identifier: Lew, Yuan-Yee <https://research.library.mun.ca/view/creator_az/Lew=3AYuan-Yee=3A=3A.html>   (1999) Infectivity of lymphoid cell-derived woodchuck hepatitis virus in an in vitro experimental system.  Masters thesis, Memorial University of Newfoundland.

abstract: Hepatitis B virus (HBV), the prototypic virus of the Hepadnaviridae family, induces chronic liver disease in approximately 5% of the global population and is a cause of incurable hepatocellular carcinoma (HCC). The woodchuck infected with woodchuck hepatitis virus (WHV) has been validated as the most valuable natural model of HBV infection, especially in the absence of practical in vitro systems for HBV investigations. Although HBV and WHV are primarily hepatotropic, they also infect the host lymphatic system. The significance of this extrahepatic infection in the establishment and progression of liver disease is unknown. Therefore, it would be highly advantageous to develop an in vitro cell culture system in order to investigate the interaction of hepadnavirus derived from lymphoid cells with host hepatocytes. This interaction should not be complicated by host immune surveillance directed against the virus. The main objectives of this study were to design and establish an in vitro experimental system for the propagation of WHV in hepatocytes and lymphoid cells and to investigate the ability of virus derived from lymphatic cells and serum to replicate in cultured woodchuck hepatocytes. In this work, both cultured woodchuck hepatocytes were shown to be susceptible to WHV infection and conditions for short-term maintenance of WHV in cultured lymphoid cells were established. In addition, highly sensitive methods for the detection of WHV genes, replicative forms of the genome and virus antigens in in vitro infected woodchuck cells were adopted and validated. -- The obtained results provide, for the first time, direct in vitro evidence that WHV released by naturally infected lymphoid cells is infectious to the host hepatocytes. The data indicate that lymphoid cells in the spleen constitute a site where infectious virus replicates with higher efficiency than in circulating lymphoid cells. Furthermore, it was shown that WHV originating from lymphoid cells could be passaged serially through cultured hepatocytes and remain infective to a virus- naive woodchuck. These experiments demonstrated that the virus continues to be biologically active in both in vitro and in vivo conditions. Finally, preliminary experiments indicated that replication of WHV in the hepatocyte culture system could be suppressed by the presence of antibodies to the N-terminal domain of the WHV large envelope protein or by a synthetic analogue derived from the putative WHV cell binding site 1 (CBS1). This finding suggests that WHV CBS1 plays an important role in virus-hepatocyte interaction. -- The woodchuck hepatocyte culture system developed in this work will serve as an important tool to study the early events in WHV infection and replication, the effects of the cellular microenvironment on infection and genetic variation of the virus, and for evaluation of novel anti-hepadnaviral agents.


identifier: Pardy, Shelley Ann <https://research.library.mun.ca/view/creator_az/Pardy=3AShelley_Ann=3A=3A.html>   (2000) Influence of balsam fir stand condition on the abundance and diversity of eastern hemlock looper, Lambdina fiscellaria fiscellaria (Guen.) (Lepidoptera: Geometridae) natural enemies.  Masters thesis, Memorial University of Newfoundland.

type: Thesis NonPeerReviewed

format: application/pdf application/pdf

abstract: To assess the impact of natural enemies on the distribution of eastern hemlock looper various balsam fir stands were examined at Black Pond, in central Newfoundland. In 1995, 1996 and 1997 insects were collected using Malaise traps suspended into the balsam fir canopy. First, natural enemy abundance was assessed based on balsam fir stand vigour. A non-continuous vigour gradient was established using three silvicultural methods (root pruning, thinning, and fertilizing) and control treatments. Natural enemy abundance, in general and known eastern hemlock looper natural enemy abundance and diversity was higher in balsam fir stands that were more vigourous. These more vigorous stands provided natural enemies with more alternate hosts or prey. Second, natural enemy abundance was estimated based on the time since thinning and vegetation diversity of balsam fir stands. Natural enemy presence in stands that were unthinned, thinned one year prior to the study and thinned 16 years prior to the study were examined. Natural enemy abundance, in general and known eastern hemlock looper natural enemy abundance and diversity was higher in balsam fir stands that had had vigour increased by thinning 16 years prior to the study. The diversity of vegetation in these stands was higher due to the length of time since thinning. This increased vegetation diversity resulted in more resources available to natural enemies: more alternative feeding sites for adults, more shelter and overwintering sites. Balsam fir stands that have low vigour and have little or no understory vegetation seem to provide looper with enemy free space.


identifier: Navarro, Jorge <https://research.library.mun.ca/view/creator_az/Navarro=3AJorge=3A=3A.html>   (1990) Influence of the natural food supply on the physiological energetics and biochemical storage cycles of the horse mussel, Modiolus modiolus (Linnaeus).  Doctoral (PhD) thesis, Memorial University of Newfoundland.

abstract: A population of Modiolus modiolus (horse mussel) inhabiting a sub-arctic environment in Logy Bay, Newfoundland, was studied for a period of two years. The main objective was to gain insight into the relationship between environmental factors (temperature and components of the seston) and the physiological response of this species. Measurements of the biochemical composition of the gonad, digestive gland and remaining tissue were made over the same period to support the physiological and environmental data. All the variables determined for the suspended particulate matter (seston), i.e. organic matter, chlorophyll a, organic carbon and nitrogen, lipid, carbohydrate and protein, and the number and volume of the particles, showed a clear seasonal pattern, with higher values during the spring and summer of each year of study. -- The highest values for energy acquisition (ingestion and absorption rates) by Modiolus modiolus coincided with the spring phytoplankton bloom occurring during April-May in Logy Bay, whereas energy expenditure (oxygen uptake and ammonia excretion rates) was greatest during the summer (July and August). The result was a clear seasonal fluctuation in the two physiological integrations, scope for growth (SFG) and net growth efficiency (K2), for which lower values were associated with a high metabolic rate, high temperature and low quality of the food supply. Conversely, higher values of SFG and K2 were associated with a low metabolic rate, low temperature and an energy-rich food supply provided by the phytoplankton bloom. -- The ash-ratio technique (Conover, 1966) was compared with other techniques for measuring absorption efficiency, and found to be a valid as well as a convenient method for use with horse mussels feeding on natural seston. -- Proximate biochemical analysis of the gonad, digestive gland and remaining tissue suggested that in Logy Bay Modiolus modiolus may compensate for the nutritive stress induced by poor food conditions for much of the year by prolonging the period over which energy reserves are accumulated, rather than by a reduction in fecundity or egg quality.


identifier: Tomblin, Lesley <https://research.library.mun.ca/view/creator_az/Tomblin=3ALesley=3A=3A.html>   (2002) Health trends in a Canadian police force : a cross-sectional and longitudinal study.  Masters thesis, Memorial University of Newfoundland.

abstract: Previous research suggests that members of the police force are at risk of certain health problems and exposed to a variety of occupational health hazards. To clarify the character of these health problems and their association with certain occupational hazards 414 police officers in one division of the Royal Canadian Mounted Police were assessed. Data examined included their overall health, the extent to which this changed over a five year period (1994-1998). The extent of their exposure to occupational hazards, and the association of the hazards with their health status. An expanded definition of health was used to measure four areas of health: morbidity, health indicators, subjective perceptions and functional capacity.   The results revealed that the members of this police division scored high on most measures of health and that there was little change between 1994 and 1998. However, the results suggest that members were at risk for developing cardiac disease and diabetes, and/or may suffer from chronic conditions, such as asthma and joint/back problems. The male police officers had higher levels of elevated cholesterol and obesity than the general male Newfoundland population. Some aspects of police work were found to be associated with poorer health. These findings are discussed with reference to other research on police health.


identifier: Goff, Alexandra <https://research.library.mun.ca/view/creator_az/Goff=3AAlexandra=3A=3A.html>   (1998) Information skills development for the college bound student.  Masters thesis, Memorial University of Newfoundland.

abstract: This project investigates the lack of information and computer related skills in the college student. It focuses on the types of skills required for post secondary students to succeed in their first year. The literature review explores the possible reasons why students have not acquired these skills. It also offers solutions to the problem. The main purpose of the project is the development of a skills continuum for use with first year college students. Key documents such as high school learning outcomes from feeder schools, first year university research assignments, and Sociology 1000, 2270, and History 1001 skills objectives are analyzed. The six stages of the Big Six Model© by Eisenberg and Berkowitz is used as a framework. The continuum will assist first year university instructors at the college level to design research projects that will foster critical thinking, independent learning, and problem solving.


identifier: Farrimond, Melanie <https://research.library.mun.ca/view/creator_az/Farrimond=3AMelanie=3A=3A.html>   (1997) Helene Cixous et la question de l'essentialisme.  Masters thesis, Memorial University of Newfoundland.

abstract: Le sujet qui nous intéresse ici est la question de l'essentialisme dans I'oeuvre de Hélène Cixous. Nous considérons la représentation de la différence dans trois pièces de théâtre, afin de défendre Cixous contre des accusations d’essentialisme. Les pièces de théâtre ici étudiées sont La prise de l'école de Madhubai. L’histoire terrible mais inachevée de Norodom Sihanouk, roi du Cambodge et L'Indiade ou l’Inde de leurs rêves. Dans le premier chapitre nous présentons Helene Cixous et la question de l’essentialisme, puis nous considérons la théorie de la déconstruction selon Jacques Derrida, une théorie qui influe beaucoup sur la démarche cixousienne. Dans le chapitre suivant nous résumons deux arguments qui représentent les deux côtés du débat sur l’essentialisme dans l'oeuvre cixousienne. Ensuite nous donnons notre prise de position dans le cadre de ces deux arguments. Le troisième chapitre esquisse l'entreprise théâtrale de Cixous. Les trois chapitres suivants sont consacrés a l’analyse des pièces de théâtre. Nous considérons surtout comment Cixous représente la différence sans recours aux oppositions binaires hiérarchisées. Un autre élément important dans l’analyse des pièces sera la représentation d'une économie alternative des relations sociales et sexuelles. Dans le chapitre final nous suggérons une réponse aux critiques traditionnelles, basée sur une considération du travail dramatique de Cixous, ainsi que sur sa théorie non-essentialiste de la différence.


