title: Exploration of exercise motivation and adherence among individuals living with cancer following participation in a structured group-based exercise program

subject: Cancer and aging

subject: Cancer and treatment side effects

subject: Coping with cancer

subject: Physical activity and exercise

subject: Benefits of exercise

subject: Exercise guidelines for individuals living with cancer

subject: Motivation to exercise

subject: Adherence to exercise

subject: Structured exercise programs for individuals living with cancer

abstract:
Background/Objectives: Previous literature has found that exercise participation for
individuals living with cancer has a multitude of benefits and is recommended for rehabilitation
following cancer treatment. It has been suspected that more of these benefits may be obtained
in a structured group-based exercise program due to the safe environment and support from
instructors/group members. Exploration utilizing the Self-determination Theory was used to
determine differences in exercise participation immediate versus long-term post participation in
a structured group-based program. Furthermore, fulfillment of the basic psychological needs
(autonomy, competence, relatedness) was assessed to determine different factors that
influence motivation over time. Method: For both Phase One and Phase Two of this study 10
semi-structured interviews were conducted with women aged 37 years and older, living with
cancer, and who were recruited from a structured group-based exercise program. All
participants completed the Medical History Assessment form which gathered information
regarding lifestyle factors and general health. Using NVivo and the basic psychological needs
as a theoretical framework exercise motivation was explored for both Phase One and Phase
Two. Results: According to participants interviewed immediate post program (Phase One),
fulfillment of autonomy, competence, and relatedness was achieved while participating in a
structured group-based exercise program. Participants indicated that the safe and comfortable
atmosphere, as well as the support from the group played an important role in fostering their
motivation towards exercise. Those participants interviewed long-term post program (Phase
Two) had varied outcomes. Four participants continued exercise in a structured group-based
exercise program and indicated that fulfillment of the basic psychological needs still remained
present and impacted their adherence to exercise. The remaining participants had significantly
lower levels of exercise participation and indicated a variety of barriers (e.g., injury, retirement)
influencing exercise engagement. The lack of group support negatively impacted exercise
outcomes for the less active individuals in this phase. Conclusion: The findings revealed that
exercise in a structured group-based exercise program may provide more of the benefits
associated with exercise for individuals living with cancer. Fulfillment of all three basic
psychological needs did impact exercise motivation, which was evident for those who continued
exercise over time. Further investigation into the role of the needs and long-term exercise
participation for individuals living with cancer is necessary to gain a better perspective on how
exercise programs can be modified appropriately for this population.


title: Temperature effects on the far-infrared absorption spectra of simple organic molecules

subject:
Infrared spectroscopy
Interferometers
Far-infrared frequency
Interferometric data

abstract:
The recent development of interferometers operating in the
far-infrared frequency region, coupled with the use of modern
high-speed digital computers for processing the interferometric
data, has made this frequency region more readily available for
investigation. It became apparent quite early that most, if not
all, compounds exhibit absorptions in this region, confirming the
speculations of earlier dielectrics studies. For polar molecules,
the existence of these absorptions has been attributed to a variety
of causes, several of which have in common a concept of a
short-lived pseudo-lattice or cage of molecules surrounding a
central trapped molecule which could absorb energy from an applied
oscillating electromagnetic field in order to move within the potential
energy well created by the cage members.
In the present work, an attempt has been made to examine this
concept by varying the temperature of the sample, with a view to
altering the size and rigidity of the cage. The type of motion
exhibited by the central molecule has also been considered.
In general, both the intensity and frequency of maximum absorption
increased smoothly with decreased temperature within the
liquid phase, and within certain solid phases in which molecular
rotational motion was allowed. On passing into non-rotator solid
phases, however, the broad, featureless absorption curve of the
liquid was replaced abruptly by one containing several sharp, narrow and intense absorption peaks.
It has been suggested that the broad absorption bands of the
liquid phase are composed of several overlapping bands due to different
types of molecular motion. Further, each of the component
bands was suggested to arise from the differences between the
kinetic energy possessed by a central molecule, and the energy
barrier created by the molecular cage. The kinetic energy of the
central molecule was suggested to be governed by a continuous distribution.
Similarly, the energy barrier might also be governed
by a second continuous distribution.


title: A study in lignin capability to improve strength and water absorbency of starch polymers: a potential heat-resistant fluid-loss-controller in water based drilling fluids

contributor:
Mawhinney, Robert
Fatehi, Pedram
Gottardo, Christine
Liao, Baoqiang
Yan, Ning

subject:
Drilling fluids
Starch modification
Lignin
Lignin-starch polymers

abstract: *Embargoed until January 2024

abstract: In the oil and gas industries, drilling deep wells has rapidly become more significant to meet the global demand. The design of drilling fluids and choosing the proper additives are very important for the drilling operation's success. Rheological behaviour and filtration-loss properties are the main factors to control for effective drilling operations. So, the study of an effective fluid loss controller and a rheology modifier is necessary to designing drilling fluids formulations and determining their proper performance during operations. Starch, as a natural polymer, is broadly utilized in the drilling industry, thanks to its specific structure and solubility in water. The main duties of starch in drilling fluids formulations are reducing fluid loss and improving the viscosity of fluid during drilling operations. One of the main problems of using starch in water-based fluids (WBFs) is being inefficient in high pressure and high temperature (HPHT) condition and shear force. Numerous studies have been conducted to elevate the thermal stability of starch to strengthen it for harsh conditions. In some studies, starch was replaced by new polymers like Carboxymethyl Cellulose (CMC) and other synthetic polymers, to overcome these problems. These polymers are not effective enough and are relatively expensive, so one needs to consider using alternative materials or natural ingredients to make drilling more economical and more efficient, especially in deeper wells with higher temperatures. [...]


title: Learning through relationship: in-context development for teachers of Indigenous students

contributor:
Berger, Paul
Deer, Frank
Ciuffetelli Parker, Darlene
Desmoulins, Leisa

subject: Teachers of Indigenous students

subject: Non-Indigenous educators

subject: Non- Indigenous educators’ practices with respect to Indigenous students

subject: Productive learning relationships

abstract:
In this study, I explore the experiences and qualities of productive learning relationships
shared by Indigenous and non-Indigenous educators in K-12 public education contexts. I know
from my own teaching experience and from existing research that non-Indigenous educators
often have much to learn about teaching Indigenous students well, and about respectfully
incorporating Indigenous perspectives in their daily work. This study springs from my
experience as a Canadian teacher of English, Irish, and Scottish heritage who is growing through
working alongside and relating with Indigenous colleagues and community members. Through a
narrative inquiry approach (Clandinin & Connelly, 2000), I present stories drawn from
conversational interviews (and in one case, observations) with Indigenous and non-Indigenous
educators who have worked together in ways they believe have positively influenced the non-
Indigenous educators’ practices with respect to Indigenous students. Each of these eleven stories
is represented individually, including a piece of art, a context statement, a multi-page story, and a
summary statement. In the discussion chapter, I draw out connecting ideas based on what I have
learned from the stories. These include qualities such as being open, being genuine, trust, being
centred on students, and emotional dynamics like fear and confidence, fun and laughter. The
conclusions emphasize the variety of ways in which productive learning relationships arise and
are sustained by Indigenous and non-Indigenous educators of unique personalities, backgrounds,
and approaches. I point to some supporting factors, such as time and specific roles that can
facilitate these learning opportunities.


title: Exploring Ontario's community service requirement

subject: Student volunteers in social service Ontario.

subject: Community and school Ontario.

subject: Student service Ontario.

