Sex to burn calories? Authors expose obesity myths

Fact or fiction? Sex burns a lot of calories. Snacking or skipping breakfast is bad. School gym classes make a big difference in kids' weight.

All are myths or at least presumptions that may not be true, say researchers who reviewed the science behind some widely held obesity beliefs and found it lacking.

Their report in Thursday's New England Journal of Medicine says dogma and fallacies are detracting from real solutions to the nation's weight problems.

"The evidence is what matters," and many feel-good ideas repeated by well-meaning health experts just don't have it, said the lead author, David Allison, a biostatistician at the University of Alabama at Birmingham.

Independent researchers say the authors have some valid points. But many of the report's authors also have deep financial ties to food, beverage and weight-loss product makers — the disclosures take up half a page of fine print in the journal.

"It raises questions about what the purpose of this paper is" and whether it's aimed at promoting drugs, meal replacement products and bariatric surgery as solutions, said Marion Nestle, a New York University professor of nutrition and food studies.

"The big issues in weight loss are how you change the food environment in order for people to make healthy choices," such as limits on soda sizes and marketing junk food to children, she said. Some of the myths they cite are "straw men" issues, she said.

But some are pretty interesting.

Sex, for instance. Not that people do it to try to lose weight, but claims that it burns 100 to 300 calories are common, Allison said. Yet the only study that scientifically measured the energy output found that sex lasted six minutes on average — "disappointing, isn't it?" — and burned a mere 21 calories, about as much as walking, he said.

That's for a man. The study was done in 1984 and didn't measure the women's experience.

Among the other myths or assumptions the authors cite, based on their review of the most rigorous studies on each topic:

—Small changes in diet or exercise lead to large, long-term weight changes. Fact: The body adapts to changes, so small steps to cut calories don't have the same effect over time, studies suggest. At least one outside expert agrees with the authors that the "small changes" concept is based on an "oversimplified" 3,500-calorie rule, that adding or cutting that many calories alters weight by one pound.

—School gym classes have a big impact on kids' weight. Fact: Classes typically are not long, often or intense enough to make much difference.

—Losing a lot of weight quickly is worse than losing a little slowly over the long term. Fact: Although many dieters regain weight, those who lose a lot to start with often end up at a lower weight than people who drop more modest amounts.

—Snacking leads to weight gain. Fact: No high quality studies support that, the authors say.

—Regularly eating breakfast helps prevent obesity. Fact: Two studies found no effect on weight and one suggested that the effect depended on whether people were used to skipping breakfast or not.

—Setting overly ambitious goals leads to frustration and less weight loss. Fact: Some studies suggest people do better with high goals.

Some things may not have the strongest evidence for preventing obesity but are good for other reasons, such as breastfeeding and eating plenty of fruits and vegetables, the authors write. And exercise helps prevent a host of health problems regardless of whether it helps a person shed weight.

"I agree with most of the points" except the authors' conclusions that meal replacement products and diet drugs work for battling obesity, said Dr. David Ludwig, a prominent obesity research with Boston Children's Hospital who has no industry ties. Most weight-loss drugs sold over the last century had to be recalled because of serious side effects, so "there's much more evidence of failure than success," he said.

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Online:

Obesity info: http://www.cdc.gov/obesity/data/trends.html

New England Journal: http://www.nejm.org

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Marilynn Marchione can be followed at http://twitter.com/MMarchioneAP

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Asian shares off highs, Fed's stance weighs on dollar

LONDON (Reuters) - European shares fell for a second straight day and the euro slid on Thursday, as weak German retail sales and poor earnings at its biggest bank added to investors' nerves after a shock fourth quarter contraction in the U.S. economy.

Data on Wednesday showed U.S. GDP slipped back 0.1 percent, though the country's central bank, the Federal Reserve, indicated the pullback was likely to be brief as it repeated its pledge to continue providing support.

European shares, which have surged 3.7 percent this month, took their biggest daily hit of the year on Wednesday, and a plunge in German retail sales and a huge quarterly loss from Deutsche Bank dashed hopes of a quick rebound.