identifier: Xiang, Jianguang <https://research.library.mun.ca/view/creator_az/Xiang=3AJianguang=3A=3A.html>   (2000) High resolution seismic imaging of the near-surface : comparison of energy sources.  Masters thesis, Memorial University of Newfoundland.

abstract: The shallow seismic reflection method plays an important role in helping to understand engineering, mining and environmental problems. For high resolution at shallow depth, choosing a seismic source to best meet the goals of the survey can be the most pivotal decision. This research is to study the characteristics of various portable and environmentally friendly seismic sources by comparing them to the source character of a shotgun source. The sources include two SIST (Swept Impact Seismic Technique) vibrators and a hammer. Data were collected in 1999 near St. John's, Newfoundland. They were compared with shotgun source in terms of radiated frequency spectrum and energy levels in an attempt to improve the resolving power. -- Compared to the shotgun data, the SIST vibrators provide lower frequency range but higher frequency bandwidth. Their weaker energy limits the effective penetration depth for imaging to 150 m. However, the SIST vibrator yields a higher resolution in stacked section than the shotgun. Based on its overall performance, the SIST vibrator shows a great deal of potential to be a viable, environmentally friendly seismic source with high resolution capability. This is especially suitable for environmental surveys, in which depths are usually not more than 200 m.


identifier: Sorial, Lilian Albert <https://research.library.mun.ca/view/creator_az/Sorial=3ALilian_Albert=3A=3A.html>   (1998) High school English teachers' perceptions and practice of critical thinking.  Masters thesis, Memorial University of Newfoundland.

abstract: The purpose of this study was to investigate high school English teachers' perception and practice of critical thinking skills in their classrooms in developing the critical thinking abilities of the senior high level students in Edmonton schools. The intent was to discover if high school English teachers realize the importance and the great significance of thinking critically, and if they modeL, practice and implement it through their teaching methods, to develop the students' critical thinking skills. -- The data concerning teachers' perceptions and beliefs on critical thinking were gathered through interviews conducted with eight English teachers for Grades 10, 11 and 12, in six different schools in Edmonton, Alberta. These interviews were recorded on audio-cassette, transcribed, and analyzed to reach an understanding and a conclusion. The data concerning teacher-student classroom verbal interaction was collected through in-class observation of one or two classes for each teacher either before or after the interviews. -- The findings of this study indicated that critical thinking continues to grow in popularity. Most of the high school English teachers realize and believe in the value of critical thinking as an academic competency that is crucial for the students' future success and progress. Most high school English teachers practice and model these skills to their students, and try to creatively develop the students' critical thinking skills. There are many opportunities in the high school English curriculum for educators to help develop critical thinking skills. The study revealed that the integration of critical thinking skills through the creative and effective use of various teaching methods is possible and essential. A significant finding was that high school English teachers can be highly influential in establishing a classroom environment that fosters critical thinking development.


identifier: Kavanagh, Janet S. L. <https://research.library.mun.ca/view/creator_az/Kavanagh=3AJanet_S=2E_L=2E=3A=3A.html>   (1997) How children cope with arthritis : the relationship of coping style to reported pain, and caregiver's influence.  Masters thesis, Memorial University of Newfoundland.

abstract: Children with juvenile arthritis (JA) are subject to chronic pain. The literature suggests that style of coping may influence amount of pain experienced, and that parents' beliefs may influence their child's choice of coping skills. Fifteen youth with JA and their primary caregivers participated in a semi-structured interview. Pain experience was measured with the Varni/Thompson Pediatric Pain Questionnaire, and an instrument to measure youth arthritis coping skills adapted from the Vanderbilt Pain Management Inventory was titled The Children's Arthritis Coping Inventory, which consisted of two sub-scales representing inner-directed and outer-directed coping. No relationship was found between youth reports of frequency of uses of inner and outer directed coping skills. There was a nonsignificant negative relationship between a child's use of outer-directed coping and reported pain (r = -0.33₁₄),  and a positive relationship between inner-directed coping and pain (r = 0.67₁₄,  p < .01). The use of proportionately more inner than outer directed coping was also significantly related to reported pain (r = 0.66₁₄, p < .01), while primary use of outer coping was not (r = -0.13₁₄). Parents did accurately estimate the magnitude of their child's experienced pain, and type of coping skill used. Hypotheses of parental beliefs influencing their child's coping skill use were not fully supported, as there were non-significant positive relationships between (a) parents estimates of the child's coping and (b) their opinion of what skills are best to use, with those their child did report (r = 0.12₁₄, r = 0.30₁₄ respectively). Trends suggested in these results were encouraging given the small sample size. Use of information on both adaptive (negatively related to pain) and maladaptive (positively related to pain) types of coping is suggested for application in the design of child chronic pain management programs.


identifier: Searle, Shawn S. <https://research.library.mun.ca/view/creator_az/Searle=3AShawn_S=2E=3A=3A.html>   (1999) Ice tank tests of a highly skewed propeller and a conventional ice-class propeller in four quadrants.  Masters thesis, Memorial University of Newfoundland.

abstract: Recent work to update regulations for ice-class ships has resulted in, amongst other things, new methods for dimensioning ice-class propellers. These methods have focussed on the more traditional propeller geometry and arrangements so that unconventional designs, such as highly skewed propeller blades and azimuthing propellers, have been excluded and must be treated as special cases. Also, elements of the design methods are based on limited empirical sources and as such need testing, verification, and perhaps modification. -- To address some of these issues, an experimental investigation was undertaken in the ice tank at the Institute for Marine Dynamics (IMD) using two different propeller models. A model of the propeller on the passenger ferry MV Caribou was tested specifically to investigate a highly skewed propeller under ice loading over a range of operating and ice conditions. The second propeller tested was a more conventional ice-class propeller from the R-Class icebreaker. The R-Class propeller model was tested over a wide range of operating conditions to give loading characteristics in all four quadrants. Such extreme loading might be experienced by fixed and controllable pitch propellers in off-design conditions, and by azimuthing propellers. The set of experiments involving the R-Class propeller were done over a range of ice strength conditions to examine nominal ice strength variation effects on the propeller loads. Based on the experimental results it is concluded that a highly skewed propeller behaves in a similar manner to that of a conventional ice-class propeller. In addition, the tests conducted in all four quadrants of propeller operation concluded propellers do not experience the greatest loads in quadrant 1, which is currently used as the design criterion. Rather, the largest loads are experienced in quadrants 2 and 3 and modifications to current design proposals should consider this detail.


identifier: White, Gregory Bruce <https://research.library.mun.ca/view/creator_az/White=3AGregory_Bruce=3A=3A.html>   (1997) Icing the puck : the origins, rise, and decline of Newfoundland senior hockey, 1896-1996.  Masters thesis, Memorial University of Newfoundland.

abstract: One hundred years ago, transplanted Canadians introduced the game of ice-hockey to Newfoundlanders. This thesis tracks the history of Newfoundland hockey within the context of the Island's socio-economic development. It identifies three broad, overlapping periods which characterize the sport's trajectory, namely: moral entrepreneurship, civic entrepreneurship, and corporate entrepreneurship. These stages are exemplified in three case studies of Newfoundland hockey playing communities — St. John's, Buchans, and Corner Brook. The infusion of colonial sporting tradition, the rational recreation movement, the involvement of women, amateur-professional controversies, civic promotion (boosterism), and the 'importing' of semi-professional players are also examined. The practice of 'importing' semi-professional players is particularly important given its contribution to the decline of community-based Senior hockey in the province. The analysis concludes by considering the growing tendency toward the corporatization of sport, and the implications of this trend for peripheral regions such as Newfoundland.


identifier: Knowling, William Ronald <https://research.library.mun.ca/view/creator_az/Knowling=3AWilliam_Ronald=3A=3A.html>   (1996) "Ignorant, dirty, and poor": the perception of tuberculosis in Newfoundland, 1908-1912.  Masters thesis, Memorial University of Newfoundland.

abstract: In 1908 the Association for the Prevention of Consumption was founded at a public meeting in St. John's, Newfoundland. This was the beginning of a systematic campaign by the volunteers of the APC often with the tacit support of members of the government, to create a government-funded anti-tuberculosis campaign in Newfoundland. Four years later this goal was achieved and the APC was disbanded. The APCs success was achieved because of a perceived crisis which expressed itself in high rates of tuberculosis and public apathy. Apathy linked the problems of tuberculosis to a larger perceived political crisis which could only be eliminated by finding ways to broaden the participation of the population in public debate. -- However, this interpretation of the problem of tuberculosis was much more easily accepted in St. John's than in the outports where a more lively debate over the nature of the political crisis looked to the economic rulers of the island in St. John's for a solution. The inability of St. John's politicians and the APC to deal with the economic questions raised by the anti-tuberculosis campaign helped to strengthen movements such as the FPU. Thus, as the APC spread its message of tuberculosis prevention it also was helping to inform Newfoundlanders of the contradictions in their society which held up St. John's merchants as the apex of respectability without making them responsible for the social consequences of their decisions.


identifier: Wang, Jianfang <https://research.library.mun.ca/view/creator_az/Wang=3AJianfang=3A=3A.html>   (1992) Raman studies of the cadmium chloride-alkali metal chlorides, lead chloride-cesium chloride and lithium carbonate-cesium carbonate systems.  Doctoral (PhD) thesis, Memorial University of Newfoundland.