abstract:
The thesis examines the community service requirement in Ontario high schools.
As part of the new curriculum, there has been very little research examining the nature of
the community service hours. A case study of a small town in southern Ontario was used
in order to gather information on the issue. Students, teachers, parents, community
organizations and the principal of the high school were examined in order to gain an
understanding o f all aspects of the community service requirement and the interplay
between each group.
The study found support for the new initiative. Over half of the students, both
teachers, 20 of the 26 parents, four of the five community organizations and the principal
all supported the policy and its continuance in the future. The literature dealing with
mandated community service programs suggested that the students’ intentions to
volunteer after graduation would be decreased. However, this study found that 65% of
students intended to volunteer after graduation. This is a significant discrepancy with the
literature. Other findings include that a majority of students believe that their volunteer
experience will help them gain employment and have a direct benefit on the community.
The study concludes by making recommendations for the future of the policy. It
is recommended that a policy coordinator be assigned to increase the effectiveness of the
policy. In order to increase the academic benefit to students, critical reflection activities
need to be encouraged and organized. Students need to be given more assistance in
finding valuable placements. Primarily, community organizations need to be screened
and possible opportunities for student volunteers need to be advertised to students.
Overall, there needs to be more communication established between the local high
schools and the community regarding the student volunteers.
The community service requirement was found to have many benefits to students.
However, with the recommendations in this thesis, the policy could become more
effective and have a greater positive impact for all students.


title: The effect of leg dominance on lower limb kinematics during a 180° pivot maneuver in healthy female soccer players at three different stages of physical maturation

subject: Anterior cruciate ligament

subject: Human motor development and ACL injuries

subject: Agility

subject: Limb dominance

subject: 180° pivot maneuver

abstract:
The purpose of this study was to evaluate the effect of leg dominance on lower limb
kinematics during a 180° pivot maneuver in healthy female soccer players at three different
stages of maturation: pre-pubertal, pubertal, and post-pubertal. Twenty-seven athletes of four
female soccer teams (Under 10, 12, 14, and 18 year old teams) were recruited from the Lakehead
Express Soccer Club in Thunder Bay, Ontario, Canada. The modified Pubertal Maturation
Observation Scale (PMOS) was used to classify nine participants into each maturational group:
pre-pubertal (10.3 ± 1.1 years), pubertal (12 ± 1.4 years), or post-pubertal (14.8 ± 2.0 years).
Testing involved the completion of a short maximal effort sprint coupled with a pivoting turn.
This included a 3.5 m acceleration starting from a stationary position, immediately followed by a
180° pivot maneuver with either their dominant or non-dominant leg, and another 3.5 m
acceleration towards and through the starting position. Trials were recorded using two Basler
high-speed digital video cameras and timed using a wireless timing gate system. The angles of
knee flexion, hip flexion, thigh and shank rotations, and hip abduction/adduction were evaluated
at initial contact (IC), maximum knee flexion (MKF), and toe-off (TO) during the 180° pivot
maneuver. To assess the interaction effects for each of the dependent variables, 2 (leg
dominance) x 3 (maturation stage) x 3 (instants) factorial ANOVAs were used. Two significant
interaction effects were observed between the post-pubertal and the pubertal groups for shank
rotation angle. The post-pubertal group had a greater shank internal rotation angle with the nondominant
leg at both MKF and TO. In addition, there were significant main effects for knee and
hip flexion angles, hip adduction/abduction angle, and thigh and shank rotation angles among
instants. Although not statistically significant, there were noteworthy, practically important
trends observed in the data. The dominant leg had smaller knee flexion angles at each event
within each group, smaller hip flexion angles within the post-pubertal group at IC and MKF and
within the pubertal group, as well as larger adduction angles at MKF and TO within each group.
Furthermore, the post-pubertal group had the largest peak hip abduction angles and hip flexion
angles at IC when isolating on the dominant leg. The results of this study suggest that postpubertal
females pivoting with their dominant leg perform kinematic patterns that may lead to a
greater risk for an ACL in jury during a 180° pivot maneuver as compared to less mature players
on the non-dominant leg. The use of the FIFA 11+ Warm-up Manual Part 1: Running Exercises
by all participants in this study may have implications for the training of female soccer players,
as statistically significant maturational differences were not observed.


title: Women at the heart of the social economy : what motivates women to work in the social economy in Whitehorse, Yukon?

subject:
Women
Yukon
Whitehorse
Economic development
Social aspects
Social capital (Sociology)
Social economy
Whitehorse (Yukon)
Economic conditions
Social conditions
Social policy

abstract: This thesis looks at the importance of women in the social economy in Whitehorse and the motivations influencing women's participation in this sector of the economy. Women's involvement in the traditional economy has been very different from that of men; historically women have been largely excluded from paid labour. Women have different life experiences, needs, and social and familial responsibilities than men, which are shaped by their respective roles in society (Canadian Women's Community Economic Development Council, 2005, pg.1). The focus of this thesis is on identifying the important and unique role of women in this northern social economy and to identify the motivations to their involvement as well as the issues women face working in this sector.


title: Rise up!? : an analysis of appreciative resistance in environmental education / by Blair Niblett.

contributor:
Jickling, Robert
Russell, Connie

subject:
Activism in education
Appreciative resistance
Environmental education - Ethics.

abstract:
This thesis explores the relationship between the concepts of education and activism. I suggest that educators can approach activism in ways that are consistent with the aims of education. In support of this suggestion, I conduct an analysis of a concept of education that includes activism (Chapter II). Building on the notion of educative activism, I explain a framework of appreciative resistance that I have developed as an approach to education that includes activism. The Concept is based on an ethics-based epistemology where our understanding of the world is preceded by an etiquette that demonstrates an openness to the world's possibilities (Chapter III). In the following two chapters I look at cases (or examples) that offer a chance to test possible examples of the appreciative resistance concept, and their connection to educative activism.  The first case (Chapter IV) examines an activist campaign with which I was involved as a student at Lakehead University. While I am critical of the way that the campaign was approached, I analyze the activist events for elements that fit with the concept of appreciative resistance.  The second case (Chapter V) explores a fictional response to a development issue on the Lakehead University campus. The story is designed to represent an activism that exemplifies the appreciative resistance concept. Analysis following this story links appreciative resistance to the broader concept of educative activism. The story is
represented in a non-traditional voice that expresses my thinking about educative activism in a way that is not possible using a traditional academic tone. Chapter VI provides a summary of the main arguments presented through the thesis, and offers some guideposts for further thinking and research about educative activism and appreciative resistance.


title: Time / mutability in the late Elizabethan poetry : with special reference to Sir Walter Ralegh

subject: Time in literature

subject: English poetry Early modern, 1500-1700 History and criticism


title: Wave reflections in a semi-infinitely long cylinder with an attached solid of revolution

contributor:
Bai, Hao
Liu, Kefu

subject:
Wave functions
Vibration
Cylinders

abstract:
A numerical procedure is presented for the study of end reflections in a semi-infinitely long isotropic circular cylinder with attached piezoelectric patch. The hybrid method which combines the finite element formulation in the piezoelectric patch with a wave function expansion representation in the isotropic cylinder is employed in the study. The global solution is obtained by imposing the continuity conditions on the displacements and tractions at the interface between the piezoelectric patch and the cylinder. To obtain the wave functions in the cylinder, the governing equations of the cylinder are discretized by a semi-analytical finite element formulation where the discretization occurs through the cylinder's thickness. Solutions in the cylinder are constructed with modal data from a spectral decomposition of the differential equations governing its natural vibrations. These modal data consist of all propagating modes and edge vibrations, constituting the basis for a wave function expansion of the reflection of waves arriving at the end of the cylinder. On the other hand, the piezoelectric patch is discretized by the axisymmetric finite element formulation. Both least-square and virtual work methods are used for evaluating the amplitudes of the reflected wave field.
A computer code is developed in the study. Numerical cases are presented to
demonstrate the effectiveness and accuracy of the code. The reflections due to
monochromatic incoming axisymmetric and flexural wave are studied. For an
oscillating end voltage that is out-of-phase with the incoming wave, it is possible to
extract electrical energy which is called as energy harvesting. By applying appropriate
voltage in the piezoelectric patch, the reflected propagating waves in the cylinder can
be eliminated efficiently which is called as passive-control. Cases of such an oscillating voltage with a particular radial distribution are given. Results presented in
this study are for different thickness of piezoelectric patch, boundary condition and
distribution of applied voltage. The results illustmte the amount of extracted energy as
a function of the frequency of the incident monochromatic wave. The study has
potential to apply in NDE (nondestructive evaluation), energy harvest and USM
(ultrasonic motor).


