An alternate synthetic pathway to nanoscopic LiFeS for energy storage.

Lithium-rich iron sulphide, LiFeS, exhibits reversible charge-storage both cationic and anionic sites, storing nearly 400 mA h g, but its synthesis is limited to solid-state methods that result in large primary particles. We describe an alternate solution-based, redox-mediated method to lithiate pyrite FeS, ultimately forming nanoscale LiFeS.

Characterization of Collaborative Cross mouse founder strain CAST/EiJ as a novel model for lethal COVID-19.

Mutations in SARS-CoV-2 variants of concern (VOCs) have expanded the viral host range beyond primates, and a few other mammals, to mice, affording the opportunity to exploit genetically diverse mouse panels to model the broad spectrum of responses to infection in patient populations. Here we surveyed responses to VOC infection in genetically diverse Collaborative Cross (CC) founder strains. Infection of wild-derived CC founder strains produced a broad range of viral burden, disease susceptibility and survival, whereas most other strains were resistant to disease despite measurable lung viral titers.

Characterization of Collaborative Cross mouse founder strain CAST/EiJ as a novel model for lethal COVID-19.

Mutations in SARS-CoV-2 variants of concern (VOCs) have expanded the viral host range beyond primates, and a limited range of other mammals, to mice, affording the opportunity to exploit genetically diverse mouse panels to model the broad range of responses to infection in patient populations. Here we surveyed responses to VOC infection in genetically diverse Collaborative Cross (CC) founder strains. Infection of wild-derived CC founder strains produced a broad range of viral burden, disease susceptibility and survival, whereas most other strains were resistant to disease despite measurable lung viral titers.

Mulch Madness: A Community-Academic Partnership for Lead Poisoning Prevention.

Background: Soil constitutes a major source of childhood lead exposure, disproportionately affecting communities of color. Mulching offers a low-cost interim control.

Objectives: A community-academic partnership was established for lead poisoning prevention, with a three-fold aim: (1) control soil lead hazards by applying mulch, (2) identify home lead hazards with screening kits, and (3) connect residents to resources to address lead hazards.