abstract: Raman studies have been performed on following systems: CdCl₂/CsCl and CdCl₂/RbCl solids and melts; CdCl₂/KCl solids; PbCI₂/CsCl solids and melts; Li₂CO₃/Cs₂CO₃ solids: and Li₂CO₃/LiCl and Li₂CO₃/K₂CO₃ melts. The phase diagrams suggested by this work are in excellent agreement with the literature and the framework of the phase diagram for the Li₂CO₃/Cs₂CO₃ binary system has been reported for the first time. -- The Raman spectra of the compounds with known structures have been discussed in terms of factor group analysis. It has been possible to characterize the Raman spectra for the discrete octahedrally coordinated cadmium, CdCl⁴⁻₆  in Rb₄CdCl₆ and K₄CdCl₆ and the discrete tetrahedrally coordinated CdCl₄²⁻  in Cs₃CdCl₅ and the high temperature phase of Cs₂CdCl₄. The Raman studies of the solids have provided useful reference frequencies to assist the analysis of the Raman studies of the molten salts.  -- In the CdCl₂/CsCl binary system, a total of five compounds have been identified, three congruent: Cs₃CdCl₅, Cs₂CdCl₄, CsCdCl₃, and two incongruent: Cs₃Cd₂Cl₇ and CsCd₅Cl₁₁.  Cs₃CdCl₅ is isostructural with Cs₃CoCl₅ and thermodynamically stable only above 390°C.  Below 390°C  Cs₃CdCl₅  decomposes into a mixture of Cs₂CdCl₄  and CsCl, but the sample quenched to room temperature from the melt may give a metastable Cs₃CdCl₅.  Cs₂CdCl₄ has the K₂NiF₄  structure in the LTP (low temperature phase), but the salt undergoes a SPT (structural phase transition) at about 435°C to a β-K₂SO₄ type HTP (high temperature phase). The transition takes place over a temperature range from 435°C up to just below the melting point. At any temperature within this temperature range Raman bands for each of the separate phases may be detected simultaneously with relative intensities that are dependent of the temperature. Relative intensity measurements of bands characteristic of each cadmium coordination as a function of temperature indicated an equilibrium distribution. The enthalpy and entropy associated with the change of coordination were of the order of those usually observed on fusion. These large values are consistent with the major structural rearrangement from a network octahedral structure to a discrete tetrahedral coordination.  Cs₃Cd₂Cl₇  decomposes into CsCdC₃ and Cs₂CdCl₄ at temperatures above 450°C. Raman spectra suggest that the Cd atom has octahedral coordination within a network structure for solids Cs₃Cd₂Cl₇ and CsCd₅Cl₁₁.  CsCdCl₃ is hexagonal and there is no SPT from 25°C to the melting point. -- For the CdCl₂/RbCl and CdCl₂/KCl solid systems, six compounds: Rb₄CdCl₆, Rb₂CdCl₄,  Rb₃Cd₂Cl₇, Rb₄Cd₃Cl₁₀,  RbCdCl₃ and RbCd₅Cl₁₁ in the RbCl system; and two compounds: K₄CdCl₆ and KCdCl₃ in the KCl system have been identified. Both K₄CdCl₆ and Rb₄CdCl₆ contain discrete octahedral CdCl⁴⁻₆ species. The other compounds have network structures with CdCl₆ local units and chloride bridges. Unlike KCdCl₃  and CsCdCl₃, the anhydrous RbCdCl₃ gave no  intense peaks in the Cd-Cl stretching region of the Raman spectra and probably has an octahedral structure. When RbCdCl₃ was opened to the atmosphere it gave a different structure which is isostructural with NH₄CdCl₃ and KCdCl₃.  The discrete tetrahedral CdCl₄²⁻  structure is favored by larger and more polarization alkali cations and higher temperature. -- In the CdCl₂/CsCL, CdCl₂/RbCl and PbCl₂/CsCl melts, the tetrahedral structure was indicated. As the Cl⁻/M²⁺ ≥ 4 (M²⁺ = Cd²⁺ and Pb²⁺ ) the discrete tetrahedral MCl₄²⁻  species were the principle species present, while as Cl⁻/M²⁺ < 4 short-lived tetrahedral units with bridge structures were suggested. Exchange processes were too fast to permit detection of separate peaks for the discrete tetrahedron and the bridge species. Raman spectra indicate that the bond strength between Pb²⁺ and Cl⁻ ions is much weaker than that between Cd²⁺ and Cl⁻ ions. -- For the Li₂CO₃/Cs₂CO₃ system, only a congruent compound LiCsCO₃ has been identified and the compound forms eutectic mixtures with Li₂CO₃ or Cs₂CO₃. This compound LiCsCO₃ undergoes a SPT at about 435°C. The quenched sample from the melt to room temperature may give a metastable HTP which is stable for a long time at room temperature or even 77K. Unlike the SPT in Cs₂CdCl₄, there is no dynamic equilibrium between the HTP and the LTR but the transition is kinetically sluggish. Raman analysis indicates that the SPT in LiCsCO₃ is associated with the rotation of CO²⁻  in the primitive unit cell. The carbonate ion in molten alkali metal carbonates was found to be relatively unperturbed by the cations.


identifier: Dicks, Clarissa <https://research.library.mun.ca/view/creator_az/Dicks=3AClarissa=3A=3A.html>   (1999) Report of a post-secondary studies internship at Xwave Solutions, including a research report on the computer-based training (CBT) needs of Xwave Solutions employees.  Masters thesis, Memorial University of Newfoundland.

abstract: This report presents the results of a training needs analysis conducted for xwave solutions by a student intern completing graduate work in the M. ED. Post-Secondary Studies Program at Memorial University. The 12-week internship began January 18, 1999 and was designed to assess the Computer-Based Training (CBT) needs of all xwave solutions employees consisting primarily of Information Technology (IT) professionals. Results from this assessment showed that soft skills were in significantly higher demand than hard or technical skills. In addition, soft skills were significantly more important to complete in 1999. This report presents the research methodology and results, and recommendations for delivery of a new CBT program at xwave solutions. The research study was one component of the internship experience, and this report begins with a summary of the placement setting, internship goals and objectives, a description of activities, and the intern's personal reflections.


identifier: Steele, Kelly Dawn <https://research.library.mun.ca/view/creator_az/Steele=3AKelly_Dawn=3A=3A.html>   (1998) Report of an internship conducted at the Avalon East School Board including a research project entitled : A survey of counselors' views of and involvement in parenting skills training programs.  Masters thesis, Memorial University of Newfoundland.

abstract: This document reports on a ten-week internship completed at the Avalon East School Board in St. John's, Newfoundland in partial fulfillment of the requirements for the degree of Master of Education in School Psychology.   Part one of the document describes the setting, discusses the reasons for the choice of the placement, states the goals pursued, and reports on how these goals were met. Suggestions are offered to future interns considering a school board level placement. -- Part two reports on the required research component of the internship. Sixty Kindergarten to grade 12 counselors in an urban school board responded to a 25-point questionnaire surveying their involvement in parenting skills training programs and their views on the appropriateness of these programs. Questions were asked about the reasons for offering a program, the types of programs used, parent and school acceptance, delivery considerations and the actual or potential impact of such programs. The survey found that half of the counselors who responded offered training programs and that the STEP program was the one most frequently used. A significant number of counselors would recommend offering a program again.


identifier: Pelley, Wanda Joan <https://research.library.mun.ca/view/creator_az/Pelley=3AWanda_Joan=3A=3A.html>   (1997) Report of an internship conducted at the Memorial University Counselling Centre including a research project : a study of career indecision among selected first year university students.  Masters thesis, Memorial University of Newfoundland.

abstract: This document contains a report of a Master's level counselling internship conducted at the Memorial University of Newfoundland Counselling Centre in partial fulfilment of a Master's of Education in Educational Psychology. The internship was thirteen weeks in duration and ran from September 10, 1996 to December 6, 1996. -- Chapter One of this report discusses the choice of the internship alternative in the Educational Psychology program. Within this chapter, discussion focuses upon the rationale, a description of the setting, services available at the Centre, internship goals, supervisory activities and responsibilities. Chapter Two includes a comprehensive summary and discussion of activities that the intern participated in during the internship placement. -- Chapter Three deals with the required research component of the internship. It outlines the research including: background, purpose, significance, literature review, research questions, methodology, results, limitations, and discusses the findings of this research component. -- The purpose of the study was to determine career decision making tendencies among first year students at Memorial. Using the Career Decision Scale (Osipow, 1980), the researcher endeavoured to determine if significance exists between gender and career decision making, between geographic background and career decision making, as well as any interactional effect between gender and geographic background on career decision making. The Career Decision Scale (CDS) has two subscales: the Career Certainty Scale and the Career Indecision Scale. -- The results of the study indicate that no significant main effects exist for gender or geographic background on either the Certainty Scale or Indecision Scale. However, an interactional effect was found to exist between two groups on the Certainty Scale: rural- males and urban-females. No interactional effects exist on the Indecision Scale. -- Finally, Chapter Four summarizes the recommendations and concludes by briefly reviewing the actual internship placement at the Counselling Centre.


identifier: Scott, Carolyn Wheeler <https://research.library.mun.ca/view/creator_az/Scott=3ACarolyn_Wheeler=3A=3A.html>   (1998) Report of graduate internship and evaluation of psychology services at the work skills evaluation program.  Masters thesis, Memorial University of Newfoundland.

abstract: This is a report of an eight-week graduate internship with the psychological services group of the Work Skills Evaluation Program (WSEP) at the General Hospital. WSEP provides vocational assessment services primarily for injured workers referred by the Worker's Compensation Commission (WCC). Part One describes the internship setting, outlines assessment activities, discusses observations and impressions, and suggests improvements to assessment policy and practice. Part Two presents an evaluation of the psychology services at WSEP, conducted to find out whether clients felt the services helped them achieve vocational rehabilitation. Interview data from a random sample of clients referred to WSEP in 1993 were analysed using a qualitative research approach. While the majority of clients abandoned rehabilitation, most felt the assessments performed by psychologists at WSEP accurately predicted their academic abilities and career interests. Decisions to quit rehabilitation or to pursue it at a slower pace were closely associated with other factors such as pain management, age, and psychological distress. The findings suggest that success in rehabilitation can be enhanced by changes in the individual through skills training, assertiveness training, and through environmental adjustments that may eliminate or reduce barriers to specific training and employment. Recommendations are made for ongoing assessments and interventions to better support injured workers in training and employment, and for research aimed at improving assessment instruments and policies.


identifier: Dunphy, Gerard Michael <https://research.library.mun.ca/view/creator_az/Dunphy=3AGerard_Michael=3A=3A.html>   (1999) Requirements analysis of a multimedia patient information system in telemedicine applications.  Masters thesis, Memorial University of Newfoundland.

