Evaluating HIV/AIDS education in the university setting.

Surveys to determine learning and behavioral changes that result from education about human immunodeficiency virus (HIV) and acquired immune deficiency syndrome (AIDS) should be constructed to account for high levels of background knowledge and knowledge of safer sex practices among college students. This article evaluates the learning and behavioral changes of students enrolled in an HIV/AIDS education course offered by the Department of Biological Sciences at Rutgers University as part of a university-wide HIV/AIDS education program. Responses of students in the HIV/AIDS class were compared with those of students enrolled in other biology classes, using paired and unpaired t tests and multivariate discriminant analysis.

The mediation of mutagenicity and clastogenicity of heavy metals by physicochemical factors.

Heavy metals are an important class of environmental hazards, and as the use of heavy metals metals in industry continues to increase, larger segments of the biota, including human beings, will be exposed to increasing levels of these toxicants. As many heavy metals are mutagenic and clastogenic, they cause teratogenic and/or carcinogenic effects. Studies with microbes and representatives of the aquatic biota have shown that the toxicity of heavy metals is mediated by the physicochemical characteristics of natural environments.