Ben's News

Friday, February 17, 2006

Outsourcing Is Climbing Skills Ladder(NYTimes, 2/16/06)

February 16, 2006
Outsourcing Is Climbing Skills Ladder
By STEVE LOHR
The globalization of work tends to start from the bottom up. The first jobs to be moved abroad are typically simple assembly tasks, followed by manufacturing, and later, skilled work like computer programming. At the end of this progression is the work done by scientists and engineers in research and development laboratories.
A new study that will be presented today to the National Academies, the nation's leading advisory groups on science and technology, suggests that more and more research work at corporations will be sent to fast-growing economies with strong education systems, like China and India.
In a survey of more than 200 multinational corporations on their research center decisions, 38 percent said they planned to "change substantially" the worldwide distribution of their research and development work over the next three years — with the booming markets of China and India, and their world-class scientists, attracting the greatest increase in projects.
Whether placing research centers in their home countries or overseas, the study said, companies often use similar criteria. The quality of scientists and engineers and their proximity to research centers are crucial.
The study contended that lower labor costs in emerging markets are not the major reason for hiring researchers overseas, though they are a consideration. Tax incentives do not matter much, it said.
Instead, the report found that multinational corporations were global shoppers for talent. The companies want to nurture close links with leading universities in emerging markets to work with professors and to hire promising graduates.
"The story comes through loud and clear in the data," said Marie Thursby, an author of the study and a professor at Georgia Tech's college of management. "You have to have an environment that fosters the development of a high-quality work force and productive collaboration between corporations and universities if America wants to maintain a competitive advantage in research and development."
The multinationals, representing 15 industries, were from the United States and Western Europe. The authors said there was no statistically significant difference between the American and European companies.
Dow Chemical is one company that plans to invest heavily in new research and development centers in China and India. It is building a research center in Shanghai, which will employ 600 technical workers when it is completed next year. Dow is also finishing plans for a large installation in India, said William F. Banholzer, Dow's chief technology officer.
Today, the company employs 5,700 scientists worldwide, about 4,000 of them in the United States and Canada, and most of the rest in Europe. But the moves overseas will alter that. "There will be a major shift for us," Mr. Banholzer said.
The swift economic growth in China and India, he said, is part of the appeal because products and processes often have to be tailored for local conditions. The rising skill of the scientists abroad is another reason. "There are so many smart people over there," Mr. Banholzer said. "There is no monopoly on brains, and none on education either."
Such views were echoed by other senior technology executives, whose companies are increasing their research employment abroad. "We go with the flow, to find the best minds we can anywhere in the world," said Nicholas M. Donofrio, executive vice president for technology and innovation at I.B.M., which first set up research labs in India and China in the 1990's. The company is announcing today that it is opening a software and services lab in Bangalore, India.
At Hewlett-Packard, which opened an Indian lab in 2002 and is starting one in China, Richard H. Lampman, senior vice president for research, points to the spread of innovation around the world. "If your company is going to be a global leader, you have to understand what's going on in the rest of the world," he said.
The globalization of research investment, industry executives and academics argued, need not harm the United States. In research, as in economics, they said, growth abroad does not mean stagnation at home — and typically the benefits outweigh the costs.
Still, more companies in the survey said they planned to decrease research and development employment in the United States and Europe than planned to increase employment.
In numerical terms, scientists and engineers in research labs represent a relatively small part of the national work force. Like the debate about offshore outsourcing in general, the trend, which may point to a loss of competitiveness, is more significant than the quantity of jobs involved.
The American executives who are planning to send work abroad express concern about what they regard as an incipient erosion of scientific prowess in this country, pointing to the lagging math and science proficiency of American high school students and the reluctance of some college graduates to pursue careers in science and engineering.
"For a company, the reality is that we have a lot of options," Mr. Banholzer of Dow Chemical said. "But my personal worry is that an educated, innovative science and engineering work force is vital to the economy. If that slips, it is going to hurt the United States in the long run."
Some university administrators see the same trend. "This is part of an incredible tectonic shift that is occurring," said A. Richard Newton, dean of the college of engineering at the University of California, Berkeley, "and we've got to think about this more profoundly than we have in the past. Berkeley and other leading American universities, he said, are now competing in a global market for talent. His strategy is to become an aggressive acquirer. He is trying to get Tsinghua University in Beijing and some leading technical universities in India to set up satellite schools linked to Berkeley. The university has 90 acres in Richmond, Calif., that he thinks would be an ideal site.
"I want to get them here, make Berkeley the intellectual hub of the planet, and they won't leave," said Mr. Newton, who emigrated from Australia 25 years ago.
The corporate research survey was financed by the Ewing Marion Kauffman Foundation, which supports studies on innovation. It was designed and written by Ms. Thursby, who is also a research associate of the National Bureau of Economic Research, and her husband, Jerry Thursby, who is chairman of the economics department at Emory University in Atlanta.

