La gravité du phénomène terroriste et la menace qu'il fait peser sur la paix et la sécurité internationales, de par son caractère transnational, obligent la communauté internationale à adopter un « code de bonnes pratiques » en matière de lutte anti-terroriste. Cette préoccupation est au cœur des réflexions menées dans cette thèse, qui met au premier plan le respect des normes de l'État de droit, en consacrant la suprématie de la loi dans la lutte internationale contre le terrorisme, et en essayant de comprendre les raisons qui incitent les terroristes à opter pour la voix de la radicalisation violente. Les instruments de droit pénal international et européen permettent ainsi de mettre en évidence la spécificité de la lutte internationale contre le terrorisme. Celle-ci, tout en s'effectuant de manière globale et intégrée, permet sur le plan pénal aux autorités de définir de manière très large les incriminations, afin de permettre une action anticipée et rapide contre les actes terroristes. Progressivement, à la faveur d'une montée des attentats dans le monde et surtout depuis le 11 septembre 2001, cette action dite proactive va s'ajouter à la tendance répressive qui prévalait jusqu'à lors : celle de la réaction, symbolisée par les conventions et protocoles dits sectoriels. Le caractère transnational de l'infraction terroriste oblige les services nationaux et internationaux à coopérer entre eux. Cette coopération se veut multiforme et multidimensionnelle. / The gravity of terrorism and the threat it poses to international peace and security, owing to its cross-border nature, have compelled the international community to adopt guidelines on "best practices" to combat terrorism. This issue is the focus of this thesis, as it highlights respect for the rule of law, enshrines the supremacy of the law in international counter-terrorism efforts, and seeks to grasp the motives of terrorists for embracing violent radicalisation. In this regard, international and European criminal law instruments bring the specificity of international counter-terrorism to the fore. The global and integrated nature of international counter-terrorism has led prosecution authorities to broadly define the scope of offences with a view to pre-empting and responding swiftly to acts of terrorism. Gradually, as a result of the upsurge of attacks worldwide and especially, since 11 September 2001, this proactive tendency has bolstered the criminal justice system that was in place. It is a responsive system characterized by sector-specific conventions and protocols. The transnational scope of acts of terrorism commands multiform and multifaceted cooperation between national and international agencies.

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Despite considerable advances in the development and implementation of school-based interventions, aggressive behavior in schools remains a significant problem for both educators and the community as a whole. The present study was designed to examine possible contextual influences on the course and treatment of aggression in schools, in an effort to inform future intervention development. The aim of the present study was to examine possible influences on teachers' response to reactive and proactive aggression in the classroom, and test the applicability of Weiner's attributional model of motivation and emotion. A sample of 121 middle school teachers completed self-report measures of teaching characteristics, efficacy, stress, and burnout. They also responded to four vignettes of student aggression with measurements of proposed attributions, affective reactions, and interventions. A series of ANOVAs showed that teacher's proposed responses differed as a function of child aggression subtype, teacher stress, burnout, efficacy, and training. Multiple regression analyses were used to test Weiner's theoretical model, as well as consider the moderating influence of teacher characteristics. Findings failed to support the application of Weiner's model to the current sample. Alternative patterns of moderation and mediation were significant, however. Implications of study findings were discussed as they relate to relevant theoretical models and recent advances in clinical and educational research. / Ph. D.

Recent efforts to understand and predict the onset and maintenance of aggression have considered the heterogeneity of this behavior. Dodge (1980) and others, have suggested a distinction in aggression based on two primary subtypes: reactive and proactive aggression. The form, severity and persistence of these aggressive subtypes may depend on an on-going interaction between individual characteristics and environmental characteristics that elicit varying antecedents and consequences (Frick, 1998; Lahey et al., 1999). In particular, there exists some empirical support for the existence of relations among social likeability, attributional style, and particular subtypes of aggression symptomology. However, the exact nature of this relation is unclear. The current study examined two competing models, the mediator and moderator models, to assess the nature of the relations among social likeability, attributional style, and aggression subtypes in a sample of 419 youth in a non-clinical community setting. Results suggest that the external, stable, global attributional style serves to mediate the relation between social likeability and reactive, but not proactive aggression. Implications for assessment and treatment of aggression in adolescents are discussed. / Master of Science

Aggression is a heterogeneous behavior that has been conceptualized by two distinct but inter-related functions: proactive and reactive aggression (Dodge, 1991). Proactive aggression has been linked to externalizing behaviors and reactive aggression to internalizing behaviors (Vitaro, Gendreau, Tremblay, & Oligny, 1998). There has been some evidence to suggest that family environment may influence the relationship between the aggressive functions and the related forms of psychopathology (Dodge, 1991). However, given the limited research pertaining to the relationships among aggression, family environment, and subsequent psychopathology, the current study explored the nature of the relationships among these variables in more detail. The present study hypothesized that proactive aggression would be related to externalizing symptoms (delinquency, hyperactivity), and these relationships would be moderated by family conflict. In addition, it was predicted that reactive aggression would be related to internalizing symptoms and inattention, and these relationships would be moderated by family conflict, cohesion, and control. The study included a sample of 135 children and their parents who completed several self-report measures. Overall, the findings did not support the hypotheses, though there was mixed support for the relationship between the aggressive functions and internalizing and externalizing symptoms. / Master of Science

