Five major psychiatric disorders linked in new study

(CBS News) An international group of scientists have identified genetic links between five major psychiatric disorders, including autism, ADHD, bipolar disorder, depression and schizophrenia.

Their study, published in the medical journal Lancet, could change how we understand and treat the illnesses.

For the first time, researchers were able to see if there are any genetic variants that are linked to not just one of those disorders, but to all five. "And there were," Dr. Jordan Smoller, one of the lead researchers in the study, said on "CBS This Morning."

Smoller, a psychiatry professor at Massachusetts General Hospital, explained, "There were several regions of the genome, several variations that seemed to increase the risk for all five. It's important to realize, of course, that this is a small part of the genetic component of these disorders, but it points to a shared biology."

The researchers took this approach because disorders often cluster in families. Smoller added, "It's not only that, we sometimes see the same family being affected with multiple kinds of disorders, so there was some evidence that there would be shared links, but this is the first time we've been able to see specific DNA variations."

Will the study affect how we treat these disorders?

"Well, not immediately," Smoller said. "But one of the interesting findings from the study was that genes involved in how calcium channels operate in the brain. These are important for how brain cells communicate. It seemed to be associated with all of these disorders, so it raises the possibility that treatments that target those channels might have broad effects."

But just because you have family members that have one of these disorders doesn't mean you will develop a disorder, Smoller explained. "We do know that all psychiatric disorders do seem to run in families to a degree," he said. "We also know that genes are not destiny. It is not the entire picture. But the hope is that we're going learn something fundamental about how these disorders occur."

Asked if eventually predicting these disorders is possible, Smoller said, "We're not there yet, but the more we learn about the genetic and non-genetic causes of these disorders, the better position we're going to be to know who might be at risk and what we might be able to do."

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Benedict Pledges 'Obedience' to New Pope

In his farewell remarks to colleagues in the Roman Catholic Church, Pope Benedict XVI, the first pontiff to resign in nearly 600 years, promised "unconditional reverence and obedience" to his eventual successor.

Benedict, in a morning meeting at the Vatican, urged the cardinals to act "like an orchestra" to find "harmony" moving forward.

Benedict, 85, is spending a quiet final day as pope, bidding farewell to his colleagues and moving on to a secluded life of prayer, far from the grueling demands of the papacy and the scandals that have recently plagued the church.

His first order of business was a morning meeting with the cardinals in the Clementine Hall, a room in the Apostolic Palace. Despite the historical nature of Benedict's resignation, not all cardinals attended the event.

With their first working meeting not until Monday, only around 100 cardinals were set to attend, the Vatican press office said Wednesday. Those who are there for Benedict's departure will be greeted by seniority.

Angelo Sodano, the dean of the College of Cardinals, thanked Benedict for his service to the church during the eight years he has spent as pontiff.

Pope Benedict XVI Delivers Farewell Address

In the evening, at 5:00 p.m. local time, Benedict will leave the Vatican palace for the last time to head to Castel Gandolfo, the papal summer residence outside Rome. Before his departure, the German-born theologian will say some goodbyes in the Courtyard of San Damaso, inside the Vatican, first to his Secretary of State Cardinal Tarcisio Bertone and then to the Swiss Guards who have protected him as pontiff.

9 Men Who Could Replace Pope Benedict XVI

From there it is a short drive to a heliport for the 15-minute flight via helicopter to Castel Gandolfo, just south of the city. Benedict will not be alone on his journey, accompanied by members of the Pontifical Household such as two private secretaries, the head of protocol, his personal physician and his butler.

Once Benedict lands in the gardens at Castel Gandolfo, he will be greeted a group of dignitaries, such as the governor of the Vatican City state Giovanni Bertello, two bishops, the director of the pontifical villas, and the mayor and parish priest. Off the helicopter and into a car, Benedict will head to the palace that he will call home for the coming months. From a window of the palace, Benedict will make one final wave to the crowd at the papal retreat.

It is there, at 8:00 p.m., that Benedict's resignation will take effect once and for all. Once the gates to the residence close, the Swiss Guards will leave Benedict's side for the last time, their time protecting the pontiff completed.

