Polycrystalline Superalloy Membranes Produced by Load-Free Coarsening of Incoherent γ'-Precipitates: Microstructure Evolution and Mechanical Properties.

Nanoporous superalloy membranes are a functional extension of the use of nickel-based alloys. The material, which is usually used for high-temperature applications, consists mainly of the two phases γ and γ'. Through coarsening of the precipitates and thus forming of a bicontinuous γ/γ' network, membranes can be produced by removing either of these phases.

Aetiology of Ludwig van Beethoven's hearing impairment: hypotheses over the past 100 years - A systematic review.

Objectives: Even 250 years after Beethoven's birth, the irrevocable cause of his hearing impairment remains unclear despite multiple publications by different professional groups. This study aimed to analyse the development of the most likely aetiologies during the last 100 years by a systematic review of the relevant medical literature.

Methods: A systematic review of medical literature in PubMed, PubMed Central, and Web of Science for the period 1920-2020 was conducted.

Spatial Hearing by Bilateral Cochlear Implant Users With Temporal Fine-Structure Processing.

Several studies have demonstrated the advantages of the bilateral vs. unilateral cochlear implantation in listeners with bilateral severe to profound hearing loss. However, it remains unclear to what extent bilaterally implanted listeners have access to binaural cues, e.

A new adhesive bone conduction hearing system effectively treats conductive hearing loss in children.

Objectives: Bone conduction hearing devices integrated in softbands (BCDSs) are frequently not well accepted by children with conductive hearing loss due to pressure on the head, sweating, or cosmetic stigma. A non-surgical hearing system (ADHEAR) uses a new bone conduction concept consisting of an audio processor connected to an adhesive adapter fixed behind the ear. This study is the first to evaluate the audiological and clinical outcome of this novel system, comparing it with conventional BCDSs in a short- and mid-term follow-up in children under 10 years of age.