Thursday, January 31, 2013

Microsoft confirms CardDAV and CalDAV updates are coming to Windows Phone

Earlier today Microsoft announced that Google is graciously extending the Exchange ActiveSync cut-off deadline to July 31st for Windows Phone users. Microsoft was reportedly begging Google to extend the?deadline, and it appears that it paid off. This is good news in itself, but a long term solution is still needed.

Microsoft has confirmed that they are indeed working on a Windows Phone update that will include support for CardDAV and CalDAV, the new protocols that Google is using for contacts and calendar info. Unfortunately Windows 8 users won?t be getting the same good news. Microsoft says that Windows 8 users simply won?t be able to use Google accounts for Calendar after today. They will instead have to add it to their Microsoft?account?first. A real bummer.

Microsoft did not give a time frame for when the update will arrive, but as long as they beat the July 31st deadline we should be okay.

[via Windows Phone Blog]

Source: http://winsource.com/2013/01/30/microsoft-confirms-carddav-and-caldav-updates-are-coming-to-windows-phone/

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Wednesday, January 30, 2013

Donors pledge $455 million to Mali military push

ADDIS ABABA, Ethiopia (AP) ? African and Western nations on Tuesday pledged more than $450 million to fund an African-led military force to fight Islamist extremists in Mali.

Britain, meanwhile, announced that it has offered to send up to 200 military officers to help train a West African force in Mali, including up to 40 people that could be sent to Mali as part of an EU training mission of 500 personnel.

At the African Union headquarters in Ethiopia, a top official, Ramtane Lamamra, said nations had pledged $455.5 million for the United Nations-authorized African-led Support Mission in Mali, or AFISMA. The AU says AFISMA requires an initial budget of $461 million. Additional support needed for Mali's army and the West African bloc known as ECOWAS raises the overall financial need to near $960 million.

African nations like Ethiopia, Ivory Coast, Gambia and others lined up with developed countries like the United States, Japan, Germany and the U.K. to pledge funds to the military effort.

Johnnie Carson, the State Department's top Africa official, said at the African Union gathering that U.S. assistance for the Mali effort would total $96 million, pending Congressional approval. Carson said that includes $32 million previously pledged and $13 million already spent aiding military efforts.

Among other promises of assistance:

? The EU pledged 50 million euros ($67 million), while the African Union pledged $50 million.

? Germany promised $20 million and a third aircraft to help transport African troops.

? Britain said it will provide a ferry to help transport equipment and French troops and will allow allies like the U.S. to fly refueling missions from U.K. bases.

? Japan announced $120 million in aid and support to refugees, the Kyodo news agency said.

Islamist extremists have controlled much of northern Mali since last April. French forces began an operation earlier this month to dislodge them. A top U.S. State Department official warned on Monday that the military effort could take years to complete.

Germany's foreign minister, Guido Westerwelle, said in a statement that despite the necessity of the military mission "in the long-term there can only be a political solution" to Mali's problems.

Jeffrey Feltman, undersecretary-general of political affairs at the United Nations, said those bodies attending the donors conference were satisfied with the outcome and the messages that were sent.

"One was unified international support for the people of Mali in a variety of ways, because everybody talked about the need to only to be working on the military side but to keep focus as well on the humanitarian needs of Malian people," he said.

Feltman said the U.N .is working to support an estimated 370,000 Malians displaced by the fighting since last year. He said the U.N. chief Ban Ki-moon has been seeking the Security Council's authorization to provide logistical support to the African-led force. He said that after Tuesday's pledges the council might again consider what assistance it is willing to authorize.

Source: http://news.yahoo.com/donors-pledge-455-million-mali-military-push-120436407.html

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RIM changes name, unveils BlackBerry 10 in comeback bid

NEW YORK (Reuters) - Research In Motion Ltd unveiled on Wednesday the long-delayed line of smartphones it hopes will put the company on the comeback trail in a market it once dominated, but said sales of the BlackBerry 10 in the United States will not start until March.

Signaling his hopes for a fresh start for the company that pioneered on-your-hip email, Chief Executive Thorsten Heins also said RIM was abandoning the name it has used since its inception in 1985 to take on the name of its signature product.

"From this point forward, RIM becomes BlackBerry." Heins said at the New York launch. "It is one brand; it is one promise."

RIM launched its first BlackBerry back in 1999 as a way for busy executives to stay in touch with their clients and their offices, and the Canadian company quickly cornered the market for secure corporate and government email.

But its star faded as competition rose. The BlackBerry is now a far-behind also-ran in the race for market share, with a 3.4 percent global showing in the fourth quarter, down from 20 percent three years before. Its North American market share is even worse: a mere 2 percent in the fourth quarter.

RIM said the first of the new BlackBerrys will be available on Thursday in Britain, with other countries following as carriers complete their testing.

In the U.S. market, which sets trends that other countries follow, the BlackBerry Z10 touchscreen device will go on sale in March. U.S. carrier Verizon Wireless said the phone would cost $199 for a two-year contract, while Canada's Rogers Communications is quoting C$149 ($150) for certain three-year plans.

SHARES SLUMP

RIM shares initially rallied on Wednesday, but soon fell as much as 8 percent below Tuesday's close. The stock is down 90 percent from its 2008 peak as the BlackBerry has lost ground to rival devices. But in the last four months its volatile shares have more than doubled as buzz grew about the new devices.

"It was such a well-advertised launch date that people moved the stock up and then they took profits ahead of when it was going to be revealed," said Ian Nakamoto, director of research at Macdougall, Macdougall and Mactier in Toronto.

"For RIM, it's a normal stock market day. It would have been an abnormal stock market day if it had got cut in half or something."

The legal name change to BlackBerry from Research In Motion takes affect after shareholders approve the decision, but the company already plans to do business under the BlackBerry name.

"We want our employees to say, 'I work for BlackBerry.' Our customers to say, 'I own a BlackBerry.' Our shareholders to say, 'I own BlackBerry stock,'" said chief marketing officer Frank Boulben. "We want to become what I'd call a branded house versus a house of brands."

The new BlackBerry 10 phones will compete with Apple's iPhone and devices using Google's Android technology, both of which have soared above the BlackBerry in a competitive market.

The BlackBerry 10 devices boast fast browsers, new features, smart cameras and, unlike previous BlackBerry models, enter the market primed with a large application library, including services such as Skype and the popular game Angry Birds.

The new devices are sleek black numbers, one with the small "qwerty" keyboard that RIM made into its trademark, and one a pure touchscreen device that looks much like those its competitors already produce.

"QWERTY" DEVICE IN APRIL

The Q10 "qwerty" device will launch later than the Z10 touchscreen. Heins said it would hit global markets in April.

RIM picked a range of venues for its global launch parties, including Dubai's $650-a-night Armani Hotel, which occupies six floors of the Burj Khalifa, the world's tallest tower.

The New York event took place in a sprawling basketball facility on the Lower East Side of Manhattan, just north of the Manhattan Bridge. The Blackberry has been "Re-designed. Re-engineered. Re-invented," RIM said.

RIM, which is splurging on a Superbowl ad to promote its new phones, also introduced Grammy-winning singer/songwriter Alicia Keys as its global creative director.

"I was in a long-term relationship with BlackBerry, and then I started to notice some new, kind of hotter, attractive, sexier phones at the gym, and I kind of broke up with you for something that had a little more bling," Keys said at the New York launch.

"But I always missed the way you organized my life, and the way you were there for me at my job, and so I started to have two phones - I was kind of playing the field. But then ... you added a lot more features ... and now, we're exclusively dating again, and I'm very happy."

