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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
21

White screen, black masks : Othello and the performativity of race on stage and screen

Connelly, Daniel R. January 2003 (has links)
This thesis attempts to expose stereotypologies of black African skin as performed on the Shakespearean stage and before the Shakespearean camera. My research engages with a number of Tudor/Stuart travel narratives and plays containing imperialistic denigrations of Negritude. To accompany these early revelations of the 'unknown' black Other, I effect a close performative and historical consideration of Shakespeare's Othello (1602). By critiquing the repetitive containment of the character of Othello, the Moor, by successive theatrical ideologies, I work towards a full analysis of his twentieth-century representation on film. Here, through positioning myself within contextual, postcolonial, and methodological discourses surrounding representations of Othello by Orson Welles (1952), Stuart Burge (1965), and five other directors from 1981 to the present day, I confirm and analyse the politicisation of both genuine and masked blackness. In asserting that Welles's ninety-minute statement is powerfully emancipated from white ideological constraint, I nonetheless conclude that the Elizabethan and Jacobean tropes employed in dramatic formulations of black skin retain powerful visual significance within the contemporary film industries that interpret Shakespeare's Moor of Venice.
22

Optimal deployment of wildlife law enforcement agents with analyses of agent productivity

Cowles, Cleveland J. January 1979 (has links)
A decision-aid system. for determining and achieving optimal distributions of wildlife law enforcement manpower was developed. Manpower distributions were computed by means of a workload formula for a case study application in the J.E.B. Stuart Enforcement District, Virginia Commission of Game and Inland Fisheries. A linear programming model was used to determine least cost methods of achieving prescribed manpower distributions. Simulations of permanent relocations and hiring of personnel were performed to evaluate the impact of management decisions on costs of achieving prescribed distributions. In the case study, total transfer cost resulting from simulated permanent relocation of personnel was 73% that of the present distribution, total transfer cost of simulated hiring of new personnel was 94% that of the present distribution. A simulation of inappropriate location of new personnel resulted in an increase in total transfer cost of 22% over that of the present distribution. These findings were relevant only to the case study; however, the use of the system as a general purpose simulator was demonstrated. Studies were performed of the relationships of patrol area environmental attributes, agent personal background characteristics, enforcement methods, enforcement effort, and season with enforcement efficiency (quality arrest score per enforcement hour). A wildlife law violation seriousness scale was developed in order to compute the measure of enforcement efficiency. Observations were obtained from Virginia wildlife law enforcement agents during November 1977, February, May, and August 1978. Patrol area intensity of 20 environmental variables, 25 personal background variables, 5 enforcement methods variables, total enforcement hours, and 4 study periods were independent variables. Two and 3-way interactions were detected by automatic interaction detection (AID) among total quality arrest score (QAS) by patrol, total QAS by response to citizen notification, and total enforcement hours. Analysis of covariance by multiple regression procedures indicated that methods of enforcement, effort, and their interactions we.re more closely associated with enforcement efficiency than other major categories of independent variables. Total QAS by patrol, total QAS by investigation, an interaction of total QAS by patrol and total enforcement hours, total QAS by response to citizen notification, total QAS by stakeout, and effort showed the greatest association with the dependent variable. To a lesser degree, agent rank, months of service, and whether the agent had been fired from previous employment were also shown to be associated with enforcement efficiency. Only one environmental attribute, the intensity of water recreation in the patrol area, was associated with enforcement efficiency. These results generally supported assumptions employed in the decision-aid system. / Ph. D.
23

Synthèse d’Analogues Bis-azotés de la Proline et Applications / Synthesis of Bis-nitrogen Containing Proline Analogous and Applications

