45 certainty about Federal policy concernÂ- the University of Alabama cardiac inÂ- ing the support of training contribute tensive care monitoring system on “obÂ- to these difficulties. The problems are solete 1800 computers.” Another reÂ- too broad and too complex to address sponded most efficaciously pointing out here. They are difficult for both acaÂ- that it is too bad that people lose sight of demia and government, and warrant the fact that a system on which a proÂ- the active concern of the entire research gram is developed will always be able community. to do the job; change is not indicated Dr. Robert Macey introduced to the until the system ceases to be appropriÂ- ate. conference the exciting world of model development describing an application In another vein, the question opens to the area of membrane transport. The up a wide range of problems that can be discussion of his paper exposed the probÂ- summarized as problems in the diffusion lern the modeler has of gaining acÂ- of computer-based technology. At this ceptance of his particular approach, but juncture biomedical computing joins all mainly it provided a taste of the intellecÂ- the rest of biomedicine. The problems of tual excitement that modeling generates diffusion of advances in health research, among both doers and observers.