(Writing by Janet Guttsman; Editing by Frank McGurty, Lisa Von Ahn and Peter Galloway)

Source: http://news.yahoo.com/rim-starts-glitzy-blackberry-10-launch-parties-151850139--finance.html

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Deep freeze and family safety: Watch the carbon monoxide levels

What I learned from a little bird about CO home safety

By Lisa Suhay,?Guest Blogger / January 30, 2013

Carbon Monoxide can build up in a house, especially after the furnace has been turned on for winter. Make sure to have a CO detector, seen here, installed and tested regularly.

Associated Press

Enlarge

A little animal, the sharp drop in temperatures ? below freezing here in Norfolk last week ? and the recent flu epidemic formed a dangerous conspiracy of miscommunication in our household this week: the nearly missed signs of carbon monoxide ? CO -- poisoning in a house buttoned tight for the winter.

Skip to next paragraph Lisa Suhay

Lisa Suhay, who has four sons at home in Norfolk, Va., is a children?s book author and founder of the Norfolk (Va.) Initiative for Chess Excellence (NICE) , a nonprofit organization serving at-risk youth via mentoring and teaching the game of chess for critical thinking and life strategies.

Recent posts

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We have a battery operated CO detector. But being penny-wise and not buying batteries as often as we should, it wasn?t working while a toxic CO level built in our home after some wildlife chose our chimney (which vents the gas furnace and hot water heater) as a potential nest.

For two weeks my husband, three sons, and I suffered from the blahs and flu-like symptoms which we chalked-up to seasonal illness. When we felt better after being away from the house it was assumed that the illness had subsided or home remedies had worked.

Our son Ian, 17, came home early from high school exam day and said the house ?smelled like gas? ? like propane, he added. Virginia Natural Gas puts in an additive ?mercaptan? that makes the normally odorless gas smell like rotten eggs; which is different from the ?propane smell,? and we never use propane indoors. So I told him not to worry. When he insisted, I gave the ?Don?t sass your mother? warning.

It was fairly rare for Ian to come back to me a few minutes later looking mulish and actually demand I call the gas company ? so unusual and alarming that I relented and called.

I was told not to put my cordless phone handset back on the receiver or use the computer to prevent them from causing a spark. I was told to check on the flame in the furnace because, according to the emergency operator at VA Natural Gas, ?A gas flame should burn bright blue. A yellow or orange flame could indicate improper combustion or venting.?

Virginia Natural Gas (VNG) offers a checklist for detecting potential signs of carbon monoxide buildup and poisoning symptoms and we had them all. The buildup clues are: stuffy or stale air, very high humidity, fallen soot from the chimney or draft hood, and a hot draft coming from the draft hood. The poisoning symptoms were very similar to those being pounded into us by all the stories about the flu epidemic.

According to the VGN technician who assessed our home, the CO level should have been no higher than 9 parts-per-million by the handheld meter that he brought. Our home was at 240 PPM and climbing fast. ?At levels over 9 PPM, CO begins to adversely affect your health if you persist in breathing it for over eight hours," according to eHow?s David Scott.

Today everyone is fine. We opened all the windows, shut down appliances, got the people, cats, and dog outdoors and had a neighbor who has a heating business make an emergency visit. He found the chimney blocked, saying it was birds or squirrels trying to keep warm by filling the chimney with twigs and leaves in hopes of building a nest.

I talked to VGN spokesman Duane Bourne, who said our situation is not uncommon. ?These [carbon monoxide] leaks occur most often during the winter months, when an improperly vented furnace is turned on for the first time and when a furnace runs more frequently during colder temperatures like what you have been experiencing."

The debris filled a 5-gallon bucket, and then all was right with the world again. I bought a slightly more expensive detector that has both batteries as well as a plug for sockets. Sure, times are tough, but our family is priceless.

I wish a little bird had told me what to look for a month ago, instead of creating distress in our nest. I am putting up netting around the chimney cap and two new birdhouses down in the yard.

The Christian Science Monitor has assembled a diverse group of the best family and parenting bloggers out there. Our contributing and guest bloggers are not employed or directed by the Monitor, and the views expressed are the bloggers' own, as is responsibility for the content of their blogs.

Source: http://rss.csmonitor.com/~r/feeds/csm/~3/erM0A34j6QE/Deep-freeze-and-family-safety-Watch-the-carbon-monoxide-levels

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Tuesday, January 29, 2013

He hate me?

Philadelphia Eagles v New Orleans SaintsGetty Images

Eagles running back LeSean McCoy has made headlines for his Twitter use before, but there?s a big difference between trash talking with Giants defensive end Osi Umenyiora and what happened between him and the mother of his son over the weekend.

McCoy lobbed volleys toward the woman, whose Twitter page identifies her only as Steph, in what seemed to be an argument about requests for money. USA Today has some of the tweets from McCoy?s account, which has been deleted, as well as the woman?s replies. Those replies included accusations that McCoy performed a particular sexual act to her to get out of paying child support and that McCoy?s current girlfriend had slept with one of his best friends.

McCoy originally deactivated the account by saying that his account was hacked. It?s a familiar explanation for unsavory content, but McCoy took the unusual step of admitting he made up the hacking story as part of a larger apology for the whole situation.

?In light of the recent events that played out over Twitter this past weekend, I would like to express how deeply sorry and remorseful I am to my family, the?Philadelphia Eagles, my fans, and every young person who views me as a role model. This is not who I am as a person, nor the image I ever wanted to portray of myself. It?s definitely not the example I want to set for my son,? McCoy said in a statement, via CSNPhilly.com. ?My Twitter account was not hacked. I take full responsibility and I apologize for trying to make it seem like it was not me. Due to my bad judgment and frustration, I allowed a very personal matter to be played out on a social network, of all things. It was immature and unprofessional for me to do so and to encourage others to join in.?

Anyone who follows athletes on Twitter can tell the ones who are doing it for themselves and those who are doing it with help as part of developing their ?brand.? The latter approach is boring and inauthentic, but it?s a lot less likely to get you in trouble for flying off the handle in full view of the public.

Source: http://profootballtalk.nbcsports.com/2013/01/28/poll-61-percent-of-players-disapprove-of-goodells-performance/related/

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Journalism By Numbers: Why Journalists Are Skipping Lunch To Learn Stats

This is a guest post by Frank Swain who works at the Royal Statistical Society on a project to develop science training for journalists.

?

On the screen in front of us stands row upon row of little grey figures, four hundred in all if you count the ones cut off by the skewed aspect ratio. Five of the figures are stained red. They are dead. They developed pancreatic cancer. The rest are still enjoying their bacon sandwiches.

And so, the professor stood in front of the screen concludes, the relative risk associated with eating processed meat is 20%, or to put it another way, one extra death for every four hundred people. A relative risk increase of 20%, but an absolute risk increase of just 1 percentage point. The same statistic, but two entirely different news stories, depending on how you frame it.

A hand goes up. ?Whose responsibility is it,? the woman asks, ?to convert those numbers??

It?s a good question. In public health studies, risk factors are often presented in relative terms, because that format makes sense when discussing interventions on a population scale. How many lives could be saved by encouraging British citizens to skip that second sausage? ?But when discussing personal health choices, it?s absolute risks, not relative ones, that are most useful. Tell me my diet ramps up my risk of cancer by 20% and I may choke on my pork scratchings, but tell me that I?m shaving my life expectancy by a year and I?ll probably decide the intervening half-century is better spent in the company of fry ups.