Pope Benedict's Last Sunday Prayer Service

For some U.S. Catholics in Rome for the historic occasion, Benedict's departure is bittersweet. Christopher Kerzich, a Chicago resident studying at the Pontifical North American College of Rome, said Wednesday he is sad to see Benedict leave, but excited to see what comes next.

"Many Catholics have come to love this pontiff, this very humble man," Kerzich said. "He is a man who's really fought this and prayed this through and has peace in his heart. I take comfort in that and I think a lot of Catholics should take comfort in that."

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US nuclear dump is leaking toxic waste

Waste from the production of US nukes is on the loose. Toxic cargo is escaping from six of the 177 ageing tanks at the Hanford site in Washington state where the nation stores two-thirds of its high-level nuclear waste, most of it from the production of nuclear bombs.

The site houses 200 million litres of radioactive and hazardous waste, and 67 tanks have leaked waste before. The new leaks undermine recent reassurances that the dump is now secure.

The biggest worry is that highly radioactive sludges containing heat-generating isotopes are corroding the bottoms of the tanks, following work to drain off most of the liquid waste which allowed the isotopes to collect there, says Bob Alvarez of the Institute of Policy Studies in Washington DC.

"There is no immediate public health risk," said Lindsey Geisler, a spokesperson for the Department of Energy. However, much of the waste has already contaminated groundwater, says Tom Carpenter of Hanford Challenge, an environmental watchdog in Seattle, Washington.

If you would like to reuse any content from New Scientist, either in print or online, please contact the syndication department first for permission. New Scientist does not own rights to photos, but there are a variety of licensing options available for use of articles and graphics we own the copyright to.

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Study finds donkey meat in South African burgers

JOHANNESBURG: Unlike Europeans, South Africans do not unwittingly eat horsemeat in their beef burgers and sausages, but they do eat donkey, water buffalo and goat meat, according to a study by the Stellenbosch University.

Over two thirds of meat products tested contained undeclared ingredients, according to a recent research study, prompted by revelations about food production in Europe.

"Our study confirms that the mislabelling of processed meats is commonplace in South Africa and not only violates food labelling regulations, but also poses economic, religious, ethical and health impacts," said animal sciences professor Louw Hoffman.

"Unconventional species such as donkey, goat and water buffalo were also discovered in a number of products," said Hoffman in a statement on the university website.

Up to 68 percent of 139 meat samples from shops and butcheries had irregular ingredients, the DNA-based study found, with pork and chicken most often substituted for other meat.

Researchers even found plant matter in the minced meat, burger patties, sausages and deli and dried meat.

A lack of tough policing had facilitated the practice, said Hoffman.

"Even though we have local regulations that protect consumers from being sold falsely described or inferior foodstuffs, we need these measures to be appropriately enforced."

A vast food scandal has erupted in Europe after horsemeat was found in so-called beef ready-made meals and burgers.

- AFP/al

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Thousands say farewell to Pope Benedict

STORY HIGHLIGHTS

• NEW: Benedict XVI says there were "times when the Lord seemed to sleep" in past 8 years


• NEW: "I really felt all the support and all the love, the prayers," says a priest in the crowd


• Benedict: The Roman Catholic Church has been through stormy waters, but God won't let it sink


• He is to leave office at 8 p.m. Thursday for a life of seclusion and prayer

Rome (CNN) -- In front of rapt crowds, Pope Benedict XVI spoke of moments of struggle as well as joy Wednesday during his final public address from a stage set up in St. Peter's Square.

Vatican reveals Pope Benedict's new title

In an unusually personal message, he told how there were "times when the water was rough and the wind, as in the whole history of the church, and the Lord seemed to sleep."

But even as the church passes through stormy seas, God will "not let her sink," he added, in what was his final general audience before he steps down Thursday evening.

Those words will be seen by many as a comment on the series of child sex abuse scandals and corruption claims that have rocked the Roman Catholic Church in the course of his pontificate.

Benedict recounted how when he was asked to be pope eight years ago, he had prayed for God's guidance and had felt his presence "every day" since.

Are you at pope's address? Share your experiences.

"It was a part of the journey of the church that has had moments of joy and light, but also moments that were not easy," he said.

