VictorJuiz/thesis huggingface dataset:
Constructing colonial hegemony in the Somaliland protectorate, 1941-1960

This thesis is about the structure of colonial cultural hegemony in British Somaliland in the late colonial period, 1941-1960. The narrative takes 1941 as its starting point because that date marks a radical discontinuity in the activities of the British administration. In August 1940, Italy invaded and occupied Somaliland. Seven months later, the British re-conquered the territory, and began "a new historic chapter in the history of British Somaliland."1 The military administration ended the policy of care and maintenance that was in force in the territory in the early colonial period, and introduced a new policy of "social development, welfare services and education"2 under which "administration and social services (were extended) throughout the Protectorate: the old days of the coast administration based on Berbera had gone for ever." 3 The policy of social and economic development was established within the framework of mass education, which linked different aspects of colonial social and economic development: formal and informal education, public health, political reform, and community development. All were considered as inseparable aspects of the "one programme of mass education." This thesis analyses that one programme of mass education. It argues that mass education played a central role in the construction and reinforcement of colonial cultural hegemony in Somaliland in the era of decolonisation. 1Lord Rennell of Rodd, 'British Military Administration of Occupied Territories in Africa During the Years 1941-1947' (London: HMSO, 1948), p.487. 2PRO, INF 1/567/339, The Deputy Principle Information Officer, Hargeisa, to the Principle Information Officer, East African Command, 4 July 1944. 3I. M. Lewis, 'A Modern History of Somalia: Nation and State in the Horn of Africa' (Boulder: Westview Press, 1988), p. 132. Lewis's work deals with the colonial histories of both (British) Somaliland and (Italian) Somalia. Because the two countries formed a federation in 1 July 1960 called "Somali Republic". This focus of this thesis is on Somaliland.
An examination of environmental performance and eco-efficiency in the North American gold mining industry

This paper provides a historical account--since the advent of major environmental legislation circa-1970--of the changes in environmental performance in the North American gold mining industry, and provides an overview of eco-efficiency at North American gold mines. The paper begins with an examination and critique of various pieces of literature in an attempt to clarify how corporate environmental "best practice" has evolved in North America over the past three decades, and to illustrate the basic types of corporate environmental management strategies that exist today. From this review, a model of different corporate environmental management approaches--here called the "Corporate Environmental and Social Performance Spectrum (CESPS)"--is developed for use in the sections to follow. The remainder of the paper is devoted to illustrating trends of environmental performance in the North American gold mining industry, namely the changes that have occurred over the past three decades, and what environmental direction the industry is moving in today. Specific environmental data and complementary qualitative analysis contained in various sources are used for the historical assessment of environmental performance, and results from a questionnaire that had been distributed to the industry are used to show what types of management strategies and technologies are being employed to deal with sector-specific environmental problems today. (Abstract shortened by UMI.)
Direct labelling presents new opportunities to study blood leukocyte migration

Leukocyte traffic in the blood compartment is a dynamic and complex process. There is a constant influx of leukocytes from primary lymphoid organs and recirculating lymphocytes via the lymphatic system, which is counterbalanced by monocyte and lymphocyte emigration from the blood and leukocyte death. These ongoing processes working in coordination to maintain blood leukocyte homeostasis produce characteristic half-times of leukocytes within the blood compartment. The half-times of fluorescently labelled monocytes, neutrophils, and lymphocytes were investigated in the blood of sheep. The results obtained represent the most detailed and technically advanced halftimes to date. In addition a methodology was established to directly label the entire blood leukocyte pool in situ, and the functional ability of lymphocytes to recirculate was assessed post labelling. This method establishes the framework for many novel experiments to be performed investigating low frequency blood leukocyte populations that were not previously possible.
The role of p53 in radiation-induced apoptosis in the adult mouse CNS

Central nervous system (CNS) tumours, are treated with radiation. However, radiation-induced injuries can be severe. Loss of oligodendrocytes through apoptosis may contribute to these injuries. The p53 transcription factor may mediate radiation-induced apoptosis in these cells. To determine the involvement of p53 in the adult CNS, p53 wildtype, heterozygous and knockout mice were irradiated. In p53 +/+ mice, glial cells upregulated p53 after irradiation and oligodendrocytes and subependymal cells underwent apoptosis. CNS cells in p53 -/- mice were resistant to XRT-induced apoptosis, demonstrating a requirement for p53. Preliminary studies with primary cultures demonstrated that astrocytes were resistant to radiation-induced apoptosis and showed neither p53 nuclear accumulation nor nuclear translocation following radiation. Future studies will determine the contribution of p53-dependent radiation-induced apoptosis in the adult CNS to the development of late radiation injury and the regulation of p53 localization following radiation.
Analysis of high-speed modulation of semiconductor lasers by electron heating

