Thursday, May 16, 2013

Interpol filter scope creep: ASIC ordering unilateral website blocks ...

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news The Federal Government has confirmed its financial regulator has started requiring Australian Internet service providers to block websites suspected of providing fraudulent financial opportunities, in a move which appears to also open the door for other government agencies to unilaterally block sites they deem questionable in their own portfolios.

The news came tonight in a statement issued by the office of Communications Minister Stephen Conroy, following a controversial event in April which saw some 1,200 websites wrongfully blocked by several of Australia?s major Internet service providers.

On April 12, Melbourne publication the Melbourne Times Weekly reported that more than 1,200 websites, including one belonging to independent learning organisation Melbourne Free University, might have been blocked by ?the Australian Government?. At the time, Melbourne Free University was reportedly told by its ISP, Exetel, that the IP address hosting its website had been blocked by Australian authorities. The block lasted from April 4 until April 12.

Subsequently, the US-based Electronic Frontier Foundation issued a media release linking the issue to the Labor Federal Government?s various Internet filtering initiatives, especially the voluntary filtering scheme currently implemented by a number of major ISPs including Telstra, Optus and Vodafone.

In November last year, Communications Minister Stephen Conroy formally dumped the Government?s highly controversial mandatory Internet filtering scheme, instead throwing his support behind a much more limited scheme which sees Australian ISPs voluntarily implementing a much more limited filter which Telstra, Optus and one or two other ISPs had already implemented. Vodafone has also implemented the filter, and the process is also believed to be under way at other ISPs such as iiNet.

The ?voluntary? filter only blocks a set of sites which international policing agency Interpol has verified contain ?worst of the worst? child pornography ? not the wider Refused Classification category of content which Conroy?s original filter had dealt with. The instrument through which the ISPs are blocking the Interpol list of sites is Section 313 of the Telecommunications Act. Under the Act, the Australian Federal Police is allowed to issue notices to telcos asking for reasonable assistance in upholding the law. It is believed the AFP has issued such notices to Telstra and Optus to ask them to filter the Interpol blacklist of sites.

The use of the Section 313 notices in this manner is believed to be the first occasion when the legislation has been interpreted to allow the Australian Federal Police to request ISPs to block website addresses. Some ISPs have questioned the legality of the use of the legislation in this manner, with some ? such as one ISP believed to be major telco TPG ? going so far as to refuse to follow the AFP?s requests to block websites.

Over the past week, a number of different Federal Government involved in Internet regulation, including the Attorney-General?s Department, the Australian Federal Police and the Australian Communications and Media Authority have denied involvement in the April block. However, tonight Senator Conroy?s office revealed that the incident that resulted in Melbourne Free University and more than a thousand other sites being blocked originated from a different source ? financial regulator the Australian Securities and Investment Commission.

On 22 March this year, ASIC issued a media release warning consumers about the activities of a cold-calling investment scam using the name ?Global Capital Wealth?, which ASIC said was operating several fraudulent websites ? www.globalcapitalwealth.com and www.globalcapitalaustralia.com. In its release on that date, ASIC stated: ?ASIC has already blocked access to these websites.?

The regulator today did not immediately respond to a request for comment clarifying that statement, but Conroy?s office tonight confirmed the agency had, as the Australian Federal Police has previously for the limited Interpol filter, issued a notice under Section 313 of the Telecommunications Act for ?an IP address that was linked to a fraud website? ? presumably the websites belonging to the group describing itself as Global Capital Wealth.

?ASIC believed that the website in question was operating in breach of Australian law, specifically section 911a of the Corporations Act 2001,? Conroy?s office said. ?Under Section 313 of the Telecommunications Act, websites that breach Australian law can be blocked.?
?
?Melbourne Free University?s website was hosted at the same IP address as the fraud website, and was unintentionally blocked. Once ASIC were made aware of what had happened, they lifted the original blocking request. The government is working with enforcement agencies to ensure that Section 313 requests are properly targeted in future.?

Anomalies in the website block occurred, according to Conroy?s office, because of the differing nature of the methods which the two agencies ? ASIC and the AFP ? have used in their Section 313 notices. Users who attempt to access websites blocked under the AFP?s limited child abuse filtering scheme are directed to a website notifying them that the site has been blocked and how they can, if necessary, appeal such a block. However, ASIC?s process merely blocked the websites suspecting of hosted fraudulent material, leaving users such as Melbourne Free University?s users in the dark as to what had happened. In addition, the AFP process uses actual website addresses ? whereas the ASIC process uses IP addresses.

