Wednesday, September 11, 2013

0912-Samsung’s ‘smart watch’ gets mixed response


After months of anticipation, snowballing speculation and countless leaked photos online, Samsung Electronics Co. on Wednesday introduced the Galaxy Gear, a wrist-worn device that allows users to check messages and make phone calls without whipping out their smartphones.

The new “smart watch,” in spite its futuristic appeal, brought mixed responses, with many not wholeheartedly impressed with the latest device from the South Korean tech giant.

Among the biggest issue was that it had no phone functions of its own, nor the flexible display that designers’ photos leaked earlier in the year had suggested. While it can receive or send calls, it has to be wirelessly linked to a smartphone to do so, along with other functions.

Some users also took issue with the Gear’s 315mAh battery, which Samsung said would last a day upon charging. Given that the device is basically a watch, battery life was just not enough, they said.

Its limited compatibility also appears to be a stumbling block in its success. As of now, the Gear can only be linked to Galaxy Note 3 and Galaxy Tab 10.1, a large-screen smartphone and a tablet computer both released with the smart watch on Wednesday. Samsung has vowed to update other products of the Galaxy series to work with Galaxy Gear in the future.

The Gear has impressed most with its hardware, which has always been Samsung’s strength. Armed with 1.63-inch Super AMOLED display with 320x320 resolution, a single-core 800MHz Exynos processor and a built-in 1.9-megapixel camera, the watch offers an array of functions to entertain users.

U.S. tech media the Verge said users will be able to enjoy it “if you think of it as a toy and a fun accessory,” but that the problem was in its $299 price tag, which appeared a bit steep for a device that can only work as an accessory to another smart gadget.

With noticeable highs and lows, it remains to be seen whether the Gear will be a game changer in the emerging market of wearable high-tech devices, which research firm Gartner predicted will be a $10 billion industry by 2016.

Samsung’s archi-rival Apple Inc. is also planning to release its smart watch, and Sony and Qualcomm introduced their own watches Wednesday as well.

Samsung Galaxy Gear and Galaxy Note 3 will be released in more than 140 countries in the world on Sept. 25, Samsung said.
By Yoon Min-sik

Tuesday, September 10, 2013

0911-New Radiation Hotspots Found at Fukushima Daiichi

TOKYO—The operator of the troubled Fukushima Daiichi nuclear complex said over the weekend that its struggles to control highly radioactive water had suffered new setbacks.
The company announced the discovery of contaminated spots in new parts of the compound where the water is stored, while radiation levels jumped to highly dangerous levels in another part of that area where readings were previously lower.
The leakage water from the Fukushima Daiichi Nuclear Power Plant has been declared a level 3 "serious incident" by regulators. The WSJ's Deborah Kan speaks with Kathryn Higley, Head of Nuclear Engineering at Oregon State University.
Tokyo Electric Power Co. said it found on Saturday and Sunday high radiation levels in five locations near storage tanks installed to collect the 400 tons of contaminated water pumped out daily from the radioactive reactor buildings, indicating the possibility of new leaks from the tanks, or some other unexplained difficulties in containing the water.
Three of the measurements came in spots where contamination hadn't previously been detected. The other two hot spots registered sharp increases from previous measurements.
Two of the readings showed extremely high levels of radiation, one as high as 1,800 millisieverts per hour, another nearby at 1,700. Those are among the highest levels reported at the plant since the early days after a tsunami knocked out power on March 11, 2011, triggering one of the world's worst nuclear disasters. Exposure to such a level of radiation would kill a person within four hours, Tepco said.

