The Impact of COVID-19 Pandemic on the Pattern and Presentation of Traumatic Dental Injuries in Children in a Tertiary Health Institution.

Background: COVID-19 pandemic brought adaptive changes in lifestyle with possible impact on the incidence of traumatic dental injuries.

Objective: This study compared the presentation and pattern of traumatic dental injuries in children during the pre-COVID-19 and COVID-19 pandemic periods.

Materials And Methods: This was a retrospective study done using clinical records of children aged 16 years and below who presented at the paediatric dental clinic of the University of Port Harcourt Teaching Hospital.

Real-time definition of single seed placement sensitivity in low-dose-rate prostate brachytherapy.

Purpose: In low-dose-rate brachytherapy, iodine-125 seeds are implanted based on a treatment plan, generated with respect to different dose constraints. The quality of the dose distribution depends on a precise seed placement, however, during treatment planning the impact on the dose parameters when certain seeds fail to be placed precisely is not clear.

Methods And Materials: We developed a method using automatic differentiation to calculate gradients of dose parameters with regard to the seeds' positions.

Diffuse domain approach for flexible needle insertion and relaxation.

Needle insertion simulations play an important role in medical training and surgical planning. Most simulations require boundary conforming meshes, while the diffuse domain approach, currently limited to stiff needles, eliminates the need for meshing geometries. In this article the diffuse domain approach for needle insertion simulations is first extended to the use of flexible needles with bevel needle tips, which are represented by an Euler-Bernoulli beam.

Expanded-multidimensional turnover intentions: scale development and validation.

Background: This study aims to provide researchers and practitioners with a more elaborate instrument to measure turnover intentions based on the planned behaviour theory model. The questionnaire assesses 5 distinct aspects of turnover intentions (i.e.