identifier: Engel, Mônica Taís <https://research.library.mun.ca/view/creator_az/Engel=3AM=F4nica_Ta=EDs=3A=3A.html>   (2016) People and big cats (Panthera onca and Puma concolor) of the Atlantic Forest, Brazil.  Masters thesis, Memorial University of Newfoundland.

abstract: Conservation of large felids is not only about collecting ecological information; it is also about understanding people’s values, beliefs, attitudes and behaviour. The overarching goal of this thesis is to assess the relationship between people and jaguars and pumas. Specifically by contributing to the understanding of public acceptance of big cats, as well as the forces (cognitive and social) that influence people’s acceptability. Self-administered questionnaires (n=326) were applied to rural residents outside two protected areas in the State of Sao Paulo: Intervales and PETAR state parks. Findings showed that the acceptability of killing big cats varied accordingly to attitudinal type (positive and negative). Additionally, acceptability of jaguars and pumas was influenced by existence values, attitudes and park credibility. Human dimensions research helped in understanding the relationship between people and the big cats, highlighting the need, for example, to improve the credibility of the parks in the communities and to decrease the fear of jaguars and pumas.


identifier: Sarkar, Munmun <https://research.library.mun.ca/view/creator_az/Sarkar=3AMunmun=3A=3A.html>   (2016) Development of ultrathin molecularly imprinted polymer films for polyaromatic hydrocarbon sensing.  Masters thesis, Memorial University of Newfoundland.

type: Thesis NonPeerReviewed

abstract:
Produced water is one of the pollutants produced at a large scale during offshore oil
and gas activities. Wastewater which has been separated from oil and gas during production
can be defined as produced water. Although produced water contains a wide
variety of toxic chemicals, polycyclic aromatic hydrocarbons (PAHs) within produced
water have received considerably greater attention due to their capability of causing
long term toxic effects at the individual level in the marine environment. Due to the
adverse effect of PAHs (organic pollutants) on the environment and lives, accurate
detection and monitoring of PAHs is required before discharging the produced water
into the sea. Molecularly imprinted polymers (MIPs) can capture analytes such as
PAHs, and when coupled with a detection mechanism, can act as sensors for those
pollutants. These films are suitable for remote sensing because they can effectively
concentrate the analyte in situ. To combine MIPs with an optical sensing element, it
can be useful to create them in an ultrathin film format, which is also important for
portability to remote areas. One way to achieve a uniform film with nanoscale thickness
is through spin coating. In this study, ultrathin film MIPs have been prepared
following a new procedure. Various processing parameters including spin time and
speed have been explored to determine their effects on MIP film structure as well as
their removal and uptake of template molecules. Raman spectroscopy was used for
the detection of the analyte, and atomic force microscopy was used to characterize the films’ morphology as well as to measure the thickness of the films, which ranged from
300 nm down to 4 nm. Our findings have determined that different spin speeds produce
different film morphology. Furthermore, thinner films showed more homogeneity
and reproducibility.


identifier: Cavanaugh, Tyler <https://research.library.mun.ca/view/creator_az/Cavanaugh=3ATyler=3A=3A.html>   (2016) The effects of foam rolling on muscular co-activation around the knee joint.  Masters thesis, Memorial University of Newfoundland.

abstract:
The major objectives of this thesis were to determine if foam rolling had any effect on antagonist muscle activation
and whether those changes would alter muscular co-activation patterns. The results from this thesis along with current
literature will help clinicians to develop adequate exercise prescription for rehabilitative and pre-activity purposes. The
existing literature has shown that foam rolling or roller massagers can increase range of motion (ROM), improve
performance, and alter pain perception, however little research exists regarding changes in muscle activation following
foam rolling. This study developed a reliable method for measuring muscle activation around the knee joint and using that
method found that foam rolling the quadriceps can impair hamstrings muscle activation likely due to greater levels of
perceived pain when rolling the quadriceps.


identifier: Islam, Md Toufiqul <https://research.library.mun.ca/view/creator_az/Islam=3AMd_Toufiqul=3A=3A.html>   (2016) Design, development and control of a new generation high performance linear actuator for parallel robots and other applications.  Masters thesis, Memorial University of Newfoundland.

abstract:
The main focus of this research is to design and develop a high performance linear
actuator based on a four bar mechanism. The present work includes the detailed analysis
(kinematics and dynamics), design, implementation and experimental validation of the
newly designed actuator. High performance is characterized by the acceleration of the
actuator end effector. The principle of the newly designed actuator is to network the four
bar rhombus configuration (where some bars are extended to form an X shape) to attain
high acceleration.
Firstly, a detailed kinematic analysis of the actuator is presented and kinematic
performance is evaluated through MATLAB simulations. A dynamic equation of the
actuator is achieved by using the Lagrangian dynamic formulation. A SIMULINK control
model of the actuator is developed using the dynamic equation. In addition, Bond Graph
methodology is presented for the dynamic simulation. The Bond Graph model comprises
individual component modeling of the actuator along with control. Required torque was
simulated using the Bond Graph model. Results indicate that, high acceleration (around
20g) can be achieved with modest (3 N-m or less) torque input.
A practical prototype of the actuator is designed using SOLIDWORKS and then
produced to verify the proof of concept. The design goal was to achieve the peak acceleration of more than 10g at the middle
point of the travel length, when the end effector travels the stroke length (around 1 m).
The actuator is primarily designed to operate in standalone condition and later to use it in
the 3RPR parallel robot.
A DC motor is used to operate the actuator. A quadrature encoder is attached with the DC
motor to control the end effector. The associated control scheme of the actuator is
analyzed and integrated with the physical prototype. From standalone experimentation of
the actuator, around 17g acceleration was achieved by the end effector (stroke length was
0.2m to 0.78m). Results indicate that the developed dynamic model results are in good
agreement.
Finally, a Design of Experiment (DOE) based statistical approach is also introduced to
identify the parametric combination that yields the greatest performance. Data are
collected by using the Bond Graph model. This approach is helpful in designing the
actuator without much complexity.


identifier: Stanley, Ryan <https://research.library.mun.ca/view/creator_az/Stanley=3ARyan=3A=3A.html>   (2015) Laboratory- and field-based approaches for evaluating connectivity in a dynamic coastal environment: applications for management and conservation.  Doctoral (PhD) thesis, Memorial University of Newfoundland.

abstract:
Connectivity of marine populations, defined as the magnitude of discrete population units interconnected through dispersal, has important implications for the ecology and management of commercially harvested species. Sustainable management requires consideration of the spatial-temporal structure of exploited populations. Connectivity measurement requires accuracy in providing relevant spatial information. My thesis bridges laboratory and field based approaches to provide integrated and reliable estimates of connectivity. Using controlled laboratory experiments, I determined that the interaction of temperature and salinity influenced composition of juvenile Atlantic cod otoliths, thus questioning whether otoliths can reconstruct environmental history when environmental variables are studied in isolation. Utilizing a field survey, I demonstrated that otolith chemistry differences could discriminate among juvenile cod from adjacent bays and coasts of origin. Assignment of residuals derived from laboratory model predictions and field observations improved discrimination, illustrating underlying fine-scale biocomplexity in otolith chemistry, and potential influence of environment on assignment at small spatial scales. These results demonstrate the utility of otolith chemistry as a tool to evaluate contributions of sub-populations to Atlantic cod stocks, and, highlight limitations imposed by environmental variation at scales less than 100 km. In a second series of experiments that focused on larval American lobster, I demonstrated that swimming ability and vertical position in the water column varied significantly among ontogenetic stages and did not did not increase linearly with development. Through a series of common garden experiments, I demonstrated biogeographic variability in swimming ability and the influence of environment. Variability in swimming apparently reflects ambient conditions of the pelagic habitat of origin. Utilizing a biophysical model incorporating observed swimming behaviours, I demonstrated that larval behaviour significantly influenced the magnitude, direction, and duration of dispersal, and that this influence varied both spatially and temporally. These results provide a biological-behavioural context to parameterize bio-physical models and an approach to improve accuracy of dispersal models and advance understanding of connectivity.
By improving aspects of design and testing assumptions, these analyses provide a template for future use of otolith chemistry and biophysical modelling, punctuating the need for calibration and validation of the assumptions of each strategy when applied to dynamic field conditions.


identifier: Patrick, Mackenzie <https://research.library.mun.ca/view/creator_az/Patrick=3AMackenzie=3A=3A.html>   (2016) Metamorphic investigation of mid-P aluminous gneisses from the central Grenville Province.  Masters thesis, Memorial University of Newfoundland.

abstract:
This is a metamorphic study of mid-P anatectic aluminous gneisses from the
Manicouagan and lac du Milieu areas of the central Grenville Province. The rocks are
derived from hydrothermally altered felsic protoliths and were metamorphosed at
granulite facies conditions during the Grenvillian orogeny. The samples come from three
locations separated by several tens of kilometers and exhibit a wide range of textures and
bulk compositions. However, they all have the same peak mineral assemblage: garnet +
biotite + quartz + K-feldspar +/- plagioclase +/- sillimanite with retrograde cordierite in
some, and show evidence of partial melting and melt loss. In terms of mineralogy and
bulk composition, the samples were divided into two groups, sillimanite-rich and
sillimanite-poor, with a high and low Alumina index in the AFM space, respectively.
Phase equilibria modeling in the Na₂O–CaO–K₂O–FeO–MgO–Al₂O₃–SiO₂–H₂O–
TiO₂–O (NCKFMASTHO) system using Thermocalc constrained the P–T field of the
peak mineral assemblage at 800–900ºC and 6–11kbar, with melt solidification in the
range of 800–865ºC and 6–8kbar. The presence of sillimanite inclusions in garnet, and of
only scarce, retrograde cordierite, is consistent with moderate dP/dT gradient ‘hairpin’ P–
T paths, which were similar between the three locations.
This study also investigated the role of Fe3+ on phase stability in mid-P aluminous
systems. Fe³⁺ is problematic because although it is incorporated in the NaCKFMASTHO
system, it is rarely measured in modeled minerals and rocks and its value is generally
assumed. Biotite may contain significant amounts of Fe³⁺, and these were analysed by Mössbauer spectroscopy in selected samples, where they were found to be low (0-4%). In
addition, the effect of increasing the bulk Fe³⁺ in the mid-P portion of phase diagrams
was modeled. This increase added new minor phases and changed the phase proportions,
as well as shifted phase boundaries to a small degree, but P–T paths remained largely
unaffected.
Finally, the two methods commonly used in phase equilibria modeling to account
for melt loss were compared. In some cases there were major differences in the
topologies between the ‘melt reintegration’ and ‘adding water’ methods, but the former
method is the most consistent with the rock data, and should be the method of choice.


