identifier: Guy, Clifford Scott <https://research.library.mun.ca/view/creator_az/Guy=3AClifford_Scott=3A=3A.html>   (2008) Intrahepatic innate immunity in hepadnaviral infection in the woodchuck model of hepatitis B.  Doctoral (PhD) thesis, Memorial University of Newfoundland.

abstract: Hepatitis B virus (HBV) causes lifelong chronic liver disease in approximately 400 million people worldwide. The causative factors underlying resolution of HBV infection and the development of chronic hepatitis B are not completely understood, although an inadequate anti-viral immune response is considered to be important in establishing chronic symptomatic infection. In this regard, previous studies have demonstrated the significance of broad strong innate and anti-HBV adaptive immune responses in inhibition of hepadnaviral replication and resolution of acute hepatitis. -- The contribution of the liver to induction and maintenance of peripheral immune tolerance or to decreased immune responsiveness is increasingly recognized. These functions may in part be ascribed to the unique cellular composition of the liver, including a disproportionately high number of innate immune cell subsets and specialized antigen presenting cells. Liver cells, including hepatocytes, also appear to contribute to the immune response by interacting with naïve or activated T cells. -- We hypothesized that hepatocytes can act as effector immune cells and they can directly shape hepatic immune responses and that the natural tolerizing properties of the liver may contribute to an impaired effectiveness of the anti-viral response in hepadnaviral infection. To investigate these possibilities, we utilized experimental hepadnaviral infection in woodchucks infected with woodchuck hepatitis virus (WHV), which represents the closest virological and pathogenic model of human HBV infection and hepatitis B. -- In the first study, we discovered that normal hepatocytes constitutively express CD95 ligand (CD95L) and can cause death of contacted cells via a CD95L-CD95-dependent mechanism. Furthermore, interferon-gamma (IFNγ) and, to a lesser extent, tumour necrosis factor-alpha (TNFα) can enhance hepatocyte CD95L-mediated cytotoxicity. This suggests that the local cytokine environment may modulate the contribution of hepatocytes to liver immunity. Subsequently, we discovered that hepatocytes also express biologically competent perforin capable of cell killing. The ability of hepatocytes to cause cell death by two different but complementary mechanisms, differentially regulated by the cytokine microenvironment, emphasized the role of hepatocytes as cytotoxic effectors while demonstrating for the first time that perforin is expressed by non-immune cells. -- Further investigations revealed that hepatocyte CD95L and perforin-mediated cytotoxicity is significantly augmented during chronic hepadnaviral hepatitis and following recovery from acute infection. This could be a consequence of increased intrahepatic production of IFNγ due to virus-induced liver inflammation and strengthens the possibility that hepatocytes may actively contribute to shaping the local immune environment in hepadnaviral infection. On the other hand, a direct contribution of WHV to augmented hepatocyte cytotoxicity was excluded in a series of in vitro experiments applying woodchuck hepatocyte lines stably expressing WHV genome or its individual genes. -- In a final study, quantitative analyses of intrahepatic hepadnaviral replication and molecular markers indicative of activation of innate and adaptive immune responses, using real-time RT-PCR assays, revealed that hepadnavirus establishes replication almost immediately following exposure to a large, liver pathogenic virus dose and that the innate response is promptly activated. However, this response appears to be insufficient in priming an effective adaptive T cell response capable of early virus elimination. These findings indicate that, in contrast to observations in HBV-infected chimpanzees, hepadnavirus is recognized immediately after invasion by the hepatic innate immune system. -- Taken together, hepatocytes constitutively display cytotoxic capabilities which are susceptible to cytokine-induced augmentation. Hypothetically, this hepatic local cytotoxic activity may constrain priming of adaptive T cells by activated innate immune effectors due to deletion of virus-specific T cells. This paradigm would favour the expansion of virus replication in the liver during the prolonged incubation period typically seen in hepadnaviral infection, prior to the extrahepatic development of effective antiviral T cell responses capable of resolution of acute hepatitis. The relevance of this paradigm to the establishment of chronic hepadnaviral hepatitis will require further investigation.


identifier: Sanchini, Laura Marie Andrea <https://research.library.mun.ca/view/creator_az/Sanchini=3ALaura_Marie_Andrea=3A=3A.html>   (2009) "It's strange, we're not Italian but we're not Canadian either" : the performance of ethnic identity among young Montreal Italians.  Masters thesis, Memorial University of Newfoundland.

type: Thesis NonPeerReviewed

abstract: This thesis examines the ethnic and cultural identity markers of some Montreal Italians under the age of 35. The ethnography upon which this study rests was collected through personal, e-mail and phone interviews during the summer of 2008. This study focuses on how members of the Italian community in Montreal choose to shape and inform their ethnic identity through fluid and dynamic identity markers. First, the thesis introduces the reader to the Montreal Italian community and the main informants who were interviewed for this study. As well, the concepts of identity and ethnicity are examined within a folkloric framework. Next, the thesis delineates three case studies. Chapter Three examines the issue of fragmented identity and the change in intergenerational identity markers, using Our Lady of Mount Carmel Church as an example of a constantly evolving and complex marker of Italian identity. Visits to Italy by members of the younger generation of Montreal Italians are the focus of the fourth chapter as a way in which my informants reinforce their Italian identity. Finally, in Chapter Five, traditional food preparation such as tomato-canning is explored as a performance of identity and a way to shape and negotiate ethnic association.


identifier: Jaouher, Mohamed Reda <https://research.library.mun.ca/view/creator_az/Jaouher=3AMohamed_Reda=3A=3A.html>   (2010) La littérature féminine d'expression française au Maghreb une histoire de lutte.  Masters thesis, Memorial University of Newfoundland.

abstract: Ce mémoire se propose d'étudier l'évolution de la littérature féminine d'expression française au Maghreb. Cette littérature, qui était au début de la période coloniale consacrée aux hommes, est devenue dans les années qui suivent les indépendances des pays du Maghreb une littérature qui intéresse les femmes-écrivains. Ces dernières ont pu surmonter plusieurs obstacles pour pouvoir se distinguer dans une société qui considère l'écriture comme étant une activité masculine. --  De plus, la naissance de plusieurs associations féminines a encouragé la femme à s'aventurer dans l'écriture et dans les récits féminins. Les femmes-écrivains ont trouvé en la littérature un moyen qui leur permet de contester la situation de la femme dans une région qui vit toujours sous la dominance masculine. Enfin, nous faisons une analyse du roman Ombre Sultan d'Assia Djebar, ce qui nous donne une idée sur les sujets que traitent les femmes-écrivains dans cette région.


identifier: Dawe, Louise N.  <https://research.library.mun.ca/view/creator_az/Dawe=3ALouise_N=2E_=3A=3A.html>   (2008) Ligand directed self-assembly of polymetallic [nxn] (n = 2,3,4) grid platforms: synthesis, structure and magnetism.  Doctoral (PhD) thesis, Memorial University of Newfoundland.

abstract: Metallo-supramolecular [n × n] Mn₂ transition metal grid arrays (with n = 2, 3 and 4) were synthesized by self-assembly reactions with new ditopic imidazole hydrazone, tritopic picolinic dihydrazone and tetratopic pyridazine bis(hydrazone) ligands. Mono-, di-, trinuclear, [2×2] M₄ grid and trigonal-bipyramidal clusters formed by self-assembly reactions between the ditopic ligands and metal salts. Their structural characterizations suggest a possible route to the self-assembly of [2×2] M₄ grid and trigonal-bipyramidal architectures. Homometallic [3×3] M₉ (M = Mn(II), Co(II), Cu(II) and Zn(II)) and heterobimetallic [3×3] Mn(II)₅Cu(II)₄, Mn(II)₅Zn(II)₄ and Mn(II)Cu(II)₈ grids, based on a [M₉-(μ-O₁₂)] core framework were synthesized. Their structural characterizations, in particular the identification of the Jahn-Teller axes, leading to strict orbital orthogonality and ferromagnetism in the Cu(II) containing complexes, formed the basis for magnetic interpretation and modeling. [3×3] Mn(II)₉, Cu(II)₉ and Co(II)₅Co(III)₄ grids synthesized by self-assembly reactions between metal salts and tritopic ligands with quinoline-type endpieces, leading to extended structural motifs through intermolecular face-to-face and edge-to-face π-π interactions are also reported. 4×[2×2] M₁₆ (M = Mn(II), Co(II), Cu(II) and Cu(II)₁₂ Cu(I)₄) grids were synthesized, and their magnetic properties modeled as compartmental [2×2] M₄-(μ-Ohydrazone)₄ squares for the Mn(II)₁₆ and Co(II)₁₆ in complexes. The structural characterization of the Jahn-Teller axes leading to a combination of orthogonal and non-orthogonal orbital connections for both of the Cu₁₆ grids allowed for fairly simple magnetic models to be devised.


identifier: Mukhtasor <https://research.library.mun.ca/view/creator_az/Mukhtasor=3A=3A=3A.html>   (2001) Hydrodynamic modeling and ecological risk-based design of produced water discharge from an offshore platform.  Doctoral (PhD) thesis, Memorial University of Newfoundland.