ASIC?s user of Section 313 of the Telecommunications Act in this manner appears to be the first known occasion that the agency ? or any other agency than the AFP ? has done so, and appears to open the door that any Federal Government department or agency could request Australian ISPs to block websites which are believed to contain illegal material.

However, some segments of Australia?s technical and legal communities have long harboured concerns about using the legislation in this manner.

In contrast with Labor?s previous mandatory Internet filtering policy (which was to have been administered by the Australian Communications and Media Authority and which was dumped last year) there is currently no known civilian oversight of the Section 313 notifications scheme, no method of appeal and no way of ascertaining whether and why sites have been blocked under the legislation.

There is no mechanism in place to ensure that owners of web sites who have those sites blocked by Section 313 notices ? deliberately or inadvertently, as happened with the Melbourne Free University case ? are notified of the reason their sites have been blocked.

Furthermore, Section 313 of the Telecommunications Act does not specifically deal with certain breaches of the law. In fact, it only requires that ISPs give government officers and authorities (such as police) reasonable assistance in upholding the law. Because of this, there appears to be nothing to stop the Australian Federal Police, ASIC or any other agency from issuing much wider notices under the Act to ISPs, requesting they block categories of content which may be technically illegal in Australia but not blocked yet.

A number of sites which were on the borderlines of legality ? such as sites espousing a change of legislation regarding euthanasia, for example ? were believed to be included as part of the blacklist associated with the Federal Government?s much wider mandatory filtering policy. It is not clear what safeguards exist to prevent the Section 313 notification scheme to include such extra categories of content.

Because of this, the usage of Section 313 of the Telecommunications Act which ASIC applied in March appears to represent something of a ?back door? for Australian authorities to request web sites be blocked from viewing by Australians ? but with no oversight of the process, no appeals mechanism, and no transparency to the public or interaction with the formal justice system.

opinion/analysis
Long-time readers of Delimiter will note that I have for several years been warning that if the Australian Federal Police started using Section 313 of the Telecommunications Act to block child abuse websites, that there would be nothing to stop that newly re-interpreted legislation from being used by the AFP or other agencies to block whatever other websites they felt like on the day.

In fact, I remember getting into a very loud and angry argument with then-Internet Industry Association chief executive Peter Coroneos ? who helped develop the Interpol filter/AFP process ? about the potential for scope creep once Section 313 of the Act started to be used in this manner. I hope Coroneos will now admit that he helped open Pandora?s Box for Government Internet filtering.

It is very easy to foresee that other Federal Government agencies would like to follow the example set by ASIC and quietly use Section 313 notices to block other sites on the borderlines of legality. The Department of Health and Aging may like to block pro-euthanasia sites, for example, or sites promoting illegal drug use. The Australian Taxation Office may like to block sites promoting methods of tax evasion. The Department of Defence may like to block sites which expose details of Australian military misconduct. And so on. The list is endless, and I am sure that there are at least a couple of agencies closely examining what ASIC has done here, with a view to potentially doing the same in their own portfolios in future. Hell, the ASIC case may just be the tip of an existing iceberg; the example where someone actually got caught, because of a false positive.

The questions about the lack of transparency and oversight involved in such a process should be obvious to all concerned. It is very close to a universally accepted truth that the Australian public does not want government authorities to be able to unilaterally order websites blocked to Australian view without (at least) oversight of that process and a robust appeals process.

There are also questions here about how such a process may interplay with the existing courts system. I would ask, for example, whether ASIC has actually concluded a legal case against the individuals behind the ?Global Capital Wealth? sites which it ordered blocked in March. If it has not, one wonders whether it is exceeding its authority in ordering those sites offline. The evidence collected by the regulator, may, after all, not support its case that the sites are fraudulent. Where is the line? We?ve seen law enforcement authorities come unstuck in their accusations before, after all. That?s why Australia has a courts system ? so that the claims of law enforcement can be tested, and not just taken for granted.

Let me finish this article by noting how disappointed I am in the personal integrity of all of the government public servants who enabled or abetted this situation to come about. In the course of my investigations into this matter over the past week, I contacted three of the key Federal Government departments and agencies concerned with Internet regulation ? the ACMA, the Attorney-General?s Department, and the AFP.

In each case, each agency explicitly denied responsibility for the action which led to Melbourne Free University being unfairly blocked in April. However, in each case, each agency implicitly had knowledge of what had happened, but was unwilling to comment further on the issue. ASIC?s action has also completely blindsided Australia?s telcos, most of whom, having just gotten used to the Interpol filter, are right now wondering what the hell is happening and why they?re now being told by the financial regulator to filter a whole new category of content.