London's FTSE 100 <.ftse>, Paris's CAC-40 <.fchi> and Frankfurt's DAX <.gdaxi> were all around 0.3 percent lower by 0830 GMT as trading gathered pace after shares in Asia posted modest gains. <.l><.eu><.n/>

"Perhaps the German retail sales have contributed a little bit, but we knew that Q4 was weak, so I would it attribute it more to earnings news," said Chris Scicluna, an economist at Daiwa Capital Markets.

"The Deutsche Bank loss does look to be on the sizable side. There has clearly been some mismatch between financial markets and the real economy so that does lend itself to a bit of a pullback."

In the currency market, the German jitters also left the euro under pressure. It was well off Wednesday's 14-month high at $1.3548, though the Federal Reserves promise of continued support was expected to mitigate the fall by keeping downward pressure on the dollar.

The nervy market atmosphere also pushed up Spanish and Italian government bond yields as some investors switched from higher-yielding debt into German Bunds.

Spanish 10-year yields rose 10 basis points on the day to 5.31 percent, while equivalent Italian debt rose 10 bps to 4.38 percent.

German Bund futures were half a point higher, spurred on by the Fed's determination to maintain its policy of stimulus for the U.S. economy.

Spot gold hovered near its one-week high of $1,683.39 an ounce reached on Wednesday. A weak yen pushed the most active gold contract on the Tokyo Commodity Exchange to a record high of 4,944 yen a gram on Thursday.

(Reporting by Marc Jones; Editing by Will Waterman)

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U.N.'s Ban decries "horrors" in Syria, urges end to war

DUBAI (Reuters) - Denouncing "unrelenting horrors" in Syria's war, U.N. Secretary-General Ban Ki-moon appealed on Wednesday for an end to the violence and urged more aid to address a situation he said was catastrophic and worsening by the day.

"How many more people will be killed if the current situation continues?," Ban said, speaking at a conference of donors in Kuwait called to drum up more pledges of financing for U.N. humanitarian efforts.

"I appeal to all sides and particularly the Syrian government, to stop the killing ... in the name of humanity, stop the killing, stop the violence," he said.

More than 60,000 people have been killed since the 22-month-old conflict began, the United Nations says.

The world body warned on Monday that without more money it would not be able to help millions of Syrians and appealed for donations at the aid conference to meet its $1.5 billion target.

Some four million Syrians inside the country need food, shelter and other aid and more than 700,000 more have escaped to neighboring countries since the conflict began, according to the United Nations. Half of the civilians affected by the crisis are children, it says.

SCALE OF CRISIS ESCALATES

Wednesday's conference will seek pledges of $1 billion of aid for Syria's neighbors sheltering refugees and another $500 million to bankroll humanitarian work for 4 million Syrians inside the country.

The aid would fund operations for the first half of this year, but the United Nations has so far received pledges covering just 18 percent of the target, unveiled last month as the scale of Syria's humanitarian crisis escalated sharply.

Even if pledges are made, aid groups have found in the past that converting promises into hard cash can take time.

Nevertheless, there was early positive news for the gathering when Kuwait's emir pledged to give $300 million to the aid effort.

Sheikh Sabah al-Ahmad al-Sabah told the meeting that "horrifying reports" of violence had raised questions over the future of Syria and aid efforts had to be redoubled.

But Ban said much more remained to be done.

"The situation in Syria is catastrophic and getting worse every day," he said. "Every day Syrians face unrelenting horrors," he said, adding this included sexual violence and detentions.

INFRASTRUCTURE BEING DESTROYED

About half of public hospitals and a quarter of schools are damaged, he said, and the country's infrastructure was being systematically destroyed.

Aid officials hope the fact that the conference is being held in Kuwait will encourage other wealthy Gulf Arab states, who have led regional opposition to President Bashar al-Assad, to support the international aid effort.

Many Gulf states have sent assistance, but aid workers say their efforts have been haphazard and rarely coordinated with other aid agencies, hampering their ability to plan a sustained relief program.

Syria's main opposition coalition has criticized the U.N. appeal and its arrangements for distributing aid inside Syria, saying the organization has effectively ceded control to the Syrian government and failed to deliver all but a bare minimum of aid to areas controlled by Assad's opponents.

(Reporting by Sylvia Westall, Writing by William Maclean; Editing by Jon Boyle)

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Critical, long-overdue BlackBerry makeover arrives

TORONTO (AP) — BlackBerry maker Research In Motion Ltd. will kick off a critical, long-overdue makeover when chief executive Thorsten Heins shows off the first phone with the new BlackBerry 10 system in New York on Wednesday.

