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Since the beginning of the 1970s a lot of countries in Latin America has been starting the transition to democracy. The article analyses the role played by the military in this process, especially the effects of civildemocratic governments – sometimes failing in – gaining power over the military. It is described how and why the army occasionally kept their independence from the civil power and how this influenced the consolidation of democracy.
Taking into account historical as well as sociological differences, the author distinguishes between different modes of socialism. On the periphery of the Soviet Union and Eastern Europe, the combination of modern and traditional elements led to the establishment of hybrid political forms. They could be characterized as bureaucratic-patrimonial and associated with a specific type of state: the "peripheral socialist state".
Subject of this work is the investigation of generic synchronization phenomena in interacting complex systems. These phenomena are observed, among all, in coupled deterministic chaotic systems. At very weak interactions between individual systems a transition to a weakly coherent behavior of the systems can take place. In coupled continuous time chaotic systems this transition manifests itself with the effect of phase synchronization, in coupled chaotic discrete time systems with the effect of non-vanishing macroscopic mean field. Transition to coherence in a chain of locally coupled oscillators described with phase equations is investigated with respect to the symmetries in the system. It is shown that the reversibility of the system caused by these symmetries results to non-trivial topological properties of trajectories so that the system constructed to be dissipative reveals in a whole parameter range quasi-Hamiltonian features, i.e. the phase volume is conserved on average and Lyapunov exponents come in symmetric pairs. Transition to coherence in an ensemble of globally coupled chaotic maps is described with the loss of stability of the disordered state. The method is to break the self-consistensy of the macroscopic field and to characterize the ensemble in analogy to an amplifier circuit with feedback with a complex linear transfer function. This theory is then generalized for several cases of theoretic interest.