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Duane Sharrock

Medical devices powered by the ear itself - MIT News Office - 1 views

www.mit.edu/...biological-battery-1107.html

medical devices powered ear mit news battery

shared by Duane Sharrock on 09 Nov 12 - No Cached
  • Health Sciences and Technology (HST) demonstrate for the first time that this battery could power implantable electronic devices without impairing hearing.
  • The devices could monitor biological activity in the ears of people with hearing or balance impairments, or responses to therapies. Eventually, they might even deliver therapies themselves
  • “In the past, people have thought that the space where the high potential is located is inaccessible for implantable devices, because potentially it’s very dangerous if you encroach on it,” Stankovic says. “We have known for 60 years that this battery exists and that it’s really important for normal hearing, but nobody has attempted to use this battery to power useful electronics.”
  • ...5 more annotations...
  • The ear converts a mechanical force — the vibration of the eardrum — into an electrochemical signal that can be processed by the brain; the biological battery is the source of that signal’s current. Located in the part of the ear called the cochlea, the battery chamber is divided by a membrane, some of whose cells are specialized to pump ions. An imbalance of potassium and sodium ions on opposite sides of the membrane, together with the particular arrangement of the pumps, creates an electrical voltage.
  • Low-power chips, however, are precisely the area of expertise of Anantha Chandrakasan’s group at MTL
  • The frequency of the signal was thus itself an indication of the electrochemical properties of the inner ear.
  • in cochlear implants, diagnostics and implantable hearing aids. “The fact that you can generate the power for a low voltage from the cochlea itself raises the possibility of using that as a power source to drive a cochlear implant,” Megerian says. “Imagine if we were able to measure that voltage in various disease states. There would potentially be a diagnostic algorithm for aberrations in that electrical output.”
  • “I’m not ready to say that the present iteration of this technology is ready,” Megerian cautions. But he adds that, “If we could tap into the natural power source of the cochlea, it could potentially be a driver behind the amplification technology of the future.”
  • Duane Sharrock on 09 Nov 12
     
    "For the first time, researchers power an implantable electronic device using an electrical potential - a natural battery - deep in the inner ear."
  • Duane Sharrock on 09 Nov 12
     
    "All of D-Lab's classes assess the needs of people in less-privileged communities around the world, examining innovations in technology, education or communications that might address those needs. The classes then seek ways to spread word of these solutions - and in some cases, to spur the creation of organizations to help disseminate them. Specific projects have focused on improved wheelchairs and prosthetics; water and sanitation systems; and recycling waste to produce useful products, including charcoal fuel made from agricultural waste."
Duane Sharrock

Students Learn Better With Star Trek-Style Touchscreen Desks | Popular Science - 3 views

www.popsci.com/...multi-user-touchscreen-tablets

touchscreen science students desks

shared by Duane Sharrock on 28 Nov 12 - No Cached
  • A UK study involving roughly 400 students, mostly aged 8-10 years, and a new generation of multi-touch, multi-user, computerized desktop surfaces is showing that over the last three years the technology has appreciably boosted students’ math skills compared to peers learning the same material via the conventional paper-and-pencil method. How? Through collaboration, mostly, as well as by giving teachers better tools by which to micromanage individual students who need some extra instruction while allowing the rest of the class to continue moving forward.
  • the researchers have concluded that these new touchscreen desks boost both fluency and flexibility--the critical thinking skills that allow students to solve complex problems not simply through knowing formulas and devices, but by being able to figure out what the real problem is and the most effective means of stripping it down and solving it.
  • This kind of stuff can be really hard to quantify,
  • ...1 more annotation...
  • It’s going to take a lot more time, research, and money
  • Duane Sharrock on 28 Nov 12
     
    UK study involving roughly 400 students, mostly aged 8-10 years, and a new generation of multi-touch, multi-user, computerized desktop surfaces is showing that over the last three years the technology has appreciably boosted students' math skills compared to peers learning the same material via the conventional paper-and-pencil method.
  • Duane Sharrock on 28 Nov 12
     
    UK study involving roughly 400 students, mostly aged 8-10 years, and a new generation of multi-touch, multi-user, computerized desktop surfaces is showing that over the last three years the technology has appreciably boosted students' math skills compared to peers learning the same material via the conventional paper-and-pencil method.
LUCIAN DUMA

My favorite ( top 10 ) romanian #edtech #startup tools at #howtoweb 2012 @web20educatio... - 2 views

web20education.bo.lt/top10roedtools4howtoweb

shared by LUCIAN DUMA on 04 Nov 12 - No Cached
  • LUCIAN DUMA on 04 Nov 12
     
    "Curated by Lucian, http://bit.ly/LucianCurator who really want to implement Curation Restart Education Project http://bit.ly/credproject . For more Like https://www.facebook.com/CurationRestartEducationProject and follow http://twitter.com/web20education"
LUCIAN DUMA

@LucianeCurator wish you all a Blessed Christmas and offer you a #Curation #ChristmasTr... - 4 views

teacherluciandumaweb20.blogspot.ro/...ator-wish-you-all-blessed.html

eltchat ntchat cpchat ukedchat via:packrati.us learntalk curation edchat socialmedia pln roedchat

shared by LUCIAN DUMA on 26 Dec 12 - No Cached
  • LUCIAN DUMA on 26 Dec 12
     
    wish you all a Blessed Christmas and offer you a #Curation #ChristmasTree I, Duma Cornel Lucian am happy finalist in Ipad eLearning Competition by eFrontLearning https://bit.ly/LucianeCuratorpleaseyoutoshareandrtcurationguestarticle and please help me to win a Ipad reading my article : Top 10 Startup Social Media Curation Tools for Social Learning in the Workpace ( Glogster EDU Symbaloo.com Scoop.itLearnist Pinterest MentorMob Mightybell springpad Zeen @so.cl . If you like the article after you read it, down of the page are social media sharing buttons ( facebook like , tweeet , share using social media channels )
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