abstract: This study has two major components: hydrodynamic modeling and ecological risk assessment (ERA) of produced water discharge. The genera objective was to develop a framework for ecological risk-based design of produced water discharge from an offshore platform. This consisted of six more specific objectives: (1) developing an initial dilution model; (2) integrating the developed initial dilution model with a far field dilution model; (3) developing a methodology for probabilistic hydrodynamic modeling; (4) identifying methodologies for ERA of produced water discharge; (5) developing a framework for ecological risk-based design of a produced water outfall; and (6) applying the framework to a case study dealing with the discharge from an offshore oil platform. -- Conceptual and numerical problems associated with presently available initial dilution models were elaborated in this study. A new approach to initial dilution modeling was proposed based on the hypothesis of additive shear and forced entrainment combined with nonlinear regression. Unlike the previous approach, which is typically "trial and error", the proposed approach is systematic and provides an objective means of evaluating the initial dilution model. Based on the proposed approach, an alternative initial dilution model was then developed. The  developed model is more robust and justifiable conceptually and numerically. It gives a unique, continuous, solution of centerline dilution. A comparison with other available models shows that the proposed model is better in a number of ways: (1) it does not assume that the current has no effect in the buoyancy-dominated near field (BDNF), which other available models do; (2) in the buoyancy-dominated far field (BDFF) region the model has one parameter fewer than a previously available model yet it is no less accurate; (3) in the transition region it gives a unique solution which the asymptotic models do not; (4) unlike the previous models, the proposed model has approximately the same precision for all regions, i.e. the BDNF, the BDFF, and the transition; and (5) the proposed model can also be presented in a probabilistic form that permits calculation of failure probability for specified model inputs and a threshold dilution. -- Hydrodynamic modeling was carried out by integrating near and far field models. The developed initial dilution model was used as the near field model. The far field model and the control volume approach for connecting near and far field models were adapted from published methods. A comparison using a case study showed that the proposed hydrodynamic model and the Cornell Mixing Zone Expert System (CORMIX) model are generally in good agreement, particularly in estimating average effluent concentrations. However, the proposed model also provides the concentration field in the X-Y directions so that it may be applicable for analysis of mixing zones, which in some cases is defined in terms of the horizontal area around the discharge location. The proposed model can also be readily used in a probabilistic analysis to take into account the uncertainty associated with the model inputs, model coefficients and error term. The probabilistic analysis was carried out using Monte Carlo (MC) simulations. A comparison between random sampling and Latin Hypercube Sampling (LHS) showed that LHS-based MC simulations were typically about 15% more efficient than the random sampling MC simulations. -- In the context of produced water discharges, ERA has usually been directed at monitoring purposes. In the past, there is no consideration to the integration between ERA and engineering design of the produced water outfalls. In this research, an approach was identified to deal with specific problems relevant to design of produced water discharge in the marine environment. It consists of three phases, i.e. problem formulation, analysis, and risk characterization. A framework of ecological risk-based design was then developed by integrating the methodology of hydrodynamic modeling and ERA discussed above. The framework was presented systematically using a case study by evaluating design scenarios of produced water discharge relevant to an offshore oil production platform, the Terra Nova oil field, located on the Grand Banks, southeast of St. John's, Newfoundland, Canada. Instead of providing a solution for a particular problem of an existing oil production platform, the emphasis of the case study is to show how the risk-based design of produced water discharge could be undertaken.


identifier: Breen, Rhonda Marie <https://research.library.mun.ca/view/creator_az/Breen=3ARhonda_Marie=3A=3A.html>   (2007) Initial reading acquisition and phonological development: a developmental sequence.  Masters thesis, Memorial University of Newfoundland.

abstract: The purpose of the study was to outline the development of children's initial reading and phonological-processing skills. As a first step towards literacy, children learn letter names, and then several months later, as a second step, children develop onset identity and onset phonetic-cue reading. These in turn are followed a few months later by coda identity and coda phonetic-cue reading. Grapheme-phoneme correspondences are acquired for onsets before codas, and knowledge of grapheme-phoneme correspondences develops before onset and coda deletion, respectively. Children can recognize which one word out of three does not rhyme before they can recognize which word has a different onset or coda. Grapheme-phoneme correspondences for onsets and codas are needed before children can identify the word with the different onset or coda. To read words by analogy, children need to know grapheme-phoneme correspondences for onsets and codas. However, only children with well-established onset- and coda-deletion ability were proficient in reading words by analogy. Although phoneme-counting ability and reading and spelling were significantly correlated, the significance disappeared when age was statistically controlled. The findings do not support the theory that there is a causal relationship between phoneme counting or phoneme awareness and reading and spelling ability.


identifier: Ralph, Stewart C. (Stewart Clifford) <https://research.library.mun.ca/view/creator_az/Ralph=3AStewart_C=2E_=28Stewart_Clifford=29=3A=3A.html>   (2010) Leadership in rural education : programming and policy implementation.  Masters thesis, Memorial University of Newfoundland.

abstract: This qualitative study examined aspects of rural education in Newfoundland and Labrador. A phenomenological approach was used to describe the essence of the experiences of rural teachers and administrators in the province. Questionnaire responses revealed the views of rural educators' personal encounters with community, programming, and policy. -- The study was driven by the following research questions: -- • How can rural schools provide programming that motivates students while challenging them and preparing them for life after school? -- • How can rural schools implement policies and expectations, according to the standards of today's education system and society as a whole? -- • Are rural communities resistant to the provision of an education that is in line with current societal standards? -- • How can rural schools provide the highest possible quality education? -- The findings in the study reveal the significant role that both distance education and multi-grading play in rural programming, with support requested in both areas. Study participants also described some perspectives of small schools and the nature of rural community interactions. A major finding in the study was the sociological perspective that rural communities, in their attempts to maintain individual cultural identities in an infringing, globalizing society, may be in part responsible for some of the challenges that face rural education.


identifier: Schmidt, Glen G. <https://research.library.mun.ca/view/creator_az/Schmidt=3AGlen_G=2E=3A=3A.html>   (2002) How long are you staying?: retention of social workers in northern child welfare practice.  Doctoral (PhD) thesis, Memorial University of Newfoundland.

abstract: Retention of social workers in the field of child welfare is poor. The problem is made even more difficult in northern and remote regions of Canada. This exploratory research examines the factors that contribute to retention and turnover at work sites in the western part of Canada. A purposive sample of 12 northern sites was developed in the Yukon, northern British Columbia, northern Alberta, northern Saskatchewan and northern Manitoba. Four urban sites in the lower mainland of British Columbia were developed for contrast. A total of 86 social workers at the various sites completed survey questionnaires and 101 social workers participated in focus group interviews. A total of 27 supervisors from the same site locations participated in individual structured interviews. The questionnaires and interviews were organized using a SWOT (strengths, weaknesses, opportunities, and threats) format. This also provided a convenient way to organize the results. The SWOT format required participants to consider positive as well negative elements related to the question of retention. The data was analyzed using a combination of qualitative and quantitative methods. The use of different data sources allowed for triangulation in analysis of the results. The findings suggest that workers and supervisors are attracted to such factors as living and working in a small town, the opportunities associated with generalise northern practice, opportunities for quick career advancement, and the appeal of the northern environment. The northern location, high cost of living, visibility, safety issues, travel, and lack of amenities and resources contribute negatively to the issue of retention. The results of the research are discussed in terms of their significance for retention strategies, social work education, and the development of a model of northern social work practice. More community involvement in recruitment and hiring, changes in the employment interview, and increases in employee benefits are suggested as possible strategies for improving retention of child welfare workers in remote northern work locations. Social work educators need to pay more attention to the challenges faced by northern practitioners. Generalist practice, independence, multidisciplinary practice, personal-professional tension, and factors associated with geography are seen to be key dimensions of a model of northern social work practice.


identifier: Mahfouz, Ayman B. <https://research.library.mun.ca/view/creator_az/Mahfouz=3AAyman_B=2E=3A=3A.html>   (2001) Identification of the hydrodynamic model of an underwater robotic vehicle heaving and pitching near the sea surface using its measured response.  Doctoral (PhD) thesis, Memorial University of Newfoundland.

abstract: An accurate estimation of the hydrodynamic parameters for Underwater Robotic Vehicles (URV) is a top priority for the designing of the control strategies for such vehicles. The identification of these parameters constitutes a main difficulty in the development of a URV. Several methods have been developed to estimate such parameters. These methods include: strip theory, slender body theory, semi-empirical approaches, and parametric identification. Most of these methods have many assumptions and drawbacks that restrict their applicability. -- I am mainly concerned with the parametric identification. One of the advantages of parametric identification is that if it can be done in real time then one can have a tool for updating the dynamic model as the vehicle moves through the water. Responses obtained using this model will be realistic and increase the chances of having better control of the vehicle. -- In this dissertation, I develop a new robust technique for the identification of the damping, restoring, and coupling parameters in the equations describing the coupled heave and pitch motions for an URV sailing near the water surface in random waves. The developed technique is called RDLRNNT, which is a combination of the random decrement technique, multi-linear regression algorithm, and a neural networks technique. RDLRNNT requires only the measured coupled heave rand pitch responses for the URV in random waves and does not require a prior knowledge of the wave excitation. The developed technique would be particularly useful in identifying the parameters for both moderately and lightly damped motions under the action of unknown wave excitations affected by a realistic sea. -- Numerically generated data for the coupled heave and pitch motion of an URV are used initially to test the accuracy of the technique for both different levels of damping and a wide range of damped natural frequencies in heave and pitch motions. Moreover, several case studies are further investigated to test the dependency of the developed technique on the wave excitation forms. Two different excitations are investigated: a wide-band and a narrow-band form. -- Experimental data are also used to validate the identification technique for different functions of wave excitations and different towing speeds. Three main experimental variables are further investigated: the significant wave height (Hs), the wave modal frequency (Ω), and the towing speed (U).


identifier: Lillis, Ashlee <https://research.library.mun.ca/view/creator_az/Lillis=3AAshlee=3A=3A.html>   (2009) Lobster postlarval and early juvenile ecology: interacting effects of physical processes and behaviour.  Masters thesis, Memorial University of Newfoundland.

abstract: Physical and biological processes interact during early life stages to determine the distribution and abundance of larvae of many marine benthic species, including the commercially and ecologically important American lobster, Homarus americanus. Following planktonic development, lobster postlarvae seek benthic habitat to occupy during a juvenile phase. Past studies of lobster settlement and post-settlement behaviour have rarely considered the effects of physical factors. To test whether lobster settlement is affected by flow, I conducted flume experiments. Flow increased settlement by increasing substrate encounter through passive deposition and modification of searching behaviours. To examine shelter fidelity of recently settled juvenile lobster, the behavioural response of 3-month-old lobsters to shelter warming and cooling was tested. Lobsters behaved aversively in response to cooler temperatures, and abandoned their shelter to move to warmer water. These studies of the interactions between physical factors and early lobster behaviour enhance our understanding of  spatial and temporal variability in populations and our ability to identify habitats for conservation.


identifier: Rada, Paulina <https://research.library.mun.ca/view/creator_az/Rada=3APaulina=3A=3A.html>   (2009) Impacts of climate change and variability on tourism in western Newfoundland.  Masters thesis, Memorial University of Newfoundland.

