A Response to "How to Sacrifice Academic Quality"
Abstract Editors' Note: The above article is a re-joinder to “How to Sacrifice Academic Quality,” which appeared in the Spring 1979 issue of Improving College and University Teaching. The editors welcome thoughtful responses to any article appearing in the journal.
Effective Teacher Evaluation
It is now recognized that there are almost as many learning styles as there are learners. Today's teacher is faced with the difficult task of developing a multidimensional system to evaluate his teaching effectiveness.
One hundred percent tumor induction in mouse skin after repeated beta irradiation in a limited dose range.
Repeated beta irradiation of the backs of mice three times a week with radiation doses of 250 to 1180 cGy per exposure induced 100% incidence of tumors. The incidence of skin tumors appeared to be determined by the total number of repeated exposures in this dose range. An abrupt delay in tumor emergence was observed when the radiation dose was reduced from 250 to 150 cGy per exposure, indicating the existence of a critical threshold. Mouse skin resembles human skin rather than rat skin in its response to radiation.