Notices

Kinanthropometry III. Proceedings of the VIII Commonwealth and International Conference on Sport, Physical Education, Dance, Recreation and Health. T. Reilly, J. Watkins and J. Borms (eds), E. &; F.N. Spon, London, 1986, xii + 312 pp, £25 (hb), ISBN 0 419 13970 2

Sensible fitness. J.H. Wilmore, Human Kinetics, Champaign, Illinois, USA, 1986, xii + 300 pp, $11.95, ISBN 0 88011 270 0

Running without fear. K.H. Cooper, Bantam Books, London, 1985, 256 pp, £3.95, ISBN 0 553 17356 1

Athletic training and sports medicine. American Academy of Orthopaedic Surgeons, Churchill Livingstone, Chicago, USA, 1986. viii + 602 pp, £40, ISBN 0 89203 002 X

Athletics and the heart. R. Rost, Year Book Medical Publishers Inc., Chicago, 1987, vii+159 pp, £21.50 (pb), ISBN 0 8151 7397 0

Psychology and sociology of sport: current selected research, Volume 1. L.V. Velden and J.M. Humprey (eds), AMS Press, New York, 1986, ix + 237 pp, £49.50 (hb), ISBN 0 404 63401 X     

A simple classroom teaching technique to help students understand Michaelis-Menten kinetics

A new, simple classroom technique helps cell biology students understand principles of Michaelis-Menten enzyme kinetics. A student mimics the enzyme and the student's hand represents the enzyme's active site. The catalytic event is the transfer of marbles (substrate molecules) by hand from one plastic container to another. As predicted, increases in marble concentration increase the number of marbles transferred per unit time (initial rate, V(0)) until the turnover number becomes rate limiting and V(0) approaches the maximum velocity (V(max)), as described by the Michaelis-Menten equation. With this demonstration, students visualize an important concept: the turnover number is constant and independent of marble concentration. A student assessment of this exercise showed that it helped students visualize the turnover number and V(max) but not K(m), the marble concentration at which V(0) is one-half V(max). To address the concept of K(m), we use supplemental laboratory and lecture exercises. This exercise with plastic containers and marbles is equally suited to demonstrate the kinetics of carrier-mediated membrane transport. We conclude that this exercise helps students visualize the turnover number and V(max) and gives students important insights into the kinetic parameters used to characterize the catalytic activity of enzymes and membrane transporters.     

An Evaluation of the Progress,Experience and Employability of Mature Students on the BEd Course at Westminster College,Oxford

There are many adults who left school without A levels who wish to further their education as mature students. Because many of these adults are being accepted by colleges without traditional A levels, and with very few GCSE/O level subject passes, it has been suggested that their acceptance as students may lower the standard of the college courses. This paper evaluates the qualities which mature and non‐traditional entry students bring to college courses, and concludes that their results compare favourably with those of traditional entry students. Many mature students appear to have needs in common with other students and meeting these needs would result in better practice within institutions of higher education (HE). However, mature students also have specific needs which are evaluated in this paper. Most require little additional expenditure, but are rather a matter of will and organisation on the part of the institution and tutors. Entry as mature students onto BEd courses seems to be particularly attractive to women but some of them experience difficulty in finding employment. The data collected demonstrate that maturity is likely to be a positive attribute and the mature applicant for a post to be a ‘quality product’.     

Hands-on Computer Use in Science Classrooms: The Skeptics Are Still Waiting

Journal of Science Education and Technology -