identifier: Hartmann, Nicholas Andrew <https://research.library.mun.ca/view/creator_az/Hartmann=3ANicholas_Andrew=3A=3A.html>   (2015) Vernacular perceptions of masculinity and fatherhood among Newfoundland offshore workers and their families.  Doctoral (PhD) thesis, Memorial University of Newfoundland.

abstract:
My thesis is an ethnographic study of how offshore workers of
Newfoundland and Labrador, as well as their families, express and reflect upon
traditional Newfoundland constructs of fatherhood and masculinity through
narrative and ritual. With a schedule that often involves a constant shift between
home and away, offshore workers in the province take part in high-risk
professions in order to provide for their families back home. These professions,
and their associated lifestyles, involve the incorporation of routine strategies that
allows family culture to maintain itself. At the same time, these professions
largely carry on a tradition of hegemonically masculine practices, albeit in a
newer context.
Drawing on a blend of literary and ethnographic research based on the
Avalon Peninsula, I utilize examples of current Newfoundland culture to describe
how nostalgic memoirs of outport Newfoundland create models of hegemonically
masculine fatherhood in the province. I go on to explain how those models
manifest themselves in the experiences of current offshore workers, and how
they affect their spouses and children. Furthermore, through examining how
young adults with offshore-working parents describe their experiences of their
fathers, it is possible to see how the effects of local hegemonic masculinities are
manifested through narratives about fathers who worked away from home.


identifier: Ellis, Nichola <https://research.library.mun.ca/view/creator_az/Ellis=3ANichola=3A=3A.html>   (2016) Effects of introduced moose (Alces alces) on vegetation composition, nutrient dynamics, and decomposition rates in boreal forest ecosystems in Newfoundland, Canada.  Masters thesis, Memorial University of Newfoundland.

abstract: Globally, consumers affect ecosystem processes including nutrient dynamics. Herbivores have been known to slow nutrient flow in boreal forest ecosystems. I examined the effects of introduced moose on disturbed forests of Newfoundland, Canada by conducting a field experiment during August - November 2014 in 20 paired moose exclosure-control plots. I tested whether moose browsing directly and indirectly affected forests by measuring plant species composition, litter quality and quantity, soil quality, and decomposition rates in areas moose exclosure-control plots. I analyzed moose effects using linear mixed effects models and found evidence indicating that moose reduce plant height and litter biomass affecting the availability of carbon, nitrogen, and phosphorus. However, plant diversity, soil quality, and litter decomposition did not differ between moose exclosures and controls. Moose in Newfoundland directly influence plant regeneration and litter biomass while indirect effects on soil ecosystems may be limited by time, disturbance, and climate.


identifier: Familusi, Olufunmilayo <https://research.library.mun.ca/view/creator_az/Familusi=3AOlufunmilayo=3A=3A.html>   (2016) Teachers' cultural values and accountability in Nigeria.  Masters thesis, Memorial University of Newfoundland.

abstract: This study investigates teacher‟s cultural values and accountability in Nigeria. A questionnaire developed by Professor Rosenblatt (University of Haifa, Israel) was used to gather quantitative data from 483 secondary teachers across Oyo, Osun, Ogun, and Lagos States in Southwest Nigeria. Data collected were analyzed using percentages, descriptive statistics, and analysis of variance (ANOVA). The findings show that Nigerian teachers have high dispositions towards both bureaucratic (external) and internal (professional) accountability and their scores for internal accountability (M= 4.4286; SD= 0.5726) were higher than their scores for external accountability (M= 3.9759; SD = 0.5575). Geographical locations made a significant difference in the scores. Teachers from urban and suburban areas demonstrate higher scores than teachers from the rural in both bureaucratic (external) and internal (professional) accountability


identifier: Afolabi, Opeyemi Oluseyi <https://research.library.mun.ca/view/creator_az/Afolabi=3AOpeyemi_Oluseyi=3A=3A.html>   (2016) Phase and partitioning behavior of phenols and polycyclic aromatic hydrocarbons in offshore oil and gas produced water.  Masters thesis, Memorial University of Newfoundland.

abstract: Produced water constitutes the largest volume of waste from offshore oil and gas operations and is composed of a wide range of organic and inorganic compounds. Although treatment processes have to meet strict oil in water regulations, the definition of “oil” is a function of the analysis process and may include aliphatic hydrocarbons which have limited environmental impact due to degradability whilst ignoring problematic dissolved petroleum species. This thesis presents the partitioning behavior of oil in produced water as a function of temperature and salinity to identify compounds of environmental concern. Phenol, p-cresol, and 4-tert-butylphenol were studied because of their xenoestrogenic power; other compounds studied are polycyclic aromatic hydrocarbon PAHs which include naphthalene, fluorene, phenanthrene, and pyrene. Partitioning experiments were carried out in an Innova incubator for 48 hours, temperature was varied from 4ﾟC to 70ﾟC, and two salinity levels of 46.8‰ and 66.8‰ were studied. Results obtained showed that the dispersed oil concentration in the water reduces with settling time and equilibrium was attained at 48 h settling time. Polycyclic aromatic hydrocarbons (PAHs) partitions based on dispersed oil concentration whereas phenols are not significantly affected by dispersed oil concentration. Higher temperature favors partitioning of PAHs into the water phase. Salinity has negligible effect on partitioning pattern of phenols and PAHs studied. Simulation results obtained from the Aspen HYSYS model shows that temperature and oil droplet distribution greatly influences the efficiency of produced water treatment system.


identifier: Gallardi, Daria <https://research.library.mun.ca/view/creator_az/Gallardi=3ADaria=3A=3A.html>   (2016) Effect of the environment on condition and quality of cultured blue mussels (Mytilus edulis) with reference to culture depth and post-harvest practices.  Doctoral (PhD) thesis, Memorial University of Newfoundland.

abstract:
The condition and quality of cultured blue mussels (Mytilus edulis) are affected by various environmental characteristics including temperature, salinity, food concentration, composition and year-to-year variability, waves, tides, and currents. Mussels are a keystone species in the ecosystem, affecting the surrounding environment through filtration, biodeposition and nutrient recycling.
This study evaluated the effects of culture depth and post-harvest handling on cultured blue mussels in Newfoundland, Canada. Depth was examined over two years; three shallow water (5 m depth) and three deep water sites (15 m depth) were compared for environmental characteristics, mussel physiological stress response, growth, and biochemical composition. The area examined presented complex hydrodynamic characteristics; deep water sites appeared to be located more often near or within the pycnocline than shallow water sites. Deep water sites presented lower temperatures than shallow sites from spring to fall. Physiological stress response varied seasonally, but was unaffected by culture depth. In Year 1 shallow and deep water mussels presented similar growth, while in Year 2 deep water mussels showed better final condition. Lipid and glycogen showed seasonal variation, but no significant differences between shallow and deep water were noted. Fatty acid profiles showed a higher content of omega-3s PUFA in deep water sites at the end of Year 2. Under extreme weather conditions, deep water appeared to provide a more stable environment for mussel growth than shallow water.
Harvested mussels were kept under ambient live-holding conditions for one month during the fall, winter, and spring seasons. They were compared to freshly harvested mussels for condition, biochemical profile and palatability. A progressive loss of dry tissue weight and an increase in water content were shown over the holding period during the fall and spring seasons, when compared to field controls. The biochemical analysis suggested seasonal changes; differences in triacylglycerol content were found in the spring season when compared with controls. The palatability data indicated that the panellists were unable to determine a difference between mussels kept in holding and those freshly harvested from the site. This study presents new knowledge for mussel farming, especially in terms of environmental interactions and deep water culture.


identifier: Parsons, Valerie H. <https://research.library.mun.ca/view/creator_az/Parsons=3AValerie_H=2E=3A=3A.html>   (2015) Analysis of bio-derived platform chemicals in ionic liquid media by desorption/ionization mass spectrometry.  Masters thesis, Memorial University of Newfoundland.

abstract:
In this work, desorption/ionization mass spectrometry was employed for the analysis of sugars and small platform chemicals that are common intermediates in biomass transformation reactions. Specifically, matrix-assisted laser desorption/ionization (MALDI) and desorption electrospray ionization (DESI) mass spectrometric techniques were employed as alternatives to traditional chromatographic methods.
Ionic liquid matrices (ILMs) were designed based on traditional solid MALDI matrices (2,5-dihydroxybenzoic acid (DHB) and α-cyano-4-hydroxycinnamic acid (CHCA)) and 1,3-dialkylimidazolium ionic liquids ([BMIM]Cl, [EMIM]Cl, and [EMIM]OAc) that have been employed as reaction media for biomass transformation reactions such as the conversion of carbohydrates to valuable platform chemicals. Although two new ILMs were synthesized ([EMIM][DHB] and [EMIM][CHCA] from [EMIM]OAc), chloride-containing ILs did not react with matrices and resulted in mixtures of IL and matrix in solution. Compared to the parent solid matrices, much less matrix interference was observed in the low mass region of the mass spectrum (< 500 Da) using each of the IL-matrices. Furthermore, the formation of a true ILM (i.e. a new ion pair) does not appear to be necessary for analyte ionization.
MALDI sample preparation techniques were optimized based on the compatibility with analyte, IL and matrix. ILMs and IL-matrix mixtures of DHB allowed for qualitative analysis of glucose, fructose, sucrose and N-acetyl-D-glucosamine. Analogous CHCA-containing ILMs did not result in appreciable analyte signals under similar conditions. Small platform compounds such as 5-hydroxymethylfurfural (HMF) and levulinic acid were not detected by direct analysis using MALDI-MS. Furthermore, sugar analyte signals were only detected at relatively high matrix:IL:analyte ratios (1:1:1) due to significant matrix and analyte suppression by the IL ions. Therefore, chemical modification of analytes with glycidyltrimethylammonium chloride (GTMA) was employed to extend this method to quantitative applications. Derivatization was accomplished in aqueous IL solutions with fair reaction efficiencies (36.9 – 48.4 % glucose conversion). Calibration curves of derivatized glucose-GTMA yielded good linearity in all solvent systems tested, with decreased % RSDs of analyte ion signals in IL solutions as compared to purely aqueous systems (1.2 – 7.2 % and 4.2 – 8.7 %, respectively). Derivatization resulted in a substantial increase in sensitivity for MALDI-MS analyses: glucose was reliably detected at IL:analyte ratios of 100:1 (as compared to 1:1 prior to derivatization). Screening of all test analytes resulted in appreciable analyte signals in MALDI-MS spectra, including both HMF and levulinic acid.
Using appropriate internal standards, calibration curves were constructed and this method was employed for monitoring a model dehydration reaction of fructose to HMF in [BMIM]Cl. Calibration curves showed wide dynamic ranges (LOD – 100 ng fructose/μg [BMIM]Cl, LOD – 75 ng HMF/μg [BMIM]Cl) with correlation coefficients of 0.9973 (fructose) and 0.9931 (HMF). LODs were estimated from the calibration data to be 7.2 ng fructose/μg [BMIM]Cl and 7.5 ng HMF/μg [BMIM]Cl, however relatively high S/N ratios at these concentrations indicate that these values are likely overestimated. Application of this method allowed for the rapid acquisition of quantitative data without the need for prior separation of analyte and IL. Finally, small molecule platform chemicals HMF and levulinic acid were qualitatively analyzed by DESI-MS. Both HMF and levulinic acid were easily ionized and the corresponding molecular ions were easily detected in the presence of 10 – 100 times IL, without the need for chemical modification prior to analysis. DESI-MS analysis of ILs in positive and negative ion modes resulted in few ions in the low mass region, showing great potential for the analysis of small molecules in IL media.


