Discusses three types of sensors; pressure, gas detection, and relative humidity. Explains their use for laboratory measurements of gas pressure and detection of specific gaseous species. Shows diagrams of devices and circuits along with examples and applications including microcomputer interfacing. (RT)

Describes a survey conducted by Sigma Xi of its membership in 1986 on science policy issues. Lists the four most important issues identified by the survey and discusses how bioscientists, specifically, responded. Compares how bioscientists identify themselves politically with other scientists. Identifies some of the complaints of bioscientists…

Considers the importance of the development of fundamental concepts in chemistry. Proposes an "anticipative" chemical education which would foster a more complete understanding of life sciences. Discusses widening the scope of chemistry and providing a better understanding of brain chemistry. (TW)

Describes a procedure which enables students to estimate the volume of rock eroded from an area by using inferred and actual topographic and structural contours. Provides an example. (TW)

Questions a hypothesis from creation science dealing with mammals. Claims that, when tested, the hypothesis fails in two ways. (TW)

Discusses how problem-solving networks can be incorporated into courses. Reports on the development of a new style of pictorial network that can assist students in the handling of experimental data. (CW)

Discusses the recent influx of highly talented immigrant engineers and engineering students into the United States. Identifies some of the opportunities available and benefits to the U.S. economy, along with some of the perceived and real problems posed by this trend. (TW)

Describes the creation of the computer program "BOUNCE," designed to simulate a weighted piston coming into equilibrium with a cloud of bouncing balls. The model follows the ideal gas law. Utilizes the critical event technique to create the model. Discusses another program, "BOOM," which simulates a chain reaction. (CW)

Discusses a project approach to teaching students how to discover, evaluate, and employ some of the avenues available to them for raising concerns about ethical issues in engineering. (TW)

Explains how industry contacts are developed for mechanical engineering students at the Catholic University at Leuven, Belgium. Describes their aims, working conditions, results and the role of research. Discusses the importance of industry contacts in the education of future engineers. (CW)

Criticizes the way organic chemistry teaching laboratory experiments are approached from the viewpoint of physical chemistry. Compares these experiments to cooking. Stresses that what matters is not the practice of the finger skills of organic chemistry but practice in the style of thinking of organic chemists. (CW)

Describes an experiment for undergraduate chemistry laboratories involving a chemical found in plants and some sea animals. Discusses collection and identification of material, a hemolysis test, preparation of blood-coated agar plates, and application of samples. (CW)

Summarizes the results of the 1987 National Engineering Student Employer Preference Survey and compares them with those reported by three previous biennial surveys. Lists the top 25 employer choices in electrical, mechanical, computer science, industrial, chemical, civil and astro/aeronautical engineering. (TW)

Described is a mineral identification program which uses a shell system for creating expert systems of a classification nature. Discusses identification of minerals in hand specimens, thin sections, and polished sections of rocks. (Author/CW)

Discusses the differences between iron and copper. Describes various aspects of the behaviors of these two elements, including those of biological and environmental significance. Addresses the evolution of the atmosphere and sedimentary ore formation, the phylogeny of iron and copper, and some anthropological notes regarding the use of the metals.…