The logging industry of the Amazon is a topic that has received little attention in the literature, beyond specific single firm case studies. This has not allowed estimation of cost and production functions that can be used to predict changes in the industry in response to external market factors or government policies. Cost functions and rents are very important to characterize the dynamics of...

Secure perimeter schemes (e.g. DRM) and tracing traitor schemes (e.g. watermarking, audit logging) strive to mitigate the problems of content escaping the control of the rights holder. Secure audit logging records the user’s actions on content and enables detection of some forms of tampering with the logs. We implement Schneier and Kelsey’s secure audit logging protocol [1], strengthening the p...

Understanding the causes underlying changes in species diversity is a fundamental pursuit of ecology. Animal species richness and composition often change with decreased forest structural complexity associated with logging. Yet differences in latitude and forest type may strongly influence how species diversity responds to logging. We performed a meta-analysis of logging effects on local specie...

Logging and replay of federation execution data are clearly useful for a number of purposes including after action review, demonstrations, analysis, and debugging. The advent of the HLA and its RTI, while clearly affording substantial payoffs in terms of abstraction, interoperability, and reuse, have a number of implications for simulation system architectures, Federate application software, Fe...