Eventually, Communications Minister Stephen Conroy came clean on the issue ? most likely because I signalled I was determined to get to the bottom of the matter, and would pursue it through Freedom of Information requests if necessary, as I have done with previous government Internet filtering efforts.

However, coming clean on this kind of issue ? unilateral government censorship of Australia?s Internet access, behind closed doors and with zero public transparency ? is a little like owning up to being a serial philanderer. It lets people know what type of person you are, but it doesn?t solve the problem, and it won?t stop people feeling cheated.

The Australian public overwhelmingly rejected the Labor Federal Government?s previous attempt at a universal Internet filter. Now that filter is back: But it?s on questionable legal ground, it?s being done behind closed doors by anonymous public servants (remind you of the data retention process?), it?s already resulting in massive false positives and there?s no notification or appeals mechanism. Wonderful. But then again, don?t we trust the Government? Don?t we?

Source: http://delimiter.com.au/2013/05/15/interpol-filter-scope-creep-asic-ordering-unilateral-website-blocks/

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Monday, May 6, 2013

Rolling Stones launch tour with energetic set

LOS ANGELES (AP) ? The Rolling Stones must have passed through a time machine before taking the Staples Center stage to kick off their "50 and Counting" anniversary tour.

Mick Jagger, Keith Richards, Ronnie Wood and Charlie Watts delivered a rousing set Friday night with the kind of youthful energy and musical verve they displayed decades ago. Their faces showed their age, but their performance did not, with a nonstop, more than two-hour set packed with well-worn hits.

Jagger and Richards are each 69 years old, and Watts is 71, but they transformed into their younger selves for the night. (Wood is the baby of the band at 65.)

Jagger might not hit all the notes he once did, but he still busted out his almost spastic, serpentine dance moves on song after song. He's impossibly thin, and his spine showed through the light shirt he wore.

Staples Center was packed to capacity for the concert, the first of 17 dates the Stones are set to play throughout the United States.

The stage was modeled after the band's iconic logo, with lips and teeth above the stage and a tongue-shaped platform that extended into the crowd.

A video of famous folks sharing their favorite Rolling Stones memories played before the band took the stage, with Johnny Depp, Martin Scorsese, Perry Farrell and others reminiscing about their favorite tunes.

Actress Cate Blanchett recalled "just how skinny they were."

"It really, really pisses me off," she said.

(Honestly, the Stones could produce a best-selling diet book ? the members are as slim as they were as aspiring rockers in the 1960s.)

Other videos showed the aging rockers as young men.

Jack Nicholson was among the stars in the audience, and fans welcomed him with a round of applause as he took his seat.

"It was either us or the Lakers, so now you got us," Jagger said early in the show, referring to the basketball playoffs that forced the band to postpone its opening concert from Thursday to Friday.

"It doesn't matter to Jack Nicholson," Jagger continued, "because he was coming to both of them."

Nicholson wasn't the only star in the house. Gwen Stefani, wearing long blond hair and a bedazzled Rolling Stones tank top, joined the group onstage to sing "Wild Horses."

"I've got to get one of these T-shirts," Jagger said, admiring her top.

Keith Urban played guitar and sang backup on "Respectable." Former Stones member Mick Taylor added guitar to "Midnight Rambler."

Richards sang a pair of tunes: "Happy" and "Before They Make Me Run." Jagger also played guitar and harmonica, and came out in a floor-length marabou cape to perform "Sympathy for the Devil."

"We first played in LA in 1965," Jagger said. "Thank you for keeping on coming to see us."

The Rolling Stones' tour continues through June 21.

___

Follow AP Entertainment Writer Sandy Cohen on Twitter: www.twitter.com/APSandy.

___

Online:

www.rollingstones.com

Source: http://news.yahoo.com/rolling-stones-launch-tour-energetic-set-135249662.html

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Saturday, May 4, 2013

Self-affirmation improves problem-solving under stress

May 3, 2013 ? It's no secret that stress increases your susceptibility to health problems, and it also impacts your ability to solve problems and be creative. But methods to prevent associated risks and effects have been less clear -- until now.

Published in PLOS ONE, new research from Carnegie Mellon University provides the first evidence that self-affirmation can protect against the damaging effects of stress on problem-solving performance. Understanding that self-affirmation -- the process of identifying and focusing on one's most important values -- boosts stressed individuals' problem-solving abilities will help guide future research and the development of educational interventions.

"An emerging set of published studies suggest that a brief self-affirmation activity at the beginning of a school term can boost academic grade-point averages in underperforming kids at the end of the semester. This new work suggests a mechanism for these studies, showing self-affirmation effects on actual problem-solving performance under pressure," said J. David Creswell, assistant professor of psychology in CMU's Dietrich College of Humanities and Social Sciences.

