Reports on a research study in which college students used a statistical ordination method to reveal relationships among plant community structures and physical, disturbance, and spatial variables. Concludes that polar ordination helps students understand the methodology of plant geography and encourages further student research. (CFR)

Analyzes the variation in the risk of Acquired Immune Deficiency Syndrome (AIDS) in U.S. Blacks, Hispanics, and other racial/ethnic minorities relative to that in Whites by geographic area and mode of infection. Uses data reported to the Centers for Disease Control, and 1980 U.S. Census Data. (FMW)

Reintroduces and updates the geographic profile as a visualization technique for representing and analyzing the structure of geographical information. A computer software-generated profile focuses on specific information (persons per square mile in selected cities) and represents that information spatially on a graph. (MJP)

Trend data show that while the numbers and proportions of undereducated youth are falling, undereducation in the eighties, especially among minority youth, is considerable and persistent. This study uses a population-based definition of undereducation for which trend data are available for Whites and Blacks, beginning in 1967, and for Hispanics in…