This thesis reports on a comprehensive study using microwave field to vary the electron temperature (energy) in the active region of a semiconductor laser, and thereby to indirectly change the optical transition and to achieve high speed modulation. This modulation scheme is termed the "Electron Heating Modulation". The objective is to perform a feasibility study of this modulation scheme, and to identify the principal difference and limitations in comparison with the traditional scheme. The Auger recombination is not included in this preliminary study. The gain calculation for a bulk semiconductor laser, taking into account both the electron concentration and its temperature, demonstrates that the transparency carrier concentration and the differential gain are both strongly dependent of the electron temperature. In view of the fact that the modulation bandwidth of conventional Current Injection Modulation is limited by the spontaneous recombination time, a new modulation method combining the Electron Heating Modulation and the Current Injection Modulation, is an intriguing alternative and deserves a thorough evaluation. This is attempted here. (Abstract shortened by UMI.)
A longitudinal outcome study of intrusive luxation injuries to permanent maxillary incisors of children and adolescents

A longitudinal outcome study was undertaken to identify variables that significantly influenced tooth survival and pulpal and periodontal outcomes of intruded permanent maxillary incisors of children and adolescents All cases were treated between June 1988 and June 1998 at The Hospital for Sick Children. Clinical and radiographic data were collected for 26 patients (19 males, 7 females) and 31 permanent maxillary incisors. Mean age at the time of injury was 9.3 years (range 5.5-17.8 years). All pulpal and periodontal outcomes were observed at follow-up. Survival analysis was used to identify variables significantly related to the survival and pulpal necrosis for these incisors. Proportional hazards regression yielded significant prognostic models for survival and the diagnosis of pulpal necrosis ('p' < 0.05 and 'p' < 0.02 respectively). Incisors intruded >6mm had a significantly decreased survival compared with incisors intruded <3mm (5 year survival 0.45 and 1.0 respectively; 'p' < 0.01). Complex crown fractures were significantly related to the development of pulpal necrosis 'p' < 0.01). Logistic regression analysis showed that treatment method and severity of intrusion were related to the presence of RRR ('p' < 0.04). This study represents the largest sample of intruded permanent incisors examined in an outcome study of children and adolescents exclusively. This information will be useful to clinicians and parents involved in emergency and follow-up care of these injuries.
The politics and process of partnership, a case study of the Aboriginal Healing and Wellness Strategy

This dissertation explores new Aboriginal-Canadian relations that seek to move beyond colonial social relations and discourses. While both Aboriginal and Canadian societies may desire a just and workable relationship, competing visions and understandings of what constitutes the post-colonial operate as a sub-text in actual policy negotiations between Aboriginal and Canadian governments. Cultural difference, as articulated through Aboriginal epistemology and embodied in the Aboriginal vision of co-existence, emerges as an unexplored terrain in liberal discourse. This helps to explain why many attempts at dialogue fail at the negotiating table. In addressing the issue of difference I argue that while liberal discourses may recognize Aboriginality as part of a pluralistic worldview, the failure to enter into and embrace the content of that difference prevents new, truly bi-cultural relations from emerging. Because the content of difference is not entered into, an important epistemological dimension is left out of most analyses of Aboriginal-Canadian relations. A discussion of Aboriginal epistemology and postmodern positions on the issue of difference offers a partial resolution and way forward. Following Leonard, a move from domination and oppression requires a dual commitment to difference 'and' to solidarity that is based on a different ethic, that of interdependence. To understand the implications of this possibility for Aboriginal-Canadian co-existence, I analyze the development of the Aboriginal Healing and Wellness Strategy as a case study in joint policy-making involving a partnership between Aboriginal organizations and government ministries in Ontario. As a unique exercise, this partnership provides an instructive example of how such relations can be constructed when Aboriginal difference is taken into account and employed. Based on participants' accounts and my own engagement with Aboriginal epistemology, this case study reveals key dynamics in terms of the politics and the processes that can facilitate and impede movement towards an Aboriginal post-colonial vision of co-existence. The journey from the colonial to the post-colonial involves a shift from dichotomous ways of conceptualizing difference in relation to sameness towards a more wholistic, inclusive and dynamic conception that incorporates difference 'and' commonality discovered in the process of co-operating together.
The role of the drosophila learning and memory gene dunce (DNC) in synaptic transmission