Because previous research indicated that self-affirmation may be an effective stress management approach, Creswell and his research team had college students rank-order a set of values (e.g., art, business, family and friends) in terms of their personal importance, and indicate their levels of chronic stress. Participants randomly assigned to a self-affirmation condition were asked to write a couple of sentences about why their number one ranked value was important (a standard self-affirmation exercise). All participants then had to complete a challenging problem-solving task under time pressure, which required creativity in order to generate correct solutions.

The results showed that participants who were under high levels of chronic stress during the past month had impaired problem-solving performance. In fact, they solved about 50 percent fewer problems in the task. But notably, this effect was qualified by whether participants had an opportunity to first complete the self-affirmation activity. Specifically, a brief self-affirmation was effective in eliminating the deleterious effects of chronic stress on problem-solving performance, such that chronically stressed self-affirmed participants performed under pressure at the same level as participants with low chronic stress levels.

"People under high stress can foster better problem-solving simply by taking a moment beforehand to think about something that is important to them," Creswell said. "It's an easy-to-use and portable strategy you can roll out before you enter that high pressure performance situation."

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Story Source:

The above story is reprinted from materials provided by Carnegie Mellon University, via EurekAlert!, a service of AAAS.

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


Journal Reference:

  1. J. David Creswell, Janine M. Dutcher, William M. P. Klein, Peter R. Harris, John M. Levine. Self-Affirmation Improves Problem-Solving under Stress. PLoS ONE, 2013; 8 (5): e62593 DOI: 10.1371/journal.pone.0062593

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/most_popular/~3/bNH-1UohwYo/130503132956.htm

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Ovechkin, Holtby lead Capitals past Rangers 3-1

Washington Capitals left wing Alex Ovechkin (8), from Russia, prepares to shoot the puck as New York Rangers goalie Henrik Lundqvist (30), from Sweden, prepares to block in the first period of Game 1 of a Stanley Cup NHL playoff hockey series on Thursday, May 2, 2013, in Washington. (AP Photo/Alex Brandon)

Washington Capitals left wing Alex Ovechkin (8), from Russia, prepares to shoot the puck as New York Rangers goalie Henrik Lundqvist (30), from Sweden, prepares to block in the first period of Game 1 of a Stanley Cup NHL playoff hockey series on Thursday, May 2, 2013, in Washington. (AP Photo/Alex Brandon)

New York Rangers defenseman Ryan McDonagh (27) comes around for the puck after colliding with Washington Capitals left wing Alex Ovechkin (8), from Russia, in the first period of Game 1 of a Stanley Cup NHL playoff hockey series on Thursday, May 2, 2013, in Washington. (AP Photo/Alex Brandon)

Washington Capitals goalie Braden Holtby (70) makes a save in the second period of Game 1 of a Stanley Cup NHL playoff hockey series against the New York Rangers, Thursday, May 2, 2013, in Washington. (AP Photo/Alex Brandon)

Washington Capitals center Marcus Johansson (90), from Sweden, celebrates his goal with New York Rangers goalie Henrik Lundqvist (30), also from Sweden, and defenseman Dan Girardi (5) standing nearby in the second period of Game 1 of a Stanley Cup NHL playoff hockey series on Thursday, May 2, 2013, in Washington. (AP Photo/Alex Brandon)

New York Rangers left wing Carl Hagelin (62), from Sweden, goes for the puck with Washington Capitals right wing Martin Erat (10), from the Czech Republic, in the first period of Game 1 of a Stanley Cup NHL playoff hockey series on Thursday, May 2, 2013, in Washington. (AP Photo/Alex Brandon)

(AP) ? Alex Ovechkin and the Washington Capitals know they own the most effective power play in the NHL this season.

They also know it's vital to convert chances against their first-round playoff opponent, the New York Rangers, who were whistled for the fewest penalties in the league.

So after starting 0 for 3 in extra-man situations in Game 1 on Thursday night and trailing ? "We feel, like, a little bit maybe nervous," Ovechkin explained afterward ? the Capitals got a big boost when their captain put the puck in the net on their fourth power play.

Ovechkin's franchise-record 31st career playoff goal got Washington started before less-heralded teammates Marcus Johansson and Jason Chimera scored 46 seconds apart, Braden Holtby made 35 saves, and the Capitals came back to beat the Rangers 3-1 to begin the series.