Repeated delays have left the once-pioneering BlackBerry an afterthought in the shadow of Apple’s trend-setting iPhone and Google’s Android-driven devices. There has even been talk that the fate of the company that created the BlackBerry in 1999 is no longer certain.

Now, there’s some optimism. Previews of the BlackBerry 10 software have gotten favorable reviews on blogs. Financial analysts are starting to see some slight room for a comeback. RIM‘s stock has more than doubled to $ 15.66 from a nine-year low in September, though it’s still nearly 90 percent below its 2008 peak of $ 147.

RIM redesigned the system to embrace the multimedia, apps and touch-screen experience prevalent today. The company is promising a speedier device, a superb typing experience and the ability to keep work and personal identities separate on the same phone.

Most analysts consider a BlackBerry 10 success to be crucial for the company’s long-term viability. Doubts remain about the ability of BlackBerry 10 to rescue RIM.

“We’ll see if they can reclaim their glory. My sense is that it will be a phone that everyone says good things about but not as many people buy,” BGC Financial analyst Colin Gillis said.

Jefferies analyst Peter Misek called it a “great device” and said RIM does have some momentum just months after the Canadian company was written off for dead.

“Six months ago we talked to developers and carriers, and everybody was just basically saying ‘We’re just waiting for this to go bust,’” Misek said. “It was bad.”

The BlackBerry has been the dominant smartphone for on-the-go business people and crossed over to consumers. But when the iPhone came out in 2007, it showed that phones can do much more than email and phone calls. Suddenly, the BlackBerry looked ancient. In the U.S., according to research firm IDC, shipments of BlackBerry phones plummeted from 46 percent of the market in 2008 to 2 percent in 2012.

RIM promised a new system to catch up, using technology it got through its 2010 purchase of QNX Software Systems. RIM initially said BlackBerry 10 would come by early 2012, but then the company changed that to late 2012. A few months later, that date was pushed further, to early 2013, missing the lucrative holiday season. The holdup helped wipe out more than $ 70 billion in shareholder wealth and 5,000 jobs.

Although executives have been providing a glimpse at some of BlackBerry 10′s new features for months, Heins will finally showcase a complete system at Wednesday’s event. Devices will go on sale soon after that. The exact date and prices are expected Wednesday.

Regardless of BlackBerry 10′s advances, though, the new system will face a key shortcoming: It won’t have as many apps written by outside companies and individuals as the iPhone and Android. RIM has said it plans to launch BlackBerry 10 with more than 70,000 apps, including those developed for RIM’s PlayBook tablet, first released in 2011. Even so, that’s just a tenth of what the iPhone and Android offer. Popular service such as Instagram and Netflix won’t have apps on BlackBerry 10.

Gillis said he’ll be looking to see when RIM releases a keyboard version of the new phone. The first BlackBerry 10 phone will have only a touch screen. RIM has said a physical keyboard version will be released soon after. He said a delay could alienate RIM’s 79 million subscribers.

“The No. 1 feature that they like is the physical keyboard,” Gillis said.

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Ashley Judd Splits from Husband Dario Franchitti

01/29/2013 at 08:05 PM EST

Ashley Judd and Dario Franchitti

Robin Marchant/Wireimage

Ashley Judd and Dario Franchitti are splitting after more than a decade of marriage.

"We have mutually decided to end our marriage. We'll always be family and continue to cherish our relationship based on the special love, integrity, and respect we have always enjoyed," Judd, 44, and Franchitti, 39, tell PEOPLE exclusively in a statement on Tuesday.

After being engaged for about two years, the Missing star and the racecar driver tied the knot in a highly private ceremony in Scotland in 2001.

Judd's sister, Wynonna Judd, served as maid of honor, while the groom's brother Mario was the best man. – Julie Jordan

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Soldier with new arms determined to be independent

BALTIMORE (AP) — After weeks of round-the-clock medical care, Brendan Marrocco insisted on rolling his own wheelchair into a news conference using his new transplanted arms. Then he brushed his hair to one side.

