Heterogeneous catalysis strategies for polyolefin plastic upcycling: co-reactant-assisted and direct transformation under mild conditions.

The large-scale production and inadequate disposal of polyolefin (PO) plastics pose significant environmental challenges. Traditional recycling methods are energy-intensive and often ineffective, prompting a need for more sustainable approaches. In recent years, catalytic upcycling under mild conditions has emerged as a promising strategy to transform PO plastics into valuable products.

Association between neighborhood walkability and physical activity in a community-based twin sample.

We investigated associations between neighborhood walkability and physical activity using twins (5477 monozygotic and same-sex dizygotic pairs) as "quasi-experimental" controls of genetic and shared environment (familial) factors that would otherwise confound exposure-outcome associations. Walkability comprised intersection density, population density, and destination accessibility. Outcomes included self-reported weekly minutes of neighborhood walking and moderate-to-vigorous physical activity (MVPA) and days per week using transit services (eg, bus, commuter rail).

Temporary Circular External Fixation for Spanning the Traumatized Ankle Joint.

Background: Temporary ankle-spanning circular fixation aims to provide osseous stability while (1) allowing access to and recovery of the traumatized soft-tissue envelope and (2) facilitating safe, comfortable, and clinically relevant cross-sectional imaging for surgical planning. It is most commonly utilized in a "span-scan-plan" treatment strategy in cases of peri-articular fractures around the ankle. Conventional monolateral fixators are prone to morbidity at the half-pin sites in the foot and variation in construct stability.

Prospective surveillance and early intervention to prevent chronic breast cancer-related arm lymphedema-what are the barriers?

Up to one in five early breast cancer patients develop chronic upper limb lymphedema after breast cancer treatments. This treatment complication is irreversible and can significantly impact the quality of life of breast cancer survivors. The model of prospective surveillance and early intervention has emerged as a potential strategy to prevent the development of this debilitating treatment-related complication.