'Tough choices'

Dressed all in white and looking serene, the pope used his last general audience to call for a renewal of faith and speak of his own spiritual journey through eight years as leader of the world's 1.2 billion Catholics.

Benedict thanked the cardinals, the clergy in Rome, Vatican officials and priests worldwide for their work, as well as their congregations, saying "the heart of a pope extends to the whole world."

Knowing his strength was fading, he had taken the step of resignation well aware of its gravity and novelty, but also "with a deep peace of mind," he said.

"Loving the church also means having the courage to make tough choices," he said, as he called on the faithful to pray for him and the new pope.

Benedict gave an insight into the life of the pontiff, describing it as without any kind of privacy, with his time devoted entirely to the church -- perhaps particularly difficult for a man known for his love of scholarship.

His life in retirement will be "simply a return to the private place. My decision is to forgo the exercise of active ministry, not revoke it. In order to return to private life, not to a life of travel, meetings, receptions, conferences and so on," he said.

As he finished, cheers erupted from the tens of thousands gathered in the square -- acknowledged by Benedict with an open-armed embrace.

'Support and love'

Benedict's final papal audience

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Vatican officials said 50,000 tickets had been handed out for Benedict's last general audience -- but authorities said they had prepared for as many as 200,000 people to show up to witness the historic moment in person.

The pope in retirement: What to expect

Benedict, who spoke first in Italian, also gave greetings in French, German and English, among other languages, reflecting the church's global reach.

CNN iReporter Joel Camaya, a priest from the Philippines who is studying in Rome, said it was very moving to be among those gathered in the huge plaza.

Waves of applause rose up to meet Benedict, especially when he addressed the pilgrims in different languages. "I really felt all the support and all the love, the prayers, from those who were present," he said.

After the pope left, people's mood was festive, with many chatting or singing, Camaya said, but at the same time nostalgic because it's the last time they will hear Benedict speak.

"Especially for people who have got used coming here for the audience and for the (Sunday) Angelus, it's something to be missed," he said.

Those lucky enough to have tickets for the final audience listened from seats in front of St. Peter's Basilica. Among them were many of the Roman Catholic Church's senior clergy. Others packed around the edges of the square and surrounding side streets, hoping to catch a glimpse of the pontiff.

Among the crowds were groups of pilgrims who had traveled to Rome for the special occasion, as well as local residents and curious visitors keen to share in the moment.

Opinion: Benedict a pope aware of his flaws

Benedict arrived and left in his Popemobile, allowing him to pass close by many people in St. Peter's Square.

Standing in the glass-topped vehicle, flanked by security, he waved as he slowly made his way along pathways through the crowds. Some waved flags and banners as they stood under cold but clear skies.

Normally in winter, the pope would give his weekly Wednesday general audience inside a hall within Vatican City, but the event was moved outside because of the anticipated huge crowds.

Pontiff emeritus

The pope didn't give the usual brief personal greetings to people afterward, but was to meet with delegations of heads of state in Vatican City.

Benedict, who stunned the world's Catholics when he announced his resignation just over two weeks ago, will leave office at 8 p.m. local time Thursday.

At that point, a transition period will begin, as around 115 cardinals gather in Rome to pick a successor in a secretive election known as a conclave.

The Vatican has been rewriting the rules to cope with an almost unprecedented situation -- Benedict is the first pope to resign in nearly 600 years.

He will meet with the cardinals Wednesday and Thursday, before being flown by helicopter to the papal summer residence at Castel Gandolfo.

Pope to resign: Your thoughts

There, from a balcony, he will greet crowds one last time before his resignation takes effect and the Swiss Guards, who by tradition protect the pope, ceremonially leave the residence's gate.

More details were given Tuesday of how the 85-year-old's life in retirement will play out.

He will keep the papal title Benedict XVI, rather than reverting to the name Joseph Ratzinger, and will be referred to as "his holiness," said the Rev. Federico Lombardi, a Vatican spokesman.

He will also go by the title his holiness "pontiff emeritus" or "pope emeritus."

Interference fears

Pope Benedict XVI wearing red shoes.

