Sunday, June 30, 2013

500px 2.1.4 Fixes Crashing Bugs on iPhone and iPad

The popular 500px photography app which allows you to access brilliant works from artists all over the globe has received a minor software update on iOS platforms this week.

If you visited the 500px reviews section on iTunes yesterday hoping to decide whether or not to download the app for your own iDevice, chances are you?d have left straight away.

One negative comment after another revealed that 500px was suffering from a bug that caused the app to crash in a constant manner. When an app crashes like that, it becomes unusable.

Luckily the people at 500px have been able to quickly code a patch and release it in the wild. According to everyone who uses the official 500px app on their iOS device, everything is fine now.

?[Version 2.1.4] fixes an issue where opening your profile on the iPhone causes the app to crash,? reads the changelog. Get downloading!

Download 500px for iOS (Free)??

Source: http://news.softpedia.com/news/500px-2-1-4-Fixes-Crashing-Bugs-on-iPhone-and-iPad-364390.shtml

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Quinn says pension debt growing at slower pace

CHICAGO (AP) ? Gov. Pat Quinn said Saturday that Illinois' massive pension shortfall will grow at a slower pace of $5 million a day, but the Chicago Democrat continued to pressure legislators to solve the problem, saying "we must stop this bleeding."

The daily growth in the state's unfunded liability ? the cost of benefits it has promised public employees and retirees ? was estimated at $17 million per day for the fiscal year that ends Sunday. Quinn said that number is expected to drop in the next fiscal year in part because the state has made its full pension payment for the past several years. Legislation that curbed pension benefits for newly hired workers also contributed to the decrease.

But in a press release, Quinn said Illinois residents continue to pay "a steep price" for the Legislature's failure to address the $97 billion crisis.

"We must stop this bleeding," he said. "Legislators must work around the clock to put a bill on my desk that erases the pension debt for the greater good of the people of Illinois."

Illinois has the nation's worst state pension crisis, due mostly to years of lawmakers skipping or shorting the annual payment to the state's five public-employee retirement funds. Because of the shortfall, three major credit rating agencies have downgraded Illinois to the lowest credit rating of any state in the nation, and the annual pension payment has grown to about $6 billion ? taking money away from areas such as education and public safety.

Yet legislators have been unable to agree on a solution. After ending their regular legislative session in May with the House and Senate at a stalemate over rival plans, lawmakers voted earlier this month to form a bipartisan committee to try to reach a compromise.

Quinn told the group they had until July 9 to come up with a deal, but several members have said that deadline is unrealistic, and the committee is not expected to meet it. Even if they do, an agreement would still have to get the approval of both chambers of the Democrat-controlled Legislature.

The House has supported legislation backed by Speaker Michael Madigan that would cut retirement benefits across the board. The Senate prefers a plan sponsored by Senate President John Cullerton, and drafted in cooperation with labor unions, that gives workers and retirees a choice in benefits. Madigan said his plan would save the state more money, but Cullerton believes his legislation is the only one that would survive a legal challenge.

Meanwhile, the pension problem has become a political issue for Quinn, who has said he will run for re-election in 2014. In recent weeks four candidates have announced they want his job: state Treasurer Dan Rutherford, venture capitalist Bruce Rauner and state Sen. Bill Brady, all Republicans, and Democrat Bill Daley, the former White House chief of staff.

All four candidates have ripped Quinn for what they say is a lack of leadership on the pension issue.

Quinn has pinned the blame squarely on the Legislature, saying he's made pension reform his top priority and that lawmakers now need to "do their job" and send him a bill to sign.

In his statement Saturday, Quinn's office also boasted that his "responsible fiscal policies" have slowed the growth of Illinois' pension debt.

Source: http://www.pjstar.com/news/x986311025/Quinn-says-pension-debt-growing-at-slower-pace?rssfeed=true

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Saturday, June 29, 2013

Uh Oh: Forum Communications Confirms Missing Emails From ...

The timing of the deletion of emails from NDSU President Dean Bresciani?s inbox has always been interesting. It appears as though the mass-deletion of tens of thousands of emails took place between the time when an open records request from Forum Communicatinos was fulfilled and when an open records request from Legislative Council was received.

The folks at Forum Communications have gone back and compared the results of their open records request with the one from Legislative Council and found inconsistencies involving dozens of emails:

The newspaper compared the results of its own open records request for Bresciani?s emails, made in March, with those that the North Dakota Legislative Council received after a similar request in April and found that 53 emails were missing from the results of the council?s request.

Nearly all of the emails in the Legislative Council?s request were sent by Bresciani, with few incoming emails that would sit in an inbox, suggesting that at least part of the president?s inbox was deleted sometime after The Forum?s open records request was fulfilled in late April.

The missing emails, mostly innocuous replies to Bresciani from fellow school employees, are just a fraction of the 45,375 emails that were allegedly deleted from Bresciani?s account sometime in the two weeks leading up to the Legislative Council?s request for the president?s emails ? a possible violation of the state?s open records law. The emails are now at the heart of a probe by Attorney General Wayne Stenehjem?s office.

This in and of itself may not be all that shocking a revelation. A few dozen innocuous emails probably aren?t a big deal in the grand scheme of things. But what it absolutely shows is that emails were disappearing.

And, despite previous claims from university system officials that they couldn?t verify if emails had been deleted or not, they are now acknowledging that fact. ?After being asked about the 53 missing emails identified by the Forum, NDSU and North Dakota University System officials confirmed Friday that ?a large number of emails? have been deleted,? reports Kyle Potter. ?Bresciani and other university staff initially said they couldn?t verify whether any emails had been deleted from Bresciani?s account.?

Also, Bresciani?s claim that his system was ?compromised? has been shot down:

[Bresciani] also suggested his account may have been compromised by university system staff in a ?personally directed and malicious? effort against him. But Wallman and Feldner said in the statement that the only outsiders who accessed the president?s account were fulfilling open records requests.

Days ago I had filed an open records request with NDUS spokeswoman Linda Donlin asking for the log information showing the deletion of the files. After initially acknowledging my request I?ve gotten no further communications for Donlin (who is part of the staff upheaval going on, it seems) but a university system source has given me a screen shot of the log showing the deletion of emails:

logfile

We can now dismiss a lot of the spin and self-serving explanations coming from President Bresciani?s office and other sources and focus on some facts:

  • The emails were absolutely deleted from Bresciani?s inbox.
  • Bresciani?s inbox was not ?compromised? by anyone from the university system office, despite his wild allegations.
  • NDSU did not fully complete the legislature?s request for emails given the discrepancies between the Forum Communications request and the Legislative Council request.

