Technical Digest

Research and Development Updates
Volume 4, Number 1 (January–March 1983)

Editorial W. G. Berl

The Active Magnetospheric Particle Tracer Explorers Program S. M. Krimigis, G. Haerendel, R. W. McEntire, G. Paschmann, D. A. Bryant

Anomalous Microwave Propagation Through Atmospheric Ducts H. W. Ko, J. W. Sari, J. P. Skura

Radiation Therapy Physics D. G. Grant

SPECIAL TOPICS Ralph Edward Gibson (1901–1983) A. Kossiakoff

Some Thoughts on Planning – The Handmaid of Direction R. E. Gibson

The Nineteenth International Symposium on Combustion R. M. Fristrom

MISCELLANEA Publications, Presentations, and the Authors