R. M. Ritchie

Tree Stability in Relation to Cyclic Loading (1993)

O'SULLIVAN, M. F., RITCHIE, R. M.

The mechanical behaviour of the soil-root systems of Sitka spruce trees growing on a peaty gley was measured under cyclic loading, using a specially designed apparatus. The trees were felled at a...

Root Extraction Force Measurements for Sitka Spruce (1989)

ANDERSON, C. J., COUTTS, M. P., RITCHIE, R. M., CAMPBELL, D. J.

Extraction force and displacement were measured on roots pulled horizontally from the sides of a pit made in the soil after removal of the tree and the bulk of its root system. Measurements were made...

The Teaching of Psychiatry as Applied to Pediatrics: Proposals Based on a Report Prepared by the Education Committee, Canadian Paediatric Society

Martin, J. K., Pearlman, L. N., Rathbun, J. C., Ritchie, R. M., Ross, A. S., Royer, A., ...

With changing patterns of pediatric practice, the practising physician needs to acquire a deeper understanding of the emotional and intellectual development of the child. Skill is also required in...