The purpose of the study is to provide information concerning the self esteem of blacks and whites under conditions of integrative and segregative simulated work groups. Subjects were 96 undergraduate students, half black and half white, who performed three laboratory tasks. Ziller's self esteem scales were used to measure the self esteem of…

This publication, published quarterly by the American Institute of Biological Sciences, focuses on biology education in colleges and universities. Included in this issue are articles dealing with mini-investigative labs in microbiology for nonscience students, the effects of various components of the Keller system on student attitudes and…

Describes a number of undergraduate laboratory experiments that illustrate the science of alchemy as it was historically practiced. (MLH)

Describes a dry-lab experiment in which the student is provided with a set of fluorescence spectra of quinine for study and interpretation. (MLH)

Describes undergraduate experiments concerning three topics: oxygen carriers, nitrogen fixation, and metal activated enzymes. (MLH)

Describes a simple microwave interferometer capable of measuring small phase shifts. Proposes laboratory exercises involving the use of the interferometer in the determination of refractive indices of gases and the analysis of the reflection in a test chamber. (Author/CP)

Presents three activities: (1) the investigation of the purity and stability of nicotinamide and flavin coenzymes; (2) desk-computer fitting of a two-exponential function; and (3) an interesting and inexpensive solubility product experiment for introductory chemistry. (RH)

Describes an experiment in which a racemic mixture of a coordination compound is resolved. (MLH)

Describes an experiment which quantitatively determines glucose by a spectrophotometric measurement of the colored complex formed between glucose and an amine. (MLH)

Describes the electronic circuitry which can be used to demonstrate the buildups of Poisson distributions with very high precision. Analysis of the data obtained is included in the paper. (CP)

Describes an undergraduate experiment that illustrates the use of thin-layer chromatography. (MLH)

The evolution of a laboratory oriented undergraduate plasma physics course is described. Brief accounts of the 14 experiments utilized in the course are provided. (CP)

Describes experiments, demonstrations, activities and ideas relating to various fields of chemistry to be used in chemistry courses of secondary schools. Three experiments concerning differential thermal analysis are among these notes presented. (HM)

Describes a computer-based instructional model for the physiology laboratory. Attempts to develop an efficient and low-cost system designed to provide dynamic student/machine interaction are discussed. (MA)