বৃহস্পতিবার, ১৬ মে, ২০১৩

Making frequency-hopping radios practical

May 15, 2013 ? New hardware could lead to wireless devices that identify and exploit unused transmission frequencies, using radio spectrum much more efficiently.

The way in which radio spectrum is currently allocated to different wireless technologies can lead to gross inefficiencies. In some regions, for instance, the frequencies used by cellphones can be desperately congested, while large swaths of the broadcast-television spectrum stand idle.

One solution to that problem is the 15-year-old idea of "cognitive radio," in which wireless devices would scan their environments for vacant frequencies and use these for transmissions. Different proposals for cognitive radio place different emphases on hardware and software, but the chief component of many hardware approaches is a bank of filters that can isolate any frequency in a wide band.

Researchers at MIT's Microsystems Technology Laboratory (MTL) have developed a new method for manufacturing such filters that should improve their performance while enabling 14 times as many of them to be crammed on a single chip. That's a vital consideration in handheld devices where space is tight. But just as important, the new method uses techniques already common in the production of signal-processing chips, so it should be easy for manufacturers to adopt.

There are two main approaches to hardware-based radio-signal filtration: one is to perform the filtration electronically; the other is to convert the radio signal to an acoustic signal -- a physical vibration -- and then convert it back to an electrical signal. In work to be presented in June at the International Conference on Solid-State Sensors, Actuators and Microsystems, Dana Weinstein, the Steve and Renee Finn Career Development Assistant Professor of Electrical Engineering and Computer Science, and Laura Popa, a graduate student in physics, adopted the second approach.

Resonant ideas

Both types of filtration use devices called resonators, and acoustic resonators have a couple of clear advantages over electronic ones. One is that their filtration is more precise.

"If I pluck a guitar string -- that's the easiest resonator to think of -- it's going to resonate at some frequency, and it's going to die down due to losses," Weinstein explains. "That loss is related to, basically, energy leaked away from that resonance mode into all other frequencies. Less loss means better frequency selectivity, and mechanical acoustic resonators have less loss than electrical resonators."

Acoustic resonators' other advantage is that, in principle, they can be packed more densely than electrical-filtration circuits. "Acoustic wavelengths are much smaller than electromagnetic wavelengths," Weinstein says. "So for a given frequency, my mechanical resonator is going to be much smaller."

But in practice, the number of acoustic resonators in a filtration bank has been limited. The heart of any device that converts electrical signals to mechanical vibrations, or vice versa, is a capacitor, which can be thought of as two parallel metal plates separated by a small distance.

"The capacitors change the impedance" -- a measure of the ease with which a wave propagates -- "that the antenna sees, so you may have unwanted reflections back into the antenna," Weinstein says. "Each capacitor from each filter is going to affect the antenna, and that's no good. It means I can only have so many filters, and therefore so many frequencies that I can separate my signal into."

Another problem with acoustic resonators is that turning them on or off -- a necessary step in the isolation of a particular transmission frequency -- requires giving each resonator its own electrical switch. Traditionally, an incoming radio-frequency signal has had to pass through that switch before reaching the resonator, suffering some loss of quality in the process.

Switching channels

Weinstein and Popa solve both these problems at a stroke. Moreover, they do it by adapting a technology already common in wireless devices: a gallium nitride transistor.

Almost all commercial transistors use semiconductors: materials, like gallium nitride, that can be switched between a conductive and a nonconductive state by the application of a voltage. In Weinstein and Popa's new resonator, the lower "plate" of the capacitor is in fact a gallium nitride channel in its conductive state.

Switching that channel to its nonconductive state is like removing the lower plate of the capacitor, which drastically reduces the capacitors' effect on the quality of the radio signal. In experiments, the MTL researchers found that their resonators had only one-fourteenth the "capacitive load" of conventional resonators. "The radio can now afford to have 14 times as many filters attached to the antenna," Weinstein says, "so we can span more frequencies."

Switching the channel to its nonconductive state also turns the resonator off, so the researchers' new design requires no additional switch in the path of the incoming signal, improving signal quality.

Finally, the new resonator uses only materials already found in the gallium arsenide transistors common in wireless devices, so mass-producing it should require no major modifications of existing manufacturing processes.

Commercial adoption of cognitive radio has been slow for a number of reasons. "Part of it is being able to get the frequency-agile components and do it in a cost-effective manner," says Thomas Kazior, a principal engineering fellow at Raytheon. "Plus the size constraint: Filters tend to be big to begin with, and banks of tunable filters just make things even bigger."

The MTL researchers' work could help with both problems, Kazior says. "We're talking about making filters that are directly integrated onto, say, a receiver chip, because the little resonator devices are literally the size of a transistor," he says. "These are all on a tiny scale."

"They can help with the cost problem because these resonator-type structures almost come for free," Kazior adds. "Building them is part of the semiconductor fabrication process, using pretty much the existing fabrication steps that you're using to build the transistor and the rest of the circuits. You just may need to add one, or two at the most, additional steps -- out of 100 or more steps."

Source: http://feeds.sciencedaily.com/~r/sciencedaily/matter_energy/technology/~3/MGM2ZhYQt0Y/130515113914.htm

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ABC adds 14 new series for next season

NEW YORK (AP) ? ABC says it is adding 14 new shows to its lineup next season, including a spinoff of its fairytale drama "Once Upon a Time" and an action-adventure series drawn from the Marvel Comics world.

The network also said it's going to combine the two nights of "Dancing with the Stars" into one next season, airing a two-hour episode on Monday nights.

ABC joined other broadcast networks in presenting their 2013-2014 schedules to advertisers in New York.

"Marvel's Agents of S.H.I.E.L.D.," from hit-maker Joss Whedon, features Clark Gregg reprinting his role as Agent Coulson from Marvel's feature films.