Wednesday, February 08, 2006

Low-Fat Diet Does Not Cut Health Risks, Study Finds (NYTimes, 02/08/06)

February 8, 2006
Low-Fat Diet Does Not Cut Health Risks, Study Finds
By GINA KOLATA
The largest study ever to ask whether a low-fat diet reduces the risk of getting cancer or heart disease has found that the diet has no effect.
The $415 million federal study involved nearly 49,000 women ages 50 to 79 who were followed for eight years. In the end, those assigned to a low-fat diet had the same rates of breast cancer, colon cancer, heart attacks and strokes as those who ate whatever they pleased, researchers are reporting today.
"These studies are revolutionary," said Dr. Jules Hirsch, physician in chief emeritus at Rockefeller University in New York City, who has spent a lifetime studying the effects of diets on weight and health. "They should put a stop to this era of thinking that we have all the information we need to change the whole national diet and make everybody healthy."
The study, published in today's issue of The Journal of the American Medical Association, was not just an ordinary study, said Dr. Michael Thun, who directs epidemiological research for the American Cancer Society. It was so large and so expensive, Dr. Thun said, that it was "the Rolls-Royce of studies." As such, he added, it is likely to be the final word.
"We usually have only one shot at a very large-scale trial on a particular issue," he said.
The results, the study investigators agreed, do not justify recommending low-fat diets to the public to reduce their heart disease and cancer risk. Given the lack of benefit found in the study, many medical researchers said that the best dietary advice, for now, was to follow federal guidelines for healthy eating, with less saturated and trans fats, more grains, and more fruits and vegetables.
Not everyone was convinced. Some, like Dr. Dean Ornish, a longtime promoter of low-fat diets and president of the Preventive Medicine Research Institute in Sausalito, Calif., said that the women did not reduce their fat to low enough levels or eat enough fruits and vegetables, and that the study, even at eight years, did not give the diets enough time.
Others said that diet could still make a difference, at least with heart disease, if people were to eat the so-called Mediterranean diet, low in saturated fats like butter and high in oils like olive oil. The women in the study reduced all kinds of fat.
The diets studied "had an antique patina," said Dr. Peter Libby, a cardiologist and professor at Harvard Medical School. These days, Dr. Libby said, most people have moved on from the idea of controlling total fat to the idea that people should eat different kinds of fat.
But the Mediterranean diet has not been subjected to a study of this scope, researchers said.
And Barbara V. Howard, an epidemiologist at MedStar Research Institute, a nonprofit hospital group, and a principle investigator in the study, said people should realize that diet alone was not enough to stay healthy.
"We are not going to reverse any of the chronic diseases in this country by changing the composition of the diet," Dr. Howard said. "People are always thinking it's what they ate. They are not looking at how much they ate or that they smoke or that they are sedentary."
Except for not smoking, the advice for a healthy lifestyle is based largely on indirect evidence, Dr. Howard said, but most medical researchers agree that it makes sense to eat well, control weight and get regular exercise.
That is also what the cancer society recommends. Dr. Thun, who described the study's results as "completely null over the eight-year follow-up for both cancers and heart disease," said his group had no plans to suggest that low-fat diets were going to protect against cancer.
Others cautioned against being too certain that a particular diet would markedly improve health, and said that whether someone developed a chronic disease might not be entirely under their control — genetics also plays a role.
David A. Freedman, a statistician at the University of California, Berkeley, who is not connected with the study but has written books on the design and analysis of clinical trials, said the results should be taken seriously.
"The studies were well designed," Dr. Freedman said, "and the investigators tried to confirm popular hypotheses about the protective effect of diet against three major diseases in women."
"But," he added, "the diet studied here turned out not to be protective after all."
The study was part of the Women's Health Initiative of the National Institutes of Health, the same program that showed that hormone therapy after menopause might have more risks than benefits.
In this case, the study addressed a tricky problem. For decades, many scientists have said, and many members of the public have believed, that what people eat — the composition of the diet — determines how likely they are to get a chronic disease. But that has been hard to prove. Studies of dietary fiber and colon cancer failed to find that fiber was protective, and studies of vitamins thought to protect against cancer failed to show an effect.