identifier: Nadarajah, Tharshanna <https://research.library.mun.ca/view/creator_az/Nadarajah=3ATharshanna=3A=3A.html>   (2016) Empirical likelihood based longitudinal studies.  Doctoral (PhD) thesis, Memorial University of Newfoundland.

abstract:
In longitudinal data analysis, our primary interest is in the regression parameters for
the marginal expectations of the longitudinal responses; the longitudinal correlation
parameters are of secondary interest. The joint likelihood function for longitudinal
data is challenging, particularly for correlated discrete outcome data. Marginal modeling
approaches such as generalized estimating equations (GEEs) have received much
attention in the context of longitudinal regression. These methods are based on the
estimates of the first two moments of the data and the working correlation structure.
The confidence regions and hypothesis tests are based on the asymptotic normality.
The methods are sensitive to misspecification of the variance function and the
working correlation structure. Because of such misspecifications, the estimates can
be inefficient and inconsistent, and inference may give incorrect results. To overcome
this problem, we propose an empirical likelihood (EL) procedure based on a set of
estimating equations for the parameter of interest and discuss its characteristics and
asymptotic properties. We also provide an algorithm based on EL principles for the
estimation of the regression parameters and the construction of a confidence region
for the parameter of interest. We extend our approach to variable selection for highdimensional
longitudinal data with many covariates. In this situation it is necessary
to identify a submodel that adequately represents the data. Including redundant
variables may impact the model’s accuracy and efficiency for inference. We propose a
penalized empirical likelihood (PEL) variable selection based on GEEs; the variable
selection and the estimation of the coefficients are carried out simultaneously. We
discuss its characteristics and asymptotic properties, and present an algorithm for optimizing
PEL. Simulation studies show that when the model assumptions are correct,
our method performs as well as existing methods, and when the model is misspecified,
it has clear advantages. We have applied the method to two case examples.


identifier: Lewis, Ronald S. <https://research.library.mun.ca/view/creator_az/Lewis=3ARonald_S=2E=3A=3A.html>   (2015) The autonomous underwater vehicle emergency localization system: an under ice AUV tracking technology for over-the-horizon operations.  Doctoral (PhD) thesis, Memorial University of Newfoundland.

abstract:
There is an inherent risk of loss that accompanies any operations of Autonomous
Underwater Vehicle (AUV) technology. This complexity and risk are increased for
AUV missions that are conducted beneath ice and in harsh environmental conditions
(i.e. extreme cold, compromised visibility, etc.). Risk-based methodologies have been
developed to quantify the risk of loss for specific AUV platforms prior to deployments.
Their goal is to identify and mitigate where possible the significant contributors (technical
or otherwise) to the overall risk of a specific operation. Not surprisingly, there is
an abundant amount of literature related to successful AUV missions; however, there
has been very little published work related to AUV loss. Specifically, this author is
not aware of any examples of a developed procedure to employ during an AUV loss
event to date, much less specific algorithms developed to locate a missing AUV. This
is a subset of the AUV tracking or positioning that is rarely given specific treatment.
The motivating problem is based on the loss event of an AUV during polar
operations. For example, (i) the vehicle might navigate outside of its predefined
spatial area through some fault or error, or, (ii) its mission involves over-the-horizon
operations, i.e. beyond the range of standard acoustical tracking technologies. In
either circumstance, at the end of its pre-programmed mission, the AUV fails to
return to the base station. Such an eventuality defines the need for reliable, long-range
acoustic tracking capability that is able to coarsely localize the AUV and subsequently
enable communications and/or recovery of the AUV.
The thesis describes a novel approach for an acoustic positioning system for
AUV localization in harsh environments with non-standard acoustic challenges that
can be implemented using only basic acoustic technology, a basic single-beacon, singlehydrophone
(SBSH) system. Inversive geometric techniques are applied for source
localization of a one-way traveling, asynchronous acoustic signal. This differs from
the usual methods of spherical, two-way direct flight measurement based on time
of arrival (TOA), or hyperbolic, one-way time difference of arrival (TDOA) target
tracking for transmission based on a purely Euclidean geometry. This is a novel
approach to the problem of localizing an AUV.
A second method of solving the non-linear system of equations that arise from
the problem using the SBSH approach is derived. Both methods, the novel Apollonian
inversion geometry localization (AIGL) and the non linear system localization
(NLSL), are evaluated in simulation and using live field data. It will be shown that the novel algorithm performs comparable to the standard method of solving the nonlinear
systems resulting from a SBSH approach. Furthermore, in certain situations it
improves the localization result.


identifier: Dinn, Sarah Ellen <https://research.library.mun.ca/view/creator_az/Dinn=3ASarah_Ellen=3A=3A.html>   (2016) The expression of Hsf1 in the rat myometrium during pregnancy and labour.  Masters thesis, Memorial University of Newfoundland.

abstract:
Heat shock factor 1 (Hsf1) is a protein known to be involved in both stress and
developmental processes through the regulation of heat shock proteins. However, to date,
no studies have been performed on examining its expression in the myometrium during
pregnancy. During pregnancy, the uterus undergoes many structural and functional
changes, and it also endures both mechanical and hormonal stresses. Therefore, the
purpose of this thesis was to characterize the expression of Hsf1, and its associated
factors in the uterus during pregnancy.
Immunoblot analysis determined that Hsf1 protein expression was high early in
gestation (day (d) 6) and then decreased significantly from mid gestation onwards
(specifically when compared to d15, d17 and d22, p<0.05, n=5). Immunofluorescence
analysis, demonstrated that Hsf1 was readily detectable in the myometrium but did not
markedly change over gestation. Hsf1 was also localized mainly in the cytoplasm of
myometrial cells, with some granular staining in the nucleus. Many related proteins of
Hsf1 were also detectable in the myometrium, during pregnancy, such as PARP-1 and
Hsf2. These results indicate that Hsf1 could play an important role early in gestation
either to aid in myometrial cell proliferation or to upregulate expression of key genes
necessary for subsequent myometrial differentiation.


identifier: Bagheri, Payam <https://research.library.mun.ca/view/creator_az/Bagheri=3APayam=3A=3A.html>   (2016) Structure and dynamics of thin colloidal films.  Masters thesis, Memorial University of Newfoundland.

abstract:
This thesis begins by studying the thickness of evaporative spin coated colloidal crystals
and demonstrates the variation of the thickness as a function of suspension concentration
and spin rate. Particularly, the films are thicker with higher suspension
concentration and lower spin rate. This study also provides evidence for the reproducibility
of spin coating in terms of the thickness of the resulting colloidal films.
These colloidal films, as well as the ones obtained from various other methods such
as convective assembly and dip coating, usually possess a crystalline structure. Due
to the lack of a comprehensive method for characterization of order in colloidal structures,
a procedure is developed for such a characterization in terms of local and longer
range translational and orientational order. Translational measures turn out to be
adequate for characterizing small deviations from perfect order, while orientational
measures are more informative for polycrystalline and highly disordered crystals. Finally,
to obtain an understanding of the relationship between dynamics and structure,
the dynamics of colloids in a quasi-2D suspension as a function of packing fraction is
studied. The tools that are used are mean square displacement (MSD) and the self
part of the van Hove function. The slow down of dynamics is observed as the packing
fraction increases, accompanied with the emergence of 6-fold symmetry within the
system. The dynamics turns out to be non-Gaussian at early times and Gaussian at
later times for packing fractions below 0.6. Above this packing fraction, the dynamics is non-Gaussian at all times. Also the diffusion coefficient is calculated from MSD
and the van Hove function. It goes down as the packing fraction is increased.


identifier: Debnath, Pijush <https://research.library.mun.ca/view/creator_az/Debnath=3APijush=3A=3A.html>   (2016) Centrifuge modeling of oblique pipe-soil interaction in dense and loose sand.  Masters thesis, Memorial University of Newfoundland.

abstract: Due to relative ground movement, buried pipelines experience geotechnical loads. The imposed geotechnical loads may initiate pipeline deformations that affect system serviceability and integrity. Engineering guidelines (e.g., ALA, 2005; Honegger and Nyman, 2001) provide the technical framework to develop idealized structural models to analyze pipe‒soil interaction events and assess pipe mechanical response. The soil behavior is modeled using discrete springs that represent the geotechnical loads per unit pipe length developed during the interaction event. Soil forces are defined along three orthogonal directions (i.e., axial, lateral and vertical) to analyze the response of pipelines. Nonlinear load-displacement relationships of soil defined by a spring, is independent of neighboring spring elements. However, recent experimental and numerical studies demonstrate significant coupling effects during oblique (i.e., not along one of the orthogonal axes) pipe‒soil interaction events. In the present study, physical modeling using a geotechnical centrifuge was conducted to improve the current understanding of soil load coupling effects of buried pipes in loose and dense sand. A section of pipeline, at shallow burial depth, was translated through the soil at different oblique angles in the axial-lateral plane. The force exerted by the soil on pipe is critically examined to assess the significance of load coupling effects and establish a yield envelope. The displacements required to soil yield force are also examined to assess potential coupling in mobilization distance. A set of laboratory tests were conducted on the sand used for centrifuge modeling to find the stress-strain behavior of sand, which was used to examine the possible mechanisms of centrifuge model test. The yield envelope, deformation patterns, and interpreted failure mechanisms obtained from centrifuge modeling are compared with other physical modeling and numerical simulations available in the literature.