Living out of the public eye in a small monastery within Vatican City, Benedict will wear a simple white robe, without the papal red cape, and will swap his red shoes for brown ones. He is expected to devote his time to prayer and study.

Catholic author Michael Walsh told CNN he was unsurprised by Benedict's desire for more privacy.

"He's a rather private man. He wants to get back to his books and his cats, he wants to get back to prayer," he said. "He's obviously coming towards the end of his life -- he's 85 -- so I understand that."

But, Walsh added, "what I don't understand is that he says he wants to be part of it all, which could be disastrous if you take it at face value," referring to Benedict's promise not to abandon the church.

"The notion that you have two people that claim to be pope, in a sense, is really going to be very confusing," Walsh said.

Vatican officials have said they don't anticipate any interference from Benedict as a new pope takes office.

However, his influence will be felt in as much as he appointed 67 of the cardinals who will enter the conclave.

Whoever his successor may be will have plenty on his plate, from allegations swirling in the Italian media that gay clergy may have made themselves vulnerable to blackmail by male prostitutes -- a claim forcefully denied by the Vatican -- to the festering issue of the church's handling of child abuse by priests.

The Vatican said Monday that a report by three cardinals into leaks of secret Vatican documents, ordered by Benedict last year and seen only by him, would be passed on to the new pontiff.

Cardinals' conclave

Meanwhile, the cardinals who must elect the new pope are already gathering in Rome, Lombardi said.

The dean cardinal will on Friday summon the cardinals to a general congregation, Lombardi said. That could come as soon as Monday, although the date is not yet fixed.

The cardinal-electors will then decide exactly when to hold the conclave, during which they will select a peer via paper ballot. The voting process will end when only when one cardinal gains two-thirds support.

Special prayers will be said during the "sede vacante," or empty seat period, seeking guidance for the election of the new pope. The cardinals will lead the prayers.

After his resignation, Benedict, who cited the frailty of age as the reason he resigned, will no longer use the Fisherman's Ring, the symbol of the pope, Lombardi said. The ring will be destroyed, along with Benedict's papal seal, after his departure from office.

CNN's Barbie Latza Nadeau reported from Rome and Laura Smith-Spark wrote and reported from London. Vatican correspondent John Allen and Sarah Brown contributed to this report.

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Gun control fight entering final round in Senate

Senate lawmakers this week are beginning what appears to be their final push to pass gun control legislation in response to the deadly massacre at a Newtown, Conn., elementary school in December.

On Wednesday, Sen. Dianne Feinstein, D-Calif., is chairing a Senate Judiciary Committee hearing on the "Assault Weapons Ban of 2013," which she introduced last month. The following day, the Judiciary Committee plans to consider the assault weapons ban, which would also ban high-capacity ammunition magazines, as well as three other bills. 

The assault weapons ban is seen as having virtually no chance to get through Congress. The decision by Senate Judiciary Committee Chairman Patrick Leahy, D-Vt., to nonetheless consider it in committee signals that the Senate is taking a piecemeal approach to passing gun control legislation, rather than trying to pass a comprehensive bill. That's because the assault weapons bill, which has a good chance to clear the committee, would almost certainly drag down the other gun control legislation if it were part of a comprehensive package presented to the full Senate. Feinstein herself acknowledged this week that her bill faced "very tough" prospects on the Senate floor.

The other gun control bills scheduled to be taken up Thursday are a Leahy-backed measure to combat illegal arms trafficking; a bill sponsored by Sen. Barbara Boxer, D-Calif., focused on school safety; and a bill mandating universal background checks sponsored by Sen. Chuck Schumer, D-N.Y.  

Because Judiciary Committee rules allow any senator to ask for a one-week delay, it is likely the markup will be postponed until March 7. (A spokesman for the ranking member of the committee, Sen. Charles Grassley, R-Iowa, said in a statement that no decision had been made but that "there are some shenanigans going on" because a final version of Schumer's bill has yet to be introduced.) The Judiciary Committee will put together final versions of the bills and vote on them, and the Senate leadership can then decide how to bring them to the Senate floor for consideration.

Schumer has been working with Sen. Tom Coburn, R-Okla., and two other senators to reach compromise on the background check bill. The parties have reached an impasse over the issue of whether gun sellers should be forced to keep a record of gun sales.

