws of physics.

In so many Big Data applications, a math model attaches a crisp number to human behavior, interests and preferences. The peril of that approach, as in finance, was the subject of a recent book by Emanuel Derman, a former quant at Goldman Sachs and now a professor at Columbia University. Its title is “Models. Behaving. Badly.”

Claudia Perlich, chief scientist at Media6Degrees, an online ad-targeting start-up in New York, puts the problem this way: “You can fool yourself with data like you can’t with anything else. I fear a Big Data bubble.”

The bubble that concerns Ms. Perlich is not so much a surge of investment, with new companies forming and then failing in large numbers. That’s capitalism, she says. She is worried about a rush of people calling themselves “data scientists,” doing poor work and giving the field a bad name.

Indeed, Big Data does seem to be facing a work-force bottleneck.

“We can’t grow the skills fast enough,” says Ms. Perlich, who formerly worked for I.B.M. Watson Labs and is an adjunct professor at the Stern School of Business at New York University.

A report last year by the McKinsey Global Institute, the research arm of the consulting firm, projected that the United States needed 140,000 to 190,000 more workers with “deep analytical” expertise and 1.5 million more data-literate managers, whether retrained or hired.

Thomas H. Davenport, a visiting professor at the Harvard Business School, is writing a book called “Keeping Up With the Quants” to help managers cope with the Big Data challenge. A major part of managing Big Data projects, he says, is asking the right questions: How do you define the problem? What data do you need? Where does it come from? What are the assumptions behind the model that the data is fed into? How is the model different from reality?

Society might be well served if the model makers pondered the ethical dimensions of their work as well as studying the math, according to Rachel Schutt, a senior statistician at Google Research.

“Models do not just predict, but they can make things happen,” says Ms. Schutt, who taught a data science course this year at Columbia. “That’s not discussed generally in our field.”

Models can create what data scientists call a behavioral loop. A person feeds in data, which is collected by an algorithm that then presents the user with choices, thus steering behavior.

Consider Facebook. You put personal data on your Facebook page, and Facebook’s software tracks your clicks and your searches on the site. Then, algorithms sift through that data to present you with “friend” suggestions.

Understandably, the increasing use of software that microscopically tracks and monitors online behavior has raised privacy worries. Will Big Data usher in a digital surveillance state, mainly serving corporate interests?

Personally, my bigger concern is that the algorithms that are shaping my digital world are too simple-minded, rather than too smart. That was a theme of a book by Eli Pariser, titled “The Filter Bubble: What the Internet Is Hiding From You.”

It’s encouraging that thoughtful data scientists like Ms. Perlich and Ms. Schutt recognize the limits and shortcomings of the Big Data technology that they are building. Listening to the data is important, they say, but so is experience and intuition. After all, what is intuition at its best but large amounts of data of all kinds filtered through a human brain rather than a math model?

At the M.I.T. conference, Ms. Schutt was asked what makes a good data scientist. Obviously, she replied, the requirements include computer science and math skills, but you also want someone who has a deep, wide-ranging curiosity, is innovative and is guided by experience as well as data.

“I don’t worship the machine,” she said.

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Victim of Gang Rape in India Dies at Hospital in Singapore

NEW DELHI — A young woman who had been in critical condition since she was raped two weeks ago by a group of men who lured her onto a bus here died early Saturday, an official at the hospital in Singapore that was caring for her said.

The woman, a 23-year-old physiotherapy student whose rape on Dec. 16 had served as a reminder of the dangerous conditions women face in India, died “peacefully,” according to a statement by Dr. Kelvin Loh, the chief executive of Mount Elizabeth Hospital in Singapore.

The woman, whose intestines were removed because of injuries caused by a metal rod used during the rape, has not been identified. She was flown to Singapore on Wednesday night after undergoing three abdominal operations at a local hospital. She had also suffered a major brain injury, cardiac arrest and infections of the lungs and abdomen. “She was courageous in fighting for her life for so long against the odds, but the trauma to her body was too severe for her to overcome,” Dr. Loh’s statement said.

The police have arrested six people in connection with the attack, Indian officials said.

Revulsion and anger over the rape have galvanized India, where women regularly face sexual harassment and assault, and where neither the police nor the judicial system is seen as adequately protecting them.