Other new shows the network is adding to its schedule next season include "Super Fun Night," written by and starring "Bridesmaids" actress Rebel Wilson, and a Texas Rangers drama called "Killer Women."

Source: http://news.yahoo.com/abc-adds-14-series-next-season-160018766.html

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Source: http://rss.msnbc.msn.com/id/38244200/device/rss/rss.xml

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Google Play Music All Access Hands-On: All You Want (Minus Friends)

Today at its I/O developer's conference, Google launched Google Play All Access, its long-anticipated subscription music service. I just spent some time exploring the on-demand catalog as well as its radio and music discovery features. The service's UI is impressively fast and fluid. Indeed, it's minimal in all the right ways. If only it wasn't so lonely in there.

It's an Add-On to Google Play Music

All Access is an add-on to the Google Music storage locker that has existed since the end of 2011. That means that you can upload the music from your computer and then complete your collection from Google Play's enormous catalog of music.

It costs the same as Spotify, Rdio, et al. Once its introductory $8 promo-pricing is gone, All Access will cost $10 per month for the entire on-demand catalog, radio, and use on mobile devices. There are no tiered plans. It's the whole shebang or nothing.


The Web UI Is Fast and Intuitive

Navigating the catalog and the app's different features couldn't be easier. The design is simple but at the same time packed with functionality. When you hover over a rectangular icon for an artist or album you're immediately presented with graphics to play the music or the familiar Google "..." button that reveals a menu with more options.

The whole interface is refreshingly intuitive. You never hit a dead-end when you're moving about different sections of the service. Every time you want the name of an artist or an album or something to be clickable, it is.

The detail pages albums are really nice example of the myriad ways All Access makes your life easier. Besides a little info about the artist, there are obvious buttons that let you launch radio based on that album or to add it to your library.


The new Google Play Music App for Android is slick too

Same deal as the browser version. No dead ends. Swiping songs you dont want to listen to out of the play queue is very satisfying.


I love that "Share YouTube Video" is an option

YouTube videos are actually my de facto vector for sharing music with friends on Facebook and Twitter. If you share a Spotify link?or a link from any walled in garden?it inevitably means that someone won't be able to enjoy it.

Google built that behavior into All Access. Instead of having to go search for a YouTube video when I want to share something, I can just click "Share YouTube Video" and a pop up will present you with links for few versions (if they're available). It's easy, and it doesn't require your friends having a Google+ account to enjoy.

I don't love that the service only gets social with Google+

Then again, All Access doesn't have very good social skills. Facebook? Nope! Twitter? Nope! A real-time feed of what all of your friends are listening to? Nopenopenope!

If you'd like, though, you can choose share on Google+ because of course you can share on Google+. It feels awfully lonesome in there.


Listen Now is a convenient way to just put something on

Part of the problem with expansive streaming music services is that sometimes it's hard to figure out what jams your want to bust. The "Listen Now" tab is Google's answer to this problem. It's designed to provide you easy access to the radio stations and artists you like?as well as those it thinks you might like based on your activity. The straightforward tile design makes it simple enough to just impulsively click something and be done with it.


Radio is solid but unremarkable

This is the oldest trick in Pandora's box: New Order is your favorite band? "Age of Consent" is your favorite song? Type it in and you'll get a playlist. The playlists I got were great on some cursory inspection. Plenty of variety and even hints of robotic taste. It's nice that you can remove songs from your radio queue if you want.

Again, it's the UI that sets radio apart from competitors. There's a lot packed into a simple interface.


Should you ditch Spotify or Rdio?

Not yet. Take advantage of the free trial first. Google Play Music All Access has amongst the smoothest designs we've seen for something with so much horsepower. Unfortunately, it doesn't come with Spotify's great social integration baked-in?and the social integration it does have is half-baked.

Source: http://gizmodo.com/google-play-music-all-access-hands-on-all-you-want-mi-506844196

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Israel minister criticizes Russia over Syria arms

JERUSALEM (AP) ? An Israeli Cabinet minister is accusing Russia of destabilizing the Middle East by selling weapons to Syrian President Bashar Assad's regime.

Monday's remarks by Tourism Minister Uzi Landau are likely to raise tensions with Russia on the eve of Prime Minister Benjamin Netanyahu's visit to Moscow.

Netanyahu is expected to press President Vladimir Putin to halt the arms sales to Assad's government.

Russia has sided with Assad in Syria's civil war, sending him weapons and shielding him against Western attempts to impose international sanctions.

Israel is concerned advanced Russian weapons could fall into the hands of Lebanon's Hezbollah group, another Assad ally.

Landau says the Russian arms supplies "promote instability in the Middle East" and that "anyone who provides weaponry to terror organizations is siding with terror."

Source: http://news.yahoo.com/israel-minister-criticizes-russia-over-syria-arms-104032971.html

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Massage therapy shown to improve stress response in preterm infants

May 14, 2013 ? It seems that even for the smallest of people, a gentle massage may be beneficial. Newborn intensive care units (NICUs) are stressful environments for preterm infants; mechanical ventilation, medical procedures, caregiving activities and maternal separation create these stressful conditions.

Born under-developed, preemies have an immature autonomic nervous system (ANS), which controls stress response and recovery. For a preemie, even a diaper change is stressful and the immature ANS over reacts to these stressors. Since preterm infants can't process stressors appropriately, interventions are needed to enhance ANS function and maturity.

Massage therapy may reduce stress in preterm infants by promoting ANS development. A study published recently in Early Human Development, conducted by University of Louisville School of Nursing researcher Sandra Smith, PhD, and her team at the University of Utah, found massage therapy that involved moderate pressure and stroking of the soft tissues followed by flexing and extending the joints of the arms and legs increased heart rate variability (HRV) in male, but not in female preterm infants.