Fukushima Daiichi: The Battle for Containment

More than two years after suffering one of the world's worst nuclear accidents, the compound remains a challenge for the operator and regulators.
Tepco has increased patrols and radiation readings after finding last month that 300 metric tons, or 79,000 gallons, of highly radioactive water had leaked from a hastily built storage tank. The Japanese government recently stepped in to take a more direct role in stemming the crisis at Fukushima Daiichi, which suffered triple meltdowns after the 2011 earthquake and tsunami knocked out backup power at the site.
The continuing reports of new radiation readings at Fukushima Daiichi underscore the difficulties Tepco and the government have in bringing the stricken compound under control.
For nearly two years, they say they have minimized the biggest danger of the crippled complex, the possibility of a new meltdown. But they have fallen behind on dealing with the hundreds of tons of groundwater coming into contact daily with the radioactive reactor buildings, sticking the bulk of it in storage tanks on the compound. Storage tanks hastily set up during plant emergencies have started springing leaks, and Tepco can't replace them with sturdier ones fast enough.
While disclosing the new findings over the weekend, Tepco officials played down the significance of any new risks.
"We're not taking the latest findings lightly and we understand that it's a critical challenge," Tepco spokesman Yoshikazu Nagai said Sunday. "But we're not in a situation where the 300 tons of leaked water [detected so far from the storage tanks] will increase to 600 or 900 tons."

At Fukushima, the Battle Continues

Reuters
Workers move radiation-contaminated waste at a storage site in Naraha town, which is inside the former no-go zone within a 20-kilometer (12-mile) radius of the crippled nuclear-power plant. Currently, it is a designated evacuation zone.
Tepco said water levels of tanks nearby the five contaminated spots haven't fallen, suggesting the water hasn't leaked. Mr. Nagai said drain valves connected to the storage tanks are closed and that the tanks are built atop a concrete foundation, which the company says is waterproof, suggesting not much water has leaked outside the complex and into the ocean nearby. In the case of the 79,000-gallon leak, Tepco suspects the water leaked from a tank's drain valve that was open.
Regarding one of the new hot spots reported Saturday, Tepco said Sunday that it appeared to be caused by the fact that one drop of contaminated water is leaking every 90 seconds from a pipe linking two storage tanks. Late Sunday, Tepco said it appeared that the leak had stopped after it tightened bolts.
Reuters
An aerial view of Tokyo Electric Power Co.'s Fukushima Daiichi nuclear power plant.
As for the sharp rise in the radioactivity at one of the hot spots, Tepco said that while workers measured 1,800 mSv/h at a spot that was around five centimeters from the tank's base, the reading dropped sharply to 15 mSv/h when moving 50 centimeters away from the base, a level considered much less dangerous.
By wearing special gloves or using aluminum sheets, the radiation can be blocked, according to the operator. Still, the level is incredibly high since 100 mSv is the level at which cancer risks are seen as rising and equivalent to double the maximum dosage that workers at the plant are allowed in an entire year.
The continuous water problems have prompted Tepco and the government to continue seeking new solutions. The Japanese government is now studying an expensive, untested proposal to install a subterranean ring of ice to stem the spread of radioactive water. Prime Minister Shinzo Abe has said the government would now take the lead from Tepco after Japan's nuclear watchdog recently assessed the leak to be a "serious incident" or level 3 on an international nuclear accident scale of zero to seven.

Monday, September 9, 2013

0910-Choking on Pollution, Beijing Eyes Car Congestion Fee

Agence France-Presse/Getty Images
Cars on an eight-lane expressway on a polluted day in Beijing.
Faced with often catastrophic air pollution, Beijing is considering taking a page out of London’s playbook: a congestion fee for car owners.
A notice published on the Beijing government website (in Chinese) late Monday said the city is mulling a policy to impose a congestion fee for cars as it aims to keep less than 6 million vehicles licensed by the end of 2017, from about 5.35 million now.
“Whoever pollutes the air is responsible to clean it up,” the state-run China Daily on Tuesday quoted Fang Li, spokesman for the Beijing Environmental Protection Bureau, as saying. The notice didn’t specify how the fees would be imposed or paid.
Auto emissions account for one-third of PM2.5—particulate matter measuring less than 2.5 micrometers in diameter—in most congested areas in Beijing.
According to the notice, the congestion fee is part of the city’s broader five-year plan to clean up its heavily polluted air and which also targets power plants, oil refiners, cement makers and restaurants. The municipal government of Beijing pledges to reduce the density of PM2.5 by at least 25% by 2017.
Beijing has already distributed license plates through lotteries to curb car sales. It has also restricted the use of motor vehicles by banning private cars one workday a week based on the last digit of the license plate.
Calls for the government to improve air quality surged this past winter, when swaths of the country were blanketed by rarely seen air-pollution levels. In the capital city, residents stocked up on face masks and air purifiers.
But finding a solution to the city’s serious pollution problems won’t be easy.
“Road pricing is controversial. Getting political consensus for that is harder than implementing ownership controls,” Binyam Reja, the World Bank’s transport sector coordinator for China, said in a recent interview. Nonetheless, London and Singapore have successfully introduced such programs, he said.
An official from the environmental ministry was quoted last month by the state-run Xinhua news agency as saying the central government would invest 1.7 trillion yuan ($280 billion) in the coming years in efforts to control air pollution.
In addition to worsening air pollution, Beijing is also combating heavy traffic. The average speed of car traffic in the city is short of 15 kilometers, or 9.3 miles, per hour, about the speed of easy bicycling, data from UBS Securities show.
The notice said Beijing will ban vehicles of outside the city from entering the Sixth Ring Road unless they get permission from the city government. The restriction will take effect in 2014. Currently, cars from other provinces are prohibited from entering the Fifth Ring Road during rush hours.
–Rose Yu

