It is not conceivable that in a mixture or compound a component may exist in a negative ratio. Traditionally, therefore, a negative value could not be plotted on triangular coordinates. However, negative values are explicitly allowed, and the results extend the use of triangular coordinates as shown in this article. (JN)

Discusses how computational errors arise in analysis of data and how they can be minimized. Shows that all computations are subject to roundoff/truncation errors and how such errors are propagated and influence the stability and condition of a reaction. Applications to procedures used in analytical chemistry are addressed. (JN)

Reviews background of atomic absorption spectrometry techniques. Discusses problems encountered and precautions to be taken in determining trace elements in the parts-per-billion concentration range and below. Concentrates on determining chromium in biological samples by graphite furnace atomic absorption. Considers other elements, matrices, and…

Presents research results on photosynthetic, carbon monoxide utilizing bacteria. Discusses applications of the research and offers three sets of experimental procedures and data that students analyze to determine which bacterium from a soil sample uses carbon monoxide fastest. (Contains 21 references.) (MDH)

This paper reports on research that examined longitudinal data on students entering Tennessee Board of Regents institutions of higher education after the implementation of a state-mandated developmental studies program. The program identifies and helps at-risk students to persist in college to graduation. Data analysis is presented from a 1986…

This report presents an analysis of the Governor's proposed State budget for fiscal year 1991-92. The analysis provides: (1) a discussion of major budget issues facing the Governor and the Legislature in constructing the 1991-92 State budget; (2) a brief overview of the Governor's proposed funding priorities; and (3) an analysis of the key policy…

This report contains detailed data on average salaries in the comparison institutions of the University of California and the California State University. It analyzes raw data submitted by comparison institutions for the University and State University and then provides a detailed written analysis of faculty salary parity computations. It is noted…

This paper discusses the data that are available on demand and supply of teachers of mathematics and science and points out discrepancies and difficulties in current statistics and in collecting the pertinent information. Estimates of supply hinge on indentifying who is to be included in the pool of mathematics and science teachers, but there are…

Discusses the use of computers for nine different tasks in biological education: information retrieval, data accumulation, data analysis, simulation and systems analysis, decision making, experimental control, course review, computer-managed instruction, and word processing. (PEB)

This report presents national normative data on the major trends and characteristics of 1.6 million students attending American colleges and universities as first-time, full-time freshmen. The normative data are reported separately for men and for women and for 35 different institutional groupings. Among the findings are the following: (1) student…

This report summarizes trends identified in 25 years of the Cooperative Institutional Research Program's annual surveys of college freshmen. It documents an array of demographic, attitudinal, and social changes involving students entering the nation's colleges since the survey's inception in 1966. Major findings from this report point to…

This information sheet describes General Curriculum Options, one of four streams or subject areas offered in the Certificates in General Education for Adults (CGEA) in Australia. The first seven learning outcomes are based on seven key competencies: collecting, analyzing, and organizing information; planning and organizing activities;…