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Student Loans for Kindergarten?! ? Forbes | Financial News | Forex ...
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Oscillating gel acts like artificial skin, giving robots potential ability to 'feel'
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Public release date: 29-Mar-2012[ | E-mail |
Share ] Contact: B. Rose Huber
rhuber@pitt.edu
412-624-4356
University of Pittsburgh
Pitt and MIT researchers accomplish first demonstration of oscillating gels that can be 'revived' by mechanical pressure
PITTSBURGHSooner than later, robots may have the ability to "feel." In a paper published online March 26 in Advanced Functional Materials, a team of researchers from the University of Pittsburgh and the Massachusetts Institute of Technology (MIT) demonstrated that a nonoscillating gel can be resuscitated in a fashion similar to a medical cardiopulmonary resuscitation. These findings pave the way for the development of a wide range of new applications that sense mechanical stimuli and respond chemicallya natural phenomenon few materials have been able to mimic.
A team of researchers at Pitt made predictions regarding the behavior of Belousov-Zhabotinsky (BZ) gel, a material that was first fabricated in the late 1990s and shown to pulsate in the absence of any external stimuli. In fact, under certain conditions, the gel sitting in a petri dish resembles a beating heart.
Along with her colleagues, Anna Balazs, Distinguished Professor of Chemical and Petroleum Engineering in Pitt's Swanson School of Engineering, predicted that BZ gel not previously oscillating could be re-excited by mechanical pressure. The prediction was actualized by MIT researchers, who proved that chemical oscillations can be triggered by mechanically compressing the BZ gel beyond a critical stress. A video from the MIT group showing this unique behavior can be accessed at http://vvgroup.scripts.mit.edu/WP/?p=1078
"Think of it like human skin, which can provide signals to the brain that something on the body is deformed or hurt," says Balazs. "This gel has numerous far-reaching applications, such as artificial skin that could be sensorya holy grail in robotics."
Balazs says the gel could serve as a small-scale pressure sensor for different vehicles or instruments to see whether they'd been bumped, providing diagnostics for the impact on surfaces. This sort of developmentand materials like BZ gelare things Balazs has been interested in since childhood.
"My mother would often tease me when I was young, saying I was like a mimosa plant shy and bashful," says Balazs. "As a result, I became fascinated with the plant and its unique hide-and-seek qualitiesthe plant leaves fold inward and droop when touched or shaken, reopening just minutes later. I knew there had to be a scientific application regarding touch, which led me to studies like this in mechanical and chemical energy."
Also on Balazs's research team were Olga Kuksenok, research associate professor, and Victor Yashin, visiting research assistant professor, both in Pitt's Swanson School of Engineering. At MIT, the work was performed by Krystyn Van Vliet, Paul M. Cook Career Development Associate Professor of Material Sciences and Engineering, and graduate student Irene Chen. (Group Web site: http://vvgroup.scripts.mit.edu/WP/).
###
Funding for this research was provided by the National Science Foundation and the U.S. Army.
[ | E-mail | 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.
Public release date: 29-Mar-2012[ | E-mail |
Share ] Contact: B. Rose Huber
rhuber@pitt.edu
412-624-4356
University of Pittsburgh
Pitt and MIT researchers accomplish first demonstration of oscillating gels that can be 'revived' by mechanical pressure
PITTSBURGHSooner than later, robots may have the ability to "feel." In a paper published online March 26 in Advanced Functional Materials, a team of researchers from the University of Pittsburgh and the Massachusetts Institute of Technology (MIT) demonstrated that a nonoscillating gel can be resuscitated in a fashion similar to a medical cardiopulmonary resuscitation. These findings pave the way for the development of a wide range of new applications that sense mechanical stimuli and respond chemicallya natural phenomenon few materials have been able to mimic.
A team of researchers at Pitt made predictions regarding the behavior of Belousov-Zhabotinsky (BZ) gel, a material that was first fabricated in the late 1990s and shown to pulsate in the absence of any external stimuli. In fact, under certain conditions, the gel sitting in a petri dish resembles a beating heart.
