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While governmental policies and institutions may remain more or less the same for years, they can also change suddenly and unpredictably in response to new political agendas and crises. What causes stability or change in the political system? What role do political institutions play in this process?
To investigate these questions, Policy Dynamics draws on the most extensive data set yet compiled for public policy issues in the United States. Spanning the past half-century, these data make it possible to trace policies and legislation, public and media attention to them, and governmental...

One of the surprising things about the natural world is that animals are dying around us all the time and yet we rarely see any evidence of it. This is a testimony to the efficiency of the large variety of organisms which decompose animal corpses. Whilst bacteria and fungi are the main groups involved in decomposition processes, the larger insects additionally provide an important physical disruption of body tissues, which aids the penetration of micro organisms and speeds the collapse of the body structure. A human corpse is treated no differently and the same groups of organisms are...