When Washington defenseman Mike Green sent the puck past the net nearly seven minutes into the second period, it ricocheted off the boards and right to a charging Ovechkin, who flipped the puck past Henrik Lundqvist to make it 1-1.

"Kind of a lucky bounce," Ovechkin acknowledged, "but I'll take it."

Carl Hagelin had put sixth-seeded New York ahead 1-0 in the first period ? the only puck that made it past Holtby.

"We kind of hung him out to dry once or twice," Capitals forward Troy Brouwer said about the second-year goalie, "and he helped us out with some huge stops."

Game 2 of the best-of-seven series is Saturday in Washington.

It's the third consecutive season these two teams are facing each other in the playoffs and the fourth time in five years. The Rangers eliminated the Capitals in seven games in the second round last season.

But Washington is playing a livelier brand of hockey under first-time NHL head coach Adam Oates, a Hockey Hall of Fame forward who shifted Ovechkin from left wing to right wing and helped design the Capitals' league-best power play.

Oates also is not as apt to demand that his players sit back and protect a lead, the way his predecessor, Dale Hunter, did.

"We play more well-rounded now," defenseman Karl Alzner said. "We have guys that can score goals and are allowed to go up there and do their thing. There's really no reins on anybody. At the same time, they know what their defensive responsibilities are."

The Rangers drew six minor penalties, matching their regular-season high.

"Against a power play like that, if you're killing that much, eventually they're going to capitalize," Rangers captain Ryan Callahan said. "They've got enough talent out there to do that, and we've just got to stay out of the box."

Coach John Tortorella agreed, saying: "We can't take that many penalties. ... Hopefully we'll discipline ourselves in the next game."

Only 33 seconds after New York's Arron Asham was whistled for an illegal check to the head, Ovechkin broke his tie with Peter Bondra for most postseason goals by a Washington player.

Ovechkin slammed his shoulder into the glass to celebrate, and chants of "M-V-P!" cascaded from the red-clad fans in the stands.

Ovechkin put his name in that conversation by scoring 22 times in the last 21 games to collect his third Maurice "Rocket" Richard Trophy ? first since 2009 ? and propel Washington to the Southeast Division title.

That goal energized the Capitals. So did wiping away a 5-on-3 chance the Rangers had for nearly a minute in the second period.

Shortly after that power play ended, Capitals rookie defenseman Steve Oleksy ? who got hit in the face by a puck later in the second period ? sent a pass about 80 feet down the middle of the ice and between Rangers defensemen Dan Girardi and Ryan McDonagh to set up Johansson. The Swede collected the puck at the blue line and beat Lundqvist at the 14:21 mark to make it 2-1.

"We've got to know the guy's behind us," Girardi said. "That's not really acceptable."

It was Chimera's turn less than a minute later, when he took a pass from Mathieu Perreault, spun around near the boards and put the hosts ahead 3-1. That led to mocking choruses of "Luuuundqvist" from spectators.

"Anytime you kill a 5-on-3, especially in playoffs, the momentum goes the other way, for sure," said Chimera, who's scored six of his eight career playoff goals against the Rangers. "If they get a goal, they're feeling it. If we get a kill, obviously the crowd gets into it or we get into it. Everyone's pumped up."

Notes: The Rangers were 13-0-1 when leading after the first period during the regular season. ... Capitals RW Joel Ward returned to action after missing the last nine regular-season games with a bruised left knee. ... The Rangers were without injured LW Ryane Clowe, C Brian Boyle and D Marc Staal.

___

Follow Howard Fendrich on Twitter at http://twitter.com/HowardFendrich

Associated Press

Source: http://hosted2.ap.org/APDEFAULT/347875155d53465d95cec892aeb06419/Article_2013-05-02-HKN-Rangers-Capitals/id-e83b5d03b59c4e87a119b87fe41e0b59

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Friday, May 3, 2013

Facebook helps you log back in with a little help from your Trusted Contacts

Facebook helps you log back in with a little help from your Trusted Contacts

Facebook wants you to log in. Real bad. But the social network hasn't traditionally gone out of its way to streamline password recovery. The site's finally make things a little smoother with Trusted Contacts, a redesign and rebrand of its Trusted Friends offering. Go into Security Settings and you can list three to five e-pals, who can help you log back into the site before your farm goes belly up. Contact them and let them know you need in, and they'll get a security code and instructions to help you get back to the wall.

