High haloperidol concentrations in a traffic suicide

High concentrations of haloperidol are seen in a psychiatric patient who ran from a health care facility into traffic. Haloperidol concentrations were found to be 1.2 mg/L in heart blood, 2.7 mg/L in brain, and 10.8 mg/L in liver. No other drugs were detected.     

Statistical evidence for the individuality of the human dentition

A general population sample of bite marks in wax is used to demonstrate mathematically the individuality of the human dentition. The general principles of probability are discussed and applied to the analysis of teeth using a precise method of measurement. The unique nature of the human dentition is confirmed.     

Adolescent Sexual Onset: An Intergenerational Analysis

Adolescents have begun to initiate sexual activity at increasingly early ages in the past few decades. Using a sample of 2,494 adolescents from the National Longitudinal Survey of Youth (NLSY97), structural and parental process variables were examined in the prediction of sexual onset. Results indicated that the age at which youth initiate sexual intercourse is related to the structural characteristics of their grandmothers and mothers, as well as puberty, gender, and race. There is support for partial mediation of the effects of these grandmother characteristics via mother characteristics and parental process. Results are discussed within the framework of the life course perspective and provide support for the importance of previous generations in the explanation of adolescent sexual behavior. Implications for families and adolescents are also addressed. Katherine A. Johnson, is a doctoral student at the University of Nebraska–Lincoln. Her research interests include the study of crime, gender, and high-risk youth using both qualitative and quantitative methodology. Kimberly A. Tyler, is an associate professor in the Department of Sociology at the University of Nebraska–Lincoln. Her research interests include homelessness, child abuse and neglect, victimization, and high-risk behaviors among adolescents and youth.