abstract: Gros Morne National Park and Marble Mountain are primary attractions for tourists who enjoy outdoor activities. Ideal weather conditions can be defined for outdoor recreational activities during the summer or winter seasons. Climate change and variation influence the length of recreational seasons. The connections between changes and variations in climate conditions and outdoor activities were investigated using meteorological records and the linear trends of these parameters as measures of climate change and variation. Four weather stations were analysed as representative for Western Newfoundland: Daniel's Harbour, Deer Lake, Corner Brook and Stephenville. The mean parameters analysed were mean temperature, mean maximum and minimum temperature, total precipitation, snowfall, wind direction and wind speed monthly values. Daily mean maximum temperature, total precipitation, speed of maximum wind gust, snow on the ground, and hourly visibilities affect the suitability of conditions for outdoor activities. -- Overall, the regional pattern shows a general temperature increase since 1933, most evident in summer and spring. Seasonally, winters recorded the highest variability in the number of warm and cold years. Spring, summer, and autumn recorded periods of strong variability of mean temperature between the early 1950s and mid-1990s.  Prior to 1998-2007, the mean maximum and minimum temperature showed substantial variation. All temperature parameters showed general increases in the decade 1998-2007. -- All four sites show increases in precipitation and snowfall in all seasons throughout the available data series since 1933. Although in general summer outdoor activities show an increase of suitability for hiking and boat touring, differences between locations are dictated by wind speed and the number of days without precipitation. The tendency of variability of snow cover has a negative impact on snowmobiling and cross-country and back-country skiing. Although there is a general decline in snow cover duration, the data show substantial variability. For instance, the record at Daniel's Harbour in 1964 showed 141 days with snow cover, and in the following year there was a record 205 days with snow cover. -- Landscape touring remains a viable alternative for tourism under warmer summers and winters. Although evidence of climate change can be assessed by tourism operators, for planning and adaptation, increasing climate variability has potentially negative consequences for tourism, making planning outdoor recreational activities more difficult for both visitors and operators.


identifier: Labron, Timothy <https://research.library.mun.ca/view/creator_az/Labron=3ATimothy=3A=3A.html>   (1998) John 1:14a and Rudolf Bultmann's hermeneutical method.  Masters thesis, Memorial University of Newfoundland.

abstract: "Kαì ó λóγος σὰρξ έγένετο" - "and the Word became flesh" (John 1:14a)--is a key verse in the thought of Rudolf Bultmann. His interpretation of this verse is, in fact, paradigmatic for understanding his whole hermeneutical method. Yet the conventional understanding of his interpretation of 1:14a and, consequently, his hermeneutical method, is beset with misunderstandings. -- The difficulty of understanding Bultmann's hermeneutical method results from placing it in a Cartesian context, which seeks a clear and objective interpretation. Bultmann's thought, however, resists such Cartesian contextualization. A post-structural context, which similarly rejects Cartesianism, is better suited as a context for understanding Bultmann's thought. -- It is imperative, however, that John 1:14a and the theological principle of justification by faith be shown as the core of his thought, rather than reducing his hermeneutical method to a philosophy. By the juxtaposition of a post-structural context, John 1:14a, and justification by faith, a renewed and more fruitful discussion of Bultmann and his hermeneutical method may follow.


identifier: Stuckless, Susan N. <https://research.library.mun.ca/view/creator_az/Stuckless=3ASusan_N=2E=3A=3A.html>   (2001) Inter-regional comparisons in the pattern of use and needs for institutional care.  Masters thesis, Memorial University of Newfoundland.

abstract: As the percentage of elderly people increases so does the demand for long-term care services. To ensure that the elderly will be properly cared for in the future, the efficiency of resource utilization needs to be maximized. As a result, the current study looked at the appropriateness of client placement and the annual demands for long-term care in both Western and Labrador health care regions of Newfoundland and Labrador. Comparisons were then made to findings in the St. John's region. -- The appropriateness of client placement, the efficiency of the single entry system and an estimate of the annual demands for long-term care were determined for both Western and Labrador using study populations of 178 and 51 respectively. A tendency to recommend clients for a higher level of care than they required was consistent with previous findings in the St. John's region. The percentage of clients suffering from impaired cognition was also high and Labrador had long waiting times for placement and a high occupancy rate of acute care beds by clients awaiting placement. -- To overcome the issue of inappropriate placement, minimal criteria for placement into supervised care and nursing home care facilities may need to be established. Alternate housing facilities for those with low to modest disability and those suffering from impaired cognition may also reduce the number of inappropriate nursing home placements. To reduce waiting list sizes and time to placement, waiting lists must follow some management scheme, such as placement based on assessed need, and target times for placement must be developed.


identifier: Powell, Chris <https://research.library.mun.ca/view/creator_az/Powell=3AChris=3A=3A.html>   (2000) Leadership and staff in the Union of Northern Workers from 1967 to 1996.  Masters thesis, Memorial University of Newfoundland.

abstract: The Union of Northern Workers, known as the Northwest Territories Public Service Association prior to 1987, is the largest labour union in the Northwest Territories. Northern labour is a little explored field in Canadian history, and as such, this work surveys new ground. Trade unionism in the North's private sector began at the close of the Second World War. The UNW, however, like most public sector unions in Canada, had its roots in the 1960s. This study examines issues pertaining to the union's leadership and staff from 1967, when correctional workers in Yellowknife first organized, until the 1996 convention, when the union took steps to divide into two separate unions in anticipation of the creation of Nunavut in 1999. -- From its start, the union's geographic jurisdiction distinguished the UNW as unique among Canada's public service unions. It and its predecessor, the NWTPSA represented workers in Canada's most northern reaches. The challenges of life in the North were as real for the union as they were for its members. A relatively small membership spread across such a huge land mass presented obstacles with regards to leadership and service. Also, cultural factors differentiated the organization from others. With an increasing native membership, mostly Inuit, Inuktitut became the union's second language. Distinguishing the union institutionally was its component status within the Public Service Alliance of Canada. The quality of the relationship between these two bodies regularly fluctuated between excellent and belligerent. Similarly, the union's relationship with the Northwest Territories Federation of Labour degenerated from founding member to pariah status, in spite of the UNW comprising the overwhelming majority of the Federation's membership. -- As the union grew from a fly-by-night, seat-of-the-pants organization of less than 100 members at its inception, to over 5,000 when it divided, leadership and staffing gained increasing importance. To meet the challenges of representing northern workers, the union increasingly attempted to professionalize its leadership cadre. The effect of this was an increasing distance between members and leaders which ultimately resulted in the secession of the Nunavut membership.


identifier: Azam, Md. Ali <https://research.library.mun.ca/view/creator_az/Azam=3AMd=2E_Ali=3A=3A.html>   (2010) Investigation of organic losses in solvent extraction circuit due to solubility/degradation.  Masters thesis, Memorial University of Newfoundland.

abstract: Solvent losses in a solvent extraction circuit are some of the most important issues. The losses of solvents may occur in a several ways in any solvent extraction process, which include solubility in the aqueous phase, entrainment, evaporation/volatilization, crud formation and degradation. To prevent the loss of the extractant during metal extraction process the solubility/degradation loss of different organophosphorus acidic extractant were investigated. Two types of extractant candidates such as Cyanex 272 (bis-2, 4, 4-trimethylpentylphosphinic acid) and D2EHPA (Di-(2-ethylhexyl) phosphoric acid) were examined. Sulphuric acid (H₂SO₄) was used in this experiment as an aqueous medium. Phosphorus (P) content in the aqueous phase was measured by inductively coupled plasma spectroscopy (ICP). Initial concentrations of phosphorus in all the reagents were measured before contacting with aqueous phase which acts as a baseline concentration of phosphorus. After contacting with organic phase the solution were transferred to the seperatory funnel for at least 24 hr to attain equilibrium and complete phase separation. The aqueous phase was separated and centrifuged to avoid any kind of entrained organic. To be more accurate SP1 filter paper was used before ICP analysis of the aqueous solution. Based on phosphorus content in the aqueous phase, the effect of different parameters such as acid concentration, extractant concentration, temperature, diluent concentration, metal concentration and impurity concentration were investigated. The kinetics study on the solubility/degradation was also investigated in this research at 25 °C and 50 °C. -- Phosphorus in the aqueous phase might come due to the solubility or degradation or phosphorus dissolution of Cyanex 272 and D2EHPA. In order to ascertain the source of phosphorus a gas chromatographic (GC) analysis of the organic sample was performed followed by mass spectrometry (MS). Initially, gas chromatography of each reagent and solution were performed separately before and after contacting with acid. No degraded compound or material was found from the GC-MS analysis. By combining and analyzing the results from ICP-MS or GC-MS, the conclusion is that though there are some solvent losses in the aqueous phase due to the phosphorus dissolution, there is no degradation of Cyanex 272 and D2EHPA in the experimental condition that had been used.


identifier: Colbert, Carolyn M. <https://research.library.mun.ca/view/creator_az/Colbert=3ACarolyn_M=2E=3A=3A.html>   (1998) "Iudge if ought therein be amis" : the paradox of Edmund Spenser's Queen.  Masters thesis, Memorial University of Newfoundland.

abstract: Queen Elizabeth I is a figure of immense complexity: a woman who manifested the power of a prince, who ruled over a society that invested all authority, except that related to the sovereign, in men, and who embraced a notion of personal chastity that included qualities alien to that chastity practiced by other women. Consequently, she became the locus of iconographic interpretation. One of her interpreters is Edmund Spenser. In The Faerie Queene, he responds to the complications inherent in the conflation of female and monarch. Although he is her subject, he also retains a power--to instruct, celebrate, and criticize-related to his literary vocation. He does praise Elizabeth, and the encomia in The Faerie Queene are easily recognizable. However, it is too facile to project only the complimentary images of the queen. This thesis considers how Spenser reacts to the contradictions and ambiguities arising from Elizabeth's anomalous and radical position. Furthermore, it analyzes how his queen, shadowed as Gloriana, Belphoebe, Britomart, and Amoret, among others, is a paradox: she is transmuted into allegorical figures who evoke expressions of celebration, as well as tension, hostility, and criticism.