The questions that need to be answered is who deleted the emails, and were they deleted inadvertently or as an conscious effort to avoid an open records request? The latter, remember, is potentially a felony.

Word I?m getting from university system sources is that there were thousands of emails now-discovered that weren?t turned over to the legislature. That, if true, is damning.

Source: http://sayanythingblog.com/entry/uh-oh-forum-communications-confirms-missing-emails-from-brescianis-inbox/

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Beware: Those Instagrams of Fruit Want to Hijack Your Account

Beware: Those Instagrams of Fruit Want to Hijack Your Account

Heads up: Instagram is weathering a bit of a spam attack right now, and as you may have noticed, it's drowning in fruit. This rather large wave of juicy spam seems to be pushing some sort of "miracle fruit diet" and it could mess up your account if you fall for it.

Initially spotted by GigaOM, it's a pretty straight-foward sort of spamttack. If you click on one of the dirty fruit-links, you'll wind up on a fake BBC page, your account bio will change, and it will start sending out tainted fruit photos of its own.

To fight back, Instagram has already sent a password reset email out to a chunk of its users, and if you got one, it's always a good idea to follow through. This will all sort itself out eventually, and it doesn't seem like there's any serious damage being done, but if you're cruising the 'grams, it might be best to put off today's serving of fruit until tomorrow. [GigaOM via The Next Web]

Beware: Those Instagrams of Fruit Want to Hijack Your Account

Top image by Sergii Figurnyi/Shutterstock

Source: http://gizmodo.com/beware-those-instagrams-of-fruit-want-to-hijack-your-a-620366687

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Violent birth of neutron stars: Computer simulations confirm sloshing and spiral motions as stellar matter falls inward

June 27, 2013 ? A team of researchers at the Max Planck Institute for Astrophysics conducted the most expensive and most elaborate computer simulations so far to study the formation of neutron stars at the center of collapsing stars with unprecedented accuracy. These worldwide first three-dimensional models with a detailed treatment of all important physical effects confirm that extremely violent, hugely asymmetric sloshing and spiral motions occur when the stellar matter falls towards the center. The results of the simulations thus lend support to basic perceptions of the dynamical processes that are involved when a star explodes as supernova.

Stars with more than eight to ten times the mass of our Sun end their lives in a gigantic explosion, in which the stellar gas is expelled into the surrounding space with enormous power. Such supernovae belong to the most energetic and brightest phenomena in the universe and can outshine a whole galaxy for weeks. They are the cosmic origin of chemical elements like carbon, oxygen, silicon, and iron, of which Earth and our bodies are made of, and which are bred in massive stars over millions of years or freshly fused in the stellar explosion.

Supernovae are also the birth places of neutron stars, those extraordinarily exotic, compact stellar remnants, in which about 1.5 times the mass of our Sun is compressed to a sphere with the diameter of Munich. This happens within fractions of a second when the stellar core implodes due to the strong gravity of its own mass. The catastrophic collapse is stopped only when the density of atomic nuclei -- gargantuan 300 million tons in a sugar cube -- is exceeded.

What, however, causes the disruption of the star? How can the implosion of the stellar core be reversed to an explosion? The exact processes are still a matter of intense research. According to the most widely favored scenario, neutrinos, mysterious elementary particles, play a crucial role. These neutrinos are produced and radiated in tremendous numbers at the extreme temperatures and densities in the collapsing stellar core and nascent neutron star. Like the thermal radiation of a heater they heat the gas surrounding the hot neutron star and thus could "ignite" the explosion. In this scenario the neutrinos pump energy into the stellar gas and build up pressure until a shock wave is accelerated to disrupt the star in a supernova. But does this theoretical idea really work? Is it the explanation of the still enigmatic mechanism driving the explosion?

Unfortunately (or luckily!) the processes in the center of exploding stars cannot be reproduced in the laboratory and many solar masses of intransparent stellar gas obscure our view into the deep interior of supernovae. Research is therefore strongly dependent on most sophisticated and challenging computer simulations, in which the complex mathematical equations are solved that describe the motion of the stellar gas and the physical processes that occur at the extreme conditions in the collapsing stellar core. For this task the most powerful existing supercomputers are used, but still it has been possible to conduct such calculations only with radical and crude simplifications until recently. If, for example, the crucial effects of neutrinos were included in some detailed treatment, the computer simulations could only be performed in two dimensions, which means that the star in the models was assumed to have an artificial rotational symmetry around an axis.

Thanks to support from the Rechenzentrum Garching (RZG) in developing a particularly efficient and fast computer program, access to most powerful supercomputers, and a computer time award of nearly 150 million processor hours, which is the greatest contingent so far granted by the "Partnership for Advanced Computing in Europe (PRACE)" initiative of the European Union, the team of researchers at the Max Planck Institute for Astrophysics (MPA) in Garching could now for the first time simulate the processes in collapsing stars in three dimensions and with a sophisticated description of all relevant physics.

"For this purpose we used nearly 16,000 processor cores in parallel mode, but still a single model run took about 4.5 months of continuous computing," says PhD student Florian Hanke, who performed the simulations. Only two computing centers in Europe were able to provide sufficiently powerful machines for such long periods of time, namely CURIE at Tr?s Grand Centre de calcul (TGCC) du CEA near Paris and SuperMUC at the Leibniz-Rechenzentrum (LRZ) in Munich/Garching.

Many Terabytes of simulation data (1 Terabyte are thousand billion bytes) had to be analysed and visualized before the researchers could grasp the essence of their model runs. What they saw caused excitement as well as astonishment. The stellar gas did not only exhibit the violent bubbling and seething with the characteristic rising mushroom-like plumes driven by neutrino heating in close similarity to what can be observed in boiling water. (This process is called convection.) The scientists also found powerful, large sloshing motions, which temporarily switch over to rapid, strong rotational motions. Such a behavior had been known before and had been named "Standing Accretion Shock Instability," or SASI. This term expresses the fact that the initial sphericity of the supernova shock wave is spontaneously broken, because the shock develops large-amplitude, pulsating asymmetries by the oscillatory growth of initially small, random seed perturbations. So far, however, this had been found only in simplified and incomplete model simulations.

"My colleague Thierry Foglizzo at the Service d' Astrophysique des CEA-Saclay near Paris has obtained a detailed understanding of the growth conditions of this instability," explains Hans-Thomas Janka, the head of the research team. "He has constructed an experiment, in which a hydraulic jump in a circular water flow exhibits pulsational asymmetries in close analogy to the shock front in the collapsing matter of the supernova core." This phenomenon was named "SWASI" ("Shallow Water Analogue of Shock Instability") and allows one to demonstrate dynamical processes in the deep interior of a dying star by a relatively simple and inexpensive experimental setup of table size, of course without accounting for the important effects of neutrino heating. For this reason many astrophysicists had been sceptical that this instability indeed occurs in collapsing stars.

