Publications by authors named "R Sievers"

Objective: This study aims to explore the educational, occupational and socioemotional experiences of people with developmental language disorder (DLD) across the lifespan to gain insight into risk and protective factors for mental health.

Design: Qualitative analysis of focus groups and written submissions. Data were combined and analysed using Braun and Clarke's reflexive thematic analysis approach within a critical realist framework.

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Complexation of the green bismuthinidene (RBi) with two equivalents of a highly fluorinated aryl iodide at low temperature allows the crystallographic identification of an unstable red species that can be regarded as an intermediate in an overall Bi(I) → Bi(III) oxidation process. Both C-I bonds are orientated toward the filled 6p orbital of bismuth (Bi-I distances 3.44-3.

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The electron withdrawing and oxidatively stable perfluorinated Cp* ligand [C(CF)] allowed for the isolation of rare and unusually stable coinage metal complexes [M(C(CF))(PBu)] (M = Cu, Ag, Au), representing the first complete and structurally comparable series of group 11 Cp coordination compounds. Full characterization and structure analysis revealed distinct and partly unknown coordination motifs with hapticities ranging from η, η/η and η/η for gold, silver and copper, respectively. Quantum-chemical studies using DFT methods confirm these findings and connect them to the unique electronic structure of the given ligand system.

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Triphenylpnictogens EPh (E=N, P, As, Sb, Bi) are able to displace the perfluorinated Cp* ligand in [Rh(COD)(C(CF))] (COD=1,5-cyclooctadiene) in up to quantitative yield. The resulting ionic products contain [C(CF)] as uncoordinated counter anion. The cations feature [Rh(COD)] fragments, coordinated by one (N, Bi), two (P, As) or three (Sb) triphenylpnictogen moieties.

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Children living in war-torn and geographically remote regions often die from measles due to undervaccination. Protective community immunity could be safely improved through the comprehensive use of small, inexpensive, easy-to-use, dry-powder aerosolized measles vaccination inhalers. Influential local community members could be engaged to provide risk counseling and inform their peers of measles risks to inspire vaccine uptake.

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