VictorJuiz/thesis huggingface dataset:
Aggression in Hockey, Comparisons of Displayed Aggression, Coaches' and Teams' Perceptions of Aggressions

The purpose of this study was to examine minor hockey league coaches' and teams' perceptions of aggression and the recorded aggressive behaviour of those teams. Teams and coaches completed modified versions of the Bredemeier Athletic Aggression Inventory-Short Form (BAAGI-S). Game report sheets were used to determine recorded aggression levels. The Atom level were more approving of instrumental aggression, while the Peewee/Bantam group favoured the use of hostile aggression and received more hostile aggression penalties on the ice. Regardless of the level of play, coaches displayed similar levels of aggression for both instrumental and hostile categories. Teams' views were unrelated to coaches' attitudes on aggression. Coaches found instrumental aggression to be more acceptable than hostile aggression. Although teams also viewed instrumental aggression as more acceptable, their behaviour on the ice indicated otherwise by receiving more hostile-type penalties. Overall, the findings suggest that aggression continues to play a role in hockey.
Implementation and evaluation of QoSMIC - a new Internet multicast routing protocol

Multicasting involves the distribution of the same data to several receivers at the same time. Efficient multicast routing can reduce the communication cost of the distribution tree. Multicast service with Quality of Service (QoS) guarantees is critical to support QoS-sensitive applications, such as telemedicine, video-conferencing, and virtual reality. However, most multicast routing protocols, such as PIM and CBT do not employ QoS-sensitive routing. QoSMIC is a promising approach to QoS-sensitive multicast routing. In this document, we implement the QoSMIC routing protocol using the Network Simulator (NS) and conduct detailed simulations under realistic network environments. We investigate the end-to-end performance and the routing efficiency of QoSMIC. Our experimental results show that QoSMIC outperforms Core-based trees, such as those formed by PIM-SM, CBT, or BGMP, by a large margin, under a wide range of network topologies and conditions. We also examine the overhead complexity of QoSMIC. Our results show that we can reasonably limit the control overhead of QoSMIC without sacrificing the optimality of the multicast tree.
L'enseignante, agente de développement en Acadie du Nouveau-Brunswick

La mission de l'éducation de langue française en milieu minoritaire canadien est de maintenir et de développer l'identité francophone. L'école est gardienne de la langue et de la culture françaises. Au Canada français, ce rôle est également conféré aux mères. Cette recherche confirme la continuité du dédoublement de ce rôle en Acadie du Nouveau-Brunswick. Cela place l'enseignante à l'intersection de ces deux institutions de socialisation que sont l'école et la famille. Cette étude ethnographique démontre qu'à cette intersection émergent deux paradoxes. La gestion que font les enseignantes du début du primaire de ces paradoxes mène à la production et à la reproduction d'inégalités sociales. Le premier de ces paradoxes est celui de l'authenticité/autorité linguistique. Plusieurs variétés de la langue française sont parlées en Acadie. Ces variétés sont liées à la performance et à la négociation d'identités acadiennes régionales, de classes et/ou de générations. À l'exclusion de cette diversité linguistique et identitaire, par contre, le français standard ou "correct" est la seule langue légitime en salle de classe. Se crée ainsi le paradoxe authenticité/autorité linguistique: l'identité acadienne qui est la raison d'être de l'école acadienne est souvent liée à une langue exclue de la salle de classe. Selon le deuxième paradoxe, il est naturellement donné aux femmes de voir à l'éducation des enfants, cela relève de leur instinct maternel. Or, l'interaction adulte/enfant est une pratique qui peut varier d'un milieu socioculturel acadien à un autre. Lorsque deux cultures se rencontrent, il y a nécessité de négociation ou de domination et de soumission. Puisque les enseignantes font ce qui leur est naturellement donné de faire, elles reproduisent les pratiques culturelles de leur communauté et traitent comme déviantes les pratiques qui appartiennent à d'autres communautés. La salle de classe devient ainsi un milieu qui exige la soumission. La langue et les comportements des élèves de ces autres communautés sont soumis à la régulation de l'institution scolaire. Cette thèse postule que seul l'affrontement du double paradoxe de l'enseignement au primaire permettra à l'enseignante de remplacer une pédagogie coercitive par une pédagogie collaboratrice.
The precarious identities of dieters, does the processing of identity information play a role in distress-induced overeating?

