Appropriate flame-spraying treatment exacerbates thermal oxidative degradation of residual polyethylene films.

In dryland farming, plastic film mulching can significantly increase crop yields, but the resulting residues impair soil health. Heretofore, only few studies had examined how heat treatment facilitates the rapid degradation of polyethylene (PE) residual films. Herein, we characterized the variations in micro-morphology, functional groups, and crystallinity of PE residual films after moderate heat exposure using a self-made flame-spraying equipment.

[Clinical application study of midline catheter in vasopressor therapy].

Objective: To evaluate the safety and necessity of vasopressor infusion through midline catheter.

Methods: A convenient sampling method was used for a controlled study. A total of 88 adult patients who used vasopressors admitted to respiratory intensive care unit (RICU) of Fenyang Hospital in Shanxi Province from June 2022 to June 2023 were enrolled as the research subjects.

Greater Biofilm Formation and Increased Biodegradation of Polyethylene Film by a Microbial Consortium of sp. and sp.

The widespread use of polyethylene (PE) mulch films has led to a significant accumulation of plastic waste in agricultural soils. The biodegradation of plastic waste by microorganisms promises to provide a cost-effective and environmentally-friendly alternative for mitigating soil plastic pollution. A large number of microorganisms capable of degrading PE have been reported, but degradation may be further enhanced by the cooperative activity of multiple microbial species.