Hispanic Pregnancies Fall in U.S. as Women Choose Smaller Families

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.”

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Gadgetwise Blog: Q&A: How to Cut a LinkedIn Connection

I accepted a LinkedIn invitation from someone who looked like a good professional contact, but has just been spamming me with messages. How do I get rid of this person?

Although the LinkedIn social-networking site skews more toward people looking to make business connections, it can still suffer from the same annoyances that plague Facebook, Twitter, and other services. If you need to dump someone you have connected with on the site, start by logging into your LinkedIn account on the Web.

At the top of your profile page, click the Contacts link. On the right side of the Contacts page, click Remove Connections. When your list of LinkedIn contacts appears, turn on the checkbox next to the name or names of the people you wish to remove. Click the Remove Connection button. Your newly severed connection is not notified that you have parted ways.

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The North Korean Leader, Kim Jong-un, Makes Overture to South

SEOUL, South Korea — The North Korean leader, Kim Jong-un, called for an end to the “confrontation” with rival South Korea on Tuesday in what appeared to be an overture to the incoming South Korean president as she was cobbling together South Korea’s new policy on the North.

North Korea issued a major policy statement on Tuesday, New Year’s Day, following a tradition set by Mr. Kim’s late grandfather, the North Korean founder Kim Il-sung, and his late father, Kim Jong-il, who died in December last year, bequeathing the dynastic rule to Mr. Kim.

Mr. Kim was the first supreme North Korean leader to issue the statement as his personal speech since his grandfather last did so before his death in 1994. During the rule of his reclusive father, Kim Jong-il, the statement — which laid out policy guidelines for the new year and was studied by all branches of the party, state and military — was issued as a joint editorial of the country’s main official media.

Mr. Kim’s speech on Tuesday, which was broadcast through the North’s state-run television and radio stations, was another sign that the young leader was trying to imitate his grandfather Kim Il-sung, who in life was considered a more people-friendly leader and is still widely revered among North Koreans.

Although Mr. Kim inherited the key policies of his father, outside analysts see him as trying to distance himself from the ruling style of his father, Kim Jong-il, who was more feared than respected among his people and whose rule was marked by a famine.

In his speech, Mr. Kim, echoed themes of previous New Year’s messages, emphasizing that improving the living standards of North Koreans and rejuvenating the agricultural and light industries were among the improvised country’s main priorities.

But he revealed no details of any planned economic policy changes. He only mentioned a need to “improve economic leadership and management” and “spread useful experiences created in various work units.”

Since July, various news outlets in South Korea have reported that Mr. Kim’s regime has begun carrying out cautious economic incentives aimed at bolstering productivity at farms and factories. Some reports said the state was considering letting farmers keep at least 30 percent of their yield; currently, it is believed, they are allowed to sell only a surplus beyond a government-set quota that is rarely met.

Mr. Kim also vowed to strengthen his country’s military, calling for the development of more advanced weapons. But he made no mention of relations with the United States or the international efforts to halt North Korea’s nuclear weapons program. He simply reiterated that his government was willing to “expand and improve upon friendly and cooperative relationships with all countries friendly to us.”

Mr. Kim’s speech followed the successful launching of a satellite aboard a long-range rocket in December. North Korea’s propagandists have since been busy billing the launch as a symbol of what they called the North’s soaring technological might and Mr. Kim’s peerless leadership. Washington considered it a test of long-range ballistic missile technology and a violation of United Nations Security Council resolutions banning such tests, and is seeking more sanctions to impose on the isolated country.

But it was his allusion to relations with South Korea that signified a departure in tone.

“A key to ending the divide of the nation and achieving reunification is to end the situation of confrontation between the North and the South,” Mr. Kim said. “A basic precondition to improving North-South relations and advancing national reunification is to honor and implement North-South joint declarations.”

He was referring to two inter-Korean summit agreements, signed in 2000 and 2007, when two South Korean presidents, Kim Dae-jung and Roh Moo-hyun, were pursuing a “Sunshine Policy” of reconciliation and economic cooperation with North Korea and met Mr. Kim’s father in the North Korean capital, Pyongyang.

As a result of those agreements, billions of dollars of South Korean investment, aid and trade flowed into the North. Billions more were promised in investments in shipyards and factory parks, as the South Korean leaders believed that economic good will was the best way of encouraging North Korea to shed its isolation and hostility while reducing the economic gap between the two Koreas and the cost of reunification in the future.

