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Mystery: In 1994 the Pataluzans (actually Chile) had been loudly informing the world that their system of aggressive injury prevention had markedly cut their worker compensation costs without sacrificing good care. Prof. Edgar Stratham, M.D., Ellen Chapman, Esq. and Alex Steinman, M.D. (the narrator) who were involved in the Worker's Compensation Program in California, decided to visit Pataluza and study its worker compensation system while having a bit of fun down under. Due to their intelligence, powers of observation and bad luck, the Yankee trio stumble upon and unearth evil - tragic, ageless evil.
When the Soviet Union dissolved, so did the easy credit, cheap oil, and subsidies it had provided to Cuba. The bottom fell out of the Cuban economy, and many expected that Castro’s revolution—the one that had inspired the Left throughout Latin America and elsewhere—would soon be gone as well. More than a decade later, the revolution lives on, albeit in a modified form. Following the collapse of Soviet communism, Castro legalized the dollar, opened the island to tourism, and allowed foreign investment, small-scale private enterprise, and remittances from exiles in Miami. Capitalism, God, and a Good Cigar describes what the changes implemented since the early 1990s have meant for ordinar...
Automated planning is known to be computationally hard in the general case. Propositional planning is PSPACE-complete and first-order planning is undecidable. One method for analyzing the computational complexity of planning is to study restricted subsets of planning instances, with the aim of differentiating instances with varying complexity. We use this methodology for studying the computational complexity of planning. Finding new tractable (i.e. polynomial-time solvable) problems has been a particularly important goal for researchers in the area. The reason behind this is not only to differentiate between easy and hard planning instances, but also to use polynomial-time solvable instances...
Classical planning is the problem of finding a sequence of actions for achieving a goal from an initial state assuming that actions have deterministic effects. The most effective approach for finding such plans is based on heuristic search guided by heuristics extracted automatically from the problem representation. In this thesis, we introduce alternative approaches for performing inference over the structure of planning problems that do not appeal to heuristic functions, nor to reductions to other formalisms such as SAT or CSP. We show that many of the standard benchmark domains can be solved with almost no search or a polynomially bounded amount of search, once the structure of planning problems is taken into account. In certain cases we can characterize this structure in terms of a novel width parameter for classical planning.
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With the dissolution of the Soviet Union, foreign policy analysts and international relations scholars expected communist Cuba to undergo transitions to democracy and to markets as had the Eastern European nations of the former Soviet bloc. But more than a decade after the fall of the Berlin Wall, Castro remains in power, with no sign that the Cuban government or economy is moving toward liberalization. In Democracy Delayed, political scientist Juan López offers a searching and detailed analysis of the factors behind Cuba's failure to liberalize. López begins by comparing the political systems of three Eastern European states—the former German Democratic Republic, Czechoslovakia, and Rom...
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