Productivity in terms of scientific publication was described by Lotka in 1926. He discovered that in the hard sciences he a u l d predict the number of papers an author would write providing he knew how many authors wrote only one paper during a given time period. The factor for predicting the number of papers in a field like chemistry was found to be l / n 2 of the number of authors writing only one paper. That is, if 100 authors wrots one paper, only 25 would write two papers, and only 11 would write three papers, etc. I f the Lotka constant holds for the hard sciences it was hypothesized (and tested) that other disciplines would have other constants. and thereby form a continuum based on productivity from the hard sciences to the non-sciences. The titaratwe of information science has been examined between 1966 and 1970. U t was determined that a new constant, l / n 3 -' fitted information science best.
The advantages of using holography for information storage and other applications is presented. The advantages are higher storage capacity than semiconductor memories, bubble memories, or CCDs; utilization for character recog nition; three-dimensional projection; television discs; color reproduction; ability to combine with other technologies such as optical fibers, videodisk; reference; and file security systems.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.