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This study explored which of two modes of access to a biomedical database better supported problem solving in bacteriology. Boolean access, which allowed subjects to frame their queries as combinations of keywords, was compared to hypertext access, which allowed subjects to navigate from one database node to another. The accessible biomedical data were… (More)
Local community web sites are potentially powerful tools to increase citizens' knowledge about environmental risks and hazard preparedness . However, there is virtually no research on the development of local governments' web sites for hazard preparedness or the usability of this information technology by community residents.