title: Behaviour and reproductive success of female-female pairs of Ring-billed gulls (Larus delawarenis), Granite Island

subject:
Ring-billed gull
Birds Ontario Granite Island
Birds Behavior

abstract:
Female-female pairs of Ring-billed Gulls were studied on
Granite Island, northern Lake Superior, during the breeding
seasons of 1979 and 1980. In 1979 the colony consisted of approximately
2400 pairs with 99 nests (4.1%) containing five to
seven eggs. In 1980 the colony had increased in size to 2600
pairs and contained 71 (2.7%) superclutches. Extrapolating from
superclutches in my observation areas, where all attendants were
known, approximately 85% of the total ntmber of superclutches
were attended by female-female pairs. The difficulty distinguishing
these nests from those of polygynous groups laying in a
single nest-cup or nests receiving dump eggs is discussed. Because
of these difficulties, all superclutches were monitored
and treated as a single sample.
Eggs laid in superclutches were slightly smaller than those
from normal clutches, but did not differ in shape. The incubation
period differed significantly for eggs of the two clutch
types, with eggs in superclutches taking Ionger to hatch than
those in normal clutches. Ihis may be because the eggs toward
the outside edge of nests containing superclutches received
significantly less heat. Nests containing superclutches were
larger than those containing normal clutches but were of similar
quality and were not differentially located by substrate,
density or colony location. Nearest neighbour distance was also
similar for the two clutch types.
Nest success did not differ significantly between superclutches
and normal clutches. Hatching success for superclutches was 33% in
1979 and 29% in 1980, while normal clutches had 77% and 61% in 1979
and 1980, respectively. Significantly more eggs rolled from the nest
or were destroyed or abandoned in superclutches compared to those from
normal clutches.
Egg fertility rates were 87% and 94% for eggs in superclutches
while normal clutches had 100% and 99% fertility in the two years of
study. Chicks from normal clutches had a significantly higher fledging
success than those of superclutches. Chicks from the latter had a
higher rate of mortality due mainly to a higher death rate during the
week following hatching. During both years of my study chicks from
superclutches hatched at significantly lighter weights than those from
normal clutches, but their weights did not differ after the first week
post hatch. Tarsal and culmen measurements followed a similar pattern
to that of weight. Food types brought to chicks from the two clutch
types did not differ. Their diet consisted almost totally of fish and
insects.
Females of female-female pairs were of normal size, weight, age
and condition compared to heterosexually paired females. Levels of 13
blood chemistry parameters were measured for female-female pair members and heterosexually paired birds. The only consistent differences were low cholesterol and elevated progesterone levels in members of female-female pairs. Intra-pair size differences suggest that the females
assertively paired by size. They exhibited mate fidelity and to a lesser
extent nest-site tenacity.
Behaviour of female-female pairs is compared to heterosexual
pairs during courtship, the incubation period and rearing of the
brood. Females involved in female-female pairs cooperated well. Four
polygynous groups were monitored, and their behaviour and reproductive
success is reported. Existing hypotheses regarding the origin(s) of
female-female pairing and their biological significance are discussed.


title: Effects of harvesting, prescribed burning and wildfire on soil chemical properties in Northwestern Ontario

subject:
Prescribed fire
Effect of fires on soil chemistry
Effect of logging on soil chemistry

abstract:
Soil chemistry responses to disturbances were quantified and compared at two dates by
sampling the organic, 0-5 cm and 5-10 mineral soil layers in a northwestern Ontario boreal
mixedwood site. The disturbance treatments were as follows: (1) Control, 70 year old mixedwood
stand dominated by white spruce (Picea glauca (Moench) Voss) and balsam fir (Abies balsamea
L. Mill ); (2) Harvest, full- tree logged cutovers in winter; (3) Prescribed Burn, cutovers which
were burned in early spring; (4) Reburn, cutovers which were prescribed burned and subsequently
experienced a wildfire; (5) Wildfire, crown fire in vegetation similar to that of the Control. The
severity level of the three fire treatments, as determined by depth of organic layer mineralized, was
lowest for the Wildfire, moderate for the Prescribed Bum and high for the Reburn. The hypotheses
under investigation were that the magnitude of change in soil chemical properties is greater
following fire than full-tree harvesting and increasing fire severity increases the degree of change in
soil chemical properties.
Organic layer soil reaction was significantly higher by one pH unit, in the three fire
treatments than in the Harvest treatment for June and in the Harvest and Control treatments in
August. All three fire treatments had a significantly higher amount of available phosphorus than
the Harvest and Control treatments in the organic layer sampled in June. Elevated amounts of
calcium and potassium in the organic layer sampled in June of the fire treatments resulted in
significant differences between them and the Harvest treatment while the difference in magnesium
was significant among the fire treatments and Harvest and Control. These significant differences
among treatments in available phosphorus and cation levels did not persist to the August collection
period.
There were no significant differences among fire treatments for the organic layer sampled
in June but variables that the ordination suggested were responsible for separating the fire
treatments included organic matter content and total nitrogen. Cation exchange capacity was
significantly higher in the Wildfire and Control treatments than in the Prescribed Bum, Reburn and
Harvest treatments for the organic layer sampled in August. The cation exchange capacity and
total nitrogen for the Wildfire increased significantly between June and August and may be the
result of a delay in the addition of ash and particulate organic matter to the forest floor from
combustion which occurred in the tree crowns. Organic matter content, as estimated by loss on
ignition, was significantly lower in the Reburn treatment compared to the Control in August;
suggesting greater volatilization of carbon occurred in this treatment than in the other two fire
treatments.


title: Late Paleoindian biface manufacture: a case study from the Mackenzie I site (DdJf-9) near Thunder Bay, Ontario

contributor:
Hamilton, Scott
Boyd, Matthew
Gibson, Terry

subject: North American deglaciation and paleoenvironment

subject: Glaciation and geomorphology

subject: Deglaciation and migration

subject: Paleoenvironments and the Paleoindian subsistence base

subject: Paleoindian culture history

subject: Paleoindian period in Northwestern Ontario

subject: Paleoindian occupation of the Thunder Bay Region

subject: Paleoindian site distributions in the Thunder Bay region

subject: Mackenzie I site (DdJf-9)

abstract:
The Mackenzie Sites appear to form part of the Late Paleoindian Lakehead Complex that occupied the unglaciated peninsula between Glacial Lakes Agassiz and Minong during the terminal Pleistocene. A number of sites and isolated projectile point finds have been discovered throughout the region. Most excavated collections consist of quarry workshops, yielding vast lithic assemblages snapshots of the reduction sequence and very few diagnostic tools. In contrast Mackenzie I (DdJf-9) appears to be an extensive and repeatedly used stream mouth habitation site. Its vast lithic assemblage includes specimens attributable to the full range of the lithic reduction sequence and a large number of diagnostic tools. Biface assemblages from other sites within the Lakehead Complex have been analyzed in an attempt to determine the lithic reduction sequence. These sites have provided partial insight in understanding the middle stages of the Lakehead Complex reduction sequence. Mackenzie I offered the chance to observe the complete sequence of lithic reduction. The biface assemblage consists of 667 bifaces that could be placed in Stage 1-5 reduction. Am additional 223 bifaces were unstageable, 21 anomalous bifaces fell outside the normal range of variation, and 532 were classed as formal tools.
The biface stages were determined using metric and non-metric attributes in an attempt to further define the Lakehead Complex reduction sequence as previously established. Bifaces from Mackenzie I include Stage 1 through to Stage 6 (the last stage representing formal and diagnostic tools). It also became apparent that there were two trajectories of manufacture used in the production of the Mackenzie I assemblage. Large tabular blanks were reduced by systematic removal of flakes using direct percussion techniques, termed the Biface Trajectory. Where thin narrow flakes were reduced using refined methods of flake removal using either indirect percussion or directed pressure flaking, this was termed the the Flake/Blade Trajectory. It also became apparent that there was a selection of flake blanks, reduced for the specific purpose of manufacturing projectile points. Many of the projectiles at Mackenzie I exhibit a slight twist and/or curvature. Such attributes can be attributed to the nature of the blank and the subsequent methods of flake removal. Since the initial identification of the Lakehead Complex projectiles, they have been characterized by their refined parallel oblique flaking pattern. It was not until the excavation of Mackenzie I that the prevelance of this manner of flaking (99%) became apparent. This analysis has revealed that parallel oblique flaking enters the lithic reduction sequence at Stage 3, but with significantly wider flake scars. It is hypothesized that this was a result of the preferred lithic raw material. The Gunflint Formation cherts that were heavily utilized at Lakehead Complex sites are very hard, yet brittle and contain joint plane faults and iron-oxide inclusions. The Mackenzie I assemblage also indicates the presence of a blade technology being used alongside the bifacial toolkit. These blades are easily producible on high quality tabular blocks of the Gunflint Formation chert. It appears that blades, blade/flakes and large tabular blocks were all utilized in order to produce the Mackenzie I toolkit. These were all nearly exclusively finished using parallel oblique flaking techniques.