Voss, Emelyne 12 October 2011 (has links)
La liaison peptidique au sein d’un peptide ou d’une protéine est d’ordinaire plane et en conformation trans pour la majorité des acides aminés. La situation est un peu différente en amont d’une proline : la barrière thermodynamique qui s’oppose à la rotation de la liaison amide est plus faible et la tendance de la liaison à rester plane est un peu moins grande. Cette liaison AA-Pro peut donc adopter une conformation cis, entraînant la formation d’un coude prononcé dans une chaîne peptidique à son niveau. Ce travail décrit la synthèse et la réactivité chimique de nouveaux analogues bis-azotés de la proline en solution permettant de favoriser la conformation cis d’une liaison AA-ΨPro. L’impact conformationnel que peut engendrer ces résidus au sein de pseudopeptides est également exposé. Dans un premier temps, une nouvelle voie d’accès à la α-azaproline énantiomériquement pure et orthogonalement protégée a été mise au point en exploitant des travaux antérieurs concernant la synthèse d’α-hydrazinoesters et de N-aminodipeptides. L’étude de la réactivité de cette pseudoproline a permis de définir les meilleures conditions de formations de pseudotripeptides de formule P1-AA1-δ-azaPro-AA3-P3. Elle a également orienté les travaux, dans un second temps, vers la synthèse de pseudopeptides incorporant un motif acide pyrazolique. Enfin, la structure des composés préparés a été analysée par RMN, IR et par modélisation moléculaire. L’examen des P1-AA1-δ-azaPro(Boc)-AA3-P3 a révélé la formation par liaison hydrogène d’un pseudocycle en C7, favorisant la conformation trans de la liaison AA1-δ-azaPro, alors que l’absence de la fonction Boc favorise la conformation cis de cette liaison. / The peptidic bond in a peptide or a protein is usually flat and in trans conformation for the majority of amino acids. The situation is a little bit different upstream the proline: the thermodynamic barrier which opposes the rotation of the amide bond is weaker and the tendency of the bond to remain flat is lesser. So, this AA-Pro bond can adopt a cis conformation, leading to the formation of a turn in the peptidic chain. This work describes the synthesis and the chemical reactivity of new bis-nitrogen analogous of proline in solution to facilitate the cis conformation of a AA-PΨPro bond. The conformational impact that these residues may generate in pseudopeptides is also exposed.Initially, a new access road to the orthogonally protected and enantiomerically pure δ-azaproline has been developed by exploiting previous work on the synthesis of α- hydrazinoesters and N-aminodipeptides. The study of the reactivity of this pseudoproline helped define the best conditions for forming pseudotripeptides of formula P1-AA1--δ-azaPro-AA3-P3. It also guided the work, in a second step, towards the synthesis of pseudopeptide incorporating a pyrazole acid motif. Finally, the structure of the prepared compounds was analyzed by NMR, IR and molecular modeling. Examination of the P1-AA1-δ-azaPro(Boc)-AA3-P3 revealed the formation of a pseudocycle C7 by a Hydrogen bond, favoring the trans conformation of the AA1-δ-azaPro bond, while the absence of Boc function seems to favor the cis conformation of this bond.
24

Embodied souls, ensouled bodies : an exercise in christological anthropology and its significance for the mind/body debate, with special reference to Karl Barth's 'Church dogmatics' III/2

Cortez, Marc January 2006 (has links)
Contemporary developments in cognitive neuroscience are having a profound impact on the philosophy of mind as philosophers work to understand the implications of these advances for appreciating what it means to be a human person. At the same time, a recent consensus has formed among contemporary theologians around the thesis that Jesus Christ is the revelation of what it means to be truly human. Unfortunately, very few thinkers have made any concerted effort to bring these two developments into dialogue with one another. This study addresses this lack by drawing on the anthropological insights of Karl Barth and bringing them to bear on certain aspects of the contemporary discussions regarding the mind/brain relationship. The thesis thus comprises two major sections. The first develops an understanding of Karl Barth’s theological anthropology focusing on three major facets: (1) the centrality of Jesus Christ for any real understanding of human persons; (2) the resources that such a christologically determined view of human nature has for engaging in interdisciplinary discourse; and (3) the ontological implications of this approach for understanding the mind/body relationship. The second part of the study then draws on this theological foundation to consider the implications that understanding human nature christologically has for analyzing and assessing several prominent ways of explaining the mind/body relationship. This study, then, is an exercise in understanding the nature of a christocentric anthropology and its implications for understanding human ontology. While it will devote significant attention to the theology of Karl Barth and various contemporary philosophers of mind, its fundamental aim is to draw together these apparently disparate fields of inquiry by engaging both theology and philosophy in a vital dialogue on the nature of the human person as revealed in the person and work of Jesus Christ.
25