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Source: Facebook

Source: http://www.engadget.com/2013/05/02/facebook-trusted-contacts/?utm_medium=feed&utm_source=Feed_Classic&utm_campaign=Engadget

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Video: MetLife CEO Warns About Regulations

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Source: http://www.nbcnews.com/video/cnbc/51752956/

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The meme-ification of the GOP (Washington Post)

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Thursday, May 2, 2013

Dusty Star-Spawning Space Cloud Glows In Amazing Photo

May 1 (Reuters) - Post position for Saturday's 139th Kentucky Derby at Churchill Downs after Wednesday's draw (listed as barrier, HORSE, jockey, trainer) 1. BLACK ONYX, Joe Bravo, Kelly Breen 2. OXBOW, Gary Stevens, D. Wayne Lukas 3. REVOLUTIONARY, Calvin Borel, Todd Pletcher 4. GOLDEN SOUL, Robby Albarado, Dallas Stewart 5. NORMANDY INVASION, Javier Castellano, Chad Brown 6. MYLUTE, Rosie Napravnik, Tom Amoss 7. GIANT FINISH, Jose Espinoza, Tony Dutrow 8. GOLDENCENTS, Kevin Krigger, Doug O'Neill 9. OVERANALYZE, Rafael Bejarano, Todd Pletcher 10. PALACE MALICE, Mike Smith, Todd Pletcher 11. ...

Source: http://news.yahoo.com/dusty-star-spawning-space-cloud-glows-amazing-photo-140759329.html

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Heart cells change stem cell behavior

May 2, 2013 ? Stem cells drawn from amniotic fluid show promise for tissue engineering, but it's important to know what they can and cannot do. A new study by researchers at Rice University and Texas Children's Hospital has shown that these stem cells can communicate with mature heart cells and form electrical couplings with each other similar to those found in heart tissue. But these electrical connections alone do not prompt amniotic cells to become cardiac cells.

The study led by bioengineer Jeff Jacot, who has a joint appointment at Rice and Texas Children's, is part of ongoing research into repairing the hearts of infants born with congenital defects. Jacot's lab is designing scaffold patches that can be implanted into infant hearts. The patches, seeded with stem cells from the mother's own amniotic fluid, would ideally prompt the growth of healthy tissue that would not be rejected.

But to get there, researchers have to figure out how signals that are passed from cell to cell might guide stem cells to differentiate into heart tissue.

In a paper that appears today in the Journal of Cellular and Molecular Medicine, Jacot and his team found that amniotic fluid stem cells that are cultured with but physically separated from rat heart cells (to keep them from fusing) don't differentiate into heart cells. But the stem and heart cells do communicate through channels in the thin membrane that allow ions and small molecules to pass.

"People have suggested that if amniotic fluid cells are in an environment where they're near heart cells, something happens that causes differentiation of the amniotic fluid cells into cardiac tissue," Jacot said. "We found that isn't the case."

He said researchers have seen other types of stem cells take on the characteristics of cardiac cells and determined it was because the cells had fused together. "You get a single cell with proteins from both the stem cells and the heart cells," he said.

Jacot wanted to see if amniotic cells could take on the characteristics of heart cells if they weren't allowed to fuse. "We showed there's no evidence of actual cardiac differentiation, although there were some changes in protein expression (among the stem cells)," he said. But the stem cells "become electrically coupled to each other, like cardiac cells do with each other. That was the main finding: We do get very good electrical coupling, which we call functional gap junction connections.

"Electrical ions or really small molecules that are in one cell can diffuse directly into a cell next to it," he said. "It's like they put holes in their membranes when they're up against each other."

Knowing what signals are passed is of great value as researchers figure out how to prompt stem cells to differentiate into the desired tissue, Jacot said.

He said other labs are studying how injecting amniotic fluid stem cells directly into hearts can help recovery after a heart attack. "There are a lot of people doing this with bone marrow-derived stem cells in the U.S., including two of the biggest groups in Houston, the Methodist Hospital and the Texas Heart Institute," Jacot said. "They seem to find what we call paracrine signaling effects, where the stem cells draw in more blood vessel-forming cells. There's some discussion as to whether they stabilize the cells, but don't seem to actually make new heart tissue."

Jacot said there are probably many ways to get amniotic fluid stem cells to differentiate into viable tissue for medical uses, and the new results are just a small step toward the goal of finding the best way.

"What we've observed is a little removed from any kind of translational therapeutic aspect," he said. "But we feel what we've observed will help us understand amniotic fluid stem cells in this environment."

Co-authors are Rice graduate student Jennifer Petsche Connell, Rice junior Emily Augustini and maternal-fetal specialists Kenneth Moise Jr. and Anthony Johnson. Jacot is an assistant professor of bioengineering at Rice, director of the Pediatric Cardiac Bioengineering Laboratory at the Congenital Heart Surgery Service at Texas Children's and an adjunct assistant professor at Baylor College of Medicine.