The Garching team could now demonstrate for the first time unambiguously that the SASI also plays an important role in the so far most realistic computer models. "It does not only govern the mass motions in the supernova core but it also imposes characteristic signatures on the neutrino and gravitational-wave emission, which will be measurable for a future Galactic supernova. Moreover, it may lead to strong asymmetries of the stellar explosion, in course of which the newly formed neutron star will receive a large kick and spin," describes team member Bernhard M?ller the most significant consequences of such dynamical processes in the supernova core.

The researchers now plan to explore in more detail the measurable effects connected to the SASI and to sharpen their predictions of associated signals. Moreover, they plan to perform more and longer simulations to understand how the instability acts together with neutrino heating and enhances the efficiency of the latter. The goal is to ultimately clarify whether this conspiracy is the long-searched mechanism that triggers the supernova explosion and thus leaves behind the neutron star as compact remnant.

Source: http://feeds.sciencedaily.com/~r/sciencedaily/space_time/astronomy/~3/xulUjZRJoLM/130627083034.htm

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Friday, June 28, 2013

Sterilizing Mars spacecraft is largely a waste of money, two experts argue

June 27, 2013 ? Two university researchers say environmental restrictions have become unnecessarily restrictive and expensive -- on Mars.

Writing in the journal Nature Geoscience, astrobiologists Alberto Fair?n of Cornell University and Dirk Schulze-Makuch of Washington State University say the NASA Office of Planetary Protection's "detailed and expensive" efforts to keep Earth microorganisms off Mars are making missions to search for life on the red planet "unviable."

The researchers claim "the protocols and policies of planetary protection are unnecessarily restricting Mars exploration and need to be revised."

The Office of Planetary Protection is like an interplanetary Environmental Protection Agency, with a mission "to minimize the biological contamination that may result from exploring the solar system."

As far as Mars is concerned, say Fair?n and Schulze-Makuch, such efforts are probably in vain since "Earth life has most likely already been transferred to Mars." Meteorite impacts have had 3.8 billion years to spread Earth life forms to Mars. Several Earth spacecraft have visited Mars without undergoing the sterilization procedures now in place.

If organisms transferred to Mars over the eons failed to survive, modern organisms would likely face the same fate. If they did survive, say Fair?n and Schulze-Makuch, "it is too late to protect Mars from terrestrial life, and we can safely relax the planetary protection policies."

The researchers say spacecraft looking for life on Mars should still be cleaned to some extent to avoid confusing possible Martian organisms with organisms brought from Earth. But sterilization for other missions, like orbiters and geology-oriented explorers, could be scaled back.

"As planetary exploration faces drastic budget cuts globally," they say, "it is critical to avoid unnecessary expenses and reroute the limited taxpayers' money to missions that can have the greatest impact on planetary exploration."

Source: http://www.sciencedaily.com/releases/2013/06/130627102617.htm

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iMore show and ZEN & TECH double double features today! Watch them all here!

iMore show and ZEN & TECH double double features today! Watch them all here!

We're playing a massive amount of post-[WWDC(http://www.imore.com/wwdc-2013), inter-Talk Moble catchup here this week, and to take it to it's most extreme level, we're not only doing both the iMore show and ZEN & TECH today, but we're doing two episodes of each of them! That's four podcasts back-to-sorta-back today! Here are the details!

  • 1pm PDT/4pm EDT/9pm BST: iMore show 353 with Peter Cohen and Daniel Jalkut.
  • 5pm PDT/8pm EDT/1am BST: iMore show 354 with Brain Klug
  • 6:30pm PDT/9:30pm EDT/2:30am BST: ZEN & TECH double feature with Georgia

We'll post the shows a few days apart so no one's feeds get jammed, but if you want to catch them all now, today, live, be here!

Want to go full screen? Head to iMore.com/live. Want to watch via iPhone or iPad? Grab the Ustream app and search for "mobilenations". Want to subscribe to any or all of our shows? Head on over to our podcast page.

    


Source: http://feedproxy.google.com/~r/TheIphoneBlog/~3/nfoSxzObS1E/story01.htm

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Sprint Vital review: a decent mid-range phone that faces tough competition

Sprint Vital review Dick Vitale's favorite phone 'it's awesome baby!'

A year or two ago, mid-range devices were nothing to gush about at neighborhood barbeques. Fast-forward to 2013, however, and smartphones listed at those middling price points are much more desirable. After all, a large number of them would have been considered high-end flagships -- had they launched last summer. The ZTE-made Sprint Vital may well have been one of those phones, given its specs: the handset features a 5-inch 720p display, dual-core Snapdragon S4 chipset, 13MP camera and solid battery. In short, the Vital is very much a 2012 phone trying to find its way in 2013. Sprint's strategy, therefore, is to sell the device for the standard mid-range price ($100 for existing customers on-contract), and see if people are willing to spend the next two years of their lives with this curious piece of workmanship. Throughout this review, we'll see for ourselves if it's worth our time, energy and focus, especially as it goes head-to-head against headlining phones from LG and Samsung. Head beyond the break for those answers and more.

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Source: http://feeds.engadget.com/~r/weblogsinc/engadget/~3/cQ5JOPAso7U/

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Perry, filibuster star clash over Texas abortions

DALLAS (AP) ? Gov. Rick Perry has invoked the name of Democratic filibuster star Wendy Davis as a rallying cry for tougher abortion limits in Texas.

Perry mentioned the former teenage mom and Harvard Law School graduate during a speech Thursday to the National Light to Life Convention in Dallas. He said the state senator "hasn't learned from her own example."

Davis shot back that the governor's words were "small" and "without dignity."

Davis staged a one-woman filibuster for more than 11 hours ? and got help from hundreds of shrieking protesters ? to keep tough new proposed abortion restrictions from passing the Legislature.

But Perry has now given lawmakers an extra 30 days to try again in the GOP-dominated Legislature, starting Monday.

Source: http://news.yahoo.com/perry-filibuster-star-clash-over-texas-abortions-175240836.html

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Thursday, June 27, 2013

Republican battles over Medicaid turn to God and morality

By David Morgan

(Reuters) - Ohio's Republican governor, John Kasich, is no fan of President Barack Obama's health reform law. But he has become an unlikely proponent of one element of Obamacare - expansion of Medicaid healthcare coverage for the poor - and he has a warning for his fellow party members about the moral consequences of blocking it.