As government officials and the police appealed for calm, protesters gathered in New Delhi at Jantar Mantar, a popular site for demonstrations, just after dawn. The roads leading to India Gate, the site of earlier protests that had turned violent, had been barricaded by the police, and nearby subway stations were closed. More than 40 police units have been deployed in the area, including 28 units of the Central Reserve Police Force, which are national anti-insurgency troops.

Top officials now say that further change is needed, and Prime Minister Manmohan Singh expressed his “deepest condolences.”

“We have already seen the emotions and energies this incident has generated,” he said in a statement. “It would be a true homage to her memory if we are able to channelize these emotions and energies into a constructive course of action.” The government, he said, is examining “the penal provisions that exist for such crimes and measures to enhance the safety and security of women.”

The six men arrested in the case will be charged with murder, the Delhi police said Saturday morning, as they, too, asked citizens to remain calm.

"We appeal to the people that they maintain peace," Satyendra Garg, a joint commissioner of the police, said in a televised interview. "We want the situation in Delhi to normalize as soon as possible," he said. Until then, he added, Delhi commuters will have to plan their travel carefully and be aware of the restrictions.

Activists and lawyers in India have long said that the police are insensitive when dealing with crimes against women, and that therefore many women do not report cases of sexual violence.

India, which has more than 1.3 billion people, recorded 24,000 cases of rape last year, a figure that has increased by 25 percent in the past six years. On Thursday, Delhi government officials said they would register the names and photographs of convicted rapists on the Delhi police Web site, the beginning of a national registry for rapists.

The family of an 18-year-old woman in the northern Indian state of Punjab who was raped last month by two men and committed suicide on Wednesday blamed the police on Friday for her death.

Relatives of the woman say she killed herself because the police delayed registering the case or arresting the rapists.

If the police “had done their job, she would be alive today,” the woman’s sister, Charanjit Kaur, 28, said in a phone interview. “They didn’t listen to us; they didn’t act.”

On Friday, the Punjab high court intervened, asking the police to explain their delay. Three police officers have been suspended in the case, according to news media reports. Punjab police officials did not respond to phone calls seeking comment.

Ms. Kaur said the men abducted her sister from a place of worship near the small town of Badshahpur on Nov. 13, then drugged and raped her repeatedly.

When her sister reported the attack at the local police station a few days later, she was asked to describe it in graphic detail and was “humiliated,” Ms. Kaur said. Over the next few days, she said, her mother and sister were repeatedly called to the police station and forced to sit all day.

But the case was not registered for two weeks, as police officials and village elders tried to broker a deal between the men accused of the rape and the victim. In some parts of India, women are commonly married to men who have raped them.

Ms. Kaur said the police told her family that, because they were poor, they would not be able to fight the matter in court. “They kept putting pressure on my family to take money or marry the accused or just somehow settle the matter,” she said.

After no agreement was reached, the police registered the case, but made no arrests.

The victim was stalked by the men accused of the rape, who threatened to kill her and her family if she refused to drop the complaint, her suicide note said.

“They have ruined my life,” the note read, Ms. Kaur said. It named two men and a woman who allegedly helped them in the kidnapping. Those men have been arrested, the police said.

Keith Bradsher contributed reporting from Hong Kong, and Sruthi Gottipati contributed from New Delhi.

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China Toughens Restrictions on Internet Use

How Hwee Young/European Pressphoto Agency

New measures by the Chinese government could chill some of the vibrant discourse on Twitter-like microblogs.

HONG KONG — The Chinese government issued new rules on Friday requiring Internet users to provide their real names to service providers, while assigning Internet companies greater responsibility for deleting forbidden postings and reporting them to the authorities.

The decision came as government censors have sharply stepped up restrictions on China’s international Internet traffic in recent weeks. The restrictions are making it harder for businesses to protect commercial secrets and for individuals to view overseas Web sites that the Chinese Communist Party deems politically sensitive.

The new regulations, issued by the Standing Committee of the National People’s Congress, allow Internet users to continue to adopt pseudonyms for their online postings, but only if they first provide their real names to service providers, a measure that could chill some of the vibrant discourse on the country’s Twitter-like microblogs. The authorities periodically detain and even jail Internet users for politically sensitive comments, such as calls for a multiparty democracy or accusations of impropriety by local officials.

