|A small electronic device inserted into the ear of deaf whose capability level of hearing is null. It can be placed behind the ear or inside the ear through surgical procedure. It has a microphone, speech processor, transmitter and an electrode array. It is different from hearing aid and cannot restore normal hearing. Scholarly peer review is the process of subjecting an author's scholarly work, research, or ideas to the scrutiny of others who are experts in the same field, before a paper describing this work is published in a journal. The work may be accepted, considered acceptable with revisions, or rejected. Peer review requires a community of experts in a given (narrowly defined) field, who are qualified and able to perform reasonably impartial review.