Cross-gender Violence Perpetration and Victimization Among Early Adolescents and Associations with Attitudes Toward Dating Conflict

This study examined gender differences in cross-gender violence perpetration and victimization (ranging from mild, e.g., push, to severe, e.g., assault with a knife or gun) and attitudes toward dating conflict, among an urban sample of 601 early adolescents (78% African-American). Comparisons across gender groups for cross-gender (e.g., female-to-male) violence perpetration and victimization indicated higher levels of perpetration for girls and higher levels of victimization for boys. Girls also reported higher levels of verbal and physical violence toward partners with regard to attitudes toward dating conflict. A path model was specified and indicated that cross-gender violence perpetration, harsh parenting, peer deviance, low family income, and neighborhood hazards accounted for significant variation in attitudes toward dating conflict. Findings were discussed regarding the need to identify developmental precursors of dating violence in early adolescence and to focus prevention efforts on components (e.g., social skills, coping strategies) necessary to prevent the onset and escalation of adolescent dating violence.

Peer Selection and Socialization in Adolescent Depression: The Role of School Transitions

Previous studies have indicated homophily in depressive symptoms among adolescent friends, resulting from both peer selection and socialization processes. However, developmental differences and the role of school transitions in these processes have not been elucidated. A sample of 367 (51% female) adolescents was followed from 6th to 11th grade to investigate prospective relationships between adolescents’ and their friends’ depressive symptoms in middle school and in high school. Results revealed that students selected friends with similar levels of depressive symptoms after each school transition. Additionally, friends appeared to socialize adolescents to become more similar in depressive affect in late middle school years. These findings suggest normative selection effects after school transitions, followed by socialization effects in middle school, but not high school.     

The Distinct Roles of Biological and Perceived Pubertal Timing in Delinquency and Depressive Symptoms from Adolescence to Adulthood

Journal of Youth and Adolescence - Pubertal timing is a robust predictor of externalizing and internalizing problems in adolescence, but controversies remain whether only early or off-time (both...     

Scottish legal education after Brexit

ABSTRACT

This paper offers some reflections on the possible consequences of Brexit for legal education in Scotland. Scotland’s small and distinctive legal system is bolstered by devolved legislative powers and characterised by a tradition of openness to external influences. Scotland’s legal system and relatedly, its legal education system, will be poorer for Brexit. That said, this paper argues that the features and traditions of the legal system and legal higher education system in Scotland make them well placed (and perhaps better placed than those in the other domestic jurisdictions) to resist such dampening pressures and indeed to embrace EU legacies and other European and international influences.     

Automated detection of regions of interest in cartridge case images using deep learning

This paper explores a deep-learning approach to evaluate the position of circular delimiters in cartridge case images. These delimiters define two regions of interest (ROI), corresponding to the breech face and the firing pin impressions, and are placed manually or by an image-processing algorithm. This positioning bears a significant impact on the performance of the image-matching algorithms for firearm identification, and an automated evaluation method would be beneficial to any computerized system. Our contribution consists in optimizing and training U-Net segmentation models from digital images of cartridge cases, intending to locate ROIs automatically. For the experiments, we used high-resolution 2D images from 1195 samples of cartridge cases fired by different 9MM firearms. Our results show that the segmentation models, trained on augmented data sets, exhibit a performance of 95.6% IoU (Intersection over Union) and 99.3% DC (Dice Coefficient) with a loss of 0.014 for the breech face images; and a performance of 95.9% IoU and 99.5% DC with a loss of 0.011 for the firing pin images. We observed that the natural shapes of predicted circles reduce the performance of segmentation models compared with perfect circles on ground truth masks suggesting that our method provide a more accurate segmentation of the real ROI shape. In practice, we believe that these results could be useful for firearms identification. In future work, the predictions may be used to evaluate the quality of delimiters on specimens in a database, or they could determine the region of interest on a cartridge case image.