Background: As teacher training plays a major role in the development of (prospective) teachers' knowledge, differences between the professional knowledge of prospective teachers at Austrian and German universities were examined in the current study. The teacher training systems of business and economic education in both countries differ substantially regarding structure and content. The German system consists of two consecutive phases with different foci (university education with an emphasis on theories and domain-specific knowledge, followed by school-based practical training with the objective of acquiring practical experience). Thus, in Germany, opportunities to learn (OTL) mainly cover domain-specific knowledge with less focus on didactics and teaching experience. In contrast, Austrian universities offer an integrated approach that combines the two phases (i.e., theoretical input and practical teaching experiences are closely linked) at the university level.

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A monoclonal antibody was developed for detection of Helicobacter pylori in gastric tissue sections in a direct immunofluorescence test. On a comparison of the immunofluorescence test with standard methods for detection of Helicobacter pylori, i.e. culture, the urease activity test and histological examination of tissue sections, using 158 biopsy specimens, 30 specimens were positive in all methods and 64 negative. In the remaining cases comparison was not possible because either immunofluorescence (29 specimens) or the standard methods (16 specimens) gave ambiguous results. The direct immunofluorescence test may have potential as an alternative to standard methods, but further testing in a defined patient population is necessary.

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