‘They found that an extended stereocilium was more efficient if it was receiving low-frequency sounds,’ while shorter stereocilia most amplified high-frequency sound efficiently, Brownell says. Breneman says scientists now know of five methods the ears amplify audio, and ‘what makes this one unique is that it would be within the stereocilia bundles of most hair cells, not only outer locks cells.’ The cochleae of humans and various other mammals have ‘inner locks cells’ that sense sound passively and active ‘external locks cells’ that amplify noises. Other higher pets have hair cells, without a distinction between inner and outer.Greenberg Women’s Health Centre in Ottawa, and Assistant Professor in the Faculty of Medication at the University of Ottawa. Product Start: Am I Pregnant? online and mobile software The Society of Obstetricians and Gynaecologists of Canada will end up being launching its fresh online and mobile software to help Canadian women better understand the signs or symptoms of pregnancy and determine what their probabilities are of having conceived. The next spokesperson will be available for comment: – Dr. Amanda Black, SOGC member responsible for development of the new online and mobile application.