abstract: The medical patient record still consists for the most part of paper and film based records. Diagnostic information obtained from a variety of imaging modalities, text records, laboratory results, and transcripts of audio dictations make up a typical patient record. These records are then collected and stored in a central record database, filed by the patient's name or medical identification number. -- This method of access leaves much to be desired. The record has a considerable chance of being lost or mislaid as it is handled by medical personnel. Requests for the record from a practitioner with an interest in the patient can mean that the record is inaccessible for a period of days. Considerable time and expense is expended in an effort to store and organize patient records, particularly at a large institution such as a hospital. In the meantime, records generated at a different institution may not be accessible at all. This is particularly significant when dealing with applications in telemedicine, when the practitioner with a requirement to access the patient record may be geographically remote from the institution in which the record is stored. -- Several computerized systems have been developed to store some or all of this record in a digital format. In particular, much emphasis has been placed on the storage of text information and on the storage of images. In most cases, these databases exist alone and without the capability of communicating with each other. -- The ubiquitous presence of the World Wide Web as a medium for the dissemination of information is a recent occurrence, but it is also a growing phenomenon. Web access is commonplace, especially in a professional setting. -- Given these factors, it was decided to investigate the feasibility of addressing the shortcomings of traditional medical record storage systems through the use of a Web based multimedia patient information system in a client-server network topology. A prototype system was developed and used to perform testing. User testing with medical personnel was conducted to assist in establishing the parameters of the design of a system of this nature. The system was also used to measure delay in downloading information from a central database. -- It was found that a high degree of acceptance exists for a system of this nature. In order for a solution of this type to be practical, low download time, multimedia file access (audio, image, and video as well as text), and conferencing would be requirements. Access using a high speed access technology such as ADSL or possibly ISDN would be required in order to provide reasonable access time to the central database.


identifier: Rice, Corina D. <https://research.library.mun.ca/view/creator_az/Rice=3ACorina_D=2E=3A=3A.html>   (1999) Restricted feeding, spermatogenesis and growth in Arctic charr, Salvelinus alpinus : the identification of two possible gametogenic control points.  Masters thesis, Memorial University of Newfoundland.

abstract: Experiments were conducted to determine if food restriction during certain critical critical seasons could reduce the incidence of early maturity in Arctic charr (Salvelinus alpinus L.) and to describe the stages of spermatogenesis associated with those critical periods. -- A seven-stage description of the spermatogenic process is presented along with a time series of the progression through the various stages. Spermatogenesis in Arctic charr is initiated in autumn under decreasing photoperiods and temperatures, approximately one year before spawning. The onset is characterized by mitotic proliferation of spermatogonia before changes in GSI are detectable. The spermatogenic cycle is highly asynchronous within the testis of a single fish, and between individuals of a population. Two critical points in the spermatogenic cycle that may be susceptible to nutritional control were identified. The first occurs in autumn, affecting the advancement of testes from the pre-spermatogonial stage to the immature stages; the second in spring, when spermatogonial cysts form and a switch from spermatogonial proliferation to spermatocyte formation ensues. Reduced feeding temporarily interrupts mitotic division of germ cells during the early stages of gonadal development. -- The Arctic charr, aged 1+ in autumn, were subjected to two different restricted feeding regimes. Experiment I, consisting of alternating two week periods of food deprivation with excess feeding (2:2, 14 week duration), at any time from November to June did not reduce the proportions of male fish showing definite signs of maturity by July compared to a control group. In Experiment EC, fish subjected to 6-week periods of continuous starvation (6:0) from September to April exhibited temporary reductions in gonadal activity. By July, final maturation proportions of starved fish were depressed relative to the control group. Restricted feeding had no effect on the degree of gonadal investment in terms of gonadosomatic index (GSI). No females matured during either experiment. -- Temporal changes in fish growth were monitored over the course of both studies by retrospective examination of tagged individuals. After periods of food deprivation, resumption of regular feeding resulted in fish displaying hyperphagic feeding activity and compensatory growth. Growth differentials were most pronounced in fish starved during periods of higher temperature, especially during the time of rapid temperature increase in May/June, ha Experiment I, maturing males continued to grow and increase body condition throughout the winter months, while growth of their immature counterparts remained low until spring. Growth rates of maturing fish were consistently higher than immature fish. In Experiment II, growth patterns of maturing and immature males were similar, however, condition factors of maturing males were slightly above those of immature fish. -- This study lends support to the theory that there are two critical periods in the maturation cycle of salmonids. Food restriction alone, however, is not an effective method of suppressing early maturity in this species owing to the long and flexible duration of the identified critical decision periods.


identifier: Parsons, Treena A. <https://research.library.mun.ca/view/creator_az/Parsons=3ATreena_A=2E=3A=3A.html>   (2000) Retaining international students : identifying the needs of international students attending Memorial University of Newfoundland.  Masters thesis, Memorial University of Newfoundland.

abstract: International students have many challenges to face when studying abroad. They have to be prepared to deal with cultural, academic, and social differences. When recruiting international students, Canadian universities need to be cognizant of these challenges and the needs of students. Institutions that are aware of the needs of international students can provide the appropriate programs and services and thus increase the universities’ abilities to retain them. -- This study assessed the pre-entry and entry needs of undergraduate and graduate international students who were first time entrants to Memorial University of Newfoundland during the fall semester of 1997 and the winter semester of 1998. The aim of this research was to identify the needs of international students and to make recommendations to Memorial University and more specifically, the Office of Student Affairs and Services as to how these needs could be met. -- The sixty-five item questionnaire collected information concerning needs in the following categories: academic, social/cultural, housing, finances, and recruitment and retention. The focus of this study was to explore the similarities and differences of the needs of undergraduate and graduate international students. -- A total of sixty-five questionnaires were available for data analysis. The most notable findings indicated that undergraduate and graduate international students have similar needs. Both groups would like to have information about Canada, and the university  they will be attending before they leave to study abroad. Once they arrive in Canada, graduate students rely on their supervisors and respective faculties to assist in their adjustment to their new environment, whereas undergraduate international students tend to rely on friends and family for support and assistance. Other similar needs included (a) being met at the airport, (b) attending an orientation session, (c) participating in a peer-pairing program and a host family program, (d) assistance with locating accommodations, (e) assignment of an academic advisor, (0 academic assistance specifically with written and oral communication, (g) the lack of work opportunities on campus. The majority of students came to Memorial University because of recommendations from family and friends, and they believed that prospective international Memorial University students should be provided with information concerning the culture of Newfoundland, the university, and the weather conditions.


identifier: Siddique, Abu-Baker M. <https://research.library.mun.ca/view/creator_az/Siddique=3AAbu-Baker_M=2E=3A=3A.html>   (1991) Role of lipid bodies in N2-fixing root nodules of peanut (Arachis hypogaea L.).  Doctoral (PhD) thesis, Memorial University of Newfoundland.

abstract: The peanut plant (Arachis hypogaea L.) , unlike other legumes, can sustain nitrogen fixation when prolonged periods of darkness or detoping curtail the supply of photosynthate to the nodule. This ability to withstand photosynthate stress is attributed to the presence of lipid bodies in infected nodule cells. In both dark-treated and detopped plants, the lipid bodies show a gradual decrease in numbers, which suggests their utilization as a source of energy and carbon for nitrogen fixation. Lipolytic activity can be localized in the lipid bodies and the existence of the B-oxidation pathway and glyoxylate cycle is shown by the release of ¹⁴CO₂ from lino-leoyl Coenzyme A by the nodule homogenate. In addition, the biochemical assay and cytochemical localization of catalase and malate synthase also confirm lipid catabolism in the nodule. -- Catalase from cultured Bradyrhizobium sp. 32H1, root nodules and seeds of peanut is active in a wide range of pH, having two pH optima. The enzyme activity is associated with both the bacteroids and the host cytosol. In isolated nodule bacteroids the presence of catalase is restricted to the bacteroid surface only, whereas in the rhizobia grown in culture, the activity remains inside the cells. Triazole-sensitive DAB reaction revealed microbodies in the host cytoplasm, often lying close to the peribacteroid membrane. DAB-positive dense bodies are also found on the bacteroid surface at the host-symbiont interface. Ineffective nodules of peanut induced by two nod+fix+ strains of Bradyrhizobium sp. were compared with the ones induced by nod+fix+ strain NC92. Both fix strains (639 and 7091) induce small nodules lacking leghemoglobin and nitrogen-fixing activity. Ultrastructural observations revealed that the nodules of 639 have an enlarged peribacteroid space and lack persistence of nodule function. The 7091-induced nodules showed an impediment to bacteroid release and differentiation. In the ineffective nodules, larger numbers of lipid bodies were found to accumulate, compared to the effective NC92 nodules. The large lipid accumulation in the absence of nitrogen fixation serves as further evidence to confirm that the nodule lipid bodies are utilized as a supplementary source of carbon and energy for nitrogen fixation in peanut root nodules.


identifier: Chen, Junyi <https://research.library.mun.ca/view/creator_az/Chen=3AJunyi=3A=3A.html>   (1991) Rotational and vibrational spectroscopy of sulphuryl chloride, sulphuryl fluoride and dimethyl sulphone.  Doctoral (PhD) thesis, Memorial University of Newfoundland.