When science makes the crossover from academic into public discourse, whose responsibility is it to adjust the language accordingly? A common attitude within the science community seems to be that journalists reporting on science stories ought to be able to substitute risk factors and odds ratios as easily as epidemiologists do. That?s a facile argument to make, but journalists are also the least equipped to do this, both in terms of time and ability. It is important, however, that journalists understand how influential this kind of reframing can be, and how it can take control of the reporting line if left unbridled.

The goal of delivering that understanding is what led me to this secluded corner of the UK?s Channel 4 newsroom, listening to the professor talk about relative risk and other statistical concepts to over a dozen journalists. The workshop, and many more like it, have come about through the Royal Statistical Society?s publicly-funded BenchPress project, which aims to develop science and statistical training for journalists. The project was set up in response to a white paper published by the UK Government?s department for Business, Innovation and Skills in 2010 which highlighted a dearth in the availability of such training, both within the industry and within the classrooms that supply it with new graduates. As part of the project, I?ve developed a network of a dozen volunteer speakers who regularly visit schools and newsrooms across the country to help future potential communicators and journalists get to grips with numbers. ?The passion of the volunteers?all working scientists?helps ensure that both junior and more senior journalists produce science news stories that are as robust and accurate as possible.

Later this week, Hilda Bastian and Evelyn Lamb will host a discussion of rogue statistics at this year?s ScienceOnline conference, and the problems these can cause in politics and the media. ?One of the most important roles of math blogging for non-mathematicians,? they write, ?is clarifying the ways in which things are abused, and how we can make the true meaning of statistics clear without losing the attention of the audience.? I?d argue that?s a sentiment shared by journalists of all stripes, not just math bloggers. No one I?ve approached?neither college nor newsroom?has yet turned down the offer of a free workshop on science and statistics. Everyone in the industry is aware that the era of data journalism is fast approaching. Already political pundits in the US have seen their audiences depart in droves for the analytical pronouncements of quant Nate Silver. My advice to Bastian and Lamb is this: don?t be content to stop at math bloggers. The world?s hacks are just as eager to get their numbers right, if you?ll only help them along the way.

Source: http://rss.sciam.com/click.phdo?i=8867db904937674d1167ca8a29b96ce1

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Fujitsu speeds up internet transmissions, declares war on buffering

Fujitsu speeds up internet transmissions, declares war on buffering

Fujitsu's engineers, bored of waiting for their movies to download, have cooked up a new data transfer protocol that promises to be 30 times faster than current speeds. Using a proprietary tweak of user datagram protocol (UDP), the software examines the available bandwidth and only uses the optimal amount, rather than trying to load the pipe with more than it can handle. The science, however, lies in its ability to distinguish between packets that haven't arrived and those which are lost -- and only resending the latter. It's hoping to commercialize the software at some point this year, so if your Skype chats suddenly get a lot less laggy, you know who to blame.

Show full PR text

Fujitsu Develops New Data Transfer Protocol Enabling Improved Transmissions Speeds


Software-only approach enables over 30 times improvement in file transfer speeds between Japan and the US, reduces virtual desktop operating latency to less than 1/6 of previous levels

Kawasaki, Japan, January 29, 2013 - Fujitsu Laboratories Limited today announced the development of a new data transfer protocol that, by taking a software-only approach, can significantly improve the performance of file transfers, virtual desktops and other various communications applications.

Conventionally, when using transmission control protocol (TCP)(1)-the standard protocol employed in communications applications-in a low-quality communications environment, such as when connected to a wireless network or during times of line congestion, data loss (packet loss) can occur, leading to significant drops in transmission performance due to increased latency from having to retransmit data.

To address this problem, Fujitsu Laboratories has succeeded at a software-only approach, developing: 1) A new protocol that incorporates an efficient proprietarily developed retransmission method based on user datagram protocol (UDP)(2), an optimized way to deliver streaming media able to reduce latency resulting from data retransmission when packet loss occurs; 2) Control technology that addresses the problem of UDP transmissions consuming excess bandwidth by performing a real-time measurement of available network bandwidth and securing an optimal amount of communications bandwidth without overwhelming TCP's share of the bandwidth; and 3) Technology that, by employing the new protocol, makes it possible to easily speed up existing TCP applications without having to modify them.

Through a simple software installation, the new technology will make it possible to speed up TCP applications that previously required costly specialized hardware, and it can also be easily incorporated into mobile devices and other kinds of equipment. Moreover, compared with TCP, the technology enables a greater than 30 times improvement in file transfer speeds between Japan and the US, in addition to reducing virtual desktop operating latency to less than 1/6 of previous levels. This, in turn, is expected to make it easier to take advantage of various applications employing international communication lines and wireless networks which are anticipated to become increasingly widespread.
Background

With the increased popularity of mobile devices and cloud services in recent years, a wide range of applications have begun to utilize communications capabilities. In many applications, such as file transfer, virtual desktop, and other communications applications, TCP is employed as a standard communications protocol. One issue with TCP is that data loss (packet loss) can occur in low-quality communications environments, resulting in significant drops in transmission performance (reduced throughput and higher latency) due to increased latency from having to retransmit data. In the future, it is expected that there will be greater opportunities to take advantage of international communications lines and wireless networks, making it necessary to ensure that transmission performance does not drop even when connected to a low-quality communications environment.
Technological Challenges

Currently, one well-known method of speeding up application transmission speeds in low-quality communications environments is to employ specialized acceleration hardware. This kind of specialized equipment, however, is expensive and bulky, making it difficult to incorporate into mobile devices. High-speed transmission methods for transferring files using software-based acceleration also exist, but to support a variety of existing TCP applications using these methods, it has been necessary to make modifications to the traffic processing components of each application.
Newly Developed Technology

By developing a proprietary software-based transfer protocol, Fujitsu Laboratories has succeeded in significantly improving the throughput and operating latency of existing TCP applications.

Key features of the new technology are as follows:
1) New protocol improves throughput and latency in low-quality communications environments

Fujitsu has developed a new protocol that incorporates a proprietarily developed and efficient retransmission method based on UDP, a protocol optimized for delivering streaming media. As a result, the new protocol is able to reduce latency resulting from data retransmission when packet loss occurs. The protocol can quickly distinguish between lost packets and packets that have not yet arrived at their destination, thereby preventing unnecessary retransmissions and latency from occurring. By incorporating the new protocol as a software add-on to UDP, it is possible to maintain the high speeds typical of UDP while avoiding packet loss and packets being sent in reverse order, UDP's main weaknesses. This, in turn, has enabled improvements in packet delivery and latency. In a comparison with standard TCP, the new protocol achieved a throughput increase of over 30 times during a simulated file transfer between Japan and the US, and operating packet delivery latency was reduced to less than 1/6 of previous levels.

2) Communications bandwidth control technology using real-time measurement of available network bandwidth

Fujitsu Laboratories developed a control technology that, by performing real-time measurement of available network bandwidth, can secure an optimal amount of communications bandwidth without overwhelming the share of bandwidth used by other TCP communications in a mixed TCP environment. For example, when other TCP communications are using relatively little bandwidth, the bandwidth share for the new protocol will increase, and when other TCP communications are taking up a higher percentage of bandwidth, the new protocol will use a smaller share.