Late-Stage Peptide Diversification via Transition Metal-Catalyzed C─H Activation

Wang, Wei 17 September 2020 (has links)
No description available.
26

An investigation into the role of forward head posture as an associated factor in the presentation of episodic tension-type and cervicogenic headaches

Duani, Victor January 2010 (has links)
Dissertation submitted in partial compliance with the requirements for a Master's Degree in Technology: Chiropractic, Durban University of Technology, 2010. / Forward head posture (FHP) is a common postural abnormality, often associated with myofascial trigger points which can result in head and neck pain. The craniovertebral (CV) angle lies between a horizontal line running through C7 spinous process and a line connecting C7 spinous process to the tragus of the ear. The smaller the angle the greater the FHP. Cervical musculoskeletal abnormalities have often been linked to headache types, most especially episodic tension-type headache (ETTH) and cervicogenic headaches (CGH). Objectives: To determine whether an association exists between FHP, distance of the external auditory meatus (EAM) from the plumbline and cervical range of motion and the presentation of ETTH and CGH. Method: This was a quantitative comparative study (n=60) comparing three equal groups, one with ETTH, CGH and healthy controls. The FHP of the Subjects FHP was assessed by measuring the CV angle. A lateral digital photograph was taken to assess the distance of the external auditory meatus from the plumbline. Lastly, cervical range of motion was measured. The two symptomatic groups also received a headache diary for a fourteen day period monitoring frequency, intensity and duration of their headaches. Result: The two symptomatic groups had a smaller CV angle and a greater distance from the plumbline (p<0.05) than the asymptomatic group. The asymptomatic group had a significantly greater flexion (p=0.009), extension (p=0.038) and left rotation (p=0.018) range of motion than the two symptomatic groups. The CGH group had a significant positive correlation between the distance of the EAM from the plumbline and the intensity of headaches. The ETTH group had a significant positive correlation between the right craniovertebral angle and the mean duration of headaches. Conclusion: Therefore, it can be concluded that patients presenting with ETTH and/or CGH may have associated postural abnormalities that may act as a trigger or a contributory factor to the presenting headache. / Durban University of Technology
27

An investigation into the role of forward head posture as an associated factor in the presentation of episodic tension-type and cervicogenic headaches

Duani, Victor January 2010 (has links)
Dissertation submitted in partial compliance with the requirements for a Master's Degree in Technology: Chiropractic, Durban University of Technology, 2010. / Forward head posture (FHP) is a common postural abnormality, often associated with myofascial trigger points which can result in head and neck pain. The craniovertebral (CV) angle lies between a horizontal line running through C7 spinous process and a line connecting C7 spinous process to the tragus of the ear. The smaller the angle the greater the FHP. Cervical musculoskeletal abnormalities have often been linked to headache types, most especially episodic tension-type headache (ETTH) and cervicogenic headaches (CGH). Objectives: To determine whether an association exists between FHP, distance of the external auditory meatus (EAM) from the plumbline and cervical range of motion and the presentation of ETTH and CGH. Method: This was a quantitative comparative study (n=60) comparing three equal groups, one with ETTH, CGH and healthy controls. The FHP of the Subjects FHP was assessed by measuring the CV angle. A lateral digital photograph was taken to assess the distance of the external auditory meatus from the plumbline. Lastly, cervical range of motion was measured. The two symptomatic groups also received a headache diary for a fourteen day period monitoring frequency, intensity and duration of their headaches. Result: The two symptomatic groups had a smaller CV angle and a greater distance from the plumbline (p<0.05) than the asymptomatic group. The asymptomatic group had a significantly greater flexion (p=0.009), extension (p=0.038) and left rotation (p=0.018) range of motion than the two symptomatic groups. The CGH group had a significant positive correlation between the distance of the EAM from the plumbline and the intensity of headaches. The ETTH group had a significant positive correlation between the right craniovertebral angle and the mean duration of headaches. Conclusion: Therefore, it can be concluded that patients presenting with ETTH and/or CGH may have associated postural abnormalities that may act as a trigger or a contributory factor to the presenting headache. / Durban University of Technology / M
28

