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Combination of Lyapunov Functions and Density Functions for Stability of Rotational Motion

Lyapunov methods and density functions provide dual characterizations of the solutions of a nonlinear dynamic system. This work exploits the idea of combining both techniques, to yield stability results that are valid for almost all the solutions of the system. Based on the combination of Lyapunov and density functions, analysis methods are proposed for the derivation of almost input-to-state sta

Pluralistic Ignorance : A Case for Social Epistemology and Epistemic Logic

In this paper the phenomenon of pluralistic ignorance is discussed and it is argued why it is of relevance for epistemic logic and social psychology. Roughly put, pluralistic ignorance is the case when a group of interacting agents all experience a discrepancy between their private opinions and the perceived opinions of the others. After introducing the phenomenon, numerous features of pluralistic

Tests of material properties in mixed mode I and II

Fracture in plain concrete starts normally as tensile fracture, whereby a damage zone forms perpendicular to the principal tensile stress direction. If this stress direction is maintained when the deformation within the damage zone increases, the material behaviour in the damage zone can be described by a simple stress-deformation curve. The design of a test equipment for the measurement of the ma

The narratives of the arab uprisings: towards a cultural analysis of social movements in the Middle East

The popular uprisings that swept many countries in the Middle East during the last three years have been subject to much academic analysis that attempted to interpret the events and their significance for future political developments in the region. Discursive tropes such as revolution, counter-revolution, sectarian strife, and terrorism have been used in such analyses as they have been utilized b