HRV is a measure of ANS function and development. Infants who are born at term gestation demonstrate increased HRV, but preemies typically show decreased HRV and an inability to appropriately respond to stressors. Massaged male preterm infants demonstrated increased HRV similar to term infants, which supports their ability to correctly respond to stressors.

Researchers measured HRV during periods of sleep and caregiving immediately after massage therapy at the end of the second week of study in 21 medically stable male and female preterm infants. There was no difference in HRV between female preterm infants that received massage and those that did not. HRV increased weekly in the four male preterm infants that received massage therapy but did not increase in the male infants that did not receive massages. This finding suggests that massage enhanced development of the ANS in male preterm infants and may improve preterm infant response to stressful events.

"We were surprised to learn the differences in the impact of massage therapy on preterm boys and girls," Smith said. "Boys who received massage therapy demonstrated increased heart rate variability, but the therapy did not seem to affect HRV in girls -- perhaps there are hormonal reasons for this difference."

Smith said future research is needed with a larger sample of preterm infants to understand how massage therapy affects ANS development, and to determine the mechanisms by which massage therapy promotes ANS function in preterm infants.

Source: http://feeds.sciencedaily.com/~r/sciencedaily/~3/WLmlYRksmMs/130514190641.htm

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মঙ্গলবার, ১৪ মে, ২০১৩

Sentences continue in Minn. Somali terror case

MINNEAPOLIS (AP) ? Two men who left Minnesota to join the terrorist group al-Shabab in Somalia were sentenced to three years in federal prison Tuesday, getting reduced sentences for their cooperation with the government's investigation into what has been called one of the largest efforts to recruit U.S. fighters into a foreign terror group.

Abdifatah Yusuf Isse and Salah Osman Ahmed both traveled to Somalia in 2007 and spent about a week in an al-Shabab training camp. They found a way to leave the camp once they learned what al-Shabab was all about.

They each pleaded guilty in 2009 to one count of providing material support to a terrorist group. They each faced a maximum of 15 years in prison. But prosecutors asked for sentences of around six to seven years because both cooperated with the investigation into recruiting and financing for al-Shabab.

U.S. District Judge Michael Davis gave the two men three years apiece, and they're expected to get credit for time served.

Later Tuesday, Davis handed down a 12-year sentence to Omer Abdi Mohamed, who has been characterized as a recruiter for al-Shabab in the U.S. He pleaded guilty in 2011 to one count of conspiracy to provide material support to terrorists. He also faced a maximum of 15 years in prison but prosecutors asked for less time because of his cooperation.

Unlike several other defendants in the case, Mohamed was not accused of traveling to Somalia to fight for al-Shabab, though he admitted to helping some Minnesota men get plane tickets to Somalia. During last year's trial of another defendant, witnesses said Mohamed used his knowledge of the Quran to convince young men that they had a duty to fight.

His attorney denied that he played any role in recruiting. But after that trial, Mohamed was re-arrested when the court learned he was working at a school. At the time, Davis called him "a danger to the community."

An Ohio man who admitted that he helped raise money so others could travel from Minnesota to Somalia was also sentenced Tuesday.

Ahmed Hussein Mahamud received three years in prison. He pleaded guilty in 2012 to conspiracy to provide material support to a foreign terrorist organization. He lived in Eden Prairie until 2011, when he moved to Ohio.

Three more people face sentencing later this week in this case and a case on terror financing.

Davis handed down two sentences in the long-running case on Monday. A man who authorities say played a key role in funneling young men from Minnesota to al-Shabab got 20 years in prison, while a foot soldier for al-Shabab, who participated in an ambush on Ethiopian troops, got 10 years.

"I'm going to take a chance on you," Davis told Isse when granting him a lesser sentence.

He pointed to Isse's decision to leave the al-Shabab training camp: "You devised a scheme to get away. That told me a lot about you. ... If you had been involved in the ambush, you'd be doing a lot of time."

Davis did not explain the 12-year sentence he handed down to Mohamed, who asked him for mercy and said he never would want to harm the U.S.

"I made a terrible, a wrong," Mohamed told the judge. "I regret it."

The courtroom was packed with dozens of his supporters, while others had to wait downstairs. Defense attorney Peter Wold told the judge about 200 Somali community members had written letters to the court on his behalf, calling him respectful, kind and helpful.

"I have a very strong community that knows my heart," Mohamed said.

Authorities say that more than 20 young men left Minnesota to join al-Shabab starting in 2007, when small groups of local Somalis began holding secret meetings to talk about returning to their homeland to wage jihad against Ethiopians. The Ethiopian army was brought into Somalia in 2006 by its weak U.N.-backed government, but the troops were viewed by many Somalis as invaders.

Davis, who has overseen these cases for years, said he still struggles to understand what would make young men from good families, who came to Minnesota as refugees, choose to return to violence.

"We have to figure out what's going on and try to make sure this never happens again," he said.

___

Follow Amy Forliti on Twitter: http://twitter.com/amyforliti .

Source: http://news.yahoo.com/sentences-continue-minn-somali-terror-case-224631987.html

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'Practicing Sustainability' chosen for a silver Nautilus Book Award

'Practicing Sustainability' chosen for a silver Nautilus Book Award [ Back to EurekAlert! ] Public release date: 14-May-2013
[ | E-mail | Share Share ]

Contact: Alexander Brown
alexander.brown@springer.com
917-710-8274
Springer Science+Business Media

Title recognized as 1 of the award program's 'Better Books for a Better World'

Practicing Sustainability, published by Springer, has been selected as a silver-award winner of the 2013 Nautilus Book Awards, in the "Green Living / Sustainability" category. The award program honors and promotes books that "inspire and connect our lives as individuals, communities and global citizens." Previous winners of the Nautilus Awards include His Holiness the Dalai Lama, Archbishop Desmond Tutu, Deepak Chopra and Barbara Kingsolver.