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Story Source:

The above story is reprinted from materials provided by Rice University.

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


Journal Reference:

  1. Jennifer Petsche Connell, Emily Augustini, Kenneth J. Moise, Anthony Johnson, Jeffrey G. Jacot. Formation of functional gap junctions in amniotic fluid-derived stem cells induced by transmembrane co-culture with neonatal rat cardiomyocytes. Journal of Cellular and Molecular Medicine, 2013; DOI: 10.1111/jcmm.12056

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/heart_disease/~3/6cJLvFYjgWY/130502142700.htm

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Grizzlies win 3rd straight, 103-93

LOS ANGELES (AP) ? The Memphis Grizzlies took advantage of Blake Griffin's ankle injury and moved within a victory of clinching their first-round playoff series.

Zach Randolph scored 10 of his 25 points in the fourth quarter as the Grizzlies beat the Los Angeles Clippers 103-93 on Tuesday night, taking a 3-2 lead in their first-round playoff series.

"It certainly feels better than going home down 2-3," coach Lionel Hollins said.

Mike Conley added 20 points for the Grizzlies, who will try to wrap it up Friday night at home. The Pacific Division champion Clippers, who won their last seven games of the regular season to clinch home-court advantage for the first two rounds, would force a deciding seventh game on Sunday back at Staples Center with a win in Memphis.

Griffin was late joining teammates on the floor for warmups because he was getting his right ankle worked on. The three-time All-Star rolled it during Monday's practice when he stepped on Lamar Odom's foot during post drills, but no one in the organization let on, and coach Vinny Del Negro didn't broach the subject during his pregame briefing with reporters.

"I kept being optimistic," Griffin said. "Our training staff did a great job giving me treatment. I've never had a high ankle sprain before."

Once the game started, Griffin ignored the ankle issue and attacked the Grizzlies in the same reckless manner that has been his trademark since he came into the league. But he played only 19 minutes ? six in the second half ? and finished with four points, five rebounds and five assists. He also got a technical foul from referee Jason Phillips just 3 minutes into the game after scoring on a fastbreak layup and shoving center Marc Gasol's arm.

"It's tough. B.G. tried to give it a go, like we all knew he would," Chris Paul said. "Right now, we're fighting for our lives. It's a tough blow, but what can you do? We've got to find a way to get through it and figure it out. That's what the playoffs are all about.

"We tried to come out with some energy. We've just got to find a way to get everyone involved. As a point guard, I've got to find a way."

Paul led Los Angeles with 35 points, tying a career playoff high.

"We've got to be desperate. That's how it is," Paul said. "I've said the playoffs don't start till somebody loses at home, so I guess now they've started. We lost here at home. Now it's do or die in Memphis."

Gasol finished with 21 points and eight rebounds in a foul-plagued 31 1-2 minutes for Memphis. He picked up his fifth with 5:39 left in the third quarter, and still managed to be a factor in the fourth.

"We won with defense," Gasol said. "Zach did an amazing job under the basket, but defensively is how we won the game."

Memphis took its biggest lead, 65-52, on Conley's three-point play with 6:28 left in the third quarter. The Grizzlies opened the fourth with a 73-65 advantage before the Clippers closed on Paul's layup and Matt Barnes' fastbreak slam off a long pass by Jamal Crawford.

From then on, it was up to Paul and the reserves to bail out the Clippers. But Randolph was too much to deal with again, following his dominant efforts in Games 3 and 4.

"We knew these guys were going to come out firing, which they did," Memphis guard Tony Allen said. "Our whole thing was just keeping our composure, playing hard, playing together and not letting those guys get those lobs and the highlight stuff that they normally do. Marc Gasol and Zach Randolph were huge for us."

Tayshaun Prince helped wrap it up with a layup and a 3-pointer in the final minutes after the Clippers got within five on a short jumper by Crawford with 1:49 remaining.

"I thought we withstood the early barrages of energy that they had," Hollins said. "In the second quarter, we set the tone of the game with our defense and we played with that the rest of the game. After Marc got his fifth foul, Zach took over and carried us with his big plays and Prince hit a couple of big shots."

During a bruising opening half, 24 fouls were called and neither team led by more than four until Gasol's three-point play gave the Grizzlies a 46-40 margin with 2:35 left. Griffin picked up his third foul on the play and his second in a span of 28 seconds.

One key sequence came when Conley hit an off-balance 11-foot bank shot with 1:08 left in the half and Clippers reserve center Ryan Hollins threw the ensuing inbounds pass right to Randolph. Moments later, Conley converted two free throws to give Memphis a nine-point lead 48 seconds before intermission.