The dunce (dnc) gene of Drosophila encodes a cAMP-specific phosphodiesterase. Drosophila dnc null mutants, which exhibit elevated cAMP levels, have an enhanced number of synapse-bearing nerve ending varicosities at the larval neuromuscular junction (NMJ), coupled with augmented neurotransmission. I investigated the effects of localized dnc overexpression on nerve terminal morphology and neurotransmission using transgenic lines of Drosophila. dnc overexpression in muscle cells alone, or in both muscle cells and motor neurons, results in a reduction of the number of varicosities and depresses whole-cell synaptic strength. These effects are opposite to those in dnc null mutants and suggest that altered levels of dnc expression (and hence cAMP levels) influence the morphology of synaptic contacts and the strength of synaptic transmission. Consequently, an optimal level of cAMP is probably necessary for the normal formation of synaptic contacts and normal synaptic function.
The total synthesis of xestomanzamine A

The first efficient and practical route to C-5 functionalized N-methylated imidazole is reported. 5-Iodo-1-methylimidazole was synthesized in four steps from imidazole with complete regiospecificity in 73% overall yield. The synthesis of xestomanzamine A, a marine natural product isolated in 1995 from an Okinawan sponge of 'Xestospongia' sp., was achieved using 5-iodo-1-methylimidazole as a precursor to a modified Grignard reaction with a ß-carboline moiety. The total synthesis of xestomanzamine A was achieved in 59% yield based upon imidazole and 53% based upon tryptamine. Two pathways were investigated for the synthesis of the closely related xestomanzamine B from 5-iodo-1-methylimidazole. Although unsuccessful, these attempts offer practical alternatives for the preparation of precursors, which can be used to complete this synthesis in the future.
Experimental constraints on the chromite-melt partitioning behaviour of rhenium and platinum-group elements

Abundant geochemical and petrological data exists to suggest that chromite may be an important phase in concentrating and fractionating the PGEs in mafic/ultramafic systems. To investigate this possibility, chromite/silicate- and sulphide-melt partitioning experiments have been conducted at conditions of pressure, temperature and fO2 appropriate for basalt genesis. Trace elements in run products were determined 'in situ' using laser ablation ICP-MS, which allowed us to discern both phase homogeneity and detect the presence of sulphide or alloy contaminants. Experiments yielded absolute chromite/silicate melt partition coefficients (Ds) for Re (0.15) and maximum values for the PGEs (Ru < 10.1; Os < 4.3; Ir < 1; Pd < 0.23; Rh < 0.17). Results indicate that Re and some PGEs are incompatible in chromite, whereas compatibility of other PGEs is significantly less than previously considered. As an alternative to the PGEs being in solid solution in the chromite structure, textures produced in our experiments show entrapment of PGE-rich phases (sulphide/alloy) during chromite crystallisation, which may best explain the PGE-chromite association.
Lipid levels and the binge eating pattern in women with eating disorders

The hypotheses tested were that plasma lipids would be elevated in anorexia nervosa patients who binge eat (AN-B) and bulimia nervosa patients (BN), compared to controls; and that group differences in lipids would be unaccounted for by dietary content. This is based on reports of hypercholesterolemia in eating disorders, and evidence linking large meal size to hyperlipidemia. After completing a 3-day dietary record, fasting total cholesterol, LDL, HDL, and triglycerides were measured in 30 females (10 AN-B, 10 BN, 10 controls). AN-B subjects had significantly higher lipids than controls, with the exception of HDL (n.s.). Unexpectedly, the AN-B group had significantly higher total and LDL levels than the BN group, but HDL and triglycerides were not significantly different. No differences were found between the BN and control groups. The differences in lipids of the AN-B group compared to BN and controls could not be accounted for by dietary content.
Soul mapping in the workplace, creating organizations that better reflect the whole human being

Soul is a largely ignored topic in the area commonly referred to as "spirituality in the workplace." As the essence of our creativity and passions, it is an integral aspect of creating better organizations. In order to bring soul more fully into the workplace, we will need to appreciate the gifts it offers and the consequences of neglecting it. An organization that is not "soulful" will not be a place that encourages individuals to bring more of their energies into their work. This conceptual thesis aims to find new ways of seeing ourselves and our organizations; not to replace current theories, but to enhance them to more fully allow the complexity and paradoxical nature of our lives to be contained in the workplace. The metaphor of a soul map is used to illustrate how organizations can better reflect the whole human being. The five theme clusters of this map are used to explore soul in the workplace.
Holistic changes in school structure and organization