3) Technology for accelerating existing TCP applications without any modifications

Fujitsu Laboratories has developed a technology that automatically converts TCP traffic standard for a wide variety of applications into the new protocol described in (1) above. This makes it possible to significantly improve the speed of a host of existing applications, including file transfer applications, virtual desktop applications, and web browsing applications, all without the need for any modifications.
Results

The use of the new technology is expected to speed up the performance of a wide range of communications applications employing international communication lines and wireless networks which are anticipated to become widely used more and more. For instance, the technology can help speed up web browsing and file download speeds in mobile communications environments where there is deterioration due to building obstructions or movement. In addition, the technology can improve data transfer speeds between datacenters in Japan and the US. It is also expected to help improve the usability of virtual desktops when accessing a virtual desktop located on a remote server using a low-quality communications environment (Figure 2).
Future Development

During fiscal 2013, Fujitsu Laboratories aims to commercialize the new technology as a communications middleware solution for improving communications speeds without having to modify existing TCP applications.

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Source: http://www.engadget.com/2013/01/29/fujitsu-udp-tweak/

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Monday, January 28, 2013

A look at notable deadly nightclub fires

Firefighters work to douse a fire at the Kiss Club in Santa Maria city, Rio Grande do Sul state, Brazil, Sunday, Jan. 27, 2013. Firefighters say that the death toll from a fire that swept through a crowded nightclub in southern Brazil has risen to 180. Officials say the fire broke out at the club while a band was performing. At least 200 people were also injured. (AP Photo/Agencia RBS)

Firefighters work to douse a fire at the Kiss Club in Santa Maria city, Rio Grande do Sul state, Brazil, Sunday, Jan. 27, 2013. Firefighters say that the death toll from a fire that swept through a crowded nightclub in southern Brazil has risen to 180. Officials say the fire broke out at the club while a band was performing. At least 200 people were also injured. (AP Photo/Agencia RBS)

A fire that swept through a crowded nightclub in southern Brazil early Sunday and killed more than 230 people appears to be the deadliest in more a decade. Here is a look at some of the biggest nightclub fires in the past century:

? A blaze at the Lame Horse nightclub in Perm, Russia, broke out in December 2009, when an indoor fireworks display ignited a plastic ceiling decorated with branches, killing 152.

? A December 2004 fire killed 194 people at an overcrowded working-class nightclub in Buenos Aires, Argentina, after a flare ignited ceiling foam.

? A nightclub fire in the U.S. state of Rhode Island in 2003 killed 100 people after pyrotechnics used as a stage prop by the 1980s rock band Great White set ablaze cheap soundproofing foam on the walls and ceiling.

?In China's worst nightclub disaster in recent years, a fire blamed on a welding accident tore through a disco in the central city of Luoyang in December 2000, killing 309 people.

?A fire at the Ozone Disco Pub in 1996 in Quezon City, Philippines, killed 162 people, many of them students celebrating the end of the school year.

?In 1977, 165 people perished and more than 200 were injured when the Beverly Hills Supper Club in Southgate, Kentucky, which touted itself as the Showplace of the Nation, burned to the ground.

?A fire killed 492 people at Boston's Cocoanut Grove club in 1942, the deadliest nightclub blaze in U.S. history. The fire led to the enactment of requirements for sprinkler systems and accessible exits with emergency lights not linked to the regular lighting system.

?In 1940, a fire ignited the decorative Spanish moss draping the ceiling of the Rhythm Night Club in Natchez, Mississippi, killing 209 people. Hundreds of patrons ran to the only exit. The windows had been boarded shut to keep unwanted guests from sneaking in.

Associated Press

Source: http://hosted2.ap.org/APDEFAULT/cae69a7523db45408eeb2b3a98c0c9c5/Article_2013-01-27-Nightclub-Fires-Glance/id-774b0545c35c443db6478025ffa55bc7

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Forensic Astronomer Cracks the Case of Historic Meteor Procession

It was a cloudy winter night along the northeastern United States in February 1913, so most people might not have noticed anything unusual around 9 PM, but for a lucky few with clearer conditions ? and a penchant for staring up at the night sky ? there was a spectacular display of a series of fireballs moving from one end of the horizon to the other, following the same trajectory. It was a meteor procession ? an exceedingly rare event in which a meteor breaks up when it hits the Earth?s atmosphere. Normally, a meteor burns up as it plunges to Earth, but the fiery fragments in a procession travel in a nearly horizontal path running parallel to the surface of the Earth.

The meteor procession of February 9, 1913, captured newspaper headlines all over the northeast, and inspired a painting by Canadian astronomer Gustav Hahn. We?re approaching the 100th anniversary of that display, so it?s fitting that Donald Olson ? a self-described ?forensic astronomer? at Texas State University ? has a new article (co-authored by Steve Hutcheon of Australia?s Astronomical Association of Queensland)? in Sky and Telescope detailing his latest analysis of historical accounts describing the procession.

I?ve been a fan of Olson?s quirky research for years, and wrote about his findings several times for Discovery News. There was his intriguing hypothesis that the moon may have contributed to the sinking of the Titanic. He helped clear up confusion among historians as to the precise? location of Julius Caesar?s landing site when the Roman general invaded Britain in 55 B.C. He showed that Mary Shelley was probably telling the truth about a moonlit ?waking dream? that inspired her to pen Frankenstein. And he?s studied nagging astronomy-related issues in Chaucer?s Canterbury Tales, the photography of Ansel Adams, and Edvard Munch?s ?The Scream? (likely inspired by a blood-red sky at sunset, an after-effect of the 1883 eruption of Mount Krakatoa in Indonesia)

Depiction of the 1913 meteor procession by Canadian artist Gustav Hahn. Credit: University of Toronto Archives (A2008-0023), ? Natalie McMinn

Nor is this the first time Olson has tacked meteor procession. There was another such event in 1860, he discovered, one that likely inspired a classic poem by Walt Whitman, ?Year of Meteors?:

Nor the comet that came unannounced out of the north flaring in heaven,
Nor the strange huge meteor-procession dazzling and clear shooting
over our heads,
(A moment, a moment long it sail?d its balls of unearthly light over
our heads,
Then departed, dropt in the night, and was gone;)

Originally historians assumed that Whitman was referring to the 1833 or 1858 Leonid meteor storms, or a well-documented meteor that fell in 1959, but Olson suspected that there might be a record of a meteor procession in the historical record around the samr time. There was: he found several eyewitness accounts and newspaper reports of ?a spectacular procession of multiple fireballs? on July 20, 1860. It even inspired yet another artist, Frederic Church, ?The Meteor of 1860.? (Artists seem to like incorporating astronomical events into their paintings.)

Frederic Church's "The Meteor of 1860." Public domain.

Olson came across the Church painting and the Whitman mystery a few years after stumbling upon Hahn?s canvas (Hahn was an amateur astronomer) in an article by astronomer Clarence Chant, who evocatively described the ?slow, majestic motion of the bodies., and almost equally remarkable was the perfect formation which they retained.?

Hahn?s painting also? had an inscription: ?Meteor display of February 9, 1913, as seen near High Park.?He quickly recognized the similarities between the Hahn and Church scenes, and from there made the connection to the Whitman poem.

Which brings us to Olson?s latest work. William F. Denning penned an article about the 1913 procession in Nature in 1916, observing that its extended trajectory seemed unparalleled in astronomical history. Based on reports from ship navigators around the world, as well as other eyewitness accounts, it seemed to space more than 6000 miles. Later that year, in the Journal of the Royal Astronomical Society of Canada, he renewed his call for more navigational reports, since these were the best means of definitively confirming the range of the procession?s trajectory.