But that warming of ties ended when conservatives came to power in South Korea with the inauguration of President Lee Myung-bak in 2008. When Mr. Lee was president-elect, North Korea offered a similar overture as Tuesday’s. But Mr. Lee suspended any large aid or investment barring a significant progress toward dismantling the North’s nuclear weapons programs, and inter-Korean relations spiraled down, further aggravated by the North’s shelling of a South Korean island in 2010.

The incoming leader of South Korea, Park Geun-hye, who is the presidential candidate of Mr. Lee’s governing party, kept the conservatives in power by winning the Dec. 19 election. She is the daughter of Park Chung-hee, the former military strongman under whose rule from 1961 till 1979 a staunchly anti-Communist, pro-American political establishment took root in South Korea.

North Korea had engineered a couple of assassination attempts on Ms. Park’s father, one of which resulted in her mother’s death in 1974. But Ms. Park also traveled to Pyongyang in 2002 and discussed inter-Korean reconciliation with Kim Jong-il.

During her campaign for president, she said that if elected, she would decouple humanitarian aid from politics and try to hold a summit meeting with Kim Jong-un. She was in part reacting to widespread criticism in South Korea that Mr. Lee’s hard-line policy did little to change the North’s behavior.

During the campaign, however, Ms. Park stuck to Mr. Lee’s stance on the most contentious issue of large-scale investment, which the North considers crucial.

Ms. Park, like the current president, insisted that any large-scale economic investments be preceded by the “building of trust” through progress in denuclearizing North Korea.

Peace bought with “shoveling” of unrestrained aid under the Sunshine Policy was “a fake,” she said, citing the North’s long history of using military threats to win economic concessions.

North Korea called her a “confrontational maniac” and “fascist.” But since her election, it has refrained from attacking her.

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Chinese Regulator’s Family Profited From Stake in Insurer

The New York Times

The Ping An International Finance Center, being built in Shenzhen. Ping An is among the world’s biggest financial institutions.

SHANGHAI — Relatives of a top Chinese regulator profited enormously from the purchase of shares in a once-struggling insurance company that is now one of China’s biggest financial powerhouses, according to interviews and a review of regulatory filings.

The regulator, Dai Xianglong, was the head of China’s central bank and also had oversight of the insurance industry in 2002, when a company his relatives helped control bought a big stake in Ping An Insurance that years later came to be worth billions of dollars. The insurer was drawing new investors ahead of a public stock offering after averting insolvency a few years earlier.

With growing attention on the wealth amassed by families of the politically powerful in China, the investments of Mr. Dai’s relatives illustrate that the riches extend beyond the families of the political elites to the families of regulators with control of the country’s most important business and financial levers. Mr. Dai, an economist, has since left his post with the central bank and now manages the country’s $150 billion social security fund, one of the world’s biggest investment funds.

How much the relatives made in the deal is not known, but analysts say the activity raises further doubts about whether the capital markets are sufficiently regulated in China.

Nicholas C. Howson, an expert in Chinese securities law at the University of Michigan Law School, said: “While not per se illegal or even evidence of corruption, these transactions feed into a problematic perception that is widespread in the P.R.C.: the relatives of China’s highest officials are given privileged access to pre-I.P.O. properties.” He was using the abbreviation for China’s official name, the People’s Republic of China.

The company that bought the Ping An stake was controlled by a group of investment firms, including two set up by Mr. Dai’s son-in-law, Che Feng, as well as other firms associated with Mr. Che’s relatives and business associates, the regulatory filings show.

The company, Dinghe Venture Capital, got the shares for an extremely good price, the records show, paying a small fraction of what a large British bank had paid per share just two months earlier. The company paid $55 million for its Ping An shares on Dec. 26, 2002. By 2007, the last time the value of the investment was made public, the shares were worth $3.1 billion.

In its investigation, The New York Times found no indication that Mr. Dai had been aware of his relatives’ activities, or that any law had been broken. But the relatives appeared to have made a fortune by investing in financial services companies over which Mr. Dai had regulatory authority.

In another instance, in November 2002, Dinghe acquired a big stake in Haitong Securities, a brokerage firm that also fell under Mr. Dai’s jurisdiction, according to the brokerage firm’s Shanghai prospectus.

By 2007, just after Haitong’s public listing in Shanghai, those shares were worth about $1 billion, according to public filings. Later, between 2007 and 2010, Mr. Dai’s wife, Ke Yongzhen, was chairwoman on Haitong’s board of supervisors.

