Pigment removal from reverse-printed laminated flexible films by solvent-targeted recovery and precipitation.

The solvent-targeted recovery and precipitation (STRAP) process separates and recovers the constituent resins in multilayer plastic packaging films by selective polymer dissolution. In this work, the cause of coloring in the STRAP-recycled polyethylene (PE) resins from postindustrial printed films was identified as decomposed diarylide pigments. Two different approaches are needed to completely remove the dissolved colorants during the STRAP process including (i) adding an activated carbon (AC) adsorbent to the solvent after polymer dissolution and (ii) proper mechanical filtration of the polymer-solvent cake to remove as much solvent from the cake as possible.

Physical activity and lung cancer screening (PALS): feasibility randomised controlled trial of exercise and physical activity in lung cancer screening.

Background: There is increasing evidence that screening provides a catalyst for behavioural change. Low physical activity (PA) levels are a potentially modifiable risk factor for developing lung cancer. This study aims to assess the feasibility and safety of a semi-supervised 8-week multi-modal exercise program to improve health-related quality of life and PA levels of participants of lung cancer screening.

Femoral Nail and Cement Static Spacer Technique for the Treatment of Chronic Periprosthetic Knee Infection.

A 2-stage protocol is standard of care treatment in the United States for chronic periprosthetic joint infection of the knee. While many patients benefit from insertion of an articulating spacer, there are instances in which this is not feasible, and a static spacer is indicated. However, many static spacer techniques risk instability and lack durability.

Network Meta-Analysis With Individual Participant-Level Data of Time-to-Event Outcomes Using Cox Regression.

The accessibility of individual participant-level data (IPD) enhances the evaluation of moderation effects of patient covariates. It facilitates the provision of accurate estimation of intervention effects and confidence intervals by incorporating covariate correlations across multiple clinical trials. With a time-to-event outcome, Cox regression can be applied for network meta-analysis (NMA) using IPD.