identifier: Varma, Gottumukkala Chandrasekhar <https://research.library.mun.ca/view/creator_az/Varma=3AGottumukkala_Chandrasekhar=3A=3A.html>   (2000) Ice loads on propellers under extreme operating conditions.  Masters thesis, Memorial University of Newfoundland.

abstract: The research focus is on ice-class propellers. Methods exist for predicting hydrodynamic and contact ice loads on conventional ice-class propellers under normal operating conditions in ice. These have been used to develop a preliminary design and analysis procedure for propeller blade strength. The present research aims to extend these ice load predictions to extreme and transient operating conditions. -- To address these extreme conditions, a numerical model was developed using existing empirical results of ice-structure interaction. This model was incorporated into an existing Fortran code for predicting ice loads on propellers under normal operating conditions. The refined code was used to predict loads on a series of propellers under extreme operating conditions such as when the propeller was stopped and the ship is moving and these results were used to check the design procedure. -- To verify the correctness of the numerical model a series of model scale indentation tests were performed at the Institute of Marine Dynamics, using an MTS machine. A propeller blade shaped indentor with a geometry of that of R-Class propeller was used as an indentor to indent against laboratory grown ice. The tests were performed at high speeds. These results are compared with the numerical simulations.


identifier: Doyle, Sherry Marie <https://research.library.mun.ca/view/creator_az/Doyle=3ASherry_Marie=3A=3A.html>   (2009) "Knotted threads" of ambivalance: gender, narrative, and the cultural poetics of missionary experience in English-Canadian women's writing, 1833-1914.  Doctoral (PhD) thesis, Memorial University of Newfoundland.

abstract: Missionary women were ambivalent figures of social and moral change in early Canada. Their gendered experiences in the mission fields produced a variety of textual and cultural scripts that were ordered and contained, yet fractured and contradictory; their efforts at textual self-representation produced texts that were unstable bearers of cultural, literary, and personal knowledge. In this dissertation, I will explore the intersections of the shifting material, ideological, and cultural frameworks generated by missionary culture with the narrative forms and the discursive rhetorics utilized by missionary women. These intersections both permitted and constrained the articulation and emergence of female subjectivity within the textual archive generated by missionary writing culture.  This dissertation will offer close readings of four key bodies of texts written by Canadian female missionaries who represent a range of geographies and religious denominations and consider their engagement with discourses of gender, class, race, religion, nationhood and their reliance on the cultural narratives offered by imperialism, domesticity, heroism, and the civilizing mission. -- Chapter One examines the letters of the Irish religious congregation, the Sisters of the Presentation of the Blessed Virgin Mary, and analyzes how they structured female community in pre-Confederation Newfoundland using discourses of sacrifice and kinship. Chapter Two explores gender roles in the mission field and the construction of domestic life in the Canadian North through a focused examination of the writings of Anglican missionary Charlotte Selina Bompas. Chapter Three considers the mission experiences of Dr. Susie Carson Rijnhart in China and Tibet through a close reading of her book, With the Tibetans in Tent and Temple (1901), investigating her text's relationship with heroic discourse, genres such as the imperial adventure, and discourses such as salvation history. Chapter Four examines the emergence of the missionary as an imaginative category in the writings of Janey Canuck, particularly Seeds of Pine (1914), and considers how the figure and the voice of the missionary intertwined with ideas of social reform, cultural progress, and nationhood. Most research on Canadian female missionaries evaluates their writings from an historical perspective without offering close readings of individual narratives. Yet is very often within the act of self-representation that the tensions and contradictions that animated complex cultural practices such as missionary work reside, collide, and emerge. Female subjectivity, in particular, demonstrated the instability of missionary culture, capturing its contradictions and ambivalence, and hence became an important critical tool for solidifying and questioning cultural boundaries that always seemed to be in a state of flux.


identifier: Squires, Susan Elizabeth <https://research.library.mun.ca/view/creator_az/Squires=3ASusan_Elizabeth=3A=3A.html>   (2010) Insects pests and pathogens compromise the persistence of two endemic and rare Braya (Brassicaceae).  Doctoral (PhD) thesis, Memorial University of Newfoundland.

abstract: Rare and threatened plant species face a variety of threats to their persistence including habitat degradation, non-native herbivores, and pathogens. In this study we explored the effects of a non-native, agricultural pest and three pathogens on two rare vascular plants restricted to a unique ecosystem. Agro-ecosystems support many non-native insects, but their potential to find and impact rare, native plants is largely unknown. Plutella xylostella L. (diamondback moth) is a global agricultural pest of the Brassicaceae family, including the endangered Braya longii (Fernald) (Long's braya) and threatened B. fernaldii (Abbe) (Fernald's braya) that are endemic to the limestone barrens of Newfoundland, Canada. The immigration of P. xylostella from southern overwintering sites to this unique ecosystem was monitored with pheromone traps between 2003 and 2005. At the same time individually tagged Braya were monitored for the presence and impact of P. xylostella and three pathogens. Since habitat loss and deterioration is still the most important threat to the persistence of endangered species, the frequency of each pest was compared between Braya populations growing on anthropogenically disturbed and undisturbed habitat. -- Between 2003 and 2005, 30% of B. longii and 16% of B. fernaldii were infested by P. xylostella, 8.6% of the total B. longii population died from root rot (Fusarium sp.), 18% of B. longii on anthropogenically disturbed sites were infected with an unidentified pathogen causing their flowering stalks to rot, and 27% of B. fernaldii in northern sites were infected with an unidentified pathogen causing flowering stalk and leaf deformities. Impacted plants contributed between 9% and 75% less seeds to annual seed production than healthy, flowering plants and had a statistically higher probability of mortality. The majority (66%-100%) of pathogen infections occurred on anthropogenically disturbed habitat. -- Stage based transition matrices created from these data and summarized into deterministic projections predict Braya populations will decline over the next 10 years. P. xylostella may negatively impact the persistence of other rare Brassicaceae worldwide because they can infest rare plants growing in native vegetation, especially when the vegetation is sparse, and they, as do the pathogens, preferentially damage flowering plants. Modelling suggests that the management of pathogens in anthropogenically disturbed populations will most improve the population growth rate, where as the management of P. xylostella in undisturbed populations will most improve the population growth rate. Presently, insufficient attention is directed to the impacts of both native and non-native agricultural pests on rare host plants; hence, there is a need for both the conservation and agricultural communities to cooperate in mitigating their impacts on native biodiversity.


identifier: Dove, Christina <https://research.library.mun.ca/view/creator_az/Dove=3AChristina=3A=3A.html>   (2008) Intracerebroventricular vasopressin produces noradrenergic β-receptor-dependent potentiation of the perforant path-evoked potential in the dentate gyrus in vivo.  Masters thesis, Memorial University of Newfoundland.

abstract: Long-term potentiation of a synaptic and/or spike response, which is widely accepted as a model for neuronal plasticity, was initially elicited by high frequency stimulation in the hippocampus (Bliss and Lomo, 1973), but can also be induced by neuromodulators like norepinephrine (NE; Neuman and Harley, 1983; Walling and Harley, 2004). The neuropeptide vasopressin (AVP) (Chen et al, 1993; Chepkova et al, 2001; Dubrovsky et al, 2002; Dubrovsky et al, 2003) also produces enhancement of synaptic responses and has a role in promoting memory (Bohus et al, 1982). In vitro studies have shown NE plays a role in AVP-initiated increases in cyclic AMP (cAMP) (Brinton, 2000; Brinton, 1993). -- It has been proposed that NE, released into the dentate gyrus in vivo mediates AVP memory enhancement (Bohus et al, 1993). This thesis examined 1) the perforant path-dentate gyrus evoked response after intracerebroventricular (icv) AVP; 2) the β-adrenergic influence on perforant path AVP effects through the use of a double pipette procedure using the β-adrenergic antagonist, propranolol; and 3) further examined the pharmacology of the perforant path AVP response by the use of the V1a selective agonist DGAVP, an AVP fragment without peripheral effects, in the urethane anesthetized rat. -- In the first experiment, AVP (1 ng; icv) produced potentiation of perforant path population spike amplitude in 15/16 animals and of the EPSP slope in 11/16 animals. AVP significantly increased the population spike amplitude with a mean increase of 50% over baseline at 30 minutes after AVP. Individual animals showed increases of up to 100% at peak potentiation. The mean increase for EPSP slope was 21%) over baseline at 30 minutes after AVP. Those experiments followed beyond an hour (n=4) showed mean amplitude increases of 100% at 60 minutes and mean slope increases of 24% at 60 minutes. At 100 minutes post AVP, mean spike amplitude was at a 90%) increase with the EPSP slope at a 16% increase above baseline. -- In the second experiment using a two-pipette recording technique, perforant path evoked potentials were recorded using a β-adrenergic antagonist (propranolol)-filled pipette and a saline-filled pipette before and after icv AVP. AVP produced a mean increase of 50% of the baseline population spike amplitude in all 6 animals on the saline pipette at 30 minutes after AVP. AVP also produced potentiation of the EPSP slope on the saline pipette in all animals with a mean increase of 25% at 30 minutes after AVP infusion. With the propranolol pipette at 30 minutes all 6 animals showed an unchanged or decreased population spike amplitude averaging 21% of baseline and a decreased EPSP slope averaging 26% of baseline. -- In the final experiment, the AVP fragment, DGAVP increased in the population spike amplitude in 3 animals with a mean amplitude of 100% above baseline at 30 minutes which remained constant at 60 minutes. DGAVP did not significantly alter EPSP slope. -- Taken together, the results of these experiments demonstrate that AVP produces long-lasting potentiation of the perforant path evoked potential in vivo in the dentate gyrus, without tetanic stimulation. This confirms in vitro experiments on the effects of AVP on the perforant path evoked potential. The dependence of AVP-induced electrophysiological potentiation on NE receptor mediation in the dentate gyrus parallels the results obtained with AVP-infusion in the dentate gyrus in vivo on the potentiation of avoidance memory and with in vitro effects of AVP potentiation of NE-mediated cAMP production.