By law, the federal government must destroy evidence of background checks within 24 hours - otherwise, some argue, the government would have a de facto federal gun registry. Schumer thus argues that sellers should be required to maintain a record of the sale.

The idea is that if a gun is used in a crime and is traced to the seller, the seller would be able to produce a record of the transaction. That incentivizes the seller to perform the background check. That's because he would be in trouble if he sold the weapon to someone who the government could show would have failed a background check.

Jim Kessler of the centrist-Democratic think tank Third Way, who was formerly with Americans for Gun Safety, called the records "critically important."

"It is very difficult to enforce a universal background check law without being able to ask someone to prove that they did the background check," he said.

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Pope Thanks Crowd in Final Address

On his final full day as the leader of the Roman Catholic Church, Pope Benedict XVI thanked a huge crowd for respecting his historic decision to step down and told them that God will continue to guide the church.

"The decision I have made, after much prayer, is the fruit of a serene trust in God's will and a deep love of Christ's Church," Benedict said to cheers in his last public words as pope.

Benedict, 85, is the first pope to resign in 600 years. He told the crowd today that he was "deeply grateful for the understanding, support and prayers of so many of you, not only here in Rome, but also throughout the world."

Pope Benedict's Last Sunday Prayer Service

Under sunny skies on this late February day, hundreds of thousands of people, some waving flags, some banners, flocked to Vatican City to see Benedict make a final lap around St. Peter's Square. Throughout his eight-year papacy, Benedict has conducted a weekly audience from St. Peter's. Before delivering his last papal address today, Benedict waved to the festive group of supporters as he toured the square in his glass-encased popemobile.

The city of Rome planned for more than 200,000 people to head to the Vatican for today's event. Streets around St. Peter's were blocked off to cars as pedestrians from around the world headed to the square.

The Conclave: Secret World of Picking the Pope Watch Video

Papal Appearance: Faithful Flock to Saint Peter's Square Watch Video

9 Men Who Could Replace Pope Benedict XVI

The conclave to elect Benedict's replacement will start next month at a date yet to be determined. Benedict issued a decree known as a "motu poprio" that will allow cardinals to convene the conclave sooner than the March 15 date that would have been mandated under the old rules.

Benedict today asked the faithful to pray for him and for the new pope.

"My heart is filled with thanksgiving to God who ever watches over his church," Benedict said.

The German-born Benedict, who had appeared frail at times in recent months, seemed more energized in his remarks today. He has said he will devote more time to prayer and meditation after he leaves the papacy.

Benedict will meet Thursday with his cardinals in the morning and then flies by helicopter at 5 p.m. to Castel Gandolfo, the papal residence south of Rome. Benedict will greet parishioners there from the palazzo's balcony, his final public act as pope.

Then, at 8 p.m., the exact time at which his retirement becomes official, the Swiss Guards standing outside the doors of the palazzo at Castel Gandolfo will go off duty, their service protecting the head of the Catholic Church finished.

In retirement, Benedict will continue to wear white and will be called "Pope Emeritus," or the "Supreme Roman Pontiff Emeritus" or "Your Holiness," the Vatican announced Tuesday. Benedict will ditch his trademark red shoes, opting for a pair of brown shoes given to him on a trip to Mexico. But he will still reside on Vatican grounds in a former nunnery.

Benedict's final days as pope have been marked by controversy. For nearly a week now Italian newspapers speculated that Benedict really resigned because of a dossier he was given detailing a sex and blackmail scandal in the Catholic Church. The Italian media news reports do not state any attribution.

It turns out a dossier does exist. The Vatican spokesman Monday underscored that the contents of the dossier are known only to the pope and his investigators, three elderly prelates whom the Italian papers have nicknamed "the 007 cardinals."

But the dossier itself will remain "For the Pope's Eyes Only."

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China takes steps to clean up 'cancer villages'

The Chinese government has acknowledged the existence of "cancer villages": areas where rates of cancer are unusually high, probably because of industrial and agricultural contamination of drinking and irrigation water.

