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Biomedical subjects

J Gerrard

Publications and source records attributed to J Gerrard.

23 records · Page 2Linked to original sources

Effect of maternal parity and infant sex upon the haematological values of cord blood.

Coulter Counter (Model S) analysis of 400 cord blood samples are presented, together with differential white cell counts for 249 of these. The mean values for haemoglobin and red cell count are somewhat higher than previous values determined by manual methods, while those for haematocrit and mean cell volume are slightly lower. An unexpected finding was that the red cell count, haemoglobin concentration, and haematocrit, are significantly higher in male than in female infants. A parity effect was also demonstrated: infants of both sexes born as second or subsequent births had lower values for total white cell count, haemoglobin concentration and haematocrit, than first-born infants.

Birth Weight↗

A microcomputer measuring system applied to real-time ultrasound video imaging.

The high-resolution graphics facility of a microcomputer has been synchronized with real-time ultrasound images on a television monitor, allowing quick and accurate measurements of linear distances, are lengths, perimeter lengths, and areas, whether regular or irregular in shape. No particular knowledge of computers is required, as the program gives step-by-step directions. However, the full facilities of a 48K microcomputer using BASIC language remain accessible, which is a considerable advantage over equivalent measuring systems currently available.

Computers↗