The objective is to evaluate the bleaching efficacy and cytotoxicity of innovative low-concentration in-office gels containing 6% hydrogen peroxide (H₂O₂), hyaluronic acid (HA), or carbomer 940 (CAR) as thickeners, titanium dioxide nanoparticles co-doped with nitrogen and fluorine (NF_TiO₂) and irradiated with violet LED. Bovine enamel/dentin disks adapted to artificial pulp chambers were randomly assigned to seven groups (n = 8): NC (negative control), HP35 (commercial control), HA, HA-HP6 +...

Black American men in the United States face a disproportionate burden of obesity-related morbidity and mortality, which contributes to lower life expectancy. Although national guidelines suggest that physical activity regardless of domain can reduce obesity risk, emerging research on the "physical activity paradox" questions whether occupational physical activity (OPA) confers the same health benefits as leisure-time physical activity (LTPA). This paradox is especially relevant to Black...

AdeFGH and AdeIJK, the two homologous multidrug efflux pumps of the resistance-nodulation-division superfamily of transporters, play distinct roles in Acinetobacter baumannii physiology and antibiotic resistance. Unlike ubiquitous AdeIJK, AdeFGH is strain-specific, typically expressed at low levels, and if overproduced, it enables resistance to a narrow spectrum of antibiotics, e.g., fluoroquinolones or chloramphenicol. In this study, we report that representatives of naphthyl-substituted...

CONCLUSIONS AND RELEVANCE: In this study, economic instability that included food insecurity and poor social and community context were associated with greater odds of pediatric long COVID. Those with food security, despite experiencing other economic challenges, did not have greater odds of long COVID. Further study is needed to determine if addressing SDOH factors can decrease the rate of pediatric long COVID.

Redox reactions at the interface of metal oxides and protic electrolytes almost always involve protons and electrons in equal amounts. Given the stoichiometry, these proton-coupled electron transfer (PCET) reactions are thermochemically equivalent to net H-atom transfer (HAT) reactions. The correlation between the chemical nature of solid catalysts and HAT kinetics has been employed for decades as the design principle for energy-relevant reactions (e.g., reactions of 2H^(+)/H(2)). More recently,...