Among the wealth of perspectives offered in the book, some notable contributions include a foreword by Nobel laureate Michael Spence, as well as editorials by Robert Rubin, Klaus Schwab and George Whitesides, and an afterword by M.S. Swaminathan.

Human civilization has faced many threats in its history, but perhaps none so serious as the changes the planet is undergoing as a result of our way of life in the industrialized world. Society is now taking the first tentative steps on a great quest to find a sustainable way forward. Practicing Sustainability seeks to define the concept of sustainability and provide key insights into how to put it into practice.

Practitioners and thinkers from a wide spectrum of backgrounds and professions, from chefs, musicians, artists and poets, to scientific leaders, entrepreneurs and policy makers, deepen our understanding of the role that each of us can play in understanding and promoting sustainability. Each contributor addresses what sustainability means, what is most appealing about the concept and what they would like to change to improve its perception and practice. What emerges from this collection of brief essays is a wide variety of views that confirm an important insight: sustainability is pursued in different ways not only due to different interpretations, but also because of varying incentives, trade-offs and altruistic motives.

Practicing and achieving sustainability starts with a willingness to look critically at the concept, which is precisely what this books sets out to do. As a stepping stone to the future, Practicing Sustainability stokes meaningful discussion on the issue and helps illuminate just how difficult it can be to pin down a plan for sustainable development.

If there is one message, it is that achieving sustainability will require more than what we have been doing. While technology has solved many problems of the past, finding and practicing a sustainable way forward also demands that pragmatism and common sense have a place at the table. For more information or to purchase the book, visit the book's webpage.

###

Madhavan, G. et al (Eds.)
Practicing Sustainability
2013, XXXVI, 244 p. 15 illus. in color
Hardcover 42.75 | 22.95 | $39.95
ISBN 978-1-4614-4348-3


[ Back to EurekAlert! ] [ | E-mail | Share Share ]

?


AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert! system.


'Practicing Sustainability' chosen for a silver Nautilus Book Award [ Back to EurekAlert! ] Public release date: 14-May-2013
[ | E-mail | Share Share ]

Contact: Alexander Brown
alexander.brown@springer.com
917-710-8274
Springer Science+Business Media

Title recognized as 1 of the award program's 'Better Books for a Better World'

Practicing Sustainability, published by Springer, has been selected as a silver-award winner of the 2013 Nautilus Book Awards, in the "Green Living / Sustainability" category. The award program honors and promotes books that "inspire and connect our lives as individuals, communities and global citizens." Previous winners of the Nautilus Awards include His Holiness the Dalai Lama, Archbishop Desmond Tutu, Deepak Chopra and Barbara Kingsolver.

Among the wealth of perspectives offered in the book, some notable contributions include a foreword by Nobel laureate Michael Spence, as well as editorials by Robert Rubin, Klaus Schwab and George Whitesides, and an afterword by M.S. Swaminathan.

Human civilization has faced many threats in its history, but perhaps none so serious as the changes the planet is undergoing as a result of our way of life in the industrialized world. Society is now taking the first tentative steps on a great quest to find a sustainable way forward. Practicing Sustainability seeks to define the concept of sustainability and provide key insights into how to put it into practice.

Practitioners and thinkers from a wide spectrum of backgrounds and professions, from chefs, musicians, artists and poets, to scientific leaders, entrepreneurs and policy makers, deepen our understanding of the role that each of us can play in understanding and promoting sustainability. Each contributor addresses what sustainability means, what is most appealing about the concept and what they would like to change to improve its perception and practice. What emerges from this collection of brief essays is a wide variety of views that confirm an important insight: sustainability is pursued in different ways not only due to different interpretations, but also because of varying incentives, trade-offs and altruistic motives.

Practicing and achieving sustainability starts with a willingness to look critically at the concept, which is precisely what this books sets out to do. As a stepping stone to the future, Practicing Sustainability stokes meaningful discussion on the issue and helps illuminate just how difficult it can be to pin down a plan for sustainable development.

If there is one message, it is that achieving sustainability will require more than what we have been doing. While technology has solved many problems of the past, finding and practicing a sustainable way forward also demands that pragmatism and common sense have a place at the table. For more information or to purchase the book, visit the book's webpage.

###

Madhavan, G. et al (Eds.)
Practicing Sustainability
2013, XXXVI, 244 p. 15 illus. in color
Hardcover 42.75 | 22.95 | $39.95
ISBN 978-1-4614-4348-3


[ Back to EurekAlert! ] [ | E-mail | Share Share ]

?


AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert! system.


Source: http://www.eurekalert.org/pub_releases/2013-05/ssm-sc051413.php

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The Unexpected Factor Making Your Allergy Worse : Easy Health ...

the-unexpected-factor-making-your-allergy-worse_300For many of us, warmer weather brings on more allergies. As plants release pollen into the spring air, noses start to run, eyes itch and rashes may suddenly appear. But researchers have found a factor unrelated to what you inhale that can make your allergies worse.

The problem, according to scientists at Ohio State, is stress.

In a study of more than two dozen people suffering from seasonal allergies and hay fever, the researchers found that stress along with anxiety made allergic reactions more intense. In addition, they found that stress on a particular day persisted in causing stronger allergic reactions the following day.

?People may be setting themselves up to have more persistent problems by being stressed and anxious when allergy attacks begin,? says researcher Jan Kiecolt-Glaser.

?The results of this study should alert practitioners and patients alike to the adverse effects of stress on allergic reactions in the nose, chest, skin and other organs that may seemingly resolve within a few minutes to hours after starting, but may reappear the nest day when least expected,? says co-investigator Gailen Marshall.

The researchers estimate that Americans pay $2.3 billion for allergy medications each year and $1.1 billion for doctor visits to treat allergy attacks. Those amounts don?t include approximately 3.5 million workdays lost as well.

