Discusses the potential use, by students in cell biology and plant physiology, of isolated chloroplasts for determining the Emerson enhancement effect. The experiment designed to measure spectrophotometrically the photoreduction of a dye by illuminating chloroplasts with short- and long-wavelength light is presented. (HM)

A level of organization schema is presented which uses the concept of the organism as the pivotal unit and emphasizes biological relationships. (BB)

Describes a laboratory experiment designed to give beginning physiology students a successful experience with neurophysiological Techniques and to demonstrate some properties of sensory neurons. Pin electrodes are used to record extracellularly from mechanoreceptors in a cockroach leg. (Author/MA)

Goals, scheduling, and grading of a college-level individualized aerobics course are discussed. (MJB)

Central auditory function was assessed in 10 stutterers and 10 nonstutterers between the ages of 10 and 35 years, and the performance of the two groups compared for seven audiometric procedures, including acoustic reflex threshold and acoustic reflex amplitude function. (Author)

This report summarizes preliminary results from a behavioral study of 13 male infants who were ascertained to have an XX Y sex chromosome complement at birth and who are being followed longitudinally through early ontogenesis. (CM)

These two problem sets are useful in introducing this material to students with widely divergent backgrounds in biological and physical sciences. (BB)

A review of research on the three types of auditory disorders, concentrating on inefficient learning which results from problems in auditory processing. (DD)

Honest discussion of the fact of death with children is essential in helping them to accept and face it. (JD)

Regular vigorous physical exercise is probably as important as diet and insulin in the control of diabetes; the controlled diabetic should be encouraged to participate fully in almost any activity in which he or she is interested. (JD)

Several traditional phonetic theories are explained and discussed. It is asserted that recent advances in knowledge of speech production and speech perception show that these theories are descriptively inadequate and that physiologic principles may instead structure phonetic feature theories. (Author/RM)

Presents annotated abstracts of 630 papers relating to research in physiology presented in the 1977 meeting of the American Physiological Society. (SL)

Offers perspectives on the role of extrinsic factors in the aging process, the long-term consequences of extrinsically initiated changes, and implications for gerontological research. Explains the distinction between usual and successful aging in light of physiologic and psychosocial characteristics. (ML)

Describes some examples of chemical and industrial applications of enzymes. Includes a background, a discussion of structure and reactivity, enzymes as therapeutic agents, enzyme replacement, enzymes used in diagnosis, industrial applications of enzymes, and immobilizing enzymes. Concludes that applied enzymology is an important factor in…

Conveys an appreciation of enzyme kinetic analysis by using a practical and intuitive approach. Discusses enzyme assays, kinetic models and rate laws, the kinetic constants (V, velocity, and Km, Michaels constant), evaluation of V and Km from experimental data, and enzyme inhibition. (CW)