Multi-angle laser device improves novice learning of C-arm fluoroscopy for lumbar spine surgery.

Purpose: This study aims to evaluate the efficacy and satisfaction of using a multi-angle laser device (MLD) for C-arm fluoroscopy to assist novice learners during lumbar spine surgery.

Methods: Forty novice learners were randomly assigned to Group A using an MLD-equipped C-arm or Group B using a traditional C-arm. Both groups performed X-ray fluoroscopy on a lumbar spine model in supine and rotated positions.

CuO-Modified PtSe Monolayer as a Promising Sensing Candidate toward CH and CH in Oil-Immersed Transformers: A Density Functional Theory Study.

This work using the density functional theory simulates the strong potential of the CuO-decorated PtSe (CuO-PtSe) monolayer as a recycle use CH and CH sensor in order to realize the arc discharge monitoring based on the nano-sensing method. Results indicate that CuO decoration causes strong n-type doping for the PtSe monolayer with a binding force ( ) of -2.49 eV, and the CuO-PtSe monolayer exhibits strong chemisorption and electron-accepting properties in the two gas systems, with the adsorption energy ( ) and charge transfer ( ) obtained as -1.