The design, construction, and operation of a solid state electrometer is described. The instrument used the case and meter movement from an obsolete commercial pH meter. The cost of materials, purchased in 1977 in unit quantities, was $60. (BB)

The instrumental method for detecting total organic carbon (TOC) in water samples is detailed. The method's limitations are discussed and certain precautions that must be taken are emphasized. The subject of TOC versus COD and BOD is investigated and TOC is determined to be a valid indication of biological demand. (BT)

Discusses the contribution of 17th and 18th century instrument makers to the development and progress of science and the methods of teaching science. (MLH)

This paper criticizes the Yeany, Yap, and Padilla paper (1986). Questions the internal consistency about hierarchical relationships of integrated processes and cognitive reasoning concerning procedures used for the generation of subhierarchies, instrumentation used to assess the process skills, and rigor of lexicon. (YP)

The main goal of this study was to implement a computer-animated talking head, Baldi, as a language tutor for speech perception and production for individuals with hearing loss. Baldi can speak slowly; illustrate articulation by making the skin transparent to reveal the tongue, teeth, and palate; and show supplementary articulatory features, such…

Students' attitudes toward and conceptual understanding of chemical instrumentation is surveyed. The study shows that, in general, the students' attitudes toward using instrumentation in the lab is quite positive and they felt that using instrumentation in the lab allowed them not only to connect "chemistry" and the "real world", but also to…

This study attempted to increase the size of the correlation between person-environment (P-E) fit and job satisfaction by rescaling the instrumentation of the Theory of Work Adjustment using the Bradley-Terry-Luce method and a probability-based fit index. This approach worked as well as, but failed to outperform, the currently used…

Note is presented on the standard lab from a second year chemistry course. The lab "Determining which of the Seven FD&C Food-Approved Dyes are Used in Making Green Skittles", familiarizes students with the operation of the CHEM2000 UV-Vis spectrophorometer.

A variety of equipment and materials for teaching science are described. Included are films, film loops, balances, and other items. (RH)

A Canadian scientist discusses his country's environmental monitoring programs (by parameter and medium), points out their strengths and weaknesses, and indicates some possible directions for future efforts in the field of environmental monitoring at both the national and international level. (BT)

This discussion gives a general picture of the instrumentation available or being developed for measuring the four major categories of water pollutants: metals, nutrients, pesticides and oxygen demand. The instruments are classified as follows: manually operated laboratory analyzers, automated laboratory instrumentation, manual field monitors, and…

Requirements for qualification in the field of process control instrument technology are outlined and discussed for prospective instrument technicians. (Author/EA)

This document presents the complete appendices to "A Descriptive Profile of Individuals Applying for Certification Through Individual Review Procedures," SP 011 401. The contents of these appendices are: (1) description of items for recording; (2) item recording instructions; (3) recording form, (4) certificate coding, (5) state coding,…