A validation study for vinyl electrical tape end matches

Fracture matches are considered the strongest conclusion in the forensic examination of rigid materials, such as glass, metal, and paint. However, publications that support the fracture matching of polymeric films, such as tape backings, are limited. This study was designed to determine the validity and error rate associated with conducting end-match (fracture match) examinations on vinyl electrical tape. Test designs varied the source roll of tape, test preparer, or mode of separation from the roll. Results indicated that each affected the resulting severed tape ends. The analysts examining the end matches also had an effect on the results. Eight end matches in the study were not identified by the initial analysts and were considered inconclusive. One end match was misidentified, resulting in one false positive and an error rate of 0.049%. These results support a comprehensive physical and chemical tape comparison regardless of indications of an end match.     

Predictors of Positive Development in Emerging Adulthood

This article responds to recent calls for a focus on successful development in young people and examination of its developmental precursors, in order to identify potentially modifiable targets for interventions. The current study examined child and adolescent precursors of positive functioning in emerging adulthood, including individual characteristics, relationship factors, and connections to the community, using a multidimensional positive development measure at 19–20 years. The sample consisted of 511 males and 647 females who were participants in the Australian Temperament Project, a population based longitudinal study that has followed young people’s psychosocial adjustment from infancy to early adulthood. Higher levels of positive development in emerging adulthood were associated with stronger family and peer relationships, better adjustment to the school setting, higher family socioeconomic status, and better emotional control. Some significant gender differences were observed, with emotional control, family relationships, and community orientation all being stronger predictors of males’ than of females’ positive development. The findings provide possible targets for child and adolescent interventions to promote positive development in early adulthood.     

Palatal rugae as an individualising marker: reliability for forensic odontology and personal identification

Personal identification is based on the comparison between ante mortem and post mortem data which can be considered unique for each individual: palatal rugae represent a useful element for such a comparison, thanks to their apparent low variability with time and unique patterns. Literature however is scarce.This pilot study aims at assessing the reliability of palatal rugae in time and at developing an identification method based on their comparison. Two casts from the upper dental arch of 39 subjects were obtained in different periods of time; at their first cast, 85.2% of patients were less than 16 years old. The second cast was performed after a period of time which varied between 4 and 65 months later than the first cast. The first cast can be taken to simulate ante mortem information, the second post mortem information. Every cast was then digitised with a scanner. In the digital images the palatal rugae were highlighted by using Adobe® Photoshop® 7.0 software; each image was coded and a comparison between “simulated” ante mortem and post mortem data was performed. In all cases ante mortem and post mortem data from the same individual were correctly matched.The study seems to indicate that this technique is highly reliable and user friendly, even on subadults, where growth processes seem not to affect the specific morphology of palatal rugae.     

Can spirits play a role in peace and reconciliation projects? Perspectives on traditional reconciliation in Zimbabwe

ABSTRACT

There is a long history of spirit-oriented systems of reconciliation and healing in Zimbabwe. However, under white rule, this work was marginalised and driven underground. In Zimbabwe today, diverse views on reconciliation, reparation, justice and national healing are producing rich but frequently conflicted initiatives around ‘traditional’ and ‘community’ reconciliation. The article considers contradictions and pressures facing the National Peace and Reconciliation Commission and different approaches to ‘spirit-led’ trauma healing work from three grassroots organisations: Heal Zimbabwe; Tree of Life; and the Centre for Conflict Management and Transformation. It indicates how religious, cultural and political affiliations influence participants’ openness to traditional and spirit-led forms of reconciliation; and how this, in turn, constrains how perpetrators, victims and reparation are defined by those working in this field. Rather than identifying specific practices as ‘authentic’ traditions, the article suggests that a continuity of community/cultural approaches can inform contemporary national healing initiatives in Zimbabwe.     

African states in international organisations: A comparative analysis

The active participation in international organisations (IOs) is an important condition for the ability of states to exert influence over the content of international norms and rules. Thus, this paper adopts a comparative perspective and examines how active African states are in more than 500 international negotiations and under what conditions they are likely to remain silent. This reveals that diplomatic staff capacities are an essential precondition for active participation, while incentive structures, such as the scope of interests, impact how often states take the floor. An alternative to voicing national interest is to negotiate on behalf of regional organisations or regional groups. This paper shows that especially weaker and smaller African states benefit from regional group membership and use references to them in order to increase their leverage in international negotiations and improve, thereby, their chances to exert influence over the international architecture of rules and norms.