Friday, September 6, 2013

0909-Mathematicians must be storytellers



Scholar stresses need to make subject fun, improve research qualitatively



Hwang Jun-muk is not your typical mathematician. He reasons the most abstract complexities but tries his best to communicate them in fun and exciting ways.

The ability to tell stories is needed among mathematicians in Korea where the subject is still deemed boring and learned by rote, said the nation’s top academic in the field.

Korean students are among the top performers in international mathematics contests, but they lag far behind in terms of interest and passion, which may account for the relatively modest performances by professional Korean researchers in the world.

The trend bodes ill for the nation’s future as mathematics is key to creative thinking and increasingly important as the fundamental base for diverse disciplines including science, engineering, finance, design and even philosophy.

Hwang Jun-muk, professor of mathematics at Korea Institute for Advanced Study (Park Hae-mook/The Korea Herald)

Hwang, 50, calls for a drastic change in the way mathematics is presented to the general public, taught in school and researched in academia.

“When I prepare for a presentation, I think hard to put my ideas into a good, interesting story. If you put all mathematical proofs just in order and present it to your audience, it will be extremely boring,” he said in an interview with The Korea Herald.

“Korean mathematicians have good techniques and knowledge and made progress in research, but they are still not good at making a story (in comparison to Western powerhouses for advanced mathematics).”

Hwang began his career at the University of Notre Dame in U.S., and taught at Seoul National University before coming to the Korea Institute for Advanced Study.

In 2006, Hwang became the first Korean invited to speak at the prestigious International Congress of Mathematicians, the world’s biggest gathering of mathematicians.

Seoul will hold the event dubbed the Olympic Games of mathematics in August 2014 as the fourth Asian host after Japan, China and India.

Hwang said it attests to Korea’s progress in the field despite its short history in modern academic research.

Korea was ranked 11th in the world in terms of SCIE publications in mathematics in 2008, more than doubling its publications in less than 10 years.

Hwang pins high hopes on the event for developing mathematics and making it engaging and popular in the country.

“Next year, we’ll have six Korean invited speakers at the congress. It’s already something. And I believe this event will be a stepping stone to move on to the world’s top level,” he said.

But the nation still has a long way to go to join the world’s top countries in the discipline.

“In order to make to the top level, the country needs to develop not only quantitatively, but qualitatively as well,” he said.

A key stumbling block is the current educational curriculum, which has traditionally emphasized only problem-solving techniques. Also, many Korean mathematicians do not learn how to present their ideas.

Universities’ assessment of professors and researchers also needs changing.

“Most colleges and universities here only see how many papers professors have published in journals, not the quality of his or her research.”

He pointed out that the evaluation system based on quantity rather than quality has adverse effects on Korean academia.

“Researchers write papers not because they have found something to write, but because they have to write something to keep their positions. And doctorate students tend to choose a relatively easy subject in order to obtain a doctorate by publishing a paper in a journal,” he said.

In 2006, Hwang received the Korean Award for Supreme Scientist by solving complex rigidity problems in complex geometry.