Such simple tasks would go unnoticed in most patients. But for Marrocco, who lost all four limbs while serving in Iraq, these little actions demonstrate how far he's come only six weeks after getting a double-arm transplant.

Wounded by a roadside bomb in 2009, the former soldier said he could get by without legs, but he hated living without arms.

"Not having arms takes so much away from you. Even your personality, you know. You talk with your hands. You do everything with your hands, and when you don't have that, you're kind of lost for a while," the 26-year-old New Yorker told reporters Tuesday at Johns Hopkins Hospital.

Doctors don't want him using his new arms too much yet, but his gritty determination to regain independence was one of the chief reasons he was chosen to receive the surgery, which has been performed in the U.S. only seven times.

That's the message Marrocco said he has for other wounded soldiers.

"Just not to give up hope. You know, life always gets better, and you're still alive," he said. "And to be stubborn. There's a lot of people who will say you can't do something. Just be stubborn and do it anyway. Work your ass off and do it."

Dr. W.P. Andrew Lee, head of the team that conducted the surgery, said the new arms could eventually provide much of the same function as his original arms and hands. Another double-arm transplant patient can now use chopsticks and tie his shoes.

Lee said Marrocco's recovery has been remarkable, and the transplant is helping to "restore physical and psychological well-being."

Tuesday's news conference was held to mark a milestone in his recovery — the day he was to be discharged from the hospital.

Next comes several years of rehabilitation, including physical therapy that is going to become more difficult as feeling returns to the arms.

Before the surgery, he had been living with his older brother in a specially equipped home on New York's Staten Island that had been built with the help of several charities. Shortly after moving in, he said it was "a relief to not have to rely on other people so much."

The home was heavily damaged by Superstorm Sandy last fall.

"We'll get it back together. We've been through a lot worse than that," his father, Alex Marrocco, said.

For the next few months, Marrocco plans to live with his brother in an apartment near the hospital.

The former infantryman said he can already move the elbow on his left arm and rotate it a little bit, but there hasn't been much movement yet for his right arm, which was transplanted higher up.

Marrocco's mother, Michelle Marrocco, said he can't hug her yet, so he brushes his left arm against her face.

The first time he moved his left arm was a complete surprise, an involuntary motion while friends were visiting him in the hospital, he said.

"I had no idea what was going through my mind. I was with my friends, and it happened by accident," he recalled. "One of my friends said 'Did you do that on purpose?' And I didn't know I did it."

Marrocco's operation also involved a technical feat not tried in previous cases, Lee said in an interview after the news conference.

A small part of Marrocco's left forearm remained just below his elbow, and doctors transplanted a whole new forearm around and on top of it, then rewired nerves to serve the old and new muscles in that arm.

"We wanted to save his joint. In the unlucky event we would lose the transplant, we still wanted him to have the elbow joint," Lee said.

He also explained why leg transplants are not done for people missing those limbs — "it's not very practical." That's because nerves regrow at best about an inch a month, so it would be many years before a transplanted leg was useful.

Even if movement returned, a patient might lack sensation on the soles of the feet, which would be unsafe if the person stepped on sharp objects and couldn't feel the pain.

And unlike prosthetic arms and hands, which many patients find frustrating, the ones for legs are good. That makes the risks of a transplant not worth taking.

"It's premature" until there are better ways to help nerves regrow, Lee said.

Now Marrocco, who was the first soldier to survive losing all four limbs in the Iraq War, is looking forward to getting behind the wheel of his black 2006 Dodge Charger and hand-cycling a marathon.

Asked if he could one day throw a football, Dr. Jaimie Shores said sure, but maybe not like Baltimore Ravens quarterback Joe Flacco.

"Thanks for having faith in me," Marrocco interjected, drawing laughter from the crowd.

His mother said Marrocco has always been "a tough cookie."

"He's not changed that, and he's just taken it and made it an art form," Michelle Marrocco said. "He's never going to stop. He's going to be that boy I knew was going to be a pain in my butt forever. And he's going to show people how to live their lives."

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Associated Press Chief Medical Writer Marilynn Marchione in Milwaukee and AP writer David Dishneau in Hagerstown, Md., contributed to this report.

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Euro surges to 14-month high, Fed decision awaited

LONDON (Reuters) - The euro hit its highest level in over a year on Wednesday and shares, oil and metals were also on the rise, as confidence in the global economic outlook strengthened ahead of European data and the U.S. Federal Reserve's latest policy decision.

