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Lanthanide Complexes (Ln=La, Nd, Dy) of Octaethyl propane-1,1,3,3-tetrayltetrakis(phosphonate): Multidentate Binding Competing with Monodentate DMSO Complexes
(2022-12-09)
The preparation of lanthanide nitrate complexes [Ln(NO₃)₃{L}]ₙ (Ln³+=La, Nd, Dy) supported by the octaethyl propane-1,1,3,3-tetrayltetrakis(phosphonate) (L) chelate ligand platform is presented. Re-crystallization of these compounds from DMSO/THF led to a complete replacement of the multidentate phosphonate ester ligand and the formation of exclusively DMSO-supported lanthanide nitrate species [Ln(NO₃)₃(DMSO)₄]. The relative basicity of a model phosphonate ester vs. DMSO is explored with theoretical means, pointing ...
Aufsatz
Family as a redistributive principle of welfare states: An international comparison
(2022-08-03)
Redistribution is one of the main characteristics of the welfare state, and welfare state research has dealt intensely with various facets of it. The main focus in analysing redistribution is on the redistributive logics of welfare states in terms of work-related rights. Family as a major principle of welfare state redistribution, though, has hardly been included in these welfare state analyses. It has mainly been addressed by analysing outcome data or by analysing care as the most relevant characteristic of the ...
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Far-Right Local Governments and Civil Society: Findings from France and Italy
(2022-03-02)
The rise of far-right parties across Europe and their entrance into government at the local, if not regional or national, levels pose challenges for established civil society actors. This article draws on early findings from an ongoing research project in order to present two case studies of far-right local governments in small industrial towns in France and Italy: Hayange and Sant’Agata Bolognese. Keying in on these local administrations’ approaches to civil society and drawing on semi-structured interviews with ...
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Growth of C-S-H phases on different metallic surfaces
(2022-02-21)
The influence of reinforcement, especially fibre reinforcement in ultra-high performance concrete is strongly dependent on the bonding (adhesive, shear and friction bond) between metallic surface and cementitious matrix. As usually straight fibres are used for fibre reinforcement and, thus, no significant mechanical bonding is existent, the adhesive bond is particularly important. Previous studies stated that the adhesive bonding behaviour between metallic materials and cementitious matrix strongly depends on the ...
Aufsatz
Konfliktmanagement von interpersonellen und Intragruppenkonflikten in virtuellen Sitzungsformaten – Eine explorative Studie
(2022-12-05)
Die Bildung virtueller Teams nimmt durch die Digitalisierung, Internationalisierung sowie die pandemische Lage stetig zu. Dies bringt viele Vorteile, aber auch ein gesteigertes Konfliktpotenzial mit sich. Folglich gewinnen Konfliktmanagementstrategien für virtuelle Sitzungsformate zunehmend an Relevanz. Im Folgenden wird ein praxisrelevanter Handlungsleitfaden für virtuelles Konfliktmanagement dargelegt. Dabei wird deutlich, dass es von besonderer Bedeutung ist, eine realitätsnahe Begegnungssituation durch Videokonferenzen, ...
Aufsatz
Metastable CrMnNi steels processed by laser powder bed fusion: experimental assessment of elementary mechanisms contributing to microstructure, properties and residual stress
(2022-12-18)
The complex thermal history imposed by the laser-based powder bed fusion of metals (PBF-LB/M) process is known to promote the evolution of unique microstructures. In the present study, metastable CrMnNi steels with different nickel contents and, thus, different phase stabilities are manufactured by PBF-LB/M. Results clearly reveal that an adequate choice of materials will allow to tailor mechanical properties as well as residual stress states in the as-built material to eventually redundantize any thermal post-treatment. ...
Aufsatz
Three‑dimensional close‑to‑substrate trajectories of magnetic microparticles in dynamically changing magnetic field landscapes
(2022-12-03)
The transport of magnetic particles (MPs) by dynamic magnetic field landscapes (MFLs) using magnetically patterned substrates is promising for the development of Lab‑on‑a‑chip (LOC) systems. The inherent close‑to‑substrate MP motion is sensitive to changing particle–substrate interactions. Thus, the detection of a modified particle–substrate separation distance caused by surface binding of an analyte is expected to be a promising probe in analytics and diagnostics. Here, we present an essential prerequisite for such ...
Aufsatz
Fabrication of High-Quality Thin Single-Crystal Diamond Membranes with Low Surface Roughness
(2022-10-17)
Certain aspects before and during the fabrication of single-crystal diamond (SCD) membranes are highlighted, which are decisive to obtain high-quality membranes with low surface roughness values around 0.2 nm on a small area scale. In addition to the requirements for the starting material, including a high planarity and a moderate surface roughness, the importance of cleaning processes to minimize particles and impurities before and during the structuring is emphasized. With the help of a planarization procedure, ...
Aufsatz
Das Beurteilen von Lernprodukten als Facette diagnostischer Kompetenz fördern
(2022-12-02)
Diagnostische Kompetenz ist eine zentrale Komponente der professionellen Kompetenzen von Lehrkräften, die die Qualität von Unterricht und somit das Lernen von Schülerinnen und Schülern beeinflusst. Aufgrund dieser zentralen Bedeutung rückt die systematische Schulung der diagnostischen Kompetenz zunehmend in den Forschungsfokus. Diese Arbeit zielt auf die Erforschung der Förderung diagnostischer Kompetenz im Bereich der Mathematik ab. Wir stellen eine quasi-experimentelle Studie mit Treatment- und Kontrollgruppe vor, ...
Aufsatz
The role of design patterns in the development and legal assessment of lawful technologies
(2022-10-22)
Novel technologies such as smart personal assistants integrate digital services into everyday life. These services use personal data to offer personalized services. While they are subject to special data protection regulations at the time of development, there are few guidelines describing the transition from legal requirements to implementation. To reduce risks, services depend on external legal assessments. With developers and legal experts often missing either legal or technical knowledge, the challenge lies in ...