Describes an experiment that has been introduced in the organic chemistry laboratory program at Shepherd College, Shepherdstown, West Virginia. It illustrates microbial reaction and its role in the synthesis of vitamin C. (HM)

Presents a biochemistry experiment for college students that illustrates the purification of an enzyme. (HM)

Suggests an alternative to writing the traditional dissertation as a requirement for the doctorate in biology. Recommends the production of one or more journal journal-style manuscripts contributing knowledge in the field as a substitute. (MA)

Examines a number of factors that might influence performance in a college laboratory chemistry course. Compares the achievement and time for students doing a simulated or a laboratory experiment. Tries to identify differences in performance for students of different aptitude and possible interaction between types of experiment and student…

Describes two demonstration experiments for the chemistry laboratory: (1) Thermodynamic vs kinetic control and (2) Acid-Catalyzed Hydrolysis of Starch. (MA)

This first in a series of articles describing the state of the art of various branches of chemistry reviews inorganic chemistry, including bioinorganic, photochemistry, organometallic, and solid state chemistries. (SL)

A computer program which simulates an interstellar gas and dust cloud has been used to study Kirchhoff's laws of spectral analysis in introductory astronomy courses. The model parameters can be varied to stimulate various effects observed in actual clouds. Students are given exercises to use the program in a manner similar to a lab experiment.…

Explains the inertia ball demonstration qualitatively. For the advanced level the demonstration is treated as a forced harmonic oscillator and the results verified analytically. Computer-generated graphs show that with a rapid pull, the upper cord may break, or the upper and lower cords may break simultaneously. (Author/GA)

Calculates the energy-band structure of noninteracting electrons in a one-dimensional crystal using exact and approximate methods for a rectangular-well atomic potential. A comparison of the two solutions as a function of potential-well depth and ratio of lattice spacing to well width is presented. (Author/GA)

Describes a liberal arts physics course for all majors interested in holography or to satisfy the general education requirements. An outline of the course and some experience of offering it are given. (Author/GA)

A number of phase transfer catalysis reactions are illustrated. (CP)

Proposes use of the Hammett relationship in the framework of a frontier orbital method for explanation of chemical reactivity. (CP)

The work output of a human body in various tasks and the biochemistry of oxygen consumption in muscles is discussed. (CP)

Describes three different courses in physics at three different institutions Physics and electronics for four years heading to a joint-honors degree, physics of the senses as an optional unit for one year, and a course system to allow flexibility in timetable and freedom of choice. (GA)

A demonstration to illustrate sum and difference frequencies of a nonlinear device is explained. (MDR)