Along with her colleagues, Anna Balazs, Distinguished Professor of Chemical and Petroleum Engineering in Pitt's Swanson School of Engineering, predicted that BZ gel not previously oscillating could be re-excited by mechanical pressure. The prediction was actualized by MIT researchers, who proved that chemical oscillations can be triggered by mechanically compressing the BZ gel beyond a critical stress. A video from the MIT group showing this unique behavior can be accessed at http://vvgroup.scripts.mit.edu/WP/?p=1078
"Think of it like human skin, which can provide signals to the brain that something on the body is deformed or hurt," says Balazs. "This gel has numerous far-reaching applications, such as artificial skin that could be sensorya holy grail in robotics."
Balazs says the gel could serve as a small-scale pressure sensor for different vehicles or instruments to see whether they'd been bumped, providing diagnostics for the impact on surfaces. This sort of developmentand materials like BZ gelare things Balazs has been interested in since childhood.
"My mother would often tease me when I was young, saying I was like a mimosa plant shy and bashful," says Balazs. "As a result, I became fascinated with the plant and its unique hide-and-seek qualitiesthe plant leaves fold inward and droop when touched or shaken, reopening just minutes later. I knew there had to be a scientific application regarding touch, which led me to studies like this in mechanical and chemical energy."
Also on Balazs's research team were Olga Kuksenok, research associate professor, and Victor Yashin, visiting research assistant professor, both in Pitt's Swanson School of Engineering. At MIT, the work was performed by Krystyn Van Vliet, Paul M. Cook Career Development Associate Professor of Material Sciences and Engineering, and graduate student Irene Chen. (Group Web site: http://vvgroup.scripts.mit.edu/WP/).
###
Funding for this research was provided by the National Science Foundation and the U.S. Army.
[ | E-mail | 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/2012-03/uop-oga032912.php
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Sunni rulers largely shun Iraq at Arab summit
Iraqi Prime Minister Nouri al-Maliki, center, attends the Arab League summit in Baghdad, Iraq, Thursday, March, 29, 2012. The annual Arab summit meeting opened in the Iraqi capital Baghdad on Thursday with only 10 of the leaders of the 22-member Arab League in attendance and amid a growing rift between Arab countries over how far they should go to end the one-year conflict in Syria. (AP Photo/Karim Kadim)
Iraqi Prime Minister Nouri al-Maliki, center, attends the Arab League summit in Baghdad, Iraq, Thursday, March, 29, 2012. The annual Arab summit meeting opened in the Iraqi capital Baghdad on Thursday with only 10 of the leaders of the 22-member Arab League in attendance and amid a growing rift between Arab countries over how far they should go to end the one-year conflict in Syria. (AP Photo/Karim Kadim)
The empty seat of the Syrian President Bashar Assad is seen during the Arab League summit in Baghdad, Iraq, Thursday, March, 29, 2012. The annual Arab summit meeting opened in the Iraqi capital Baghdad on Thursday with only 10 of the leaders of the 22-member Arab League in attendance and amid a growing rift between Arab countries over how far they should go to end the one-year conflict in Syria. (AP Photo/Karim Kadim)
Libyan Transitional National Council chairman Mustafa Abdul-Jalil, center, attends the Arab League summit in Baghdad, Iraq, Thursday, March, 29, 2012. The annual Arab summit meeting opened in the Iraqi capital Baghdad on Thursday with only 10 of the leaders of the 22-member Arab League in attendance and amid a growing rift between Arab countries over how far they should go to end the one-year conflict in Syria. (AP Photo/Karim Kadim)
Arab leaders pose for a group photo ahead of the opening session of the Arab League summit in Baghdad, Iraq, Thursday, March, 29, 2012. The annual Arab summit meeting opened in the Iraqi capital Baghdad on Thursday with only 10 of the leaders of the 22-member Arab League in attendance and amid a growing rift between Arab countries over how far they should go to end the one-year conflict in Syria. (AP Photo/Karim Kadim)
Kuwait's emir, Sheik Sabah Al Ahmad Al Sabah, center, attends the Arab League summit in Baghdad, Iraq, Thursday, March, 29, 2012. The annual Arab summit meeting opened in the Iraqi capital Baghdad on Thursday with only 10 of the leaders of the 22-member Arab League in attendance and amid a growing rift between Arab countries over how far they should go to end the one-year conflict in Syria. (AP Photo/Karim Kadim)
BAGHDAD (AP) ? Sunni Muslim rulers largely shunned an Arab League summit hosted by Shiite-led Iraq on Thursday, illustrating how powerfully the sectarian split and the rivalry with Iran define Middle Eastern politics in the era of the Arab Spring.
