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This thesis examines mechanisms regulating bacterial nitrification and denitrification in attached microbial communities on surfaces of aquatic macrophytes. It also evaluates the role of epiphytic nitrification and denitrification for the nitrogen turnover in macrophyte-dominated nutrient-rich freshwaters. Epiphytic nitrification is promoted in light and epiphytic denitrification occurs mainly in
The chapter traces the eighteenth-century reception in Scandinavia of Edme Boursault’s fable comedy Esope (1690). After some initial difficulties, Boursault’s play, innovatively combining the popular genres of fable and comedy, scored a success at the Comédie Française and was also staged abroad. The fable comedy in 1722 reached the playhouse in Copenhagen in a Danish translation, entitled Aesopus
Summary in English The Art Nouveau houses in the Olympia district in Helsingborg. An essay on architecture and living space in transformation The aim of this study is, in a longer term perspective and from various aspects, to discuss a group of distinctive buildings in Helsingborg. This consists of almost 30 detached apartment houses in the Art Nouveau style. They were built during a period of a
The purpose of this study was to investigate how the geometry of a fiber optic probe affects the transmission and reflection of light through the scleral eye wall. Two geometrical parameters of the fiber probe were investigated: the source-detector distance and the fiber protrusion, i.e. the length of the fiber extending from the flat surface of the fiber probe. For optimization of the fiber optic
The article deals with stabilisation and regeneration of CeO2 and CeO2/ZrO2 based Pt water gas shift catalysts, subject to high initial deactivation. The reaction gas species effect on the catalyst deactivation was investigated by H2-TPR. Activity measurements enabled the effect of different promoters, some added to the CeO2 based catalysts and some to the CeO2/ZrO2 based Pt catalysts, to be inves