identifier: Hallock, Sarathi C. <https://research.library.mun.ca/view/creator_az/Hallock=3ASarathi_C=2E=3A=3A.html>   (2001) Inhibition of sanguinarine induced bimodal cell death by aurin tricarboxylic acid but not by cycloheximide.  Masters thesis, Memorial University of Newfoundland.

abstract: The possible role of endonuclease and protein synthesis inhibition by aurin tricarboxylic acid (ATA) and by cycloheximide (CHX) respectively was investigated in sanguinarine induced apoptosis (PCD) and blister cell death (BCD) in K562 erythroleukemia cells. -- Studies in our laboratory have consistently shown that when K562 cells are treated with sanguinarine - a quaternary benzophenanthridine alkaloid which is reported to inhibit protein kinase C and nuclear factor NF-κB, at concentrations of 1.5 μg/ml for 2hrs induced the morphology of PCD, and at concentrations of 12.5 μg/ml for 2 hrs the morphology of BCD (blister formation). This phenomenon of dual cell death modality was termed "bimodal cell death" or BMCD (Liepins et al., 1996). -- The role of endonuclease activity and protein synthesis in PCD and BCD was assessed by the capacity of ATA and CHX respectively, to inhibit these processes. This was investigated by pretreating cells with ATA and CHX prior to sanguinarine treatment and subsequently measuring their effects on bimodal cell death using a host of standard methods: light microscopy and quantitative morphology; electron microscopy; terminal dUTP mediated nick end labelling (TUNEL) assay; annexin V binding assay (fluorescence microscopic and flow cytometric analysis); ⁵¹Cr release assay; DNA content analysis by flowcytometry; oxygen consumption studies; trypan blue assay. Results show that, while ATA pretreatment of cells inhibited PCD almost completely and BCD by 30-40%, CHX pretreatment failed to inhibit PCD and BCD. This may indicate the importance of endonuclease in sanguinarine induced PCD and to some extent in BCD. This may also signify the importance of post-translational modification of proteins rather than their de novo synthesis in both these forms of cell death. -- Discovering new drugs and understanding their mechanisms of action may lead to more effective administration of these agents with other more established therapeutics in the treatment of cancer. To this end, better understanding the mechanism of PCD and identifying novel forms of cell death like BCD, would contribute in no small measure.


identifier: Diner, Çağri <https://research.library.mun.ca/view/creator_az/Diner=3AC==0327ag==0306ri=3A=3A.html>   (2009) Identifying the symmetry class and determining the closest symmetry class of an elasticity tensor.  Doctoral (PhD) thesis, Memorial University of Newfoundland.

abstract: In this thesis, two main problems are solved and then applied to a geophysical problem. First, we identify the symmetry class of an elasticity tensor, if it exhibits a symmetry. Second, if the tensor is generally anisotropic, we find the closest symmetric elasticity tensor of a given class among all possible orientations of the coordinate systems. Using these results, we suggest a method to find the symmetry class that is the “best choice” to represent the given anisotropic elasticity tensor. -- For an application of these methods and results, we investigate the closest symmetry class of a medium that is obtained by combining two differently oriented planar structures. More precisely, we combine two transversely isotropic (TI) media that may correspond to layering and cracks in a subsurface, and whose rotation axes are neither parallel nor perpendicular to each other. Then, we find the closest symmetry class of the combined medium as the angle varies between their orientations. We give several examples for the case of two TI media where the angle between their rotation axes are small (< 15°), intermediate (40° - 65°) and large (> 75°). We see that if the angle is large enough (> 75°), then the combination can be approximated as an orthotropic medium. If the angle is small (< 15°) then the resultant medium is close to TI symmetry. However, intermediate angles between the structures may or may not give the symmetry of the combined medium close to a higher symmetry class than monoclinic. -- Moreover, we investigate the velocities of the waves propagating in a combined medium that has more than one planar structure. We find that the fastest velocity direction of the waves is not aligned with any of the orientations of the TI media that composes the medium. -- To measure closeness in the space of elasticity tensors, we use the Euclidean norm for defining a distance function. The nonlinearity and existence of several extrema makes it difficult to find the absolute minimum of the distance function among all coordinate systems. Fortunately, in the case of monoclinic and TI symmetry, the parameters of the distance function reduce to two; there are three for other symmetry classes. Thus, one can plot the monoclinic- and TI-distance functions on the surface of the two-dimensional sphere. -- We prove that the symmetry of the elasticity tensor is also a symmetry of the monoclinic-distance function and vice versa. Furthermore, we show that the monoclinic-distance function vanishes along the normals of the mirror planes of the medium. Therefore, by observing the plot one can infer the symmetry of a given elasticity tensor. The plot also allows us to guide a search for finding the absolute minimum of the monoclinic-distance function. -- We prove that the value of the orthotropic-distance function for any coordinate system is half of the value of the sum of onoclinic-distance functions along particular directions. These directions correspond to three mutually perpendicular vectors that are the normals of the mirror planes of orthotropic symmetry. This relation allows us to use the plot of the monoclinic-distance function to determine the closest orthotropic elasticity tensor. -- Furthermore, we present examples of other symmetry classes, namely trigonal, tetragonal and cubic. We see that the orientations of the closest tetragonal, trigonal and cubic elasticity tensors are either the same as, or as close as 1°, to the orientation of the minimum of the sum of monoclinic-distance functions along some particular directions. These particular directions are aligned with the normals of the mirror planes of the corresponding symmetry class. Thus, one can use the plot of the monoclinic-distance function to infer about the closeness to any symmetry class.


identifier: Temple, Julia R. <https://research.library.mun.ca/view/creator_az/Temple=3AJulia_R=2E=3A=3A.html>   (2009) "Mother of Twenty-one" : primary and elementary teachers' workloads and health in rural and urban Newfoundland and Labrador.  Doctoral (PhD) thesis, Memorial University of Newfoundland.

abstract: Research has shown that many primary and elementary teachers in Newfoundland and Labrador and elsewhere struggle with heavy workloads (Dibbon, 2004; Schaefer, 2003) that can impact their health and well-being (Messing, Seifert, and Escalona, 1997; Younghusband, 2005). Teachers' workloads are strongly shaped by gender (Acker, 1996) and place, including rural and urban contexts. However, most research on teacher workload has an urban focus, with little rural-urban comparison (Abel and Sewell, 1999). -- The purpose of this study was to examine primary and elementary teachers' workloads and health in rural and urban areas of Newfoundland and Labrador. I was guided by a theoretical framework based on a social determinants of health approach, and focusing on the importance of gender and place as determinants of health. -- My methodological approach is a feminist action research framework that divided the research into advisory, research, and feedback stages, and included writing a report for the provincial teachers' union. I conducted individual interviews with twenty-four primary and elementary teachers and six representatives of other groups in education, including parents, administrators, student assistants, the teachers' union, school boards, and the Department of Education. I also had the participating teachers complete detailed one-day task-diaries, which we then discussed in the interviews. I questioned participants on their perceptions of primary and elementary teachers' teaching and domestic workloads, the consequences of this work for their health and well-being, and their suggestions for how these workloads can be improved. Participants were invited to offer feedback on the summary report, which was incorporated into the report and this thesis. -- The teachers in this study identified five main areas of concern related to their teaching workloads: the intense and all-consuming nature of their work; emotional labour; specific tasks such as supervision duty, paperwork, planning, preparation and correcting, student evaluations, and implementing the 'Pathways' program; lack of human and material resources; and a persistent sense of invisibility. In addition, I found that teachers, particularly those with young children, were struggling to balance their teaching and domestic work. Years of experience, rural or urban location, and gender were all important factors affecting these workloads. In fact, I describe primary and elementary teaching as a "mothering profession" to reflect the way that this work is gendered so strongly around mothering. Teachers also raised a number of concerns about the effects of their workloads on their families' well-being as well as their own. These concerns included tiredness; guilt; feeling overwhelmed, rushed, or stressed; lack of time for themselves; physiological problems, such as headaches, voice problems, and lower limb pain; and difficulty taking time off when ill. Based on this research, I discuss the need for a wider understanding of the concept of well-being that takes into account teachers' and women's "ordinary suffering." Finally, I discuss teaching as a profession, and show how the changes in teachers' work reveals important insights about the relationship between gender and professional work.


identifier: Chafe, Paul <https://research.library.mun.ca/view/creator_az/Chafe=3APaul=3A=3A.html>   (2008) "Only an artist can measure up to such a place": place and identity in contemporary Newfoundland fiction.  Doctoral (PhD) thesis, Memorial University of Newfoundland.

abstract: This thesis is an examination often novels at the centre of the recent surge of artistic and literary production in Newfoundland. This rise is not only one of quantity but quality as well, as evidenced by the numerous national and international nominations and rewards garnered by these texts and the ever-expanding audience they attract both within and without Newfoundland. Annie Proulx's Pulitzer Prize-winning The Shipping News (1993) placed Newfoundland in a wider public consciousness as a harsh, unforgiving environment that paradoxically provides a nurturing and purifying home for the world-weary visitor. Reviews of Proulx's novel and the subsequent work of Newfoundland novelists like Wayne Johnston, Michael Crummey, and Lisa Moore have invariably included comments on the rugged yet beautiful landscape and its relationship to the hardy, joyful (and perhaps somewhat backward) people who occupy it. -- The encompassing notion espoused by Newfoundland's burgeoning tourism industry of an unspoiled land loved and worked by a tenacious people is both compounded and confronted by the literature produced since the publication of The Shipping News. This thesis will examine how the authors of these works present Newfoundland and Newfoundlanders by focusing primarily on the characters and their relation to place. -- Ideas central to postcolonial theory can be seen throughout the text as several of the protagonists are examined as postcolonial subjects striving for a notion of "home" on an island that continually changes identity. Patrick Kavanagh's Gaff Topsails, which tries to establish a physical and even erotic connection between its characters and the land, is examined through an ecocritical lens. The examination of Edward Riche's Rare Birds relies heavily on recent touristic discourse, while the analyses of the urban novels by Moore, Michael Winter, Paul Bowdring, and Kenneth J. Harvey use Walter Benjamin's flâneur and scholarly investigations of urban literature to investigate the fraying connection between these metropolitan protagonists and their island. Always paramount throughout this thesis is the examination of Newfoundland identities presented by these authors as extensions of a foundational, mythologized and troubled relationship with the land.


