Hodgkin's disease and other malignant lymphomas

Systematic studies of the patterns of anatomic distribution, pathways of probable spread, and prognosis of the malignant lymphomas have been greatly aided by the development of new histopathologic classifications and the introduction of more sophisticated and precise diagnostic techniques, such as lymphangiography and laparotomy with splenectomy and retroperitoneal node biopsy. Concomitantly, megavoltage radiotherapy apparatus has made total-lymphoid radiotherapy feasible and practical, and the availability of a widening spectrum of chemotherapeutic agents has ushered in a new era of combination chemotherapy. Collectively, these diagnostic and therapeutic advances have already begun to yield a dramatic improvement in the prognosis of Hodgkin's disease and the other malignant lymphomas.

A computer evaluation of equations for predicting the potential across biological membranes

The Goldman, Henderson, and Planck junction potential equations can be used to describe the potential across the resting giant squid axon. These equations are used to calculate the relative Na, K, and Cl permeabilities of the squid axon using the experimental measurements of Hodgkin and Katz. The equations all provide excellent agreement with the observed data and yield similar permeability values.

Automatic identification and measurement of cells by computer

A visual-input computer system was used to automatically locate and perform measurements with high accuracy on single cells from microscopic slides. The nuclear radius, irregularity, area, and density of normal and malignant cells were automatically measured. These studies agreed with hand measurements showed differences normal and malignant cervical cells on Papanicolaou smears.