abstract: The rotational and vibrational spectra of sulphuryl chloride, sulphuryl fluoride and dimethyl sulphone have been extensively studied. The molecular structures of all three molecules and the harmonic force fields of the first two molecules have been derived from the experimental data. Some nuclear quadrupole interactions, Fermi resonance and Coriolis interactions of these molecules have also been investigated. -- (1) Cl₂SO₂: The microwave spectra of nine isotopic species of sulphuryl chloride, namely ³⁵Cl₂³²S¹⁶O₂, ³⁵Cl³⁷Cl³²S¹⁶O₂, ³⁵Cl₂³²S¹⁸O₂, ³⁵Cl³⁷Cl³²S¹⁸O₂, ³⁵Cl₂³⁴S¹⁸O₂, ³⁵Cl³⁷Cl³⁴S¹⁸O₂, 37Cl₂³²S¹⁶O₂, ³⁵Cl₂³⁴S¹⁶O₂ and ³⁵Cl³⁷Cl³⁴S¹⁶O₂, were observed in the ground state over the frequency range from 12000MHz to 84000MHz. The rotational constants and quartic centrifugal distortion constants have been calculated from these spectra. The effective, substitution and scaled structures of this molecule were evaluated from the rotational constants. The nuclear quadrupole hyperfine structures of some transitions were measured. The nuclear quadrupole splittings of ³⁵Cl₂³²S¹⁶O₂ transitions have been analyzed to yield the nuclear quadrupole coupling constants of ³⁵Cl as: xaa =-33.25MHz, xbb =-6.97MHz, xcc = 40.22MHz and n = 1.42. The Raman spectra of ³⁵Cl₂³²S¹⁶O₂, ³⁵Cl₂³²S¹⁸O₂ and ³⁵Cl₂³⁴S¹⁸O₂ have also been observed in both the liquid and gas phases. A Fermi resonance between the v1 fundamental and the first overtone of the v₈ mode has been analyzed. A harmonic force field with thirteen force constants has been determined from the quartic centrifugal distortion constants and the vibrational frequencies. The harmonic force field has been used to obtain the average structure for this molecule. The ground state average structural parameters of ³⁵Cl₂³²S¹⁶O₂ are: rSO = 1.41347(11)4, rSCI = 2.01124(10)4, angleOSO = 123.129(15)°, angleCISCI = 100.126(7)°. -- (2) F₂SO₂: The microwave spectra of five isotopic species: F₂³²S¹⁶O₂, F₂³²S¹⁸O₂, F₂³²S¹⁶O¹⁸O, F₂³⁴S¹⁶O₂ and F₂³⁴S¹⁸O₂ have been measured in the ground state from 6000 to 120000MHz. A large number of satellite series were also investigated for F₂³²S¹⁶O₂ and F₂³²S¹⁸O₂ and have been assigned to five vibrationally excited state transitions ( v₃ = 1, v₄ = 1, v₅ = 1, v₇ = 1 and v₉ = 1) of F₂³²S¹⁶O₂ and four vibrationally excited state transitions ( v₄ = 1, v₅ = 1, v₇ = 1 and v₉ = 1 ) of F₂³²S¹⁸O₂. The spectra have been analyzed to yield values for the rotational constants and quartic centrifugal distortion constants for both the ground and excited states. The sextic centrifugal distortion constants of the F₂³²S¹⁸O₂ species have also been determined. An effective geometry has been obtained from the ground state rotational constants. The Coriolis interaction constant [symbol] was derived as 0.264 and 0.24 for F₂³²S¹⁶O₂ and F₂³²S¹⁸O₂ respectively. A complete harmonic force field, with seventeen force constants, has been determined from the quartic distortion constants and vibrational frequencies. The harmonic force constants have been used to calculate the average molecular structure of F₂³²S¹⁶O₂ in the ground state. The average structural parameters are: rso = 1.40176(13)4, rSF = 1.53608(16)A, angleoso = 124.907(20)°, angleFSF = 95/84(13)°. -- (3) (CH₃)₂SO₂ The microwave spectra of eight isotopic species, (¹²CH₃)₂³²S¹⁶O₂, (¹³CD₃)₂³²S¹⁶O₂, (¹²CH₃)₂³²S¹⁶O¹⁸O, (¹²CH₃)(¹²CH₂D)³²S¹⁶O₂(I), (¹³CH₃)₂³²S¹⁶O₂, (¹²CH₃)₂³⁴S¹⁶O₂, (¹²CH₃)(¹³CH₃)³²S¹⁶O₂, (¹²CH₃)(¹²CH₂D)³²S¹⁶O₂(II), were observed in the ground state over the frequency range from 40000 to 85000MHz. The rotational constants and quartic centrifugal distortion constants of the eight species have been derived from the experimental data. Effective and substitution structures have been obtained using the ground state rotational constants. The substitution structural parameters of (¹³CH₃)₂³²S¹⁶O₂ are: -- rso = I.4343(23)4, rsc = 1.7728(28)4, rCH(I) = 1.0839(9)4, rCH(lI) = 1.0858(2)4, angleoso = 120.14(19)°, angleCSC = 103.61(16)°, angleSCH(I) = 105.59(25)°, angleSCH(II) = 109.51(19)°, angleH(l)C(II) = 110.38(11)°, angleH(II)CH(II) = 111.61(5)°.


identifier: Samson, Ward William <https://research.library.mun.ca/view/creator_az/Samson=3AWard_William=3A=3A.html>   (1997) School closure and consolidation in two small rural communities in Newfoundland.  Masters thesis, Memorial University of Newfoundland.

abstract: The focus of this thesis is the process and turmoil that accompanies the closure of small schools in rural communities. The specific context is rural Newfoundland and Labrador. The purpose is to tell the stories of how the people of two communities attempted to fight and resist the efforts of the local school board to close and/or consolidate their schools. Using a case study methodology, the thesis traces the sequence of events starting with the initial rumours of an impending closure. For each of the communities in the study, the thesis describes the strategies the people used in their attempts to resist the school board's intentions. In the end both communities lost their battle and their small schools were closed. -- Although both community and school board sources were consulted for this thesis, the primary intention has been to tell the story of this struggle from the communities' point of view. Seldom in the history of school closure and consolidation have the views, arguments and pain caused by a closure battle survived and been recorded. The reason for this as Tyack (1974) has pointed out is that history is always written by the victors. Those defeated, generally, do not get to tell their story. Although there have been hundreds of closure battles in Newfoundland and Labrador and thousands in North America, one would be hard pressed to find sympathetic accounts of the struggle from a community's point of view. -- Given this set of circumstances, this thesis makes a significant contribution to not only our knowledge of an important rural education issue here in Newfoundland and Labrador, but in all contexts where there are or have been small community schools under siege.


identifier: Wang, Nam-Chiang <https://research.library.mun.ca/view/creator_az/Wang=3ANam-Chiang=3A=3A.html>   (1975) Reactions of some metal derivatives of pyrrole.  Doctoral (PhD) thesis, Memorial University of Newfoundland.

abstract: Reaction of pynrcrolylmagnesium bromide with iodomethane in diethyl ether  gave only C-substituted pyrroles. When the reaction was carried out in the presence of more than two parts of hexamethylphosphoramide (HMPA) N-methylpyrrole was also obtained. The ratio of N-substituted pyrrole to C-substituted pyrroles increased with increasing amount of the HMPA added and if the HMPX was used as solvent, the product was almost exclusively N-methylpyrrole. It was believed that in the presence of an excess of this strongly basic complexing  agent, the bond between the pyrrolyl group and the magnesyl group became dissociated. The reactions of pyrrolylmagnesium bromide with derivatives of carboxylic acids were believed to involve two types of Lewis acid and Lewis base reaction: (a) the reaction of the carbonyl carbon atom with  the pyrrolyl group of the undissociated Grignard reagent, (b) the reaction of the carbonyl oxygen atom  with the magnesyl group of the) Grignard reagent.  The carbonyl group of such compounds as acetyl chloride, acetic anhydride, phosgene and carbon dioxide where the electcrophilicity of the carbonyl carbon atom was greatly enhanced by the electron-withdrawing group preferred the first type of Lewis acid and Lewis base reaction. The carbonyl group of such compounds as diethyl carbonate and phenyl isocyanate where the nucleophilicity of the carbonyl oxygen atom was enhanced by electron-donating groups preferred the second type of Lewis acid and Lewis base reaction. The first type of reaction always gives C-substituted products while the second type of reaction always gives N-substituted products. The reaction of 2-methylpyrrolylmagnesium bromide with ethyl chloroformate with the Grignard reagent from ethyl 2-pyrrolecarboxylate gave only ethyl diethyl 1,2-pyrroledicarboxylate.  The reaction, of pyrrolyllithium with diethyl carbonate in 1,4-dioxane at room temperature gave almost exclusively ethyl-pyrrolecarboxylate.  At the boiling temperature of 1,4-dioxarve, the ethyl 1-pyrrolecarboxylate was converted slowly to the thermodynamically more stable products, ethyl 2-pyrrolecarboxylate and 1,2-dipyrrolyl ketone.


identifier: Peddle, Janice M. <https://research.library.mun.ca/view/creator_az/Peddle=3AJanice_M=2E=3A=3A.html>   (1999) Reducing retroactive interference through recoding.  Masters thesis, Memorial University of Newfoundland.

abstract: The purpose of the present study was to examine the effects of a recoding cue on retroactive interference experienced by grade 2 and grade 4 children. Children in the control condition learned one list of foods, while children in the experimental conditions learned two lists of foods. All children were asked to recall the first (or only) list learned 24 hours later in a free recall manner. Children in the retroactive interference/recoding conditions were informed of a perceptual recoding cue (that all the foods in the second list were green in colour) either after acquisition or just prior to the long-term retention test. The results indicated that  1) children in the recoding conditions experienced less retroactive interference than uninformed children  2) both the younger and older children benefitted from the recoding cue regardless of time of instruction, and  3) the effects of the recoding cue were located primarily at storage. The perceptual recoding cue allowed the children to reorganize their memories and maintain them as two distinct sets of information.


identifier: White, Heather <https://research.library.mun.ca/view/creator_az/White=3AHeather=3A=3A.html>   (1999) Reflections on university learning : one group's experience.  Masters thesis, Memorial University of Newfoundland.

abstract: The purpose of this qualitative inquiry was to look closely at the teaching-learning dynamics during an undergraduate group's learning experience. The researcher, as part of a Graduate Teaching Program, participated in an undergraduate course in Educational Psychology as both an observer and a teaching assistant. This research grows out of the increasing recognition of the importance of lifelong learning in the information age and was directed by the goal of bringing student voices into the androgogical dialogue. As the Heuristic methodology shaped this research study, the researcher focused on understanding and articulating the experiences of the participants of this learning experience. The research participants included a group of twenty-six learners in a third year Educational Psychology course, the professor of the course and three other graduate students who acted as third party observers. Survey, interview and observational data were interpreted in light of observations made by third party reactions to a video tape of a typical classroom experience. Data from diverse sources and times enabled the researcher to identify themes through the use of triangulation across time, perspective and collection method. The researcher noted a learner preference for group learning activities, a disinterest in lecturing and a passive learning orientation in learners. The student perception of a lack of change and openness within the university environment points to a need for further exploration of contemporary university teaching practice. The researcher highlights the praxis learning orientation observed in this university course and shares her insight into the teaching- learning experience(s) under investigation. The researcher discusses the implications of these findings for university teaching, informal learning settings and the current training and development demand for application oriented learning.


identifier: Clarke, Theresa <https://research.library.mun.ca/view/creator_az/Clarke=3ATheresa=3A=3A.html>   (2000) Registered nurses as adult learners.  Masters thesis, Memorial University of Newfoundland.