identifier: Gonzalez Aguirre, Paola <https://research.library.mun.ca/view/creator_az/Gonzalez_Aguirre=3APaola=3A=3A.html>   (2016) Regulation of Pygopus (hPygo2) expression in prostate cancer by E74-Like factor 1 (Elf-1) transcription factor.  Masters thesis, Memorial University of Newfoundland.

abstract: Prostate cancer is a worldwide health concern. Pygopus2 (hPygo2) protein is required for growth in breast, ovarian, cervical and prostate cancer. hPygo2 expression is regulated by the Rb protein via the ETS factor Elf-1 in cervical and breast cancer. Additionally, the ETS family has confirmed roles in carcinogenesis and proliferation. The mechanism of hPygo2 expression has not been elucidated in prostate cancer. My hypothesis proposes that hPygo2 expression is regulated by Elf-1 bound to its promoter region. Prostate cancer cell lines were used to show protein levels of hPygo2, Elf-1 and ETS. ChIP assays confirmed varying binding capability of Elf-1 and ETS factors to the proximal promoter region between cell lines. Elf-1 knockdown experiments were performed, results show no change in hPygo2 protein levels but show reduction in 22Rv1 mRNA levels. These results suggest that Elf-1 might not be exclusively involved in the activation of Pygopus expression in prostate cancer.


identifier: Yan, Qingyun <https://research.library.mun.ca/view/creator_az/Yan=3AQingyun=3A=3A.html>   (2016) Tsunami simulation and detection using global navigation satellite system reflectometry.  Masters thesis, Memorial University of Newfoundland.

abstract:
In this thesis, research for tsunami remote sensing using the Global Navigation
Satellite System-Reflectometry (GNSS-R) delay-Doppler maps (DDMs) is presented.
Firstly, a process for simulating GNSS-R DDMs of a tsunami-dominated sea sur-
face is described. In this method, the bistatic scattering Zavorotny-Voronovich (Z-V)
model, the sea surface mean square slope model of Cox and Munk, and the tsunami-
induced wind perturbation model are employed. The feasibility of the Cox and Munk
model under a tsunami scenario is examined by comparing the Cox and Munk model-
based scattering coefficient with the Jason-1 measurement. A good consistency be-
tween these two results is obtained with a correlation coefficient of 0.93. After con-
firming the applicability of the Cox and Munk model for a tsunami-dominated sea,
this work provides the simulations of the scattering coefficient distribution and the
corresponding DDMs of a fixed region of interest before and during the tsunami. Fur-
thermore, by subtracting the simulation results that are free of tsunami from those
with presence of tsunami, the tsunami-induced variations in scattering coefficients
and DDMs can be clearly observed.
Secondly, a scheme to detect tsunamis and estimate tsunami parameters from such
tsunami-dominant sea surface DDMs is developed. As a first step, a procedure to de-
termine tsunami-induced sea surface height anomalies (SSHAs) from DDMs is demon-
strated and a tsunami detection precept is proposed. Subsequently, the tsunami
parameters (wave amplitude, direction and speed of propagation, wavelength, and
the tsunami source location) are estimated based upon the detected tsunami-induced
SSHAs. In application, the sea surface scattering coefficients are unambiguously re-
trieved by employing the spatial integration approach (SIA) and the dual-antenna
technique. Next, the effective wind speed distribution can be restored from the scat-
tering coefficients. Assuming all DDMs are of a tsunami-dominated sea surface, the
tsunami-induced SSHAs can be derived with the knowledge of background wind speed
distribution. In addition, the SSHA distribution resulting from the tsunami-free DDM
(which is supposed to be zero) is considered as an error map introduced during the
overall retrieving stage and is utilized to mitigate such errors from influencing sub-
sequent SSHA results. In particular, a tsunami detection procedure is conducted to
judge the SSHAs to be truly tsunami-induced or not through a fitting process, which
makes it possible to decrease the false alarm. After this step, tsunami parameter
estimation is proceeded based upon the fitted results in the former tsunami detec-
tion procedure. Moreover, an additional method is proposed for estimating tsunami
propagation velocity and is believed to be more desirable in real-world scenarios.
The above-mentioned tsunami-dominated sea surface DDM simulation, tsunami
detection precept and parameter estimation have been tested with simulated data
based on the 2004 Sumatra-Andaman tsunami event.


identifier: Neilsen, Scott W. <https://research.library.mun.ca/view/creator_az/Neilsen=3AScott_W=2E=3A=3A.html>   (2016) An archaeological history of Ashuanipi, Labrador.  Doctoral (PhD) thesis, Memorial University of Newfoundland.

abstract:
This dissertation employs an eclectic approach to archaeology, in which
various theories from culture history, processualism, and post-processualism are
used together as aspects of a single approach to archaeological history. This
multifocal methodology is discussed, and used to organize and present the
archaeological survey results from Ashuanipi, a large lake in the Lake Plateau Region
of the Quebec Labrador Peninsula. Questions related to predictive modelling,
cultural resources management, boreal forest ecology, landscape change,
archaeological theory and practice, and Innu history are raised throughout the
process – some of these question are answered, while others are guideposts for
future research.


identifier: Luther, Robert D. <https://research.library.mun.ca/view/creator_az/Luther=3ARobert_D=2E=3A=3A.html>   (2016) Equitably coloured balanced incomplete block designs.  Masters thesis, Memorial University of Newfoundland.

abstract:
In this thesis we determine necessary and sufficient conditions for the existence of an
equitably ℓ-colourable balanced incomplete block design for any positive integer ℓ > 2.
In particular, we present a method for constructing non-trivial equitably ℓ-colourable
BIBDs and prove that these designs are the only non-trivial equitably ℓ-colourable
BIBDs that exist. We also observe that every equitable ℓ-colouring of a BIBD yields
both an equalised ℓ-colouring and a proper 2-colouring of the same BIBD. We also
discuss generalisations of these concepts including open questions for further research.
The main results presented in this thesis also appear in [7].


identifier: Rogers, Robert <https://research.library.mun.ca/view/creator_az/Rogers=3ARobert=3A=3A.html>   (2015) Life history and habitat associations of haddock (Melanogrammus aeglefinus) in Newfoundland waters.  Masters thesis, Memorial University of Newfoundland.

abstract: Many fish stocks are currently facing collapse or overexploitation as well as warming environments. During the 1950s and 1960s, haddock supported a substantial fishery in southern Newfoundland waters, specifically Northwest Atlantic Fisheries Organization (NAFO) Divisions 3LNO and Subdivision 3Ps, but abundance has been comparatively low over the last several decades and there has been no significant fishery in either 3LNO or 3Ps since the late-1950s. The decline in the fishery for haddock coincided with a decline in scientific research on haddock with the last significant research on haddock in Newfoundland waters conducted in the 1950s-1960s. Other haddock stocks have shown major life history changes since the 1980s, including decreased size-at-age and age/length at maturity. In contrast to this, Newfoundland haddock have not shown a significant change in growth or maturity through time. Based on analysis of habitat associations, haddock abundance is expected to increase with recent warming trends as the available optimum habitat for haddock will increase.


identifier: Zeinali Torbati, Reza <https://research.library.mun.ca/view/creator_az/Zeinali_Torbati=3AReza=3A=3A.html>   (2015) Volume averaging of multiphase flows with hydrate formation in subsea pipelines.  Masters thesis, Memorial University of Newfoundland.

abstract:
In oil and gas pipeline operations, the gas, oil, and water phases simultaneously move through pipe systems. The mixture cools as it flows through subsea pipelines, and forms a hydrate formation region, where the hydrate crystals start to grow and may eventually block the pipeline. The potential of pipe blockage due to hydrate formation is one of the most significant flow-assurance problems in deep-water subsea operations. Due to the catastrophic safety and economic implications of hydrate blockage, it is important to accurately predict the simultaneous flow of gas, water, and hydrate particles in flowlines. Currently, there are few or no studies that account for the simultaneous effects of hydrate growth and heat transfer on flow characteristics within pipelines.
This thesis presents new and more accurate predictive models of multiphase flows in undersea pipelines to describe the simultaneous flow of gas, water, and hydrate particles through a pipeline. A growth rate model for the hydrate phase is presented and then used in the development of a new three-phase model. The conservation equations of mass, momentum, and energy are formulated to describe the physical phenomena of momentum and heat transfer between the fluid and the wall. The governing equations are solved based on an analytical-numerical approach using a Newton-Raphson method for the nonlinear equations. An algorithm was developed in Matlab software to solve the equations from the inlet to the outlet of the pipeline. The developed models are validated against a single-phase model with mixture properties, and the results of comparative studies show close agreement.
The new model predicts the volume fraction and velocity of each phase, as well as the mixture pressure and temperature profiles along the length of the pipeline. The results from the hydrate growth model reveal the growth rate and location where the initial hydrates start to form. Finally, to assess the impact of certain parameters on the flow characteristics, parametric studies have been conducted. The results show the effect of a variation in the pipe diameter, mass flow rate, inlet pressure, and inlet temperature on the flow characteristics and hydrate growth rates.


identifier: Bhattacharya, Sriya <https://research.library.mun.ca/view/creator_az/Bhattacharya=3ASriya=3A=3A.html>   (2016) A histone deacetylase inhibitor, trichostatin-A, induces odor preference memory extension and maintains enhanced AMPA receptor expression in the rat pup model.  Masters thesis, Memorial University of Newfoundland.

abstract:
Histone deacetylase (HDAC) plays a role in synaptic plasticity and long-term memory
formation. I hypothesized that trichostatin-A (TSA), an HDAC inhibitor, would promote long-term
odor preference memory and maintain enhanced GluA1 receptor levels that might support memory. I
used an early odor preference learning model in neonate rat pups to test behavior and examine
receptor protein expression. My behavioral studies showed that intrabulbar infusion of TSA, prior
to pairing of the conditioned stimulus (peppermint odor) with the unconditioned stimulus (tactile
stimulation), prolonged odor preference memory for at least nine days. Western blot analysis showed
that GluA1 receptor membrane expression in the olfactory bulbs of TSA-treated pups was
significantly increased at 48 h. Immunohistochemistry revealed significant increase of GluA1
expression in olfactory bulb glomeruli five days after training. These results support evidence for
a relationship between enhanced GluA1 receptor expression and memory. These findings will permit
further exploration of mechanisms which induce and maintain memories.