To speak simply, it is for finding proofs of nonexistence, he said. “You can say my research is useless, because I prove something that is not real. But by proving such nonexistence, it can help reduce risks of others going the wrong way,” he explained.

A good mathematician requires not only techniques but also creativity.

He perhaps inherited his creative side from his parents. His father is traditional Korean music composer and “gayageum” master Hwang Byung-ki and his mother is one of the country’s leading authors, Han Mal-sook.

“Thanks to my parents, I read a lot of books at home in my childhood. That may help me now when I present my ideas to others.”

“I had a chance to talk to high school students, and I told them read novels as well as watch movies a lot to practice and improve their skills to present their ideas well in a simple and interesting way. It’s important to be a good mathematician,” he added.

The most difficult thing about a mathematician, he said, is that it can be months or years before one finds an idea to solve questions.

Good ideas usually come up while strolling or taking a trip and he tries to meet as many people as possible to hear their ideas.

“I always think not one, but many questions and think several things at the same time. It helps me keep working.”

Profile

Hwang Jun-muk

Hwang is professor of that school of mathematics at the Korea Institute for Advanced Study in Seoul. He previously served as assistant professor at Seoul National University from 1996-1999.

Hwang works on algebraic geometry and complex geometry. He received a Korean award for supreme scientist in 2006.

He graduated from Seoul National University with a bachelor’s degree in physics, and earned his doctorate degree in mathematics at Harvard University.

By Oh Kyu-wook (596story@heraldcorp.com)

Wednesday, September 4, 2013

0906-[Editorial] Low-priced electricity

Officials of Korea Electric Power Corp. monitoring the daily peak-time power usage should be breathing a sigh of relief as the heat wave begins to recede. Yet, they cannot afford to lower their guard, because the possibility of rolling blackouts cannot be ruled out during the next several weeks.

On the contrary, blackouts can strike the nation during off-season maintenance, as they did in September 2011. An unseasonable heat wave, when put together with a breakdown at one or two power plants, is a good recipe for a blackout.

Moreover, a shortage in power supply is not a passing problem but a chronic one. Given that power plants cannot be built in a short period of time, the nation will have to brace itself for blackouts next summer. Then, energy conservation will be stressed again.

But an appeal to the public for conservation alone cannot be a solution to the chronic power shortage. Instead, the nation will have to deal with the root cause of the problem ― the provision of electricity at an unreasonably low cost.

The ratio of electricity rates to production costs rose from 87 percent to 90.9 percent when KEPCO raised the rates 4.5 percent on average last December. In other words, KEPCO was still providing electricity well below cost despite the rate increase.

It raised the rates another 4.9 percent on Aug. 6. This time, the power company did not disclose the post-increase ratio of electricity rates to production cost. No matter where the ratio stood, the provision of electricity at unjustifiably low prices was undeniable. Held accountable were previous administrations, which pushed down electricity rates to curry favor with consumers on one hand and help boost exports on the other. 

More often than not, the previous administrations, concerned about consumer inflation, had refused KEPCO’s requests to raise electricity rates for individual homes. Rate increases, when permitted, had been kept to the minimum.

Rates for companies had been pushed down for a different reason ― to help them maintain a competitive edge against their foreign rivals. According to a recent news report, the cost of electricity for industrial use in Korea was 37 percent of that in Japan and 41 percent of that in Germany.

This industrial policy has backfired, given that the industrial use of electricity in the nation shot up 35 percent from 2002 to 2009, compared with a mere 4 percent increase on average among OECD members.

Against this backdrop, the incumbent administration has recently agreed with the ruling Saenuri Party to raise rates both for homes and companies. But corporations are misguidedly putting up organized opposition to the proposed rate increases. They should be thankful for the favors they have received, instead of grumbling about the move to raise rates in October.

