A chromatographic procedure for analyzing organophosphorus pesticides (such as PCB's, nitrosamines, and phthalate esters) in orange juice is described, including a summary of the method, instrumentation, methodology, results/discussion, and calculations. (JN)

The Office of International Science provides programs to determine how science and technology can be used effectively by developing nations. Programs include: a global committee on the subject, publication of a newsletter, sponsorship of symposia and meetings, and invitations to foreign students to attend American Association for Advancement of…

Describes the introduction of microprocessors into the Weapons and Systems Engineering Department at the U.S. Naval Academy, including planning decisions, implementation, procedures, uses of microprocessors in the department, and impact on the Systems Engineering major and curriculum. (SK)

Describes integration of Commodore PET microcomputers into the chemical engineering curriculum at the University of Rochester. Includes advantages of using microcomputers in laboratories to analyze data and control processes. (SK)

Provides information on collecting and maintaining termites and for using these insects in behavioral studies (trail following, recognition, food choice, reproductive behavior, and behavior in a magnetic field) and termite control experiments (preventive construction techniques, termite repellents, using soil or wood pretreatment, and the bait…

A two-semester basic chemistry course for nonchemistry engineering majors is described. First semester provides introductory chemistry for freshmen while second semester is "customer-oriented," based on a departmental choice of three out of six independent modules. For example, aeronautical engineering "customers" would select…

Results of a case study (one graduate physics tutor) demonstrate that a person's conceptions, which include metaphysical commitments, play a significant role in the way s/he understands complex subject matter such as Einstein's Special Theory of Relativity. (Author/SK)

Due to the expense of glass eye-piece grids and haemocytometers, suggests using a simple film grid (made from photographic film) in the same way as an eye-piece graticule is used. A diagram of the grid is provided as well as examples of its use. (JN)

Describes a low-cost instrument using a solar cell as a sensor to measure both instantaneous and integrated value of solar flux. Constructing and calibrating such an instrument constitutes an undergraduate experimental project, affording students an opportunity to examine a variety of aspects associated with solar energy measurements. (Author/SK)

Briefly describes different designs for college chemistry laboratories to help mobility handicapped students working in them. (SK)

Discusses low temperature heat transfer, transient heat transfer, and developments in steady state heat transfer. (SK)

Provides a summary of essential characteristics of the Personalized System of Instruction (PSI) and Programmed Logic for Automated Teaching Operations (PLATO) educational computer system. Considers future of the computer based education which effectively combines PSI with computer assisted instruction. Discusses current status and future use of…

Reviews approximately 300 journal articles to point out fundamental problems resulting from the introduction of the quantity "amount of substance" and the use of the unit "mole." Proposals are made for the solution of these problems in the light of the IUPAC definition of the mole. (Author/CS)

Reports results of a study which investigated student teachers' competency to diagnose pupil's answers for possible misconceptions. Suggests that teacher-training programs include specific training activities designed to develop this desired diagnostic competence. (CS)

Describes marine science education activities at the Hampton Institute, Johnson C. Smith University, Prairie View A&M University, and The University of the District of Columbia. Includes programs and degrees offered, and comments on special facilities and/or interests unique to each institution. (JN)