In 2009, Stephen Beeby of The University of Southampton led research into utilizing otoacoustic emissions for biometric identification. Devices equipped with a microphone could detect these subsonic emissions and potentially identify an individual, thereby providing access to the device, without the need of a traditional password. It is speculated, however, that colds, medication, trimming one's ear hair, or recording and playing back a signal to the microphone could subvert the identification process.
OAEs are considered to be related to the amplification function of the cochlea. In the absence of external stimulation, the activity of the cochlear amplifier increases, leading to the production of sound. Several lines of evidence suggest that, in mammals, outer hair cells are the elements that enhance cochlear sensitivity and frequency selectivity and hence act as the energy sources for amplification. One theory is that they act to increase the discriminability of signal variations in continuous noise by lowering the masking effect of its cochlear amplification.
In conjunction with audiometric testing, OAE testing can be completed to determine changes in the responses. Studies have found that exposure to noise can cause a decline in OAE responses. In a study, industrial workers who were exposed to 84.5 dBA of noise were compared to workers who were exposed to 53.2 dBA of noise by considering hearing thresholds and OAEs before and after 5 days of work. This study revealed that hearing thresholds and OAE results were significantly lower among the workers who were exposed to higher levels of noise.
Our parents have confidence each day that their child is being taken care of in a loving and respectful environment. We extend the offer to all families to come visit us and see why Children's Playland in Aurora is the perfect home away from home. We know that choosing care for your little one(s) is an important decision and greatly affects the life of your child and your family. We pride ourselves on our warm and loving teachers, phenomenal curriculums and the simple extras that make bringing your child to day care an easy and stress free event.
I must admit I am surprised that with the concept of Nourishing Traditions being about adopting traditional methods of preparing foods as observed in ultra-healthy non-western people groups, I expected the book on baby and child care to promote more traditional and indigenous ways of nurturing (not just nourishing) little ones, such as babywearing and co-sleeping. I guess we always have The Continuum Concept by Jean Liedloff for that!
An otoacoustic emission (OAE) is a sound which is generated from within the inner ear. Having been predicted by Thomas Gold in 1948, its existence was first demonstrated experimentally by David Kemp in 1978 and otoacoustic emissions have since been shown to arise through a number of different cellular and mechanical causes within the inner ear. Studies have shown that OAEs disappear after the inner ear has been damaged, so OAEs are often used in the laboratory and the clinic as a measure of inner ear health.
Atlas Children's Academy is an early childhood education center that opens the world to children of all backgrounds. Our unique program builds community, provides strong academics and supports the growth of the whole child. We are a licensed childcare provider that offers a wide range of activities that are fun and educational for age group 6 weeks to 12 years of age.
Jump up ^ Marshall, Lynne; Miller, Judi A. Lapsley; Heller, Laurie M.; Wolgemuth, Keith S.; Hughes, Linda M.; Smith, Shelley D.; Kopke, Richard D. (2009-02-01). "Detecting incipient inner-ear damage from impulse noise with otoacoustic emissions". The Journal of the Acoustical Society of America. 125 (2): 995–1013. Bibcode:2009ASAJ..125..995M. doi:10.1121/1.3050304. ISSN 0001-4966.
Dear Premier Wynne, even if one didn’t have children and had no idea how our child care system works, by just looking at the proposed changes one would concluded that a 12 month old is at a completely different developmental level than a almost 2 years old. And having 2 year old learning with children ready for Kindergarten doesn’t make any sense. Please do the right thing here to our already pathetic underfunded child care system and withdraw these changes.