Migration is associated with increased HIV vulnerability among young transgender women in Lima, Peru.

Background: Latin America-amidst its largest mass migration-has seen minimal progress in curbing new HIV infections. Transgender women (TW) in the region are disproportionately affected, but scant data examines HIV vulnerabilities alongside migration.

Methods: Between February-July 2022, 211 young TW ages 16-24 in Lima participated in a cross-sectional quantitative study accompanied by serological testing (HIV, syphilis, chlamydia, gonorrhea, hepatitis B).

Head-mounted camera as a debriefing tool for surgical simulation-based training: a randomized controlled study in Senegal.

Introduction: Video feedback, particularly with a head-mounted camera, has previously been described as a useful debriefing tool in well-funded health systems but has never been performed in a low-resource environment. The purpose of this randomized, intervention-controlled study is to evaluate the feasibility of using video feedback with a head-mounted camera during intestinal anastomosis simulation training in a low-resource setting.

Methodology: This study recruited 14 first-year surgery residents in Senegal, who were randomized into control and camera groups.

Comparative Study of Iminodibenzyl and Diphenylamine Derivatives as Hole Transport Materials in Inverted Perovskite Solar Cells.

Perovskite solar cells (PSCs) have recently achieved over 26% power conversion efficiency, challenging the dominance of silicon-based alternatives. This progress is significantly driven by innovations in hole transport materials (HTMs), which notably influence the efficiency and stability of PSCs. However, conventional organic HTMs like PTAA, although highly efficient, suffer from thermal degradation, moisture ingress, and high cost.

Estimating the CTDI with helical acquisitions: Results from a national generalizability study.

Background: While many clinical computed tomography (CT) protocols use helical scanning, the traditional method for measuring the volume CT Dose Index (CTDI) requires modifying the helical protocol to perform a single axial rotation. This modification can present challenges and mismatched settings across various scanner models.

Purpose: This study investigates the generalizability of a helical methodology for estimating CTDI across a diverse range of participants, CT scanner models, and protocol parameters.