abstract: Aggression is inherently social. Evolutionary theories, for instance, suggest that the peer group within which an aggressor is embedded is of central importance to the use of aggression. However, there is disagreement in the field with regard to understanding precisely how aggression and peer relationships should relate. As such, in a series of three empirical studies, my dissertation takes a relational approach and addresses some of the inconsistencies present in the extant literature. In Study 1, I examined how qualities of youth's close friendships contributed to the use of aggression, both concurrently and over time. I found that youth with large friendship networks were more aggressive, whereas those with highly interconnected friendship network decreased in aggression over time. Using a dyadic mediation model, the second study considered the precursors to aggressors' friendships with peers. Specifically, I explored aggressive youth's interactions with unfamiliar peers and assessed how the interactions that unfold affected the quality of the relationship. I found that dyads who were highly discrepant in their tendencies toward aggression failed to collaborate well with one another, and this led to less positive perceptions of one another. Whereas the first two studies concerned aggressors' relationships with their friends (Study 1) and acquaintances (Study 2), Study 3 focused on a different type of relationship – the relationship between an aggressor and his or her victim(s). In the third study, I explored how power dynamics operate within an aggressor-victim dyad and assessed whether differences in the balance of power between the aggressor and victim affected the strength of their relationship. I found that more aggressor-victim dyads were characterized by a relative balance than imbalance in power, and that power balanced dyads had stronger and more sustained aggressor-victim relationships. By taking a relational approach to the study of aggression, this dissertation has advanced extant work in the field. That is, these findings move away from the simplification and aggregation of relational constructs (e.g., relationships, friendships), and instead consider the nuances of specific types of relationships or interactions with specific peers, allowing for a better understanding of the relational nature of aggression. / Dissertation/Thesis / Doctoral Dissertation Family and Human Development 2016

Made available in DSpace on 2014-06-11T19:22:23Z (GMT). No. of bitstreams: 0 Previous issue date: 2011-02-18Bitstream added on 2014-06-13T20:48:51Z : No. of bitstreams: 1 ibrahim_anaf_me_jabo.pdf: 568149 bytes, checksum: 931077e27a5e7e33814380c2b3012de9 (MD5) / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) / Nas populações animais, são construídas hierarquias de dominância e submissão por meio da interação social. O crescimento heterogêneo pode ser um indicativo de hierarquia e aviso para os indivíduos menores evitarem lutas contra o coespecífico maior. As populações do camarão-da-amazônia são compostas por quatro morfotipos masculinos com tamanhos diferentes: „translucent claw‟ (TC), „cinnamon claw‟ (CC), „green claw‟ 1 (GC1) e o „green claw‟ 2 (GC2). Considerando a necessidade de conhecer as interações sociais do Macrobrachium amazonicum cultivado para maximizar o crescimento e sobrevivência, foram testadas duas hipóteses: macho GC2 afeta o crescimento e comportamentos do macho TC; os quelípodes do macho GC2 têm papel fundamental na interação social. O fator testado foi a condição do macho GC2, com três níveis: quelípodes intactos, dáctilos imobilizados ou ausência dos quelípodes. A ausência de macho GC2 foi o tratamento controle. A agressividade do camarão GC2 foi maior quando esse estava com seus quelípodes. Em todos os tratamentos, o índice de dominância do GC2 foi maior. Nos comportamentos analisados, o camarão TC isolado permaneceu mais tempo fora do abrigo, menos tempo se limpando, apresentou menor latência e maior duração da alimentação. A sobrevivência nos tratamentos em que o camarão GC2 estava sem quelípodes e o TC estava isolado foi 100%. Camarões TC criados aos pares com GC2 apresentaram crescimento menor quando comparado com camarões TC isolados. O número de ecdises e alteração de morfotipo foi maior nesse último tratamento. Portanto, o crescimento do macho TC é controlado socialmente por meio de dois mecanismos: redução do acesso do TC ao alimento e aumento do intervalo entre as ecdises. A presença do GC2 com os quelípodes intactos diminui a sobrevivência dos camarões subordinados / In animal populations, are constructed hierarchies of dominance and submission through social interaction. The heterogeneous growth may be indicative of hierarchy and notice the smaller individuals to avoid fights against larger conspecific. The populations of amazon river prawn are composed of four male morphotypes with different sizes, 'translucent claw' (TC), 'cinnamon claw' (CC), 'green claw' 1 (GC1) and 'green claw' 2 (GC2). Considering the need to understand the social interactions of cultivated Macrobrachium amazonicum to maximize growth and survival, we tested two hypotheses: GC2 male affects growth and behavior of TC male; the chelipeds GC2 male has a fundamental role in social interaction. The factor tested was the condition of the GC2 male, with three levels: chelipeds intact, dactyls immobilized or absence of the chelipeds. The absence of GC2 male was the control treatment. The aggressiveness of GC2 prawn was higher when this was with their chelipeds. In all treatments, the dominance index of GC2 was higher. Behaviors analyzed, prawn treatment alone remained more time outside the shelter, smaller time grooming and showed smaller latency and higher duration of feeding. Survival in treatments where GC2 prawns were without chelipeds and where TC was isolated was 100%. Prawns TC created in pairs with GC2 showed slower growth compared with TC prawn isolates. The number of ecdysis and changes in morphotype was greater in the last treatment. Therefore, growth of TC male is socially controlled through two mechanisms: reduced access of TC to food and increase the interval between ecdysis. The presence of GC2 with chelipeds intact reduces the survival of subordinate prawns

