7 research outputs found

    3-methylaminopropylamine as a templating agent in the synthesis of phosphate-based inorganic polymers

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    3-methylaminopropylamine (MPA) has been studied as a structure-directing agent (template) in the synthesis of open-framework phosphate-based materials. The influence of temperature, molar ratio of reactants, crystallization time and presence of fluoride ions on the crystallization of aluminophosphate, transition metal-substituted aluminophosphate [transition metal - Mn(II), Cr(III) and Co(II)] and zincophosphate has also been investigated. MPA exhibits the templating role and in all as-synthesized crystalline products and it is entrapped in an inorganic lattice interacting with the framework via hydrogen or/and electrostatic interactions. According to detailed thermal analysis the type of interactions seems to be crucial for thermal behaviour of MPA and also for the thermal stability of the organic-inorganic crystal system. Structural analysis suggested that the formed crystalline structures have no mutual structural analogy. This indicates that precise role of the organic (guest) component in nucleation process for the open-framework phosphates (host) is very complex as well as the nucleation process itself. [Projekat Ministarstva nauke Republike Srbije, br. 172018

    XAS Studies on Incorporation of MnMn and CoCo into Silicalite-1

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    Mentors’ cultural competence at mentoring culturally and linguistically diverse nursing students in clinical practice:an international cross-sectional study

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    Abstract Aims: This study aimed to identify mentors’ cultural competence profiles at mentoring culturally and linguistically diverse nursing students in clinical practice and explore associating factors. Background: Globalization has had a significant impact on healthcare, increasing the diversity of healthcare workforces and the number of culturally and linguistically diverse nursing students in clinical practice. The cultural competence of mentors is important to secure students’ safe and successful learning. The mentor role in clinical practice contributes toward enabling and ensuring students’ high-quality and goal-oriented development of competence. Design: This study implemented a cross-sectional design with a final sample of 270 clinical practice mentors from Finland, Lithuania, Spain and Slovenia. Methods: The data were collected using an online survey including the Mentors’ Cultural Competence Instrument, Mentors’ Competence Instrument and background questions during 2020–2021. The data were analyzed using a K-mean cluster algorithm to identify mentors’ competency profiles. Results: Three significantly differing mentor competency profiles (Profile A 42%, Profile B 41%, Profile C 17%) were identified in this study. The cultural competence of the mentors in clinical practice varied between intermediate and high levels. Mentors rated their cultural competence as best in the area of cultural sensitivity and awareness, whereas the lowest scored area was cultural interaction and safety. Conclusions: This study showed that the cultural competence of mentors in clinical practice varied and was influenced by mentors’ work experience, age, job title and frequency of mentoring. This study provides new knowledge that could help to develop cultural competence operating models and education to enhance the cultural competence of healthcare professionals

    Synthetic Access to a Hydrocarbon-soluble Trifluorinated Ge(II) Compound and its Sn(II) Congener

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    Trifluorinated germanium anions attracted attention of theoretical chemists already in the late 1990s to predict their physical and chemical properties. However these species were not synthesized in the laboratory, although substantial evidence for their existence was obtained from the mass spectrometry of GeF4GeF_4. The present study shows that controlled fluorination of LMNMe2LMNMe_2 (L=PhC(NtBu)2L = PhC(N^tBu)_2, M=Ge,SnM = Ge, Sn) using HF·pyridine in toluene leads to the formation of [LH2]+[MF3][LH_2]^+[MF_3]^− under elimination of HNMe2. The products contain the trifluorinated Ge(II) and Sn(II) anionic species which are stabilized by interionic H···F bonds. The new compounds were characterized by single crystal X-ray structural analysis, NMR spectroscopy, and elemental analysis
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