The Fed is expected to maintain asset buying at $85 billion a month when it concludes its meeting later and retain its commitment to hold interest rates near zero until unemployment falls to at least 6.5 percent.

European economic confidence data for January at 1000 GMT, ECB crisis loan repayments and Italy's sale of five and 10-year bonds will absorb most of investors' attention before then, as they look for further evidence of a pick-up in the region.

Share markets in London <.ftse>, Paris <.fchi> and Frankfurt <.gdaxi> opened little changed ahead of the data, leaving all eyes on a rally by the euro as it broke above $1.35 for the first time since December 2011.

Alongside the recent rebound in confidence in the euro zone, one of the drivers behind the recent spike has been the eagerness of banks to repay the crisis loans they took from the European Central Bank just over a year ago.

"It (the euro rise) is just a carry on with the current trend, risk is pretty healthy and equities are doing well," said Bank of Tokyo Mitsubishi strategist Derek Halpenny.

"The danger is European policymakers allow a spike (in euro and market rates) as a result of a removal of one of the principle support measures ... With the Fed and the BOJ still easing the euro is clearly the path of least resistance."

An earlier rise in Asian equities meant the MSCI world share index <.miwd00000pus> was up 0.2 percent at a new 21-month high as European trading gathered pace. U.S. stock futures suggested a cautious start on Wall Street.

Strong U.S. housing data on Tuesday and China's promising economic growth forecast for 2013 also supported the upbeat mood and raised expectations for robust demand for fuel and industrial commodities, underpinning oil prices and lifting copper.

In the bond market, German Bund futures opened lower as investors made room for a sale of long-dated German paper and braced for solid demand at an Italian debt auction.

Italy will offer up to 6.5 billion euros of bonds maturing in 2017 and 2022. Traders expect the sale to benefit from yield-hungry investors but flagged the risk of indigestion after a bout of buying in recent months that triggered a sharp rally.

"(The auction) probably (goes) alright but I don't think it trades well afterwards," one trader said.

(Additional reporting by Ana Nicolaci da Costa; Editing by Giles Elgood)

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French seal off Mali's Timbuktu, rebels torch library

GAO, Mali (Reuters) - French and Malian troops retook control of Timbuktu, a UNESCO World Heritage site, on Monday after Islamist rebel occupiers fled the ancient Sahara trading town and torched several buildings, including a library holding priceless manuscripts.

The United States and the European Union are backing a French-led intervention in Mali against al Qaeda-allied militants they fear could use the West African state's desert north as a springboard for international attacks.

The recovery of Timbuktu followed the swift capture by French and Malian forces at the weekend of Gao, another major town in Mali's north that had been occupied by the alliance of jihadist groups since last year.

The two-week-old mission by France in its former Sahel colony, at the request of Mali's government, has driven the Islamist rebels northwards out of towns into the desert and mountains.

Without a shot being fired, 1,000 French soldiers and paratroopers and 200 Malian troops seized Timbuktu airport and surrounded the town on the banks of the Niger River, looking to block the escape of insurgents.

In both Timbuktu and Gao, cheering crowds turned out to welcome the French and Malian troops.

A third town in Mali's vast desert north, Kidal, had remained in Islamist militant hands. But Malian Tuareg MNLA rebels, who are seeking autonomy for their northern region, said on Monday they had taken charge in Kidal after Islamist fighters abandoned it.

A diplomat in Bamako confirmed the MNLA takeover of Kidal.

A French military spokesman said the assault forces at Timbuktu were avoiding any fighting inside the city to protect the cultural treasures, mosques and religious shrines in what is considered a seat of Islamic learning.

But Timbuktu Mayor Ousmane Halle told Reuters departing Islamist gunmen had four days earlier set fire to the town's new Ahmed Baba Institute, which contained thousands of manuscripts.

UNESCO spokesman Roni Amelan said the Paris-based U.N. cultural agency was "horrified" by the news of the fire, but was awaiting a full assessment of the damage.

Ali Baba, a worker at the Ahmed Baba Institute, told Sky News in Timbuktu more than 3,000 manuscripts had been destroyed. "They are bandits. They have burned some manuscripts and also stole a lot of manuscripts which they took with them," he said.

