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Wednesday, October 24, 2012
Tuesday, October 23, 2012
Romibo therapeutic robot, eyes-on (video)
Between old Paro the robo seal and the original iteration of Keepon, we've seen plenty of adorable robots designed for therapeutic purposes. Romibo's creators have no qualms admitting that their own creation is following in those cuddly footsteps, but what sets their furry 'bot apart from much of the competition is a focus on (relative) affordability. For starters, there's the fact that Romibo is being offered up as an open-source project online, letting do-it-yourselfers build their own versions and contribute custom designs.
The company's also hoping families will get into the act, making sure that Romibo is "able to be assembled by a neurotypical child 10+ and a parent" -- and then there are the plans to offer up workshops to let folks build robots to be donated to special needs facilities. Once built, Romibo can drive around, blink its eyes, speak and move its antennae. Crack it open and you'll find WiFi, bluetooth, light sensors, an IR Proximity sensor, accelerometers and a big 'ole Arduino Mega. There's a certain amount of autonomous functionality (watch in the video below as Romibo's handler warns about it driving off the edge of the table), or you can control the robot via an iPad app. You can also use an SD card to help teach it some new words.
Continue reading Romibo therapeutic robot, eyes-on (video)
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A Mississippi river diversion helped build Louisiana wetlands, Penn geologists find
A Mississippi river diversion helped build Louisiana wetlands, Penn geologists find
Monday, October 22, 2012The extensive system of levees along the Mississippi River has done much to prevent devastating floods in riverside communities. But the levees have also contributed to the loss of Louisiana's wetlands. By holding in floodwaters, they prevent sediment from flowing into the watershed and rebuilding marshes, which are compacting under their own weight and losing ground to sea-level rise.
Reporting in Nature Geoscience, a team of University of Pennsylvania geologists and others used the Mississippi River flood of the spring of 2011 to observe how floodwaters deposited sediment in the Mississippi Delta. Their findings offer insight into how new diversions in the Mississippi River's levees may help restore Louisiana's wetlands.
While scientists and engineers have previously proposed ways of altering the levee system to restore some of the natural wetland-building ability of the Mississippi, this is among the only large-scale experiments to demonstrate how these modifications might function.
The study was headed by Douglas Jerolmack, an assistant professor in the Department of Earth and Environmental Science at Penn, and Federico Falcini, who at the time was a postdoctoral researcher in Jerolmack's lab and is now at the Consiglio Nazionale delle Ricerche in Rome. Benjamin Horton, an associate professor in the Earth and Environmental Science Department; Nicole Khan, a doctoral student in Horton's lab; and Alessandro Salusti, a visiting undergraduate researcher also contributed to the work. The Penn researchers worked with Rosalia Santoleri, Simone Colella and Gianluca Volpe of the Consiglio Nazionale delle Ricerche; Leonardo Macelloni, Carol B. Lutken and Marco D'Emidio of the University of Mississippi; Karen L. McKee of the U.S. Geological Survey; and Chunyan Li of Louisiana State University.
The 2011 floods broke records across several states, damaged homes and crops and took several lives. The destruction was reduced, however, because the Army Corps of Engineers opened the Morganza Spillway, a river-control structure, for the first time since 1973 to divert water off of the Mississippi into the Atchafalaya River Basin. This action involved the deliberate flooding of more than 12,000 square kilometers and alleviated pressures on downstream levees and spared Baton Rouge and New Orleans from the worst of the flood.
For the Penn researchers, the opening of the Morganza Spillway provided a rare look into how floods along the Mississippi may have occurred before engineered structures were put in place to control the river's flow.
"While this was catastrophic to the people living in the Atchafalaya Basin, it was also simulating ? accidentally ? the sort of natural flood that used to happen all the time," Jerolmack said. "We were interested in how this sort of natural flooding scenario would differ from the controlled floods contained within levees that we normally see in the Delta."