identifier: Von Hunnius, Tanya <https://research.library.mun.ca/view/creator_az/Von_Hunnius=3ATanya=3A=3A.html>   (1999) Nutritional anaemia : a multiple nutrient hypothesis concerning iron, vitamin C, folic acid and vitamin B12, in the Dickson Mounds Mississippian Period skeletal collection.  Masters thesis, Memorial University of Newfoundland.

abstract: In the realm of nutritional anaemia, iron deficiency anaemia is the one well known and most often cited cause of the skeletal alterations cribra orbitalia and porotic hyperostosis. However, this thesis has put forward the possibilities of including several other dietary factors that, when lacking in the diet, can cause anaemia. These other nutrients include vitamin C, folic acid and vitamin B₁₂. By presenting information concerning the sources, metabolism and the physiological roles each of these four nutrients play in the human body, it becomes apparent that an interrelationship exists among them. This synergism is compounded by the fact that when one of these nutrients is lacking in the diet a concomitant deficiency in another can occur. Iron, vitamin C, folic acid and vitamin B₁₂ are essential for proper maintenance of hematopoiesis. As a result, when they become deficient in the diet, the quality and quantity of mature red blood cells are altered and anaemia ensues. -- In order to extrapolate medical and nutritional literature to a paleopathological study, the Mississippian Period (A.D. 900-1500) skeletal collection from Dickson Mounds, central Illinois was analysed. This sample was utilized due to the wealth of previously published material concerning many facets of their existence, but most importantly due to the presence of cribra orbitalia and porotic hyperostosis already noted for this population. One hundred ten individuals from the 367 possible burials from this time period were used for this study due to their completeness, time constraints and available funds. A demographic profile of the population was first constructed and then a narrow focus was concentrated on the manifestations of cribra orbitalia and porotic hyperostosis. This smaller population was isolated even further via the macroscopic assessment of characteristic skeletal alterations for each specific nutrient for each individual. -- In the end, a small cohort of seven individuals possessed evidence of pathologies indicative of deficiencies and anaemia caused by the four previously mentioned nutrients used in this study. An additional sixteen individuals manifested deficiencies in at least two different nutrients. As a result, this study demonstrated that multiple nutrient deficiencies causing anaemia can be identified in one individual. The etiologies of these deficiencies may be caused by frank dietary insufficiencies related to a diet that relied heavily on maize, the pressures of sedentism, population expansion and the concomitant presence of diseases that may have altered the nutritional status of the people buried at Dickson Mounds. In effect, single nutrient hypotheses are no longer warranted for any paleonutritional study as many nutrients are synergistic and deficiencies of isolated nutrients are extremely rare.


identifier: Parsons, Matthew S. (Matthew Sidney) <https://research.library.mun.ca/view/creator_az/Parsons=3AMatthew_S=2E_=28Matthew_Sidney=29=3A=3A.html>   (2010) Looks that kill: accessory receptor phenotypes and the cytolytic activities of cytotoxic T-lymphocytes and natural killer cells.  Masters thesis, Memorial University of Newfoundland.

abstract: Natural killer (NK) cells and cytotoxic T-lymphocytes (CTL) express activating and inhibitory accessory receptors specific for class I human leukocyte antigens (HLA-I) or stress induced antigens. Signals from the ligation of these receptors are integrated to modulate T-cell mediated cytolysis and to determine NK cell cytolytic activity. Signals generated from the ligation of inhibitory receptors also mediate several other functions, such as reducing apoptosis and activation induced cell death. In mouse models these inhibitory receptors 'license' NK cells. NK cells expressing an inhibitory receptor, from mice expressing the ligand, have the ability to mediate both general and antibody-dependent cellular cytotoxicity (ADCC). NK 'licensing' also appears to account for human NK cell activity. Data from two studies have demonstrated a role for licensing of general NK cell mediated cytolysis, but data regarding ADCC are conflicting. As activating and inhibitory receptors are of much importance to both NK and T-cells, we investigated the potential expression and/or involvement of these receptors in the HLA-I unrestricted cytolysis mediated against CD4⁺ T-lymphocytes by a subset of CD8⁺ CTL in HIV infection. The TCR-dependent and HLA-I-independent CTL demonstrated a phenotype that matches generalized changes on CD8⁺ T-lymphocytes in progressive HIV infection. The CTL that killed activated uninfected CD4⁺ T-lymphocytes lacked expression of the CD56 marker and the inhibitory NKG2A receptor. We also investigated the role of NK cell 'licensing' for ADCC in humans. The potency of NK cells expressing the inhibitory KIR3DL1 receptor was investigated in samples taken from individuals expressing and not expressing the HLA-BW4 ligand. Our results suggest NK cell licensing is involved in ADCC.


identifier: Johnson, Trudi Dale <https://research.library.mun.ca/view/creator_az/Johnson=3ATrudi_Dale=3A=3A.html>   (1998) Matrimonial property law in Newfoundland to the end of the nineteenth century.  Doctoral (PhD) thesis, Memorial University of Newfoundland.

abstract: In Newfoundland, the passage of three married women's property acts between 1876 and 1895 occurred without any apparent public demand, reform movement, or community response. Although the acts expanded the definition of married women's property, they were only significant to a small minority of married women in Newfoundland at the time of their passage. This was because the legislation largely put in statutory form an existing matrimonial property system which had evolved since the earliest days of English contact. Three broad factors had contributed to the formation of this system. The first was the reception of English law of property, marriage and inheritance. Although they were clearly defined by English law they were applied as far as they could be to local circumstances in Newfoundland. A second factor was the meaning and significance of property in light of Newfoundland's place on England's agenda. From the time of England's earliest interest in Newfoundland, the cod fishery determined the definition of property on the island. As the number of permanent residents increased, there were legislative and judicial attempts to provide a framework for a matrimonial property regime. Finally, the prominent place of customary practice in the ways that residents acquired property and passed it on to future generations was a third factor influencing the evolution of matrimonial property rights. The partible inheritance system that evolved up to the end of the nineteenth century suited the social and economic conditions of the island and reflected the long-standing custom of possessory claim. Property was conveyed through gifts, deeds of conveyance, trusts, wills and by intestacy by family members who were motivated by custom, affection, and desires to provide for the economic security of the next generation as well as to recognize the beneficiaries' contribution to the survival and well-being of the family. Inheritance practices indicate a society that placed the needs and responsibilities of the family above individual rights, thus tempering the English law of coverture. -- The development of a matrimonial property regime in Newfoundland was a gradual, uncoordinated process which received little direction from England. The reception of English property law depended on the tests of local experience and utility. Similarly, late in the nineteenth century Newfoundland adopted English statutory reforms to meet local needs in a way which resolved the ambivalence and contradiction of decided cases.


identifier: Squires Ruelokke, Violet Doreen <https://research.library.mun.ca/view/creator_az/Squires_Ruelokke=3AViolet_Doreen=3A=3A.html>   (1999) Nurses' perceptions of their empowerment to be patient advocates.  Masters thesis, Memorial University of Newfoundland.

abstract: A descriptive correlational survey was designed to investigate perceptions of autonomy and attitudes toward patient advocacy in a random sample (N =183) of practising registered nurses in Newfoundland and Labrador. The effect of work-related variables and barriers/facilitators in the practice environment on nursing autonomy and enactment of the patient advocacy role was also explored. The conceptual framework for the study was based on Lydia Hairs model of nursing practice.  -- Most respondents had a RN diploma education (68%), worked in acute care settings (63.2%), were female (95.1%), and had ten or more years of nursing experience (60.5%). Data were collected over a two month period. Instruments used during data collection included the revised 47-item Pankratz and Pankratz (1974) Nursing Autonomy/Patients' Rights Questionnaire, and the modified Romaniuk (1988) Questionnaire on Patient Advocacy as a Nursing Role. The survey response rate was 23.8%. -- Study findings indicated that most nurses had positive attitudes toward nursing autonomy and patient advocacy as a nursing role, and believed they were performing the patient advocacy role, were committed to it, and had peer support. Work-related variables had a minimal effect on nurse perceptions of autonomy and patient advocacy. Community health nurses and those with greater educational preparation had more positive views toward autonomous practice and the patient advocacy role than other nurses. With regard to barriers/facilitators in the practice environment, emphasis was placed on the importance of administrative support, adequacy of knowledge and understanding of the advocacy role, and conducive work relations with peers and physicians. -- The results of this study suggest that nurses are engaging in autonomous practice and acting as patient advocates. The factors found to affect autonomy and successful enactment of the advocacy role support some of the findings from previous research. There is certainly a need to conduct further research to examine the effects of the practice environment and adequacy of preparation on autonomy and patient advocacy.


identifier: Jones, Jennifer K. <https://research.library.mun.ca/view/creator_az/Jones=3AJennifer_K=2E=3A=3A.html>   (2009) Pêcheurs, Pâturages, et petit jardins: a nineteenth-century gardien homestead in the Petit Nord, Newfoundland.  Masters thesis, Memorial University of Newfoundland.

abstract: Gardiens were anglophone settlers hired by the French fishermen in Newfoundland's Petit Nord to protect their supplies and fishing structures overwinter, and as such guard their interests in a valuable resource base. Excavations at Genille (EgAw-07) focused on the nineteenth-century homestead of an Irish Catholic gardien, Patrick Kearney, as well as the shared use of the surrounding landscape by both the Irish-Newfoundland settlers and the French fishermen. This study has three objectives: to examine the interactions between French fishermen and gardiens by looking at how negotiations of power and social relations between the two groups are manifest in the material culture and historical documents; to determine changes in landscape use over time during the transition of Genille from seasonal resource base to permanent settlement; and finally to determine the archaeological signature for an anglophone settler house in the Petit Nord.


identifier: Newstead, Sarah <https://research.library.mun.ca/view/creator_az/Newstead=3ASarah=3A=3A.html>   (2008) Merida no more: Portuguese redware in Newfoundland.  Masters thesis, Memorial University of Newfoundland.