Marie Rodet, an African history lecturer at Britain's School of Oriental and African Studies, said Timbuktu held one of the greatest libraries of Islamic manuscripts in the world.

"It's pure retaliation. They (the Islamist militant rebels) knew they were losing the battle and they hit where it really hurts," Rodet told Reuters. "These people are not interested in any intellectual debate. They are anti-intellectual."

ISLAMISTS "ALL FLED"

The Ahmed Baba Institute, one of several libraries and collections in Timbuktu containing fragile documents dating back to the 13th century, is named after a Timbuktu-born contemporary of William Shakespeare and houses more than 20,000 scholarly manuscripts. Some were stored in underground vaults.

The French and Malians have encountered no resistance so far in Timbuktu. But they will now have to comb through a labyrinth of ancient mosques, monuments, mud-brick homes and narrow alleyways to flush out any hiding fighters.

The Islamist forces comprise a loose alliance that groups Al Qaeda in the Islamic Maghreb (AQIM) with Malian Islamist group Ansar Dine and AQIM splinter MUJWA.

They have retreated in the face of relentless French air strikes and superior firepower and are believed to be sheltering in the rugged Adrar des Ifoghas mountain range, north of Kidal.

The MNLA Tuareg rebels who say they now hold Kidal have offered to help the French-led offensive against the al Qaeda-affiliated Islamists. It was not clear, however, whether the French and Malians would steer their offensive further towards Kidal, or hold negotiations with the MNLA.

FRANCE: MALI "BEING LIBERATED"

The world was shocked by Timbuktu's capture in April by Tuareg fighters, whose separatist rebellion was later hijacked by Islamist radicals who imposed severe sharia (Islamic law).

Provoking international outrage, the Muslim militants - who follow a more radical Salafist brand of Islam - destroyed dozens of ancient shrines in Timbuktu sacred to Sufi Muslims, condemning them as idolatrous and un-Islamic.

They also imposed a strict form of Islamic law, or sharia, authorizing the stoning of adulterers and amputations for thieves, while forcing women to go veiled.

On Sunday, many women among the thousands of Gao residents who came out to celebrate the rebels' expulsion made a point of going unveiled. Other residents smoked cigarettes and played music to flout the bans previously imposed by the rebels.

Hundreds of troops from Niger and Chad have been brought to Gao to help secure the town.

"Little by little, Mali is being liberated," French Foreign Minister Laurent Fabius told France 2 television.

Speaking at a news conference in Paris, French President Francois Hollande said French troops would take a step back once the job of retaking key towns was complete, and Malian and other African troops would take over the task of hunting the rebels.

"They are the ones who will go into the northern part, which we know is the most difficult because that's where the terrorists are hiding," Hollande said.

As the French and Malian troops thrust into northern Mali, African troops for a U.N.-backed continental intervention force for Mali, expected to number 7,700, are being flown into the country, despite severe delays and logistical problems.

Outgoing African Union Chairman President Thomas Boni Yayi of Benin scolded AU states at a weekend summit in Addis Ababa for their slow response to assist Mali while former colonial power France took the lead in the military operation.

Burkina Faso, Benin, Nigeria, Senegal, Togo, Niger and Chad are providing soldiers for the AFISMA force. Burundi and other nations have pledged to contribute.

AU Peace and Security Commissioner Ramtane Lamamra said these regional troops could play a useful "clean-up" role once the main military operations against the Islamist rebels end.

Speaking in Addis Ababa on Monday, U.N. Secretary-General Ban Ki-moon said the U.N. was "actively considering" helping the troop-contributing African countries with logistical support.

(Additional reporting by Richard Valdmanis in Sevare, Mali, Bate Felix and David Lewis in Dakar, Maria Golovina in London, Alexandria Sage, Vicky Buffery and Emmanuel Jarry in Paris, Tiemoko Diallo in Bamako, Abdoulaye Massalatchi in Niamey, Richard Lough and Aaron Masho in Addis Ababa; Writing by Pascal Fletcher; Editing by Andrew Heavens)

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Cómo se desarrolló el Linux de las netbooks educativas

La elección de un sistema operativo para una computadora es una situación que, en situaciones cotidianas al ingresar a una tienda de venta de artículos electrónicos, está marcada por la presencia de la plataforma Windows de Microsoft. Nada de esto impide que los usuarios puedan optar por software libre, sin costo alguno al momento de realizar la descarga e instalación, con propuestas como Ubuntu, Fedora o Mint , por mencionar sólo algunas de las alternativas disponibles en Internet.