Olson and Hutcheon answered the call, albeit 100 years later. They combed through vast maritime archives and found seven new ship reports from that era. based on their subsequent analysis, they were able to extend the range of the 1913 procession?s trajectory by another 1000 miles. ?The track now goes more than 7000 miles ? that?s more than a quarter of the way around the world,? Olson said via press release. His new analysis is ?the most complete map ever drawn of the ground track of the procession.?

References:

Chant, C. (1913). ?An Extraordinary Meteoric Display?. Journal of the Royal Astronomical Society of Canada 7: 145?19.

Olson, Donald and Hutcheon, Steve. ?The Great Meteor Procession of 1913,? Sky and Telescope, February 2013.

Pickering, W. H. (1922) ?The Meteoric Procession of February 9, 1913, Part I? in Popular Astronomy, 30: 632.

?

Source: http://rss.sciam.com/click.phdo?i=6e8395482be601c40730f5fd860390f7

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China considers lifting video game console ban says report ...

China considers lifting video game console ban says report ? SlashGear | Bowden Gaming 9 visitors online now
6 guests, 3 bots, 0 members
Max visitors today: 17 at 07:27 am EST
This month: 30 at 01-10-2013 08:13 pm EST
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Source: http://www.bowdengaming.com/?p=16360

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Venezuela VP: ailing Chavez in 'best moment'

CARACAS, Venezuela (AP) ? Venezuelan President Hugo Chavez's condition has improved and he is now optimistic as he faces more treatment following cancer surgery, his vice president said Saturday.

Vice President Nicolas Maduro said after meeting with Chavez in Cuba that the ailing president is now "in the best moment we've seen him in these days of struggle" following his Dec. 11 cancer surgery. Chavez hasn't appeared or spoken publicly since before the operation, and his government has said he suffered complications including a severe respiratory infection but has recently been improving.

Maduro spoke on state television early Saturday after returning from Havana to Venezuela. He said he was leaving shortly for a summit meeting in Chile with a written message from Chavez.

"We're taking a message prepared by the president, and we're going to turn it over to heads of state who attend the CELAC summit. He makes fundamental proposals," Maduro said, adding that the message was in Chavez's handwriting.

Maduro said Chavez also sent a message for Venezuelans, including that he was "very optimistic" about his treatment. Maduro said Chavez is "hanging on to Christ and to life."

Maduro said Chavez also urged his supporters in Venezuela to be alert about opponents seeking to do harm to his socialist-oriented "revolution." However, Maduro didn't elaborate.

The vice president, whom Chavez designated as his successor before the operation, spoke on television surrounded by officials including Defense Minister Diego Molero and Information Minister Ernesto Villegas. Maduro said Villegas would give a more detailed update on Chavez's health later Saturday.

Chavez has undergone repeated surgeries, chemotherapy and radiation treatment for an unspecified type of pelvic cancer. He has undergone much of his treatment in Cuba.

The 58-year-old president won re-election in October, and lawmakers indefinitely put off his inauguration earlier this month in a decision that was condemned by opponents but upheld by the Supreme Court.

The vice president said, without giving details, that Chavez "has reviewed and evaluated reports on different areas and has made decisions."

He also said Chavez had signed documents related to economic issues, as well as one about the selection of his socialist party's candidates for mayoral elections later this year. The vice president showed the signature in red ink.

Source: http://news.yahoo.com/venezuela-vp-ailing-chavez-best-moment-072401926.html

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Sunday, January 27, 2013

Pass 41 ? Blog Archive ? Home and Business Security

Today?s thief is becoming more and more adept at breaking into your home and quickly robbing your most expensive items without being noticed. Even if you think you live in a safe neighborhood, you can become a victim of theft. With the best security and surveillance equipment, you will be taking the necessary steps to protect your home or business. With our security company, we have several different supplies for residential, business, and industrial security such as security cameras and professional security systems. Don?t postpone taking the necessary steps to protect your home or office, call us today. Security Systems Lakewood CO

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Source: http://www.pass41.com/home-and-business-security/

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Mr. Belding Pushes for Saved by the Bell Reunion

Source: http://www.thehollywoodgossip.com/2013/01/mr-belding-pushes-for-saved-by-the-bell-reunion/

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Soccer violence verdict sparks deadly riots in Egypt

PORT SAID, Egypt/CAIRO (Reuters) - At least 32 people were killed on Saturday when Egyptians rampaged in protest at the sentencing of 21 people to death over a soccer stadium disaster, violence that compounds a political crisis facing Islamist President Mohamed Mursi.

Armored vehicles and military police fanned through the streets of Port Said, where gunshots rang out and protesters burned tires in anger that people from their city had been blamed for the deaths of 74 people at a match last year.

The rioting in Port Said, one of the most deadly spasms of violence since Hosni Mubarak's ouster two years ago, followed a day of anti-Mursi demonstrations on Friday, when nine people were killed. The toll over the past two days stands at 41.

The flare-ups make it even tougher for Mursi, who drew fire last year for expanding his powers and pushing through an Islamist-tinged constitution, to fix the creaking economy and cool tempers enough to ensure a smooth parliamentary election.

That vote is expected in the next few months and is meant to cement a democratic transition that has been blighted from the outset by political rows and street clashes.

The National Defense Council, which is led by Mursi and includes the defense minister who commands the army, called for "a broad national dialogue that would be attended by independent national characters" to discuss political differences and ensure a "fair and transparent" parliamentary poll.

The National Salvation Front of liberal-minded groups and other Mursi opponents cautiously welcomed the call.

THREATS OF VIOLENCE

Clashes in Port Said erupted after a judge sentenced 21 men to die for involvement in the deaths at the soccer match on February 1, 2012. Many were fans of the visiting team, Cairo's Al Ahly.

Al Ahly fans had threatened violence if the court had not meted out the death penalty. They cheered outside their Cairo club when the verdict was announced. But in Port Said, residents were furious that people from their city were held responsible.

Protesters ran wildly through the streets of the Mediterranean port, lighting tires in the street and storming two police stations, witnesses said. Gunshots were reported near the prison where most of the defendants were being held.

A security source in Port Said said 32 people were killed there, many dying from gunshot wounds. He said 312 were wounded and the ministry of defense had allocated a military plane to transfer the injured to military hospitals.

Inside the court in Cairo, families of victims danced, applauded and some broke down in tears of joy when they heard Judge Sobhy Abdel Maguid declare that the 21 men would be "referred to the Mufti", a phrase used to denote execution, as all death sentences must be reviewed by Egypt's top religious authority.

There were 73 defendants on trial. Those not sentenced on Saturday would face a verdict on March 9, the judge said.

At the Port Said soccer stadium a year ago, many spectators were crushed and witnesses saw some thrown off balconies after the match between Al Ahly and local team al-Masri. Al Ahly fans accused the police of being complicit in the deaths.

Among those killed on Saturday were a former player for al-Masri and a soccer player in another Port Said team, the website of the state broadcaster reported.

TEARGAS FIRED

On Friday, protesters angry at Mursi's rule had taken to the streets for the second anniversary of the uprising that erupted on January 25, 2011 and brought Mubarak down 18 days later.

Police fired teargas and protesters hurled stones and petrol bombs. Nine people were killed, mainly in the port city of Suez, and hundreds more were injured across the nation.

Reflecting international concern at the two days of clashes, British Foreign Office Minister for the Middle East Alistair Burt said: "This cannot help the process of dialogue which we encourage as vital for Egypt today, and we must condemn the violence in the strongest terms."

European Union foreign policy chief Catherine Ashton urged the Egyptian authorities to restore calm and order and called on all sides to show restraint, her spokesperson said.