title: Genetic variation of wood properties in tamarack (Larix laricina (Du Roi) K. Koch)

subject:
Tamarack Genetics
Larix laricina
Broad-sense heritability

abstract:
Genetic variation of tracheid length, specific gravity, latewood percentage,
height growth, and ring width among and within four provenances of tamarack (Larix
laricina (Du Roi) K. Koch) was investigated in a ten-year-old provenance test that
was planted in Thunder Bay, Ontario. Significant genetic variation of tracheid length,
height growth, and ring width was found among provenances and among clones
within provenances. A south-north trend of decreasing provenance means with
increasing latitude was found for tracheid length, height growth, and ring width. Fastgrowing
provenances generally had longer tracheids than slow-growing provenances.
Variation of specific gravity and latewood percentage was not significant among
provenances or among clones within provenances. Variance components and broad-sense
heritabilities of wood properties due to clones within provenances were larger
than those due to provenances. However, variance components and broad-sense
heritabilities of growth characteristics due to clones within provenances were smaller
than those due to provenances. Positive genetic correlations (r=0.03 to 0.88) between
wood properties and growth characteristics were detected, and the possibility of
improvement of both wood properties and wood volume in tamarack was discussed.


title: Dispersion and flocculation affinity of anionically charged kraft lignin

contributor:
Fatehi, Pedram
Pakzad, Leila
Mawhinney, Robert

subject: Lignin

subject: Softwood kraft lignin

subject: Sulfonation & oxidation of softwood kraft lignin

subject: Applications of modified lignin

abstract:
Softwood kraft lignin is a biodegradable, renewable, and environmentally friendly natural polymer. Although kraft lignin is widely produced in Canada, it is predominantly underutilized as fuel because it is only soluble in alkaline pH that limits its application as a value-added product.
The main objective of this MSc study was to enhance the water solubility of softwood kraft lignin to be used as dispersants and flocculants. In one set of experiments, softwood kraft lignin was modified through a sulfonation reaction with sodium sulfite to produce water soluble sulfonated lignin with an anionic charge density. Alternatively, the kraft lignin was oxidized via hydrogen peroxide or nitric acid to improve its water solubility and charge density. The results confirmed that the modifications generated water soluble products with anionic charge densities. The modified lignin samples were also characterized via FTIR, TGA, DSC, GPC and elemental analyses. Furthermore, the performance of the modified lignin samples was studied and compared with a commercial lignosulfonate as a flocculant and dispersant.
The results confirmed that the adsorption of modified lignin samples was higher than that of commercial lignosulfonate on alumina, bentonite, and kaolin. The oxidized lignin with nitric acid exhibited a greater adsorption capacity than other modified lignin samples on all types of particles studied. Generally, the modified lignin reduced the zeta potential of suspensions and the change was more pronounced for the oxidized lignin via nitric acid treatment. The dispersion studies confirmed that the modified lignin with nitric acid was more effective than other samples, but its flocculation performance was not as good.
Furthermore, the efficiency of the lignin samples in removing basic blue and ethyl violet dyes from solutions were studied, and the results confirmed that the lignin samples modified with nitric acid had a higher efficiency than other samples. The higher charge density of the lignin sample modified with nitric acid (2.6 meq/g) was claimed to be the main factor for its better performance; whereas the lower charge density of commercial lignosulfonate (1.4 meq/g) was its main drawback for its application as a flocculant.


title: Gender, language, and power: exploring elementary teacher candidates’ ideologies and pedagogical approaches

contributor:
Walton, Gerald
Roth, Jenny
Chambers, Joan

subject: Gender and sexual diversity (Canadian schools)

subject: Preservice teachers and language literature

subject: Gender and language teaching in schools

abstract:
Using a single-case study design, this research aims to understand the ideologies of preservice teachers pertaining to the equity issues of gender and sexual diversity (GSD). In the US,
GLSEN school climate surveys (Kosciw et al., 2020, 2019), along with Canada’s first national
school study, Every Class in Every School (Taylor & Peter, 2011), have consistently shown that
GSD students face daily adversity in Canadian schools from both peers and teachers. While the
Ontario Ministry of Education has created various policy and training frameworks to focus on
this concern, previous research has found a gap between teachers’ beliefs and practices in
addressing topics of GSD with students and colleagues. Primarily, this study concentrates on the
context of the language learning classroom and the anti-discrimination framework on which the
Ontario Language Curriculum is founded. Investigating how preservice teachers approach their
selection of language literature and discussion with students can illuminate how they perceive
GSD as an equity issue and how they might use their future roles as teachers to perpetuate or
combat social differences. This study also elucidates how Bachelor of Education programs play a
role in equipping teachers with evidence-based practices and knowledge to be prepared to face
such issues in their future classrooms.


title: Modelling the relationships of internal governance mechanisms on innovation: empirical insight from utility tokens

contributor:
van den Berg, Herman
Zhao, Wenyao

subject:
Utility tokens
Internal governance and innovation
Blockchain technology
Cryptocurrency
Entrepreneurial finance

abstract: The purpose of this paper is to determine the impact internal corporate governance mechanisms have on innovation. Current studies are inconclusive on the conceptual relationship given the wide range of institutions that influence corporate governance in countries around the world. This paper examines the impact of ownership structure and advisory board structure on innovation output in the context of utility tokens, which is an idyllic setting as there are no notable regulations that apply to utility token offerings as contracts are enforced through smart contracts, on blockchain, thus serving as a fruitful laboratory for exploring the conceptual relationships. The analyses were conducted on 525 utility tokens, which held their initial offerings within a period of three years. Several linear regressions were conducted, with the natural logarithm of pull requests merged on GitHub files as the dependent variable, representing innovation output. The percentage of token supply owned by whales represented ownership concentration, the number of institutional owners represented institutional ownership and advisory boards size and technical intensity represented advisory board structure. To test potential quadratic relationships, the squared terms of each independent variable was also considered.  Findings suggest that ownership concentration, represented by the percentage owned by whales, has a quadratic, inverse-U relationship on innovation output, which may reconcile the positive and negative linear findings from prior research. Institutional ownership had a strong, positive relationship on innovation output. In this context, institutions were all venture capital firms and this advances knowledge as venture capital firms have not been isolated from other institutional investors in prior research due to difficulty with access to data. The findings also cemented predictions for advisory board structure, namely that the technical intensity of the advisory board explained more variance for innovation outcomes than the raw number of advisors. This is the first study to empirically examine advisory boards of organizations. The main contribution of this research is the modelling of conceptual relationships between governance and innovation in a context without much formal institutional forces influencing governance, and the testing of quadratic instead of strictly linear relationships. This research concludes with discussions of its limitations, implications for governance regulatory bodies and investors and methodological contributions on using the utility token environment as a laboratory for testing governance relationships.