A spokesman for Mr. Dai and the National Social Security Fund did not return phone calls seeking comment. A spokeswoman for Mr. Che, the son-in-law, denied by e-mail that he had ever held a stake in Ping An. The spokeswoman said another businessman had bought the Ping An shares and then, facing financial difficulties, sold them to a group that included Mr. Che’s friends and relatives, but not Mr. Che.

The businessman “could not afford what he has created, so he had to sell his shares all at once,” the spokeswoman, Jenny Lau, wrote in an e-mail.

The corporate records reviewed by The Times, however, show that Mr. Che, his relatives and longtime business associates set up a complex web of companies that effectively gave him and the others control of Dinghe Venture Capital, which made the investments in Ping An and Haitong Securities. The records show that one of the companies later nominated Mr. Che to serve on the Ping An board of supervisors. His term ran from 2006 to 2009.

The Times reported last month that another investment company had also bought shares in Ping An Insurance at an unusually low price on the same day in 2002 as Dinghe Venture Capital. That company, Tianjin Taihong, was later partly controlled by relatives of Prime Minister Wen Jiabao, then serving as vice premier with oversight of China’s financial institutions. In late 2007, the shares Taihong bought in Ping An were valued at $3.7 billion.

The investments by Dinghe and Taihong are significant in part because by late 2002, Beijing regulators had granted Ping An an unusual waiver to rules that would have forced the insurer to sell off some divisions. Throughout the late 1990s, the company was fighting rules that would have required a breakup, a move that Ping An executives worried could lead to bankruptcy.

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Well: Exercise and the Ever-Smarter Human Brain

Anyone whose resolve to exercise in 2013 is a bit shaky might want to consider an emerging scientific view of human evolution. It suggests that we are clever today in part because a million years ago, we could outrun and outwalk most other mammals over long distances. Our brains were shaped and sharpened by movement, the idea goes, and we continue to require regular physical activity in order for our brains to function optimally.

Phys Ed

Gretchen Reynolds on the science of fitness.

The role of physical endurance in shaping humankind has intrigued anthropologists and gripped the popular imagination for some time. In 2004, the evolutionary biologists Daniel E. Lieberman of Harvard and Dennis M. Bramble of the University of Utah published a seminal article in the journal Nature titled “Endurance Running and the Evolution of Homo,” in which they posited that our bipedal ancestors survived by becoming endurance athletes, able to bring down swifter prey through sheer doggedness, jogging and plodding along behind them until the animals dropped.

Endurance produced meals, which provided energy for mating, which meant that adept early joggers passed along their genes. In this way, natural selection drove early humans to become even more athletic, Dr. Lieberman and other scientists have written, their bodies developing longer legs, shorter toes, less hair and complicated inner-ear mechanisms to maintain balance and stability during upright ambulation. Movement shaped the human body.

But simultaneously, in a development that until recently many scientists viewed as unrelated, humans were becoming smarter. Their brains were increasing rapidly in size.

Today, humans have a brain that is about three times larger than would be expected, anthropologists say, given our species’ body size in comparison with that of other mammals.

To explain those outsized brains, evolutionary scientists have pointed to such occurrences as meat eating and, perhaps most determinatively, our early ancestors’ need for social interaction. Early humans had to plan and execute hunts as a group, which required complicated thinking patterns and, it’s been thought, rewarded the social and brainy with evolutionary success. According to that hypothesis, the evolution of the brain was driven by the need to think.

But now some scientists are suggesting that physical activity also played a critical role in making our brains larger.

To reach that conclusion, anthropologists began by looking at existing data about brain size and endurance capacity in a variety of mammals, including dogs, guinea pigs, foxes, mice, wolves, rats, civet cats, antelope, mongooses, goats, sheep and elands. They found a notable pattern. Species like dogs and rats that had a high innate endurance capacity, which presumably had evolved over millenniums, also had large brain volumes relative to their body size.

The researchers also looked at recent experiments in which mice and rats were systematically bred to be marathon runners. Lab animals that willingly put in the most miles on running wheels were interbred, resulting in the creation of a line of lab animals that excelled at running.

Interestingly, after multiple generations, these animals began to develop innately high levels of substances that promote tissue growth and health, including a protein called brain-derived neurotrophic factor, or BDNF. These substances are important for endurance performance. They also are known to drive brain growth.

What all of this means, says David A. Raichlen, an anthropologist at the University of Arizona and an author of a new article about the evolution of human brains appearing in the January issue of Proceedings of the Royal Society B, is that physical activity may have helped to make early humans smarter.