Esto mismo ocurrió con el plan Conectar Igualdad, que busca desarrollar su propia plataforma basada en GNU-Linux adaptada a las necesidades de la comunidad educativa, tanto para los docentes como para los alumnos.

La inciativa comenzó a tomar forma en 2010, cuando Javier Castrillo comenzó a trabajar en Conectar Igualdad, el programa del gobierno nacional que distribuye computadoras portátiles para alumnos y docentes de escuelas públicas. Desde aquel momento, con el antecedente de haber coordinado la implementación de estas iniciativas en el ambiente educativo, impulsó con su equipo el desarrollo de Huayra, el sistema operativo libre basado en GNU-Linux de las netbooks escolares.

“Debido al porte de este programa era necesaria una plataforma estable, libre, un estándar y sobre todo con soberanía tecnológica, para no depender de ninguna corporación. Con nuestro sistema nos aseguramos que va a ser constante en el tiempo, que va a ser gratuito para todos aquellos que lo quieran descargar y, por sobre todas las cosas, libre. Todo el código está publicado a disposición para que cualquiera que tenga los conocimientos lo pueda auditar y modificar”, asegura Javier Castrillo, coordinador del Proyecto Huayra.

En una entrevista exclusiva con LA NACIÓN , Javier Castrillo habla sobre la plataforma, sus características y los prejuicios que aún existen sobre el software libre.

¿Qué es Huayra?

Es el sistema operativo libre que las netbooks del Programa Conectar Igualdad van a traer instaladas a partir de este año. Además cualquier persona puede descargarlo en su máquina desde huayra.conectarigualdad.gob.ar

Está basado en Debian GNU/Linux, es seguro, ágil y con un desarrollo realizado en la Argentina, teniendo en cuenta las necesidades tanto de estudiantes como de docentes, y manteniendo nuestra identidad nacional.

¿En qué instancia se encuentra el desarrollo?

Está en fase Beta pero ya se puede bajar y utilizar.

Un mito presente en este tipo de plataformas es que muchas personas creen que no hay virus porque no se conoce mucho. Esto no es verdad, no hay virus porque el sistema no admite virus porque, como dije, está todo a la vista. Los servidores de la bases de datos de los bancos, las grandes bases de datos importantes son de código libre, Google es libre, por ejemplo.

¿Por qué pensaron que era necesario desarrollar un sistema operativo basado en software libre?

Porque se estaban dejando tres millones y medio de máquinas en manos de una corporación, que tiene intereses económicos y sus tiempos. Asimismo, por ejemplo, si queríamos hacer un procesador de texto para las comunidades aborígenes no podíamos hacerlo porque no es posible traducir el Word o si necesitábamos adaptar la placa de red, según el tipo de servicio de determinada zona también teníamos inconvenientes. Tener un software de una empresa es como comprarte un auto y tener el capó soldado.

¿Cuáles son las ventajas que presenta utilizar Huayra frente a Windows?

Es libre y puede ser utilizado por cualquier persona de la comunidad; es gratuito, y ofrece la libertad de poder administrar ese código y hacer las reformas que queremos. Uno de los problemas que veíamos era que los profesores traían un programa para compartir con los chicos y ponían el pendrive en cada computadora y lo bajaban, sin darse cuenta que podían utilizar la red de la escuela. Lo que sucede es que configurar una red no es algo trivial. Huayra, en cambio, autoconfigura la red entonces el profesor deja el programa directamente en una carpeta especial que comparte y los alumnos entran allí para utilizar el programa.

¿En qué se benefician los alumnos al utilizar Huayra?

Que el Estado les brinde su propio sistema operativo libre es un beneficio implícito es más seguro y mucho más rápido. Además, está pensado para que corra en las máquinas más livianas y también funciona bien en las máquinas más viejas.

Otra gran ventaja para los chicos es que tienen una herramienta que sale de la propia escuela, con las necesidades y el aporte de su institución. Hay cientos de aplicaciones del equipo de Huayra y aportadas por las comunidades escolares. En total son casi 30.000 piezas de software.

