Enhancing nitrogen removal through macrophyte harvest and installation of woodchips-based floating beds in surface-flow constructed wetlands.

Wetland management maintains nitrogen (N) removal capacity in mature and overgrown constructed wetlands (CWs). We evaluated whether CW management by macrophyte harvesting, and subsequent installation of woodchips-based floating beds (WFBs) planted with Glyceria maxima and Filipendula ulmaria improved N removal. In sixteen heavily overgrown experimental CWs, we applied four treatments: i) only macrophyte harvesting, ii) 5% of the harvested-CW surface covered with WFBs, iii) 20% WFBs cover, and iv) a control treatment (heavily overgrown).

Budget impact of the Walk With Ease program for knee osteoarthritis.

Objective: Walk With Ease (WWE) is an effective low-cost walking program. We estimated the budget impact of implementing WWE in persons with knee osteoarthritis (OA) as a measure of affordability that can inform payers' funding decisions.

Methods: We estimated changes in two-year healthcare costs with and without WWE.

Wetland nitrogen removal from agricultural runoff in a changing climate.

Wetlands in agricultural areas mitigate eutrophication by intercepting nutrient transports from land to sea. The role of wetlands for nutrient removal may become even more important in the future because of the expected increase in agricultural runoff due to climate change. Because denitrification is temperature dependent, wetland nitrogen (N) removal usually peaks during the warm summer.

Walk with ease for knee osteoarthritis: A cost-effectiveness analysis.

Objective: The Walk With Ease (WWE) program was developed by the Arthritis Foundation to help people with arthritis learn to exercise safely and improve arthritis symptoms. We sought to establish the value of the WWE program.

Methods: We used the Osteoarthritis Policy (OAPol) Model, a widely published and validated computer simulation of knee osteoarthritis (OA), to assess the cost-effectiveness of WWE in knee OA.

Reach and Impact of In-Person and Remote Delivery Formats of Walk with Ease.

This descriptive study retrospectively evaluates the reach and impact of cohorts enrolled in Group (in-person, 2017-2020) and Self-Directed (remote, 2019-2020) delivery formats of the evidenced-based health promotion program, Walk with Ease, implemented statewide in North Carolina. An existing dataset consisting of pre- and post-surveys were analyzed for 1,890 participants; 454 (24%) from the Group format and 1,436 (76%) from Self-Directed. Self-Directed participants were younger, had more years of education, represented more Black/African American and multi-racial participants, and participated in more locations than Group, though a higher percentage of Group participants were from rural counties.