identifier: Green, Samantha <https://research.library.mun.ca/view/creator_az/Green=3ASamantha=3A=3A.html>   (2015) The diet and influence of the spionid polychaete Marenzelleria on benthic communities in coastal Newfoundland.  Masters thesis, Memorial University of Newfoundland.

abstract:
Spionid polychaetes within the genus Marenzelleria are common inhabitants of
organically enriched sediments in the Northern hemisphere. The species M. viridis has
unique ventilation behaviors that create dynamic, fluctuating oxygen conditions in
sediments, enhancing sulfate reduction. These behaviours may have negative effects on
other macrofauna and positive effects on sulfur bacteria. A Marenzelleria species recently
sampled in Newfoundland is here identified as M. viridis, and its abundance correlates
little with abiotic factors and macrofaunal community composition at examined sites.
Various types of surrounding sediments (oxic and suboxic as well as M. viridis burrow
linings) contained surprisingly similar total prokaryotic, sulfate reducing and sulfur
oxidizing bacteria numbers. The high abundance of sedimentary prokaryotes, combined
with the stable isotopic composition of M. viridis tissues and lack of obvious symbionts,
suggest that, thanks to its ventilation behaviour, this species may “farm” sulfur bacteria in
sediments and use them as a primary food source.


identifier: Gunasekaran Gnanam, Sharmila Dhevi <https://research.library.mun.ca/view/creator_az/Gunasekaran_Gnanam=3ASharmila_Dhevi=3A=3A.html>   (2015) Some near horizon studies onWeyl and Vaidya spacetimes.  Masters thesis, Memorial University of Newfoundland.

abstract:
This thesis comprises some studies on the Weyl, Vaidya and Weyl distorted Schwarzschild
(WDS) spacetimes. The main focal areas are : a) construction of near horizon metric(NHM)
for WDS spacetime and subsequently a "stretched horizon" prescribed by the membrane
formalism for black holes, b) application of membrane formalism and construction of
stretched horizons for Vaidya spacetime and c) using the thin shell formalism to construct an
asymptotically flat spacetime with a Weyl interior where the construction does not violate
energy conditions. For a), a standard formalism developed in [1] has been used wherein
the metric is expanded as a Taylor series in ingoing Gaussian null coordinates with the
affine parameter as the expansion parameter. This expansion is used to construct a timelike
"stretched horizon" just outside the true horizon to facilitate some membrane formalism
studies, the theory for which was first introduced in [2]. b) applies the membrane formalism
to Vaidya spacetime and also extends a part of the work done in [1] in which event
horizon candidates were located perturbatively. Here, we locate stretched horizons in close
proximity to every event horizon candidate located in [1]. c) is an attempt to induce Weyl
distortions with a thin shell of matter in an asymptotically flat spacetime without violating
energy conditions.


identifier: Pellowe, Sarita D. <https://research.library.mun.ca/view/creator_az/Pellowe=3ASarita_D=2E=3A=3A.html>   (2015) Temperature-related differences in the calcium transient between Atlantic cod (Gadus morhua) and steelhead trout (Oncorhynchus mykiss) cardiomyocytes.  Masters thesis, Memorial University of Newfoundland.

abstract: The Atlantic cod, Gadus morhua, differs from many teleosts in that its heart does not respond to adrenergic stimulation, and is more capable of maintaining function during acute temperature changes. To examine if differences in intracellular calcium mobilization are associated with these atypical responses, confocal microscopy was used to study the calcium handling of cardiac cells from Atlantic cod vs. steelhead trout at their acclimation temperature (10ºC), or subjected to acute temperature changes (to 4 and 16ºC), while being stimulated across a range of frequencies (10 – 110 min⁻¹). In addition, cells were tested with and without tonic (10 nM) levels of adrenaline at 10ºC, and pharmacological blockers were used to study the relative contributions of the L-type Ca²⁺ channel, sarcoplasmic reticulum and Na+/Ca²⁺ exchanger to the Ca²⁺ transient. Consistent with previous in vitro and in situ studies, there were few significant effects of adrenaline on the Ca²⁺ transient of cod cardiomyocytes, yet adrenaline had significant positive inotropic effects on trout cardiomyocytes. At 10ºC, peak Ca²⁺ (F/F₀) only differed between the two species at low stimulation frequencies (10, 30 min-1), with trout F/F₀ 25-35% higher. In contrast, the time to peak Ca²⁺ and the time to half relaxation were both shorter (by 10 – 35% across frequencies) in cod. Acute temperature changes caused a shift in the Ca²⁺ - frequency relationship in both species, with F/F₀ values higher for trout at low frequencies (< 70 min⁻¹) at 4ºC, whereas this parameter was greater at all frequencies except 10 min⁻¹ in cod at 16ºC. Unfortunately, these experiments did not highlight clear species differences in the relative contributions of the L-type Ca²⁺ channels, sarcoplasmic reticulum and Na+/Ca²⁺ exchange to the Ca²⁺ transient.


identifier: Doyle, Susan <https://research.library.mun.ca/view/creator_az/Doyle=3ASusan=3A=3A.html>   (2016) Child anxiety, resiliency, and the FRIENDS for Life program.  Masters thesis, Memorial University of Newfoundland.

abstract:
Anxiety disorders are the most commonly diagnosed group of mental
disorders in children (Kessler et al., 2012). Resiliency, defined as a child’s
ability to successfully overcome an adverse event (Newland, 2014) is believed
to be comprised of protective factors such as self-esteem and positive coping
strategies (Rutter, 1987). These protective factors are related to child anxiety
in that their presence or absence may augment or hinder a child’s resiliency
towards anxiety-provoking events and situations (Lo Casico, Guzzo, & Pace,
2013; Thorne, Andrews, & Nordstokke, 2013). The FRIENDS for Life (FFL)
program is a school-based anxiety prevention program which aims to decrease
anxiety and increase resiliency in 8- to 11-year-old children (Barrett &
Sonderegger, 2003). Previous studies have shown FFL to be an effective tool
in decreasing anxiety and increasing resiliency; however, not all previous
studies have utilized control or comparison groups (Brownlee et al., 2013;
Neil & Christensen 2007; Stopa, Barrett, & Golingi, 2011). Moreover,
existing FRIENDS literature has not previously considered the potential role
of parent anxiety in child outcomes. The present study aimed to evaluate child
anxiety, resiliency, and parent anxiety in relation to the FFL program while
including a no-treatment control group. It was hypothesized that child anxiety
would decrease and child resiliency would increase following FFL. Results
obtained from a non-identified school-based sample were not entirely
consistent with predictions, such that decreases in anxiety and increases in
resiliency were observed in both the experimental and control groups.


identifier: Kar, Shantanu <https://research.library.mun.ca/view/creator_az/Kar=3AShantanu=3A=3A.html>   (2016) Submarine slope failures in gassy soils.  Masters thesis, Memorial University of Newfoundland.

title: Submarine slope failures in gassy soils

abstract:
Submarine slope stability has become an important concern and a subject of research with
increasing demand for offshore developments and technological advancement for harsh and
challenging environments. The consequences of submarine slope failure adjacent to oil and
gas facilities would have a large financial, safety and regulatory impact. This current
research work investigates potential failure of submarine gassy slopes triggered by tidal
variations. Due to tidal variations, failure of an unsaturated slope may occur under specific
combinations of increasing degree of saturation and soil permeability, and decreasing tidal
period. Novel physical model tests in a geotechnical centrifuge were undertaken to examine
submarine slope failure mechanisms containing gassy sediments. The model preparation
techniques, measurement systems and results are presented. The response observed in the
model test is discussed and further developments proposed. The buried PPT’s response of
the submarine slope are comparable in terms of attenuation and phase lag with Nagaswaran
(1983) and with field measurements of Atigh and Byrne (2004) in terms of phase lag.


identifier: Mohammadafzali, Soroosh <https://research.library.mun.ca/view/creator_az/Mohammadafzali=3ASoroosh=3A=3A.html>   (2016) A mathematical model for the maneuvering simulation of a propelled SPAR vessel.  Masters thesis, Memorial University of Newfoundland.

abstract:
To predict the maneuvering performance of a propelled SPAR vessel, a mathematical model was established as a path simulator. A system-based mathematical model was chosen as it offers advantages in cost and time over full Computational Fluid Dynamics (CFD) simulations. The model is intended to provide a means of optimizing the maneuvering performance of this new vessel type.
In this study the hydrodynamic forces and control forces are investigated as individual components, combined in a vectorial setting, and transferred to a body-fixed basis. SPAR vessels are known to be very sensitive to large amplitude motions during maneuvers due to the relatively small hydrostatic restoring forces. Previous model tests of SPAR vessels have shown significant roll and pitch amplitudes, especially during course change maneuvers. Thus, a full 6 DOF equation of motion was employed in the current numerical model.
The mathematical model employed in this study was a combination of the model introduced by the Maneuvering Modeling Group (MMG) and the Abkowitz (1964) model. The new model represents the forces applied to the ship hull, the propeller forces and the rudder forces independently, as proposed by the MMG, but uses a 6DOF equation of motion introduced by Abkowitz to describe the motion of a maneuvering ship.
The mathematical model was used to simulate the trajectory and motions of the propelled SPAR vessel in 10˚/10˚, 20˚/20˚ and 30˚/30˚ standard zig-zag maneuvers, as well as turning circle tests at rudder angles of 20˚ and 30˚. The simulation results were used to determine the maneuverability parameters (e.g. advance, transfer and tactical diameter) of the vessel. The final model provides the means of predicting and assessing the performance of the vessel type and can be easily adapted to specific vessel configurations based on the generic SPAR-type vessel used in this study.


identifier: Brueckner, Stefanie M. <https://research.library.mun.ca/view/creator_az/Brueckner=3AStefanie_M=2E=3A=3A.html>   (2016) Mineralogy, mineral chemistry, and genesis of precious metal-bearing volcanogenic massive sulfide deposits in the Newfoundland Appalachians, Canada: the Ming deposit as example.  Doctoral (PhD) thesis, Memorial University of Newfoundland.