abstract: This thesis presents a discussion of Portuguese Redware, formally known as "Merida-type ware", in late sixteenth- and seventeenth-century archaeological contexts in Newfoundland. A full review of English- and Portuguese-language literature regarding the ware begins the discussion. Portuguese Redware is then defined and production areas in Portugal for the ware are outlined. Samples from several collections, from English and French in Newfoundland are examined and a vessel form typology is presented that is applicable to Portuguese Redware in Newfoundland. The likely production provenance for the Newfoundland samples, the Aveiro region and, to a lesser degree, Lisbon, is discussed. The Portuguese Redware fabrics occurring in Newfoundland are also described. Possible export forms are discussed, such as the Portuguese Redware olive jar, as well as the differences in Portuguese Redware occurrence between sites. A preliminary trace element examination by laser ablation inductively coupled plasma-mass spectrometry of 28 Portuguese Redware sherds from Casa do Infante, Porto and Ferryland, St. John's and Placentia in Newfoundland is presented. The thesis concludes with a discussion of factors that drove the consumption of Portuguese Redware by the English and French maritime community associated with Newfoundland in the seventeenth century. These factors include trade connections between the Newfoundland cod fishery and Portuguese markets and the maritime communities' place at the cusp of the consumer revolution in the early modern period.


identifier: Shanaa, Jihad <https://research.library.mun.ca/view/creator_az/Shanaa=3AJihad=3A=3A.html>   (2008) Modeling and plume tracking study of a Newfoundland coastal outfall.  Masters thesis, Memorial University of Newfoundland.

abstract: Marine pollution is a serious environmental problem facing many industrialized and developing countries. It has short-term and long-term impacts on the ecological systems, human health, and economy. These impacts can be minimized through proper offshore and coastal zone management, continuous monitoring, and enforcement of regulations. Outfall disposal can be an effective environmental and economical method for discharging treated industrial and municipal effluents to the marine environment. This is because the dynamic nature of the ocean can enhance the dilution process of the effluent. However, if the outfall is not properly designed and monitored, it may have negative impacts on the marine biota and public health. Well designed outfalls result to better effluent mixing within the ambient water. -- In this work, the performance of an existing staged diffuser outfall design, at Spaniard's Bay, was evaluated using the Cornell Mixing Zone Expert Model (CORMIX) length scale model and compared with an alternative T-Shape riser design using Roberts, Snyder and Baumgartner (RSB) length scale model. The existing staged outfall design provided a better near-field dilution than the T-Shape riser for shallow coastal waters. For model validation and water quality assessment, an environmental monitoring experiment was carried out around the Spaniard's Bay outfall. An Autonomous Underwater Vehicle (AUV) and towed sensor platforms were used for monitoring salinity, temperature, turbidity, chlorophyll a, and dissolved oxygen. The data were statistically analyzed and mapped for plume tracking and water column assessment purposes. Turbidity and salinity observations were investigated as a natural tracer of the effluent. The turbidity values were decreasing while moving from the effluent boil to a downstream direction. The salinity variations were also decreasing while moving from the outfall to a downstream direction. The low salinity and high turbidity results of more than 13000 in-situ observations were positively correlated. As for the water quality status, the dissolve doxygen percent saturation and chlorophyll a concentrations were not significant indicating a good water circulation in the bay. The experiment results demonstrated that effluent plume can be traced by in-situ monitoring of turbidity and salinity as natural tracers. These parameters were also applied for near-filed hydrodynamic model validation.


identifier: Punchihewa, Anjana <https://research.library.mun.ca/view/creator_az/Punchihewa=3AAnjana=3A=3A.html>   (2008) On the cyclostationarity of orthogonal frequency division multiplexing and single carrier linear digital modulations: theoretical developments and applications.  Masters thesis, Memorial University of Newfoundland.

abstract: In recent years, new technologies for wireless communications have emerged. The wireless industry has shown great interest in orthogonal frequency division multiplexing (OFDM) technology, due to the efficiency of OFDM schemes to convey information in a frequency selective fading channel without requiring complex equalizers. On the other hand, the emerging OFDM wireless communication technology raises new challenges for the designers of intelligent radios, such as discriminating between OFDM and single-carrier modulations. To achieve this objective we study the cyclostationarity of OFDM and single carrier linear digital (SCLD) modulated signals. -- In this thesis, we first investigate the nth-order cyclostationarity of OFDM and SCLD modulated signals embedded in additive white Gaussian noise (AWGN) and subject to phase, frequency and timing offsets. We derive the analytical closed-form expressions for the nth-order (q-conjugate) cyclic cumulants (CCs) and cycle frequencies (CFs), and the nth-order (q-conjugate) cyclic cumulant polyspectra (CCPs) of OFDM signal, and obtain a necessary and sufficient condition on the oversampling factor (per subcarrier) to avoid cycle aliasing. An algorithm based on a second-order CC is proposed to recognize OFDM against SCLD modulations in AWGN channel, as an application of signal cyclostationarity to modulation recognition problem. -- We further study the nth-order cyclostationarity of OFDM and SCLD modulated signals, affected by a time dispersive channel, AWGN, carrier phase, and frequency and timing offsets. The analytical closed-form expressions for the nth-order (q-conjugate) CCs and CFs, the nth-order (q-conjugate) CCPs of such signals are derived, and a necessary and sufficient condition on the oversampling factor (per subcarrier) is obtained to eliminate cycle aliasing for both OFDM and SCLD signals. We extend the applicability of the proposed algorithm in AWGN channel to time dispersive channels to recognize OFDM against SCLD modulations. The proposed algorithm obviates the preprocessing tasks; such as symbol timing, carrier and waveform recovery, and signal and noise power estimation. This is of practical significance, as algorithms that rely less on preprocessing are of crucial interest for receivers that operate with no prior information in a non-cooperative environment. It is shown that the recognition performance of the proposed algorithm in time dispersive channel is close to that in AWGN channel. In addition, we have noticed that the performance of recognizing both OFDM and SCLD signals does not depend on the modulation format used on each subcarrier for OFDM and for SCLD signals respectively.


identifier: Woodland, Karen <https://research.library.mun.ca/view/creator_az/Woodland=3AKaren=3A=3A.html>   (2010) Mechanisms of voice-grievance, injury reporting, absence, turnover and adverse events and their association with collective bargaining: an analysis of Eastern Health employees, St. John's Region.  Masters thesis, Memorial University of Newfoundland.

abstract: Absence, grievance, injury reporting, voluntary turnover and adverse events are mechanisms of voice that may be used by dissatisfied employees to voice their discontent. Of interest is whether the use of such mechanisms of voice is more prevalent during volatile periods of collective bargaining. This research study examined the use of these mechanisms of voice during periods of collective bargaining, for three unions who represent employees of the Eastern Health organization, St. John’s region. Once approvals were reached, Eastern Health human resources data sets were obtained. Collective bargaining information was gathered from the Newfoundland and Labrador Health Boards Association, for each of the unions under study, and time frames were created representing the start and end dates for each collective bargaining event, unique to the collective bargaining cycles of each union. Counts of events were gathered utilizing these time frames. Descriptive analysis was performed to assess the rates of each mechanism of voice. Negative binomial aggression analysis was performed to identify whether a significant relationship between the outcomes of interest and collective bargaining, could be identified. Results of the analysis were mixed, with some clear indications of statistical significance identified, indicating that there are times when certain voice mechanisms are utilized during particular collective bargaining events.


identifier: Martin, Heather <https://research.library.mun.ca/view/creator_az/Martin=3AHeather=3A=3A.html>   (2008) Multicultural counselling.  Masters thesis, Memorial University of Newfoundland.

title: Multicultural counselling

abstract: This thesis has no abstract.


identifier: Amarasinghe, Dilan <https://research.library.mun.ca/view/creator_az/Amarasinghe=3ADilan=3A=3A.html>   (2008) Multisensor based environment modelling and control applications for mobile robots.  Doctoral (PhD) thesis, Memorial University of Newfoundland.

abstract: For autonomous operations of mobile robots, three key functionalities are required: (a) knowledge of the structure of the world in which it operates, (b) ability to navigate to different positions autonomously using path planning algorithms, and (c) ability to precisely localize itself for the task execution. This thesis will address some of the issues related to the first and third requirements. The knowledge of the structure of the environment can be represented in several forms such as: 3D models, 2D wall plan, 2D plan of landmarks, and position and velocity of moving objects. Efficient navigation and obstacle avoidance methods are often aided by information about the structure of the environment in any of the above forms. At the end of each navigation task the robot has to execute an assigned task such as pick and place or park. In most cases these tasks require precise localization of the robot where the degree of precision required depends on the task specification. -- Taking these functions into consideration, this thesis addresses the issues of learning the structure of the world by constructing a visual landmark map of static landmarks. Additionally, it provides a solution to the precise localization problem of the mobile robot using a vision based hybrid controller. On the subject of the visual landmark map, the thesis describes a landmark position measurement system using an integrated laser-camera sensor. The traditional laser range finder can be used to detect landmarks that are direction invariant in the laser data. The processes that are dependent on the presence of directional invariant features such as navigation and simultaneous localization and mapping (SLAM) algorithms will fail to function in their absence. However, in many instances, it is possible to find a larger number of landmarks that are visually salient using computer vision. The calculation of depth to a visual feature is non-trivial due to the loss of depth information in the sensor model. While considering the drawbacks and limitations in laser and camera as a sensor, this thesis proposes a novel integrated sensor method to calculate position of the visual features. In addition, a comprehensive experimental analysis is presented to verify the sensor integration method for the EKF based SLAM algorithm. -- For effective operation of a robot's SLAM algorithm, it is necessary to identify dynamic objects in the environment. In order to achieve this objective a novel robust technique for detecting moving objects using a laser ranger mounted on a mobile robot is presented. After initial alignment of two consecutive laser scans, each laser reading is segmented and classified according to object type: stationary, non-stationary or indeterminate. Laser reading segments are then analyzed using an algorithm to maximally recover the moving objects. The proposed algorithm has the ability to recover all possible laser readings that belong to moving objects. The developed algorithm is verified using experimental results in which a walking person is detected by a moving robot. -- Finally, a novel vision-based hybrid controller for parking of mobile robots is proposed. Parking or docking is an essential behavioral unit for autonomous robots. The proposed hybrid controller is comprised of a discrete event controller to change the direction of travel and a pixel error driven proportional controller to generate motion commands to achieve the continuous motion. At the velocity control level, the robot is driven using a built-in PID control system. The feedback system uses image plane measurements in pixel units to perform image-based visual servoing (IBVS). The constraints imposed due to the nonholonomic nature of the robot and the limited field of view of the camera are taken into account in designing the IBVS-based controller. The controller continuously compares the current view of the parking station against the reference view until the desired parking condition is achieved. A comprehensive analysis is provided to prove the convergence of the proposed method. Once the proposed parking behaviour is invoked, the robot has the ability to start from any arbitrary position to achieve successful parking given that initially the parking station is in the robot's field of view. As the method is purely based on vision the hybrid controller does not require any position information (or localization) of the robot. Using a Pioneer 3AT robot, several experiments are carried out to validate the method. The experimental system has the ability to achieve the parking state and align laterally within 1 cm of the target pose.


