Understanding magnetic hyperthermia performance within the "Brezovich criterion": beyond the uniaxial anisotropy description.

Careful determination of the heating performance of magnetic nanoparticles under AC fields is critical for magnetic hyperthermia applications. However, most interpretations of experimental data are based on the uniaxial anisotropy approximation, which in the first instance can be correlated with the particle aspect ratio. This is to say, the intrinsic magnetocrystalline anisotropy is discarded, under the assumption that the shape contribution dominates.

Dependence of Exchange Bias on Interparticle Interactions in Co/CoO Core/Shell Nanostructures.

This article reports the dependence of exchange bias (EB) effect on interparticle interactions in nanocrystalline Co/CoO core/shell structures, synthesized using the conventional sol-gel technique. Analysis via powder X-Ray diffraction (PXRD) studies and transmission electron microscope (TEM) images confirm the presence of crystalline phases of core/shell Co/CoO with average particle size ≈ 18 nm. Volume fraction (φ) is varied (from 20% to 1%) by the introduction of a stoichiometric amount of non-magnetic amorphous silica matrix (SiO2) which leads to a change in interparticle interaction (separation).

Asthma, much more than a respiratory disease: influence of depression and anxiety.

Objective: The goals of this study are to compare self-reported depression and anxiety in subjects diagnosed of asthma and healthy controls.

Methods: We designed a case-control study. Subjects were recruited using a consecutive sampling method from a single institution.

The role of cortical perforations in allogeneic block grafting for lateral augmentation in maxilla: A randomized clinical trial.

Background: The need of decortication on the recipient site remains unclear for bone regeneration. To our knowledge, there are no human clinical trials that studied the influence of decortication on cancellous allogeneic block grafting.

Purpose: The aim of the present study is to evaluate the influence of perforating the cortex of the recipient site on cancellous allogeneic block graft integration and revascularization in the maxilla.

Self-Perceived Handicap Associated With Dysphonia and Health-Related Quality of Life of Asthma and Chronic Obstructive Pulmonary Disease Patients: A Case-Control Study.

Purpose The association between voice alterations, health-related quality of life (HRQL), and chronic respiratory diseases, such as asthma and chronic obstructive pulmonary disease (COPD), has previously been reported. The aim of this study was to test the hypothesis that HRQL and dysphonia-associated handicap of patients diagnosed with asthma or COPD are worse than healthy controls. Method A case-control study in which participants were recruited by a consecutive sampling method from a single institution was conducted.