On Saturday, some protesters again clashed and scuffled with police in Cairo, Alexandria and other cities. In the capital, youths pelted police lines with rocks near Tahrir Square.

In Suez, police fired teargas when protesters angry at Friday's deaths hurled petrol bombs and stormed a police post and other governmental buildings including the agriculture and social solidarity units.

Around 18 prisoners in Suez police stations managed to escape during the violence, a security source there said, and some 30 police weapons were stolen.

"We want to change the president and the government. We are tired of this regime. Nothing has changed," said Mahmoud Suleiman, 22, in Cairo's Tahrir Square, the cauldron of the 2011 anti-Mubarak revolt.

Mursi's opponents say he has failed to deliver on economic pledges or to be a president representing the full political and communal diversity of Egyptians, as he promised.

"Egypt will not regain its balance except by a political solution that is transparent and credible, by a government of national salvation to restore order and heal the economy and with a constitution for all Egyptians," prominent opposition politician Mohamed ElBaradei wrote on Twitter.

The opposition National Salvation Front, responding to the Defense Council's call for dialogue, said there must be a clear agenda and guarantees that any deal would be implemented, spokesman Khaled Dawoud told Reuters.

The Front earlier on Saturday threatened an election boycott and to call for more protests on Friday if demands were not met. Its demands included picking a national unity government to restore order and holding an early presidential poll.

Mursi's supporters say the opposition does not respect the democracy that has given Egypt its first freely elected leader.

The Muslim Brotherhood, which propelled Mursi to office, said in a statement that "corrupt people" and media who were biased against the president had stirred up fury on the streets.

The frequent violence and political schism between Islamists and secular Egyptians have hurt Mursi's efforts to revive an economy in crisis as investors and tourists have stayed away, taking a heavy toll on Egypt's currency.

(Additional reporting by Omar Fahmy, Peter Griffiths in London and Claire Davenport in Brussels; Writing by Edmund Blair; Editing by Mark Trevelyan)

Source: http://news.yahoo.com/seven-die-egypt-violence-anniversary-uprising-003521804.html

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Saturday, January 26, 2013

Gillmor Gang: The 10 Percent Solution

Gillmor Gang test patternThe Gillmor Gang ? Robert Scoble, Kevin Marks, John Taschek, and Steve Gillmor ? watched in amazement as Apple's stock price tanked due to their blowout quarter and two-thirds ownership of the U.S. smartphone revenue. @scobleizer gave it a 70% chance that he would bolt the Apple Fanboy ranks by the end of February, but only a 10% chance that an unexpected breakthrough from an unexpected source would change the world by the end of 2013.

Source: http://feedproxy.google.com/~r/Techcrunch/~3/LSiMCosKakM/

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Home of 'beautiful women and booze? turns 20

A bartender dances on the bar at a Coyote Ugly in Tampa, Fla. (Joe Raedle/Getty Images)

NEW YORK?Liliana ?Lil? Lovell was just 25 when she walked away from an up-and-coming career on Wall Street to open her bar Coyote Ugly in New York?s East Village in 1993. The bar marks its 20th anniversary this weekend, and Lovell has more than a few stories to tell.

Lovell, who had just graduated with a degree in psychology and communications from New York University, was struggling to live on a $250 weekly salary as an apprentice at an investment bank and had picked up bartending shifts to make ends meet.

Soon, Lovell was earning the equivalent of her weekly salary in tips in a single night working at a grungy dive called The Village Idiot, where the owner was known to drink Guinness by the gallon and pass out by the front door. When a tax issue closed that bar temporarily, Lovell scrounged up her tips and found an investor to help her open her own place in a vacant Italian restaurant directly across the street.

Her business plan at the time was shockingly simple: ?Beautiful women and booze,? Lovell recalled in an interview. ?It seemed like the most obvious way in the world to make money.?

But it was also groundbreaking. As Coyote Ugly prepares to mark its 20th anniversary, it?s easy to forget Lovell?s dingy little honky-tonk?which eventually spawned a Jerry Bruckheimer film, a chain of spin-off nightclubs around the world and, briefly, its own CMT reality show?was once a rarity in the nightlife world.

In those days, even in New York, it was unusual for a bar to be staffed entirely by female bartenders?even more so for one of those bartenders to be the owner and manager of the place.

?It was virtually unheard of for a woman to be bartending. There were very few women on the scene. It was almost impossible to get a job,? Lovell recalls. ?[But] what I found were that women were better sellers. I can get them with practice to be fast, but they were able to chat with the customers and created better sales. But it was considered very odd at the time by most people.?

That impression didn?t last long. Soon, Lovell?s tiny First Avenue joint was attracting big crowds?largely because of the legend of Lovell herself.

Cute and petite with the tenacity of a fearless drill sergeant, Lovell laid down strict rules for what was allowed at her bar.

For one, there was to be no girly drinks?a tough call during the coming of age of Cosmopolitans and other fruity concoctions made popular by ?Sex and the City.?

What was permitted was a jukebox of loud country music, endless shots of Jack Daniels and Patron, and a stream of constant torment aimed at the bar?s male clientele by a staff of scantily clad, gorgeous bartenders?known as Coyotes?who were encouraged to dance on the bar and make the scene as lively as possible.

It?s a business model that Lovell has fiercely perfected and protected. In expanding her business around the world, she has become something of an eternal Coyote guarding a brand that is as much her own identity as anything else.

?She was born to run an empire, with an iron first, a wickedly charismatic smile and a unique vision,? says writer Elizabeth Gilbert, who, before her ?Eat Pray Love? days, worked as a bartender at Coyote Ugly.

?I was shocked at how young she was and how terribly sexy,? Gilbert recalled of her first meeting with Lovell. ?And how commanding she was for somebody who was quite dainty and feminine. ? I think she is one of the powerful people I have ever met. We became friends over time, but I was initially very intimidated by her.?

Gilbert was 23 when she began working as a Coyote and was initially lured through the door by the sound of the blaring jukebox. Back then, Gilbert said, she lived in constant fear of being canned by Lovell, whom she says ?was not shy about firing people who did not satisfy her.?

?I was so afraid of being fired for not making enough money for Coyote Ugly that I used to steal money out of my own tip jar and put it in the cash register, so Lil would think I was attracting more customers than I actually was,? Gilbert said. ?I cannot imagine another boss so formidable that you would embezzle from yourself in order to keep her happy.?

It was an experience Gilbert later chronicled in a 1997 GQ article?a piece that made the bar famous outside New York City and attracted the attention of Bruckheimer, who optioned Gilbert?s article and used it as the basis for the 2000 film ?Coyote Ugly.?

It also made Lovell famous?who then found herself in the position of trying to protect her brand from others eager to replicate the bar?s image and success in other cities.

?I never sought fame or celebrity,? Lovell says. ?I just wanted to be financially successful. I never imagined what this would turn out to be.?

Soon, she took the Coyote Ugly bar national?eventually licensing outposts all over the world, including Las Vegas, New Orleans, Germany and Romania. With profits in revenues and licensing fees at one point exceeding an estimated $20 million a year, Crain?s named Lovell one of its top entrepreneurs under 40 in 2003.

Over the past decade, Lovell admits the business ?hasn?t always been easy.?

Many businesses besides the Coyote Ugly franchise make money off sexy strong-willed bartenders and people dancing on the bar. As a result, some of the Coyote Ugly bars, licensed to independent operators, have closed.

But many have been replaced by outposts in other cities, including three new locations in Russia that opened last year. All told, the company has 21 licensed Coyote Ugly locations all over the world?and Lovell is looking to open a new location in Los Angeles later this year.