identifier: Jackman House, Colleen <https://research.library.mun.ca/view/creator_az/Jackman_House=3AColleen=3A=3A.html>   (1998) Nurse educators' experiences of information technology.  Masters thesis, Memorial University of Newfoundland.

abstract: The purpose of this study was to explore nurse educators' experiences with information technology in an undergraduate nursing program. Findings from this study should prove to be informative to other nurse educators in terms of potential uses of information technology, the perceived advantages and disadvantages, and the concerns and perceptions of nurse educators as experienced in their work environments in using information technology. -- A phenomenological method was used for this study. Seven nurse educators participated in the study, four in administrative positions and three in teaching positions. Of the four administrative participants, three also had teaching responsibilities. The method of data collection included taped, unstructured interviews of approximately 30-60 minutes in duration. Using a guiding questionnaire, participants were encouraged to freely describe their experiences. Following the first round of interviews, five of the seven participants participated in a second round of interviews for further clarification and feedback. -- Van Manen's selective highlighting approach and the Ethnograph software program were used to analyze the data. From this analysis of the data, five common essential themes emerged from the participants' descriptions and interpretations of day to day encounters with information technology. These themes were further subclassified to fully capture a complete understanding of the themes. These themes included: -- (1) Communication: The open door to the world, (a) Accessibility, (b) Acceleration of information, (c) Professional Contact to Colleagues, (d) Professional Growth, (e) Building a Student Community through Technology; -- (2) Time: Ally and Rival: (a) Efficiency of Time, (b) Personal Control of Time, (c) Searching for Time, (d) Professional Time, (e) The Course of Time, -- (3) Need to Learn: Responsibility and Desire: (a) Individual Challenge, (b) Self Satisfaction, (c) Continuous Learning, (d) Daily Learning, (e) Recognition of the Need to Learn; -- (4) Technology: An Everyday Existence; -- (5) Cost: Is it Necessary? (a) Controlling Factor. -- The essence of the experience was nurse educators reacting to, and then adjusting to, the entry of information technology into their lives and followed by embracing it for its promises. -- The findings indicated that nurse educators had a variety of experiences with information technology. For most, this was a basic, functional, daily working experience. Although others went beyond this, none had fully embraced the technology in their lives. The participants' experience with information technology was mostly positive. The reported benefits from their experiences with information technology included speed, efficiency, access to information and colleagues and personal control in their working environment. The findings indicated some frustration and concern among the participants because of their perceived lack of information technology knowledge and skill. However, this recognition of lack of knowledge was often the motivation to learn. The participants adjusted to the presence of information technology in their lives through self directed and continual learning. -- These findings suggest a need for increased information technology education for nurse educators. Increased access to education would facilitate the educator's comfort with the use of information technology and assist them in keeping current with the fast paced changes in their working environment. More knowledge about information technology on the part of nurse educators would provide nurse educators with opportunities for greater input into the design, development and implementation of information technology in nursing education. As well, educators' increased use of information technology would promote collaboration and unity among nursing communities which will support the future of nursing education. The findings indicated a need for further research of this type to assist with the educators' adjustment and integration of information technology into the nursing education environment.


identifier: Das, Uttam K. <https://research.library.mun.ca/view/creator_az/Das=3AUttam_K=2E=3A=3A.html>   (2010) Mono- and trimetallic cobalt (II) and monometallic cobalth (III) amine-bis(phenolate) complexes: synthesis and structural properties.  Masters thesis, Memorial University of Newfoundland.

abstract: This thesis describes the syntheses and structures of a series of monometallic and two trimetallic cobalt(II) amine-bis(phenolate) complexes. The protonated tripodal tetradentate ligand precursors dimethylaminoethylamino-N,N-bis(2-methylene-4,6-di-tert-butylphenol), H₂[O₂NN']BuBuNMe2 and diethylaminoethylamino-N,N-bis(2-methylene-4,6-di-tert-amylphenol), H₂[O₂NN']AmAmNEt2 were reacted with cobaltous acetate tetrahydrate under varying conditions to afford both mono- and trimetallic species. X-ray crystallographic data of monometallic complexes [LCo[O₂NN']BuBuNMe2] (L = H₂O, CH₃OH, CH₃COCH₃, propylene oxide) showed that the Coᴵᴵ ion adopts a distorted trigonal bipyramidal coordination environment. In the absence of base and in the presence of excess cobaltous acetate, trimetallic complexes were isolated containing a central Coᴵᴵ in an octahedral environment coordinated to four CH₃OH and two bridging acetate ligands between two Co[O₂NN'] fragments with Coᴵᴵ in a trigonal bipyramidal setting. The mono- and trimetallic Coᴵᴵ complexes reported were also characterized by UV-vis spectroscopy, mass spectrometry, cyclic voltammetry and magnetic measurements. The Coᴵᴵ ions in these complexes are all high-spin and the trimetallic species show very weak antiferromagnetic behaviour when modeled as a linear isotropic trimer. Electrochemical studies reveal that the redox processes are most likely ligand based but a metal centered redox process is also possible. These works have recently been published: U. K. Das, J. Bobak, C. Fowler, S. E. Hann, C. F. Petten, L. N. Dawe, A. Decken, F. M. Kerton* and C. M. Kozak*, Dalton Trans., 2010, 39, 5462. -- This thesis also describes several oxidation attempts and a successful synthesis of a monometallic Coᴵᴵᴵ amine-bis(phenolate) complex. The oxidation reactions were carried out using a variety of oxidizing agents under both aerobic and anaerobic conditions. However, only silver nitrate gave promising results in yielding a monometallic COᴵᴵᴵ amine-bis(phenolate) complex under aerobic conditions. The monometallic species was characterized by ¹H NMR spectroscopy, mass spectrometry, and elemental analysis.


identifier: Webb, Michael P. K. <https://research.library.mun.ca/view/creator_az/Webb=3AMichael_P=2E_K=2E=3A=3A.html>   (2009) Metabolic and renal events in autosomal recessive bardet-biedl syndrome (BBS) and in first degree relatives with and without a BBS mutation.  Masters thesis, Memorial University of Newfoundland.

abstract: Bardet-Biedl Syndrome (BBS) is an autosomal recessive, genetically heterogenous, ciliopathic condition, characterized by dystrophic extremities, retinal dystrophy, obesity, renal abnormalities and male hypogonadism. It is possible that inheritance of a single BBS mutation may predispose to complex diseases such as obesity, hypertension and diabetes, particularly as these disorders occur frequently in BBS. To determine the incidence of metabolic and renal events 46 BBS cases, 96 heterozygote BBS mutation carriers, and 37 relatives without a BBS mutation were studied. Cases have been followed prospectively for up to 28 years, but relatives were assessed for the first time. -- The molecular basis of BBS was identified in all families in whom DNA was obtained: 9 mutations in 6 different BBS genes were discovered in 21 families. Body mass index in adult cases was 38 ± 12, in carriers 28 ± 6 and in non carriers 29 ± 3. Hypertension had developed in 72% of cases, in 54% of carriers and 49% of non carriers. Median time to onset of hypertension treatment was 34, 63 and 67 years respectively. Diabetes had developed in 50% of cases, 17% of carriers, and 24% of non carriers, with median time to diabetes being 43, 75 years and not achieved respectively. Stage 3 chronic kidney disease had developed in 47% of cases, 11% of carriers, 15% of non carriers, with median age to diagnosis being 58, 86 and 81 years respectively. -- Metabolic and renal events occurred frequently and at an early age in BBS. There were no significant differences in the risk of these events comparing carriers of a BBS mutation to non carriers. Inheritance of a BBS mutation does not predispose to obesity, diabetes, hypertension or renal impairment.


identifier: Ping, Xiaomeng <https://research.library.mun.ca/view/creator_az/Ping=3AXiaomeng=3A=3A.html>   (1998) Model-based enhancement of moving facial images.  Masters thesis, Memorial University of Newfoundland.

abstract: This thesis investigates the application of 2-D object modeling to image enhancement and restoration. In particular, the topic of the thesis is focused on the recovery of accurate facial images from noisy and blurred videos. An immediate application of this is the improvement of security videos for identifying people, but there are other contexts, such as film restoration, where views typically fixate on faces, and there is therefore reason to give special importance to improving that part of the image. -- When several video frames of a static scene are available, noise reduction can be accomplished simply by averaging all the frames. In practice, movement of the objects (or the camera) often prevents this. For example, a security video will probably provide a frame sequence of an individual in motion. Our strategy for enhancing facial images is to employ warping to eliminate these variations and to produce a uniform image sequence which will be involved in frame averaging. -- A 2-D face model which consists of a set of landmarks that describe the main facial feature points is used in the thesis. The face model is matched frame-by-frame to the sequence by a human operator. Given the landmarks, warping is performed to transform all the noisy and blurred frames to the same target frame. Then temporal averaging among the transformed resulting frames is applied to produce an enhanced result. Finally, spatial filtering for blur removal is optionally applied. -- To test the effectiveness of this strategy, some experiments are designed and performed. The results demonstrate that the supervised object-based temporal filtering strategy is simple and effective for enhancement of faces in videos.