Bone anchored hearing implants/aids (BAHI/BAHA) utilise a bone anchored hearing aid system to assist people with conductive hearing loss who cannot use traditional hearing aids. It was introduced in the 1970 ́s in the field of dentistry by Swedish Professor Per-Inge Brånemark who implanted titanium dental fixtures in the jaw. He then proceeded to develop titanium implants to anchor hearing aids ...

The Hamiltonian describing fermion pair production from an arbitrarily time-varying electric field in two dimensions is studied using a group-theoretic approach. We show that this Hamiltonian can be encompassed by two, commuting SU(2) algebras, and that the twodimensional problem can therefore be reduced to two one-dimensional problems. We compare the group structure for the two-dimensional pro...

BACKGROUND Collapsed ear canals typically occur when an outside force, such as a headset for audiometric testing, is present. However, when a collapsed ear canal occurs without external pressure, this creates a challenge not only for performing audiometric testing but also for coupling a hearing aid to the ear canal. PURPOSE This case report highlights the challenges associated with fitting a...

The eruption of the novel Covid-19 has changed socio-economic conditions world. escalating number infections and deaths seriously threatened human health when it became a pandemic from an epidemic. It developed into alarming situation World Health Organization (WHO) declared emergency in MARCH 2020. geographic settings weather are systematically linked to spread concentration population attribu...

Conventional external hearing aids can be generally subdivided into air-conduction hearing aids and bone-conduction hearing aids. Air-conduction hearing aids require the use of ear molds, which may be problematic in patients with chronic middle ear and ear canal infections, atresia of the external canal, or an ear canal that cannot accommodate an ear mold. Bone-conduction hearing aids function ...

Abstract Aim Percutaneous bone anchored hearing aid (BAHA) is an effective rehabilitation option. However, complications including granulation, skin overgrowth and infections may lead to revision surgeries. This study aim was assess the complication rate potential contributing factors leading Method Adult patients who underwent BAHA connect (Cochlear Corp) operations between 2016 2021 were incl...