title: A comparison of decomposition of jack pine and trembling aspen wood blocks by eight wood decay fungi

subject:
Bjerkandera adusta
Carbon cycle decay
Wood decay fungi

abstract:
Decay is an important component of the carbon cycle, as it breaks down
wood and releases the stored carbon back into the atmosphere. White rot,
brown rot, and soft rot are all types of decay which initiate this process. To test if
fungi are host specific, break down wood at different rates, and are dependant
on host species x fungus interactions, a study was conducted using two species
of wood (Pinus banksiana and Populus tremuloides) and eight fungi (Trichaptum
abietinum, Fomitopsis cajanderi, Gloeophyllum separium, Fomitopsis pinicola,
Trametes pubescens, Bjerkandera adusta, Ganoderma appanatum, and
Phellinus ignarius). Small pre-weighed blocks of Pinus banksiana and Populus
tremuloides were aseptically inoculated with mycelium of each of the eight fungi
and final dry weights of the blocks were taken, after 3 months of incubation, to
determine the percent rate of decay.
Both Pinus banksiana and Populus tremuloides experienced a decline in
weight for all eight fungus species. However, Anova testing showed that there
was no significant difference in the percent rate between the two wood types,
but there was a difference between the fungi and the fungi x wood species
interaction. The two Fomitopsis species caused the most statistically significant
difference in the dry weight of trembling aspen blocks, while Fomitopsis pinicola
caused the most statically significant difference in dry weight of jack pine blocks.
Although both Fomitopsis species are primarily conifer-inhabiting, the ability to
decay hardwood blocks suggests that ideal lab conditions may alter fungal
species ecological strategies compared to less than idea natural conditions in
the field.


title: Effects of various leg positions at the catch on the force of the rowing stroke

subject: Rowing

abstract:
The purpose of this thesis was to test in isolation various leg
and body movements in the rowing action and to relate them to forces
created on the oar handle. The subjects were four senior oarsmen.
The independent variables were the four knee angles at the catch with
hip flexion maximized at each. The dependent variable was the maximal
force exerted on each trial. An intra-subject ABAB experimental
design was used. Four random sequences of the three experimental
conditions were determined and each subject was tested on all four
testing orders. An analysis of variance revealed no significant
difference in force magnitudes between the four treatments (£p>.05).
The interaction between days and subjects was significant (p<.05).
Subjects* performances varied considerably from day to day, and also
from trial to trial. All subjects displayed difficulty in stabilizing their performances under all treatment conditions.


title: Older adults' use of memory strategies and self-reported medication compliance : a metacognitive model

subject:
Patient compliance
Memory in old age
Aged Health and hygiene

abstract:
Fifty community-dwelling adults aged 51-83 years of age (M=70.1, SD=7.61) reported
their medication compliance and their use of memory strategies. The first goal of the
present study was to replicate Gould McDonald-Miszczak, and King’s (1997) research on
older adults’ use of memory strategies to aid medication compliance. As in the Gould et
al. (1997) study, older adults reported using internal strategies more often than external
strategies for medication compliance, and the use of strategies was predicted by
metamemorial variables (p<.05) rather than by objective health related factors. The
second goal of this study was to extend the research by Gould et al. (1997), who found
that metamemorial variables, rather than objective medical factors, were significant
predictors of self-reported medication compliance. The present study used a new selfreport
measure of compliance, and examined cognitive performance in addition to health
related and metamemorial assessments. The self-report measure of compliance was tied
more to objective health factors than to subjective beliefs, as medical factors contributed
significantly to the prediction of self-reported compliance (p=.05). Finally, a
metacognitive path model specific to self-reported compliance was tested, and the
importance of compliance, a belief laden variable, predicted self-reported compliance
through prospective strategy use. The results of this study suggest that medication
compliance is a complex mixture of both objective health related factors and subjective
metacognitive assessments.


title: Genetic diversity and colonization patterns of Onnia tomentosa and Phellinus tremulae (Hymenochaetaceae, Aphyllophorales) in the boreal forest near Thunder Bay, northwestern Ontario

contributor:
Hutchison, Leonard
Reid, Darlene
Morris, Douglas

subject:
Genets
Heart rot
Root rot
Somatic incompatibility
Spatial mapping
White rot

abstract:
Forest health is impacted greatly by fungi, particularly those that cause disease in living trees. By examining genetic diversity within populations of pathogenic fungi and their patterns of colonization it is possible to gain a greater understanding of host-pathogen interactions. Two common pathogens in the boreal forest are Onnia tomentosa, causal agent of a root-rot disease in spruce known as stand opening disease, and Phellinus tremulae, causal agent of white heart rot in stems of trembling aspen. Both fungi are members of the Hymenochaetaceae in the Basidiomycota.
Two black spruce (Picea mariana) plantations located north of Nipigon were examined for Onnia tomentosa. Spatial coordinates of 124 basidiomata were taken, and the basidiomata collected from plots that had received different commercial thinning treatments. Using extracted DNA from each of the basidiomata, it was possible to measure genetic diversity and consequently genet size. One hundred and sixteen genetically distinct individuals were found suggesting that the majority of the basidiomata represented unique genets. The distribution pattern was mapped. Stand thinning appears to negatively impact colonization of spruce by O. tomentosa compared with that observed in unthinned control stands.
In an ancillary study, a stand of trembling aspen (Populus tremuloides) located at Silver Mountain (74 km SW of Thunder Bay) was examined for Phellinus tremulae. Four infected trees were harvested and each stem cut into 50 cm sections with the top 5 cm from each section removed as a cookie. From each cookie, isolations of P. tremulae were made onto agar media and somatic compatibility techniques were utilized to determine size and distribution of genets in each tree. Two trees contained two genets of P. tremulae, one tree contained a single genet, while the remaining tree failed to yield any isolations of P. tremulae at all.


title: Re-examination of the relationship between the Type A behavior pattern and heart rate recovery from a psychosocial stressor

subject:
Typology (Psychology)
Heart beat
Stress (Psychology)

abstract:
A recent study by Hart and Jamieson (1983) reported
that Type A males recover from a psychosocial stressor
significantly slower than their Type B counterparts. It is
unclear, however, whether this result is a robust one, or
the result of an element of social comparison which was
present during performance of and recovery from the stimulus
task. The present study therefore reexamined this issue.
Sixty-one male and 61 female undergraduate university
students completed the Jenkins Activity Survey (Form T) and
were then randomly assigned to either a social comparison or
no social comparison group. Subjects in both conditions
performed the Stroop color word task under conditions
stressing time urgency and competition. In addition,
subjects in the social comparison group were informed that
their scores would be compared to the scores of other
subjects who had already participated in the study. Heart
rate was recorded before, during and after performance of
the task. Hart and Jamieson's study was not replicated.
The social comparison group which was expecting feedback at
the end of the recovery period showed significantly (p<.025)
less heart rate recovery during this period. No A/B
differences were observed either in response to or recovery
from the task. The failure to replicate the finding by Hart
and Jamieson suggests that the previous report be
interpreted with caution until further replications are
attempted.


title: Ground state energy of a bound polaron.

subject: Polarons.


title: Floristic structure, composition and depth of edge influence at buffer and wildfire edges along small boreal streams

subject:
Buffer zones (Ecosystem management)
Ontario, Northwestern
Vegetation dynamics
Plant communities
Wildfires
Environmental aspects
Forest fires
Logging

abstract: Within the boreal forest of northwestern Ontario clearcutting and fire are the most common edge-creating disturbances. Along streams, wild fire consumes the majority of trees to the edge of riparian zones. However, forest management relies on the retention of 30 to 70 m treed buffer reserves beside streams following harvesting. Fundamental knowledge regarding how buffer and fire edges compare near shoreline forests is lacking. The development of sustainable forest management strategies that emulate natural disturbances relies upon such information. The objective of this thesis was to examine and compare the edge influences on overstory structure, near ground microclimate and understory species composition at buffer and wild fire edges adjacent to small streams in northwestern Ontario.


