Sexual dimorphism in the crania and mandibles of South African whites

Numerous studies have clearly demonstrated that skeletal characteristics vary by population. To date, there are no metric cranial criteria for South African whites. Therefore, the purpose of this study is to establish population specific standards for sex determination from the skull. A total of 12 standard cranial and five mandibular measurements were taken from 44 male and 47 female skeletons of known sex and race from the Pretoria and Dart collections. These were subjected to SPSS discriminant function analysis. Bizygomatic breadth was the most dimorphic dimension. Five functions were developed from the complete cranium, vault, face, mandible and bizygomatic breadth. Dimensions from the complete cranium provided the best accuracy. In the mandible, bigonial breadth was the most dimorphic of the measurements taken. Average accuracies ranged from 80% (bizygomatic breadth alone) to 86% (cranium). These accuracies are similar to those obtained by researchers on other groups (e.g., 84% in Japanese crania and about 86% in American whites and blacks). Diagnostic accuracy, however, is lower than that obtained from the South African femur and tibia.     

The Adolescent Society Revisited: Cultures, Crowds, Climates, and Status Structures in Seven Secondary Schools

The authors used data from seven schools in a metropolitan region to explore continuity and change in adolescent cultures and status structures; they identified six major types of status structures and explained variation among them in terms of characteristics of communities and schools. A key feature of the study is comparison of school climates, using both survey data and qualitative case studies that provide an interpretive context for the survey responses; this methodology allows a contextual level of analysis that is unavailable in either single-school ethnographies or large data sets that aggregate responses from individuals situated in many schools.Roberta Garner is Professor of Sociology at DePaul University. She received a Ph.D. in sociology from the University of Chicago (1966). Her interests are in sociological theory, political sociology, and the sociology of culture.Judith Bootcheck is Associate Professor of Sociology at DePaul University and received the Ph.D. from Purdue University (1969). Her interests are in youth and the aging, families, and social problemsMichael Lorr is a Ph.D. student in Urban Studies at University of Wisconsin-Milwaukee. He received an MA in sociology from DePaul (2002) and his interests are in sociology of culture, political sociology, and sociology of educationKathryn Rauch received an MA from DePaul University with a focus on sociology of education and youth     

Gunshot wounds: visual and analytical procedures.

Visual examination of clothing and tissue from gunshot wounds provides information pertaining to the range of discharge of a firearm. Identification of powder grains or soot is evidence of close range discharge by a handgun. Analyses of tissue by EDX and FAAS technics are shown to supply corroborating data to visual examination in estimation of range. These methods are of particular value in differentiating contact and distant wounds when decomposed bodies are examined and when multiple layers of clothing are present.     

Correlation of antemortem and postmortem digoxin levels.

Postmortem serum digoxin levels from any source routinely exceed antemortem values. Variation resulting from site of sampling gave a mean postmortem to antemortem ratio of 1.96 for heart, 1.63 for subclavian vein, and 1.42 for femoral vein samples. No correlation could be made between the postmortem interval and the increase in post-mortem serum values, irrespective of the site of sampling. A combination of femoral venous serum and vitreous humor values gave the best information for determining possible antemortem digoxin toxicity.