Many cancer researchers have questioned large parts of the diet-cancer hypothesis, but it has kept a hold on the public imagination. "Nothing fascinates the American public so much as the notion that what you eat rather than how much you eat affects your health," said Dr. Libby, the Harvard professor.
The study found that women who were randomly assigned to follow a low-fat diet ate significantly less fat over the next eight years. But they had just as much breast and colon cancer and just as much heart disease. The women were not trying to lose weight, and their weights remained fairly steady. But their experiences with the diets allowed researchers to question some popular notions about diet and obesity.
There is a common belief that Americans get fat because they eat too many carbohydrates. The idea is that a high-carbohydrate, low-fat diet leads to weight gain, higher insulin and blood glucose levels, and more diabetes, even if the calories are the same as in a higher-fat diet. That did not happen here.
Others have said the opposite: that low-fat diets enable people to lose weight naturally. But that belief was not supported by this study.
As for heart disease risk factors, the only one affected was LDL cholesterol, which increases heart disease risk. The levels were slightly higher in women eating the higher-fat diet, but not high enough to make a noticeable difference in their risk of heart disease.
Although all the study participants were women, the colon cancer and heart disease results should also apply to men, said Dr. Jacques Rossouw, the project officer for the Women's Health Initiative.
Dr. Rossouw said the observational studies that led to the hypothesis about colon cancer and dietary fat included men and women. With heart disease, he said, researchers have found that women and men respond in the same way to dietary fat.
The most recent study follows a smaller one, reported last year, on low-fat diets for women who had breast cancer. That study hinted that eating less fat might help prevent a recurrence. But the current study, asking if a low-fat diet could protect women from breast cancer in the first place, had findings that fell short of statistical significance, meaning they could have occurred by chance.
Dr. Rossouw said he was still intrigued by the breast cancer data, even though it was not statistically significant. The women on low-fat diets had a 9 percent lower rate of breast cancer; the incidence was 42 per thousand per year in women in the low-fat diet group, compared with 45 per thousand per year in women consuming their regular diet.
That could mean that fat in the diet may have a small effect, Dr. Rossouw said, perhaps in some subgroups of women or over a longer period of time. He added that the study investigators would continue to follow the women to see if the effect became more pronounced.
While cancer researchers said they were disappointed by the results, heart disease researchers said they were not surprised that simply reducing total fat had no effect, because they had moved on from that hypothesis.
Of course, Dr. Libby acknowledged, the latest advice, to follow a Mediterranean diet and get regular exercise, has never been tested in a large randomized clinical trial. "If they did a study like that and it was negative," he said, "then I'd have to give up my cherished hypotheses for data."
The low-fat diet was not easy to follow, said Dr. Rowan T. Chlebowski, a medical oncologist at Harbor-U.C.L.A. Medical Center and one of the study's principal investigators. Women were told to aim for a diet that had just 20 percent of its calories as fat, and most fell short.
The diet they were told to follow "is different than the way most people eat," Dr. Chlebowski said. It meant, for example, no butter on bread, no cream cheese on bagels, no oil in salad dressings.
"If a physician told a patient to eat less fat, that will do nothing," he said. "If you send someone to a dietitian one time, that will do next to nothing." The women in the study had 18 sessions in small groups with a trained nutritionist in the first year and four sessions a year after that.
In the first year, the women on the low-fat diets reduced the percentage of fat in their diet to 24 percent of daily calories, and by the end of the study their diets had 29 percent of their calories as fat. In the first year, the women in the control group were eating 35 percent of their calories as fat, and by the end of the study their dietary fat content was 37 percent. The two groups consumed about the same number of calories.
Some medical specialists emphasized that the study did not mean people should abandon low-fat diets.
"What we are saying is that a modest reduction of fat and a substitution with fruits and vegetables did not do anything for heart disease and stroke or breast cancer or colorectal cancer," said Dr. Nanette K. Wenger, a cardiologist and professor of medicine at Emory University School of Medicine in Atlanta. "It doesn't say that this diet is not beneficial."
But Dr. Freedman, the Berkeley statistician, said the overall lesson was clear.
"We, in the scientific community, often give strong advice based on flimsy evidence," he said. "That's why we have to do experiments."