"When you die and get to the meeting with St. Peter, he's probably not going to ask you much about what you did about keeping government small, but he's going to ask you what you did for the poor. You'd better have a good answer," Kasich, a Christian conservative, says he told one Ohio lawmaker last week.

"I can't go any harder than that. I've got nothing left."

Most Republicans oppose Obama's Patient Protection and Affordable Care Act as a costly, ineffective and unnecessary expansion of government. But some Republican governors, like Arizona's Jan Brewer and Michigan's Rick Snyder, have broken ranks to embrace the law's Medicaid expansion as a practical way to help the poor while infusing their state budgets with billions of dollars in federal funding to pay for it.

Kasich has gone further. His message of morality goes straight to the Republican Party's allegiance to traditional American values including charity, and should resonate with religious conservatives within its influential Tea Party faction.

"Those groups are important to the Republican Party these days, and thus religious appeals may well help GOP governors win approval from their colleagues in the legislature," said John Green, political science professor at the University of Akron in Ohio.

The visibly frustrated Ohio governor offers no evidence that his fellow Republicans are responding to his comments. But political analysts say moral arguments by Kasich and others could eventually help them win over Republican lawmakers who otherwise fear an electoral backlash for propping up part of Obama's health reforms.

"They're trying to appeal to the more conservative side of that community of primary voters," said Robert Blendon, who tracks the politics of healthcare for the Harvard School of Public Health.

"These state legislators are going to face primaries in less than a year, and on the Republican side, many of the people who turn out to vote will be very anti-Obamacare but also deeply religious," he said.

In neighboring Michigan, Governor Snyder's voice breaks a little when he talks about the potential human toll of not expanding Medicaid to more residents.

"How are you going to feel if you have to go into an emergency room?" he asked after fellow Republicans who control the state Senate left for the summer last week without a vote. "You'll walk in there, and see chair after chair of working poor people - hard-working people - knowing that's their healthcare system, when we could have given them a better answer."

MILLIONS MAY GET SHUT OUT

Allowing Medicaid to cover nearly everyone with incomes of up to 133 percent of the federal poverty line is central to Obama's goal of providing health insurance to millions of uninsured Americans. On those terms, the effort is failing: Almost a year after the U.S. Supreme Court gave each of the 50 states the choice of opting out of the Medicaid provision, only 23 have committed to expand, according to the nonpartisan Kaiser Family Foundation.

As a result, more than 6.3 million people living below the poverty line - $11,490 for an individual and $23,550 for a family of four - are in danger of losing the opportunity to have health coverage next year, according to a Reuters analysis of data from states and the Urban Institute, a nonpartisan research group. That's because they live either in 21 states, which have failed to move forward with the Medicaid expansion on ideological or financial grounds, or in six others that are still debating the issue: Ohio, Michigan, Indiana, New Hampshire, Pennsylvania and Tennessee.

The health reform law allows people with incomes at or above the poverty line to purchase federally subsidized private insurance through new online marketplaces in each state. But the Supreme Court left the law with no provision for helping those below the poverty line.

Analysts say Americans tend to believe falsely that most poor people are covered by the current Medicaid program, which was created in the 1960s and is jointly funded by states and the federal governments with oversight from Washington. But Medicaid covers only 29 percent of working-age people living below the poverty line, according to the Urban Institute. In many states, benefits are restricted to narrowly defined groups including pregnant women, children and the severely disabled.

Arizona's Brewer raised hopes for the Medicaid expansion to go forward in "red states" after overcoming opposition from her own party members by calling a special legislative session and threatening to veto other bills until lawmakers approved the expansion.

Some states have sought to overcome impasses by striking political agreements that would impose new costs on would-be beneficiaries. But negotiations have not always borne fruit, and the federal government has yet to approve any innovations. In Michigan, Senate Republicans declined to vote on a compromise measure that would require new Medicaid enrollees to pay 5 percent of their income on medical expenses, rising to 7 percent after four years.

Other states have considered proposals to make the expansion temporary or use federal Medicaid funds to purchase private insurance plans that could require the poor to meet deductibles and co-pays.

The Obama administration is leaving the door open for states to reconsider their Medicaid position on a quarterly basis in hopes that more will sign on.

2014 PROSPECTS SLIPPING

Meanwhile, Kasich and Snyder are struggling to make sure healthcare benefits are available for more than 820,000 people who live below the poverty line in their states - 474,000 in Ohio and 350,000 in Michigan, according to state estimates.

But the prospects for coverage in 2014 are slipping. Ohio lawmakers nixed Kasich's Medicaid expansion proposal from the new state budget. Snyder says a decision for Michigan needs to come within the next few weeks, but the state's Senate Republican leader, Randy Richardville, has said lawmakers will spend the summer reviewing the issue.

Kasich acknowledges that the Medicaid expansion may have to wait but believes his message will get through. "I will not give up this fight until we get this done, period, exclamation point," he recently told reporters in a hallway briefing in Columbus. "This is not a support of Obamacare. This is a support of helping our communities, our healthcare systems - the poor, the disabled, the addicted and the mentally ill."

The real change may come only after midterm elections for Congress next year, as state leaders wait to see whether Republicans retain control of the House of Representatives and gain control of the Senate.

"If Republicans get control of the Senate and the House, they'll dramatically try to limit this bill. If they don't get control, many of the states saying no to Medicaid will actually start saying yes," said Harvard's Blendon.

(Reporting by David Morgan; Editing by Michele Gershberg, Peter Henderson Douglas Royalty)

Source: http://news.yahoo.com/republican-battles-over-medicaid-turn-god-morality-051235647.html

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Wednesday, June 26, 2013

Shards of Summer - The New York Review of Books

Christopher Benfey

Dried head of sunflower with seeds, 1980

?Part of the mottled mood of summer?s whole??
??????????????????????????????????????????????????Wallace Stevens

Fortune favors those who notice patterns. Hence, the belief in four-leaf clovers.

I used to find four-leaf clovers everywhere. Then I read somewhere that one in 10,000 clovers has four leaves. Now I never find them. Fortune favors the uninformed.

?Everything in the world exists to end up in a book.? How quaint of Mallarm?! Everything in the world exists to end.

That endless, insoluble question: What do you want to be when you grow up?

Growing up. We also grow down.

How dependent poetry in English is on a few rhymes: fire and desire, light and night (and bright). Think of Robert Frost without word and bird.

Easy to see why birders were skeptical of Darwin. Natural selection might, in a pinch, produce an array of finches. But a hummingbird?

The dog sees me putting on my shoes and reaching for the leash. ?Great,? she thinks. ?We?re going for a walk.? Is this too anthropomorphic? Well, what?s the alternative? ?I?m going hunting with the biped, tethered to him, as usual.? Is this more likely?