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Filed Under: Allergies ? Alternative Medicine ? Easy Health Options News

Source: http://easyhealthoptions.com/alternative-medicine/the-unexpected-factor-making-your-allergy-worse/

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Fox schedule includes '24' return

In this Saturday, Oct. 1, 2011 photo, Seth MacFarlane poses for a portrait in Los Angeles. Fox, facing the ebbing ratings power of "American Idol," is betting big on its first miniseries and shows from heavyweight producers MacFarlane and J.J. Abrams to invigorate its schedule. The network is making its largest original-programming investment yet with a crop of 11 new series along with the miniseries from filmmaker M. Night Shyamalan for the 2013-14 season, Kevin Reilly, Fox Entertainment chairman, said Monday, May 13, 2013. That's more than double the five series it announced last year. (AP Photo/Matt Sayles)

In this Saturday, Oct. 1, 2011 photo, Seth MacFarlane poses for a portrait in Los Angeles. Fox, facing the ebbing ratings power of "American Idol," is betting big on its first miniseries and shows from heavyweight producers MacFarlane and J.J. Abrams to invigorate its schedule. The network is making its largest original-programming investment yet with a crop of 11 new series along with the miniseries from filmmaker M. Night Shyamalan for the 2013-14 season, Kevin Reilly, Fox Entertainment chairman, said Monday, May 13, 2013. That's more than double the five series it announced last year. (AP Photo/Matt Sayles)

(AP) ? Jack Bauer is coming back.

Fox executives said Monday that its drama "24" is returning next May for a limited run that will stretch into the summer. The adventure series with Kiefer Sutherland starring as Jack Bauer ended its original run in 2010.

Fox programming chief Kevin Reilly said creators had been thinking about doing a feature film with the original cast. But when Fox announced it was interested in doing a big event miniseries, they realized it was the perfect format.

Reilly made the announcement as part of Fox's unveiling of a new schedule for the upcoming season.

THIS IS A BREAKING NEWS UPDATE. Check back soon for further information. AP's earlier story is below.

Associated Press

Source: http://hosted2.ap.org/APDEFAULT/4e67281c3f754d0696fbfdee0f3f1469/Article_2013-05-13-US-TV-Fox-Schedule/id-f264364a95504ab98504e23b0e57afdb

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Coronavirus epidemic awaits, not certain to be severe - discoverer

By Alexander Dziadosz

CAIRO (Reuters) - The doctor who discovered a new SARS-like virus says it will probably trigger an epidemic at some point, but not necessarily in its current virulent form.

The new strain of coronavirus (nCoV) that Ali Mohamed Zaki found last year, related to one that caused the outbreak of Severe Acute Respiratory Syndrome (SARS) in 2003, has killed at least 18 people in the Middle East and Europe.

On Sunday, the World Health Organization said it seemed likely the new virus, which can cause coughing, fever and pneumonia, could be passed between humans, but only after prolonged, close contact.

Zaki, an Egyptian virologist who identified the new virus last June in a patient at the hospital where he was working in Jeddah, Saudi Arabia, noted in a telephone interview on Monday that no one else at that hospital had been infected at the time.

More recently, there has been a cluster of cases in a hospital in Hofuf in Saudi Arabia's Eastern province, as well as a case of transmission between two patients sharing a hospital room in France.

Zaki, now working at Ain Shams university in Cairo, said the virus was probably mutating. "From what is going on, it seems it is going step-by-step to become more easily transmitted," he told Reuters.

But he said doctors and authorities were in a better position to deal with an outbreak than they had been with SARS because the new virus had been identified relatively early:

"Now we have the virus before the epidemic happened - and I think it will happen - and we have tools to diagnose it."

LESSONS OF SARS

SARS emerged in Asia and took several months to mutate into a highly contagious form, eventually killing 775 people as it swept across the world in 2003 before being contained by isolation measures and a broad public health campaign.

Zaki noted that it was unclear whether the new virus, which has been fatal in more than half of the 32 confirmed severe cases so far, would still remain as lethal if it became more contagious.

But he said authorities should prepare for the worst and apply standard infection controls such as isolation, just as they did with SARS, noting that Saudi Arabia has a large population of expatriate workers who could spread the disease around the world.

Furthermore, Saudi Arabia draws millions of pilgrims to the Muslim holy cities of Mecca and Medina for the annual haj pilgrimage, which next takes place in October.

"The possibility of transmitting the virus outside Saudi Arabia? I think, yes, there is a great possibility because many people are working in Saudi Arabia, many people are visiting Saudi Arabia for religious tourism," Zaki said.

Michael Baker, of the department of public health at the University of Otago in Wellington, New Zealand, agreed that the new virus could turn into a serious threat.

"The arrival of SARS in 2003 reminded us that entirely new human infections can emerge without warning and develop into global epidemics that may be difficult to control," he said in an emailed comment.

(Additional reporting by Mohamed Zaki in Cairo and Kate Kelland in London; Editing by Kevin Liffey)

Source: http://news.yahoo.com/coronavirus-epidemic-awaits-not-certain-severe-discoverer-152145049.html

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Sun unleashes strongest solar flare of 2013 so far

LOS ANGELES (AP) ? The sun has fired off a massive flare, the strongest solar eruption this year.

The powerful flare occurred Sunday and erupted on the side of the sun that was not facing Earth. While the planet was not hit with radiation, space weather forecasters say the solar blast briefly disrupted high-frequency radio signals.

Solar outbursts that are directed at Earth can affect communications systems and power grids and also produce colorful auroras.

NASA says radiation from the latest flare may stream toward two of its spacecraft, including the Spitzer Space Telescope. Engineers have the option to put them in safe mode to protect instruments from getting fried.

The side of the sun where Sunday's eruption occurred will rotate into Earth's view soon, allowing scientists to study the active region.

