Video - Steering Pills Safely

Steering Pills Safely

In this video, researchers use a computer program control the position of magnetic pill inside a rat?s intestine.

01.17.2011
Video by Mathiowitz Lab/Brown University - Read the Article

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Wikipedia co-founder: app stores are a dangerous chokepoint

Wikipedia co-founder Jimmy Wales is apparently very critical of app stores. Speaking at an event in Bristol, England, Wales explained why he believes the app store model is a more immediate threat to Internet freedom than breaches of net neutrality.

Wales was quick to stress that he was speaking in a purely personal capacity before saying that systems like the iTunes App Store or the Android Market can act as a "chokepoint that is very dangerous." Furthermore, he said it was time to ask if the model was "a threat to a diverse and open ecosystem" and made the argument that "we own [a] device, and we should control it," according to Tech.Blorge. The Wikipedia chief's statements were similar to many open-access device users, including those who are interested in jailbreaking their device.

Wales also discussed the concerns over net neutrality, but argued that many were hypothetical, didn't pose an immediate danger, were "highly overblown," and centered on fears about what might happen rather than what is happening. Instead, he believes that users should be more concerned over app stores. Do you agree?

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Lawmakers Aiming to Increase Civility

A House Republican from Pennsylvania and a House Democrat from California said Sunday that they would work together to revisit federal and state laws on mental illness.

And the House speaker, John A. Boehner, used the phrase ?job-destroying? instead of ?job-killing? in reference to the Democrats? health care overhaul in a speech to colleagues on Saturday ? a subtle but pointed shift in tone, though not in substance.

As the House prepares to resume regular legislative business on Tuesday, the shooting in Arizona that killed six in a failed assassination attempt on Representative Gabrielle Giffords has shifted the political dynamic in Washington and across the nation, with lawmakers embracing a new civility.

No one is suggesting that the fierce policy disagreements will disappear or that old animosities will not remain just beneath the new, courteous veneer. But lawmakers said they expected a leveling of the discourse on even the most divisive issues, like cutting spending, whether to raise the federal debt limit and the Republican measure to repeal the Democrats? health care overhaul, which the House is set to vote on this week.

?I think the tenor on anything that happens in the House is going to be a little different,? Representative Kevin McCarthy of California, the No. 3 House Republican, told reporters at a Republican retreat that ended on Saturday in Baltimore.

Representative Jeff Flake, Republican of Arizona, said there was no retreat from a policy standpoint. ?I think you?ll see a more civil debate than you would have had otherwise,? Mr. Flake said on ?Face the Nation? on CBS. ?I?m not sure the substance of the debate will change that much.?

Of course, any change in the way lawmakers debate issues or interact with one another on the floor could be as short-lived as a 30-second ad in a primary campaign. And Republicans in the 112th Congress, newly in control of the House and a stronger force in the Senate, said they would still fight to undo much of the legislation that emerged from the 111th, in which Democrats held sway in both chambers.

But in interviews and television appearances over the weekend, lawmakers in both parties voiced clear recognition that the Arizona massacre has put them on notice that it is time to dial down the rhetoric with which they publicly express differences ? even as many reiterated a belief that the gunman?s mental illness, not heated political rhetoric, was the core issue in the shooting.

Senator Charles E. Schumer of New York, the No. 3 Democrat, and Senator Tom Coburn, Republican of Oklahoma, a leading conservative, said Sunday that they would sit together at the State of the Union speech. The gesture, expected to be replicated by colleagues, stands to alter the seemingly timeless image of lawmakers on one side of the House chamber standing and applauding a president from their own party, while lawmakers on the other side sit stone-faced, their hands in their laps.

The centrist Democratic group Third Way initially proposed bipartisan seating at the president?s annual address on Jan. 25, and Senator Mark Udall, Democrat of Colorado, urged members of Congress to embrace the idea, which Mr. Schumer said prompted him to reach out to Mr. Coburn.

?We hope that many others will follow us,? Mr. Schumer said, appearing with Mr. Coburn on ?Meet the Press? on NBC. ?Now, that?s symbolic, but maybe it just sets a tone and everything gets a little bit more civil.?

