Effects of Samarium Doping on the Dielectric Properties of BaBiNbO Aurivillius Ceramics.

This study investigates the influence of samarium (Sm) doping on the structural, microstructural, mechanical, and dielectric properties of BaBiNbO (BBN) ceramics. Using the solid-state reaction method, samples of BaBiSmNbO with varying concentrations of Sm ( = 0.01; 0.

Thermal Stability and Non-Linear Optical and Dielectric Properties of Lead-Free KBiTiO Ceramics.

Lead-free KBiTiO (KBT) ceramics with high density (~5.36 g/cm, 90% of X-ray density) and compositional purity (up to 90%) were synthesized using a solid-state reaction method. Strongly condensed KBT ceramics revealed homogenous local microstructures.

The Effect of Pr Doping Contents on the Structural, Microstructure and Dielectric Properties of BaBiNbO Aurivillius Ceramics.

Aurivillius BaBiNbO and BaPrBiNbO ceramics were successfully synthesized by a simple solid state reaction method. Ceramics were prepared from reactants: NbO, BiO, BaCO and PrO. The microstructure, structure, chemical composition, and dielectric properties of the obtained materials were examined.

Crystallization of Lanthanide-Ho and Tm Ions Doped Tellurite Glasses.

In the presented work, the tellurite glasses TeO-WO-ZnO doped with Tm and Ho ions were prepared by the same glass forming method. X-ray diffraction (XRD) and differential thermal analysis (DTA) techniques were used to study the effects of the forming technology on the thermal and structural properties of the fabricated glasses. After controlled crystallization of investigated glasses, the emission in the VIS- and NIR range was determined.

A Comparative Study of a Novel Adhesive Bone Conduction Device and Conventional Treatment Options for Conductive Hearing Loss.

Objective: To compare the audiological performance with the novel adhesive bone conduction hearing device (ADHEAR) to that with a passive bone conduction (BC) implant and to that with a bone conduction device (BCD) on a softband.

Study Design: Prospective study in an acute setting, single-subject repeated measure in three situations: unaided, with conventional BCDs (passive implant or on softband), and with the ADHEAR.

Setting: Tertiary referral center.

The Bonebridge in Adults with Mixed and Conductive Hearing Loss: Audiological and Quality of Life Outcomes.

Background: Considering that hearing loss has a significant impact on social functioning, everyday activity and a person's emotional state, one of the most important goals of hearing rehabilitation with bone conduction devices is improvement in a patient's quality of life.

Objectives: To measure self-assessed quality of life in patients implanted with the Bonebridge, a bone conduction device.

Method: Prospective, observational, longitudinal study with one treatment group.

Osteogenesis Imperfecta: Phenotypic and Intraoperative Findings Observed in Patients Treated Surgically at the World Hearing Centre.

Objectives: Osteogenesis imperfecta (OI) is a systemic connective tissue disease that affects many systems and organs. Features of the disease are bone deformities, blue sclerae, and changes in the teeth, all of which may be accompanied by hearing loss. Bone fragility also affects structures of the ear, with half the patients developing changes in the auditory ossicles, which manifest as hearing loss.

Preservation of Hearing Following Cochlear Implantation Using Different Steroid Therapy Regimens: A Prospective Clinical Study.

BACKGROUND A prospective clinical study was conducted to assess different regimens of steroid therapy and preservation of hearing following cochlear implantation. MATERIAL AND METHODS Study participants were ≥18 years-of-age, with a cochlear duct length ≥27.1 mm measured by computed tomography (CT), with hearing sound levels in the range of 10-120 decibels (dB) and sound frequencies of 125-250 hertz (Hz); sound levels of 35-120 dB and frequencies of 500-1,000 Hz; sound levels of 75-120 dB and frequencies of 2,000-8,000 Hz.