The relationship of father absence and antisocial behavior to social egocentrism in adolescent mexican american females

This study investigated the relationship of family structure (father absence and intact) and the level of antisocial behavior (high and low) to social egocentrism in adolescent Mexican American females. The results indicated that high antisocial females had significantly higher egocentrism scores than low antisocial females. No main effect was found for family structure. A significant interaction was found between antisocial behavior and family structure, indicating that the high antisocial-father absent group had the highest egocentrism scores among the four groups.Received her Ph.D. from the University of Southern California in 1978. Current interest is child abuse.Received his Ph.D. from Indiana University in 1968. Current interests are adolescent socialization and cognitive development.     

Elimination of Bioweapons Agents from Forensic Samples During Extraction of Human DNA

Collection of DNA for genetic profiling is a powerful means for the identification of individuals responsible for crimes and terrorist acts. Biologic hazards, such as bacteria, endospores, toxins, and viruses, could contaminate sites of terrorist activities and thus could be present in samples collected for profiling. The fate of these hazards during DNA isolation has not been thoroughly examined. Our goals were to determine whether the DNA extraction process used by the Royal Canadian Mounted Police eliminates or neutralizes these agents and if not, to establish methods that render samples safe without compromising the human DNA. Our results show that bacteria, viruses, and toxins were reduced to undetectable levels during DNA extraction, but endospores remained viable. Filtration of samples after DNA isolation eliminated viable spores from the samples but left DNA intact. We also demonstrated that contamination of samples with some bacteria, endospores, and toxins for longer than 1 h compromised the ability to complete genetic profiling.