“We think that what happened” in our early hunter-gatherer ancestors, he says, is that the more athletic and active survived and, as with the lab mice, passed along physiological characteristics that improved their endurance, including elevated levels of BDNF. Eventually, these early athletes had enough BDNF coursing through their bodies that some could migrate from the muscles to the brain, where it nudged the growth of brain tissue.

Those particular early humans then applied their growing ability to think and reason toward better tracking prey, becoming the best-fed and most successful from an evolutionary standpoint. Being in motion made them smarter, and being smarter now allowed them to move more efficiently.

And out of all of this came, eventually, an ability to understand higher math and invent iPads. But that was some time later.

The broad point of this new notion is that if physical activity helped to mold the structure of our brains, then it most likely remains essential to brain health today, says John D. Polk, an associate professor of anthropology at the University of Illinois at Urbana-Champaign, and co-author, with Dr. Raichlen, of the new article.

And there is scientific support for that idea. Recent studies have shown, he says, that “regular exercise, even walking,” leads to more robust mental abilities, “beginning in childhood and continuing into old age.”

Of course, the hypothesis that jogging after prey helped to drive human brain evolution is just a hypothesis, Dr. Raichlen says, and almost unprovable.

But it is compelling, says Harvard’s Dr. Lieberman, who has worked with the authors of the new article. “I fundamentally agree that there is a deep evolutionary basis for the relationship between a healthy body and a healthy mind,” he says, a relationship that makes the term “jogging your memory” more literal than most of us might have expected and provides a powerful incentive to be active in 2013.

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This post has been revised to reflect the following correction:

Correction: December 31, 2012

An earlier version of this article misstated the name of a scientific journal. It is the Proceedings of the Royal Society B, not the Proceedings of the Royal Society Biology.

Read More..

Well: Exercise and the Ever-Smarter Human Brain

Anyone whose resolve to exercise in 2013 is a bit shaky might want to consider an emerging scientific view of human evolution. It suggests that we are clever today in part because a million years ago, we could outrun and outwalk most other mammals over long distances. Our brains were shaped and sharpened by movement, the idea goes, and we continue to require regular physical activity in order for our brains to function optimally.

Phys Ed

Gretchen Reynolds on the science of fitness.

The role of physical endurance in shaping humankind has intrigued anthropologists and gripped the popular imagination for some time. In 2004, the evolutionary biologists Daniel E. Lieberman of Harvard and Dennis M. Bramble of the University of Utah published a seminal article in the journal Nature titled “Endurance Running and the Evolution of Homo,” in which they posited that our bipedal ancestors survived by becoming endurance athletes, able to bring down swifter prey through sheer doggedness, jogging and plodding along behind them until the animals dropped.

Endurance produced meals, which provided energy for mating, which meant that adept early joggers passed along their genes. In this way, natural selection drove early humans to become even more athletic, Dr. Lieberman and other scientists have written, their bodies developing longer legs, shorter toes, less hair and complicated inner-ear mechanisms to maintain balance and stability during upright ambulation. Movement shaped the human body.

But simultaneously, in a development that until recently many scientists viewed as unrelated, humans were becoming smarter. Their brains were increasing rapidly in size.

Today, humans have a brain that is about three times larger than would be expected, anthropologists say, given our species’ body size in comparison with that of other mammals.

To explain those outsized brains, evolutionary scientists have pointed to such occurrences as meat eating and, perhaps most determinatively, our early ancestors’ need for social interaction. Early humans had to plan and execute hunts as a group, which required complicated thinking patterns and, it’s been thought, rewarded the social and brainy with evolutionary success. According to that hypothesis, the evolution of the brain was driven by the need to think.

But now some scientists are suggesting that physical activity also played a critical role in making our brains larger.

To reach that conclusion, anthropologists began by looking at existing data about brain size and endurance capacity in a variety of mammals, including dogs, guinea pigs, foxes, mice, wolves, rats, civet cats, antelope, mongooses, goats, sheep and elands. They found a notable pattern. Species like dogs and rats that had a high innate endurance capacity, which presumably had evolved over millenniums, also had large brain volumes relative to their body size.

The researchers also looked at recent experiments in which mice and rats were systematically bred to be marathon runners. Lab animals that willingly put in the most miles on running wheels were interbred, resulting in the creation of a line of lab animals that excelled at running.

