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Duane Sharrock

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

  • 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.”
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  • 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.”
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    "For the first time, researchers power an implantable electronic device using an electrical potential - a natural battery - deep in the inner ear."
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    "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."
Jerry Swiatek

Noteflight - Sign In - 2 views

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    We built Noteflight because we looked at where software is today, and saw that applications for writing music were stuck in the past. We wanted to accomplish a few important goals: Make it easy to create and share written music online. People who make music -- amateurs and professionals, students and teachers -- want to share that music with others, sooner or later. But most software for working with notated music treats the Internet as an afterthought: it's geared to saving your music on your own computer's hard disk, not to sharing your music with other people. It's painful to share musical scores online today, and as software inventors, we knew how much better it could be. People expect to be able to do their creative work wherever they go, and a crop of new browser-based applications make it incredibly easy to create and publish word-processing documents or spreadsheets online. We feel musical documents should be just as accessible. Empower developers to build a new world of musical and educational applications. Applications today should be not only powerful tools, but building blocks that can be combined in ways that their creators have never foreseen. A truly powerful musical application should be extensible without having to open it up and change the code. Adding new instruments and symbols, or embedding in a page and building new kinds of connections with other content -- all of these things should be possible. A great tool lets creative people not only use its built-in capabilities, but extend them and freely reorganize them in new ways. As Bertrand Meyer, a pioneer of software thinking, once put it: "Real systems have no top". Encourage a vibrant community of users by keeping the basics free. Music notation software vendors continue to charge high prices for boxed software, CD and DVD distribution media, and printed manuals. Then once you buy something, you're basically stuck with it until the next major upgrade cycle comes around, at which point you pa
Tom julick

Mini Handle USB Keyboard Vacuum Cleaner - 0 views

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    This Dust-free PC Desktop Keyboard USB Vacuum Cleaner works great in removing cigarette ash, dust, dirt from keyboard, desktop, or monitor. USB Powered Vacuum Cleaner with stretch USB cable is more convenient for use, requiring no external power source, just plugs straight into any USB port with this Keyboard Hoover.
Allison Kipta

The Tower and The Cloud | EDUCAUSE - 0 views

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    The emergence of the networked information economy is unleashing two powerful forces. On one hand, easy access to high-speed networks is empowering individuals. People can now discover and consume information resources and services globally from their homes. Further, new social computing approaches are inviting people to share in the creation and edification of information on the Internet. Empowerment of the individual-or consumerization-is reducing the individual's reliance on traditional brick-and-mortar institutions in favor of new and emerging virtual ones. Second, ubiquitous access to high-speed networks along with network standards, open standards and content, and techniques for virtualizing hardware, software, and services is making it possible to leverage scale economies in unprecedented ways. What appears to be emerging is industrial-scale computing-a standardized infrastructure for delivering computing power, network bandwidth, data storage and protection, and services. Consumerization and industrialization beg the question "Is this the end of the middle?"; that is, what will be the role of "enterprise" IT in the future? Indeed, the bigger question is what will become of all of our intermediating institutions? This volume examines the impact of IT on higher education and on the IT organization in higher education.
Professional Learning Board

WorldWide Telescope - 0 views

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    Beautiful site and looks like the software is super easy to use to virtually look at anything in space. Big wow factor. Only drawback is that it takes some hefty computing power to run the software. For example, while the minimum RAM is 1 GB, they recommend 2 GB AND while 1 GB minimum hard drive is okay, they suggest 10GB. Now for most people, only the RAM will be the issue. However, it is so cool, I'd love to run out and get a PC with the power to run this application.
LUCIAN DUMA

BLOGGING USING WEB 2.0 AND SOCIAL MEDIA IN EDUCATION IN XXI CENTURY: Building a powerfu... - 15 views

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    Building a powerful #PLN #edchat #iste using gr8 #edtech20 #edtools in XXI Century Education Part 2 #aplanet . Pls add comments , share and retweet 
Jeff Johnson

Power of storytelling by Raf Stevens on Prezi - 24 views

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    Power of storytelling - Prezi is simple: You Write, Zoom, Arrange.Using these simple means, you can express many things - with great impact.Here are some basic examples such as timelines, TOC, Zen likes.
Jeff Johnson

