Experiences, Challenges, and Needs of People Living with HIV in Hunan Province, China: A Qualitative Study.

Background: Globally, the human immunodeficiency virus (HIV) epidemic continues to pose significant challenges. In China, the differentiated services delivery (DSD) model has been implemented to improve healthcare for people living with HIV (PLHIV). However, challenges persist in fully implementing and scaling up the DSD model.

Monitoring of metsulfuron-methyl and its residues in an artificial pond.

The behavior of metsulfuron-methyl and its residues in an artificial pond was studied using a (14)C isotopic tracer technique. Throughout the experimental period, the majority of metsulfuron-methyl residues were sustained in the pond water. Furthermore, the metsulfuron-methyl residues were just found in the surface layer of the sediment, and the transfer distance of these residues had only reached 9-12 cm by the end of the experiment.