Herein we report the synthesis and structural characterization of perfluoroalkylated arsoranide salts. Complementary quantum chemical calculations provide initial insights into the stability of the corresponding anions. Treatment of As(CF(3))(2)I and As(C(2)F(5))(2)X (X = Br, Cl) with the tetraphenylphosphonium halide salts [PPh(4)]X (X = I, Br, Cl) affords the diorganyl arsoranide salts [PPh(4)][As(CF(3))(2)I(2)] and [PPh(4)][As(C(2)F(5))X(2)] (X = Br, Cl) in high yields. For the introduction...

Multidrug efflux pumps of the resistance-nodulation-division (RND) superfamily are major contributors to antibiotic resistance in Pseudomonas aeruginosa. Among these, the MexEF-OprN system, when overproduced in clinical isolates, confers resistance to fluoroquinolones, trimethoprim, and chloramphenicol. The inner-membrane RND transporter MexF in this complex exhibits a relatively narrow substrate specificity and the molecular mechanisms underlying this specificity are still unclear. Here, we...

Four strains of a Gram-stain-positive, coccoid, catalase-positive, non-motile bacterium were recovered from nasal lavage samples collected from children in Wisconsin during the Spring of 2008. These strains, designated RSM42^(T), RSM292, RSM386 and RSM407, were subjected to a comprehensive biochemical and polyphasic taxonomic investigation. Despite the novel bacterium sharing 99.6% 16S rRNA gene sequence identity with Rothia mucilaginosa 5762/67^(T), BLAST+ average nucleotide identity, MUMmer3...

Housing cost burden is a critical issue in contemporary society, not only because of the economic strain it imposes on households, but also due to its impact on child development outcomes. This study examines the risk of child hyperactivity-inattention problems across different levels of housing cost burden during the COVID-19 pandemic and explores whether these patterns differ between renter and homeowner families, two groups that experienced distinct challenges to child well-being during this...

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