To capitalize on this opportunity, the team began examining satellite images showing the plume of sediment-laden water emerging from the mouths of the Atchafalaya and Mississippi rivers. They calculated the amount of sediment in the plumes for the duration of the flood based on the ocean color in the satellite images and calibrated these data to field samples taken from a boat in the Gulf of Mexico. Their boat sampling also allowed them to gather data on the speed of the plume and the extent to which river water mixed with ocean water.
From the satellite images, researchers observed that the Mississippi River unleashed a jet of water into the ocean. In contrast, the waters diverted into the Atchafalaya Basin spread out over 100 kilometers of coastline, the sediment lingering in a wide swampy area.
"You have this intentionally flooded Atchafalaya Basin and when those flood waters hit the coast they were trapped there for a month, where tides and waves could bring them back on shore," Jerolmack said. "Whereas in the Mississippi channel, where all the waters were totally leveed, you could see from satellite images this sort of fire hose of water that pushed the sediment from the river far off shore."
The researchers used a helicopter to travel to 45 sites across the two basins, where they sampled sediment cores. They observed that sediment deposited to a greater extent in the Atchafalaya Basin than in any area of the Mississippi Basin wetlands, even though the Mississippi River plume contained more total sediment.
The recently deposited sediments lacked plant roots and were different in color and consistency from the older sediments. Laboratory analyses of diatoms, or photosynthetic algae, also revealed another signature of newly deposited sediments: They contained a higher proportion of round diatoms to rod-shaped diatoms than did deeper layers of sediment.
"This diatom ratio can now serve as an indicator for freshwater floods," Horton said. "With longer sediment cores and analyses of the diatoms, we may be able to work out how many floods have occurred, how much sediment they deposited and what their recurrence intervals were."
Taken together, the researchers' findings offer a large-scale demonstration of how flooding over the Atchafalaya's wide basin built up sediment in wetland areas, compared to the more-focused plume of water from the Mississippi River. Jerolmack says this "natural experiment" provides a convincing and reliable way of gathering data and information about how changes in the Mississippi's levees and control structures could help restore marsh in other areas of the Delta.
"One of the things that we found here is that the Atchafalaya, which is this wide, slow plume, actually produced a lot of sedimentation over a broad area," Jerolmack said. "We think that what the Atchafalaya is showing us on a field scale is that this is the sort of diversion that you would need in order to create effective sedimentation and marsh building."
###
University of Pennsylvania: http://www.upenn.edu/pennnews
Thanks to University of Pennsylvania for this article.
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Britain nixes extradition of NASA hacker Gary McKinnon to US
Gary McKinnon, a British citizen, is accused of breaking into nearly 100 US military and NASA computers, looking for photos of UFOs.
Computer expert Gary McKinnon poses after arriving at the High Court in London in this January 2009 file photo.
Andrew Winning/Reuters/File
EnlargeThe British government today announced that Gary McKinnon, a British hacker with a condition that has been diagnosed as Asperger's syndrome, will not be extradited to the United States. But while the decision is nominally about his human rights, it may also be a byproduct of a longstanding debate over the US-Britain extradition treaty, which British critics say is weighted too much in favor of US interests.
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Arthur Bright is the Europe Editor at The Christian Science Monitor.? He has worked for the Monitor in various capacities since 2004, including as the Online News Editor and a regular contributor to the Monitor's Terrorism & Security blog.? He is also a licensed Massachusetts attorney.
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British Home Secretary Theresa May today told the House of Commons that she had withdrawn the extradition order against Mr. McKinnon after determining that extraditing him would violate his human rights, BBC News reports.
Mr McKinnon is accused of serious crimes. But there is also no doubt that he is seriously ill. He has Asperger's syndrome, and suffers from depressive illness. The legal question before me is now whether the extent of that illness is sufficient to preclude extradition.
After careful consideration of all of the relevant material, I have concluded that Mr McKinnon's extradition would give rise to such a high risk of him ending his life that a decision to extradite would be incompatible with Mr McKinnon's human rights.
Ms. May said that it would now be up to the director of public prosecutions to determine whether McKinnon would face charges in Britain.