The reference to the cancer clusters was in China's first ever five-year plan for environmental management of chemicals, released on 20 February. The Chinese media, translating parts of the report, said it links water pollution to "serious cases of health and social problems like the emergence of cancer villages in individual regions".

The term has caught on over the past few years as the media in China and elsewhere reported on apparent cancer hotspots. It gained prominence in 2009 when a journalist plotted 40 of them on a Google Map. Some reports have suggested there might be more than 450 such clusters.

According to recent data, deaths from cancer in China increased by 80 per cent between 1970 and 2004. The disease now accounts for 25 per cent of deaths in cities and 21 per cent in rural areas. However, people in China have an 18.9 per cent risk of getting cancer before the age of 75, compared with 29.9 per cent for people in the US and 26.3 per cent in the UK.

One "typical cancer village", as it was called by researchers from Dezhou University in Shandong province who studied it in 2008, had between 80 and 100 deaths from cancer over five years in a population of only 1200.

But proving a link between pollution and cancer requires more detailed evidence, says Tim Driscoll, an epidemiologist at the University of Sydney and science adviser to Cancer Council Australia. However, Driscoll also says it doesn't really matter – if there is dangerous pollution anywhere, it should be cleaned up.

And that is the plan. China's Ministry for Environmental Protection has drawn up a list of 58 chemicals that will be tracked with a registry, including known and suspected carcinogens and endocrine disrupters. Before the end of the 2015, they will subdivide the list into chemicals to be eliminated and those to be reduced.

Big shift

Creating a plan to eliminate some chemicals is a big shift, says Yixiu Wu, a Greenpeace East Asia campaigner based in Beijing, who says even committing to controlling these chemicals would have been a step forward.

The ministry's acknowledgement of the problem is "really important and it is another reflection of the government's shift towards more transparency in pollution information," says Sabrina Orlins from the Institute of Public and Environmental Affairs, a non-profit body in Beijing.

"Increased environmental information leads to increased public awareness where people can have the chance to exert pressure on big water polluters to adopt clean-up measures and be more accountable," she says.

That accountability is where the five-year plan is lacking, says Wu. "It is still a question whether the government is willing to release all the information about the factory locations and their environmental risk," she says. "It is very important for people who are living nearby."

Wu says the motivation to develop the plan comes from an increasing awareness of the human cost of pollution as well as the country signing up to several international conventions designed to curb pollution.

If you would like to reuse any content from New Scientist, either in print or online, please contact the syndication department first for permission. New Scientist does not own rights to photos, but there are a variety of licensing options available for use of articles and graphics we own the copyright to.

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Mobile makers set sights on grandparents

BARCELONA: As smartphone giants Apple and Samsung battle for the wallets of tech-savvy youngsters, a growing number of manufacturers is trying to lure a fast-growing new market: their grandparents.

Handset makers at the world's biggest mobile fair in Barcelona, Spain, showed off a slew of new devices aimed at the hundreds of millions of older people put off by the complexity of the latest iPhones and Android-powered smartphones.

One of the leaders of the segment in Europe, Austrian firm Emporia, launched a new handset, the Emporia Connect, at the February 24-28 Mobile World Congress.

The sleek-looking black and silver flip phone is designed not to be "stigmatising" yet easy enough for older buyers to use, said Emporia's general manager for France, Christophe Yerolymos.

It has a keypad with larger numbers and an emergency button that will send an SOS along with data pinpointing the location of the phone.

The phone features a system called Emporia Me, with an array of remote control features for the owner's family, allowing a child or grandchild to check the device's location, battery status, or ensure the volume is up.

While it is not a smartphone and has no mapping service, it does have an orientation feature that lets a user push a single button to get turn-by-turn audible instructions for returning to a car while on a shopping trip, for example.

"Emporia is a company in growth, strong growth, even in the heart of the economic crisis we're in at the moment in Europe," said Yerolymos.

Japan's Fujitsu rolled out a European version of a smart phone for seniors, the Stylistic S01, which first launched in mid-2012 in Japan where it lured buyers from a wider age range than the group anticipated, from 45 years upwards.

It is an Android-based smartphone with large, simplified icons, and a "family alert" button that will send a message along with geo-localisation data.

