Fluoropolymer sorbent for efficient and selective capturing of per- and polyfluorinated compounds.

Per- and poly-fluoroalkyl substances (PFAS) have gained widespread attention due to their adverse effects on health and environment. Developing efficient technology to capture PFAS from contaminated sources remains a great challenge. In this study, we introduce a type of reusable polymeric sorbent (PFPE-IEX + ) for rapid, efficient, and selective removal of multiple PFAS impurities from various contaminated water sources.

Defining a public health approach to substance use: Perspectives from professionals and practitioners across Canada.

Background: While increasingly referenced in the literature and policy discussions, a "public health approach" (PHA) to substance use has been inconsistently defined or remained undefined. As part of a larger project on building the capacity to implement a PHA to substance use, we aimed to understand how professionals and practitioners across Canada who work with or whose work directly impacts the lives of people who use substances conceptualize a PHA.

Methods: We conducted a cross-sectional national online survey of public health professionals, public safety professionals, health and social service providers, and other relevant professionals and practitioners.

Linking the uptake of best management practices on dairy farms to catchment water quality improvement over a 20-year period.

Intensive land use, such as dairying, can impair water quality. Although many guidelines exist on how to mitigate the loss of dairy-associated contaminants from land to water through best management practices (BMPs), few datasets exist on the success of implementation on-farm. Five dairy-dominated catchments (from 598 to 2480 ha) in New Zealand were studied from 2001 to 2020.

Limiting grazing periods combined with proper housing can reduce nutrient losses from dairy systems.

Pasture-based and grass-fed branding are often associated with consumer perceptions of improved human health, environmental performance and animal welfare. Here, to examine the impacts of dairy production in detail, we contrasted global observational (n = 156) data for nitrogen and phosphorus losses from land by the duration of outdoor livestock grazing in confined, grazed and hybrid systems. Observational nitrogen losses for confined systems were lowest on a productivity-but not area-basis.

Heritable genome editing and cognitive biases: why broad societal consensus is the wrong standard for moving forward.

Heritable genome editing (HGE) may one day safely correct mutations that cause serious monogenic diseases. Nevertheless, some scientists and bioethicists argue that HGE should be subject to a moratorium. In their view, no nation should proceed with clinical use absent broad societal consensus in favor of moving forward with HGE and a specific use.