Skandinaviske studier og geopolitik: IASS og den kolde krig

The foundation stone for the creation of IASS was laid at the First International Conference on Scandinavian Studies which took place at the University of Cambridge, England, in July 1956. Few months later, the world woke up to the news of the Soviet invasion in Budapest on November 4th, a defining moment in the history of the Cold War, which sent political shock waves and a flow of nearly a quarter-million Hungarian refugees to Western Europe. But how did this tense political situation affect the emerging field of international Scandinavian studies? Drawing on the vast literature of published proceedings from IASS conferences and personal interviews with members of the organization, this article examines how the Cold War geopolitical conflict between the communist East and the capitalist West left its imprint on the activities of IASS in the period from 1956 until the Fall of the Berlin Wall and the dissolution of the Soviet Union in 1989/1991

Lattice gas cellular automata model for rippling and aggregation in myxobacteria

A lattice-gas cellular automaton (LGCA) model is used to simulate rippling and aggregation in myxobacteria. An efficient way of representing cells of different cell size, shape and orientation is presented that may be easily extended to model later stages of fruiting body formation. This LGCA model is designed to investigate whether a refractory period, a minimum response time, a maximum oscillation period and non-linear dependence of reversals of cells on C-factor are necessary assumptions for rippling. It is shown that a refractory period of 2-3 minutes, a minimum response time of up to 1 minute and no maximum oscillation period best reproduce rippling in the experiments of {\it Myxoccoccus xanthus}. Non-linear dependence of reversals on C-factor is critical at high cell density. Quantitative simulations demonstrate that the increase in wavelength of ripples when a culture is diluted with non-signaling cells can be explained entirely by the decreased density of C-signaling cells. This result further supports the hypothesis that levels of C-signaling quantitatively depend on and modulate cell density. Analysis of the interpenetrating high density waves shows the presence of a phase shift analogous to the phase shift of interpenetrating solitons. Finally, a model for swarming, aggregation and early fruiting body formation is presented

Avantgarden til magten?:Det tidlige Klaus Rifbjerg og velfærdsstaten

af Torben Jelsba