Any entity providing Internet access, including over fixed-line or mobile phones, “should when signing agreements with users or confirming provision of services, demand that users provide true information about their identities,” the committee ordered.

In recent weeks, Internet users in China have exposed a series of sexual and financial scandals that have led to the resignations or dismissals of at least 10 local officials. International news media have also published a series of reports in recent months on the accumulation of wealth by the family members of China’s leaders, and some Web sites carrying such reports, including Bloomberg’s and the English- and Chinese-language sites of The New York Times, have been assiduously blocked, while Internet comments about them have been swiftly deleted.

The regulations issued Friday build on a series of similar administrative guidelines and municipal rules issued over the past year. China’s mostly private Internet service providers have been slow to comply with them, fearing the reactions of their customers. The committee’s decision has much greater legal force, and puts far more pressure on Chinese Internet providers to comply more quickly and more comprehensively, Internet specialists said.

In what appeared to be an effort to make the decision more palatable to the Chinese public, the committee also included a mandate for businesses in China to be more cautious in gathering and protecting electronic data.

“Nowadays on the Internet there are very serious problems with citizens’ personal electronic information being recklessly collected, used without approval, illegally disclosed, and even traded and sold,” Li Fei, a deputy director of the committee’s legislative affairs panel, said on Friday at a news conference in Beijing. “There are also a large number of cases of invasive attacks on information systems to steal personal electronic information, as well as lawbreaking on the Internet through swindles and through defaming and slandering others.”

Mr. Li denied that the government was seeking to prevent the exposure of corruption.

“When citizens exercise these rights according to the law, no organization or individual can use any reason or excuse to interfere, and cannot suppress them or exact revenge,” he said. “At the same time, when citizens exercise their rights, including through use of the Internet, they should stay within the bounds of the Constitution and the laws, and must not harm the legitimate rights and interests of the state, society, the collective or of other citizens.”

A spokesman for the National People’s Congress said that 145 members of the committee voted in favor of the new rules, with 5 abstaining and 1 voting against them.

The requirement for real names appeared to be aimed particularly at cellphone companies and other providers of mobile Internet access. At the news conference, an official from the Ministry of Industry and Information Technology, Zhao Zhiguo, said that nearly all fixed-line services now had real-name registration, but that only about 70 percent of mobile phones were registered under real names.

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Memphis Aims to Be a Friendlier Place for Cyclists

Lance Murphey for The New York Times

The Shelby Farms Greenline, which replaced a Memphis rail line.

MEMPHIS — John Jordan, a 64-year-old condo appraiser here, has been pedaling his cruiser bicycle around town nearly every day, tooling about at lunchtime or zipping to downtown appointments.

“It’s my cholesterol-lowering device,” said Mr. Jordan, clad in a leather vest and wearing a bright white beard. “The problem is, the city needs to educate motorists to not run over” the bicyclists.

Bike-friendly behavior has never come naturally to Memphis, which has long been among the country’s most perilous places for cyclists. In recent years, though, riders have taken to the streets like never before, spurred by a mayor who has worked to change the way residents think about commuting.

Mayor A. C. Wharton Jr., elected in 2009, assumed office a year after Bicycling magazine named Memphis one of the worst cities in America for cyclists, not the first time the city had received such a biking dishonor. But Mr. Wharton spied an opportunity.

In 2008, Memphis had a mile and a half of bike lanes. There are now about 50 miles of dedicated lanes, and about 160 miles when trails and shared roads are included. The bulk of the nearly $1 million investment came from stimulus money and other federal sources, and Shelby County, which includes Memphis, was recently awarded an additional $4.7 million for bike projects.

In June, federal officials awarded Memphis $15 million to turn part of the steel truss Harahan Bridge, which spans the Mississippi River, into a bike and pedestrian crossing. Scheduled to open in about two years, the $30 million project will link downtown Memphis with West Memphis, Ark.

“We need to make biking part of our DNA,” Mr. Wharton said. “I’m trying to build a city for the people who will be running it 5, 10, 15 years from now. And in a region known to some for rigid thinking, the receptivity has been remarkable.”

City planners are using bike lanes as an economic development tool, setting the stage for new stores and enhanced urban vibrancy, said Kyle Wagenschutz, the city’s bike-pedestrian coordinator, a position the mayor created.

“The cycling advocates have been vocal the past 10 years, but nothing ever happened,” Mr. Wagenschutz said. “It took a change of political will to catalyze the movement.”

