Das Buch als Heterotopie : Betrachtungen zur sozialen Dimension des Leseprozesses

Nach Foucault sind Heterotopien Orte und Räume, die zwar innerhalb von Gesellschaften existieren, jedoch anderen Normen und Gesetzen unterworfen sind als ihre Umwelt. Zugleich reflektieren Heterotopien die sie umgebenden sozialen Verhältnisse, indem sie diese repräsentieren, umkehren oder negieren. Denise Schneider ergründet in ihrer interdisziplinären Master arbeit die Frage, ob auch Bücher ein solches Potenzial haben und somit heterotopen Status erlangen können. Anhand zweier Betrachtungsebenen – der kognitiven Erfassung und der körperlichen Wahrnehmung – unter sucht sie die Erfahrung der Anderswelt »Buch« sowie das soziale Erleben des Lesers im Rahmen der Lektüre. Mit der Zusammenführung von Theorien aus der Buch wissenschaft, Philosophie, Medien- und Kognitionswis senschaft eröffnet sie einen neuen Blickwinkel auf das Medium Buch und darauf, was es zu leisten vermag.90 Seite

Reciprocal Analysis of Francisella novicida Infections of a Drosophila melanogaster Model Reveal Host-Pathogen Conflicts Mediated by Reactive Oxygen and imd-Regulated Innate Immune Response

The survival of a bacterial pathogen within a host depends upon its ability to outmaneuver the host immune response. Thus, mutant pathogens provide a useful tool for dissecting host-pathogen relationships, as the strategies the microbe has evolved to counteract immunity reveal a host's immune mechanisms. In this study, we examined the pathogen Francisella novicida and identified new bacterial virulence factors that interact with different parts of the Drosophila melanogaster innate immune system. We performed a genome-wide screen to identify F. novicida genes required for growth and survival within the fly and identified a set of 149 negatively selected mutants. Among these, we identified a class of genes including the transcription factor oxyR, and the DNA repair proteins uvrB, recB, and ruvC that help F. novicida resist oxidative stress. We determined that these bacterial genes are virulence factors that allow F. novicida to counteract the fly melanization immune response. We then performed a second in vivo screen to identify an additional subset of bacterial genes that interact specifically with the imd signaling pathway. Most of these mutants have decreased resistance to the antimicrobial peptide polymyxin B. Characterization of a mutation in the putative transglutaminase FTN_0869 produced a curious result that could not easily be explained using known Drosophila immune responses. By using an unbiased genetic screen, these studies provide a new view of the Drosophila immune response from the perspective of a pathogen. We show that two branches of the fly's immunity are important for fighting F. novicida infections in a model host: melanization and an imd-regulated immune response, and identify bacterial genes that specifically counteract these host responses. Our work suggests that there may be more to learn about the fly immune system, as not all of the phenotypes we observe can be readily explained by its interactions with known immune responses

Evidence of the Relationship Between Credit Ratings and Reporting Discontinued Operations

ABSTRACT: To test whether standard setters’ objective of improving the usefulness of the financial statements by enacting ASU 2014-08 was achieved, we compare the relationship between credit ratings and discontinued operations under SFAS No. 144 and ASU 2014-08. If discontinued operations are interpreted by credit ratings agencies as non-recurring, they should have no or low persistence and should be unrelated to credit ratings. We find that the relationship between reported discontinued operations and credit ratings under SFAS No. 144 is significant, the implication being that credit ratings agencies did not perceive discontinued operations as non-recurring. In contrast, the relationship is insignificant under ASU 2014-08, discontinued operations are now viewed as non-recurring and the objective of standard setters was achieved. Our results contribute to extant literature on discontinued operations and the relevance of separately stated or disclosed items