Interestingly, after multiple generations, these animals began to develop innately high levels of substances that promote tissue growth and health, including a protein called brain-derived neurotrophic factor, or BDNF. These substances are important for endurance performance. They also are known to drive brain growth.

What all of this means, says David A. Raichlen, an anthropologist at the University of Arizona and an author of a new article about the evolution of human brains appearing in the January issue of Proceedings of the Royal Society B, is that physical activity may have helped to make early humans smarter.

“We think that what happened” in our early hunter-gatherer ancestors, he says, is that the more athletic and active survived and, as with the lab mice, passed along physiological characteristics that improved their endurance, including elevated levels of BDNF. Eventually, these early athletes had enough BDNF coursing through their bodies that some could migrate from the muscles to the brain, where it nudged the growth of brain tissue.

Those particular early humans then applied their growing ability to think and reason toward better tracking prey, becoming the best-fed and most successful from an evolutionary standpoint. Being in motion made them smarter, and being smarter now allowed them to move more efficiently.

And out of all of this came, eventually, an ability to understand higher math and invent iPads. But that was some time later.

The broad point of this new notion is that if physical activity helped to mold the structure of our brains, then it most likely remains essential to brain health today, says John D. Polk, an associate professor of anthropology at the University of Illinois at Urbana-Champaign, and co-author, with Dr. Raichlen, of the new article.

And there is scientific support for that idea. Recent studies have shown, he says, that “regular exercise, even walking,” leads to more robust mental abilities, “beginning in childhood and continuing into old age.”

Of course, the hypothesis that jogging after prey helped to drive human brain evolution is just a hypothesis, Dr. Raichlen says, and almost unprovable.

But it is compelling, says Harvard’s Dr. Lieberman, who has worked with the authors of the new article. “I fundamentally agree that there is a deep evolutionary basis for the relationship between a healthy body and a healthy mind,” he says, a relationship that makes the term “jogging your memory” more literal than most of us might have expected and provides a powerful incentive to be active in 2013.

---

This post has been revised to reflect the following correction:

Correction: December 31, 2012

An earlier version of this article misstated the name of a scientific journal. It is the Proceedings of the Royal Society B, not the Proceedings of the Royal Society Biology.

Read More..

India’s Aakash Venture Produces Optimism but Few Computers

Christinne Muschi for The New York Times

A prototype tablet is assembled at a DataWind site in Montreal. The company’s plan to invigorate India’s electronics manufacturing by producing low-cost tablets for students has gone awry.

NEW DELHI — The idea was, and still is, captivating: in 2011, the Indian government and two Indian-born tech entrepreneurs unveiled a $50 tablet computer, to be built in India with Google’s free Android software. The government would buy the computers by the millions and give them to its schoolchildren.

Enthusiasts saw the plan as a way to bring modern touch-screen computing to some of the world’s poorest people while seeding a technology manufacturing industry in India. Legions of customers placed advance orders for a commercial version of the tablet, thrilled at the prospect of owning tangible proof that India was a leader in “frugal innovation.”

Even the secretary general of the United Nations, Ban Ki-moon, lavished praise on the audacious project, called Aakash, the Hindi word for sky. “India is a superpower on the information superhighway,” Mr. Ban said at a ceremony in November at the United Nations headquarters in New York.

Stoking expectations was Suneet Singh Tuli, the charismatic C.E.O. of the small London-based company that won the bid. “I am creating a product at a lower price than anyone else in the world with the hope that it impacts people’s lives and I make money out of it,” he said in a recent interview.

But over the last few months, it has become increasingly evident that Mr. Tuli, 44, and his older brother, Raja Singh Tuli, 46, are unable to deliver on most of their ambitious promises.

The Tulis acknowledge that their company, DataWind, will not even come close to shipping the 100,000 tablets it has promised to India’s colleges and universities before its year-end deadline. Most of the 10,000 or so tablets delivered through early December were made in China, despite the company’s early pledge to manufacture in India. Financial statements filed with British regulators show that the company is deeply in the red.

And the project’s entire premise — that India can make a cheap tablet computer that will somehow make up for failures of the country’s crippled education system — is fundamentally flawed, according to some experts in education and manufacturing.

Leigh L. Linden, an assistant professor of economics and public affairs at the University of Texas at Austin who has studied the use of technology in schools in India and other developing countries, said that, at best, computers merely match the performance gains from far less costly projects that involve hiring additional teachers or teaching assistants. And in some cases, Professor Linden said, the introduction of computers can actually lower students’ test results.

