Use of drugs among Senegalese school going adolescents

Though it may appear more severe and dramatic in most industrialized nations, drug addiction has also become a matter for concern in some developing nations. The problem is even more complex when, prior to the advent of colonialism and the adoption of Western values by those countries, there already existed traditional forms of drug addiction. This paper examines the attitudes of Senegalese school-going adolescents to the problem of drug addiction. It describes the nature, development, and perception of drug addiction in the country from an historical and sociological point of view. It shows the tolerance of Senegalese society toward drugs — some were used in traditional medicine — and its rejection of hard and intermediate drugs, as they are viewed negatively by the society. The authors finally analyze the motivations of the drug addicts which also indicate, in Africa as in the West, a crisis of identity reflecting a global crisis of civilization.We are profoundly grateful to the Belgian Cooperation Service for the material assistance they kindly provided us.Master's degree in Psychopedagogy and a postgraduate in Psychosociology. Research interest is cross-cultural adolescent psychology.Doctor of mathematics and post-graduate in psychopedagogical science. Research interest is cross-cultural adolescent psychology.     

Determination of sex by discriminant function analysis of postcranial skeletal measurements

Thieme and Schull [16] took measurements of seven postcranial traits from black skeletons of known sex to devise a method for accurately sexing human remains. With a linear discriminant function analysis of the data they obtained a 98.5% accuracy. The research reported here was designed to assess the accuracy of their method in the hands of other investigators using a sample of the same black population and its applicability to other populations of the same and different races. None of the samples used in this study were sexed with the same rate of accuracy either achieved or predicted by Thieme and Schull. However, two samples did reach 91% or better. Such results suggest that the methods employed have considerable value if used with appropriate precautions. Our multiple discriminant function analysis strongly indicates that neither side nor observer techniques affected the results. Sex accounts for a predominant fraction of the total variation among samples and race accounts for most of that remaining.     

The Role of Language, Parents, and Peers in Ethnic Identity Among Adolescents in Immigrant Families

To construct a model of the influences on ethnic identity among adolescents in immigrant families, we surveyed adolescents and their parents from 81 Armenian families, 47 Vietnamese families, and 88 Mexican families. Adolescents completed measures of ethnic language proficiency, in-group peer social interaction, and ethnic identity. Parents completed a measure of support for cultural maintenance. Across all groups, ethnic language proficiency and in-group peer interaction predicted ethnic identity, and parental cultural maintenance predicted adolescent ethnic language proficiency. However, because of differences among the groups, a separate model was required for each ethnic group. The results suggest both common processes and group differences in the factors that influence ethnic identity.     

Age-at-death estimation based on the study of frontosphenoidal sutures

Determination of age at the time of death based on the observation of cranial sutures has led to numerous studies with sometimes contradictory results. The initial hypothesis being that suture closure is part of an age-related physiological process, the conflicting results have been interpreted by various authors as secondary to the choice of sutures, under the co-existing influence of pathological factors or genetic factors, or even independent of age. Despite these differences, macroscopic methods remain much used in anthropology and in forensic medicine. In our work, we evaluated the value of the degree of closure of the frontosphenoidal suture in estimating age at death of mature subjects, with the secondary objective of establishing a linear regression which could be used in routine practice. The study concerned bone specimens from individuals whose age, sex and medical history were known. Macroscopic observation was carried out on the ectocranial and endocranial sides according to four stages of closure previously defined. 290 sutures were taken from a population of whom two-thirds were men. The method can be repeated and reproduced and the regression established shows the confidence range for average error to be +/-1.5 years. While this result is of interest in terms of precision in prediction for a group of people, the prediction range is too great (+/-23 years) to be applicable to a single individual as part of a forensic procedure.