McKinnon is accused of breaking into nearly 100 NASA and US military computers between 2001 and 2002, causing hundreds of thousands of dollars in damage, and is charged in Virginia and New Jersey on eight counts of computer fraud. Lawyers for McKinnon said that he was merely looking for evidence of UFOs and did not have any criminal intent. The Daily Telegraph reported in 2009 that McKinnon's supporters say he is being made a scapegoat for US failures to secure its computers, which McKinnon has called "ridiculously easy" to hack.
US lawyer David Rivkin, an adviser to the Reagan and Bush administrations, told the BBC that the decision to deny extradition for McKinnon?on health grounds was "laughable" and that "under that logic, anybody who claims some kind of physical or mental problem can commit crimes with impunity and get away with it." British solicitor Edward Fitzgerald told The Guardian that he felt McKinnon's case turned on his alleged high suicide risk.
While May said in her statement that the "sole issue" before her was McKinnon's human rights, her decision not to extradite McKinnon comes amid public debate in Britain over the country's extradition responsibilities, particularly those in its treaty with the US.
Critics say that the US-Britain treaty, enacted in 2003, favors US interests over British ones. The Guardian's Owen Bowcott points out that between January 2004 and October 2012, 92 people have been extradited from Britain to the US, while only 43 have made the opposite trip. He also notes, however, that between January 2004 and December 2011, Britain made 57 requests for extradition and 40 extraditions took place, while the US made 134 requests during that same period, and only 75 extraditions occurred.
In announcing her decision on McKinnon, May called the US-Britain treaty "broadly sound," reports The Guardian.? But May added that she would introduce a new "forum bar" to the extradition process, which would allow a court to deny extradition if it deemed a British trial more fair to the accused than a trial overseas, reports The Guardian. May also said that she planned to end the home secretary's ability to deny extradition on human rights grounds ? the very grounds she used to bar McKinnon's extradition ? arguing that such discretion would be better placed in the courts than in the government's hands.?
May's proposed reforms to the US extradition process are just part of a broader overhaul by the British government to its approach to international justice. The Washington Post reports that May also announced that Britain would be?opting out of more than 100 criminal justice measures?with the European Union and reinstating selected measures. The Post writes that the move "appeared aimed at satisfying Conservative lawmakers who have grown increasingly skeptical of the E.U.?s reach in British affairs."
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Donations Pour In For Cancer Survivor Whose Father Died Suddenly
SANTA ANA (CBSLA.com)?? Donations continue to pour in for a 5th grade Hazard Elementary School student who has to bury her father this week after losing both her right leg and her mother to cancer.
More than $2,000 have been contributed to the Jackie Angeles Fund by Hazard Elementary School families. Another $3,000 was sent in to the fund set up for Jackie at Orange County Federal Credit Union.
?We had people that wanted to donate all types of things. We had an organization, a woman?s organization, that wanted to donate a Thanksgiving dinner. A field trip, somebody wanted to donate a gift, a prosthetic right leg for Jackie,? Principal Nanci Cole said.
Jackie says she dreams of one day being a doctor.
To donate, make your check out to Jacqueline Angeles and send it to the Orange County?s Credit Union, PO Box 11777, Santa Ana, CA 92711, Account #92603984, Routing #322281989.
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iPhone passcodes
I went for a walk around the park with Buddy tonight as I always do. But as I was walking, I saw something blue glowing in the grass. I got closer and realized it was someone?s iPhone. I had just missed a call to this stranger?s phone. I picked it up and unlocked it so I could email the owner that I had their phone. However, it was passcode protected. So I had to wait for a call to come through.
There needs to be a button that you can press that circumvents passcode protection that creates an email to the owner saying you have their phone. It?s interesting that security presumes that an unauthorized user only wants to do harm, not good. But I?d bet that 95% of us, if not more, would return a found iPhone if we had the opportunity. I get it though?security is only as good as its weakest link.
The story has a happy ending. He got his phone back about 20 minutes after I found it.?
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