This study is the first to test the theoretical proposition that young females use dieting and binge eating as means for avoiding dealing with the identity crisis of late adolescence. No direct support was found for the hypothesis that restrained eaters who tend to avoid processing identity information (i.e., employ a diffuse-avoidance identity style) would overeat after being asked to list important life goals as compared to after listing self-irrelevant television shows. However, detailed analysis of the types of goals listed in relation to the amount of food consumed and personality measures revealed some interesting new findings about restrained eaters and the effects of employing a diffuse-avoidance identity style. In particular, only for diffuse-avoidant restrained participants was listing fewer career goals correlated with greater food consumption. Important associations between identity style and eating restraint were also found and several ideas for future research were discussed.
Recovery in schizophrenia, hope, self-efficacy, and illness intrusiveness

'Objectives'. This study explores domains of recovery in schizophrenia (hope, self-efficacy, and illness intrusiveness) and factors which may influence those domains (illness severity, duration of illness, stigma, and social support). Multiple sclerosis is used as a comparison group to determine if the relative importance of the proposed domains of recovery are unique to schizophrenia, or are common to other chronic illnesses. Research questions include: What is the strength of the relationship among the three indicators of recovery? What factors influence the three indicators of recovery? How do the patterns of recovery of individuals with MS differ from individuals with schizophrenia? And how does the individual who has a chronic illness describe his/her recovery? 'Methods'. This study is a cross-sectional design with two comparison groups (n = 70 in each group) using standardized questionnaires for each domain. Concurrent semi-structured interviews with a subset of subjects have been conducted (n = 10 in each group). 'Results'. The domains of hope and self-efficacy are highly correlated in both the schizophrenia and MS populations. There is no correlation between self-efficacy and illness intrusiveness in either group, and the measurement of illness intrusiveness is problematic in the schizophrenia group. Depression, size of the social network, perceived stigma, and schizophrenia symptoms (notably dysphoric and positive) accounted for 41% of the variance in hope in the schizophrenia population. Perceived stigma accounted for 16% of the variance in self-efficacy in the schizophrenia group. Individuals with schizophrenia were less hopeful, had a lower sense of self-efficacy and perceived more stigma than the MS group. 'Conclusions'. This study has been a necessary first step in examining domains of recovery in schizophrenia and potential influences on those domains. It suggests areas that require intervention in order to more fully assist individuals with schizophrenia get on with their lives. Most notably, interventions that nurture hope and foster a sense of self-efficacy must be refined. Furthermore, it is imperative that stigma be addressed at individual and societal levels if recovery is to become a reality instead of a goal for greater numbers of individuals living with schizophrenia.
Serbian virtual community and ethnic identity

This research is an ethnographic study of a Serbian virtual community, observed and explored during the Kosovo crisis. The ethnic virtual space was analyzed from the perspective of a participant-observer in the research site, combining techniques of participant-observation, online surveying and online interviewing of community members. Analyzed patterns of community interactions allowed developing a typology on a basis of observed data and elaborated concepts in literature. Discussion of the research includes suggestions about ways of how an ethnic group could use computer-mediated communication technologies for its own purposes and in its own language to locally construct an environment, to participate in homeland and immigrant issues and to establish otherwise impossible contact among its dispersed members. In addition, discussion also addresses educational components of the ethnic virtual community-social organization, rules of behavior, and modes of access.
cAMP-dependent protein kinase activity in bipolar affective disorder