Alone with your thoughts? The nightmare from which only dreams can release you.

I dreamed I met C?zanne. One of his eyes was wide open, the other firmly shut. I told my son about the dream. ?That?s why his paintings look so flat,? he said.

Taking a nap. A second chance to wake up.

Dawn breaks. Night falls.

Music slows things down. Sports speeds things up.

But who will clean the vacuum-cleaner?

Nothing like a scapegoat to draw people together. Nothing like charisma to divide them.

She told me that Celan and Bachmann had two affairs, years apart, and that different poems were inspired by different affairs. But is it possible to have two affairs with the same person?

To write as Guston painted. First, stop writing. Then, learn how to write again. Examples of this? Kafka, maybe, Guston?s favorite writer.

All those hours as a teenager sitting in churches in Mexico. What was I thinking? I mean, really, what was I thinking?

God tells Isaac to kill Abraham. It?s the woodcutter?s own wife who tells him to get rid of Hansel and Gretel. ?Okay, okay, I?ll kill them if that will make you happy.?

Moses, Oedipus, Hansel. Abandoning the child on the river, or on an exposed hillside, or in the woods. Giving him a fighting chance. Like a bullfight.

Imagine the witch?s version: ?Strangers came to my forest to cut down my trees and steal my food. I had to put them in a cage like wild animals.?

Folding chairs. Next, folding people.

Of course I don?t believe in astrology. But I consider myself a typical Scorpio.

?I have to clear the desk first.? Always a mistake. The work will never get done. Work first. Then clear the desk.

The first sign of Alzheimer?s: duly noted. You won?t be around to notice the last sign.

June 25, 2013, 2:30 p.m.

?

Source: http://www.nybooks.com/blogs/nyrblog/2013/jun/25/auguries-summer/

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Getting the carbon out of emissions

June 26, 2013 ? Proposed method could be more efficient than previous systems and easier to retrofit in existing power plants.

Many researchers around the world are seeking ways to "scrub" carbon dioxide (CO2) from the emissions of fossil-fuel power plants as a way of curbing the gas that is considered most responsible for global climate change. But most such systems rely on complex plumbing to divert the steam used to drive the turbines that generate power in these plants, and such systems are not practical as retrofits to existing plants.

Now, researchers at MIT have come up with a scrubbing system that requires no steam connection, can operate at lower temperatures, and would essentially be a "plug-and-play" solution that could be added relatively easily to any existing power plant.

The new electrochemical system is described in a paper just published online in the journal Energy and Environmental Science, and written by doctoral student Michael Stern, chemical engineering professor T. Alan Hatton and two others.

The system is a variation on a well-studied technology that uses chemical compounds called amines, which bind with CO2 in the plant's emission stream and can then release the gas when heated in a separate chamber. But the conventional process requires that almost half of the power plant's low-pressure steam be diverted to provide the heat needed to force the amines to release the gas. That massive diversion would require such extensive changes to existing power plants that it is not considered economically feasible as a retrofit.

In the new system, an electrochemical process replaces the steam-based separation of amines and CO2. This system only requires electricity, so it can easily be added to an existing plant.

The system uses a solution of amines, injected at the top of an absorption column in which the effluent gases are rising from below. The amines bind with CO2 in the emissions stream and are collected in liquid form at the bottom of the column. Then, they are processed electrochemically, using a metal electrode to force the release of the CO2; the original amine molecules are then regenerated and reused.

As with the conventional thermal-amine scrubber systems, this technology should be capable of removing 90 percent of CO2 from a plant's emissions, the researchers say. But while the conventional CO2-capture process uses about 40 percent of a plant's power output, the new system would consume only about 25 percent of the power, making it more attractive.

In addition, while steam-based systems must operate continuously, the all-electric system can be dialed back during peak demand, providing greater operational flexibility, Stern says. "Our system is something you just plug in, so you can quickly turn it down when you have a high cost or high need for electricity," he says.

Another advantage is that this process produces CO2 under pressure, which is required to inject the gas into underground reservoirs for long-term disposal. Other systems require a separate compressor to pressurize the gas, creating further complexity and inefficiency.

The chemicals themselves -- mostly small polyamines -- are widely used and easily available industrial materials, says Hatton, the Ralph Landau Professor of Chemical Engineering Practice. Further research will examine which of several such compounds works best in the proposed system.

So far, the research team, which also includes former MIT research scientist Fritz Simeon and Howard Herzog, a senior research engineer at the MIT Energy Initiative, has done mathematical modeling and a small-scale laboratory test of the system. Next, they hope to move on to larger-scale tests to prove the system's performance. They say it could take five to 10 years for the system to be developed to the point of widespread commercialization.

Because it does not rely on steam from a boiler, this system could also be used for other applications that do not involve steam -- such as cement factories, which are among the leading producers of CO2 emissions, Stern says. It could also be used to curb emissions from steel or aluminum plants.

It could also be useful in other CO2 removal, Hatton says, such as in submarines or spacecraft, where carbon dioxide can accumulate to levels that could endanger human health, and must be continually removed.

The work was supported by Siemens AG and by the U.S. Department of Energy through the Advanced Research Projects Agency for Energy.

Source: http://feeds.sciencedaily.com/~r/sciencedaily/top_news/top_science/~3/8uT9pW8An2g/130626143110.htm

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No one left to lie to (Powerlineblog)

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Tuesday, June 25, 2013

Liam Neeson to Earn $20 Million for Taken 3!

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Rainy Day Staycation at Parque Espa?a Residence Hotel ...

With the kids back to school and the rainy days upon us, it?s hard to squeeze in a getaway. But what if stress is getting the best of you? Then the next best thing would be to go on a ?staycation?.

A staycation is basically having a mini ?vacation? either just within the metro ? usually staying in a hotel/bed and breakfast/resort ? or somewhere that is just a couple of hours drive from where you live.?


However, if you?re so fed up with the metro and want a change of scenery but you?re just not up for more than a 3-hour drive to Tagaytay or Batangas, your next best bet will be to head just a little bit down south to Alabang.

Located in a quieter area of Filinvest City is Parque Espa?a. Unlike most hotels, it is a serviced residence that will be your home away from home.

As soon as you step in, your attention will be caught by the colorful Mediterranean tiles of the front desk and the vibrantly-colored furnishings of Dolce Y Naturales at the lobby lounge that is perfectly balanced by the earth-toned accents. Tr?s chic!

I approached the front desk to inform of my reservation, and after presenting? a valid ID and handing over a Php1,000 incidental deposit (refundable upon check-out), I was given our keycard together with 2 breakfast vouchers and WiFi passwords*.