“Based on the available research,” he said, “this would not be the most effective strategy for education in developing countries.”

The notion that India’s weak manufacturing sector can catch up to China in advanced computer hardware also strikes some experts as far-fetched. “China became the manufacturing center of the world, and India missed that boat,” said Surjit S. Bhalla, an economist and managing director of Oxus Investments.

So far, the Indian government is standing firmly behind the project.

“All pathbreaking ideas do look too ambitious when conceived,” the Ministry of Human Resource Development, which oversees the Aakash project, said in an e-mailed statement. Aakash is “an all-encompassing project,” not just the creation of a tablet computer, the ministry said. With it, the government plans to create “an entire manufacturing ecosystem” in India.

Interviews with DataWind executives, government officials, Chinese manufacturers, business partners and former and current employees paint a picture of a small family company that was overwhelmed by a complex project that even China’s cutthroat technology manufacturers would find challenging to execute at the price expected by the government.

Leading a tour last month of the company’s small touch-screen factory in downtown Montreal, Raja Tuli, DataWind’s co-chairman and chief technology officer, said he had initially opposed his brother’s desire to bid on the Aakash contract, and he expressed lingering regrets.

“We got stuck in it,” he said. “We’re doing our best.”

DataWind’s real goal, Mr. Tuli said, is to sell low-cost wireless Internet access for tablets in developing countries like India. He said DataWind’s proprietary data compression technology, which made its debut in Britain years ago with a device called the PocketSurfer, efficiently delivers Web pages over older, slower cellphone networks.

“Our biggest contribution is our software,” Mr. Tuli said. “The fact that we’re making the actual hardware is a sideline that we got into in the process. We never meant to do it, but here we are.”

For India’s government, the Aakash project was supposed to usher in a computer revolution.

Pamposh Raina reported from New Delhi and Amritsar, India, Ian Austen from Montreal and Heather Timmons from New Delhi. Mia Li contributed reporting from Beijing.

This article has been revised to reflect the following correction:

Correction: December 31, 2012

An earlier version of this article referred incorrectly on second reference to Ban Ki-moon, the United Nations secretary general. He is Mr. Ban, not Mr. Ki-moon.

Read More..

Japan’s New Premier Backs More Nuclear Plants

TOKYO — The newly elected prime minister of Japan, Shinzo Abe, said Sunday that he would seek to build nuclear reactors, reversing within a week in office a campaign pledge to move Japan away from nuclear power.

Pool photo by Itsuo Inouye

Prime Minister Shinzo Abe at the Fukushima Daiichi nuclear plant on Saturday. He said Sunday that he wanted more built.

The statement about the reactors came in Mr. Abe’s first televised interview since taking office. During his five days as prime minister, he had hinted that he would take a closer look at nuclear power.

“They will be completely different from those at the Fukushima Daiichi nuclear power plant,” he told the national television network TBS. Multiple meltdowns at the plant after an earthquake last year forced more than 100,000 people to flee their homes.

“With public understanding, we will be building anew,” Mr. Abe said.

He did not specify where or when. Building nuclear power plants would depart from the direction of the previous government of Yoshihiko Noda, who had pledged to phase out nuclear power by 2040.

It also appeared to go against a campaign platform adopted by Mr. Abe’s Liberal Democratic Party that aims “to establish an economy and society that does not need to rely on nuclear power.” The platform also said Japan would put the development of alternative energy sources, like solar and wind, ahead of nuclear power, and made no mention of new nuclear plants.

Though fervent antinuclear protests across the country have kept all but two of Japan’s 50 reactors off line, Mr. Abe is betting that Japan’s silent majority will condone a return to nuclear to help bolster the economy.

Mr. Abe’s pro-business Liberal Democrats won a landslide victory in parliamentary elections this month, campaigning on promises to take bolder measures to kick-start Japan’s moribund economy. The nation’s biggest business lobby, the Keidanren, has publicly urged the government to restart the nation’s reactors.

Signaling what could be rocky relations with Tokyo’s neighbors, Mr. Abe, who returned as a prime minister after a yearlong stint in 2006-7, also hinted that he may replace or void apologies from 1993 and 1995 for Japan’s having used women as sex slaves during World War II and for past colonial rule and aggression in Asia.

In a separate interview with The Sankei Shimbun, a national daily, he said his previous administration had found no evidence that the women who served as sex slaves to Japan’s wartime military had, in fact, been coerced. The Japanese government will seek to communicate that view, the newspaper quoted Mr. Abe as saying.