?I always saw bartending as a means to an end,? Lovell says. ?But I think it never really hit me how far this thing had gone until I was sitting in the middle of Siberia in one of the bars I had just opened. Only then was I really like, ?Wow.??

Lovell, who now lives in New Orleans with her 13-year-old son, has ceded day-to-day management of the business to others. But she still plays a direct role as president of Ugly Inc., making sure that the bars adhere to the strict style she has laid down.

She admits changing some of those rules over the years. Before the movie, Lovell says, there wasn?t choreographed dancing?but when customers came into her bar looking for the experience they had seen in the film, she put more emphasis on hiring people who could actually move.

?I was like, well, we have to Hollywood it up!? she says.

And she continues to pay close attention to the numbers each bar generates on a daily basis. When new outposts open, Lovell is usually there to help coach the new Coyotes on how to do their jobs.

Over the years, Lovell has rejected criticism of the style of her franchise?which critics, especially women, have derided as everything from a ?flashier Hooters? or a ?PG-13 strip club? because of the way the employees use their sexuality to make money. But Lovell insists that Coyote Ugly should be viewed as a form of ?female empowerment.?

?My brand of feminism is that I am an empowered woman. I have never had to rely on a man to make money for me. And I think sexy is powerful. I think funny is powerful,? Lovell says. ?You combine all of this, and you are powerful as a woman."

Source: http://news.yahoo.com/blogs/lookout/beautiful-women-booze-famed-coyote-ugly-bar-celebrates-205728645--finance.html

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Friday, January 25, 2013

University of Derby Centre for Society, Religion & Belief events | ISA ...

Dear all,

Some events coming up at the Centre for Society, Religion & Belief (SRB) at the University of Derby. All SOCREL members and colleagues are welcome to come along.

1) The Nationalism, Identity & Belief symposium takes place on 25th March, featuring keynote speaker Daniel Trilling, author of Bloody Nasty People: The Rise of Britain?s Far Right (London: Verso, 2012), assistant editor The New Statesman, columnist for The Guardian. The conference is being organised by SRB?s Andrew Wilson and Frauke Uhlenbruch, with Jason Lee from the Identity, Conflict & Representation Research Centre. Details of how to register to attend the conference will follow.

2) The Centre for Society, Religion & Belief & the Multi-Faith Centre Seminar series. This semester?s seminars resume with speakers from the Islamic Foundation and the Universities of Derby, Birmingham and Canterbury Christ Church. We are working with the Identity, Conflict & Representation Research Centre to screen (on 13th February, 1.30-3pm) a fascinating new film on space and spirituality? by the Derby-based film-making collective leere/SpektiFilms. Please come along to these free events and do invite others. Directions to the Multi-Faith Centre can be found here: http://www.multifaithcentre.org/contact-us The programme for the semester is:

23rd January 1.30-3pm Multi-Faith Centre

Dilwar Hussain (Head of the Policy Research Centre at the Islamic Foundation)

British Secularism and Religion: Islam, Society and the State

13th February 1.30-3pm Multi-Faith Centre

leere collective & Spektifilms (film screening)

The Sacred and the Personal (What Makes Places Special?)

6th March 1.30-3pm Multi-Faith Centre

Dr Giselle Vincett (Lecturer, Centre for Postgradate Quaker Studies, University of Birmingham)

Young People, Deprivation and Religion in the UK: Coping and Resistance

17th April 1.30-3pm Multi-Faith Centre

Jamie Bird (Senior Lecturer in Therapeutic Arts, University of Derby)

Imagining the Past; Remembering the Future: Using Visual Stories to Understand Domestic Violence

8th May 1.30-3pm Multi-Faith Centre

Dr Robert Beckford (Reader in Theology & Religious Studies, Canterbury Christ Church University & award-winning broadcaster)

Title TBC

Source: http://www.isa-rc22.org/blog/?p=453

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Cyberoam : Securing You

Applications have become an integral part of every business, today! Applications are now an interface to everything an organisation is involved with, which emphasizes the dependency of organizations on Applications. Legacy applications, once deployed stand-alone in organizations, are going online, which include web-applications like CRM, ERP, CMS, online banking, E-commerce, and so on. Today, the Web hosts infinite number of applications, majority of which are running on only a couple of protocols like HTTP and HTTPS ? making applications ?port-independent?. Along with this, with the advent of trends like BYOD and rise of mobile apps, the use of Web apps in organizations is sure to rise.

Considering the popularity of Internet applications and it?s addiction amongst users, Internet applications are becoming a favourite among attackers. Reports reveal that 80% of Web applications have a vulnerability waiting to be exploited and there have been numerous security incidents in 2012, where ?application? was the medium for attack. The security risks organizations face, because of rising use of apps in networks include malware and virus attacks, excessive bandwidth consumption and much more.

Considering the explosion of Internet applications, leading to application chaos in organization?s networks, being application-layer aware, is not an option anymore for organisations. The questions that arise are:

  • Can I know & control which applications run on my network, and who uses them?
  • Can I prioritize applications based on their type and business needs?
  • What level of application control granularity does my existing security solution offer?
  • Does my existing security offer web application protection?
  • How easy it is to manage my existing security solution?

Cyberoam effectively addresses all network security concerns of organizations, on this front with its Application Visibility & Control feature available on Cyberoam UTM appliances. It enables prioritization of applications based on User Identity, time, and bandwidth, allowing great flexibility and real L2-L8 visibility & control. Advanced application controls classify applications based on their risk level, characteristics and technology, offering more granular controls. The pro-active protection model eliminates the need for manual intervention by administrator to update policy for new applications that are being added to the list.

Read more on Cyberoam solutions at www.cyberoam.com

Source: http://blog.cyberoam.com/2013/01/842/?utm_source=rss&utm_medium=rss&utm_campaign=842

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'Nanotubes on a chip' may simplify optical power measurements

Jan. 25, 2013 ? The National Institute of Standards and Technology (NIST) has demonstrated a novel chip-scale instrument made of carbon nanotubes that may simplify absolute measurements of laser power, especially the light signals transmitted by optical fibers in telecommunications networks.

The prototype device, a miniature version of an instrument called a cryogenic radiometer, is a silicon chip topped with circular mats of carbon nanotubes standing on end. The mini-radiometer builds on NIST's previous work using nanotubes, the world's darkest known substance, to make an ultraefficient, highly accurate optical power detector, and advances NIST's ability to measure laser power delivered through fiber for calibration customers.

"This is our play for leadership in laser power measurements," project leader John Lehman says. "This is arguably the coolest thing we've done with carbon nanotubes. They're not just black, but they also have the temperature properties needed to make components like electrical heaters truly multifunctional."

NIST and other national metrology institutes around the world measure laser power by tracing it to fundamental electrical units. Radiometers absorb energy from light and convert it to heat. Then the electrical power needed to cause the same temperature increase is measured. NIST researchers found that the mini-radiometer accurately measures both laser power (brought to it by an optical fiber) and the equivalent electrical power within the limitations of the imperfect experimental setup. The tests were performed at a temperature of 3.9 K, using light at the telecom wavelength of 1550 nanometers.

The tiny circular forests of tall, thin nanotubes called VANTAs ("vertically aligned nanotube arrays") have several desirable properties. Most importantly, they uniformly absorb light over a broad range of wavelengths and their electrical resistance depends on temperature. The versatile nanotubes perform three different functions in the radiometer. One VANTA mat serves as both a light absorber and an electrical heater, and a second VANTA mat serves as a thermistor (a component whose electrical resistance varies with temperature). The VANTA mats are grown on the micro-machined silicon chip, an instrument design that is easy to modify and duplicate. In this application, the individual nanotubes are about 10 nanometers in diameter and 150 micrometers long.

