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Integrated bioenergy and food production
(2015)
Rising global energy needs and limited fossil fuel reserves have led to increased use of renewable energies. In Germany, this has entailed massive exploitation of agricultural biomass for biogas generation, associated with unsustainable farming practices. Organic agriculture not only reduces negative environmental impacts, organic farmers were also prime movers in anaerobic digestion (AD) in Germany. This study’s aim was to identify the structure, development, and characteristics of biogas production associated with ...
Aufsatz
Probabilistic upscaling and aggregation of wind power forecasts
(2020-03-16)
Background
Wind power forecasts of the expected wind feed-in for the next hours or days are necessary to integrate the generated volatile wind energy into power systems. Most forecasting models predict in some sense the best value, but they ignore the other possible outcomes which may arise because of forecasting uncertainties. Probabilistic forecasts, on the other hand, also predict a distribution of possible outcomes with their respective probabilities that specific power values will occur and therefore have higher ...
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Loss of wobble uridine modification in tRNA anticodons interferes with TOR pathway signaling
(2014)
Previous work in yeast has suggested that modification of tRNAs, in particular uridine bases in the anticodon wobble position (U34), is linked to TOR (target of rapamycin) signaling. Hence, U34 modification mutants were found to be hypersensitive to TOR inhibition by rapamycin. To study whether this involves inappropriate TOR signaling, we examined interaction between mutations in TOR pathway genes (tip41Δ, sap190Δ, ppm1Δ, rrd1Δ) and U34 modification defects (elp3Δ, kti12Δ, urm1Δ, ncs2Δ) and found the rapamycin ...
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
Countering Negotiation Power Asymmetries by Using the Adjusted Winner Algorithm
(2023-03-10)
One promise of computational decision support is enabling better solutions in interactions and social exchange by supporting human strengths (e.g. intuitive decision-making) with formal procedures. This study investigates whether mathematical post-negotiation procedures can guide parties to an efficient negotiation result and thus overcome the shortcomings of human-only approaches in the situation of power asymmetry. The results show that (a) an increase in power by means of a rise in issue authority for one of the ...
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 ...
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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
Development and Validation of the Certainty About Mental States Questionnaire (CAMSQ): A Self-Report Measure of Mentalizing Oneself and Others
(2021-12-14)
The Certainty About Mental States Questionnaire (CAMSQ) is a self-report measure of the perceived capacity to understand mental states of the self and others (i.e., mentalizing). In two studies (total N = 1828), we developed the CAMSQ in both English and German as a two-dimensional measure of Self- and Other-Certainty, investigated associations with other measures of mentalizing, and explored relationships to personality functioning and mental health. The CAMSQ performed well in terms of convergent and discriminant ...
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, ...