StatPlus:mac (AnalystSoft) - 0 views

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    Perform statistical analysis on a Mac in the familiar environment. Turn Microsoft Excel into a powerful statistical package with StatPlus:mac. Stop wasting time learning new tools and perform complex statistical analysis right away!
Amy Bogenschuetz

Powerful Learning Practice - 21 views

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    Here you'll find thoughts on change, learning, 21st Century teaching, and all the latest updates on Powerful Learning Practice and what we're doing.
LUCIAN DUMA

#edchat Building a powerful #PLN using gr8 #edtech20 tools in XXI Century Education Part I - 10 views

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    #edchat Building a powerful #PLN using gr8 #edtech20 tools in XXI Century Education Part I
LUCIAN DUMA

Microsoft news and personal reflections after Innovative Education Forum in Education 2012 - 3 views

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    If you want to discover the power of Curation, Follow https://twitter.com/#!/web20education
LUCIAN DUMA

gr8 tools to unelash the power of your documents #edtech20 #pln - 8 views

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    You can also subscribe to 1st monthly Curation newsletter http://bitly.com/edtech20newsteller
Fred Delventhal

VolunteerSpot - Doing Good Just Got Easier! - 5 views

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    Coordinate parents and volunteers the fast, easy way with free online sign up forms and volunteer scheduling. At VolunteerSpot, we believe that volunteers should be rewarded for stepping forward and sharing their time and talents with those in need. All too often, volunteering means putting up with a certain amount of hassle or frustration - whether that is late night emails, reply-all messages, reminder phone calls, or searching for a parking space. Our sponsors enable us to provide FREE tools that simplify volunteering powering your good work in schools and clubs, in your congregation and neighborhoods. We can't find you a parking place, but with VolunteerSpot, DOING GOOD just got easier!
Jeff Johnson

Canvastic dot NET - 0 views

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    The desktop version of Canvastic is a fantastic student-focused graphics/text publishing tool for K-8. It features easy to understand tools and options with a clear, clean interface. There are no "toy" features that waste the students' time. Canvastic presents the perfect interface for any user by adjusting automatically. No other educational software does that. Packed with dozens of new user-requested features, refinements, and fixes, Canvastic v3.5 is even more flexible, powerful, and easy to use. Teachers have expanded options to customize the application to meet students' needs. It has the best spell checking feature for students ever, transparent color choices and more.
Jeff Johnson

ProScope HR USB MicroScope - 0 views

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    The ProScope HR brings unprecedented flexibility and excitement to the learning process. Gone are the frustrations of conventional microscopes. Finally, the teacher and student can focus on what is important. Encased in high-impact plastic, The ProScope HR's rugged construction and high-quality components are sturdy enough for a crime scene or a K-12 classroom. Interchangeable lenses provide The ProScope HR with tremendous versatility. With the 0-10X lens, The ProScope HR becomes a high-quality video camera. Magnification can be increased to a startling 200X power in a matter of seconds. The lens mount has an industry-standard C-Mount option that will accept third-party lenses.
Sheryl A. McCoy

widgenie - Home - 0 views

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    Create powerful visualizations of charts and graphs from a variety of sources, and easily share your widgenie with the world.
Allison Kipta

Google Apps Training - 0 views

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    "Google Apps brings together essential services to help your business, school, group or family communicate and collaborate more effectively. These services are powerful, easy to set up, require little-to-no maintenance, and are available for free. Everything is unified by the Start Page, a central place for you and other users to preview your inboxes and calendars, access essential content, and search the web."
Jeff Johnson

Compact camera reviews - Times Online - 0 views

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    Six innocuous cameras, each packing a high-tech secret. But are the hidden powers worth seeking?
Fred Delventhal

Atmosphir - Free Video Game / Creation Tool for Mac and PC - 0 views

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    Atmosphir is a free video game / creation tool for Mac & PC. Design mode lets you create enormous 3D platforming levels filled with fun gameplay elements like power-ups and fireballs, while Play mode lets you explore through the thousands of diverse user-created challenges being uploaded every day.
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