Describes three computer programs designed to control and execute standard methods for paired associate learning. They can be used in classroom demonstrations or laboratory exercises in experimental psychology. (RM)

Literature on ion-selective electrodes (ISEs) is reviewed in seven sections: books, conferences, reviews; potentiometric membrane electrodes; glass and solid-state membrane electrodes; liquid and polymer membrane ISEs; coated wire electrodes, ion-selective field effect transistors, and microelectrodes; gas sensors and selective bioelectrode…

This review, designed to make analysts aware of uncertainties introduced into analytical measurements during sampling, is organized under these headings: general considerations; theory; standards; and applications related to mineralogy, soils, sediments, metallurgy, atmosphere, water, biology, agriculture and food, medical and clinical areas, oil…

This review on infrared spectrometry covering the period from late 1981 to late 1983, is divided into nine sections. Topic areas include: books; reviews; analytical applications; biochemical applications; environmental applications; polymer applications; infrared instrumentation; sampling techniques; and software and algorithms. (JN)

Describes an undergraduate experiment for the potentiometric determination of urea based on the physical entrapment of urease on the tip of an ammonia gas sensor. An advantage of this technique is the ease with which the ammonia electrode can be converted to a urea electrode. (JN)

Describes a variety of laboratory experiments including carbon dioxide reduction, animal respiration, atmospheric pressure determination, and others, that can be performed using discarded syringes. (GS)

Describes an experiment that utilizes an acidic ion-exchange-chromatography column to separate two cobalt complexes. (MLH)

Discusses some current research on hemoproteins, describes the process of metal replacement in hemoproteins, and reviews the preparation of cobaltmyoglobin. (MLH)

Describes an experiment in which two organic compounds having the same nmr spectra are identified by their differing mass spectra. (MLH)

Describes an experiment in which the photooxidation of methionine using free methylene blue as the sensitizer is applied to the isolated amino acid or to the methionyl residues of a complex polypeptide. (MLH)

Discusses ten methods for measuring the thermal expansion of solids and the way in which the expansion coefficient relates to other properties of matter. (MLH)

Discusses the teaching potentialities of scaler-timers in the physics laboratory, and describes the circuitry and design of scaler-timers. (MLH)

Discusses the difficulty of explaining the concept of entropy, and provides exercises, experiments, and discussions concerning entropy. (MLH)

Suggests several mechanisms for catalysis by metal ion complexes. Discusses the principal factors of importance in these catalysis reactions and suggests reactions suitable for laboratory study. (MLH)

A new type of student-teacher supervision, the tutor-supervisor concept, has been initiated at Murdoch University in Australia. (SK)