Development of techniques to enhance man/machine communication

A four-state random stimulus generator, considered to function as an ESP teaching machine was used to investigate an approach to facilitating interactions between man and machines. A subject tries to guess in which of four states the machine is. The machine offers the user feedback and reinforcement as to the correctness of his choice. Using this machine, 148 volunteer subjects were screened under various protocols. Several whose learning slope and/or mean score departed significantly from chance expectation were identified. Direct physiological evidence of perception of remote stimuli not presented to any known sense of the percipient using electroencephalographic (EEG) output when a light was flashed in a distant room was also studied

Life testing of metal-ceramic CO2 lasers

The main purpose of this program was to determine the life characteristics of nine space-qualified, metal-ceramic CO2 lasers. Lifetimes ranged between about 400 hours to over 2000 hours (the limit of testing) with a high degree of consistency in like groups. In all cases the tubes which had failed could be restored to near their original power by doubling the cathode current for 30 minutes. Periodic rejuvenation allowed operation for the full 2000 hours on all tubes. The failure mechanism appears to involve formation of NiO and C on the nickel cathode emission surface with subsequent absorption of tube gases

People\u27s Nicaragua

https://digitalcommons.fairfield.edu/petry-books/1280/thumbnail.jp

THE POLICY CONSEQUENCES OF THE GREEN REVOLUTION:

By examining data from fifteen Latin American nations on several agricultural- and food-related variables for 1965 to 1977, this paper analyzes the efficacy of the Green Revolution for food consumption. A Radical Model is offered to explain why a high technology, export-oriented, agricultural policy may not adequately serve the food consumption needs of Third World countries. Copyright 1984 by The Policy Studies Organization.