¿La interfaz es similar a la de Windows o los usuarios verán muchos cambios?

Es similar y además encontrarán programas que no tenían en Windows porque son muy caros. En Huayra, por ejemplo, hay un software para hacer animaciones en 3D que si tuviéramos que comprarlo saldría muy caro. También hay editores de fotos similares a Photoshop.

El procesador de textos de Huayra permite guardarlo en un formato de Word. En el pasado había grandes problemas de compatibilidad entre el software libre y el licenciado pero ahora todo ha evolucionado y ya no existen esos inconvenientes.

Las netbooks de Conectar Igualdad son de diez fabricantes distintos, y tuvimos que trabajar bastante para el desarrollo del sistema operativo, cuenta Javier Castrillo, responsable del proyecto Huayra

Todavía nos falta un buen programa de Autocad 3D, pero tenemos Autocad en 2D. Pero tenemos son muchas herramientas de programación y de robótica incluidas dentro de Hayra.

¿Cómo se realizará la capacitación?

Las netbooks de nuestro programa, a partir de 2012, incluyen TV Digital abierta y allí incluye un montón de tutoriales y paso a paso para poder aprender a utilizarla.

Por otro lado, todas las instancias de capacitación que tiene Educar y el Ministerio de Educación van a tener cursos de Huayra tanto para alumnos como para docentes. Y ya se han formado comunidades de Huayra en Facebook y en Twitter que hacen su propia formación y su aporte a la comunidad.

¿Qué obstáculos tuvieron que sortear?

La principal fue la compatibilidad de hardware. Las netbooks de Conectar Igualdad son de diez fabricantes distintos y tuvimos que trabajar bastante para hacer funcionar nuestro sistema en todos los equipos. Después debimos luchar con los prejuicios que difunden los propios monopolios, que dicen que Linux es difícil, por ejemplo.

Pero ahora estamos muy entusiasmados porque las pruebas están saliendo bien y estamos dentro de los tiempos previstos.

¿Cuáles son los principales proyectos?

La primera etapa de Huayra es que funcione bien en todas las netbooks y en eso estamos abocados. Luego estamos pensando en que funcione en tablets y celulares.

También queremos trabajar para que la TV digital no sirva sólo para ver canales sino que podamos interactuar y brindarle, a través de ella, información útil para el ciudadano.

Y queremos fomentar el desarrollo para que los chicos programen, dándoles herramientas para que puedan programar aunque no sepan hacerlo, para que puedan, por ejemplo, hacer sus propios juegos con las características de su región, de su lenguaje, sus costumbres y que lo compartan con la comunidad.

El software libre en Conectar Igualdad

Huayra toma su nombre del vocablo quechua que significa viento, una analogía que los responsables del proyecto buscan reflejar con la filosofía del proyecto, relacionada con la independencia tecnológica y la libertad que ofrece el software libre. “Es una práctica habitual dentro de la comunidad para que cada programa esté ser representado por un animal. Linux eligió el pingüino, nosotros una vaca”, explica Javier Castrillo.

El equipo de trabajo de Huayra consta de 13 personas, divididos en tres áreas: Desarrollo (programadores), Diseño (artistas, historiadores del arte, diseñadores gráficos) y Sistematización (Sociólogos y estadísticos).

Además de Huayra existe la iniciativa de la comunidad de software libre Tuquito, con sendas versiones para las computadoras de las iniciativas OLPC y Conectar Igualdad .

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Soldier talks about his new arms after transplant

BALTIMORE (AP) — A soldier who lost all four limbs in an Iraq roadside bombing has two new arms following a double transplant at Johns Hopkins Hospital.

Twenty-six-year-old Brendan Marrocco along with the surgeons who treated him will be at the Baltimore hospital on Tuesday to discuss the new limbs.

The transplants are only the seventh double-hand or double-arm transplant ever conducted in the United States.

The infantryman was injured by a roadside bomb in 2009. The New York City man also received bone marrow from the same dead donor. The approach is aimed at helping his body accept the new arms with minimal medication to prevent rejection.

The military is sponsoring operations like these to help wounded troops. About 300 have lost arms or hands in the wars.

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