title: Registered nurses as adult learners

abstract: The field of adult education is relatively new so we are still striving to build a broad theoretical base from which to base our practice. My first paper looks at theory development in the field to date and how adult educators have used this theory in order to develop programs that will meet the needs of their diverse student population. -- Some of the salient characteristics of the student population have been listed in order that the diversity of the population can be recognized. I decided to take one of the cohorts as the focus on in my second paper. This paper analyzes women in education and the factors that have contributed to their numerical growth in our post secondary systems. -- The third paper focuses on primary research that was conducted by me in 1994. Twenty-six registered nurses responded to a survey conducted in a small hospital in St. John's. The purpose of the survey was to identify motivating factors and impediments that would affect a registered nurse's decision to participate in continuing education programs after she had graduated from a diploma program in nursing.


identifier: Buckle, Joy Ann <https://research.library.mun.ca/view/creator_az/Buckle=3AJoy_Ann=3A=3A.html>   (1999) Regulation of parathyroid-hormone related peptide in a squamous cervical carcinoma cell line, CaSki.  Masters thesis, Memorial University of Newfoundland.

abstract: PTHrP is produced by primary and established cervicalkeratinocytes. However, the factors involved in the expression and regulation of PTHrP in malignant cervical cells has not been characterized. The ectocervtcal epithelium is normally under the control of the sex steroid hormones, estrogen and progesterone. Here I report the effects of known regulators of PTHrP (EGF, dexamethasone and 1,25-dihydroxyvitamin D3) as well as the effects of potential tissue-specific regulators, 17β-estradiol and progesterone, on PTHrP expression and secretion in the human papillomavirus type 16 (HPV-16) infected squamous cervical cancer cell line, CaSki, using Northern analysis and radioimmunoassay. -- A dose-dependent increase in PTHrP mRNA levels was observed in response to EGF in the absence of FCS, with maximal stimulation (normalized to cyclophilin) at 20 ng/mL and a 3-fold increase in immunoreactive (i) PTHrP at 24 hours. 17β-Estradiol produced a dose- dependent increase in PTHrP mRNA expression with maximal stimulation observed at 10⁻⁸ M At this concentration, 17β-estradioi produced a 2.5-fold increase in iPTHrP at 24 hours. Progesterone did not produce a significant dose-dependent change in PTHrP mRNA expression. Nevertheless, the effects of progesterone were examined in time course studies at a concentrationof 10⁻⁸ M. A dose-dependentinhibitionof PTHrP mRNA expression was observed for both dexamethasone and 1,25-dihydroxyvitamin D₃, with maximal effects at 10⁻⁸ M.   Both produced a 50% reduction in iPTHrP relative to control values at 24 hours in the presence of FCS. -- Time course studies were subsequently performed using those doses which showed maximal effects in dose-response experiments. An early increase in PTHrP mRNA expression (relative to control) was observed in response to EGF with a peak of 4.5-fold at 2 hours. Both dexamethasoneand 1,25-dihydroxyvitaminD₃ producedonly slight increases in PTHrP mRNA expression, relative to the time zero (basal), which were maximal at 2 and 4 hours, respectively. However, 24 hours after stimulation, a 50% inhibition of PTHrP mRNA expression was observed (relative to control) for both hormones. Stimulation with progesterone resulted in a 2-fold increase in PTHrP mRNA expression with peak effects at 2 hours. Treatment of the cells with 17β-estradiol produced a 3.5-fold increase in PTHrP mRNA expression with peak effects at 6 hours. -- In HPV-16 established human ectocervical cells (HEC-16), it had been previously demonstrated that known regulators as well as tissue-specific regulators (progesterone and 17β-estradiol) modified PTHrP production. The pattern of expression of PTHrP in CaSki cervical carcinoma cells was similar to that observed in HEC-16 cells. However, the level of iPTHrP secretion was significantly less in CaSki cells.  This suggests a dysregulation of PTHrP in malignant cervical cells. The response to the tissue-specificsex steroid hormones, progesterone and 17β-estradiol, suggests an interaction with PTHrP and thus a possible regulatory role for PTHrP in the control of cellularproliferationand differentiationof cervical tissue. These results suggest that this model of cervical carcinoma could be used to assess the effects of other potential modulatory factors such as selective estrogen agonists or progesterone antagonists.


identifier: Sun, Qi <https://research.library.mun.ca/view/creator_az/Sun=3AQi=3A=3A.html>   (1996) Relationship between human genital epithelial cells, squamous metaplasia and HPV16-mediated oncogenesis.  Doctoral (PhD) thesis, Memorial University of Newfoundland.

abstract: The stratified squamous epithelium (SSE; for abbreviations, see lists on page xviii) in the transformation zone (TZ) of human uterine cervix is metaplastic in nature, and the TZ is the most common site for carcinomas related to infection by human papillomavirus type 16 (HPV 16). This study attempted to elucidate the mechanisms for the high incidence of HPV16-mediated malignancy inthemetaplastic SSE. -- In vitro cultured normal human keratinocytes (HKC) from foreskin (HFK) and ectocervix (HEC), and epithelial cells from human endocervix (HEN) were reconstructed into epithelia using an in vivo nude mice model. While HKC from both HFK and HEC formed well-differentiated SSE, HEN formed an epithelium displaying morphological features of immature metaplastic SSE, which was substantiated by the expression patterns of cytokeratins (CKs). These results established the endocervical origin of metaplastic SSE in the TZ. -- HEN immortalized by HPV16 genomic DNA (HEN16) formed highly dysplastic lesions, whereas lesions formed by the immortalized HKC (HKC16) displayed low grade dysplastic changes in the same in vivo system. The CK expression patterns in lesions from both types of cells supported the pathological features. Northern and Southern blot analyses for the immortalized cells cultured in vitro failed to reveal any significant differences between the HPV16-immortalized cells in the viral DNA status, the expression of the viral E7 and E5 oncogenes, and the expression of the cellular protooncogenes c-myc and H-ras. Therefore, E7 expression in the in vivo implants from the immortalized cells was examined. In situ hybridization assays showed that, while E7 expression was limited to the basal cells of the HKC16 lesions, E7 was expressed throughout the HEN16 lesion. The compartmentalized E7 expression in the HKC16 lesions was not due to a defunct transcription mechanism, since the cells that did not express E7 did transcribe CK1. These results suggested that HKC, but not HEN, possess a cell type-specific mechanism to repress HPV16 oncogene expression, and this mechanism is functional only upon undergoing programmed squamous differentiation. -- In the in vivo system, there may have been uncontrollable variables, such as cytokines induced by surgical trauma or by immune responses to the lesions. To exclude a possible involvement of such factors in the putative repression function for HPV E7, the immortalized cells were tested in the organotypic (raft) culture system. Raft culture is an in vitro epithelia reconstruction system, which allows control over the epithelial reconstruction conditions. The morphology and E7 expression of the raft lesions were similar to those in the in vivo implants, indicating that this HPV repression function is independent of in vivo factors. -- The epithelial-specific expression of HPV16 genes, including that of the E7 gene, is controlled by the long control region (LCR) in the HPV16 genome. Thus, the role of the HPVI6 LCR in the compartmentalized expression of E7 was evaluated. Immortalized cell lines were established by in vitro transfection of the pSV₂1667 plasmid, which contained the HPV16 E6 and E7 genes regulated by the SV40 early promoter. The immortalized cells all contained integrated viral oncogenes and expressed E7 at a comparable level in in vitro monolayer cultures. Furthermore, the viral oncogenes appeared to retain the functional heterologous control elements, since transforming growth factor β (TGF-β) repressed E7 expression in the cells immortalized by HPV 16 genomic DNA, but not in those immortalized by pSV₂1667. The signal transduction pathway for TGF-β was functional in all the cell lines, because c-myc expression showed normal response to TGF-β. Unexpectedly, the raft lesions from the pSV₂1667-immortalized HEN and HKCs showed pathological features, E7 expression patterns, and 5-AZ responses very similar to those of their respective HPV16 genomic DNA-immortalized counterparts. These results indicated that the squamous differentiation-associated cellular mechanism responsible for the compartmentalized E7 expression in the HKC lesions is not dependent on the HPV16 LCR. -- 5-azacytidine (5-AZ), a DNA demethylation agent, decompartmentalized E7 expression in the raft of the immortalized HFK, which was accompanied with increased severity of dysplastic changes. Treatment of normal HEC with 5-AZ induced selective changes in the patterns of CK expression. Therefore, the compartmentalized E7 expression in the HKC lesions may result from a cellular mechanism that is functional for gene repression at a global level in differentiating HKC and is mediated by DNA methylation. -- To test the clinical relevance of the above observations, expression of the HPV16 E7 oncogene was examined by in situ hybridization in natural premalignant lesions occurring at the cervical metaplastic SSE (CINs) and vulval native SSE (VINs). The status of HPV16 DNA and permissiveness for viral vegetative replication in the lesions were evaluated by assessing viral DNA amplification and transcription of the viral L1 structural gene with DNA and RNA in situ hybridization assays, respectively. In the VINs, E7 was expressed in the bottom layers of lesions, with viral DNA amplification and late gene expression in the differentiated upper layers. In contrast, E7 was expressed in the CINs throughout the lesions. Furthermore, in the immature metaplastic SSE, viral DNA replication occurred in the bottom cells, without the expression of the viral L1 gene, in contrast to the upper layer viral DNA amplification in the mature metaplastic SSE. Thus, HPV16 infection in immature metaplastic SSE may represent a form of non-vegetative infection, and the expression of the HPV16 oncogenes and possibly the amplification of viral DNA were dysregulated. -- In summary, my studies constitute the first systematic and experimental dissection of the relationship between squamous metaplasia, cervical cancer and HPV 16 infection. The results showed that metaplastic SSE derives from HEN, that viral oncogene expression in HEN and HKC in conditions allowing squamous differentiation is distinct, and that this difference is specific for the cell types but not for the HPV16 LCR. The results from clinical samples revealed that HPV16 infection may undergo a distinct life cycle in the cervical immature metaplastic SSE, which is featured by persistent viral oncogene expression and dysregulated viral DNA amplification. Because persistent expression of the HPV16 oncogenes and viral DNA integration are common features of HPV16-containing cervical cancers, this state of non-vegetative infection may be important for the unusual susceptibility of the cervical metaplastic epithelium to HPV16-mediated oncogenesis.