Source: http://news.yahoo.com/sun-unleashes-strongest-solar-flare-2013-far-165851597.html

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Iterate 46: Beck, Ohms, Urbanick, and Press

Iterate 46: Beck, Ohms, Urbanick, and Press

Jordan Beck, Jay Ohms, and Chad Urbanick of TwentyFive Squares join Marc, Seth, Rene and Andrew Martonik of Android Central to talk about their outstanding Android RSS reader, Press. Also, life after Google Reader, platform exclusivity, and more!

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Yell at us on Twitter/ADN via the above accounts. Loudly.

    


Source: http://feedproxy.google.com/~r/TheIphoneBlog/~3/ACo_RiWmqt4/story01.htm

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Facebook owns up to Home flaws, vows to push out quick fixes

(Adds Mourinho quotes) MADRID, May 11 (Reuters) - Real Madrid central defender Raphael Varane suffered a knee injury in Saturday's 1-1 La Liga draw at Espanyol and looks set to miss the rest of the season. The 20-year-old France international, who has burst into Real's team this season, fell awkwardly after a tackle in the 19th minute and had to be substituted. "His meniscus is affected. We will see what the scans say in the morning," club director Emilio Butragueno told Canal Plus television. ...

Source: http://news.yahoo.com/facebook-owns-home-flaws-vows-push-quick-fixes-024537127.html

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Massa sets fastest time in final practice in Spain

BARCELONA, Spain (AP) ? Ferrari driver Felipe Massa was fastest in the third and final practice session for the Spanish Grand Prix on Saturday, edging Lotus' Kimi Raikkonen by .006 seconds.

Times started to drop after the medium tires came out late in the session, and Massa took advantage to clock a fastest lap of 1 minute, 21.901 seconds in mostly sunny conditions.

Red Bull driver Mark Webber was third quickest, just in front of Romain Grosjean for Lotus. Three-time Formula One defending champion Sebastian Vettel was fifth for Red Bull, one place ahead of two-time F1 winner Fernando Alonso of Ferrari.

McLaren's struggles show no signs of ending, however, with Jenson Button and teammate Sergio Perez outside of the top 10 places for the second straight day.

The top six drivers were separated by only .353 seconds, suggesting qualifying later Saturday will be close. The race is Sunday.

Massa has started every race in the top five this season, but Ferrari is looking for its drivers to find extra speed in qualifying following three frustrating seasons to increase the pressure on Red Bull.

The closest Ferrari has been to pole position this season was when Massa qualified second at the Malaysian GP in March. Teammate Fernando Alonso has started the last three races from third spot on the grid, and he will hoping for a higher position in front of his home fans on the Circuit de Catalunya.

Raikkonen will be looking for a third consecutive podium finish after opening the season by winning in Australia despite starting from seventh spot.

Grosjean has had a frustrating start to the campaign, although his form picked up with a third-place in Bahrain.

Mercedes has been fast but lacking durability so far this season, but Lewis Hamilton and Nico Rosberg stayed on longer runs than any other driver in completing 50 laps between them.

Having set the early pace on hard tires, Vettel will need to pick up the pace in the afternoon to earn a third pole of the season after starting top of the grid in the first two races. The German has won twice so far this campaign.

Following on from Friday's two underwhelming practice sessions, McLaren's prospects still look gloomy. Button was 1.25 seconds off the pace in 12th place on Saturday, while Perez was 1.472 back in 14th.

Source: http://news.yahoo.com/massa-sets-fastest-time-final-practice-spain-110101844.html

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It's off to the races again - The Daily News of Newburyport

Big Freddy was folding his morning newspaper when I joined him for coffee.

?What?s new?? I asked as I settled into my side of the booth.

?Orb won one,? Freddy said.

?Orb who?? I asked.

?Orb ? the horse that won the Kentucky Derby in a mudslide,? Freddy said.

?The world?s coming apart at the seams, and you come up with a horse winning a race as being what?s new?? I asked.

?You asked for it,? Freddy said. ?This horse winning this race for Shug McGaughey was new. Shug?s spent a lifetime trying to win one. Never has. Has now.?

?Shug was the jockey?? I asked.

?Shug was the trainer, and while I?m at it, Joel Rosario was the jockey and the track was muddy,? Freddy said. ?Orb came from way back wearing a mud pack and all Rosario had to do was hang on and steer.?

?Enough already, I wasn?t thinking about horse races,? I said.

?You should,? Freddy said. ?Cleans the mind of half the world from going to hell in a hack. The Derby is special because it makes news once a year. You can depend on it. Let us be thankful. All we?ve been getting is the bombers this, and the bombers that, and we needed a break.?

?Well, bombing the Boston Marathon was once in a lifetime of news,? I said.

?It better be,? Freddy said. ?We don?t want to be hearing anything like that again. But the Derby? You can bet on that.?

?For those who like horse racing,? I said.

?And we are legion,? Freddy said. ?But fans pick and choose. Sports are where we escape to whatever it is we need to escape from. Some have seasons. Horse racing goes on somewhere all the time. ?

?So do people racing, but there?s only one Boston Marathon a year, and if you?re trying to make a point about something I?m at a loss,? I said.

?It?s the side stories and back stories that give life to sporting events,? Freddy said. ?That will go on for nobody knows how long because there are wheels within wheels that become part of history. Bad news, good news ? histories are full of footnotes.?

?So are political campaigns,? I said.

?And every one of them is a learning experience,? Freddy said. ?Win or lose, sports, politics ? the beats go on. Horses can pull up lame. Politicians win or lose because of foot in mouth disease. It?s bad news for losers, but there?s always tomorrow.?

?So, I take it you picked the winner last Saturday,? I said.

?Sometimes, I pick a winner,? Freddy said, ?but win or lose, the thing is the Derby?s an all day event and everybody gets a run for their money. That?s really the upside of all of sports - fans getting a run for their money.?

?Well the downside of the Boston Marathon certainly overwhelmed the upside,? I said.