Self powered wrist extension orthosis

Singer, Mathew Kyle January 2006 (has links)
One of the most devastating effects of tetraplegia is the inability to grasp and manipulate everyday objects necessary to living an independent life. Currently surgery is widely accepted as the solution to improve hand functionality. However, surgery becomes difficult when the user has paralysed wrists as is the case with C5 tetraplegia. The aim of this research was to develop a solution which provided controlled wrist flexion and extension which, when combined with surgery, achieves a 'key pinch' grip. This particular grip is critically important for people with C5 tetraplegia as it is used for countless grasping activities, necessary on a day-to-day basis. A systematic design process was used to evolve the solution to provide controlled wrist flexion and extension. Concept brainstorming identified four alternative solutions which were evaluated to find the preferred concept. The chosen solution was called the Self Powered Wrist Extension Orthosis, more commonly referred to as the 'orthosis'. This concept contained a shoulder harness which provided both energy and control to the wrist harness, which in turn changed the wrist position. The orthosis was developed with the use of a mathematical model which theoretically predicted the functional performance by comparing the required force needed to move the wrist harness to the achievable force supplied by the user's shoulders. Using these parameters, the orthosis was optimized using the matlab Nelder-Mead algorithm which adjusted the wrist harness geometries to maximize the functional performance. A prototype was constructed and tested with the help of two participants who when combined, achieved an average of 18.5° of wrist rotation. The theoretical model however predicted an average range of motion of 28.4°. The discrepancy found between the theoretical and experimental result can be contributed to incorrect assumptions in the theoretical model. This included unaccounted friction and inaccurate modeling of the orthosis dynamics. The feedback from potential users of the orthosis was enthusiastic and encouraging especially towards the simplicity, usability and practicality of the design.
29

The nexus of control : intentional activity and moral accountability

Conradie, Niël January 2018 (has links)
There is a conceptual knot at the intersection of moral responsibility and action theory. This knot can be expressed as the following question: What is the relationship between an agent's openness to moral responsibility and the intentional status of her behaviour? My answer to this question is developed in three steps. I first develop a control-backed account of intentional agency, one that borrows vital insights from the cognitive sciences – in the form of Dual Process Theory – in understanding the control condition central to the account, and demonstrate that this account fares at least as well as its rivals in the field. Secondly, I investigate the dominant positions in the discussion surrounding the role of control in moral responsibility. After consideration of some shortcomings of these positions – especially the inability to properly account for so-called ambivalence cases – I defend an alternative pluralist account of moral responsibility, in which there are two co-extant variants of such responsibility: attributability and accountability. The latter of these will be shown to have a necessary control condition, also best understood in terms of a requirement for oversight (rather than conscious or online control), and in terms of the workings of the dual system mechanism. I then demonstrate how these two accounts are necessarily related through the shared role of this kind of control, leading to my answer to the original question: if an agent is open to moral accountability based on some activity or outcome, this activity or outcome must necessarily have positive intentional status. I then apply this answer in a consideration of certain cases of the use of the Doctrine of Double Effect.
30

The political, communal and religious dynamics of Palestinian Christian identity : the Eastern Orthodox and Latin Catholics in the West Bank

Coffey, Quinn January 2016 (has links)
Despite the increasingly common situation of statelessness in the contemporary Middle East, a majority of the theoretical tools used to study nationalism are contingent upon the existence of a sovereign state. As such, they are unable to fully explain the mechanisms of national identity, political participation, and integration in non-institutional contexts, where other social identities continue to play a significant political role. In these contexts, the position of demographic minorities in society is significant, as actors with the most popular support –majorities -- tend to have the strongest impact on the shape of the political field. This thesis demonstrates what we can learn from studying the mechanisms of nationalism and political participation for one such minority group, the Palestinian Christians, particularly with regards to how national identity fails or succeeds in instilling attachment to the state and society. This is accomplished by applying the theoretical framework of social identity theory to empirical field research conducted in the West Bank in 2014, combined with an analysis of election and survey data. It is argued that the level of attachment individuals feel towards the “state” or confessional communities is dependent on the psychological or material utility gained from group membership. If individuals feel alienated from the national identity, they are more likely to identify with their confessional community. If they are alienated from both, then they are far likelier to emigrate. Additionally, I suggest that the way in which national identity is negotiated in a stateless context is important to future state building efforts, as previous attempts to integrate national minorities into the political system through, e.g., devolved parliaments and quotas, have failed to instil a universal sense of the nation.

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