In this thesis I examine the bureaucratic structure and organization of schools developed within social systems that reflect a western, industrial-based, consumer-oriented, patriarchal and anthropocentric orientation. I proffer that these structures are inhibiting factors that impede many dedicated educators from implementing innovative programs. I argue that our schools need to embrace more organic models that view problems and solutions as systemic and promote holistic development of our institutions. My research is a story, revealed in a case study and reported as a narrative, of the staff of a junior high school who embark on a transformational journey toward creating a holistic school structure and classroom organization. The foundational transformation is the creation of a team of three teachers and approximately 75 students. This community of learners, located in one large classroom, is inclusive and remains together for three years. The day is blocked and the team of teachers is responsible for all the core subjects and delivers them on their schedule. Other transformations include the use of integrated curriculum, authentic student assessment (centered around student-led conferences based on portfolios), and community partnerships. Administration has been changed from a hierarchical principal - vice-principal - teacher organization to an administration team that includes a teacher member from each classroom team. In order to frame the narrative analysis, I review historical influences, including progressive education, team teaching, open and middle school movements. This history, along with an in-depth look at long-term student-teacher relationships, the essence of the project, provides a vivid backdrop for the Jubilee Junior High School story. Using interviews, observations and documents from the teachers, students, parents, and community members who were involved, as well as my personal experience as principal and researcher, I recount the story in an integrated narrative. The data is presented in a dialogic format, which allows all participants to be acknowledged and not hidden or overpowered by the voice of the researcher. The narrative analysis of the Jubilee School project indicates that the most powerful element in the transformation of the structure and organization of the school is the development of strong, long-term relationships among participants of the team. Spending five hours together each school day for three years provides the students and teachers with an opportunity to collaborate and to gain a sense of continuity. Available time to develop trust in each other facilitated the establishment of significantly deeper caring and committed relationships. Other strengths identified include an increase in student responsibility, more open and ongoing communication among all participants, a greater number of involved and informed parents, teachers with an increased feeling of efficacy, shared leadership, and sustained professional collaborative support.
One-carbon metabolism in adults with major depression

Several lines of evidence support a disturbance in one-carbon metabolism (OCM) in depression. The current study evaluated principal components and cofactors, in OCM, and polymorphism of methyltetrahydrofolate reductase (MTHFR) in unmedicated depressed subjects (n = 26) as compared with healthy controls (n = 26). Neither group took vitamin supplements. Results indicated that compared with control subjects, depressed subjects had significantly lower methionine levels (p = 0.012), and significantly higher serum folate levels (p = 0.005). Among depressed subjects there was a significant negative correlation between methionine (p = 0.001), glycine (p = 0.027) and Hamilton Rating for Depression (HAM-D), and a positive correlation between red cell folate (p = 0.005), S-adenosylhomocysteine (p = 0.006), vitamin B12 (p = 0.032) and HAM-D. Depressed subjects were more likely to be heterozygous for the MTHFR C667T allele as compared with controls (53.8% vs 28.0%, p = 0.019). The pattern of dysfunction in OCM in this study suggests that a substantial disturbance in both methionine synthetase and MTHFR may exist in major depression.
Developmental programming of the hypothalamic-pituitary-adrenocortical axis in the guinea pig

In North America 10% of women receive glucocorticoid treatment during late pregnancy yet the effects on brain development are unknown. We examined the effects of fetal exposure to synthetic glucocorticoids in late gestation, on HPA development and subsequent function in offspring. Pregnant guinea pigs were injected with dexamethasone or vehicle on days 50 and 51 of gestation. On day 52, one group was killed, while another group was allowed to deliver and juvenile guinea pigs were killed on postnatal day 18. Plasma ACTH, and cortisol levels were measured by radioimmunoassay. GR and MR mRNA levels were determined by ISH. Fetal dex-exposure had the following effects: In fetuses: Plasma ACTH and cortisol concentrations increased as did the expression of hippocampal MR mRNA and GR mRNA levels, but the effect was confined to females. In juveniles: No change in basal plasma ACTH concentrations but increased basal plasma cortisol concentrations in males. Limbic GR mRNA levels decreased in females but increased in males. Limbic MR levels showed a strong tendency towards a decrease in males but not females. Therefore, maternal dex-treatment during rapid brain growth permanently modifies neuroendocrine development and subsequent function and these effects are sex-specific. These effects are associated with, and may be mediated by, changes in the development of central glucocorticoid feedback mechanisms within the brain.
Probabilistic analysis of schedule risks for building construction

Research was undertaken to develop a method to assist in the determination of the lower and upper activity duration values for schedule risk analysis by Monte Carlo simulation. Belief network was the tool used for this purpose. The development of belief network model consisted of four steps. First, construction schedule risks were identified through a literature review, an expert review, and a group review by a team of experts. Second, cause-effect relationships among these risks were identified through an expert survey. This led to the development of the structure of belief network model. Third, probabilities for various combinations of parents for each risk variable were obtained through an expert interview survey and incorporated into the model. And fourth, sensitivity analysis was performed besides testing with historical data to verify the model. At the end, a user interface was developed using MS Visual Basic for making the model user friendly.