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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

Enterprise Efficiency - Pablo Valerio - Finally, Unbreakable Message Encryption - 1 views

www.enterpriseefficiency.com/author.asp

enterprise encryption

shared by Duane Sharrock on 06 Nov 12 - No Cached
  • Duane Sharrock on 06 Nov 12
     
    A new concept is starting to appear in encryption services for data and messaging: zero knowledge. Providers of such services claim that they do not know who you are, and that they never store the encryption key anywhere outside of your device. One such service from FoxyFone of Switzerland (a country famous for bank security and secrecy) is now available on the Apple App Store for the iPhone, iPod Touch, and iPad. The app, Foxygram, lets the user encrypt data on the device, including contacts, email, pictures, and video, with 256-bit AES security.
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"
Dwayne Abrahams

Ramven Mobile Web Apps - 4 views

apps.ramven.com

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shared by Dwayne Abrahams on 03 Nov 12 - No Cached
  • Dwayne Abrahams on 03 Nov 12
     
    Ramven has released Mobile Web Apps for informative and productivity. Our Mobile Web Apps include financial calculators, unit converters and many more categories. These Mobile Web Apps are light weight and support all major mobile, tablet, smart phone and desktop web browsers.
Dwayne Abrahams

Research - 4 views

www.footsteps2brilliance.com

research iPad games footsteps vocabulary vocab ebooks education resources web2.0 technology learning interactive

shared by Dwayne Abrahams on 30 Oct 12 - No Cached
  • Dwayne Abrahams on 30 Oct 12
     
    "Footsteps2Brilliance, Inc.™'s Academic Language Program for Students (ALPS) delivers a robust library of stimulating ebooks and educational games to parents, children and teachers anywhere/anytime through innovative mobile gaming technology. Developed by educational experts usingthe latest research on cognitive development, ALPS provides young learners with 1,000 essential vocabulary words through interactive eBooks that are sure to engage today's digital students whether at school or home."
Lisa Winebrenner

CyberCIEGE Syllabus - 6 views

cisr.nps.edu/...CyberCIEGE%20Syllabus.html

cyberciege cyber security information assurance concepts network security notional syllabus

shared by Lisa Winebrenner on 28 Oct 12 - No Cached
  • Lisa Winebrenner on 28 Oct 12
     
    The seven modules identified below are a notional organization of  material contained in typical cyber security courses.  This syllabus does not attempt to cover all such material, rather the purpose is to identify which elements of CyberCIEGE could be deployed within selected instruction modules. 
Professional Learning Board

Teacher Resources, Tools & Giveaways for the week ( Oct 6 - Oct 13, 2012) - 9 views

k12teacherstaffdevelopment.com/...for-the-week-oct-6-oct-13-2012

web web2.0 tools free

shared by Professional Learning Board on 21 Oct 12 - No Cached
  • Professional Learning Board on 21 Oct 12
     
    TOOLS Sploder Make your own educational games online. Remember the Milk Manage activities and tasks. Dabbleboard A virtual white board to create, collaborate and share presentations, homework assignments or study sessions.
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