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Learning from failure: Research initiatives towards improving resilience of the Swedish railway system

This paper includes a brief description of some closely related ongoing research activities aiming at learning from failures in order to improve the resilience of the Swedish railway system. One of these activities includes the development of a method aiming at assessing the capability for restoring the service of the railway system after strains affecting its technical, and often highly interdepe

On leukocyte recruitment in endotoxemic liver injury

Leukocyte recruitment is a key feature of liver injury associated with endotoxemia and systemic inflammation. The aim of this thesis was to define the adhesive mechanisms underlying leukocyte endothelial cell interactions, and the therapeutic potential of interference with specific adhesion molecules in endotoxemic liver damage. Moreover, the causal relationship between leukocyte recruitment on on

Physical bounds on the partial realized gain

An antenna identity, derived from the forward scattering sum rule, shows that the partial realized gain of an antenna is related to the polarizability of the antenna structure. The partial realized gain contains the mismatch, directivity, efficiency, and polarization properties of the antenna. The antenna identity expresses how the performance depends on the electrical size and shape of the antenn