Mr. Schumer added: ?We believe in discourse in America. We believe in strenuous discourse. We don?t sweep differences under the rug.

?Tom and I have real differences. But we can do it civilly. I will say, to Tom?s credit, we have disagreed on a whole lot of stuff, but he?s always been civil, he?s always been a gentleman. And that?s an example that people should follow ? politicians and the media.?

Mr. Coburn said that the news media had focused too much on political rancor and that lawmakers on both sides simply needed to settle down to work. ?Some of the problems in our country is we talk past each other, not to each other,? he said. ?And Chuck and I have been able to work on multiple bills because we sit down, one on one, and work things out. And what we need to do is have more of that, not less of it.?

Among the potential issues to be addressed are gaps in laws intended to prevent those who are mentally ill or abuse drugs from buying guns.

Mr. Coburn noted that many questions had been raised about the mental state of Jared L. Loughner, the man accused in the Tucson attack, but that Mr. Loughner had never been brought to the attention of mental health authorities who might have prevented him from buying a weapon.

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Lawmakers Aiming to Increase Civility

A House Republican from Pennsylvania and a House Democrat from California said Sunday that they would work together to revisit federal and state laws on mental illness.

And the House speaker, John A. Boehner, used the phrase ?job-destroying? instead of ?job-killing? in reference to the Democrats? health care overhaul in a speech to colleagues on Saturday ? a subtle but pointed shift in tone, though not in substance.

As the House prepares to resume regular legislative business on Tuesday, the shooting in Arizona that killed six in a failed assassination attempt on Representative Gabrielle Giffords has shifted the political dynamic in Washington and across the nation, with lawmakers embracing a new civility.

No one is suggesting that the fierce policy disagreements will disappear or that old animosities will not remain just beneath the new, courteous veneer. But lawmakers said they expected a leveling of the discourse on even the most divisive issues, like cutting spending, whether to raise the federal debt limit and the Republican measure to repeal the Democrats? health care overhaul, which the House is set to vote on this week.

?I think the tenor on anything that happens in the House is going to be a little different,? Representative Kevin McCarthy of California, the No. 3 House Republican, told reporters at a Republican retreat that ended on Saturday in Baltimore.

Representative Jeff Flake, Republican of Arizona, said there was no retreat from a policy standpoint. ?I think you?ll see a more civil debate than you would have had otherwise,? Mr. Flake said on ?Face the Nation? on CBS. ?I?m not sure the substance of the debate will change that much.?

Of course, any change in the way lawmakers debate issues or interact with one another on the floor could be as short-lived as a 30-second ad in a primary campaign. And Republicans in the 112th Congress, newly in control of the House and a stronger force in the Senate, said they would still fight to undo much of the legislation that emerged from the 111th, in which Democrats held sway in both chambers.

But in interviews and television appearances over the weekend, lawmakers in both parties voiced clear recognition that the Arizona massacre has put them on notice that it is time to dial down the rhetoric with which they publicly express differences ? even as many reiterated a belief that the gunman?s mental illness, not heated political rhetoric, was the core issue in the shooting.

Senator Charles E. Schumer of New York, the No. 3 Democrat, and Senator Tom Coburn, Republican of Oklahoma, a leading conservative, said Sunday that they would sit together at the State of the Union speech. The gesture, expected to be replicated by colleagues, stands to alter the seemingly timeless image of lawmakers on one side of the House chamber standing and applauding a president from their own party, while lawmakers on the other side sit stone-faced, their hands in their laps.

The centrist Democratic group Third Way initially proposed bipartisan seating at the president?s annual address on Jan. 25, and Senator Mark Udall, Democrat of Colorado, urged members of Congress to embrace the idea, which Mr. Schumer said prompted him to reach out to Mr. Coburn.

?We hope that many others will follow us,? Mr. Schumer said, appearing with Mr. Coburn on ?Meet the Press? on NBC. ?Now, that?s symbolic, but maybe it just sets a tone and everything gets a little bit more civil.?