Memphis, with a population of 650,000, is often cited among the unhealthiest, most crime-ridden and most auto-centric cities in the country. Investments in bicycling are being viewed here as a way to promote healthy habits, community bonds and greater environmental stewardship.

But as city leaders struggle with a sprawling landscape — Memphis covers about the same amount of land as Dallas, yet has half the population — their persistence has run up against another bedeviling factor: merchants and others who are disgruntled about the lanes.

A clash between merchants and bike advocates flared last year after the mayor announced new bike lanes on Madison Avenue, a commercial artery, that would remove two traffic lanes. Many merchants, like Eric Vernon, who runs the Bar-B-Q Shop, feared that removing car lanes would hurt businesses and cause parking confusion. Mr. Vernon said that sales had not fallen significantly since the bike lanes were installed, but that he thought merchants were left out of the process.

On McLean Boulevard, a narrow residential strip where roadside parking was replaced by bike paths, homeowners cried foul. The city reached a compromise with residents in which parking was outlawed during the day but permitted at night, when fewer cyclists were out. Mr. Wagenschutz called the nocturnal arrangement a “Cinderella lane.”

Some residents, however, were not mollified. “I’m not against bike lanes, but we’re isolated because there’s no place to park,” said Carey Potter, 53, a longtime resident who started a petition to reinstate full-time parking.

The changes have been panned by some members of the City Council. Councilman Jim Strickland went as far as to say that the bike signs that dot the streets add “to the blight of our city.”

Tensions aside, the mayor’s office says that the potential economic ripple effect of bike lanes is proof that they are a sound investment.

A study in 2011 by the University of Massachusetts found that building bike lanes created more jobs — about 11 per $1 million spent — than any other type of road project. Several bike shops here have expanded to accommodate new cyclists, including Midtown Bike Company, which recently moved to a location three times the size of its former one. “The new lanes have been great for business,” said the manager, Daniel Duckworth.

Wanda Rushing, a professor at the University of Memphis and an expert on urban change in the South, said bike improvements were of a piece with a development model sweeping the region: bolstering transportation infrastructure and population density in the inner city.

“Memphis is not alone in acknowledging that sprawl is not sustainable,” Dr. Rushing said. “Economic necessity is a pretty good melding substance.”

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Memphis Aims to Be a Friendlier Place for Cyclists

Lance Murphey for The New York Times

The Shelby Farms Greenline, which replaced a Memphis rail line.

MEMPHIS — John Jordan, a 64-year-old condo appraiser here, has been pedaling his cruiser bicycle around town nearly every day, tooling about at lunchtime or zipping to downtown appointments.

“It’s my cholesterol-lowering device,” said Mr. Jordan, clad in a leather vest and wearing a bright white beard. “The problem is, the city needs to educate motorists to not run over” the bicyclists.

Bike-friendly behavior has never come naturally to Memphis, which has long been among the country’s most perilous places for cyclists. In recent years, though, riders have taken to the streets like never before, spurred by a mayor who has worked to change the way residents think about commuting.

Mayor A. C. Wharton Jr., elected in 2009, assumed office a year after Bicycling magazine named Memphis one of the worst cities in America for cyclists, not the first time the city had received such a biking dishonor. But Mr. Wharton spied an opportunity.

In 2008, Memphis had a mile and a half of bike lanes. There are now about 50 miles of dedicated lanes, and about 160 miles when trails and shared roads are included. The bulk of the nearly $1 million investment came from stimulus money and other federal sources, and Shelby County, which includes Memphis, was recently awarded an additional $4.7 million for bike projects.

In June, federal officials awarded Memphis $15 million to turn part of the steel truss Harahan Bridge, which spans the Mississippi River, into a bike and pedestrian crossing. Scheduled to open in about two years, the $30 million project will link downtown Memphis with West Memphis, Ark.

“We need to make biking part of our DNA,” Mr. Wharton said. “I’m trying to build a city for the people who will be running it 5, 10, 15 years from now. And in a region known to some for rigid thinking, the receptivity has been remarkable.”

City planners are using bike lanes as an economic development tool, setting the stage for new stores and enhanced urban vibrancy, said Kyle Wagenschutz, the city’s bike-pedestrian coordinator, a position the mayor created.