A perceived lack of remorse by Japan for its colonial and wartime history has been severely criticized, especially by South Korea and China, which bore the brunt of Japan’s colonial aggressions.

Japan is already embroiled in territorial spats with the two nations, heightening tensions over the past year.

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Elwood V. Jensen, Pioneer in Breast Cancer Treatment, Dies at 92

Tony Jones/Cincinnati Enquirer, via Associated Press

Elwood V. Jensen in 2004.

Elwood V. Jensen, a medical researcher whose studies of steroid hormones led to new treatments for breast cancer that have been credited with saving or extending hundreds of thousands of lives, died on Dec. 16 in Cincinnati. He was 92.

The cause was complications of pneumonia, his son, Thomas Jensen, said.

In 2004 Dr. Jensen received the Albert Lasker Basic Medical Research Award, one of the most respected science prizes in the world.

When Dr. Jensen started his research at the University of Chicago in the 1950s, steroid hormones, which alter the functioning of cells, were thought to interact with cells through a series of chemical reactions involving enzymes.

However, Dr. Jensen used radioactive tracers to show that steroid hormones actually affect cells by binding to a specific receptor protein inside them. He first focused on the steroid hormone estrogen.

By 1968, Dr. Jensen had developed a test for the presence of estrogen receptors in breast cancer cells. He later concluded that such receptors were present in about a third of those cells.

Breast cancers that are estrogen positive, meaning they have receptors for the hormone, can be treated with medications like Tamoxifen or with other methods of inhibiting estrogen in a patient’s system, like removal of the ovaries. Women with receptor-rich breast cancers often go into remission when estrogen is blocked or removed.

By the mid-1980s, a test developed by Dr. Jensen and a colleague at the University of Chicago, Dr. Geoffrey Greene, could be used to determine the extent of estrogen receptors in breast and other cancers. That test became a standard part of care for breast cancer patients.

Scientists like Dr. Pierre Chambon and Dr. Ronald M. Evans, who shared the 2004 Lasker prize with Dr. Jensen, went on to show that many types of receptors exist. The receptors are crucial components of the cell’s control system and transmit signals in an array of vital functions, from the development of organs in the womb to the control of fat cells and the regulation of cholesterol.

Dr. Jensen’s work also led to the development of drugs that can enhance or inhibit the effects of hormones. Such drugs are used to treat prostate and other cancers.

Elwood Vernon Jensen was born in Fargo, N.D., on Jan. 13, 1920, to Eli and Vera Morris Jensen. He majored in chemistry at what was then Wittenberg College in Springfield, Ohio, and had begun graduate training in organic chemistry at the University of Chicago when World War II began.

Dr. Jensen wanted to join the Army Air Forces, but his poor vision kept him from becoming a pilot. During the war he synthesized poison gases at the University of Chicago, exposure to which twice put him in the hospital. His work on toxic chemicals, he said, inspired him to pursue biology and medicine.

Dr. Jensen studied steroid hormone chemistry at the Swiss Federal Institute of Technology on a Guggenheim Fellowship after the war. While there, he climbed the Matterhorn, one of the highest peaks in the Alps, even though he had no mountaineering experience. He often equated his successful research to the novel approach taken by Edward Whymper, the first mountaineer to reach the Matterhorn’s summit. Mr. Whymper went against conventional wisdom and scaled the mountain’s Swiss face, after twice failing to reach the summit on the Italian side.

Dr. Jensen joined the University of Chicago as an assistant professor of surgery in 1947, working closely with the Nobel laureate Charles Huggins. He became an original member of the research team at the Ben May Laboratory for Cancer Research (now the Ben May Department for Cancer Research) in 1951, and became the director after Dr. Huggins stepped down.

He came to work at the University of Cincinnati in 2002, and continued to do research there until last year.

His first wife, the former Mary Collette, died in 1982. In addition to his son, Dr. Jensen is survived by his second wife, the former Hiltrud Herborg; a daughter, Karen C. Jensen; a sister, Margaret Brennan; two grandchildren; and three great-grandchildren.

Dr. Jensen’s wife was found to have breast cancer in 2005. She had the tumor removed, he said in an interview, but tested positive for the estrogen receptor and was successfully treated with a medication that prevents estrogen synthesis.