title: Expansion of the applicability of the Truce-Smiles rearrangement

subject:
Truce-Smiles Rearrangement
Ionic liquids

abstract:
The Truce-Smiles rearrangement is a synthetically useful and easily performed reaction
which can be used to condense multiple steps of a synthesis. The nucleophilic aromatic
substitution in this reaction produces a chiral center in the rearrangement product. A variety
of rearrangement substrates has been prepared and investigated. Investigations into tether
functionalization, tether length, pyridyl ring systems and introduction of a second heteroatom
into the tether are reported. It has been shown that the rearrangement prefers nitrile tether
functionalization. For ethyl ester tethers that perform the rearrangement, there is a
secondary cyclization that results in the formation of an aryl lactone. The rearrangement
favours a tether length that proceeds through a 5-membered ring intermediate.
Rearrangement was successfully reported for a substrate which utilizes two heteroatoms in
the tether, something which has not appeared in the literature previously. Use of a
microwave reactor resulted in increased rearrangement yields, in addition to facilitating
rearrangements that were previously unsuccessful using conventional heating with an oil
bath. Use of chiral ionic liquids (CILs) is an excellent approach toward green chemistry due
to their high solubility power, coupled with their ability to be recycled and reused over
multiple reactions. Over recent years, there has been an increasing interest in investigating
the use of CILs as solvent systems to selectively induce chirality in reactions; resulting in
the enantioselective formation of products and reduced waste. A variety of CILs have been
prepared and tested for their ability to serve as solvents and impart chirality on the reaction.
The CILs were successfully used as reaction solvents, however, there is no strong chiral
induction observed.


title: Isolation and characterization of novel cellulase and pectinase producing bacteria

contributor:
Qin, Wensheng
Leung, Kam
Mackereth, Robert

subject: Cellulases and pectinases (industrial applications)

subject: Microbial cellulases and pectinases

subject: Polysaccharides

abstract:
Cellulases and pectinases are the major cell wall degrading enzymes. The
microorganisms producing these enzymes have a wide range of industrial applications.
In this research, 17 bacterial isolates from rotting wood samples were screened for their
cellulase activity by carboxymethyl cellulose (CMC) plate assay. Similarly, a bacterial
strain isolated from the gut of western honey bee (Apis mellifera L.) showed
polygalacturonase activity by pectin agar plate assay. The bacterial isolates showing
higher region of depolymerisation were further assayed for their activities for producing
the enzymes quantitatively and they were identified on the basis of 16S rDNA sequence
analysis. The protein gel was run using SDS-PAGE for molecular weight determination
of the cellulase and polygalacturonase. The sequences of two isolates producing
cellulase (Bacillus sp K1 and Bacillus sp. A0) and one isolate producing
polygalacturonase (Bacillus sp. HD2) were successfully uploaded to the NCBI data
base. The enzymes produced by isolates K1 and HD2 were characterized. The isolate
K1 produced the maximum CMCase at pH 6 and 50 oC in presence of peptone (1%) as
a source of nitrogen. The enzyme activity was stimulated by Ca2+ (2 mM) by 20% over
the control. Agave biomass was fermented by using two cellulase producing isolates
K1 and A0 and ethanol was detected by using micro-dichromate method. Both the
strains produced ethanol using untreated Agave biomass. Similarly, the
polygalacturonase produced by HD2 strain exhibited enzyme activity in a wide range
of pH from pH 5-12. The production was enhanced by using yeast extract (3%) in the
production medium and the enzyme activity was stimulated by Ca2+ (2 mM) and SDS
(200 mM). In SDS-PAGE gel, the molecular weights of cellulase enzymes produced by
K1 and A0 were ~36 kDa and ~40 kDa respectively and the two clear bands of
polygalacturonases produced by isolate HD2 were found at ~36 kDa and ~72 kDa.


title: The significance of the land in the education and health of Anishinaabe youth from Pic River First Nation

contributor:
Berger, Paul
Korteweg, Lisa

subject:
Indigenous youth
Education
Ontario
Indians of North America
Health & hygiene
Pic River First Nation

abstract: This study shares the experiences of twenty-one Anishinabek youth from Pic River First Nation, Ontario, Canada in relation to how the Land is significant for their education and good health.  This thesis is meant as a small part of my family's role in protecting the Land; my upbringing and connections to my Anishinabek community have influenced my desire to learn about traditional education and its role in supporting Anishinabek learners. Understanding the significance of the Land for Anishinabek youth and what they see as its connection to their education and health is important. These findings support the position that we should continue to keep the Land the way it is so our future generations can experience this too.  This research study contributes to the need to hear from Indigenous youth. The stories shared here reflect how Pic River youth situate themselves and thrive from the Land, community and family in Pic River. Though there is research on Indigenous ways of knowing, and how Indigenous youth learn, there are fewer studies on how Land is significant for the youth, how the Land makes them feel, and how this contributes to their education and good health. In my findings, I heard that "the Land is everything." Miigwetch in sharing this journey with me.


title: A record of transpression-related brittle-ductile deformation and associated alteration within granitoid plutons of the Wabigoon subprovince, Superior Province

contributor:
Zurevinski, Shannon
Hill, Mary Louise

subject:
Granitoid plutons
Pluton emplacement
Wabigoon subprovince
Geochronology
Archean tectonics

abstract:
The Wabigoon subprovince is a 900 km long by 150 km wide Archean-aged granite
greenstone belt. Large, synvolcanic batholiths with smaller late to post-tectonic stocks cut the
numerous greenstone belts of the subprovince. One of the post-tectonic stocks is the Taylor Lake
Stock, located within the western Wabigoon subprovince with a late Archean crystallization age
that has been interpreted to infer the cessation of regional tectonics in the area. However, granitoids
are highly competent and dry rocks that are difficult to deform, leading them to appear
undeformed/unmetamorphosed in the field even though they may have undergone ductile
deformation, brittle deformation and associated hydrothermal/metasomatic alteration. In this
study, field mapping and sampling, petrographic analysis, mineralogical compositional analysis,
stable isotope geochemistry and cathodoluminescence imaging of twelve granitoid plutons
(including the Taylor Lake Stock) across the subprovince are used to constrain the relationship
between the brittle deformation, ductile deformation and alteration of the plutons to provide insight
into the tectonic history of the Wabigoon subprovince.  [...]


title: Cross-cultural Organizations and the Empowerment of First Nations Learners

contributor:
Melville, Wayne
Daniel, Yvette

subject: First Nations learners

subject: Continuing legacy of residential schools

subject: Evolution of adult education

subject: General education development

subject: Funding adult education

subject: Adult learning

subject: Teacher empowerment and the capacity for organizational learning

abstract: By examining the tensions around First Nations learners wedged between competing organizational visions, this research exposes the conflicting funding enticements that impede maximized empowerment for First Nations adult learners. In a mixed methods ethnographical case study using a social justice theoretical framework, this study documented promising levels of empowerment for the students at the beginning of the program. These levels of empowerment were eroded, however, by the Eurocentric funding model that pitted the expectations of First Nations organizations against those of the institutions offering the program, and the needs of the students themselves. The data indicated that the mandatory workplace courses delivered to the informants later in the study were generally below the informants’ ability range. Ensuing levels of empowerment of the learners near the end of the study appeared to reflect the economic streamlining decisions with data that indicated disempowerment across several quantitative categories as run through SPSS and supported by the study’s side-by-side qualitative data. Endorsements for Ministry of Education and Ministry of Training, Colleges and Universities to focus their funding models on quality, rather than the quantity, of programming are among the recommendations that emerge from the research. Recommendations also include utilizing graduate level teachers working with management rather than under management to facilitate assured and embedded front line input into program development.