In the current study, we investigated the association between relational aggression and measures of delinquency and overt aggression in a sample of detained adolescent girls. We also tested the validity of the distinction between reactive and proactive subtypes of relational aggression by testing their independent associations with important emotional, behavioral, personality, social, and cognitive variables that have been studied in past research and found to be important for distinguishing between reactive and proactive overt aggression. Our sample consisted of 58 predominantly African-American (78%) adolescent girls recruited from three juvenile detention centers in the southeastern United States. Participants ranged in age from 12 to 18 (Mn = 14.98; SD = 1.30). Relational aggression was measured using both self-report and observation, while overt aggression, delinquency, and social-psychological variables were measured using self-report only. As predicted, both self-reported and observed relational aggression were associated with higher rates of self-reported delinquency. Self-reported relational aggression was also associated with self-reported overt aggression, while observed relational aggression was not. On a self-report rating scale, we found evidence for four subscales that were moderately correlated and had good internal consistency. These subscales corresponded to the four aggressive subtypes (i.e., reactive overt, reactive relational, proactive overt, proactive relational). Further, we found evidence for divergence between reactive and proactive relational aggression on emotional dysregulation, CU traits, and positive outcome expectations for aggression, supporting the hypothesis that these are important subtypes that could involve distinct developmental processes, similar to reactive and proactive subtypes of overt aggression. Finally, this study found that relational aggression accounted for unique variance in callous and unemotional (CU) traits among detained girls, even after controlling for levels of overt aggression. The current findings highlight the importance of assessing relational aggression in detained girls and could have implications for designing more successful interventions for girls in the juvenile justice system.

Previous research has demonstrated an association between violence exposure and aggression; however, research exploring the association between violence exposure and the forms and functions of aggression is scarce. The aim of this study was to explore the associations between trauma exposure with both reactive and proactive functions of aggression by examining two potential mediators (e.g., psychopathic traits and emotional dysregulation). Participants included 132 male juvenile offenders mandated to treatment in a residential facility (M = 16.78 years old; SD = 1.25). Results indicate emotional dysregulation partially mediated the association between trauma exposure and reactive aggression while controlling for proactive aggression. However, no evidence was found to support the hypothesis that psychopathic traits mediated the association between trauma exposure and proactive aggression. Results suggest trauma exposure is important in the development of reactive aggression. Thus, treatment approaches for aggressive youth should address issues of trauma exposure.

Magister Scientiae (Physiotherapy) - MSc(Physio) / Introduction: The majority of University of the Western Cape coaches believe that in most sport codes, many female and male athletes get injured at least once a season. Consequently, occurrence of injuries signifies many set-backs in any team sports. University of the Western Cape sports injury intervention and rehabilitation strategies are relatively under-developed, and have not been systematically implemented, despite their proven effectiveness. However, due to intensive training, local and national league competitions, the number of injured athletes at University of the Western Cape has increased, and so delays of athletes’ recovery are caused. Thus, it is assumed that University of the Western Cape efforts may have lack of the necessary injury precautions on prevention and rehabilitation such as proactive injury treatment, paying special attention to the therapeutic process, including other necessary mechanisms. The current study has explored facilitating factors and some of the barriers on the implementation of injury prevention strategies, and determined the effectiveness of rehabilitation within University of the Western Cape sport teams in views of athletes, coaches, and medical staff. Methods: This study used a sequential exploratory design which entailed an initial phase of quantitative data collection and analysis, followed by a phase of qualitative data collection and analysis. This study used a close-ended survey and semi-structured interviews to identify the barriers and facilitators associated with the implementation of injury prevention strategies among sports clubs at the University of the Western Cape. Results: Data were collected on the general knowledge of players and team coaches about injury prevention as well as their sources of information regarding injury prevention. Football players were 49.5% while 15.8% were basketball players in this study. Cricket players were 10.9% while rugby players were 9.9%. Sources of players’ knowledge of injury prevention included doctor/physiotherapist, coaches and the media. Sources of coaches’ knowledge of injury prevention included doctor/physiotherapist, media and seminars. Most players and coaches agreed that there is a greater chance of sustaining an injury during a competitive match than during training. Players and coaches also agree that the risk of injury is reduced by wearing preferred protective clothing and thoroughly warming up and stretching prior to training or competition. Barriers to the implementation of an injury prevention strategy include not having enough time, being too tired after training, no advice given on such techniques, the notion that nobody else does it and lack of proper equipment. Facilitators of an injury prevention strategy include availability of medical staff (doctors and physiotherapists), players’ understanding of the coach’s instructions, and injury prevention facilities at University of the Western Cape, services accessibility and quality, injury discovery and follow-up, and injury prevention policy at University of the Western Cape. Conclusion: Based on the findings of this study, the following recommendations were made: (i) Intervention directed at players and coaches in the form of health promotion programmes through education to increase their knowledge and support in implementation of all prevention strategies either in training or in competition; (ii) Governing bodies at University of the Western Cape should develop and disseminate written sports safety policies and guidelines and supervise clubs in their development programmes.