“The cycling advocates have been vocal the past 10 years, but nothing ever happened,” Mr. Wagenschutz said. “It took a change of political will to catalyze the movement.”

Memphis, with a population of 650,000, is often cited among the unhealthiest, most crime-ridden and most auto-centric cities in the country. Investments in bicycling are being viewed here as a way to promote healthy habits, community bonds and greater environmental stewardship.

But as city leaders struggle with a sprawling landscape — Memphis covers about the same amount of land as Dallas, yet has half the population — their persistence has run up against another bedeviling factor: merchants and others who are disgruntled about the lanes.

A clash between merchants and bike advocates flared last year after the mayor announced new bike lanes on Madison Avenue, a commercial artery, that would remove two traffic lanes. Many merchants, like Eric Vernon, who runs the Bar-B-Q Shop, feared that removing car lanes would hurt businesses and cause parking confusion. Mr. Vernon said that sales had not fallen significantly since the bike lanes were installed, but that he thought merchants were left out of the process.

On McLean Boulevard, a narrow residential strip where roadside parking was replaced by bike paths, homeowners cried foul. The city reached a compromise with residents in which parking was outlawed during the day but permitted at night, when fewer cyclists were out. Mr. Wagenschutz called the nocturnal arrangement a “Cinderella lane.”

Some residents, however, were not mollified. “I’m not against bike lanes, but we’re isolated because there’s no place to park,” said Carey Potter, 53, a longtime resident who started a petition to reinstate full-time parking.

The changes have been panned by some members of the City Council. Councilman Jim Strickland went as far as to say that the bike signs that dot the streets add “to the blight of our city.”

Tensions aside, the mayor’s office says that the potential economic ripple effect of bike lanes is proof that they are a sound investment.

A study in 2011 by the University of Massachusetts found that building bike lanes created more jobs — about 11 per $1 million spent — than any other type of road project. Several bike shops here have expanded to accommodate new cyclists, including Midtown Bike Company, which recently moved to a location three times the size of its former one. “The new lanes have been great for business,” said the manager, Daniel Duckworth.

Wanda Rushing, a professor at the University of Memphis and an expert on urban change in the South, said bike improvements were of a piece with a development model sweeping the region: bolstering transportation infrastructure and population density in the inner city.

“Memphis is not alone in acknowledging that sprawl is not sustainable,” Dr. Rushing said. “Economic necessity is a pretty good melding substance.”

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Unemployment Deepens the Loss from Hurricane Sandy

In the Rockaways, none of the 450 employees of the Madelaine Chocolate Company will receive a paycheck this week. Until a few days ago, the floor of the company’s 200,000-square-foot complex was a muddy, sludgy, chocolaty mess, and its factory has temporarily closed. Outside, foiled Santas and candy roses lay victim to the hurricane.

Not far away, the cash register at Fast Break, a local deli, is silent, its employees out of work. Next door, Browns Hardware will be shut until at least February.

The story is much the same throughout the region, where residents who lost their jobs as a result of Hurricane Sandy are streaming into career centers in New York and New Jersey, desperate for a paycheck.

“Here, it’s like anyone who didn’t lose his home lost his job,” said Juan Colon, 57, who worked at Madelaine for 26 years.

The devastating storm, which destroyed many businesses, left tens of thousands of New York and New Jersey residents unemployed. How long they will remain jobless is uncertain. In some cases, they may be able to resume their old jobs as their employers get back on their feet, assuming those businesses reopen.

The latest jobs reports from New York and New Jersey, for November, suggested the toll the storm took on the local labor force — New York State lost 29,100 private jobs, while New Jersey lost 8,100.

In the same month, New Jersey processed an unprecedented number of first-time claims for unemployment insurance: 138,661, surpassing the previous record of 83,518 established in December 2009, which came at the height of the recession. And in New York, 158,204 individuals filed initial claims for unemployment, nearing the record set in January 2009, also at the height of the recession.

The unemployment problem has eased a bit as “Grand Reopening” signs have popped up at mattress stores, gas stations and other businesses. And the number of people filing for unemployment for the first time has slowed significantly in recent weeks.

But there are still many people struggling to pay their bills, finding themselves out of a job at a time when the overall unemployment picture remains bleak.