Tuesday, September 3, 2013

0904-More Young Adults Live With Parents

The share of young adults living with their parents edged up last year despite improvements in the economy—a sign that the effects of the recession are lingering.
In a report on the status of families, the Census Bureau on Tuesday said 13.6% of Americans ages 25 to 34 were living with their parents in 2012, up slightly from 13.4% in 2011. Though the trend began before the recession, it accelerated sharply during the downturn. In the early 2000s, about 10% of people in this age group lived at home.
The figures are the latest evidence of the recession's continuing impact on young Americans, who are finding it harder to land jobs and take on the costs of setting up their own homes.
Vivien Tsuong, 28, has a job as a marketing specialist, but is living at home in San Gabriel, Calif., to save money. In 2010, after returning from Japan, where she taught English for two years, Ms. Tsuong struggled for a year to find work. After landing a position in 2012, she moved into her current job at a company that sells computer and Internet products this spring. Now that she is stable professionally, she wants to build savings, just in case she encounters more job turbulence, she said.
Ms. Tsuong said many of her friends are spending $700 or $800 a month on rent. "I can move out if I really wanted to, but given the situation with rent and gas, I feel like I can save more living at home," she said. "If you can save now, you're sort of investing in your future."
Demographers say joblessness during the recession and in its aftermath has fueled the trend of young adults living at home. The percentage of 25-to-34-year-olds living with parents climbed from 10.6% early in the 2000s to 11.8% in 2007, when the recession officially began. But after that the figure jumped sharply.
Richard Fry, an economist at Pew Research Center, said the rising share of young adults at home reflects changing attitudes about the phenomenon as well as economic pressures.
Recent surveys by Pew found over 60% of people ages 18 to 34 knew someone who had moved back in with their parents because of the economy, he said, and that four of five people ages 25 to 34 who were living with their parents were satisfied with the arrangement.
That may suggest there is less stigma attached to living at home, said Mr. Fry. "Living with your parents may not be what it once was," he said.
Other trends also are playing a role: Young adults are marrying later, putting off having children and finding it harder to establish stable careers.
The latest findings have important implications for the nation's housing market and broader recovery, since they suggest fewer young Americans are buying houses, furniture and appliances—purchases that fuel much of the country's economic growth.
While Americans are spending much more than they did during the throes of the recession, overall consumption growth has remained much weaker than in past recoveries.