abstract:
The Ming deposit, Newfoundland Appalachians, is a metamorphosed
(upper greenschist to lower amphibolite facies), Cambro-Ordovician, bimodalmafic
volcanogenic massive sulfide (VMS) deposit that consists of several,
spatially-associated, elongated orebodies composed of stratabound semimassive
to massive sulfides and/or discordant sulfide stringers in a rhyodacitic
footwall. Copper is the main commodity; however, the deposit contains precious
metal-bearing zones with elevated Au grades.
In this study, field observations, microscopy, and micro-analytical tools
including electron microprobe, laser ablation inductively coupled plasma mass
spectrometry, and secondary ion mass spectrometry were used to constrain the
relative timing of precious metal emplacement, the physico-chemical conditions
of hydrothermal fluid precipitation, and the sources of sulfur, precious metals,
semi-metals and metals.
The ore mineral assemblage is complex and indicates an intermediate
sulfidation state. Pyrite and chalcopyrite are the dominant ore minerals with minor
sphalerite and pyrrhotite, and trace galena, arsenopyrite and cubanite. Additional
trace phases include tellurides, NiSb phases, sulfosalts, electrum, AgHg±Au
alloys, and oxides. Silver phases and precious metals occur predominantly in
semi-massive and massive sulfides as free grains, and as grains spatially
associated with arsenopyrite and/or sulfosalts. Precious metal phases occurring
between recrystallized pyrite and within cataclastic pyrite are rare. Hence, the complex ore assemblage and textures strongly suggest syngenetic precious
metal emplacement, whereas metamorphism and deformation only internally and
locally remobilized precious metal phases.
The ore assemblage formed from reduced, acidic hydrothermal fluids over
a range of temperatures (≈350 to below 260ºC). The abundance of telluride and
Ag-bearing tetrahedrite, however, varies strongly between the different orebodies
indicating variable ƒTe₂, ƒSe₂, mBi, and mSb within the hydrothermal fluids. The
variations in the concentrations of semi-metals and metals (As, Bi, Hg, Sb, Se,
Te), as well as Au and Ag, were due to variations in temperature but also to a
likely contribution of magmatic fluids into the VMS hydrothermal system from
presumably different geothermal reservoirs.
Sulfur isotope studies indicate at least two sulfur sources: sulfur from
thermochemically-reduced seawater sulfate and igneous sulfur. The source of
igneous sulfur is the igneous footwall, direct magmatic fluid/volatiles, or both.
Upper greenschist to lower amphibolite metamorphic conditions and deformation
had no significant effect on the sulfur isotope composition of the sulfides at the
Ming deposit.


identifier: Razavi, S. Masood <https://research.library.mun.ca/view/creator_az/Razavi=3AS=2E_Masood=3A=3A.html>   (2016) Advanced thermal analysis of microelectronics using spreading resistance models.  Doctoral (PhD) thesis, Memorial University of Newfoundland.

abstract:
Thermal analysis of electronic devices is one of the most important steps for designing
of modern devices. Precise thermal analysis is essential for designing an effective thermal
management system of modern electronic devices such as batteries, LEDs, microelectronics,
ICs, circuit boards, semiconductors and heat spreaders. For having a precise
thermal analysis, the temperature profile and thermal spreading resistance of the device
should be calculated by considering the geometry, property and boundary conditions. Thermal
spreading resistance occurs when heat enters through a portion of a surface and flows
by conduction. It is the primary source of thermal resistance when heat flows from a tiny
heat source to a thin and wide heat spreader. In this thesis, analytical models for modeling
the temperature behavior and thermal resistance in some common geometries of microelectronic
devices such as heat channels and heat tubes are investigated. Different boundary
conditions for the system are considered. Along the source plane, a combination of
discretely specified heat flux, specified temperatures and adiabatic condition are studied.
Along the walls of the system, adiabatic or convective cooling boundary conditions are
assumed. Along the sink plane, convective cooling with constant or variable heat transfer
coefficient are considered. Also, the effect of orthotropic properties is discussed. This
thesis contains nine chapters. Chapter one is the introduction and shows the concepts of
thermal spreading resistance besides the originality and importance of the work. Chapter
two reviews the literatures on the thermal spreading resistance in the past fifty years with a focus on the recent advances. In chapters three and four, thermal resistance of a twodimensional
flux channel with non-uniform convection coefficient in the heat sink plane is
studied. The non-uniform convection is modeled by using two functions than can simulate
a wide variety of different heat sink configurations. In chapter five, a non-symmetrical flux
channel with different heat transfer coefficient along the right and left edges and sink plane
is analytically modeled. Due to the edge cooling and non-symmetry, the eigenvalues of
the system are defined using the heat transfer coefficient on both edges and for satisfying
the orthogonality condition, a normalized function is calculated. In chapter six, thermal
behavior of two-dimensional rectangular flux channel with arbitrary boundary conditions
on the source plane is presented. The boundary condition along the source plane can be
a combination of the first kind boundary condition (Dirichlet or prescribed temperature)
and the second kind boundary condition (Neumann or prescribed heat flux). The proposed
solution can be used for modeling the flux channels with numerous different source plane
boundary conditions without any limitations in the number and position of heat sources. In
chapter seven, temperature profile of a circular flux tube with discretely specified boundary
conditions along the source plane is presented. Also, the effect of orthotropic properties are
discussed. In chapter 8, a three-dimensional rectangular flux channel with a non-uniform
heat convection along the heat sink plane is analytically modeled. In chapter nine, a summary
of the achievements is presented and some systems are proposed for the future studies.
It is worth mentioning that all the models and case studies in the thesis are compared with
the Finite Element Method (FEM).


identifier: Tuziak, Sarah <https://research.library.mun.ca/view/creator_az/Tuziak=3ASarah=3A=3A.html>   (2016) The influence of nutritional status and environmental factors on growth, feeding behaviour and appetite-related peptide transcript expression in Atlantic cod (Gadus morhua).  Doctoral (PhD) thesis, Memorial University of Newfoundland.

abstract:
Appetite regulation and energy homeostasis are critical processes for vertebrate
survival that are regulated by neuroendocrine mechanisms. Understanding how appetiteregulating
hormones are influenced by intrinsic and extrinsic cues is essential for the
comprehension of how vertebrates maintain an appropriate energy balance. This thesis
focuses on some important appetite regulators [melanin-concentrating hormone (MCH),
orexin, neuropeptide Y (NPY), gonadotrophin-releasing hormone (GnRH) and cocaineand
amphetamine-regulated transcript (CART)] in a commercially important fish species,
Atlantic cod (Gadus morhua). To begin my analyses of these important appetiteregulating
hormones in cod, I identified for the first time cDNA sequences for MCH and
GnRH mRNAs, while orexin, NPY and CART transcripts were previously isolated in
cod. MCH and GnRH hormones were shown to be expressed in regions of the brain and
peripheral tissues (i.e. gastrointestinal tract) related to food intake regulation. MCH, but
not GnRHs, transcript expression was higher in fed compared with fasted fish, indicating
that MCH may play an important role in appetite regulation in cod. Then, I examined how
diet (i.e. plant-based feed, Camelina sativa) and environment (i.e. background colour)
influence feeding behaviour and appetite-related peptide transcript expression. Camelina
meal-supplemented feed reduced food intake and growth, and increased orexigenic
peptide mRNA expression (i.e. MCH, orexin and NPY), but did not affect CART
expression, suggesting fish are still “hungry” and that MCH, orexin and NPY peptides
could be involved in other feeding behaviours and metabolic processes, such as nutrient
sensing and food searching behaviour. Finally, I addressed the effects of background colour and fasting on Atlantic cod feeding and swimming behaviour, as well as appetiterelated
transcript expression. Atlantic cod subjected to fasting and different background
colours displayed reduced locomotion. Furthermore, a decrease in MCH and orexin
mRNA expressions in fasted fish was observed and might possibly be correlated to a
reduction in locomotion and feeding activity rather than indicative of anorexigenic
effects. Finally, fasted fish had paler skin colour compared to fed fish in white
backgrounds. These results suggest that MCH, orexin and NPY may play important roles
in various appetite-related behaviours and physiological processes, whereas CART and
GnRH may not have significant roles in food intake regulation in Atlantic cod.
Understanding feeding regulation and how various cues can influence food intake is
fundamental for the development of sustainable aquaculture industries.


identifier: Lode, Stefanie <https://research.library.mun.ca/view/creator_az/Lode=3AStefanie=3A=3A.html>   (2016) Role of metalliferous mudstones and graphitic shales in the location, genesis, and paleoenvironment.  Doctoral (PhD) thesis, Memorial University of Newfoundland.

abstract:
The Cambrian Tally Pond volcanic belt in central Newfoundland contains numerous volcanogenic massive sulphide (VMS) deposits, prospects, and showings that are locally associated with metalliferous mudstones and/or graphitic shales. Deposits in the belt are bimodal felsic-type VMS that are both base metal- (e.g., Duck Pond, Boundary) and precious metal-enriched (e.g., Lemarchant). At the Lemarchant deposit metalliferous mudstones are genetically and spatially associated with mineralization, whereas the relationship of other mudstones and shales to massive sulphide mineralization is more intricate and remains not fully understood.
Metalliferous mudstones represent a hiatus in the volcanic activity where the deposition of hydrothermal products dominated over the abiogenic background sedimentation and/or dilution by volcaniclastic-epiclastic material. Lithogeochemical signatures allow one to distinguish between predominantly hydrothermally or detritally (i.e., non-hydrothermal) derived material. Metalliferous mudstones with a significant hydrothermal component, like those at Lemarchant, have elevated Fe/Al and base-metal contents, compared to detrital shales, and shale-normalized negative Ce and positive Eu anomalies, indicative of deposition from high temperature (>250°C) hydrothermal fluids within an oxygenated water column. Mudstones and shales sampled from other locations in the Tally Pond volcanic belt have more variable signatures ranging from hydrothermal (signatures as above) to non-hydrothermal (no positive Eu-anomalies, flat REE patterns), with some that have mixed (hydrothermal and detrital) signatures. Both S and Pb isotopic compositions indicate that proximal sulphides hosted in mudstones immediately associated with massive sulphide mineralization within the Lemarchant deposit contain a higher proportion of sulphur derived from hydrothermal sources and processes, and have more juvenile lead contributions, when compared to sulphides distal (not associated with massive sulphides) from mineralization. Lead and Nd isotopic compositions of both whole rock and minerals in the Lemarchant mudstones indicate involvement of underlying crustal basement during massive sulphide formation and throughout the evolution of the Tally Pond belt.
Metalliferous mudstones precipitated early in the massive sulphide depositional history, but also have undergone syn- and post-ore-forming processes and have a larger lateral extent than the mineralization. Using lithogeochemistry, whole rock and in situ stable and radiogenic isotopes it is possible to distinguish prospective vent proximal (immediately associated with massive sulphide mineralization) from less prospective distal (not associated with massive sulphides) depositional environments and to reconstruct the paleotectonic setting on a deposit- to regional-scale for the Lemarchant deposit and other mudstone-associated prospects in the Tally Pond volcanic belt.