The purpose of this study was to evaluate incidence of behavioral disorders in dogs, based on an owner's survey (behavioral questionnaires) and description of seven representative cases. A total 96 of 160 dogs had behavior problems (60.0 %) and 64 dogs did not (40.0 %). Disorders connected with fear showed 51 (31.9 %) dogs and fear was most frequently disorder of behaviour. Aggressive behavior without dominance aggression showed 19 (11.9 %) dogs, separation anxiety 14 (8.8 %) dogs and seven (4.4 %) dogs demonstrated dominance aggression. Five dogs (3.1 %) had other problems connected with lack of training. At second parts of this study seven behavioural disorders cases was described. There were identified two cases of aggression towards the owners, two cases of separation anxiety, three cases of fear behaviour.

abstract: Although aggression is sometimes thought to be maladaptive, evolutionary theories of resource control and dominance posit that aggression may be used to gain and maintain high social prominence within the peer group. The success of using aggression to increase social prominence may depend on the form of aggression used (relational versus physical), the gender of the aggressor, and the prominence of the victim. Thus, the current study examined the associations between aggression and victimization and social prominence. In addition, the current study extended previous research by examining multiple forms of aggression and victimization and conceptualizing and measuring social prominence using social network analysis. Participants were 339 6th grade students from ethnically diverse backgrounds (50.4% girls). Participants completed a peer nomination measure assessing relational and physical aggression and victimization. They also nominated friends within their grade, which were used to calculate three indices of social prominence, using social network analysis. As expected, results indicated that relational aggression was associated with higher social prominence, particularly for girls, whereas physical aggression was less robustly associated with social prominence. Results for victimization were less clear, but suggested that, for girls, those at mid-levels of social prominence were most highly victimized. For boys, results indicated that those both high and low in prominence were most highly relationally victimized, and those at mid-levels of prominence were most highly physically victimized. These findings help inform intervention work focused on decreasing overall levels of aggressive behavior. / Dissertation/Thesis / M.S. Family and Human Development 2013

The problem with which this investigation is concerned is that of determining the effects significant symbolic interactions such as victimization, have on the acceptance of aggression and the expectation of assertive traits in children. Information from the General Social Survey (years 1973, 1975, 1976, and 1978) is used to establish measures of victimization, acceptance of aggression, and expectations of assertive traits in children. The findings provide only slight support for a model which places emphasis on the importance of traumatic events in bringing about changes in attitudes. Factors such as age, occupational prestige, education, and military experience appear to be helpful in explaining the conditions under which attitude changes are most likely to occur as a function of victimization.

Background: The long-term detrimental impact of childhood emotional maltreatment is being increasingly recognised in the empirical literature. Adulthood trait-aggression is one proposed outcome of childhood emotional maltreatment. However, the pathways by which emotional maltreatment leads to trait-aggression are not well understood. Method: A systematic review was conducted to appraise the current empirical evidence base regarding the relationship between childhood emotional maltreatment and adulthood trait-aggression. Eighteen studies were reviewed and their quality analysed based on a number of pre-defined criteria. An empirical study was conducted using a cross-sectional, survey based design to evaluate hostile attribution bias and emotion regulation difficulties as mediators between childhood emotional maltreatment and adulthood trait-aggression. Participants were men (N = 42) recruited from NHS Forensic Mental Health Services. Results: Results from the systematic review provided support for a positive and significant association between childhood emotional abuse and adulthood traitaggression. There was evidence to indicate that childhood emotional neglect was also positively associated with adulthood trait-aggression, however, only a small number of studies have examined this relationship. The empirical study found significant indirect effects of childhood emotional abuse on self-reported aggression through emotion regulation difficulties. Emotion regulation difficulties did not have a significant effect on the relationship between childhood emotional neglect and aggression. Hostile attribution bias was not found to significantly mediate the relationship between either emotional abuse and aggression or emotional neglect and aggression. Conclusion: Those who experience emotional maltreatment during childhood may be at increased likelihood of engaging in aggressive behaviour in adulthood. Emotion regulation difficulties may play a key role in the relationship between childhood emotional abuse and aggression and this should be taken into consideration when assessing and treating adults who have difficulties with aggression. The routes by which emotional neglect and emotional abuse lead to aggression may differ. Further research is required to better understand the processes which lead from emotional maltreatment to aggression, particularly with regards to emotional neglect.

