Describes a set of experiments that uses a low-power gas laser to demonstrate difficult physical and mathematical concepts. (MLH)

Various approaches to the standardization of pH meters are compared and the limitations of each are pointed out. (BB)

Tests of the predictivity of the biorhythm theory using 30 staff members of a psychiatry service and 50 patients of a college health center showed low correlations between the observed and predicted feeling states. Most were not statistically significant. (BB)

Describes a librarian's three-month experience exploring the potential for a career as an information broker in the Minneapolis-St. Paul, Minnesota, area. Some consideration of business aspects is included. (JD)

This course presents the student with a performance approach to biology. Each technique is covered in standard lecture format and in guided, independent laboratories. Examinations and grading are competency-based and require knowledge of both the use and limitations of the techniques. (BB)

Describes some laboratory exercises using the mole crab, Emerita talpoida, as an experimental animal for the study of osmoregulation. (GA)

Simple activities are described which use paper clips and straws or a board to demonstrate the properties of the lever. (BB)

Discusses the use of laser spectroscopy in determining the presence of specific gaseous constituents. Three of currently used modes for laser detection of pollution are reviewed; (1) long-path measurements; (2) laser raman (differential absorption) measurements; and (3) optoacoustic detection. (HM)

Describes a currently used picosecond spectroscopy system capable of reliably recording picosecond events. Two areas of picosecond research are discussed: one concerns the interaction of electrons in fluids; the second, the primary events in vision. (Author/HM)

Describes an undergraduate experiment of research potential. The experiment cconsists of measuring the time of contact of a metal rod bouncing on a steel base as a function of the velocity of impact, length, diameter, and material of the rod. (GA)

Describes a thermocouple circuit used to measure Joule heating as well as Peltier heating and cooling for a copper-Constantan metallic junction. Shows how the Seebeck effect from a thermocouple can monitor the temperature condition of a junction with regard to input power and Peltier effect. (Author/GA)

Describes the various attempts, efforts and experiments that were carried out by the leading investigators in the field in their search for electromagnetic induction phenomena. (GA)

In an experiment conducted with southern white college students, a sex-neutral task was used to test male-female paired students for dominant behavior. Males were found to challenge their partners' opinions far more than females were, even though the task was not one culturally defined as either masculine or feminine. (GC)

In an experiment designed to determine the role of body part attitudes in self-concept, females demonstrated greater knowledge of their inner body and attached greater importance to their body parts than did males. However, inner body parts attitudes predicted self-concept for males, but not for females. (Author/GC)

Two experiments were conducted with rats to investigate variables responsible for the effectiveness of using a safe platform in two-way avoidance training and to evaluate the relative efficacy of several theoretical positions (conflict reduction, reinforcement, and freezing attenuation) that were offered to explain the wide differences in…