By contrast, ordinary cryogenic radiometers use more types of materials and are more difficult to make. They are typically hand assembled using a cavity painted with carbon as the light absorber, an electrical wire as the heater, and a semiconductor as the thermistor. Furthermore, these instruments need to be modeled and characterized extensively to adjust their sensitivity, whereas the equivalent capability in NIST's mini-radiometer is easily patterned in the silicon.

NIST plans to apply for a patent on the chip-scale radiometer. Simple changes such as improved temperature stability are expected to greatly improve device performance. Future research may also address extending the laser power range into the far infrared, and integration of the radiometer into a potential multipurpose "NIST on a chip" device.

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Story Source:

The above story is reprinted from materials provided by National Institute of Standards and Technology (NIST).

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


Journal Reference:

  1. N. A. Tomlin, J. H. Lehman. Carbon nanotube electrical-substitution cryogenic radiometer: initial results. Optics Letters, 2013; 38 (2): 175 DOI: 10.1364/OL.38.000175

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

Disclaimer: Views expressed in this article do not necessarily reflect those of ScienceDaily or its staff.

Source: http://feeds.sciencedaily.com/~r/sciencedaily/matter_energy/electronics/~3/Xq6lUB954bE/130125111337.htm

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Thursday, January 24, 2013

Kerry tackles questions on Iran, Syria, Hagel

WASHINGTON (AP) ? Sen. John Kerry, President Barack Obama's nominee for secretary of state, collected pledges of support Thursday and testified at his confirmation hearing that U.S. foreign policy should be defined by a helping hand as well as military strength.

The Massachusetts Democrat discussed Iran, Syria, climate change and a variety of issues with members of the Foreign Relations Committee at a hearing that recalled an unusual American life ? son of a diplomat, Navy lieutenant who volunteered for Vietnam, anti-war protester, five-term senator, unsuccessful nominee for president, and Obama's unofficial envoy.

The nearly four-hour hearing also provided an odd juxtaposition as Kerry, a member of the panel for 28 years and its chairman for the last four, sat alone in the witness chair. At one point, Sen. Bob Menendez, D-N.J., the incoming chairman who presided, mistakenly referred to Kerry as "Mr. Secretary."

The current secretary, Hillary Rodham Clinton, introduced Kerry, calling him "the right choice." She is stepping down after four years.

The committee is expected to approve Kerry's nomination early next week, and a full Senate vote could occur before the month is out.

"American foreign policy is not defined by drones and deployments alone," Kerry said in outlining his views. "We cannot allow the extraordinary good we do to save and change lives to be eclipsed entirely by the role we have had to play since Sept. 11, a role that was thrust upon us."

Kerry spoke out strongly for dealing with climate change, providing food and energy security and humanitarian assistance. He also spoke of robust foreign aid, but he insisted that the country must get its fiscal house in order to lead in the world.

"More than ever, foreign policy is economic policy," said Kerry, who described himself as a "recovering member of the supercommittee." That bipartisan panel failed in 2011 in its mandate to come up with a deficit-cutting plan.

Faced with Iran's nuclear program, Kerry said the United State will do what it must to prevent Tehran from obtaining a nuclear weapon, but he also signaled that diplomacy remains a viable option.

"I repeat here today: Our policy is not containment. It is prevention, and the clock is ticking on our efforts to secure responsible compliance," Kerry said.

The senator said he was hopeful that the U.S. and other nations could make progress on the diplomatic front, but that Tehran needs to relent and agree to intrusive inspections.

"If their program is peaceful, they can prove it," he said.

In an unexpected exchange, Kerry found himself defending Obama's pick of Republican Chuck Hagel to be the next defense secretary against GOP criticism.

Sen. Bob Corker, the senior Republican on the panel, expressed concerns about Hagel's support for an 80 percent reduction of U.S. nuclear weapons, a major issue for the Tennessee lawmaker and his home state. The Y-12 nuclear facility is located near Oak Ridge, Tenn., and any cuts or delays in modernization to the nuclear arsenal would have an impact on local jobs.

"I know Chuck Hagel. And I think he is a strong, patriotic former senator, and he will be a strong secretary of defense," Kerry said.

The Massachusetts senator urged lawmakers to be realistic, arguing that an 80 percent cut is an aspiration that would be unlikely in the current climate.

On Syria, Kerry was asked about his outreach to President Bashar Assad, now an international pariah after months of civil war and unending violence against his citizens.

Kerry said there was a moment where Syria reached out to the West but that the moment has long passed.

"History caught up to us. That never happened. And it's now moot, because he has made a set of judgments that are inexcusable, that are reprehensible, and I think is not long for remaining as the head of state in Syria," the senator said. "I think the time is ticking."

Sen. John McCain, R-Ariz., a fierce critic of Obama's policy on Syria, said the status quo is unacceptable with the United Nations estimating that 60,000 have been killed and the heavy influx of refugees in Jordan and Turkey.

After a recent visit to the refugee camps, McCain warned that Syrians frustrated with the U.S. response will be a recruitment target for extremists.

"We can do a lot more without putting American boots on the ground," McCain said. "Otherwise, we will be judged harshly by history."

Kerry said it was imperative to continue discussions with Russia and others in dealing with Syria but that "I don't have optimism."

Menendez noted that Kerry, if confirmed, would be the first senator on the panel in a century to ascend to the Cabinet post. President William McKinley appointed Ohio Sen. John Sherman secretary of state.

The job of the nation's top diplomat would be the realization of a dream for the 69-year-old Kerry, whom Obama passed over in 2008 when he chose Clinton. When Joe Biden became vice president, Kerry replaced the former Delaware senator as chairman of the committee.

Obama nominated Kerry after Susan Rice, the U.S. ambassador to the United Nations, removed her name from consideration following criticism from Republicans over her initial comments about the attacks on the U.S. Consulate in Benghazi, Libya.

Corker told Kerry, "You've almost lived your entire life for this moment."

The Vietnam War, a long, bitter conflict that took its toll on a generation of draft-age American men, played a prominent role at the hearing.

In his testimony, Kerry alluded to his controversial moment before the committee some 42 years ago, when the decorated Vietnam veteran testified about his opposition to the war and famously asked, "How do you ask a man to be the last man to die for a mistake?"

"Today I can't help but recognize that the world itself then was in many ways simpler, divided as it was along bi-polar, Cold War antagonisms," Kerry said. "Today's world is more complicated than anything we have experienced."

McCain, who also introduced Kerry, said their friendship took root with their work on a committee seeking to resolve the status of POWs and missing in action from Vietnam as well as efforts to ensure normal U.S. relations with Vietnam during President Bill Clinton's administration.

"Helping to establish a relationship with Vietnam that serves American interests and values, rather than one that remained mired in mutual resentment and bitterness, is one of my proudest accomplishments as a senator, and I expect it is one of John's as well," McCain said.

The hearing is the first of three for Obama's national security nominees, and the least controversial. Hagel will face tough questions about his past statements on Israel, Iran, nuclear weapons and defense spending at his confirmation hearing next Thursday before the Senate Armed Services Committee. John Brennan, the president's choice for CIA director, will be quizzed about White House national security leaks and the use of unmanned drones at his hearing next month.

Source: http://news.yahoo.com/kerry-tackles-questions-iran-syria-hagel-215114282--politics.html

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