The crisis in Syria is the epicenter of those divisions. The one-day summit closed with a joint call on Syrian President Bashar Assad to stop his bloody crackdown on an uprising seeking his ouster. But the final statement barely papered over the differences among the Arab nations over how to deal with the longest-running regional revolt.
"What disturbs the breeze of our Arab Spring and fills our hearts with sadness is the scenes of slaughter and torture committed by the Syrian regime against our brothers and sisters in Syria," said Mustafa Abdul-Jalil, leader of Libya's National Transitional Council.
In a snub to Iraq, only 10 heads of state from the Arab League's 22 members attended, with the rest sending lower-level officials. Especially notable were the absences of the rulers of Saudi Arabia, Qatar and most other Gulf countries, as well Morocco and Jordan ? all of them headed by Sunni monarchs who deeply distrust the close ties between Baghdad's Shiite-dominated government and their top regional rival, Iran.
The Gulf countries also see Iraq as too soft on Syria. Saudi Arabia and Qatar have talked of arming Syria's opposition, apparently eager to bring the fall of Assad and break the Sunni-majority country out of its alliance with Iran.
Speaking to the gathering, Iraqi Prime Minister Nouri al-Maliki urged restraint, saying Baghdad opposes any military intervention and citing his country's years of turmoil as an example of what happens when outside forces get involved in national struggles. U.S. forces left Iraq just over 100 days ago after nearly nine years of war and occupation.
"Iraq is afraid of the attempts to militarize the Arab uprisings, because this will deviate them from the right course and push toward the wrong position," al-Maliki said. "Dialogue between the government and the opposition is the right option to solve the crisis."
Iraq's hosting of the annual summit for the first time since 1990 was touted by Baghdad officials as a victory in their efforts to show the country is moving toward stability after years of sectarian fighting that almost tipped the nation into civil war. Thousands of security forces cleared the streets and locked down the capital in one of the quietest weeks in years, although officials said two Katyusha rockets hit near the fortified Green Zone where the summit was held just as diplomats convened. No casualties were reported.
The summit was the first since the wave of Arab Spring uprisings began sweeping the region more than a year ago, targeting its long-ruling strongmen. The 2011 summit was canceled because of the turmoil. There were two new faces at Thursday's collection of heads of state: Libya's Abdul-Jalil, who holds nominal power after the ouster and killing of Moammar Gadhafi, and Tunisia President Moncef Marzouki, a former human rights activist who was elevated after the fall of Zine El Abidine Ben Ali.
The new leaders of Egypt and Yemen ? the other two countries whose rulers fell last year ? did not attend, a reflection of their continuing domestic troubles.
The session was dominated by the uprising in Syria, where the U.N. says more than 9,000 people have been killed in the regime's yearlong crackdown on its political opponents. The regime has sent tanks and troops into Syrian cities and towns, saying the country was under attack from the armed groups.
The conflict has a dangerous sectarian angle ? most in the opposition come from the Sunni majority, while Assad's regime relies on the minority Alawites, an offshoot from Shiism.
Assad has accepted a peace plan put forward by U.N.-Arab League envoy Kofi Annan, which calls for a cease-fire. But the Syrian opposition and many Arab governments are skeptical Assad will implement it, believing he is just playing for time. Assad said Thursday that armed rebels must also commit to a cease-fire.