Mr. Schumer added: ?We believe in discourse in America. We believe in strenuous discourse. We don?t sweep differences under the rug.

?Tom and I have real differences. But we can do it civilly. I will say, to Tom?s credit, we have disagreed on a whole lot of stuff, but he?s always been civil, he?s always been a gentleman. And that?s an example that people should follow ? politicians and the media.?

Mr. Coburn said that the news media had focused too much on political rancor and that lawmakers on both sides simply needed to settle down to work. ?Some of the problems in our country is we talk past each other, not to each other,? he said. ?And Chuck and I have been able to work on multiple bills because we sit down, one on one, and work things out. And what we need to do is have more of that, not less of it.?

Among the potential issues to be addressed are gaps in laws intended to prevent those who are mentally ill or abuse drugs from buying guns.

Mr. Coburn noted that many questions had been raised about the mental state of Jared L. Loughner, the man accused in the Tucson attack, but that Mr. Loughner had never been brought to the attention of mental health authorities who might have prevented him from buying a weapon.

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Blog - New Type Of Entanglement Allows "Teleportation in Time", Say Physicists

Entanglement is the strange quantum phenomenon in which two or more particles become so deeply linked that they share the same existence.

That leads to some counterintuitive effects, in particular, when two entangled particles become widely separated. When that happens, a measurement on one immediately influences the other, regardless of the distance between them. This "spooky-action-at-a-distance" has profound implications about the nature of reality but a clear understanding of it still eludes physicists.

Today, they have something else to puzzle over. Jay Olson and Timothy Ralph at the University of Queensland in Australia say they've discovered a new type of entanglement that extends, not through space, but through time.

They begin by thinking about a simplified universe consisting of one dimension of space and one of time.

It's easy to plot this universe on a plane with the x-axis corresponding to a spatial dimension and the y-axis corresponding to time.

If you imagine the present as the origin of this graph, then the future (ie the space you can reach at subluminal speeds) forms a wedge that is symmetric about the y-axis. Your past (ie the space you could have arrived from at subluminal speeds) is a mirror image of this wedge reflected in the x-axis.

When two particles are present, both sitting on the x-axis, their wedges will overlap in the future and in the past. This has a simple meaning: these particles could have interacted in the past and could do so again in the future, but only in the areas of overlap.

Conventional entanglement cuts across this world, quite literally. It acts along the the x-axis, linking particles instantly in time and in defiance of the boundaries to these wedges.

What Olson and Ralph show is that entanglement can just as easily work along the y-axis too. In other words, entanglement is so deeply enmeshed in the universe that a measurement in the past has an automatic influence on the future.

That may sound like a truism. Isn't this is how the universe works, I hear you say. But this isn't ordinary cause and effect; there are some interesting subtleties to this phenomenon.

To see how, imagine an experiment that Ralph and Olson describe in which a qubit is sent into the future. The idea is that a detector acts on a qubit and then generates a classical message describing how this particle can be detected. Then, at some point in the future, another detector at the same position in space, receives this message and carries out the required measurement, thereby reconstructing the qubit.

But there's a twist. Olson and Ralph show that the detection of the qubit in the future must be symmetric in time with its creation in the past. "If the past detector was active at a quarter to 12:00, then the future detector must wait to become active at precisely a quarter past 12:00 in order to achieve entanglement," they say. For that reason, they call this process "teleportation in time".

But how is this different from ordinary existence? After all, we're all time travellers, moving into the future at the same rate. What's special about Olson and Ralph's route?

The answer is that Olson and Ralph's teleportation provides a shortcut into the future. What they're saying is that it's possible to travel into the future without being present during the time in between.

That's a fascinating scenario that immediately raises many questions. One of the first that springs to mind is what advantage might we get from this process. Might it be possible, for example, to make short-lived particles live longer by teleporting them into the future?

That isn't clear. Neither is it clear exactly how such an experiment might be done although. Presumably, it wouldn't be very different to the type of teleportation that is done in labs all over the world today, as a matter of routine (in fact Olson and Ralph say that timelike entangelment is interchangeable with the spacelike version).