Monday, September 2, 2013

0903-A Different Therapy to Find Greater Happiness

Say the words "therapy session" and many people will picture an hour spent on a couch dredging up unhappy childhood memories. A different approach suggests that redirecting the focus onto the present and future can make people happier, healthier and lead to better relationships.
Robert Neubecker
The method, called Time Perspective Therapy, involves figuring out which of six different outlooks a person has: past-positive (you love the past); past-negative (you have regrets and bad things happened in your past—or things that you now exaggerate as bad); present hedonism (you enjoy the present and like to reward yourself); present fatalism (you feel that events are beyond your control, so why bother?); goal-oriented future (you plan ahead and weigh the costs and benefits of any decision); transcendental future (you live a good life because you believe the reward is a heaven after death).
The best profile to have, says Philip Zimbardo, psychologist and professor emeritus at Stanford University, is a blend of a high level of past-positive, a moderately high level of future orientation and a moderate level of selected present hedonism. In other words, you like your past, work for the future—but not so hard that you become a workaholic—and choose when to seek pleasure in the present. Dr. Zimbardo, an influential thinker in this field who lectures widely, administers a 56-item questionnaire to determine a patient's profile.
The worst time-perspective profile to have is a high level of past-negative coupled with a high level of present fatalism. "These people are living in a negative past and think nothing they do can change it," says Dr. Zimbardo, co-author of the book "The Time Cure." They also score low on present hedonism and have a low future orientation. People who are clinically depressed or have Post-Traumatic Stress Disorder typically have this profile.
Our individual time perspective is influenced by many things, including family and friends, culture, religion, education and life events. As very young children, we were all pretty much purely hedonistic—focused on getting what we wanted when we wanted it. Some, but not all, of us become more future-oriented as we get older.
In a famous study in the 1960s, psychologist Walter Mischel, now a professor at Columbia University, tested the ability of young children to resist temptation for a future goal. He placed one marshmallow in front of each child and explained that they could eat it right away if they wanted, but if they waited about 10 to 15 minutes, they could have a second one to eat. About half the children gobbled up the treat right away; the other half managed to hold out for a second marshmallow.
The time perspective that the children had when they were young had a large impact on the way they behaved later in life. Dr. Mischel followed up with the children when they were teens, and then in middle age. The individuals who resisted the marshmallow at roughly ages 4 and 5 performed better in school, scored an average of about 250 points higher on their SATs and had happier family lives. Those who ate the marshmallow immediately had more emotional problems throughout their lives.
The good news, says Dr. Zimbardo: People can change their time perspective. Between 2004 and 2012, Time Perspective Therapy was administered by Dr. Zimbardo's co-authors Rick and Rosemary Sword, therapists in Maui, to 32 veterans with Post-Traumatic Stress Disorder, all of whom had been through other therapies without positive results. All 32 saw a significant decrease in anxiety, depression and PTSD symptoms.
A person can raise a past-positive score, Dr. Zimbardo says, by focusing on the good in your past: create photo albums, write letters of gratitude to people who inspired you, start an oral history of your family.
Your future orientation can get a boost by organizing your calendar or planning a family vacation, actions that get you to envision and plan for a positive future. And volunteering or becoming a mentor can help you see that your actions can have a positive impact.
And you can increase your present hedonism—selectively!—by doing something to balance your mood, such as exercise or a nature walk. Also, reward your hard work with an activity you enjoy: dinner with a friend, a massage, an afternoon playing your favorite sport.
To lower your past-negative scores you can work to silence your pessimistic inner critic by meditating or keeping an ongoing list of all the good things in your life right now. "It's thinking about what's good in your life now, rather than what was bad in your life then," says Dr. Zimbardo.
And you can reduce your future fatalistic perspective by learning a new skill or hobby that allows you to see your change, and doing it with a partner—it's less isolating and the other person can give you positive feedback.
Dominic Monahan not surprisingly had a negative perspective after he was laid off from his job as a project manager at a printing press manufacturer in 2009, and moved into his mother's suburban Chicago basement. He sent out hundreds of resumes—and landed no interviews. "I had no hope and was living in the past," says the 42-year-old. "I was ready to give up."
Mr. Monahan admits he was always pretty focused on present gratification. He preferred to ride his mountain bike, run, hunt, "or do anything" instead of studying. He dropped out of college, joined the Navy and held a series of technician jobs after he got out. He says he tried college several more times without graduating.
He tried psychotherapy after he lost his job, but quit because he felt it was just paying someone to listen to him complain. While he didn't try Time Perspective Therapy specifically, his experience shows how the method can help a person recover from a downward spiral.
He eventually gained 60 pounds (eating peanut butter by the spoonful) and began sleeping 18 hours a day. When he outgrew his sweatpants, he says, he decided to turn his life around. He signed up for an online finance degree, and the condensed classes helped him to feel he was making progress. He recently graduated. He also got a temporary consulting job at a company that uses new technology to purify wastewater.
He started to exercise and took up the martial art Tae Kwan Do. His instructor, who is also a psychologist, taught him to talk back to his negative inner voice. Now, when he starts ruminating on mistakes he's made in the past, or tells himself there is no hope, he says out loud: "Stop…This behavior is not going to move us in a positive direction or make us happy."
Mr. Monahan still lives with his mom. He has lost 35 pounds and says his hunt for a financial analyst position and his goal of achieving more Tae Kwan Do belts keep him focused on the future.
The small steps he took all added up and "helped me get out of the negative past, be in the present and plan for the future," he says. "Over time they started to change my subconscious into believing there is hope."
A Path to Happiness
To determine what steps people should take to boost their happiness, the Zimbardo Time Perspective Inventory questionnaire asks people to rate 56 statements, including the seven below, as very true, true, neutral, false or very false. For the full quiz, visit www.thetimeparadox.com
I believe that a person's day should be planned ahead each morning
It gives me pleasure to think about my past
When listening to my favorite music, I often lose all track of time.
It upsets me to be late for appointments.
I've taken my share of abuse and rejection in the past.
It is important to put excitement in my life
Taking risks keeps my life from becoming boring
Source: Philip Zimbardo, Stanford University