Increasing evidence suggests that abnormal cAMP signaling contributes to the pathophysiology of bipolar affective disorder (BD). cAMP-dependent protein kinase (PKA), the primary downstream transducing, enzyme of the cAMP system is involved in many cellular processes through the phosphorylation of substrate proteins. Reduced [3H]cAMP binding and increased PKA activity in postmortem brain from BD patients as compared with non-psychiatric controls (Rahman et al 1997; Fields et al 1999), support the notion that hyperfunctional cAMP signaling occurs in BD. The present study further examines the clinical relevance of PKA activity to BD in transformed living cells from affected individuals using a B lymphoblast cell line (BLCL) model that minimizes the influence of state-related factors. PKA activity was assayed using Kemptide as a substrate in the presence of a PKA-specific inhibitor. Concentration-response relationships for cAMP-stimulated PKA activity were determined in BLCLs from BD patients (Bipolar I Disorder (BP-I), Bipolar II Disorder (BP-II)), major depressive disorder (MDD) patients and healthy subjects. (Abstract shortened by UMI.)
Application of a two-dimensional hydrodynamic and water quality model to Lake Erie

A longitudinal/vertical hydrodynamic and water quality model, CE-QUAL-W2, is applied to Lake Erie for the summer of 1994. Observed data used for model forcing and calibration include: meteorological buoys, current meters, thermistor chains, water level gauges and numerous water quality samples. Without major adjustment, the model accurately simulates water levels. Modifications to the eddy coefficient turbulence scheme were required to model the longitudinal currents, which are reasonably simulated in the neutrally stratified western basin. In the eastern basin and central basin hypolimnion, baroclinic currents dominate over observed barotropic currents. The temperature field and distinct thermocline are simulated to within 3°C of observed. Dissolved oxygen profiles are well modelled. A higher algal settling velocity was required for calibration of algal concentrations to near-shore observations because the model does not account for filter feeding by zebra mussels. The next phase of the project will be the inclusion of a zebra mussel algorithm.
Behavior of spirally reinforced high strength concrete columns under axial loading

An experimental investigation was conducted to study the behavior of spirally reinforced high strength concrete (HSC) columns subjected to axial compression loading. The main objective of the experiment was to investigate the effects of the volumetric ratio of spiral steel, the spiral spacing, the specimen size and the concrete strength on the strength and ductility performance of confined concrete. Behavior of the cover concrete, spiral reinforcement steel, and longitudinal reinforcing bars were also investigated to gain insight into the overall behavior of HSC columns. A total of 32 spirally reinforced HSC columns were tested, including ten 254 mm diameter columns with concrete strength f'c of 69.7 Mpa, nine 203 mm diameter columns with concrete strength f'c of 69.7 MPa, and thirteen 203 mm diameter columns with concrete strength f 'c of 89.8 MPa. Overall height of each specimen was four times the diameter. All of the specimens were reinforced longitudinally with five deformed reinforcement bars and laterally by various amounts of spiral reinforcement. An increase in the volumetric ratio of spiral steel resulted in increases in the strength and ductility of confined HSC, with the improvements in ductility being more pronounced. Reductions in spiral spacing resulted in improved strength and ductility of confined HSC when the volumetric ratio of spiral steel was sufficiently large. Increases in concrete strength were found to result in decreases in the peak strength enhancement, axial strain at peak strength, spiral stress at peak strength, and deformability of the specimens. Larger diameter columns achieved better participation of the cover concrete shell and had larger strengths at low axial strains. Cover concrete began spalling at lower concrete strengths and at earlier axial strains than expected in the columns with f'c of 89.8 MPa.
The development of new oxabicycle-based strategies for the synthesis of trans-fused (4.3.0), (5.3.0) bicycles and decalin-derived tricycles with diverse functionalities