That means it's only a matter of time before somebody tries it. We'll be watching!

Ref: arxiv.org/abs/1101.2565: Extraction Of Timelike Entanglement From The Quantum Vacuum



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Can Corsair Succeed Where Nvidia failed?

Anyone remember ESA? Nvidia's attempt at making the PC platform its own with the 'Enthusiast Systems Architecture' software? The idea was to get other manufacturers to include little chips in their hardware that enabled them to talk to Nvidia's motherboards. Nvidia's ESA software would then report all the readouts: voltages, temperatures, speeds and so in a single, central interface.

The problem? Other companies (mostly motherboard makers) already had their own software, and they were (and still are) key features with which to differentiate and sell their products. They already did most of the same tasks, such as temperature and voltage monitoring, as well as overclocking, even if they lacked the fancy 3D interface.

Despite its noble ideals, ESA was never really accepted and it died as quickly as it arrived.

Roll on three years and Corsair is trying the same trick with its new Corsair Link software. The difference is that Corsair isn't trying to drum up support from other companies, as it already builds many different products. Instead, Corsair Link is the company's selling point for its own hardware range, which has considerably diversified in the last 12 months.

In case you didn't realise quite the scope of Corsair's products, it now makes speakers, headphones, PSUs, PC cases, heatsinks (both air-cooling and closed-loop water-cooling), SSDs, flash drives and memory. In fact, you would only need a Corsair graphics card, sound card and motherboard in order to make an entirely Corsair PC. I bet its Pokemon set was unbeatable in school.


As you would expect, all those components can throw out a lot of useful stats for enthusiasts who like to know (okay, often obsess about) what's going on, so tying all that together under one software roof makes Corsair Link a potentially very powerful tool.

It could well work too, because the technology isn't competing with that of other companies - cases, PSUs and memory don't come with monitoring software, although they can be read remotely by the motherboard through its own software.

However, the ways in which Corsair Link differs from the software included with motherboards remains to be seen: does the company have (or plan to have) ESA-style monitoring chips in its cases, PSUs and memory? We'll have to wait and see.

Corsair is busy making a platform for itself, and given its brand strength I can really see it working. But I'm worried; will this help kill competition by pushing the PC more towards being a closed platform?

It's unfortunate that Nvidia's ESA wasn't taken up, as it potentially offered an open standard across the industry to give a greater level of monitoring and control for customers, no matter what hardware you bought. However, with every company wanting to stamp its own brand, design and influence on everything it makes, it was bound to fail. Corsair trying to entice you to buy other Corsair components via technological treats is a different matter, though.

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The Social Network filmmakers praise Facebook CEO

The Social Network won Best Screenplay, Best Director, Best Score, and Best Picture at the Golden Globes. Interestingly, the movie's film filmmakers made a point to acknowledge the real Mark Zuckerberg in their acceptance speeches.

After winning up a number of major awards at The Golden Globes, writer Aaron Sorkin had some interesting things to say in his Best Screenplay acceptance speech. "I wanted to say to Mark Zuckerberg, if you're watching tonight, Rooney Mara's character makes a prediction at the beginning of the movie, she was wrong," Sorkin said on stage. "You turned out to be a great entrepreneur, a visionary, and an altruist." Here is what Rooney Mara's character said in the movie:

You are probably going to be a very successful computer person. But you're going to go through life thinking that girls don't like you because you're a nerd. And I want you to know, from the bottom of my heart, that that won't be true. It'll be because you're an asshole.

While accepting the award for Best Picture of the year, producer Scott Rudin also praised Facebook's CEO: "I want to thank everybody at Facebook; Mark Zuckerberg for his willingness to allow us to use his life and work as a metaphor through which to tell a story about communication and the way we relate to each other."

Facebook had many issues with the film, mainly because the company was worried the general public would forget it is fiction. That being said, Zuckerberg reportedly decided it was best to take his employees to see the movie rather than trying to hide or criticize its release.