Background: Bullying is a form of violence and is described as unwelcome aggressive behavior(s) by unrelated individuals. The prevalence of bullying in the nursing profession has been reported to be as high as 31% in the United States, and has been studied extensively in undergraduate nursing, midwifery, medical school residencies, and Certified Registered Nurse Anesthesia (CRNA) professional roles. There is a significant gap in the literature and paucity of evidence about the extent of Student Registered Nurse Anesthesia (SRNA) bullying underscored that this topic required further investigation. Purpose: To investigate whether bullying behaviors occur among anesthesia preceptors, and if so, how SRNAs perceive bullying has affected their educational experience. Methods: The American Association of Nurse Anesthetists (AANA) disseminated an online survey based on an existing tool to SRNAs for this study. The study used a quantitative descriptive methodology consisting of a survey of nine demographic questions, eight 5-point Likert scale questions, and two multiple-choice questions. Setting and sample: A nationwide online survey sent to 1500 SRNAs yielded (N=133) participants, who were predominantly female (67.67%), in front-loaded programs (52.63%) with an average age of 24-29 years old. Results: Results revealed SRNAs entering clinical rotations in 2015 and 2016 were bullied more than those entering in 2017. The majority of the respondents (89.26%) reported that they couldn't think clearly when they were bullied. More than half of SRNAs agreed (74.62%) that bullying impedes learning. Overall, CRNA preceptors (85.48%) were reported as the most frequent bullies, with MD/DO anesthesiologists reported as the second most frequent (68.55%) followed by non-CRNA nursing staff (41.94%).

Antisocial behaviors (AB), which place an enormous burden on society, are committed by a heterogeneous population, including psychopaths (Poythress et al., 2010). Psychopathy denotes a more serious and entrenched pattern of AB (Hare, 1996) and appears to be a heterogeneous construct as well. In fact, Primary and Secondary psychopathic variants are consistently identified in a variety of samples using person-centered analysis (Drislane et al., 2014; Gill & Stickle, 2016). Both Reinforcement Sensitivity Theory (Gray & McNaughton, 2000) and the Triarchic Model of Psychopathy (Patrick, Fowles, & Krueger, 2009) provide useful frameworks to understand the etiology of the psychopathic variants. The current study identified Primary and Secondary Trait groups in a sample of criminally justice involved adults (N = 377), which differed on measures of negative emotionality. However, the Psychopathic trait groups did not differ on the boldness or meanness domains of the Triarchic Model (Patrick, Fowles & Kreuger). The disinhibition domain of the Triarchic model was significantly associated with aggression, and this association was partially mediated by levels of anxiety. Anxiety is an important dimension to assess in research, evaluation, and treatment of individuals with high levels of antisocial behavior. Keywords: Psychopathy, variants, Triarchic, measurement, antisocial behavior

Although much attention has been paid to the consequences of objectification, relatively little research has focused on the question of why women are objectified. From a terror management theory perspective, the association of women with (literal) objects strips them of the qualities that are threatening (on account of mortality concerns). Sexualization, however, underscores women’s animal nature, and this association is problematic in the management of existential anxiety. The current research builds on a distinction between sexual and appearance-focused objectification to identify the existential mechanisms in the motivation to dehumanize, and subsequently harm, women. Consistent with the hypothesis, participants primed with mortality salience (MS) reported increased mechanistic dehumanization of a female target conforming to the operationalization of appearance-focused objectification, compared to those not primed with MS. Contrary to the hypothesis, MS did not increase animalistic dehumanization of a sexually objectified female target (Study 1). In Study 2, participants believed they were interacting with another person online; MS was expected to increase aggression when the partner was sexualized, and decrease aggression when she was depicted with a focus on appearance. The results did not support this hypothesis; none of the manipulations impacted aggression towards the partner. Ancillary analyses revealed that participants primed with MS attributed fewer human nature traits to the partner in the appearance-focused objectification condition (i.e., they mechanistically dehumanized her), compared to those not primed with MS, thus mirroring the effect found in Study 1. This research provides further insight into the division between sexual and appearance-focused objectification, and is suggestive of a possible existential mechanism in these processes.

Magister Legum - LLM / Objective of the study – The primary goal of this research study was to investigate and document the evolution and historical development of the crime of aggression. Design / methodology / approach – The research study was primarily a desk-top based research by design and methodology. It reviews a range of published books, expert commentaries, and journal articles that provide theoretical and practical research on the evolution and development of crime of aggression through the past centuries to the present day. The discussion is majorly premised around key historical debates and events that shaped, and defined the rubric of the crime of aggression. These include: the philosophers' conceptualisation of the doctrine of "just war" or "unjust war", states' practice before and after the First World War and Second World War, the International Military Tribunals, the birth and role of the United Nations, the 1998 Rome Conference and the 2010 Kampala ICC Review Conference. Findings – This study provides information on each author's perspective on the status of the crime of aggression before and after the First ICC Review Conference. The study generally concedes that although today the crime of aggression is defined under the Rome Statute, and the jurisdiction of the ICC over it spelt out; its status under the treaty regime remains distinctly different from that under international customary law. Significance of the study – The significance of this research study lies in the fact that it is useful with regard to documenting the historical development of the crime of aggression. It also fulfils an identified need to clarify the position of the crime of aggression after the landmark First ICC Review Conference that took place in Kampala during May / June 2010. Study type – Postgraduate university Master of Laws research paper.