Today's topics:

(1) IEEE Engineering in Medicine and Biology articles

(2) Symbolic Algebra review paper available

(3) Epidemiological data

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(1) IEEE Engineering in Medicine and Biology articles

Upon scanning last year's issues of IEEE EMB, the following articles I found

rather interesting:

Special Issue on Intelligent Systems (June 1988):

Richard Shiavi (Vanderbilt University), Factors in Automated Gait Evaluation.

[other articles: Knowledge-based Techniques in Instrumentation; Intelligent

Medical Instruments; Knowledge-based Signal Processing in the Decomposition of

Myoelectric Signals; Artificial Intelligence in Medical Consultation Systems -

a Review; A Knowledge-based System coupled to a Mathematical Model for Inter-

pretation of Laboratory Data].

Special issue on Rehabilitation Engineering (September 1988):

Roy B. Davis (Newington Children's Hospital), Clinical Gait Analysis.

[other articles: Current Status of Rehabilitation Engineering/Technology;

Rehabilitation Engineering: Towards a Systematic Process; Biomechanical Quan-

tification for Assessment and Diagnosis of Dysphagia; Advances in Wheelchair

Technology; Technological Devices for Deaf-Blind Children: Needs and Potential

Impact; Rhythm Perception Equipment for Skin Vibratory Stimulation; Control

Law Decoupling for 2-D Biped Walking System].

Special Issue on Supercomputing (December 1988):

R.T. Hart et al. (Tulane University), Supercomputer Use in Orthopaedic Bio-

mechanics Resaearch: Focus on Functional Adaptation of Bone.

[other articles: Perspectives in Biomedical Supercomputing; Supercomputing

in Medical Imaging; Supercomputing Applications in Molecular Modeling; Super-

computing in Molecular Biology: Applications to Sequence Analysis; Large Scale

Simulations of the Hippocampus].

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(2) Symbolic Algebra

In a CWI-Newsletter of 1988 (CWI - Centre for Mathematics and Informatics,

Amsterdam), an interesting paper "Overview of Symbol Manipulation" was presen-

ted by Stanley Steinberg (University of New Mexico). The paper describes cur-

rent possibilities of symbolic algebra and a number of packages in this area

(Macsyma, DOE Macsyma, Maple, Mathematica, Reduce, SMP, and Scratchpad II).

The introductory paragraph is quoted here; those of you who are interested

can obtain a LaTex source file from me by direct email (NOT via BIOMCH-L).

Introduction

The idea of using a computer to manipulate symbols has been around as

long as the idea of using computers to manipulate numbers. Currently

there are many areas in which computers are used to manipulate symbols;

for example, text processing, artificial intelligence and computer

algebra. The interest here is in programs that do symbolic

mathematics, that is, programs that do many of the nonnumeric

calculations from high school algebra, university calculus, ordinary

differential equations and many other calculations usually thought of

as being the exclusive domain of humans. The programs that perform such

calculations are frequently called symbol manipulators. Symbol

manipulators were certainly capable of doing interesting problems in the

early 1960's; though used extensively, they are just now gaining general

acceptance by the computing public. It appears that recent improvements

in software and hardware will encourage more extensive use of the symbol

manipulation technology. For a far more detailed discussion of symbol

manipulation and symbol manipulators see the text by Buchberger (refer-

ences below).

Symbol-manipulation programs can be conveniently divided into two

categories; special and general purpose. The interest here is

in general purpose symbol manipulators, but it is important to realize

that special purpose programs have played a crucial role in

certain scientific areas. Symbol manipulators have made

significant contributions to a wide range of problems, as a brief look

at the conference proceedings listed below will show. The articles by

Elvey, Ogilvie, Pavelle et. al., Steinberg, and Stoutemyer provide a

more detailed overview of general purpose symbol manipulators than will

be given here.

The newest book quoted by Steinberg is "Computer Algebra: Systems and Algor-

ithms for Algebraic Computation" by J.H. Davenport, Y. Siret & E. Tournier,

Academic Press 1988. Applications in Biomechanics and Kinesiology are typi-

cally in the areas of multiple-segment, inverse dynamics modelling and of

sensitivity/error propagation analysis.

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(3) Epidemiological Data

Following my requests earlier this month, I have not received any information

on Epidemiology of the Motor System via email channels. Clearly, such infor-

mation is rather scanty. Anyone having such details...?

End of Biomch-l 1989/3

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