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Well: Exercise and the Ever-Smarter Human Brain

Anyone whose resolve to exercise in 2013 is a bit shaky might want to consider an emerging scientific view of human evolution. It suggests that we are clever today in part because a million years ago, we could outrun and outwalk most other mammals over long distances. Our brains were shaped and sharpened by movement, the idea goes, and we continue to require regular physical activity in order for our brains to function optimally.

Phys Ed

Gretchen Reynolds on the science of fitness.

The role of physical endurance in shaping humankind has intrigued anthropologists and gripped the popular imagination for some time. In 2004, the evolutionary biologists Daniel E. Lieberman of Harvard and Dennis M. Bramble of the University of Utah published a seminal article in the journal Nature titled “Endurance Running and the Evolution of Homo,” in which they posited that our bipedal ancestors survived by becoming endurance athletes, able to bring down swifter prey through sheer doggedness, jogging and plodding along behind them until the animals dropped.

Endurance produced meals, which provided energy for mating, which meant that adept early joggers passed along their genes. In this way, natural selection drove early humans to become even more athletic, Dr. Lieberman and other scientists have written, their bodies developing longer legs, shorter toes, less hair and complicated inner-ear mechanisms to maintain balance and stability during upright ambulation. Movement shaped the human body.

But simultaneously, in a development that until recently many scientists viewed as unrelated, humans were becoming smarter. Their brains were increasing rapidly in size.

Today, humans have a brain that is about three times larger than would be expected, anthropologists say, given our species’ body size in comparison with that of other mammals.

To explain those outsized brains, evolutionary scientists have pointed to such occurrences as meat eating and, perhaps most determinatively, our early ancestors’ need for social interaction. Early humans had to plan and execute hunts as a group, which required complicated thinking patterns and, it’s been thought, rewarded the social and brainy with evolutionary success. According to that hypothesis, the evolution of the brain was driven by the need to think.

But now some scientists are suggesting that physical activity also played a critical role in making our brains larger.

To reach that conclusion, anthropologists began by looking at existing data about brain size and endurance capacity in a variety of mammals, including dogs, guinea pigs, foxes, mice, wolves, rats, civet cats, antelope, mongooses, goats, sheep and elands. They found a notable pattern. Species like dogs and rats that had a high innate endurance capacity, which presumably had evolved over millenniums, also had large brain volumes relative to their body size.

The researchers also looked at recent experiments in which mice and rats were systematically bred to be marathon runners. Lab animals that willingly put in the most miles on running wheels were interbred, resulting in the creation of a line of lab animals that excelled at running.

Interestingly, after multiple generations, these animals began to develop innately high levels of substances that promote tissue growth and health, including a protein called brain-derived neurotrophic factor, or BDNF. These substances are important for endurance performance. They also are known to drive brain growth.

What all of this means, says David A. Raichlen, an anthropologist at the University of Arizona and an author of a new article about the evolution of human brains appearing in the January issue of Proceedings of the Royal Society Biology, is that physical activity may have helped to make early humans smarter.

“We think that what happened” in our early hunter-gatherer ancestors, he says, is that the more athletic and active survived and, as with the lab mice, passed along physiological characteristics that improved their endurance, including elevated levels of BDNF. Eventually, these early athletes had enough BDNF coursing through their bodies that some could migrate from the muscles to the brain, where it nudged the growth of brain tissue.

Those particular early humans then applied their growing ability to think and reason toward better tracking prey, becoming the best-fed and most successful from an evolutionary standpoint. Being in motion made them smarter, and being smarter now allowed them to move more efficiently.

And out of all of this came, eventually, an ability to understand higher math and invent iPads. But that was some time later.

The broad point of this new notion is that if physical activity helped to mold the structure of our brains, then it most likely remains essential to brain health today, says John D. Polk, an associate professor of anthropology at the University of Illinois at Urbana-Champaign, and co-author, with Dr. Raichlen, of the new article.

And there is scientific support for that idea. Recent studies have shown, he says, that “regular exercise, even walking,” leads to more robust mental abilities, “beginning in childhood and continuing into old age.”

Of course, the hypothesis that jogging after prey helped to drive human brain evolution is just a hypothesis, Dr. Raichlen says, and almost unprovable.

But it is compelling, says Harvard’s Dr. Lieberman, who has worked with the authors of the new article. “I fundamentally agree that there is a deep evolutionary basis for the relationship between a healthy body and a healthy mind,” he says, a relationship that makes the term “jogging your memory” more literal than most of us might have expected and provides a powerful incentive to be active in 2013.

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