identifier: Boyd, Christopher <https://research.library.mun.ca/view/creator_az/Boyd=3AChristopher=3A=3A.html>   (2016) Three-dimensional tomographic reconstruction of an exceptionally well preserved ichnological assemblage from the Stainmore Foundation, Carboniferous, UK.  Doctoral (PhD) thesis, Memorial University of Newfoundland.

abstract:
This Ph.D. thesis addresses current issues with ichnotaxonomic practice, and characterizes an exceptionally well preserved ichnological assemblage from the Carboniferous Stainmore Formation, Northumberland, United Kingdom. Samples were collected from closely localized float representative of various units throughout the succession, which was deposited in a storm-dominated marine shoreface. Three dominant ichnotaxa were selected for three-dimensional morphological analysis due to their complicated morphology and/or unclear taxonomic status: 1) Dactyloidites jordii isp. nov.; 2) Beaconites capronus, and; 3) Neoeione moniliformis comb. nov. Using serial grinding and photography, these ichnotaxa were ground and modelled in true colour.
High-resolution models of three taxa produced in this study are the basis of the first complete three-dimensional consideration of the traces, and forms the basis for refined palaeobiological and ethological analysis of these taxa. Dactyloidites jordii isp. nov. is a stellate to palmate burrow composed of numerous long, narrow rays that exhibit three orders of branching arranged into tiered galleries radiating from a central shaft. It is considered to be the feeding structure produced by a vermiform organism. Beaconites capronus is a winding trace with distinctly chevron-shaped, meniscate backfill demonstrated herein to backfill the vertical shafts associated with its burrows in a comparable fashion to the horizontal portion of the burrow. This lack of a surface connection would result in the trace making organism being exposed to low-oxygen porewater. Coping with this porewater dysoxia could be approached by burrowing organisms in a number of ways: 1) revisiting the sediment-water interface; 2) creating periodic shafts; or 3) employing anaerobic metabolism. Neoeione moniliformis was originally introduced as Eione moniliformis, however, the genus Eione Tate, 1859 is a junior homonym of Eione Rafinesque, 1814. This led to the transfer of Eione moniliformis to Parataenidium. Through careful examination and three-dimensional characterization of topotypes, the transfer to Parataenidium moniliformis is demonstrated herein to be problematic, as Parataenidium refers to primarily horizontal burrows with two distinct layers and Eione moniliformis is composed of one distinct level. As such, the new ichnogenus Neoeione is created to accommodate Neoeione moniliformis.


identifier: Randell, Amy <https://research.library.mun.ca/view/creator_az/Randell=3AAmy=3A=3A.html>   (2016) Cerebrovascular dysfunction in the presence of chronic inflammation.  Masters thesis, Memorial University of Newfoundland.

abstract: Background: Patients with autoimmune disease have increased incidence of stroke. Hemorrhagic stroke (HS) is associated with loss of cerebrovascular function, leading to micro-vessel burst, and hemorrhage. We believe chronic inflammation is involved in loss of cerebrovascular function and HS. We established a hypertensive-arthritis model in spontaneously hypertensive rats (SHR) fed either standard rodent diet (0.59% NaCl) (RD) or high salt diet (4% NaCl) (HSD) and compared them to non-inflamed SHR. Methods: Complete Freund’s adjuvant (CFA) was injected into the left paw to induce mono-arthritis. Blood pressure and inflammation was monitored. At endpoint, animals were sacrificed and evaluated for HS while middle cerebral artery (MCA) was isolated for functional studies. Results: HS was observed in 90% of CFA-treated groups. The MCA of arthritic RD-SHR exhibited decreased ability to undergo pressure dependent constriction (PDC). All HSD-SHR showed a decreased response to PDC. However, arthritic HSD-SHR also demonstrated a diminished response to vasoactive peptides. Conclusion: HS occurring with CFA injection corresponds with loss of MCA function. Chronic HSD appears to further exacerbate vascular dysfunction in the MCA.


identifier: Powell, Amy E. <https://research.library.mun.ca/view/creator_az/Powell=3AAmy_E=2E=3A=3A.html>   (2016) Whole exome sequencing analysis of intracranial aneurysm in multiplex families from Newfoundland and Labrador.  Masters thesis, Memorial University of Newfoundland.

abstract: Intracranial aneurysm (IA) is a vascular condition characterized as a saccular dilatation of the cerebral artery wall. The purpose of this study was to identify genetic variants that cause susceptibility to IA in two multiplex families from Newfoundland and Labrador. Whole exome sequencing was completed for 12 affected individuals from families R1352 and R1256. A filtering strategy was then implemented to identify and prioritize rare variants that were shared by multiple affected family members. In family R1352, two variants were identified as top candidates: C4orf6 c.1A>G, and GIGYF2 c.3494A>G. Both were present in 6/7 exomes from the family, and passed all filtering steps. In family R1256, SPDYE4 c.103C>T was identified as a variant of interest, as it segregated in 10/11 affected individuals. Though each variant exhibited incomplete segregation, all three were absent from 100 local population controls. The absence of a definitive candidate variant in the exome suggests that further study is necessary to gain better understanding of the genetic etiology of this disease.


identifier: Feltham, Bradley A. <https://research.library.mun.ca/view/creator_az/Feltham=3ABradley_A=2E=3A=3A.html>   (2015) The effects of dietary omega-3 fatty acids on brain function are sex, age and brain-region specific.  Masters thesis, Memorial University of Newfoundland.

abstract:
Omega (n)-3 polyunsaturated fatty acids (PUFA) have beneficial effects in
neuropsychiatric illnesses. The goals of this thesis were to determine the effects of
feeding diets varying in n-3 PUFA on brain fatty acid composition, and neurotrophin and
myelin-related gene expression of the brain in an age, sex, and region-specific manner. A
diet high in n-3 PUFA altered phospholipid docosahexaenoic acid (DHA) and oleic acid
composition in an age, sex, and region-specific manner. Diet had no effect on the mRNA
expression of brain-derived neurotrophic factor (BDNF) and tropomyosin-receptor
kinase-B (TrkB); however, stearoyl-CoA desaturase-1 (SCD1) and myelin basic protein
(MBP) gene expression increased in offspring fed a diet high in n-3 PUFA in an age, sex,
and region-specific manner. DHA treatment to ex vivo cerebral cortical cells showed an
increase in BDNF, TrkB, SCD1, and MBP mRNA expression compared to control cells.
The mRNA expression of BDNF and SCD1 was higher in DHA treated cells compared to
arachidonic acid treated cells. Overall, the data presented in this thesis suggests that the
potential benefits of n-3 PUFA on brain function are sex, age and brain-region specific.


identifier: Younis, Corrine L. <https://research.library.mun.ca/view/creator_az/Younis=3ACorrine_L=2E=3A=3A.html>   (2016) Solution-focused practices in child welfare supervision.  Masters thesis, Memorial University of Newfoundland.

abstract: This research was an exploratory pilot study on the use and need of solution-focused practices in supervision according to child welfare workers and child welfare supervisors in Nova Scotia, Canada. Child welfare workers and supervisors were invited to participate in an online questionnaire exploring the use and need of solution-focused practices in child welfare supervision. The collected data indicated that these practices were being implemented and that workers and supervisors believe there is a need for them. Further research and training on solution-focused practices in the supervision of child welfare workers could be beneficial to help create the most productive supervision experience that positively impacts everyone involved.


identifier: Hawkins, Catherine Margaret <https://research.library.mun.ca/view/creator_az/Hawkins=3ACatherine_Margaret=3A=3A.html>   (2016) Surrey-Hampshire border ware ceramics in seventeenth-century English North America.  Masters thesis, Memorial University of Newfoundland.

abstract: During the sixteenth and seventeenth centuries, Surrey-Hampshire Border ware ceramics were among of the most popular and widely used ceramics in southern England. This ceramic, produced along the Surrey-Hampshire border, was also shipped to English colonies in North America throughout the seventeenth century. This thesis will explore the types of vessels uncovered on archaeological sites in Newfoundland, New England and the Chesapeake, and examine the similarities and differences in the forms available to various colonists during this time period. By comparing the collections of Border ware found at various sites it is possible to not only determine what vessel forms are present in Northeastern English North America, but to determine the similarities and differences in vessels based on temporal, geographic, social or economic factors. A comparative study of Border ware also provides information on the socio-economic status of the colonists and on trading networks between England and North America during the seventeenth century.


identifier: Swett, Christina <https://research.library.mun.ca/view/creator_az/Swett=3AChristina=3A=3A.html>   (2016) The socialization of teachers who teach young students experiencing physical disability in physical education.  Masters thesis, Memorial University of Newfoundland.

abstract: The purpose of this study was to explore the socialization of teachers in physical education, with a focus on their experiences of teaching and learning to teach children living with physical disabilities. Data were collected using qualitative interviews and through analysis of program calendars for publicly-funded institutions offering pre-service teacher education programs. Despite being largely viewed as the least effective form of socialization, pre-service teacher education has the potential to influence a teacher’s confidence and performance in the classroom. Results of this study indicate that the socialization experiences of teachers continue to be strong indicators of performance, and that both specialist and generalist teachers lack positive socialization experiences that include students with physical disabilities in physical education. This limits the experience, knowledge and skills they have to draw on in their physical education teaching practice. Coupled with a lack of resources and expertise available, teachers are left under-prepared and without enough resources to provide high quality physical education to children living with physical disabilities.


identifier: Herath, Dinesh Bandara <https://research.library.mun.ca/view/creator_az/Herath=3ADinesh_Bandara=3A=3A.html>   (2016) A probabilistic approach to assess hydrate formation and design preventive measures.  Masters thesis, Memorial University of Newfoundland.