The primary objective of this study was to determine the reactivity of oxabicyclic compounds in anionic ring closing-ring opening reactions, in particular the effect of substitution on the carbanionic carbon which initiates the cyclization sequence. Trans-fused [4.3.0], [5.3.0] bicycles and decalin-derived tricycles with diverse functionalities were the desired products of this sequence. Following the successful synthesis of oxabicyclo[2.2.1] aldehyde and methyl ketone substrates, the first objective was to explore the scope of SmI2-promoted radical cyclization on the substrates. The second objective was to investigate the possibility of anionic cyclization of oxabicyclo[2.2.1] aldehyde substrate via stannylation and tin-lithium exchange to initiate the ring opening and form the trans-fused [4.3.0] bicycles with diverse functionalities. Our third objective, the synthetic methodology of oxabicyclo[6.2.1.0 2,7] stannane substrate was exploited to find a convergent and practical way to, prepare this kind of compound. The reactivity of oxabicyclo[6.2.1.0 2,7] stannane in anionic cyclization and sequential ring opening reactions was also investigated to extend the scope of the reaction. Finally, as part of our effects directed toward the total synthesis of phorbols via intended to demonstrate the synthetic strategy on the oxabicyclo[3.2.1] substrate to form trans-fused [5.3.0] bicycles with diverse functionalities. Syntheses of [3+4] cycloadduct, oxabicyclo[3.2. 1] aldehyde and stannane were investigated. (Abstract shortened by UMI.)
Computational modeling of nucleotide processing by the actin cytoskeleton regulatory network

The role of ATP hydrolysis in the regulation of the actin cytoskeleton continues to be a subject of controversy. Since actin polymerization can occur in the absence of ATP, the energy of hydrolysis is not needed for filament assembly. Recent work has instead suggested a regulatory role for ATP in cytoskeletal remodeling. Differences in the affinities and reaction dynamics between actin and several of its regulatory proteins have been reported which depend on the identity of actin's bound nucleotide. However, the ways in which these differences are integrated by the actin network to effect coordinated cytoskeletal regulation remain to be elucidated. Two computational models that simulate the reactions in this network were developed and used to study its dynamics and steady states under conditions of physiological interest. Based on these studies, three principal findings are reported. First, physiologically realistic changes in the concentration of filament ends have effects on the spatial distribution of filament-bound nucleotide that follow naturally from the kinetic data, but that are unexpected on the basis of previous work. Second, profilin and capping proteins harness actin's hydrolysis of ATP to effect a sensitive regulatory switch between states of high and low polymer mass. Third, when some fraction of barbed ends are capped, the phenomenon of treadmilling is replaced by funneled treadmilling, in which the slower depolymerization of an pointed ends feeds the more rapid growth of the remaining free barbed ends. Funneled treadmilling may help to explain the high rate of continuous barbed end growth observed in motile cells, but cannot be sustained indefinitely by itself. A novel scheme called the treadsevering model is described, which suggests how severing and capping proteins in the cell may act to sustain funneled treadmilling indefinitely given a constant supply of ATP.
The cell cycle-dependent regulation of DNA topoisomerase IIÃ expression is mediated by proteasomal degradation

DNA topoisomerase II (topo II) is a nuclear enzyme that modifies DNA topology and also serves as a target to mediate the cytotoxicity of several antineoplastic agents. Several reports demonstrate that a reduction of topo II is associated with reduced sensitivity to these agents. Topo II exists as two isoforms in mammalian cells, topo IIÃ and topo IIß. In the first part of this study, we examined the expression of topo II isoforms throughout the cell cycle. Western blot analysis of synchronized cell populations revealed that topo IIÃ levels fluctuate through the cell cycle with levels being low in G1, rising through the S-phase and reaching a peak at G 2/M, whereas topo IIß was relatively constant through all phases. Two-dimensional flow cytometric, analysis also demonstrated accumulation of topo IIÃ as cells progress from S to G2/M followed by a rapid decline in G1, once again with no change in topo IIß expression through the cell cycle. Accordingly, the hypothesis was formulated that degradation of topo IIÃ at the G2/M to G1 transition was mediated by the ubiquitin-proteasome pathway. (Abstract shortened by UMI.)
The future of modernity