But it also has an unusual touch-screen that will only respond when the user presses a bit harder so as to avoid launching applications by mistake, said Fujitsu Europe-Middle East-Africa product marketing director James Maynard.

"You can actually pre-touch and then when you know which button you want to press, you can exert a little bit more pressure," he said.

"It's made to grow with you so as you become more confident you naturally will exert more pressure on to the device. It's a stepping stone from a feature phone to a smartphone and using a touch panel for the first time."

Kapsys, a French firm, showed off its SmartConnect handset aimed at seniors.

The firm is in discussions with operators including Orange and is hoping to launch the device for about 400 euros (US$520) in Europe in June and then in the United States by the end of 2013, said chief executive Aram Hekimian.

The SmartConnect boasts familiar features for the market: large icons, text in large characters, remote access for family members and also an SOS button with geo-localisation.

But it also incorporates a digital magnifier, enabling the user to roll the phone over text to facilitate reading, for example. The phone is rich in voice command functions, too, allowing the user to avoid fiddly buttons.

"Seniors today are used to having access to technology. As they get older they will want access to the same functions, the same technologies," Hekimian said.

Kapsys estimated the potential market for the telephone at 600 million people, he said. "Our goal is to capture one percent of that market by 2015."

-AFP/fl

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Could your child be a bully?

Boys and girls use physical violence to exert their power, researchers say.

STORY HIGHLIGHTS

• A sociologist describes bullying in schools as "social combat"


• Students are fighting to improve their social status through violence or rumors


• Bullies are often bullied themselves as they fight to the top, experts say

Editor's note: Don't miss the premiere of "The Bully Effect" on "AC360" at 10 p.m. ET Thursday, Feburary 28. And visit CNN.com Health on Wednesday, February 27, for our story on how technology has changed bullying.

(CNN) -- Eva was a bully. Tall for her age, she used her height to intimidate her peers. She made fun of those without designer clothes and got suspended several times for fighting.

She was also well-liked, outgoing, funny -- and a victim of bullying herself.

"When you're in junior high, you're just trying to figure out who you are," the 24-year-old Los Angeles resident remembers. She says she bullied others because she was, as were most kids, insecure.

As a parent, you probably have a picture in your head of the kid you'd vote Most Likely To Bully Others. He's burly, wears a letter (or leather) jacket and has been a senior longer than most students are in high school.

But experts say the bullies tormenting students nowadays aren't like the ones we see on the big screen. It's not just a small group of jocks, or the loner stoner pushing kids into lockers between periods. It can be almost anyone, at any time. And the most likely targets of bullies? The bullies themselves.

"AC360": Fighting for your bullied child

Sociologist Robert Faris calls it "social combat." He says the majority of bullying takes place in the middle of a school's social hierarchy, where students are jostling with each other for higher status.

Think of it like a giant game of king of the hill. Each kid is struggling to make it to the top, not afraid to step on others to get there. The closer you get to being king, the more vicious the competition gets between rivals.

"Bullying works," Faris says simply. "When kids pick on other kids, their status increases."

Faris teamed up with CNN's "AC360" in 2011 to study bullying at a high school in Long Island, New York. Researchers asked more than 700 students about their friendship circles and bullying behaviors. Faris has also completed similar studies in rural North Carolina -- where the demographics were different, but the results were the same.

Faris found 56% of students surveyed were involved in aggression, victimization or both at any given time. The main motive behind a student's bullying was to increase his or her popularity. The higher a student rose on the social ladder, the more likely they were to bully others -- and to be bullied themselves.

"There's always some tension in these friendship groups," Faris says. "Who's closer to whom and who's hanging out together, and I think that's what's driving a lot of these kids."

The same is true for middle-school students, according to UCLA psychology professor Jaana Juvonen, who's been studying bullying since the mid-1990s.

Juvonen and her team recently followed more than 1,800 students through seventh and eighth grade to determine how physical aggression and the spreading of rumors played a part in social prominence.

"What we've learned about bullying during the last decade or so is that it takes many forms," Juvonen says. "Some of these forms are extremely hard to detect. They're covert."