?Wrong,? Freddy said. ?Running in a foot race is personal. Marathoners run against their personal best times. There are always downsides, but I agree, there?s been nothing like the one in Boston. There are marathons everywhere, but the immediate response and what followed makes Boston?s the world classic.

?You can bet on this. Next year?s will make for a different kind of history.?

---

Bill Plante is a Newbury resident and a staff columnist.

Source: http://www.newburyportnews.com/opinion/x326078673/Its-off-to-the-races-again

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American Idol Showdown: Who Will Win?

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শনিবার, ২০ এপ্রিল, ২০১৩

Engadget Podcast 340 - 04.19.13

Engadget Podcast 340 - 04.19.13

We're only 60 weeks away from the big 400th podcast, and the excitement is starting to build. So we guess that's why they've demolished the old studio? This week they've moved our hosts into temporary residence while -- we assume -- they build a new, deluxe suite in preparation. Right?

Hosts: Tim Stevens, Peter Rojas, Brian Heater

Producers: James Trew, Joe Pollicino

Hear the podcast:

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Source: http://www.engadget.com/2013/04/19/engadget-podcast-340-04-19-13/

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College campus evacuated after link to Marathon bombing found

The UMass Dartmouth campus is being evacuated after one of the suspected Boston Marathon bombers has been identified as a student.

"Please leave campus calmly as soon as possible," UMass Dartmouth tweeted.

Dzhokhar A. Tsarnaev, 19, is registered there.?

?

Source: http://www.wcvb.com/news/local/metro/College-campus-evacuated-after-link-to-Marathon-bombing-found/-/11971628/19815316/-/e04f7s/-/index.html?absolute=true

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91% Jurassic Park: An IMAX 3D Experience

All Critics (94) | Top Critics (24) | Fresh (94) | Rotten (8) | DVD (38)

The enthralling man-vs.-nature parable based on the late Michael Crichton's best-selling novel hasn't aged one bit.

The 3-D process adds not just dimension but depth - a technological extension of cinematographer Gregg Toland's deep-focus innovations in The Grapes of Wrath and Citizen Kane. The change in perspective creates greater intensity.

I'm a fan of this movie. It is thrilling, and the 3-D treatment is a nice enhancement.

This movie doesn't just stand the test of time, it transcends it.

"Jurassic Park" remains an absolute thrill from a Spielberg in top form: Funny, scary, fast-moving and full of just-right details.

"Jurassic Park" was impressive in 1993. Twenty years later, it's flawless.

Sentiment is explained by science as the family impulse that motivates so many Steven Spielberg stories is revealed to be an evolutionary imperative in this near-perfect action-adventure.

[Looks] better not only than effects-driven movies of the same period, but better, frankly, than half of what gets released nowadays.

Kids who love dinosaurs will love it. And who doesn't?

confirms both Spielberg's mastery of cinematic thrills and the comparatively empty bombast of today's summer tentpole movies, even the better ones.

Jurassic Park shows us a director in transition, and the film captures his transformation in its own kind of cinematic amber.

[The] 3D [conversion] provides the definitive version of this classic film. Jurassic Park has been transformed with with artistry, nuance and sophistication, and it's an absolute must-see during this brief run.

The 3D effects had me nearly jumping out of my seat. Some say Hollywood is converting too many old films to 3D. But, "Jurassic Park" was the perfect choice. There's nothing more fun than sharing a seat with a snapping dinosaur.

Spielberg treats us as he does his characters, leading us into a strange land and expecting us to make it out with all our faculties intact; it's a tall order, given the heart-stopping, bloodcurdling, limbs-numbing excitement packed into the second hour.

It is as if time has passed the movie by. "Jurassic Park" remains solid entertainment, but the awe and wonder have faded.

The thrill of seeing live dinosaurs on screen is not as acute today as it was 20 years ago admittedly, but there is still some 3D awe left in the creations that roared 65 billion years ago...

The 3D isn't pushed on the audience, but it does reveal the amount of depth that Spielberg actually put into the film 20 years ago.

While it's not the most profound of Spielberg's works or the most entertaining from a popcorn perspective, it's one of the most technically flawless movies he's ever produced.

Jurassic Park 3D is like being reunited with an old friend; an old friend that wants to eat you and maul you to death, but still. A classic is reborn in glorious IMAX with a vibrantly stunning use of 3D.

If releasing the film in 3-D is the only way to get it back in theaters, then the gimmick is an acceptable addition. The 3-D is good. But when a movie is this near flawless, nothing is needed to make it better.

The 3D conversion ruins everything, like the comet that killed the dinosaurs, making Jurassic Park the rare amusement I'd prefer to revisit at home.

A beast of a movie is gifted a superfluous-but-superb rouging of the cheeks, offering fanatics something new to study while newcomers will be ruined for any future television airings.

The tasteful Jurassic Park 3D conversion injects new wonder and excitement into one of the most captivating adventure movies ever made.

There is nothing like experiencing this fabulous, larger-than-life, groundbreaking movie where it was meant to be experienced. And in 3D!

This is an immensely entertaining film, as long as you can overlook the many minor flaws that permeate its structure. (Complete Content Details for Parents also available)

Source: http://www.rottentomatoes.com/m/jurassic_park_an_imax_3d_experience_1993/

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Molecule treats leukemia by preventing cancer cell repair

Apr. 17, 2013 ? Researchers at The Jackson Laboratory have identified a molecule that prevents repair of some cancer cells, providing a potential new "genetic chemotherapy" approach to cancer treatment that could significantly reduce side effects and the development of treatment resistance compared with traditional chemotherapy.

In healthy people, white blood cells called B cells (or B lymphocytes) are a kind of sophisticated tool kit, making antibodies against pathogens or other invaders. In the process of antibody production, B cells turn on the gene known as activation-induced cytidine deaminase (AID), which acts as a sort of molecular scissors that cut the chromosomes within the B cell. This is needed to rearrange pieces of the B-cell chromosomes and produce different "flavors" of antibodies that do different jobs.