If prevailing attitudes put forward by recent cultural, social and political theory can be trusted, modernity does not appear to have much of a future. This dissertation considers the future 'of' modernity by exploring the future 'in' modernity, by exploring, in other words, the future orientation characteristic of modernity. Following a brief theoretical overview that establishes a contrast between the temporality of the ancient and medieval worlds (a future orientation hemmed in by past experiences and practices) and the temporality specific to modernity (a future orientation unshackled from past experiences and practices), diagnostic readings of some important writings of Kant, Hegel, and Marx are offered to elucidate that which emerged as a problem for modern temporality, namely, the need for temporal coordination. This need for temporal coordination could but become acute in a period that witnessed the proliferation of new experiences and practices which could not be easily explained, or contained, by past experiences and practices. The readings offered show how all three political philosophers assemble new, modern ways of connecting the modes of time by recasting the meaning of the past and the significance of the future for the modern present. If considered as moments of modern futurity which, when taken together, provide insight into the problem of modern temporality, then the readings offered should also help to diagnose our current rapport with the future. To this end, it is argued that the problem we face today is not the end of modernity, but the return of a problem that arose with the advent of modernity.
Tree hugging and green bigotry, challenging imperialism in environmental approaches

This thesis examines how racialized bodies participate and negotiate their place within the Northern environmental movement dominated by white bodies. The entrenchment of white subjects in the movement emerged from the historical processes of European expansion and imperial relations which created formalized systems of knowledge about the natural world and bestowed authority upon white bodies in discoursing the environment. Colonial relations also produced racist ideologies which sustained unequal power relations in the contemporary world. These ideologies are rearticulated in environmental discourses and have the effect of marginalizing immigrants and ethnic minorities from the Northern environmental movement. The research underlying this thesis is framed around the author's narrative and the perspectives articulated by seven immigrant activists. These accounts invoke the concept "immigrant" as one fraught with powerful signification, gesturing resistance and oppression. They also raise questions concerning how race, class and gender identities inform notions of citizenship, equity, participation and activism.
Declustering spatial data for range and join queries

The efficiency of performing database queries using multiple computers is dependent on the declustering of the data. Techniques are presented to decluster spatial data to optimize the response times of range and join queries, where the join queries use an intersection predicate. Experiments were performed using rectangular data, from both real and synthetic datasets, using between 1 and 12 nodes in a shared-nothing environment. Range queries were performed with the Filter Tree and joins with 'S'3' J'. Experiments on single nodes revealed that the execution times of range and join queries can be estimated accurately by considering the input sizes and predicting the output sizes. This can be done accurately with multi-dimensional histograms. Formulas are also presented to predict the times required for communication and other steps necessary for multi-node queries. Further experiments, then, showed that, using this knowledge, and the declustering techniques developed here, it is possible to decluster data such that nodes are assigned the min-max workload. Doing this allows us to realize good response times for multi-node queries using the Filter Tree and 'S'3' J'. Finally, we demonstrate that our formulas are accurate enough that we are able to determine the best declustering method for large sets of combined range and join queries.
Ice scouring as a geologic agent: Pleistocene examples from Scarborough Bluffs and a numerical model

In southern Ontario, extensive outcrops of glaciolacustrine muds and shoreface sands of Late Pleistocene age are exposed near Toronto, and were deformed by floating ice masses in an ancestral ice-dammed Lake Ontario. Outcrop mapping and a GPR survey identify ice scour structures up to 4 m, 10 m wide and at least several hundred metres; long and underlain by sub-scour sediment deformations up to 5 m below the scour. The scours also have ridged margins, as observed in modern scours. Paleoenvironmental information can be derived from ancient ice-scoured strata using an FEM numerical model of sub-ice scour deformation. For the largest ice scour exposed at Scarborough, ice mass is 0.04 Mt, keel draft is 10 to 30 m and scouring force is 5 * 103 kN, consistent with a small ice berg or pressure-ridged lake ice. Estimates of ice mass dimensions are consistent with independent sedimentological reconstructions of paleobathymetry.