Concludes that in the laboratory, participants' conversation behavior is not discernably affected by videotaping, no matter how overt or obvious the taping procedure is. Study focuses on behaviors out of conscious awareness: gestures, head nods, speaking turns, self or object manipulations, and shifts to reclining posture or to forward lean. (PD)

It is desirable that the undergraduate pharmacy student gain some experience in the collection and mathematical treatment of pharmacokinetic data. An experiment to provide the student with data for obtaining pharmacokinetic parameters is described, including lists of materials and equipment, with a student consent form appended. (MLW)

Described is a demonstration utilized to measure the heat of vaporization using the Clausius-Clapeyron equation. Explained is that when measurement is made as part of a demonstration, it raises student's consciousness that chemistry is experimentally based. (Author/DS)

Provides procedures, apparatus, and pre- and postlaboratory questions for an inexpensive, unsophosticated experiment that determines the approximate value for Avogadro's number. (CS)

Discusses distillation of liquid mixtures with the emphasis on experimental work. A number of experiments, intended for chemistry secondary school teachers in the United Kingdom, are included. (HM)

Describes an experiment which makes use of a number of concepts from geometrical optics. The apparatus and method which is intended for students in elementary college physics classes are included. (HM)

Describes a student field project involving the estimation of a maximum rate of erosion for a local area. Identifies the factors influencing erosion and outlines the method of investigation. (GS)

Outlines steps to follow and recommends special features when selecting equipment for an engineering computer graphics laboratory. Expansion features are also discussed. Provides a systems checklist for software and hardware. (CS)

Provides information regarding spill control systems in chemical and biological laboratories. Various methods currently in use are described. Suggestions are made for the use of absorbents. (CS)

Describes a university-wide program directed at reducing the improper storage and disposal of toxic chemical wastes from laboratories. Specific information is included on the implementation of a waste pick-up service, safety equipment, materials and methods for packaging, and costs of the program. (CS)

Described is a "joke center" where elementary school students not only learned about various kinds of humor and practiced language skills but had a terrific week of laughter as they shared favorite jokes and made up new ones. (Author/KC)

Reviews materials from the ERIC database describing the variety of functions a high school reading lab can perform and suggesting ways to evaluate student improvement in the reading lab situation. (MKM)

Described is an apparatus for determining the Curie temperature of a Ferromagnetic material which enables large specimens to be heated up to a maximum of 1100K in 20 minutes. Included is the theory, magnetic circuit apparatus, electrical circuit, and results using this apparatus. (DS)

Presents and explains analytical procedures for the detection and quantitative enumeration of bacteria which constitute or are indicators of fecal contamination of aquatic environments. Tests are given for Escherichia coli, fecal Streptococci, Clostridium perfringens, and Salmonella. (WB)

Describes urinalysis techniques for dry weight measurement, examination of urinary calculi (stones), and determination of the presence of blood and blood pigments. Also presented are directions for preparing required reagents. (WB)