identifier: Wadman, Wanda A. <https://research.library.mun.ca/view/creator_az/Wadman=3AWanda_A=2E=3A=3A.html>   (1997) Staff nurses' attitudes and perceptions toward nursing research.  Masters thesis, Memorial University of Newfoundland.

abstract: The purpose of this study was to explore staff nurses' attitudes toward nursing research through examining their perceptions of selected aspects of research. This study was an approximate replication of Alcock, Carroll, and Goodman's (1990) research. The results will provide an overview of the nursing research milieu in Newfoundland and Labrador. -- The Theory of Reasoned Action (Ajzen, 1988) was chosen as the conceptual framework for this study. The Theory of Reasoned Action suggests that a person's attitude toward a behavior will be directly related to a set of beliefs about the behavior. This suggests that the nurse's attitude toward becoming involved in, and using nursing research, is linked to the nurse's beliefs or perceptions concerning nursing research. -- A descriptive design was used for this study. The sample consisted of 319 staff nurses chosen by systematic random selection. Data were collected using a questionnaire designed by Alcock et al. (1990) . The questionnaire contained six sections which addressed the following: demographic data, perceived value of nursing research, perceived role in nursing research, interest in research, research experience, and perception of research climate in the workplace. Descriptive and inferential statistics were used for data analysis. -- The results indicated that staff nurses valued nursing research, and perceived that they had a variety of roles in nursing research, particularly in relation to improving the quality of patient care provided. While staff nurses were clearly interested in nursing research, they had limited research experience. Staff nurses perceived limited support for nursing research in their employing agency, especially administrative support. In addition, most were unaware of the existence of structures to support nursing research in their employing agency. -- The following nurses placed a higher value on nursing research: those employed on a part-time basis, 41 years of age and older, employed in community health centers, and educated at the diploma level. Nurses educated at the baccalaureate level demonstrated greater perceived role in, and interest in, nursing research, and indicated more research experience. Nurses educated at the baccalaureate level, and those enrolled in continuing education perceived the employing agency to be less supportive of nursing research than did diploma prepared nurses. -- These findings have implications for the utilization of nursing research in nursing practice as they indicate that the goal of providing evidence-based care is clearly not impeded by nurses' attitudes toward nursing research.


identifier: Prasad, Nagendra <https://research.library.mun.ca/view/creator_az/Prasad=3ANagendra=3A=3A.html>   (1994) Study of epidermal growth factor-mediated growth inhibition of MDA-468 human breast cancer cells : a role for the tumour suppressor p53 in cell cycle arrest.  Doctoral (PhD) thesis, Memorial University of Newfoundland.

abstract: Epidermal growth factor (EGF), in pharmacological concentrations, inhibits the cellular proliferation of MDA-468 human breast cancer cells. In this study, we characterized this unusual phenomenon by means of cell cycle and Northern blot analysis. Following EGF treatment, cell number in Gl phase increased, with a concomitant depletion of cells in S and G2/M phases of the cell cycle, as revealed by flow cytometric analysis of DNA content. DNA synthesis, as measured by incorporation of [³H] thymidine, was reduced to about 35% of that measured in control cells after 48 hours of EGF treatment, confirming the earlier observation of G1 arrest. Moreover, DNA synthesis returned to normal following the removal of EGF from the growth arrested cells. Northern blot analysis revealed that EGF treatment did not alter the induction of early Gl marker, c-myc, nor expression of the late G1 markers, proliferating cell nuclear antigen and thymidine kinase. However, EGF treatment resulted in the downregulation of p53 and histone 3.2 steady-state mRNA levels. Increased levels of these gene transcripts are observed at the Gl/S boundary and in S phase, respectively. These results indicated that EGF reversibly blocks the cell cycle of MDA-468 cells at the G1/S boundary. -- The observation of lowered mRNA levels of p53 (a point mutant, p53²⁷³.His) led us to hypothesize its possible involvement in EGF-mediated G1 arrest. The wild- type p53 is generally regarded as a tumour suppressor and mutations in p53 are commonly seen in a wide variety of cancers. Since it has been suggested that this particular mutant p53²⁷³.His, might have gained an alternative function and act positively to enhance cell proliferation, we hypothesized that EGF-induced G1 arrest might be mediated by changes induced in p53²⁷³.His. In order to test this hypothesis, an in-depth analysis of EGF effect on p53²⁷³.Hiswas undertaken. -- In our studies, no immediate effects of EGF-treatment were observed with regard to mRNA and protein levels, protein stability, and protein synthesis of p53²⁷³.His in MDA-468 cells. Interestingly, an EGF-dependent altered conformation of p53 was indicated by immunofluorescence studies. These experiments demonstrated a decreased PAb 240 (mutant-specific anti-p53) reactivity of nuclear p53²⁷³.His in EGF-treated cells, while PAb 1801 and PAb 1620 (pan-specific and wild- type-specific anti-p53 antibodies respectively) continued to detect the nuclear presence of p53²⁷³.His. Further studies indicated a decreased phosphorylation of p53²⁷³.His in EGF-treated cells. The EGF-dependent conformation shift and lowered phosphorylation levels of nuclear p53²⁷³.His were detected early enough to be attributed as causative of EGF-mediated cell cycle arrest. -- In order to obtain further confirmation for the observed EGF-dependent altered conformation, and to test its functional significance in terms of transcriptional regulation by p53²⁷³.His, DNA-binding and transactivation assays were performed. We detected specific complexes of p53²⁷³.His with both CON and FRA oligonucleotides, two of the known p53-DNA binding sites. Furthermore, in transient transfection assays, these sequences mediated p53-specific transcriptional modulation, namely transactivation through CON, and repression through FRA. These experiments, indicated a distinct function for p53²⁷³.His in MDA-468 cells. Interestingly enough, EGF-treatment of MDA-468 cells, resulted in increased DNA- binding ability of p53²⁷³.His to both CON and FRA. In addition, EGF potentiated p53-mediated transcription from a minimal promoter. Taken together, this study, has provided significant insights into EGF-mediated growth inhibition in MDA-468 breast cancer cells and furnished enough evidence to implicate the involvement of an endogenous mutant p53 in EGF signal transduction. Furthermore, the data presented, suggest a novel and unique function for p53²⁷³.His which may be cell-type specific.


identifier: Baliwangi, Lahar <https://research.library.mun.ca/view/creator_az/Baliwangi=3ALahar=3A=3A.html>   (1999) Study of reliability, maintainability, and availability : a case study of a shuttle tanker propulsion system.  Masters thesis, Memorial University of Newfoundland.

abstract: One aspect in ship propulsion system development is reliability and maintainability analysis. It is concerned with the level of confidence one has in the reliable operation of the plant. Reliability analysis deals with the configuration of the system, testing of components, extending component lifetime and component maintenance. -- This research models a ship propulsion system's reliability and maintainability in order to predict and to optimize the effectiveness of the ship propulsion system. A propulsion system of a shuttle tanker, M/T Mattea, is used as a model. The analysis is presented in the form of statistical simulations that are used for determining the reliability level and for measuring the maintainability and availability. The reason a simulation is used rather than a mathematical model is that the latter is too complex to use. The objectives of this research is to review the process of evaluating a shuttle tanker propulsion system's reliability, maintainability, availability, and to investigate the computerised simulation statistical approach to help manage the information that is required in making intelligent maintenance and repair decisions.


identifier: Purchase, Kym <https://research.library.mun.ca/view/creator_az/Purchase=3AKym=3A=3A.html>   (1998) Stimulation of the urea cycle in endotoxemic rats.  Masters thesis, Memorial University of Newfoundland.

abstract: Muscle wasting is common in infection. There is increased muscle proteolysis without concomitant increased muscle protein synthesis so negative nitrogen balance results. Much work has focused on this aspect of catabolic states. However, increased release of amino acids into circulation leads to elevated amino nitrogen levels. The liver is the site for detoxification of amino nitrogen wastes, particularly ammonia. The urea cycle, located only within the periportal hepatic acinus, converts neurotoxic ammonia to urea which may be excreted in the urine. The response of the urea cycle subsequent to endotoxin administration was of specific interest to this work. -- In this study, a single intraperitoneal injection of E. coli lipopolysaccharide (LPS,0127 : B8) at a sublethal dose (3 mg/kg) resulted in a nearly three-fold increase in urea excretion from fasted rats between 12-24 hours after injection, compared to saline- injected controls. Substrates for urea synthesis were also measured. Ammonia levels were not changed in liver, muscle, blood or plasma 18 hours after endotoxin injection. There were significant changes in the total concentrations of amino acids in both arterial plasma and in the liver. Levels of alanine and glutamine, the primary glucogenic amino acids, were also affected subsequent to LPS injection. Alanine was significantly increased in all sample groups (skeletal muscle, liver, blood and plasma from hepatic portal vein and abdominal aorta)in response to LPS. Glutamine concentrations were not increased in the liver nor arterial blood but were significantly elevated in hepatic portal venous plasma and blood and in arterial plasma. There was, however, a significant decrease in muscle glutamine which is in agreement with findings in the literature. There appears to be an increase in circulating ureagenic substrates as well as an increase in the hepatic content of amino acids between 12-24 hours after LPS-injection in rats. -- The urea cycle exhibits compartmentation of metabolism. The first two enzymes (carbamyl phosphate synthetase I, CPS I; ornithine transcarbamylase, OTC) are located within the mitochondrion while the remaining enzymes (argininosuccinate synthetase, AS; argininosuccinate lyase, AL; arginase) are found in the cytosol. Assays of the enzymes of the urea cycle were carried out 24 hours after injection with LPS or saline. There was no increase in total activity, in vitro, of any of the enzymes post-LPS treatment. A previous study in our lab has found that liver protein increases by 18% in response to LPS but this increase is not sufficient to account for the three-fold increase of urea excretion from rats. -- Regulation of flux through the urea cycle enzymes has been previously reported to be limited by the activity of CPS I. In isolated intact rat liver mitochondria, the rate of citrulline synthesis was doubled in rats 24 hours after injection of LPS compared to the saline controls. The mitochondrial portion of the urea cycle, therefore, was stimulated in response to LPS. N-acetylglutamate (NAG), an allosteric activator of CPS I, was hypothesized to play a role in the increased citrulline-synthesizing capacity of mitochondria isolated from endotoxemic rats. NAG levels were measured in quick frozen mitochondrial samples from endotoxemic and saline control rats in which citrulline synthesis had also been measured in a separate aliquot. GC-MS analysis by Dr. Kratz (Baltimore, MD) determined that mitochondria from endotoxemic animals contained significantly more NAG (50%) compared to saline controls. Analysis of the relationship between citrulline synthesis from these mitochondria and the NAG content showed a significant positive correlation between NAG and the rate of citrulline synthesis. Finally, to assess the effect of NAG upon citrulline synthesis, we carried out experiments utilizing uncoupled mitochondria in the presence of varying concentrations of exogenous NAG. At 24 hours post-injection, mitochondria from LPS-injected animals synthesized citrulline at double the rate of mitochondria from the saline control animals (as seen in intact, coupled mitochondrial studies) but as the concentration of exogenous NAG reached 2.0-10.0 mM the difference in citrulline synthesizing capacity between the two groups was abolished. We propose, therefore, that by 24 hours after injection with bacterial lipopolysaccharide the increased urea synthesis in rats involves both increased ureagenic substrate load (amino acids) and CPS I activation by increased mitochondrial NAG levels.