The summit's final resolution called on Assad's regime to "immediately implement" Annan's proposals. It also said Arab leaders fully support the "legitimate aspirations of the Syrian people to democracy and freedom and their right to determine their future."
U.S. State Department spokesman Mark Toner congratulated Iraq on the summit.
"From what we've seen, (it was) a success. They did talk about Syria and voiced their very strong support for Kofi Annan's efforts," he said. "All indications are that it ... has gone well and that Iraq should be proud of what it's been able to accomplish in recent years. And we believe the hosting of this summit is indicative of its positive role in the region and among the community of nations."
Gulf nations, which have made clear they have little faith in the diplomatic efforts, are already looking at the possibility of moving ahead on their own over Syria. They meet this weekend in Saudi Arabia, and U.S. Secretary of State Hillary Rodham Clinton is planning to attend those talks in Riyadh, which may yield stronger calls for action than those made by the Arab League.
"The Syrian government is required today to listen to the voice of reason and wisdom and stop all kinds of violence," said the emir of Kuwait, Sheik Sabah, the only ruler from the Gulf to attend. He signaled support for an earlier League plan that called on Assad to cede power to his vice president until elections are held. The League had to back down from that after an attempt to win U.N. backing for it was vetoed by Russia and China.
That plan, he said, is the best way "to get out of this crisis and to stop the bloodshed of our brothers and to keep the Syrian country from slipping into a civil war."
The cold shoulder from other Sunni-led monarchies, however, underlined their suspicion about Iraq's Shiite leadership and their conviction that it is too close to the camp of their rival, Iran.
"To be obvious here, these countries have a problem with Iran," said Kuwait delegation member Khalid Al Anteri.
In unusually direct remarks, Qatar's prime minister said a midlevel official was sent to the summit instead of the emir as a "message" protesting what he called Baghdad's sidelining of Iraq's Sunni minority.
"We do not agree with all what goes on in terms of the political process inside Iraq; we believe a particular sect is targeted," Sheik Hamad bin Jassem bin Jabr Al Thani told Al-Jazeera on Wednesday.
The Kuwaiti emir's presence reflected the progress in Baghdad's efforts to rebuild long tense ties with its neighbor since Saddam Hussein's 1990 invasion and seven-month occupation of Kuwait. But despite Baghdad's recent charm offensive to settle legal claims across the region and its dazzling display at the summit where delegates were fed gold-covered dates, Gulf states have little to gain from fully welcoming Iraq into their ranks.
Its lucrative oil supply makes it a strong competitor in the Gulf, and its ongoing insurgency and political instability makes Iraq a risky teammate.
"It's no surprise that the Gulf states did not want to give Iraq the prestige that they would by sending heads of state to the summit," said Crispin B. Hawes, Middle East director of the Eurasia Group, a New York-based risk consultant agency.
"They want Iraq to continue to be a second-rate citizen in the region; they want to keep Iraq inside the box," he said. "They don't want it to be another major regional player."
___
Associated Press writers Qassim Abdul-Zahra, Sameer N. Yacoub and Mazin Yahya in Baghdad and Matthew Lee in Washington contributed to this report.
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Canada's Videotron finally delivers tru2way-based illico TV HD DVRs
Continue reading Canada's Videotron finally delivers tru2way-based illico TV HD DVRs
Canada's Videotron finally delivers tru2way-based illico TV HD DVRs originally appeared on Engadget on Thu, 29 Mar 2012 12:23:00 EDT. Please see our terms for use of feeds.
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Self-Esteem Is Not Just A Personal Matter | Self Improvement Blogs ...
Shallowness is the relationship that you?ve got with yourself, your sense of personal worth. Vanity might subsequently seem like a completely personal issue. However, your self-esteem affects not only your own life, nevertheless it impacts the lives of everybody round you.
