A formula is given that enables one to determine the parameters for amortizing an information system within a year. The formula is illustrated with three mechanized information systems for patents. The most critical parameter is shown to be indexing time. (7 references) (Author/NH)

Results were interpreted in terms of current conceptions of age differences in information-processing speed. (Author)

A sophisticated modeling technique which predicts pollutant movement accurately and may aid in the design of new freeways is reported. EXPLOR (Examination of Pollution Levels of Roadways) was developed specifically to predict pollutant concentrations in a milewide corridor traversed by a roadway. (BL)

Research supported in part by a Public Health Service Grant to the New School of Social Research and a National Science Foundation Grant to Stanford University. (VM)

The six-year training program has provided some success in recruiting well-qualified graduate students with scientific and technical backgrounds who can work with scientists in collecting, digesting, and synthesizing information in the sciences. (MM)

The relative retrieval efficiency of the title searching technique and the index term searching technique is so close that the choice of one method or the other must be primarily on economic grounds. (9 references) (Author)

Excerpts from proceedings and recommendations of conference media, systems and resources in engineering education. Conference held at Lehigh University, May 19-20, 1966. (IR)

An educational psychologist outlines some recent changes in the conception of human learning and memory, and discusses their implications for the design and practice of instruction. (MF)