identifier: Ebead, Usama Ali Ali <https://research.library.mun.ca/view/creator_az/Ebead=3AUsama_Ali_Ali=3A=3A.html>   (2002) Strengthening of reinforced concrete two-way slabs.  Doctoral (PhD) thesis, Memorial University of Newfoundland.

abstract: Strengthening of existing concrete structural elements is a viable means for improving the performance of such elements. Plenty of strengthening-related research work on beams and columns has been conducted. However, research work related to two-way slab strengthening is very scarce. Hence, there are academic and industrial needs to investigate such an issue experimentally and theoretically. This thesis is an attempt to fill the need for an experimental and theoretical research work on the punching shear and flexural strengthening of two-way slab system. -- The experimental phase of this research work includes testing of three groups of specimens. The first and second groups are composed of specimens strengthened using steel plates and steel bolts. The specimens of the first group are loaded centrally omV The second group of specimens is loaded centrally combined with lateral static or cyclic moment. The specimens of the third group are loaded centrally and strengthened with either Carbon Fibre Reinforced Polymer (CFRP) strips or Glass Fibre Reinforced Polymer (GFRP) laminates. -- The first group of specimens is used to develop and optimize a strengthening technique using the integration of steel plates and steel bolts. The effectiveness of four different configurations of steel plates and steel bolts are evaluated. The steel plates are assumed to act as horizontal flexural reinforcement representing an equivalent concrete drop panel. Moreover, the steel bolts are designed to act as vertical shear reinforcement, to transfer the horizontal forces between steel plates and concrete slab, and to confine the concrete between the steel plates. An average increase in the load capacity of 50% is achieved over that of the unstrengthened specimens. -- The second group of specimens is intended to evaluate the performance of recommended steel strengthening technique for specimens subjected to static or cyclic moments. The ultimate load capacity is increased by an average of 122% for specimens subjected to static moment compared to the unstrengthened specimens. For the specimens subjected to cyclic moment, the lateral drift is increased by 76% compared to the unstrengthened specimens. -- The third group includes specimens strengthened using CFRP strips and GFRP laminates for flexural-strengthening. In addition, This group includes specimens strengthened with CFRP strips and steel bolts for punching-shear strengthening. Utilizing CFRP strips and GFRP laminates contribute to an average increase of the flexural capacity of two-way slabs by an average of 36% compared to that of the unstrengthened specimens. However, a small average increase within 9% is achieved for the CFRP punching shear-strengthening. -- The theoretical work is composed of two parts: mechanical model and Finite Element Analysis (FEA). In the first part, a mechanical model is developed to analyze centrally loaded two-way slabs strengthened using steel plates. A concrete model that considers the biaxial state of stress of concrete as well as the confinement effect of steel plates is introduced. An iterative incremental mechanical model is used to determine the load carrying capacity and to evaluate the deformation characteristics of strengthened slabs at each load increment until failure. -- In the finite element analysis part, a full bond assumption is made between the concrete and both reinforcing steel bars and the strengthening FRP material. The comparison between the FEA and the experimental results showed an acceptable agreement. A tension-stiffening model is recommended for the concrete constitutive model taking into consideration the effect of strengthening material on the concrete behaviour in tension. In addition a regression equation based on the statistical approach of the Response Surface Methodology is recommended. The tension stiffening model is useful as an input in finite element packages and useful for classical approaches. In addition, The regression design equations can be used to provide simple design guide for engineers to predict the ultimate load carrying capacity of CFRP and GFRP strengthened two-way slabs.


identifier: Carroll, Linda <https://research.library.mun.ca/view/creator_az/Carroll=3ALinda=3A=3A.html>   (2000) Student services and leadership development in a university setting.  Masters thesis, Memorial University of Newfoundland.

abstract: Throughout my course work in educational leadership, I became interested in leadership and its impact on the organization. Specifically, it became apparent that leadership style was important to the running of this (and any other) institution. -- Observing various leadership styles caused me to ask what style of leadership is suited to student service providers and what style should we be developing in our students? My research on the topic of transformational leadership spoke directly to this question. -- The literature clearly identifies transformational leadership as a good framework from which to develop leadership. The first important step in this process is understanding our role within the university setting. This will be the focus of paper number one. A historical review will examine the changing relationship of the student service provider with students and within the university. -- Understanding the theoretical underpinnings of organizational theory as it has evolved throughout this century is an important step to examining the evolution of leadership theory. Paper number two will provide this framework.


identifier: Harmin, Sharr Azni <https://research.library.mun.ca/view/creator_az/Harmin=3ASharr_Azni=3A=3A.html>   (1990) Studies of seasonal gonadal cycles and hormonal control of reproduction in winter flounder, Pseudopleuronectes americanus (Walbaum).  Doctoral (PhD) thesis, Memorial University of Newfoundland.

abstract: Studies were conducted using gonadotropic hormone- releasing hormone analog (GnRH-A) in adult winter flounder, Pseudopleuronectes americanus (Walbaum). This species was used as a model fish in an effort to understand seasonal gonadal cycles and the pituitary-gonadal axis regulation of reproduction in a seasonally breeding teleost. -- The natural seasonal reproductive cycle was investigated over a two-year period. In females, rapid ovarian recrudescence which begins in August, was largely completed by December, However, ovarian growth continued throughout the winter as shown by further increases in both gonadosomatic index and oocyte diameter. Analysis of oocyte-size frequency distribution indicated that in reproductively active females, previtellogenic and vitellogenic oocytes are present but just one clutch of vitellogenic oocytes matured per reproductive season. Plasma estradiol increased in parallel with gonadosomatic index and oocyte diameter, whereas plasma testosterone remained low during the early stages of ovarian recrudescence. Compared with females, male testicular development was more rapid, with GSI reaching a maximum in October followed by declining values prior to spawning. Plasma testosterone and 11-ketotestosterone levels rose slowly in association with the progress of testicular development. Plasma sex steroids reached their peak values just prior to the spawning period (May/June) in both sexes, while the minimum seasonal hormone values were observed in fish with regressed gonads. -- Seasonal responses of the pituitary, and indirectly the gonads, to GnRH-A were monitored by measuring plasma androgens and estrogen following in vivo hormone treatment. Both males and females were highly responsive to GnRH-A treatment throughout the gonadal recrudescence period and the prespawning phases; little or no response was observed during the regressed period. Plasma levels of estradiol, testosterone and 11-ketotestosterone were elevated following GnRH-A administration and the hormone levels were sustained for prolonged periods of time. The effects of GnRH-A treatment on the reproductive cycle were also observed by noting increases in gonadosomatic index and oocyte diameter in fish during the period of gonadal recrudescence. During the prespawning stage, ovulation and spermiation could be achieved following releasing hormone treatment. In contrast, the low gonadosomatic index remained unchanged by GnRH-A treatment during the regressed period. -- The capacity of GnRH-A to accelerate final egg maturation/ovulation and induce spawning was investigated in prespawning females prior to the natural spawning period. Hormone administration induced ovulation in some females in February, as early as three months prior to the normal spawning season. Egg/larval quality data indicated that GnRH-A can be used to advance spawning of female flounder without having serious detrimental effects on the rates of egg fertilization, hatching and larval survival.


identifier: Hari, Ravinder Pal Kaur <https://research.library.mun.ca/view/creator_az/Hari=3ARavinder_Pal_Kaur=3A=3A.html>   (1994) Studies on a new strain of Rhodotorula rubra isolated from yogurt.  Doctoral (PhD) thesis, Memorial University of Newfoundland.

abstract: A new strain of red yeast was isolated from yogurt and identified as Rhodotorula rubra TP 1. Studies were conducted on its pigment production, morphology, sexuality, growth kinetics and possible use in aquaculture. -- Studies on the sexuality indicated a basidiomycetous affinity of the isolate and hence the first report of a sexual stage in Rhodotorula rubra. -- The isolate showed good growth on different substrates. It grew readily on a molasses and wort medium. Peat hydrolysate also supported a satisfactory growth of the yeast. The pH profiles were also studied and growth was found within a broad pH zone of 3 to 10. -- Studies on the genetics of the isolate included mutagenesis with nitrosoguanidine. One of the two mutants obtained utilized additional substrates for growth and pigmentation. This mutant also showed a higher value for productivity, yield coefficient and economic coefficient. -- The kinetics of growth and pigment formation of the isolate showed pigmentation in the exponential phase, like Phaffia rhodozvma. The isolate was grown in a 1500 L batch fermenter using molasses and wort as the growth medium and the influence of various kinetic parameters on the yield coefficient and specific growth rate was observed.  The fermenter culture showed a higher value for the specific growth rate and productivity than that of the shake flask cultures. -- Studies on aquaculture involved a feeding trial for 9 weeks using rainbow trout. The new yeast was found to be a good source of pigments as well as nutrients for the fish when fed as intact cells. Though the commercial astaxanthin containing diet induced better pigmentation than that containing the test yeast, the total color difference between the fish fed with the two diets declined to almost one-third at the end of the feeding trial. The test yeast fed fish had higher growth rates than those fed with the commercial pigment. The proximate analysis of the fish was done wherein the test yeast-fed fish showed an increase in the protein amount at the end of the feeding trial while the synthetic astaxanthin-fed fish showed a decrease. The lipid levels of both groups decreased at the end of the experiment.