News By Tag
News By Place
NAMSR News: Next-generation hearing aids emulate fly's ability to pinpoint sound
Engineers have found a way to mimic the fly's super-hearing in a tiny device that does not require a bulky battery.
The engineers, from the Cockrell School of Engineering at the University of Texas at Austin, say the new device could be used in a new generation of hypersensitive hearing aids that use intelligent microphones to select only those sounds or conversations that the wearer wants to hear.
Neal Hall, an assistant professor in the Cockrell School's Department of Electrical and Computer Engineering, and his team of graduate students, drew their inspiration from pioneering work by Ronald Miles at Binghamton University, NY, and Ronald Hoy at Cornell University, Ithaca, NY.
They were the first to describe the technological potential of emulating the super-hearing mechanism of the yellow-colored parasitoid flyOrmia ochracea, which stalks and locates male field crickets from their chirps and lays live larvae on and around them.
The fly can locate the cricket with remarkable accuracy because it has a sophisticated sound processing mechanism that determines the direction of the sound within an angle of 2 degrees.
Using the fly's super-evolved hearing structure as a model, Prof. Hall and colleagues made a tiny pressure-sensing device out of silicon. With a span of only 2 mm, the device is nearly the same size as the fly's hearing organ.
Unlike many insects, the reason humans and other mammals can pinpoint the source of a sound is because we have a much larger distance between our ears. The sound processing mechanism in our brains uses the time difference in the arrival of the sound at the two ears to locate the source.
To replicate the fly's hearing mechanism, the team made a flexible beam incorporating piezoelectric materials that allowed them to use the flexing and rotation of the beam as a way to measure sound pressure and pressure gradient at the same time.
CANDIDATES WHO WANT TO BREAK INTO MEDICAL SALES:
RMSR® Medical Sales Certification offered by the National Association of Medical Sales Representatives is designed for entry level medical device sales reps. The course covers a wide array of topics pertaining to industry knowledge that candidates need to acquire before applying to medical sales positions.
The course and training helps to develop the industry skills, maximizing the candidates’ potential and goals, as well as making them feel valued and stimulated in their role when communicating with members of the medical community. By an applicant acquiring medical sales training and a RMSR Certification, it puts him/her in a position of strength and qualifies them for medical sales jobs. Medical knowledge is key in this industry and when communicating with doctors, surgeons, and nurses etc.
It is extremely important for representatives to use key terminology pertaining to the medical product he/she will be promoting. The only way to succeed in this industry is to garner actual sales. Doctors and Surgeons will not acknowledge a Sales Rep who is not proficient in essential medical terminology, knowledgeable of medical devices/equipment and the anatomy. For those lacking a solid sales background the RMSR course covers knowledge of medical selling techniques and regulation such as Effective Territory Management, Effective Networking, Medical Sales Ethical & Regulatory Guidelines and more.
The National Association of Medical Sales Representative™
For more information on the NAMSR or the RMSR certification visit www.medicalsalescareer.com or call 800-313-9198