A tutorial introduction to data models in general is provided, with particular emphasis on the relational and network models defined by the two proposed ANSI (American National Standards Institute) database language standards. Examples based on the network and relational models include specific syntax and semantics, while examples from the other…

After a decade of slow but steady progress, the pace of development of technologies to deacidify and strengthen deteriorating books and documents has quickened significantly. These developments accentuate the need for the conservation community to scientifically evaluate the technical merits of potential processes. This draft evaluation strategy…

This model for a school community resource directory contains the following: (1) an overview of the problems involved in the compiling of resource people to serve as career speakers and trip hosts with a possible solution in the form of a file card format; (2) a description of the promotion of the new format; (3) an explanation of the development…