title: Locus of control and sex-role beliefs in the prediction of assertiveness

subject:
Assertiveness (Psychology)
Locus of control
Sex role

abstract:
Locus of control has been identified as a strong
predictor of assertiveness for men, but not for women.
It was hypothesized that sex-role beliefs might
moderate the locus of control-assertiveness link among
women. In this study the relationship of locus of
control and sex-role beliefs with self-assertion among
48 male and 192 female university students was
examined. Paulhus' Spheres of Control scale and the
Rathus Assertiveness Scale were used to measure locus
of control and assertiveness respectively. The SEAS
Scale was developed specifically for this study to
assess sex-role beliefs. As hypothesized, egalitarian
women evidenced a significantly stronger correlation
between internal locus of control in the realm of
personal efficacy and assertiveness than did women with
traditional sex-role beliefs. For both men and women
internal locus of control beliefs in the interpersonal
realm were a significant predictor of assertiveness.
This contradicts a large body of earlier research in
which no such relationship was found among female
subjects. Other differences in assertiveness and locus
of control levels as a function of gender and sex-role
beliefs are discussed.


title: A Modification of the Effros-Handelman-Shen Theorem with Z2 actions

subject:
C∗-algebras
AF-algebras
Inductive limit
Effros-Handelman-Shen theorem

abstract:
In this thesis, we show that if we have a Z2 action on a latticeordered dimension group, then it will arise as an inductive limit of Z2
actions on simplicial groups. This work was motivated by the range of
the invariant problem in Elliott and Su’s classification of AF type Z2 actions. In order to show this, we modify the proof of Effros-HandelmanShen theorem to include Z2 actions at every stage of the arguments.


title: Factors influencing trail use into lakes with tourism values

subject:
Angler preference
ATV use
Fly-in fisheries
Resource-based tourism
Forest access roads

abstract: Tourism establishments that are only accessible by float plane are a vital component to northern Ontario‟s economy. The remote nature of the lakes where these establishments are located can be compromised through introduced all-terrain vehicle (ATV) trails that are developed from forest access roads. This study assesses the factors that influence ATV trail use into lakes with tourism establishments that are only accessible via float plane. The study was conducted across northern Ontario using TrafX traffic counters to monitor ATV trail use. Five factors were analyzed; Weekend and corresponding holiday traffic, Trail Length, Lake Size, Accessibility (distance to communities) and the presence Walleye Sander vitreus. It was discovered that trail length was negatively associated with trail use and weekend and corresponding holiday, lake size, and accessibility were positively associated with trail use. These results can help to identify lakes that are of high risk for ATV trail use and, thus, might require more management and enforcement efforts.


title: Ethanol-morphine interactions : a study of the effects of prenatal exposure on the development and behavior of the rat

subject:
Rats Behavior
Morphine Toxicology
Alcohol Toxicology

abstract:
Ethanol-Morphine interactions: a
study of the effects of prenatal exposure on the development and
behavior of the rat.
The purpose of the study was to investigate the effects of
ethanol, morphine and ethanol-morphine on the physical and
behavioral development of the rat. Eighteen female and 18 male
animals from Satinder's Heterogeneous Stock (SHS) were paired.
The dams were then exposed to a regimen of either water, or
morphine (0.5 mg/ml), or ethanol (10% v/v), or ethanol
(10%v/v)-morphine (0.5mg/ml) (high), or ethanol (5%
v/v)-morphine (0.25mg/ml) (low), for 21 days during gestation.
The 116 surviving offspring were observed daily until weaning
(day 28 postpartum) for physical, reflex, and sexual
development. Following weaning the same offspring were tested
for preference towards ethanol and morphine, avoidance learning,
reactivity, and hot-plate nociception. There were two instances
of delayed physical development one due to ethanol, and one due
to ethanol-morphine (high) exposure. There were significant
developmental delays due to morphine exposure, and delayed
female sexual development due to ethanol, and ethanol-morphine
(high) exposure. An overall preference for ethanol was observed
regardless of prenatal exposure. This tendency was reversed
following morphine, or ethanol-morphine (high) exposure. The
consumption of either morphine or ethanol on forced and choice
days was dependent on the order of presentation. The postnatal presentation of ethanol and morphine altered food consumption in
an order-related pattern. Differences due to prenatal exposure
were also observed for the One-Way Avoidance response. It is
suggested that the prenatal exposure to ethanol and morphine did
not significantly affect learning, while the combination of both
agents produced a dose-related hyperresponsivity. The
reactivity and the hot-plate testing paradigms were the least
sensitive indicators of ethanol-, and/or morphine-induced
behavioral effects. The lack of differences is attributed to
the limitations of the two testing situations. It is therefore
recommended that reactivity testing be extended, and that the
hot-plate testing be used in conjunction with postnatal
presentation of ethanol or morphine.


title: Continuity of Native values : Cree and Ojibwa / by Lorraine F. Brundige.

subject:
Cree philosophy Manitoba, Northern
Indian philosophy North America
Ojibwa philosophy Ontario, Northwestern


title: Bioconversion of crude glycerol to biofuels and value-added bioproducts

contributor:
Qin, Wensheng
Xu, Charles
Jiang, Justin
Liao, Baoqiang

subject:
Glycerol
Crude glycerol
Bioconversion
Biotransformation
Bacterial consortium
Klebsiella pneumoniae
Biosynthesis genes
Glycerol dehydrogenase
Mutagenesis

abstract:
Increasing demand and the rising cost of fossil fuels, as well as a concern for global climate change have shifted global efforts to utilize renewable resources for the production of a ‘greener’ energy replacement. Biodiesel, a renewable fuel produced by transesterification of animal fats and vegetable oils, generates about 10% (v/v) of crude glycerol as a core by-product. Consequently, the recent booming of biodiesel industry all over the world has generated a large amount of crude glycerol, creating an oversupply problem. The economic feasibility of the biodiesel industry has been crucially affected due to a high volume (by worldwide surplus) of crude glycerol generated from the biodiesel production process. Consequently, with the increasing number of biodiesel production plants, a large number of glycerol production plants can be expected to be shut down within a few years due to the price drop that will result from the oversupply of glycerol. Therefore, this abundance of glycerol provides an opportunity for the development of new commercial uses.
Glycerol, a core by-product of biodiesel production has become an inexpensive and easily obtainable product for which new applications have to be discovered. At present, there is a lack of microorganisms which can efficiently convert crude glycerol to value-added bio-products. The new isolate of bacteria that would permit screening, isolation and over-expression of enzyme would help overcome these challenges. Thus, this research is to identify novel bacterial strains which are capable of efficiently converting glycerol aerobically, and improve the strains for large scale production of value-added products. In Chapter 2 and 3, this study shows a number of bacterial strains isolated from environmental consortia were screened for their capability of converting low or negative-value biodiesel-derived crude glycerol to value-added products. Primarily, an aerobic batch biotransformation process was carried out to observe the kinetics of glycerol dehydrogenase (GDH) activity, bio-product formation and glycerol utilization. Therefore, the major bio-product obtained from this biotransformation of glycerol was 2,3-butanediol (2,3-BD) with minor co-products including acetoin, 1,3-propanediol (1,3-PDO) and acetate. In this study, three bacterial species Klebsiella pneumoniae, K. variicola and Serratia liquefaciens newly isolated from soil and paper mill waste were the highest producers of 2,3-BD. The novel strains K. pneumoniae SRP2 and, K. variicola SRP3 were used to construct a co-culture, capable of simultaneously converting crude glycerol to concurrently produce up to 27.87 g/L of 2,3-BD, yielding 0.73g 2,3-BD per gram glycerol (0.73g/g) using 37.0 g/L glycerol under aerobic conditions in batch culture, showing great potential for biotransformation bioprocess. Therefore, an attempt has been made to produce a major product 2,3-butanediol (2,3-BD) from glycerol as a sole carbon source using newly isolated novel bacterial strains Klebsiella variicola SRP3 and K. pneumoniae SRP2 in a series of batch and fed-batch processes under aerobic process. These studies also compare the bacterial cell biomass, bio-products and a key enzyme glycerol dehydrogenase (GDH) production of K. variicola SRP3 and K. pneumoniae SRP2 isolated from paper mill waste when grown in aerobic condition. The incubation temperature, pH, glycerol concentration and nitrogen sources were the most important factors ruling the GDH. This study also revealed that an increased GDH activity led to a substantially enhanced production of 2,3-BD as a principal product with 1,3-propanediol (1,3-PDO), acetoin and acetate as minor. In Chapter 4-6, the studies of high production of 2,3-butanediol (2,3-BD) from pure and biodiesel derived crude glycerol using an ethyl methanesulfonate (EMS) mutant K. pneumoniae SRM2, and two adapted mutants K. variicola SRM3 and K. variicola SW3 developed from the newly isolated wild type strains K. pneumoniae SRP2 and K. variicola SRM2 respectively are reported. However, as stated in Chapter 4, an adapted mutant strain K. variicola SRM3 withstanding 200 g/L glycerol could efficiently convert glycerol to 29.87 g/L 2,3-BD and 7.08 g/L acetoin from 50.0 g/L glycerol in a batch culture, and an acidic initial pH (pH 5.0) led to enhanced 1.3-fold increased GDH activity of 721.5 units/mg protein from 558.2 units/mg protein.


