Karl-Heinz Ehrenforth: Geschichte der musikalischen Bildung. Eine Kultur-, Sozial- und Ideengeschichte in 40 Stationen. Mainz: Schott Verlag 2005. 554 S., 54,00 EUR [Rezension]

Rezension zu: Karl-Heinz Ehrenforth: Geschichte der musikalischen Bildung. Eine Kultur-, Sozial- und Ideengeschichte in 40 Stationen. Mainz: Schott Verlag 2005. 554 S., 54,00 EU

The Hero in Erex saga, Ívens saga and Parcevals saga in Relation to Spatiality

This Master’s thesis, by the title “The Hero in Erex saga, Ívens saga and Parcevals saga in Relation to Spatiality” written by Carla Schäffler, analyses these three sagas in context of spatiality and its relation to the literary depiction of the male protagonists’ masculinity. The sagas are part of the Old Norse literary genre of translated riddarasögur. Originally, the texts are based on Old French verse novels that were translated into Old Norse during the reign of King Hákon Hákonarson (1204–1263) to serve his political agenda to establish a hierarchical society in Norway by implementing the norms and values portrayed in the sagas on his courtiers in order to create a standardised society across his kingdom and to thereby also make his kingdom competitive with the rest of continental Europe, as the standards of the Norwegian court were lacking compared to the rest of Europe. The analysis of this thesis mainly focuses on the three saga’s relation of spatiality and the hero’s masculinity, but also shows how his masculinity is intertwined with the code of conduct displayed in the translated riddarasögur, the Konungs skuggsjá (composed around 1250) and Hirðskrá (compiled between 1273 and 1277). The two latter texts are Old Norse courtly texts, with the first-mentioned being a didactic work, whereas the other represents a code of law for the king’s retainers. In order to conduct this analysis, the spaces within the sagas are categorised into the space of the court, the forest space, the space of the other court and the magical space, through which the hero’s movement and his changing courtly masculinity is analysed. The results show how each space is semantically charged and that the spaces are necessary to portray the hero’s unfulfilled masculinity through a lack of a courtly value, but also to help him repair and regain his masculinity in retrieving the lost value through his movement within the different spaces which create plot and thereby quests for the knight. The spaces and the subsequent quests that result from the hero’s movement within them also reveal the core value that each saga aims to portray. In the case of Erex saga and Ívens saga, it is the refined value of honour. For Parcevals saga, which describes the full education of the hero it not only includes the refined facets of courtly masculinity, but also portrays the even more basic values and norms presented by Konungs skuggsjá in the form of the virtues manvit [wisdom], the basis of all good manners, siðgǿði [good breeding] and hǿverska [courtesy], which represent the refined form of courtliness.Master's Thesis in Old Norse StudiesNOFI350MAHF-NOF

Remote sensing of coastal erosion and thaw slump activities effected by heavy precipitation in West Alaska

In this study the dynamics of retrogressive thaw slumps (RTS), which are main permafrost thawing features along the eroding coasts of the Arctic region, were investigated by using MACS airborne stereo ortho imagery of the 2021 Perma-X flight campaign in West Alaska. The attempt was a remote sensing change detection done by using digital terrain models for structure from motion photogrammetry. The developed workflow was applied at two study sites at the coast of the Baldwin Peninsula. At the time of the data acquisition in June and July 2021 the area was facing heavy rainfalls, which are assumed to occur more often and intensely due to climate change. The aim was to use the results of the digital terrain model differences for measuring the rainfall erosion and their impact on RTS activity. For processing images photogrammetrically and generating digital elevation models PIX4D was used. Image adjustments and the difference calculations were done with QGIS. Unfortunately the created digital terrain models show a lot of large and small scale failures, which were so severe that a successful DTM differencing was not possible. Mass movement and erosion can be seen at some locations in the DTM, but accurate detecting or measuring of RTS dynamics was not possible with the data and the developed workflow. Therefore the influence of the heavy rainfall event of Summer 2021 remains unclear up to this point

Single-Electron Transistor in Strained Si/SiGe Heterostructures

A split gate technique is used to form a lateral quantum dot in a two-dimensional electron gas of a modulation-doped silicon/silicon-germanium heterostructure. e-beam lithography was employed to produce split gates. By applying negative voltages to these gates the underlying electron gas is depleted and a lateral quantum dot is formed, the size of which can be adjusted by the gate voltage. We observe single-electron operation with Coulomb blockade behavior below 1K. Gate leakage currents are well controlled, indicating that the recently encountered problems with Schottky gates for this type of application are not an inherent limitation of modulation-doped Si/SiGe heterostructures, as had been speculated.Comment: 3 page

Single-shot readout of hole spins in Ge

The strong atomistic spin orbit coupling of holes makes single-shot spin readout measurements difficult because it reduces the spin lifetimes. By integrating the charge sensor into a high bandwidth radio-frequency reflectometry setup we were able to demonstrate single-shot readout of a germanium quantum dot hole spin and measure the spin lifetime. Hole spin relaxation times of about 90 $\mu$s at 500\,mT are reported. By analysing separately the spin-to-charge conversion and charge readout fidelities insight into the processes limiting the visibilities of hole spins has been obtained. The analyses suggest that very high hole visibilities are feasible at realistic experimental conditions underlying the potential of hole spins for the realization of viable qubit devices

Einfluss von NOD2, intestinalem Mikrobiom und Vitamin D auf den klinischen Verlauf von chronisch-entzündlichen Darmerkrankungen

Der Krankheitsverlauf bei CED-Patienten lässt sich aktuell nur unzureichend vorhersagen, prädiktive Marker stehen nur eingeschränkt zur Verfügung. Die hier vorgestellten Arbeiten beschäftigen sich mit dem Zusammenhang zwischen Darmmikrobiom, Vitamin D und genetischen Risikofaktoren, wie Mutationen im NOD2 Gen bei CED. Aus den hier durchgeführten Untersuchungen resultiert u.a. ein besseres Verständnis darüber, wie sich die einzelnen Faktoren gegenseitig beeinflussen und eine Auswirkung auf den Krankheitsverlauf bei CED haben

Positioning of self-assembled Ge islands on stripe-patterned Si (001) substrates

Self-assembled Ge islands were grown on stripe-patterned Si (001) substrates by solid source molecular beam epitaxy. The surface morphology obtained by atomic force microscopy (AFM) and cross-sectional transmission electron microscopy images (TEM) shows that the Ge islands are preferentially grown at the sidewalls of pure Si stripes along [-110] direction at 650o C or along the trenches, whereas most of the Ge islands are formed on the top terrace when the patterned stripes are covered by a strained GeSi buffer layer. Reducing the growth temperature to 600oC results in a nucleation of Ge islands both on the top terrace and at the sidewall of pure Si stripes. A qualitative analysis, based on the growth kinetics, demonstrates that the step structure of the stripes, the external strain field and the local critical wetting layer thickness for the islands formation contribute to the preferential positioning of Ge islands on the stripes.Comment: 10 pages, 7 figures, 1 table, the original paper is in print in J. Appl. Phy