Discusses the role of the Francis Bitter National Magnet Laboratory of the Massachusetts of Technology, and its significance in the world of research. Applications of research on magnetism to medicine are emphasized. (SA)

Reviews the pros and cons of using animals or alternatives in scientific research. Such alternatives (as indicated in congressional bill HR 556) include mathematical models, isolated organs, tissue and cell cultures, computer simulations, mechanical models, and "lower" organisms among others. (SK)

Describes a simple, inexpensive experiment for extraction of synthetic dyes permitted in foodstuffs, and their separation and identification using thin-layer chromatography and ultraviolet/visible spectroscopy. (Author/SK)

Presents a model for dealing with architectural barriers to the physically disabled. The model considers the identification and removal of barriers in school buildings and vocational education laboratories. The article also discusses how to remove attitudinal barriers held by vocational education teachers. (CT)

A set of ions is selected (by computer program available from author) for each student in this qualitative analysis course. Students work out a separation scheme based on results of their experimentation and using selected references. Course methodology, preparation of solutions/unknowns, grading, and student responses are discussed. (Author/SK)

Describes several undergraduate deuteriation experiments using deuterium oxide as the source of label, including general and specific procedures. (SK)

This collection of notes describes (1) an optoelectronic apparatus for classroom demonstrations of mechanical laws, (2) a more efficient method for demonstrated nuclear chain reactions using electrically energized "traps" and ping-pong balls, and (3) an inexpensive demonstration for qualitative analysis of temperature-dependent resistance. (CS)

In a student initiated experimental program, undergraduate students assumed full responsibility for planning, staffing, and running introductory psychology laboratories. They supervised six sessions demonstrating psychological principles. The results of post-session quizzes and questionnaires showed that students absorbed course material, enjoyed…

Describes a simple hydraulic simulator based on more complex models long used by engineers to develop approximate solutions. It allows students to visualize non-steady transfer, to apply a model to solve a problem, and to compare experimentally simulated information with calculated values. (Author/MA)

Discusses immunological methods used to demonstrate or verify relationships between species of animals. (HM)

The use of simple diagrams for instruction of first-year operative dental students is encouraged. A series of illustrations for Class I preparation of cavities, focusing on walls, line angles and point angles, is presented and its use described. (MSE)

Discusses the importance of avoiding welding fumes. The sources of these fumes are presented in a table. Criticizes currently used ventilation systems and reviews the Occupational Safety and Health Act requirements. Describes a low-cost exhaust system developed for agricultural mechanics laboratories. (LRA)

Provides a systematic presentation of methods of standard addition in instrumental analysis in spectrophotometry, atomic absorption, and electrochemistry. (CS)

Describes an advanced high school physics experiment demonstrating rotational kinematics and dynamics, using simple equipment such as empty coffee cans, inclined planes, meter sticks, and a large 10-second demonstration timer. (CS)

Describes some practical exercises involving the glutamine synthetase enzyme of Beneckea Natriegens. (CS)