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Biomedical subjects

R Forsyth

Publications and source records attributed to R Forsyth.

25 records · Page 2Linked to original sources
PubMed1980

Variability in nasal resistance measurements.

By means of computer-aided posterior rhinometry, nasal airflow resistance was measured in subjects with normal and abnormal noses. Variations were less than obtained by other methods. Subjects were exposed to several common stimuli which have been reported to induce nasal mucosal changes: exercise, mechanical irritation, air pollutants, and climatic extremes. Any resistive effects were of short duration in that they could no be detected 30 minutes after exposure, but a commonly used decongestant reduced nasal resistance for several hours. Computer-aided rhinometry provides a basal level of nasal patency. Its clinical usefulness, now being tested, will be reported later.

Air Pollutants↗
PubMedDate not supplied

Junction road accidents during cross-flow turns: a sequence analysis of police case files.

In-depth studies of behavioural factors in road accidents using conventional methods are often inconclusive and costly. In a series of studies exploring alternative approaches, 200 cross-flow junction road accidents were sampled from the files of Nottinghamshire Constabulary, UK, coded for computer analysis using a specially devised Traffic Related Action Analysis Language, and then examined using different computational and statistical techniques. For comparison, the same analyses were carried out on 100 descriptions of safe turns, and 100 descriptions of hypothetical accidents provided by experienced drivers. The present study employed a range of sequence analysis techniques to examine the patterns of events preceding accidents of different types. Differences were found between real accidents, hypothetical ones and safe turns; between accidents turning onto and off a road with the right of way; between the accidents of younger and older drivers; between accidents on minor roads and major roads; and between the accident expectations (but not the real accidents) of male and female drivers. Pairs of successive events often provided particularly good cues for discriminating accident types.

Accidents, Traffic↗