High-performance solid-state electrochemical thermal switches with earth-abundant cerium oxide.

Thermal switches, which electrically turn heat flow on and off, have attracted attention as thermal management devices. Electrochemical reduction/oxidation switches the thermal conductivity (κ) of active metal oxide films. The performance of the previously proposed electrochemical thermal switches is low; the on/off κ-ratio is mostly less than 5, and the κ-switching width is less than 5 watts per meter kelvin.

Depression risk among breast cancer survivors: a nationwide cohort study in South Korea.

Background: Depression among breast cancer survivors is a significant concern affecting their long-term survivorship and quality of life. This study investigates the incidence of depression among breast cancer survivors and identifies associated risk factors.

Methods: This retrospective cohort study used data from the Korean National Health Insurance Service database and included 59,340 breast cancer patients without a history of depression who underwent surgery between January 1, 2010, and December 31, 2016.

Protecting Against Loneliness: The Mediating Role of Sense of Community.

Loneliness is a growing public health concern that impacts individual's well-being. However, mechanisms that protect against the effects of loneliness have not been examined widely. Guided by prior literature documenting that loneliness and a sense of community are related, this study sought to test the mediating role of a sense of community on loneliness and well-being and the moderating role of gender.

Colloidal Dispersions of Sterically and Electrostatically Stabilized PbS Quantum Dots: Structure Factors, Second Virial Coefficients, and Film-Forming Properties.

Electrostatically stabilized nanocrystals (NCs) and, in particular, quantum dots (QDs) hold promise for forming strongly coupled superlattices due to their compact and electronically conductive surface ligands. However, studies of the colloidal dispersion and interparticle interactions of electrostatically stabilized sub-10 nm NCs have been limited, hindering the optimization of their colloidal stability and self-assembly. In this study, we employed small-angle X-ray scattering (SAXS) experiments to investigate the interparticle interactions and arrangement of PbS QDs with thiostannate ligands (PbS-SnS) in polar solvents.

Participation in organised sports and longitudinal development of physical activity in Swiss youth: the population-based SOPHYA cohort.

Background: Maintaining physical activity throughout life is crucial for overall health and wellbeing. Yet the age-related decline in average physical activity, a natural phenomenon also observed in animals, poses a challenge. This study aimed to investigate whether participation in organised sports supported by the Swiss Youth+Sports (Y+S) programme is associated with sustaining or enhancing physical activity among children and adolescents during 5 years of follow-up.