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Effects of feeding free chitosan to rats at graded levels up to 15 percent of the diet for eight weeks was investigated. Animals receiving diets containing 5 percent or less of chitosan grew well at comparable rates. Progressive growth reduction occurred when chitosan was increased to 10 and 15 percent of the diet and enlargement of liver and kidneys was(More)
The paper describes the MIKE (Model-based and Incremental Knowledge Engineering) approach for developing knowledge-based systems. MIKE integrates semiformal and formal specification techniques together with prototyping into a coherent framework. All activities in the building process of a knowledge-based system are embedded in a cyclic process model. For(More)
Currently, several projects within our company focus on learning from experiences in the software domain. Yet, there are no textbook recipes how a process of organizational learning can be established. In particular , types of experiences must be identified that are potentially valuable for reuse. Furthermore, the organization and representation of such(More)
This paper describes experiences from two organizations that have used the Riskit method for risk management in their software projects. This paper presents the Riskit method, the organizations involved, case study designs, and findings from case studies. We focus on the experiences and insights gained through the application of the method in industrial(More)
The suite of models that we developed during the VT-experiment especially allowed us to come up with a characterization of the competence of the propose-and-revise method and a list of its assumptions (some examples are given in section 5.4). These assumptions are further described in Fensel (1995b), but the basic idea is that these assumptions allow for a(More)