The Science Career Awareness Training (SCAT) program proved effective as a means of increasing knowledge about science careers and interest in science as a career for students in the late elementary school grades (grades 4-6). Thus, the SCAT program influenced the knowledge and motivation bases of career choices. However, participants in the…

Discussed is a radionuclide imaging technique, including the gamma camera, image analysis computer, radiopharmaceuticals, and positron emission tomography. Several pictures showing the use of this technique are presented. (YP)

The 21 essays in this two-part book provide conceptual and operational understanding of the nature of models as representations of reality and as tools for description, analysis, interpretation, and forecasting. Topic areas addressed in part 1 (concept) include: the nature of models; the earth as a system; the determination of form; some…