Describes use of tail muscles and spinal cord in the tadpole as an alternative source for muscle-and-nerve experiments. Includes explanation of simple dissection and preparation of tadpole; instructions for experiments such as threshold, strength of stimulus, frequency of stimulus, single twitch, tetanus, fatigue, effects of temperature on…

Describes use of electronic model to simulate electrical patterns resulting from nerve cell interactions in the brain. Resembles nerve cell activity realistically in that the model produces signals above a set threshold, its firing activity varies, a refractory period is required before second firing, and it displays plasticity. (CS)

Diagrams and explains construction of an actograph which quantitatively records daily movements of animals for a 24-hour period. Combines use of a kymograph and the teetering box of Palmer. Biorhythm activities with fiddler crabs, cockroaches, and hamsters are suggested. (CS)

Cites statistics on undergraduate and graduate study in chemistry and chemical engineering at higher education institutions approved by the American Chemical Society. (MLH)

Outlines techniques used in teaching a course in "life-line" ethics, in which the events of conception, birth and death are related to ethical issues of abortion, suicide, euthanasia, etc. Several modes of actively involving students are described. Lists seven reference for information on bioethical issues. (CS)

Presents short articles on: display of line spectra, calorimeters, filling balloons from gas jets, and digital mini-module systems. (MLH)

Describes the summer program for minority students conducted at the Fermi National Accelerator Laboratory. (SL)

As a result of the inefficiency of lectures, the increase in scientific knowledge, and today's cooperative work environment, several written assignments for teams were designed for chemistry students. Assignments consist of fundamental topics and definitions eliminated from lectures. Benefits besides the group experience included better textbook…

Proposes a foundation for the design of an online learning environment being developed at the University of New England (Australia) for the acquisition of metacognitive problem solving skills in science. Discusses instructional design guidelines for developing learning environments that supply cognitive support to strengthen metacognitive and…

Presented is a hand model which can be used to compare and contrast mitosis and meiosis. Features and procedures of the technique are detailed. Limitations of the models are discussed. (CW)

The advantages and justifications for using small animals in human-oriented research are reviewed. Some of the pitfalls of extrapolating animal-derived data to humans are discussed. Several specific problems with animal experimentation are highlighted. (CW)

Discussed is a common error made by students in judging the distribution of the magnetic field of a circular loop along its diameter. Qualitative and quantitative explanations of the magnetic field distribution are presented. (CW)

Statistics on the nature of academic physiology departments are provided. Included are salaries by number of years, rank, and region, numbers of faculty members, and numbers of pre- and postdoctoral trainees in process and completing degrees in the year 1989. (CW)

Described is a seminar designed for graduating senior chemical engineering majors. The class structure, schedules, goals and objectives, homework assignments, course grading, and student comments are discussed. Listed are a questionnaire for evaluating mock interviews, talk topics, and job selection criteria as developed by the students. (CW)

Described is a laboratory experiment designed to expose students to problem-solving methods individually and as a group. Included are background information, a list of materials, laboratory procedures, analysis methods, and probable results. (CW)