But in some cancers this process goes wrong, with AID acting out of control and creating mutations and chromosome rearrangements that make the tumor more aggressive.

Those AID-induced cancers proliferate with help from the cell-repair mechanism known as homologous recombination (HR). Researchers in the laboratory of Associate Professor Kevin Mills, Ph.D., identified a molecule called DIDS (for 4,4'-diisothiocyanatostilbene-2-2'-disulfonic acid) that blocks the DNA repair action in chronic lymphocytic leukemia (CLL), causing the cancer cells to die.

"This treatment affects every cell in the body," Mills says. "But by its mode of action it kills only tumor cells that are expressing AID, yet it is almost entirely harmless to normal, healthy cells."

The research, published in The Journal of Experimental Medicine, is the latest proof of principle for what Mills calls "genetic chemotherapy": using the mechanisms involved in genetic instability in cancer, to cause tumor cell self-destruction.

For the new paper, authors Kristin Lamont, Ph.D., a postdoctoral associate, and Muneer Hasham, Ph.D. an associate research scientist, both in the Mills laboratory, tested DIDS in normal mouse cells, mouse cancer cells, human cancer cell lines and human primary cancers. "We collected 74 different primary patient CLL samples," Lamont says, "and measured AID expression in those samples. We found that about 40 percent of them express AID, and if we treated those with DIDS in vitro, the AID-expressing ones had significantly higher levels of DNA damage and died."

Mills adds, "Demonstrating that this works on primary cancer cells moves us one step closer to eventually testing this in patients." The DIDS treatment approach, Mills adds, also addresses the issues of side effects, a major problem with standard chemotherapy.

"By its selectivity for cancer cells, DIDS reduces the issue of the really nasty side effects associated with chemotherapy treatments," Mills explains.

Moreover, the list of cancers associated with aberrant AID expression is growing, so the treatment approach could apply not only to leukemia but also a range of other cancer types.

Mills' collaborators at Memorial Sloan-Kettering Cancer Center in New York shared their expertise in DNA repair to understand the action of the DIDS molecule. "We hypothesized that the molecule would work as it did," Mills says, "but they helped us to determine exactly why and how it works."

Since the researchers submitted the paper for publication, they have developed a new and better potential treatment molecule. "One of our goals is to design an even better molecule," Mills says. "And we've done that. We now have a new molecule in that same class, that delivers significantly more potency, with just as much selectivity as the original molecule."

Cyteir Therapeutics, Inc. a startup biotechnology company founded by Mills in 2012, continues to pursue development of the new molecule for cancer therapy, while Dr. Mills and his team at Jackson will keep studying the cellular mechanisms, in the hope of finding yet more potential new cancer drugs. Cyteir Therapeutics is now ramping up the R&D efforts necessary to take the genetic chemotherapy treatment to clinical trials, possibly in 2014.

This work, which took place in The Jackson Laboratory's NCI-designated Cancer Center, was a collaboration with oncologists at Cancer Care of Maine, part of Eastern Maine Medical Care in Bangor, Maine, and the Maine Center for Cancer Medicine and Maine Medical Center Research Institute, both in Scarborough, Maine.

The Jackson Laboratory is an independent, nonprofit biomedical research institution based in Bar Harbor, Maine, with a facility in Sacramento, Calif., and a new genomic medicine institute in Farmington, Conn. It employs a total staff of more than 1,450. Its mission is to discover precise genomic solutions for disease and empower the global biomedical community in the shared quest to improve human health.

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The above story is reprinted from materials provided by Jackson Laboratory.

Note: Materials may be edited for content and length. For further information, please contact the source cited above.


Journal Reference:

  1. K. R. Lamont, M. G. Hasham, N. M. Donghia, J. Branca, M. Chavaree, B. Chase, A. Breggia, J. Hedlund, I. Emery, F. Cavallo, M. Jasin, J. Ruter, K. D. Mills. Attenuating homologous recombination stimulates an AID-induced antileukemic effect. Journal of Experimental Medicine, 2013; DOI: 10.1084/jem.20121258

Note: If no author is given, the source is cited instead.

Disclaimer: This article is not intended to provide medical advice, diagnosis or treatment. Views expressed here do not necessarily reflect those of ScienceDaily or its staff.

Source: http://feeds.sciencedaily.com/~r/sciencedaily/health_medicine/genes/~3/Ni3EwTkPLuI/130417105935.htm

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মঙ্গলবার, ১৬ এপ্রিল, ২০১৩

Chinx Drugz Stages Another Cocaine Riot With Third Mixtape

'This time I just let loose and I gave them everything,' French Montana's Coke Boys homey told Mixtape Daily.
By Rob Markman, with reporting by Ade Mangum


Chinx Drugs
Photo: MTV News

Source: http://www.mtv.com/news/articles/1705721/chinx-drugs-cocaine-riot-3-mixtape.jhtml

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Dish Network bids $25.5 billion for Sprint, goes head-to-head with Softbank

Dish Network bids $255 billion for Sprint, goes headtohead with Softbank

In the battle for Sprint's heart, Dish Network always seemed to be stuck in the "friend zone". That's not the case anymore, however, now that Dish has quietly lobbed an informal $25.5 billion offer to purchase the carrier. The Wall Street Journal is reporting that after Dish was knocked-back in its attempts to buy Clearwire, the satellite TV company scrounged together the cash to beat Softbank's multi billion dollar deal. If the bid is made formal, then Sprint's board will have to decide if Softbank's massive size and buckets of cash can be trumped by Dish's spectrum reserves, pay-TV business and ability to skip commercials in a breeze.

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Via: The Wall Street Journal

Source: Dish

Source: http://feeds.engadget.com/~r/weblogsinc/engadget/~3/erJDdKfWl78/

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