Your stage of shallowness affects how you treat others that you interact with or keep away from interaction with. You have got most likely been the sufferer of somebody with low self-esteem yourself. Perhaps a colleague who was making an attempt to impose his or her method on others, a instructor who did his or her best to make your life miserable, or maybe just a grumpy neighbour. The perfect (and worst) example of the detrimental impacts of other people?s low self-esteem is probably when a father or mother with low vanity behaves in a non-loving manner towards his or her children who in turn will grow up with a low shallowness and do the same to other people. Each word that you say to others, every gesture and each action is influenced by your self-esteem. When you?ve got a low shallowness you will usually have a more negative effect on different people.
Your level of vanity is thus obviously not only a personal matter. Compare in your mind a country where all of the political leaders have excessive vanity with a country wherein all the leaders have low self-esteem. If I lived within the nation with low shallowness custom jerseys I?d exhibit for sending all of them on a shallowness course!
Your vanity has larger impression over other people?s lives than your skills in arithmetic, physics, music, history or some other college subject. But self-esteem just isn?t formally taught in schools. Once I was a baby, we had a textbook referred to as ?I?m ok?. Now as an adult I can guess that this ebook was supposed to teach us vanity, however all the students (including me) hated those courses because they had been so boring. The lecturers did not know easy methods to teach self-esteem to younger children. They probably didn?t even perceive why they had been supposed to teach it. Fortunately or unfortunately, these lessons have been very few.
Teachers needs to be skilled in find out how to assist their college students to gain larger self-esteem. There also needs to be vanity trainers in all large firms in order that their employes can continue to develop their self-esteem. This might be an enormous funding to each the colleges and the businesses due to the benefits that higher vanity among the students and employes would bring.
Leaving people to figure out find out how to increase their vanity by themselves is simply too risky. The entire world would benefit if extra individuals learnt how you can develop a excessive self-esteem.
This post is written by Luis Garcia 73
Leon Edward helps people in Personal and Career Growth, leadership Development, Goal Setting, Success, Motivation, Self-Improvement, Happiness, Memory Improvement, Stress Reduction and more through his articles, blog posts and special reports . Join Leon Edwards Awesome Success Free, Get his personal success, development and growth weekly newsletter as well as success classics and tips on attracting success and wealth. Visit his Success-Leadership Library, Articles at http://www.AwesomeSuccess.org Leon Edward also helps people improve IQ, focus, memory, concentration, creativity, speed reading, public speaking , time management and reducing stress. Download his IQ Mind Brain Memory Self-Help library at his website http://www.IQMindBrainLibrary.comLeon Edward helps people improve in Leadership Development, Goal Setting, Success, Motivation, Self-Improvement, Happiness, Memory Improvement, Stress Reduction and more through his articles, blog posts and special reports . Join Leon Edwards Awesome Success Free, Get his personal development training, success and growth weekly newsletter as well as success classics and tips on attracting success and wealth. Visit his Success-Leadership Library, Articles at http://www.AwesomeSuccess.orgYou may also be interested in
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FHS Choir Prepares for ?The Wizard of Oz? : FISD-TV TigerVision ...
March 26, 2012
Filed under Arts & Entertainment
The Frenship High School Choral Program is proud to present the hit Broadway musical, ?The Wizard of Oz,? on May 17, 18, and 19, 2012 in the new Frenship High School Performing Arts Center.?
This production will feature the Texas Tech University Faculty Orchestra and the amazing talents of the award-winning Frenship Choirs.? The lead roles will be played by:
Raeanne Gwin -? Dorothy
Emily Evans ? Glinda the Good Witch/Aunty Em
Maria Pedraza ? Elphaba the Wicked Witch/Mrs. Gultch
Luke Voorhies ? Scarecrow/Hunk
Angelo Condez ? Tinman/Hickory
James Tapley ? Lion/Zeke
Parker Merrill ? The Wizard/Professor Marvel
Brady Holmes ? The Guard of Oz/Uncle Henry
Tickets can be?purchased online at the FHS Choir website: www.frenshiphschoir.com.? The show will begin each night at 7:00pm.? Tickets for lower level seating are $15.00 and tickets for upper level seating are $10.00.
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