“We were spared the storm, but not the repercussions,” said Hector Valle, 57, who lives on Staten Island. The hurricane left Mr. Valle’s home untouched, but dealt his family a mighty blow: His wife worked at Bellevue Hospital Center as a nurse’s assistant for the last 25 years. When the hurricane shuttered Bellevue, she was transferred to Woodhull Medical Center — a move that caused her to lose her overtime work, as well as part of her night differential pay.

The couple’s income fell to $1,400 a month from $2,200 a month.

“There’s nobody coming to my house to help,” said Mr. Valle, who has been unemployed for three years, “because they’re like, ‘You’re fine.’ We’re not fine.”

Those most affected are the people who already have trouble finding jobs: older workers, single parents with child-care concerns and immigrants who speak little English.

And the storm has further handicapped many of those looking for new work: Interview outfits lie moldy in Dumpsters; computers have been destroyed, résumé files gone forever. Many lack access to transportation. “There are a lot of barriers to employment, from no phone to no home,” said Thomas Munday, director of a city-run Workforce 1 Career Center on Staten Island.

When they do get jobs, many residents will face new, longer commutes, and fewer benefits.

At the Madelaine chocolate company this month, Jorge Farber, the president and chief executive, shuffled past ribbons of ruined Reese’s foil, wearing yellow rubber shoe covers slicked with slime. He intends to reopen, but could not estimate a date.

The company is the largest employer in the Rockaways, and normally pumps out 100,000 pounds of chocolate a day. It was started 64 years ago by two men fleeing the Holocaust, and about a quarter of its employees are Haitian immigrants. Many had family members who died in the 2010 Haitian earthquake.

Some of the laid-off employees have packaged chocolate here for decades. For them, Mr. Farber said, the company is a good provider: Line workers, many of whom do not speak English, make about $15 an hour, plus benefits. It would be difficult for them to find new jobs with the same salary and benefits.

Over nearly three decades, Mr. Colon rose to a supervisor position, earning about $900 a week.

When the storm left him without a job, he signed up for unemployment benefits. But he is getting only $325 a week, he said.

“I don’t know what I will do,” said Mr. Colon, who lives in a fourth-floor apartment in Far Rockaway with his wife, 22-year-old daughter and a grandchild. “Nobody can survive on $300.”

There is no telling when the company will be able to bring him back.

Some may find work related to hurricane recovery. New York State qualified for a federal grant that will allow it to hire 5,000 temporary cleanup workers for jobs that last about six months and pay $11 to $15 an hour. The city has already hired 788 people to fill some of those temporary jobs, according to Angie Kamath, deputy commissioner of work force development for the city’s Department of Small Business Services. And it will hire 400 more in the coming weeks, she said.

“We hope and expect that that number will continue to grow,” Ms. Kamath said. “The state has every intention to go after additional funding.”

The storm’s aftermath has also created private jobs. Areas hit by hurricanes almost always see a temporary boost in employment because of rebuilding activities, said Allison Plyer, chief demographer at the Greater New Orleans Community Data Center, which tracked employment after Hurricane Katrina. “There will be no doubt billions of dollars of private and flood insurance to rebuild homes and businesses,” she said.

But few of those jobs will last. Many will go to out-of-state contractors. And not everyone who is out of work can fill labor-intensive cleanup positions.

Ms. Plyer also cautioned against using the experience of Hurricane Katrina to predict what will happen after Hurricane Sandy.

After Hurricane Katrina, residential areas were destroyed, while New Orleans’s business district remained relatively intact. Businesses bounced back, but the housing stock and the area’s population did not, leaving employers seeking workers. “Unemployment rates sunk to their lowest level,” Ms. Plyer said, continuing: “All the McDonald’s were offering signing bonuses. You couldn’t find anyone to work for them.”

“Katrina entailed a massive population displacement that basically emptied out the city,” she added.

On Staten Island, unemployed residents inundated a city-operated career center in St. George after the storm. About 500 people showed up during two days to apply for 240 storm cleanup jobs. (Normally 350 individuals will seek employment assistance during a five-day week.)

Mr. Valle, who once worked as a customer service representative, waited outside the center hoping to land one of those cleanup jobs. He left when all the positions had been filled.

“That was like an audition for ‘American Idol,’ ” he said. “I have never been in line with 500, 600 people for a job in my life.”

His wife, he said, had been their support for the last three years. “Sandy just yanked that from under us,” he said.

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