abstract: Formation of hydrates is one of the major flow assurance problems faced by the oil and gas industry. Hydrates tend to form in natural gas pipelines with the presence of water and favorable temperature and pressure conditions, generally low temperatures and corresponding high pressures. Agglomeration of hydrates can result in blockage of flowlines and equipment, which can be time consuming to remove in subsea equipment and cause safety issues. Natural gas pipelines are more susceptible to burst and explosion owing to hydrate plugging. Therefore, a rigorous risk-assessment related to hydrate formation is required, which assists in preventing hydrate blockage and ensuring equipment integrity. This thesis presents a novel methodology to assess the probability of hydrate formation and presents a risk-based approach to determine the parameters of winterization schemes to avoid hydrate formation in natural gas pipelines operating in Arctic conditions. It also presents a lab-scale multiphase flow loop to study the effects of geometric and hydrodynamic parameters on hydrate formation and discusses the effects of geometric and hydrodynamic parameters on multiphase development length of a pipeline. Therefore, this study substantially contributes to the assessment of probability of hydrate formation and the decision making process of winterization strategies to prevent hydrate formation in Arctic conditions.


identifier: Frey, Desta L. <https://research.library.mun.ca/view/creator_az/Frey=3ADesta_L=2E=3A=3A.html>   (2016) Environmental and biological drivers of feeding and spatial dynamics in the green sea urchin, Strongylocentrotus droebachiensis.  Masters thesis, Memorial University of Newfoundland.

abstract: In eastern Canada, the destruction of foundational kelp beds by dense aggregations (fronts) of the omnivorous green sea urchin, Strongylocentrotus droebachiensis, is a key determinant of the structure and dynamics of shallow reef communities. Current knowledge about factors affecting the ability of S. droebachiensis to exert top-down community control is based largely on observational studies of patterns in natural habitats, yielding fragmentary, and sometimes contradictory, results. The present research incorporated laboratory microcosm experiments and surveys of urchins in natural habitats to test the effects of abiotic (wave action, water temperature) and biotic (body size, population density) factors on: (1) individual and aggregative feeding on the winged kelp, Alaria esculenta; and (2) displacement, microhabitat use, distribution, and aggregation in food-depleted habitats. Wave action, water temperature, and body size strongly affected the ability of urchins to consume kelp: individual feeding increased with increasing body size and temperature, while aggregative feeding decreased with increasing wave action. Yet, feeding in large urchins dropped by two orders of magnitude between 12 and 18°C. Increasing wave action triggered shifts in urchin displacement, microhabitat use, distribution, and aggregation: urchins reduced displacement and abandoned flat surfaces in favour of crevices. They increasingly formed two-dimensional aggregations at densities ≥110 individuals m⁻². Collectively, results provide a foundational understanding of some of the drivers of feeding and spatial dynamics of S. droebachiensis and potential impacts on the formation of grazing fronts.


identifier: Noseworthy, Dana M. <https://research.library.mun.ca/view/creator_az/Noseworthy=3ADana_M=2E=3A=3A.html>   (2016) Exploring the stages of change and perceived barriers to treatment models within the context of parental adherence to an early intervention program.  Masters thesis, Memorial University of Newfoundland.

abstract: Parent-mediated early intervention programs depend on the willingness and ability of parents to complete prescribed activities with their children. In other contexts, internal factors, such as stages of change, and external factors, such as barriers to treatment, have been shown to correlate with adherence to service. This researcher modified the Stages of Change Questionnaire as well as the Barriers to Treatment Participation Scale (BTPS) to use with this population. Despite initial interest, twenty-three parent participants were referred to the researcher over the course of three years, with only five parents taking part in the study. A population base ten times that of the current sample would be required recruit enough participants (fifty-one) to provide sufficient power. This feasibility study discusses the results of the five parent participants. Findings suggest that the modified Stages of Change Questionnaire may not be sensitive enough for use with the current sample, while the modified BTPS may yield useful information for service providers.


identifier: Barker, Jaspen J. <https://research.library.mun.ca/view/creator_az/Barker=3AJaspen_J=2E=3A=3A.html>   (2016) Exploring individuals' experiences of time-sensitive practice in rural Newfoundland and Labrador: a qualitative study.  Masters thesis, Memorial University of Newfoundland.

abstract: Rural residents of NL face some of the most complex and challenging mental health issues including depression, schizophrenia, and risk of suicide with inadequate and hard to access treatment services. Due to the increasing demands for mental health services, government officials have been emphasizing the need for more responsive and person-centered services to meet client needs. Time-sensitive counselling, an alternative approach to long-term counselling, provides more timely and focused interventions. Mental Health services in Bonavista, a rural community in NL, recently began offering time-sensitive counselling services to its residents, entitled the “Change Clinic.” This phenomenological qualitative research study explored individuals’ experiences of time-sensitive counselling services as offered by mental health services in Bonavista. The results of this research study are detailed and suggest that time-sensitive counselling services can assist in meeting the service needs of rural residents of NL.


identifier: Sánchez Diaz, Gabriela <https://research.library.mun.ca/view/creator_az/S=E1nchez_Diaz=3AGabriela=3A=3A.html>   (2016) Re-mapping the body: feminine experience in music performance.  Masters thesis, Memorial University of Newfoundland.

abstract: In this project report I analyse how the practice of Body Mapping impacts the bodily performances of women classical musicians. The purpose is to study how the characteristics that define normative gender affect the body and its movement; to interrogate the body as the site where a patriarchal society constructs gender roles (more specifically, femininity); and consequently to assess the effects that these may produce in music performance. Drawing on interviews with six women classical musicians, autoethnography, and Body Mapping as a method, I created a workbook for women Body Mapping students. The goal of my research is to look into the possibilities of how the three fields—music performance, Body Mapping and feminist thought—can connect together, thus laying the groundwork for possible future research in this area. Even more, I seek to apply new approaches to music performance and to contribute, at a practical level, to the development of women classical musicians.


identifier: Armour, James Edward <https://research.library.mun.ca/view/creator_az/Armour=3AJames_Edward=3A=3A.html>   (2016) Castles in the air: the life, times and influence of the Reverend Moses Harvey (1820-1901).  Masters thesis, Memorial University of Newfoundland.

abstract:
The period from 1874 to 1901 was a time of significant transition in the economic and political life of Newfoundland. Twenty years into responsible government and with Confederation on the backburner, the colony’s politicians turned their attention to economic diversification, landward development and carving out the island’s place in the British Empire. The period saw both economic prosperity and retrenchment; the construction of a trans-insular railway; the adoption of policies to foster agriculture, forestry, manufacturing and mining; and diplomatic efforts to resolve France’s outstanding claims on the northwest coast of the island. At the same time, the government made an attempt to intervene directly in its primary industry, the fisheries. It created a Fisheries Commission in 1889 that recommended conservation measures and artificial propagation as ways to restore the health of some of the island’s fish stocks. They also proposed new methods of curing, packaging and marketing Newfoundland’s cod, as well as a complete overhaul of the truck system. A major player in both the public and private debates surrounding all of these subjects was the Reverend Moses Harvey.
Along with being minister of the Free Church of Scotland in St. John’s, Harvey was one of Newfoundland’s most active promoters in the late nineteenth century. He served as the media mouthpiece for both Prime Minister William Whiteway and Prime Minister Robert Thorburn; editing the Evening Mercury – the official organ of the Liberal Party and then the Reform Party – from 1882 to 1883 and 1885 until 1890. As well, Harvey wrote regular columns on Newfoundland issues for newspapers in London, New York, Boston, Montreal, Toronto, and Halifax. He also produced numerous books, articles, encyclopedia entries, and travel guides outlining the island’s attractions and its vast economic potential. In short, Harvey made a significant contribution in shaping the way residents and the outside world viewed Newfoundland during this period.
This thesis examines late nineteenth-century Newfoundland through the writing of Moses Harvey. The biographical approach offers a fuller, more nuanced account of some of the major historical themes of the period including the politics of progress, opening up the interior, railway construction and attitudes toward the fisheries. It also provides an insider’s prospective on what led to some of the major political decisions, policy positions or compromises taken by the Whiteway and Thorburn governments. Finally, a more detailed review of Harvey’s work exposes the practical and political differences that he had with people like D.W. Prowse and Bishop Michael Howley. While these so-called “boomers” in Newfoundland’s historiography agreed on broad themes, they parted ways over what should be done with the fisheries and how best to channel the colony’s growing sense of nationalism.


identifier: Smith, Jillian Rene <https://research.library.mun.ca/view/creator_az/Smith=3AJillian_Rene=3A=3A.html>   (2016) When petro-capitalism comes knocking: community interpretations and responses to the Gros Morne fracking controversy.  Masters thesis, Memorial University of Newfoundland.

abstract: With the depletion of conventional oil and gas sources, the world is turning to what Urry terms “tough oil,” such as oil from the Alberta oil sands and Arctic. Fracking is a prominent example of this. Situated within an environmental justice framework, I analyze community interpretations and responses to proposed fracking development near Gros Morne National Park, Newfoundland, Canada. Based on data generated from interviews, field observations and content analysis of texts, my findings suggest that how residents view rural place is highly significant in influencing supportive or oppositional positions on fracking. Proponents picture place as a resource extraction landscape, whereas opponents understand place as a restorative landscape for leisure/tourism activities. Through debates about fracking, place is contested and re-imagined. In many ways, fracking is a struggle over who has the power to define the meanings and characteristics of rural community in an era of tough oil and significant rural change.


identifier: Ryan, Bernard J. <https://research.library.mun.ca/view/creator_az/Ryan=3ABernard_J=2E=3A=3A.html>   (2016) Development of a high-frequency surface-wave radar cross section model for icebergs.  Masters thesis, Memorial University of Newfoundland.

abstract:
In this thesis, the first-order radar cross section (RCS) of an iceberg is derived and
simulated. This analysis takes place in the context of a monostatic high frequency
surface wave radar with a vertical dipole source that is driven by a pulsed waveform.
The starting point of this work is a general electric field equation derived previ-
ously for an arbitrarily shaped iceberg region surrounded by an ocean surface. The
condition of monostatic backscatter is applied to this general field equation and the
resulting expression is inverse Fourier transformed. In the time domain the excitation
current of the transmit antenna is specified to be a pulsed sinusoid signal. The result-
ing electric field equation is simplified and its physical significance is assessed. The
field equation is then further simplified by restricting the iceberg's size to fit within
a single radar patch width. The power received by the radar is calculated using this
electric field equation. Comparing the received power with the radar range equation
gives a general expression for the iceberg RCS.
The iceberg RCS equation is found to depend on several parameters including the
geometry of the iceberg, the radar frequency, and the electrical parameters of both the
iceberg and the ocean surface. The RCS is rewritten in a form suitable for simulations
and simulations are carried out for rectangularly shaped icebergs. Simulation results
are discussed and are found to be consistent with existing research.