We were given a 55 square meter 1-Bedroom Deluxe. Needless to say, my mom and I had a lot of space to move around!

Now, don?t worry if the lobby?s theme is not carried through to the rooms yet (but that?s not to say it?s not stylish or cozy). Parque Espa?a?s Sales & Marketing Manager, Tina Robles Anciano, explains that renovation of some rooms are in the works.

Modest dining table complete with dining ware and complimentary bottles of water.

Living room accent and flat screen TV

And because it is a serviced residence, you literally have everything you?ll ever going to need. It has a living area, dining table good for 4 persons, a kitchenette and more.

Our comfy queen-sized bed for the night

We had a bed that was more than big enough for us. The clean, fluffy and comfy sheets and pillows sent us to dreamland in no time.

Aside from the TV in the living room, there is also a wall-mounted flat screen TV and DVD player in the room.

And to maximize space ? as if the room?s not spacious enough ? the closet?s sliding door doubles as a full-length mirror. Inside are built-in clothes? hanger and a safe to keep your valuables.

The working desk with iPod dock/alarm clock and the room?s own WiFi router for faster browsing experience.

The spotless toilet and bath. Plus points for the glass-enclosed shower. No wet floors here.

Each room has its own fully-equipped kitchenette with a fridge, stove, microwave oven, and tea and coffee-making facilities. It even has a flat iron and provision for washing machine.

While I?m sure it?ll be hard to leave the comforts of your room, the roof deck is worth checking out primarily because of the modest pool and the view.

Refreshing view, isn?t it?

This is the beauty of Alabang: you get to enjoy the laid back vibe of the south and be in the metro at the same time.

If you need a quick fix, Westgate and Commerce Center is just a stone throw?s away, but why go out when you can dine at their in-house restaurant? Also located at the roof deck is Bistro del Cielo which serves really, really (did I say really?) good? and affordable food. And I?m not even exaggerating. The food is so delectable it deserves a separate blog post. ;)

For the shopaholics, guests can take advantage of Parque Espa?a?s FREE 24-hour shuttle service to nearby malls like Festival Mall and Alabang Town Center. Talk about value-added service!

Executive Suite

One of the rooms of the 3-bedroom Deluxe. Perfect for groups or families.

The staff was also kind enough to show me the other rooms they have. Though the rooms vary in layout, the amenities are consistent.

For the fitness buff, Parque Espa?a?s location is perfect for a morning run. And don?t worry if it?s gloomy outside, you can still use their fitness center located at the ground floor.?

K

*WiFi is Php100.00 per password

For real time travel updates and more photos, please 'Like' my Facebook page and follow me on Twitter. Happy travels!

Source: http://www.excursionista.net/2013/06/parque-espana-hotel.html

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Top China paper hits back at U.S. accusations on Snowden

BEIJING (Reuters) - China's top state newspaper praised fugitive U.S. spy agency contractor Edward Snowden on Tuesday for "tearing off Washington's sanctimonious mask" and rejected accusations that it had facilitated his departure from Hong Kong.

The strongly worded front-page commentary in the overseas edition of the People's Daily, the official newspaper of the Chinese Communist Party, comes after Washington harshly criticized Beijing for allowing Snowden to flee.

The exchanges mark a deterioration in ties between the two countries just weeks after a successful summit meeting between President Barack Obama and President Xi Jinping. But experts say Washington is unlikely to resort to any punitive action.

The White House said the decision was "a deliberate choice by the government to release a fugitive despite a valid arrest warrant, and that decision unquestionably has a negative impact on the U.S.-China relationship.

The People's Daily, which reflects official thinking of the government, said China could not accept "this kind of dissatisfaction and opposition".

The Chinese government has said it was gravely concerned by Snowden's allegations that the United States had hacked into many networks in Hong and China, including Tsinghua University, which hosts one of the country's Internet hubs, and Chinese mobile network companies. It has said it had taken the issue up with Washington.

"Not only did the U.S. authorities not give us an explanation and apology, it instead expressed dissatisfaction at the Hong Kong Special Administrative Region for handling things in accordance with law," wrote Wang Xinjun, a researcher at the Academy of Military Science in the People's Daily commentary.

"In a sense, the United States has gone from a 'model of human rights' to 'an eavesdropper on personal privacy', the 'manipulator' of the centralized power over the international Internet, and the mad 'invader' of other countries' networks," the People's Daily said.

"The world will remember Edward Snowden," the newspaper said. "It was his fearlessness that tore off Washington's sanctimonious mask."

In another commentary in the Global Times, owned by the People's Daily, the newspaper also attacked the United States for cornering "a young idealist who has exposed the sinister scandals of the U.S. government".

"Instead of apologizing, Washington is showing off its muscle by attempting to control the whole situation," the Global Times said.

(Reporting by Sui-Lee Wee; Editing by Raju Gopalakrishnan)

Source: http://news.yahoo.com/top-china-paper-hits-back-u-accusations-snowden-040824725.html

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Monday, June 17, 2013

New drug reverses loss of brain connections in Alzheimer's

June 17, 2013 ? The first experimental drug to boost brain synapses lost in Alzheimer's disease has been developed by researchers at Sanford-Burnham Medical Research Institute. The drug, called NitroMemantine, combines two FDA-approved medicines to stop the destructive cascade of changes in the brain that destroys the connections between neurons, leading to memory loss and cognitive decline.

The decade-long study, led by Stuart A. Lipton, M.D., Ph.D., professor and director of the Del E. Webb Center for Neuroscience, Aging, and Stem Cell Research, who is also a practicing clinical neurologist, shows that NitroMemantine can restore synapses, representing the connections between nerve cells (neurons) that have been lost during the progression of Alzheimer's in the brain. The research findings are described in a paper published June 17 by the Proceedings of the National Academy of Sciences (PNAS).

The focus on a downstream target to treat Alzheimer's, rather than on amyloid beta plaques and neurofibrillary tangles -- approaches which have shown little success -- "is very exciting because everyone is now looking for an earlier treatment of the disease," Lipton said. "These findings actually mean that you might be able to intercede not only early but also a bit later." And that means that an Alzheimer's patient may be able to have synaptic connections restored even with plaques and tangles already in his or her brain.

Targeting lost synapses

In their study, conducted in animal models as well as brain cells derived from human stem cells, Lipton and his team mapped the pathway that leads to synaptic damage in Alzheimer's. They found that amyloid beta peptides, which were once thought to injure synapses directly, actually induce the release of excessive amounts of the neurotransmitter glutamate from brain cells called astrocytes that are located adjacent to the nerve cells.