In mildly related news, FrameThink has an excellent post titled "How Facebook Ships Code." It's a long list of notes explaining how the social network operates, develops, and releases software that you may find interesting.

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Blog - Nerves 'n' Neurons

Intel Sandy Bridge launch was pointless

While the review we published yesterday of Intel's new Sandy Bridge range of CPUs was extremely glowing, the fact remains that launching it at 5am (UK time) on 3 January was pointless.

This is because, more than 33 hours after the so-called 'launch' of Sandy Bridge, you can't still buy one of these new CPUs or an LGA1155 motherboard to put one in.

In short, Sandy Bridge is a paper launch and Intel has joined the ignoble list of companies that 'launches' products you can't buy. There are several reasons why the launch on Monday is such a joke.

First of all, just days before launch, Intel pulled forwards the launch date by a couple of days, throwing the industry into disarray. For example, we had to suddenly get the review prepared earlier than expected; not a whole lot of fun when you're on national holiday and the team is spread around the globe.

Intel Sandy Bridge launch was pointless *Intel Sandy Bridge launch was pointless
You can get your own paper Sandy Bridge CPU by printing out this image

However, while most major review sites managed to scrabble some coverage together, retailers and manufacturers have still yet to catch up. As a result, no major UK or US retailer is listing any Sandy Bridge products as available to ship, let alone pre-order.

It's not just the press and retailers that are confused either - I've yet to receive a single press release from a manufacturer about their Sandy Bridge motherboards, memory or CPU coolers either. Perhaps we'll see some news later on today, when Sandy Bridge was originally meant to launch.

So, even if Sandy Bridge does (on paper) make the whole existing range of LGA1156 CPUs and most LGA1366 processors obselete, in reality it doesn't.

The sad fact is that Intel didn't need to rush out the release of Sandy Bridge in such a slap-dash manner. Its competitor has nothing remotely threatening planned until quite a lot later this year, so it's a baffling decision.

That is, unless you believe its a cynical ploy to drum up demand so that when you finally can buy Sandy Bridge, Intel can mysteriously up the price. In the meantime, don't expect a January Hardware Buyer's Guide anytime soon...

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Intel Sandy Bridge launch was pointless

While the review we published yesterday of Intel's new Sandy Bridge range of CPUs was extremely glowing, the fact remains that launching it at 5am (UK time) on 3 January was pointless.

This is because, more than 33 hours after the so-called 'launch' of Sandy Bridge, you can't still buy one of these new CPUs or an LGA1155 motherboard to put one in.

In short, Sandy Bridge is a paper launch and Intel has joined the ignoble list of companies that 'launches' products you can't buy. There are several reasons why the launch on Monday is such a joke.

First of all, just days before launch, Intel pulled forwards the launch date by a couple of days, throwing the industry into disarray. For example, we had to suddenly get the review prepared earlier than expected; not a whole lot of fun when you're on national holiday and the team is spread around the globe.

Intel Sandy Bridge launch was pointless *Intel Sandy Bridge launch was pointless
You can get your own paper Sandy Bridge CPU by printing out this image

However, while most major review sites managed to scrabble some coverage together, retailers and manufacturers have still yet to catch up. As a result, no major UK or US retailer is listing any Sandy Bridge products as available to ship, let alone pre-order.

It's not just the press and retailers that are confused either - I've yet to receive a single press release from a manufacturer about their Sandy Bridge motherboards, memory or CPU coolers either. Perhaps we'll see some news later on today, when Sandy Bridge was originally meant to launch.

So, even if Sandy Bridge does (on paper) make the whole existing range of LGA1156 CPUs and most LGA1366 processors obselete, in reality it doesn't.

The sad fact is that Intel didn't need to rush out the release of Sandy Bridge in such a slap-dash manner. Its competitor has nothing remotely threatening planned until quite a lot later this year, so it's a baffling decision.

That is, unless you believe its a cynical ploy to drum up demand so that when you finally can buy Sandy Bridge, Intel can mysteriously up the price. In the meantime, don't expect a January Hardware Buyer's Guide anytime soon...

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