Bullying over food allergies

Administrators have cracked down on physical aggression in schools, enforcing zero tolerance policies for fighting between students. But Juvonen says that has led to subtler forms of bullying.

Rumors -- most often about a student's sexuality or insulting family members -- play a big role, according to Juvonen's research.

Faris recalls he got his "ass kicked" regularly as a child. Two brothers used hunt him down every day after school as he walked home from the bus stop.

But he says a daily beating was much less painful than the isolation he felt when his family moved across the country and he couldn't seem to fit in. "That was much harder to deal with than a bloody nose," he remembers.

In his later research, Faris found friends often exclude each other from gossip sessions or parties to put down a rival and boost their own status. Social media has also increased the prominence of this abstract form of bullying.

"The status competition is always there; there's no break from it," he says. "They go home and they get online and they see their friends doing things together and they're not invited, or worse, people are harassing them."

If the 2004 movie "Mean Girls" taught us anything, it's that girls are the queens of covert bullying; no one could make you feel as badly about the way you look as the popular clique. Juvonen's study, however, found boys and girls spread rumors to boost their social status -- and that both genders use physical aggression to assert power.

Eva knows this firsthand. She and her friends used to "jump" other girls, pulling their hair or punching them just because they talked to the wrong guy.

What really makes schools safer?

"I look back and shake my head," says Eva, who asked CNN not to use her last name because she's applying for medical school next year. But "when you're in elementary school and junior high, there's nothing else. We don't have responsibilities. We don't have skills. We buy candy and do homework."

"Part of the problem here is that kids are kind of stuck in a cage," Faris agrees. "They don't have formal roles and responsibilities. ... They have to work status out for themselves."

And if we put adults in a similar situation, he says, we'd see the same behavior.

For that reason, Faris advocates programs and activities that de-emphasize social status and re-emphasize the qualities of a good friend. He hopes that one day students will leave high school with a small group of close friends, rather than the 300 or 400 they know on Facebook.

Tips for parents

1. Be a good example -- kids often learn bullying behavior from their parents.

2. Teach your child what it means to be a good friend.

3. Make your home a safe haven for kids after school.

4. Use teachable moments on TV to show the power of bystanders.

5. Listen. Don't be in denial about incidents that are brought to your attention.

Juvonen says anti-bullying programs should focus on bystanders -- teaching kids that watching is just as bad as doing the bullying yourself. Studies in Canada have shown, she says, that if a child intervenes, the bullying incident stops within seconds.

Juvonen suggests parents use teachable moments on TV or in the news to show children right from wrong in a bullying situation. "They could be the ones pointing out to their kids that they have a lot of power as bystanders," she says.

Juvonen knows it's unreasonable to expect a child to be brave on his or her own; no one wants to become the next victim. So she suggests teaching kids about the weight of a group.

"Bullying involves this imbalance of power where the bully has the high status and is using this status," she says. "You can try to offset the power balance by telling kids to join one another as they try to intervene."

Parents also need to be aware of how easy it is for children to get sucked in to this social combat, Juvonen says. They can't be in denial about incidents that are brought to their attention.

"Anyone in that situation should be asking, 'What's going on?' 'What is it about these situations that brings about this kind of behavior?' " Parents should be having frequent conversations about what's happening at school, know who their children are hanging out with and keep an eye out for warning signs that something's not quite right, she says.

"The parent's role is really to be there as a buffer, be the one who listens."

Rejection, bullying are risk factors among shooters

Before she was a bully, Eva was a victim, she says. Older kids would call her names or hold her down to show they were stronger. She's the baby in the family, she says, and her parents didn't have time to pay attention to what was going on.

"(Bullying) comes from home, from family members," she says. "We hear our cousins and uncles talking crap about someone. We think it's funny. We think it's cool."

Eva never faced consequences for bullying, other than her suspensions. She believes that if someone had sat her down and told her that bullying was wrong, she would have listened. For years, she worried that one of her former victims would invite her on the "Maury Show" for a face-to-face showdown. She still feels badly about the pain she inflicted.

"I can't take it back," she says. "But if I could do it all over again, I wouldn't do what I did."

Did you ever bully anyone? Share your story in the comments below or on iReport.

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