Normal levels of glutamate promote memory and learning, but excessive levels are harmful. In patients suffering from Alzheimer's disease, excessive glutamate activates extrasynaptic receptors, designated eNMDA receptors (NMDA stands for N-methyl-D-aspartate), which get hyperactivated and in turn lead to synaptic loss.

How NitroMemantine works

Lipton's lab had previously discovered how a drug called memantine can be targeted to eNMDA receptors to slow the hyperactivity seen in Alzheimer's. This patented work contributed to the FDA approval of memantine in 2003 for the treatment of moderate to severe Alzheimer's disease. However, memantine's effectiveness has been limited. The reason, the researchers found, was that memantine -- a positively charged molecule -- is repelled by a similar charge inside diseased neurons; therefore, memantine gets repelled from its intended eNMDA receptor target on the neuronal surface.

In their study, the researchers found that a fragment of the molecule nitroglycerin -- a second FDA-approved drug commonly used to treat episodes of chest pain or angina in people with coronary heart disease -- could bind to another site that the Lipton group discovered on NMDA receptors. The new drug represents a novel synthesis connecting this fragment of nitroglycerin to memantine, thus representing two FDA-approved drugs connected together. Because memantine rather selectively binds to eNMDA receptors, it also functions to target nitroglycerin to the receptor. Therefore, by combining the two, Lipton's lab created a new, dual-function drug. The researchers developed 37 derivatives of the combined drug before they found one that worked, Lipton said.

By shutting down hyperactive eNMDA receptors on diseased neurons, NitroMemantine restores synapses between those neurons. "We show in this paper that memantine's ability to protect synapses is limited," Lipton said, "but NitroMemantine brings the number of synapses all the way back to normal within a few months of treatment in mouse models of Alzheimer's disease. In fact, the new drug really starts to work within hours."

To date, therapies that attack amyloid plaques and neurofibrillary tangles have failed. "It's quite disappointing because I see really sick patients with dementia. However, I'm now optimistic that NitroMemantine will be effective as we advance to human trials, bringing new hope to both early and later-stage Alzheimer's patients," Lipton said.

Source: http://feeds.sciencedaily.com/~r/sciencedaily/top_news/top_health/~3/vWfGxSNdZ4Y/130617160849.htm

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Black Butler: Next Chapter

Oh, may I please reserve Ciel? My favorite movie would be, um, oh I have no idea. I love them all. XD

"She offered herself to the big, bad wolf and didn't scream when he took the first bite."
</3

Source: http://feedproxy.google.com/~r/RolePlayGateway/~3/KtHW-QkpQOA/viewtopic.php

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Glasses-Free 3D and Smell-o-Vision: Movies of the Future from 1935

Glasses-Free 3D and Smell-o-Vision: Movies of the Future from 1935

Predictions that 3D movies would be the wave of the future are even older than the talkies. But back in 1935 the so-called father of science fiction gave his prediction for 3D films an even bolder twist: By 1945, audiences would be able to watch 3D movies without having to wear those silly glasses.

The October 1935 issue of Everyday Science and Mechanics magazine included an article by editor-in-chief Hugo Gernsback. The article outlined the progress that had been made in technologies like the telephone, the locomotive and the radio and looked to the future of movies. Specifically, the future of 3D movies?coming soon with smell-o-vision!

What is the next step? Obviously, the three-dimensional or stereoscopic motion picture. All films thrown on the screen today are flat; they do not stand out as does, for instance, a stereoscopic picture. The characters move in but two dimensions, whereas they should move in three. In order to heighten the illusion of the motion picture, the characters must seem to stand from the screen. It is true, stereoscopic motion pictures have already been produced many times, but not satisfactorily, because you require a special set of eyeglasses to view them, and this is a bad stumbling block. No audience will stand for this indefinitely. Science, no doubt, will solve this problem so that, with the bare and unaided eye, you will see three-dimensional motion pictures. I am certain that the problem will be solved satisfactorily during the next ten years.

Gernsback believed that the evolution of movies was almost pre-determined in its path towards more realism. He argued that color film was making great strides and that it would soon be a mainstream reality in theaters around the world. But what makes a film ostensibly more "real" picture is one of the great movie debates that has been waged since the dawn of the medium?and we still can't decide what it means here in the 21st century. What is the goal of the movies? Is it to create a perfect depiction of reality? And how do we define that reality?

After that, what? It should be noted that, after all, motion pictures are only an illusion. While you view the screen you know all the time that you are not looking at living characters; but, the closer the art comes to this and the more perfect the illusion, the greater will be the acclaim by the public.

What further illusion can we have from motion pictures? We can now hear them, as well as see them in colors. It is too much to hope to feel them but, anyway, the three-dimensional movie will not make this necessary. Obvious- ly, we cannot hope to taste them. One other sense is left open, and that is scent. And here the technicians during the next twenty years will no doubt evolve marvels.

This would be done by "scent organs" from which pipes a r e carried through the auditorium; then, by forced draft, the various scents could be wafted over the house to the delight of the audience. Some years ago, in a New York theatre, a musical comedy had an elaborate scene of an orange grove.

The idea that smells would one day be their own entertainment certainly predates this prediction from Gernsback, but this is the earliest instance of incorporating smell machines with movies of the future that I've ever come across.

Today, you need look no further than Disneyland to find the "smellitizers" that accompany 3D movies like It's Tough to Be A Bug! and MuppetVision 3D. Outside Disneyland you can even get all the ambient thrills of various 4D movie technologies with not only smell-o-vision, but back ticklers and in-house strobe lights.

Of course, glasses-free 3D has been around for a while now, albeit in prototype form. But it's still a long ways off from being available in a movie theater; it couldn't even get to TVs in time to save 3DTV broadcasts. As for smell-o-vision, if decades of cinema has taught us the only scent you need to bring a movie to life is lightly buttered popcorn.

Image: 1930, Getty Images "Lord Ossulston operates the cinema projector in the cinema opened on his estate."

Source: http://paleofuture.gizmodo.com/glasses-free-3d-and-smell-o-vision-movies-of-the-futur-513784216

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North Korea wants to hold high-level talks with U.S.

By Jane Chung

SEOUL (Reuters) - North Korea on Sunday offered high-level talks with the United States to ease tensions on the Korean peninsula, only days after it canceled planned official talks with South Korea for the first time in over two years.

Planned high-level talks between North and South Korea were scrapped last week after the North abruptly called off the talks. The North blamed the South for scuttling discussions that sought to mend estranged ties between the rival Koreas.

North Korea National Defence Commission in a statement carried by KCNA news agency on Sunday said Washington can pick a date and place for talks and the two sides can discuss a range of issues, but no preconditions should be attached.