"I don't try to match anybody. I am just playing my game," Conley said. "A lot of guys are going to try and get 40 on us. I just try to stay within myself and the team's game."

With the sellout crowd of 19,384 urging him on, Paul responded with a 3-pointer. His driving layup was blocked by Prince at the end of the half.

"We're not going to lay down and we're never going to give up," Del Negro said. "We're going to play hard, play together and try to do what we can to make it work. We've got to regroup and see how healthy we can get between now and then."

NOTES: The Grizzlies committed only four turnovers during the first three quarters, none of which were converted into points by the Clippers. ... Memphis G Keyon Dooling returned to the lineup after missing Game 4 because of a strained muscle in his neck. ... Griffin did not get to the free throw line after going 18 for 22 in the first four games. He shot a career-high 66 percent during the regular season. ... Clippers G Chauncey Billups' only field goal was a 3-pointer. His 267 3-pointers in the postseason are the fourth-most behind Ray Allen, Reggie Miller and Kobe Bryant. ... The Clippers, who beat the Grizzlies at Memphis in Game 7 of last year's opening-round playoff series, had their first winning road record in franchise history this season (24-17).

Source: http://news.yahoo.com/grizzlies-win-3rd-straight-103-93-053202841.html

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Google Now Becomes Available For iPhone 5, iPhone 4S, iPad 3, iPad 4 and All iOS 5+ Devices

It seems that Google wants to be generous and offer one of the company?s best software features to Apple. Even though until now Google Now has been an exclusive feature for Android users and came along with the Jelly Bean update, it will be available on iOS, too. Yesterday, Google announced that the Google Now search function will also be available on Apple?s products, namely iPhone and iPad.

Nevertheless, it will be a difference between the Android Google Now and the iOS version as the users of the iPad and iPhone will not get it as a standalone app. Instead, the feature will be included in the iOS Google Search app. In other words, the users will have to update the Google Search application in order for Google Now to work.

This is not such a big surprise because there have been various reports saying that Google Now was going to hit the App Store. Further, even Google?s Eric Schmidt confirmed the news last month, though kind of indirectly. He stated that it depends on Apple whether if will approve the application or not. When asked about the matter, the Apple officials denied that the Google Now application was in the approval process. If we think about it, none of them actually lied because Google Now is not part of the Google Search app, but it isn?t a standalone application.

Anyway, returning to the iOS version of Google Now, the owners of the Apple products should bear in mind that the first version of Google Now for iOS will not come with all the features included in the Android version, according to Engadget. It seems that even though the first iteration won?t include all the goodies, the functionality will be updated in the future.

Among the missing features we can name boarding passes, concerts, events, Fandango and Zillow. Also, the users of the iPhone and iPad will notice that notifications and alerts will be missing, as well. The good thing is that the iOS users will be able to perform voice searches on their devices.

Google Now is one of the main attractions of Android Jelly Bean, and may also be one of the reason why some customers would choose an Android based smartphone over a device that runs iOS. Nevertheless, keeping the app exclusive for Android would not be so profitable for Google as most of its revenues come from Search and ads. Considering that Google Now is mostly search feature, an advanced one but still a search feature, Google certainly plans to make it available for as many platforms as possible.

Other reports claim that the Google Now app will also be available for Chrome and Chrome OS, which is believable because the app just hit the App Store, after all. It would make a lot more sense if Google Now will be featured on the company?s on creations. As a matter of fact, we would not be surprised if Google Now will be heading to Chrome in the following months.

All in all, it seems that the YouTube video featuring Google Now for iOS that was allegedly posted by Google accidentally and then pulled was in fact the real deal because the internet giant just posted it again, this time officially. You can check it out below the article.

Now, let?s hear it from the Android users. Are you happy about the fact that Google Now will be available on iOS, or are you frustrated because the app won?t be an Android exclusive anymore?

Source: http://feedproxy.google.com/~r/Androidgs/~3/dAOyeuIX96w/

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Wednesday, May 1, 2013

I Am Stereoblind, But the 3DS Lets Me See the World as Others See It

I cried the first time I held a Nintendo 3DS. The experience was a revelation that I'll not soon forget, and even if everyone stopped making games for it tomorrow, my blue 3DS XL is not going anywhere. That little machine is a window into a part of human experience that most people take for granted, but which is otherwise inaccessible to me.

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Source: http://feeds.gawker.com/~r/gizmodo/full/~3/NstzwLchGV8/i-am-stereoblind-but-the-3ds-lets-me-see-the-world-as-484508038

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