"In order to ease tensions on the Korean peninsula and to achieve regional peace and safety, we propose to hold high-level talks between the DPRK and the United States, " said the spokesman for the North's National Defence Commission in the statement. North Korea's official name is the Democratic People's Republic of Korea (DPRK).

"If the U.S. is truly interested in securing regional peace and safety and easing tensions, it should not mention of preconditions for the talks," the statement said.

Earlier this year, North Korea threatened nuclear and missile strikes against South Korea and the United States after it was hit with U.N. sanctions for its February nuclear weapons test.

In the statement, Pyongyang reiterated it was willing to discuss disarmament but the world should also be denuclearized including its southern neighbor. It added it wants the United States to sign a formal peace treaty formally ending the 1950-53 Korean War that divided the two Koreas.

Korea was divided after the Second World War and when the Korean War ended in an armistice rather than a permanent peace treaty, leaving the two countries technically at war.

North Korea agreed a denuclearization-for-aid deal in 2005 but later backed out of that accord. It has said its nuclear arms are a "treasured sword" that it will not abandon.

North Korea's one major diplomatic ally, China, has urged Pyongyang to abandon its nuclear weapons program and return to talks.

The North has a long record of making threats to secure concessions from the United States and South Korea.

North Korea's 30-year-old leader, Kim Jong-un, took power in December 2011 and has since carried out two long-range rocket launches and a nuclear weapons test, as well as a campaign of threats against South Korea and the United States.

Threats have waned in the past month, showing signs of easing tensions such as proposing talks with South Korea in early June. The talks had been intended to discuss issues resuming operations of joint commercial projects and families split during the 1950-53 Korean War.

(Reporting By Jane Chung, Editing by Jack Kim, Michael Perry)

Source: http://news.yahoo.com/north-korea-proposes-high-level-talks-u-kcna-014322264.html

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A robot that runs like a cat

A robot that runs like a cat [ Back to EurekAlert! ] Public release date: 17-Jun-2013
[ | E-mail | Share Share ]

Contact: Sarah Perrin
sarah.perrin@epfl.ch
41-216-932-107
Ecole Polytechnique Fdrale de Lausanne

Thanks to its legs, whose design faithfully reproduces feline morphology, EPFL's 4-legged 'cheetah-cub robot' has the same advantages as its model: It is small, light and fast

Even though it doesn't have a head, you can still tell what kind of animal it is: the robot is definitely modeled upon a cat. Developed by EPFL's Biorobotics Laboratory (Biorob), the "cheetah-cub robot," a small-size quadruped prototype robot, is described in an article appearing today in the International Journal of Robotics Research. The purpose of the platform is to encourage research in biomechanics; its particularity is the design of its legs, which make it very fast and stable. Robots developed from this concept could eventually be used in search and rescue missions or for exploration.

This robot is the fastest in its category, namely in normalized speed for small quadruped robots under 30Kg. During tests, it demonstrated its ability to run nearly seven times its body length in one second. Although not as agile as a real cat, it still has excellent auto-stabilization characteristics when running at full speed or over a course that included disturbances such as small steps. In addition, the robot is extremely light, compact, and robust and can be easily assembled from materials that are inexpensive and readily available.

Faithful reproduction

The machine's strengths all reside in the design of its legs. The researchers developed a new model with this robot, one that is based on the meticulous observation and faithful reproduction of the feline leg. The number of segments three on each leg and their proportions are the same as they are on a cat. Springs are used to reproduce tendons, and actuators small motors that convert energy into movement are used to replace the muscles.

"This morphology gives the robot the mechanical properties from which cats benefit, that's to say a marked running ability and elasticity in the right spots, to ensure stability," explains Alexander Sprowitz, a Biorob scientist. "The robot is thus naturally more autonomous."

Sized for a search

According to Biorob director Auke Ijspeert, this invention is the logical follow-up of research the lab has done into locomotion that included a salamander robot and a lamprey robot. "It's still in the experimental stages, but the long-term goal of the cheetah-cub robot is to be able to develop fast, agile, ground-hugging machines for use in exploration, for example for search and rescue in natural disaster situations. Studying and using the principles of the animal kingdom to develop new solutions for use in robots is the essence of our research."

###

For more information:


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

?


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


A robot that runs like a cat [ Back to EurekAlert! ] Public release date: 17-Jun-2013
[ | E-mail | Share Share ]

Contact: Sarah Perrin
sarah.perrin@epfl.ch
41-216-932-107
Ecole Polytechnique Fdrale de Lausanne

Thanks to its legs, whose design faithfully reproduces feline morphology, EPFL's 4-legged 'cheetah-cub robot' has the same advantages as its model: It is small, light and fast

Even though it doesn't have a head, you can still tell what kind of animal it is: the robot is definitely modeled upon a cat. Developed by EPFL's Biorobotics Laboratory (Biorob), the "cheetah-cub robot," a small-size quadruped prototype robot, is described in an article appearing today in the International Journal of Robotics Research. The purpose of the platform is to encourage research in biomechanics; its particularity is the design of its legs, which make it very fast and stable. Robots developed from this concept could eventually be used in search and rescue missions or for exploration.

This robot is the fastest in its category, namely in normalized speed for small quadruped robots under 30Kg. During tests, it demonstrated its ability to run nearly seven times its body length in one second. Although not as agile as a real cat, it still has excellent auto-stabilization characteristics when running at full speed or over a course that included disturbances such as small steps. In addition, the robot is extremely light, compact, and robust and can be easily assembled from materials that are inexpensive and readily available.

Faithful reproduction

The machine's strengths all reside in the design of its legs. The researchers developed a new model with this robot, one that is based on the meticulous observation and faithful reproduction of the feline leg. The number of segments three on each leg and their proportions are the same as they are on a cat. Springs are used to reproduce tendons, and actuators small motors that convert energy into movement are used to replace the muscles.

"This morphology gives the robot the mechanical properties from which cats benefit, that's to say a marked running ability and elasticity in the right spots, to ensure stability," explains Alexander Sprowitz, a Biorob scientist. "The robot is thus naturally more autonomous."

Sized for a search

According to Biorob director Auke Ijspeert, this invention is the logical follow-up of research the lab has done into locomotion that included a salamander robot and a lamprey robot. "It's still in the experimental stages, but the long-term goal of the cheetah-cub robot is to be able to develop fast, agile, ground-hugging machines for use in exploration, for example for search and rescue in natural disaster situations. Studying and using the principles of the animal kingdom to develop new solutions for use in robots is the essence of our research."

###

For more information:


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

?


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


Source: http://www.eurekalert.org/pub_releases/2013-06/epfd-art061413.php

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