title: Medication compliance among breast cancer patients on long-term adjuvant chemotherapy

contributor:
Sellick, Scott
Sellick, Margaret

subject:
Cancer Chemotherapy
Patient compliance
Breast Cancer

abstract:
Treatment compliance refers to performing behaviours which follow a
course of treatment that has been agreed upon by the patient and the
health care professional. Noncompliance can result in prolongatiorr of
current health problems, may lead to more extensive treatments, may
compromise the effectiveness of treatment and may increase the chance
of recurrence. The present pilot study, carried out at the Thunder Bay
Regional Cancer Centre, assessed the compliance of 20 female breast
cancer patients taking Tamoxifen, an oral medication considered to have
prophylactic benefits. Measures were taken on desirability of control
(Burger & Cooper, 1979), health locus of control (Wallston, Wallston &
Devellis, 1978), mood states (the Profile of Mood States, Celia et al.,
1987), quality of life (Functional Living Index - Cancer, Schipper et al.,
1984), and the patients' perceptions of the Cancer Centre, their
relationship with their oncologist, and their own likely rate of compliance.
Further, half of the subjects were asked to complete a daily diary of their
medication taking. Each patients' physician was asked to provide
information on diagnosis, present status, physical functioning rating and
likely compliance rate. Subjects were seen four times over a six-week
period. At these meetings, the investigator counted the number of pills
(Tamoxifen) remaining in the bottje and asked the subject to complete
the quality of life measure. Subjects were not told this was a study of
compliance.
It was hypothesized that:
1. patients scoring lower on the quality of life measure would be more
likely to be compliant than those whose quality of life was high.
2. patients who displayed an internal locus of control, who scored high
on desirability of control, and whose relationship with their oncologist allowed for this internal/high desire control would be more compliant
than similar patients whose relationship did not allow for this control.
3. patients showing signs of mood disturbance would be less compliant
to the medication regimen.
4. patients regarding the Centre highly would be more compliant.
5. patients on the regimen for a longer period of time would be less
compliant than those just beginning the regimen.
6. patients' predictions about their own rate of compliance would
accurately reflect actual compliance, while oncologists' predictions would
not be accurate and would overestimate actual compliance rates.
7. patients who kept a daily medication diary would be more compliant
than those not using a diary.
The hypotheses were not supported by the data with the exception that
oncologists' predictions of compliance were not related to actual
compliance. However, age was significantly related to compliance in that
older women were more likely to be compliant to the medication
regimen. Also, it appears that oncologists base their estimations of
compliance on the length of time which has elapsed since the patient first
began treatment - a factor showing no relationship to actual compliance
rate. Several tentative, albeit statistically nonsignificant, relationships
provide compelling suggestions for future research. Also, implications for
the care of cancer patients are discussed.


title: ESL learners perceptions of the cultural components in their English learning

contributor:
O'Meara, John
Courtland, Mary Clare

subject: English language Study and teaching Foreign speakers

subject: Intercultural communication

abstract:
This qualitative study investigated English as a Second Language (ESL) learners' perceptions of
the nature and influence of immersion in a predominantly English culture on their English
learning. The participants in the study were e i^ t adult ESL learners who were enrolled in
Lakehead University programs or courses but were not taking ESL courses. Three themes
emerged horn the analysis of the qualitative data: (a) the nature of ESL learners' culture learning
experiences; (b) the positive influence of immersion in English-language culture on ESL
learning; and (c) ESL learners' perceptions of the influence of culture learning experiences on
their English learning. This study showed that the participants learned English culture when they
immersed themselves in a predominantly English culture. For the eight participants, learning
English culture and having more knowledge about it were necessary components in their ESL
learning. The participants' experiences of immersion in a predominantly English culture
positively influenced their ESL learning. The participants revealed that they benefited
significantly from their experiences of immersion in a predominantly English culture.


title: Fuzzy logic control of a two degree of freedom parallel robot

subject:
Fuzzy logic control
Non-fuzzy logic
Controller simulation
Parallel robot
Serial robot

abstract: Parallel robots differ greatly from their serial counterparts in terms of performance and mechanical ability. Serial robots are open chained mechanisms since each link is connected to an adjacent one and each joint is actuated, while parallel robots implement a closed chained structure. This type of structure consists of having the endpoint of each kinematic chain connected to one another, hence called the common point. There can be a multitude of kinematic chains, but each chain utilizes only one actuator located near the base of the system to perform the desired operation.


title: Demographic, reproductive, and psychosocial predictors of mood change in the postpartum period

subject:
Depression in women
Postpartum depression
Pregnancy and postpartum
Mood (Psychology)
Elation

abstract: The purpose of this study was to examine demographic, reproductive, and psychosocial predictors of mood change in the postpartum period. In a prospective design, 33 women completed either an online or paper and pencil questionnaire in Week 1 postpartum and then again a month later. Mood was measured using the combined Edinburgh Postnatal Depression Scale and Beck Depression Inventory-II scores, Elation Scale total scores, as well as a composite mood scale which measured mood on a continuum from elation to depression. Significant predictors of negative mood change were history of abortion, past negative mood change in the postpartum period, high levels of perceived stress, marital dissatisfaction, problems feeding baby, less sleep than usual, weaker bond with infant, and a negative effect of premenstrual syndrome on mood.


title: Copolymerization of pretreated kraft lignin and acrylic acid to produce flocculants for suspension and solution systems

contributor:
Fatehi, Pedram
Gottardo, Christine
Liao, Baoqiang

subject: Sulfation, sulfomethylation and phenolation of softwood kraft lignin

subject: Copolymerization via Acrylic Acid

subject: Lignin

abstract:
The presence of dyes in the wastewater of textile industry poses a number of environmental
concerns due to their toxic nature and the removal of dyes from the wastewater is a major challenge
nowadays. Synthetic polymers are commonly used in the flocculation of various colloidal systems.
However, these synthetic polymers cause environmental concerns due to their nonbiodegradability
and toxicity to human and animals. Their high costs also limit their use in many
applications. These disadvantages may be overcome by using polymers derived from natural
sources. Lignin is the most abundant renewable resource after cellulose, and is an inexpensive raw
material that can be used to produce high-value products, such as flocculants, dispersants, phenols
etc. Native lignin does not possess suitable properties to be used as is, however, its attributes can
be changed by means of chemical modifications. In this thesis, kraft lignin was initially modified
via sulfation, sulfomethylation or phenolation methods and subsequently copolymerized with
acrylic acid. The resulting copolymers were characterised using a variety of methods including
NMR, FTIR, TGA, molecular weight analysis, and elemental analysis, all of which demonstrated
remarkable changes in the chemical and physical structure of lignin after modification. The
flocculant property of the produced copolymers was investigated in alumina suspensions via
studying a) the adsorption behaviour of copolymers on alumina particles b) changes in the zeta
potential of alumina particles, and c) the ability of the copolymers to alter the relative turbidity of
alumina colloids. The results demonstrated that the copolymers could indeed act as effective
flocculants, with their performance being partly dependent on their charge density, molecular
weight and their ability to decrease the zeta potential of the alumina particles. Indeed, the
copolymers with the highest charge density and molecular weight adsorbed more dye. This work
demonstrated the potential of using widely available, inexpensive, and renewable kraft lignin as a
flocculant after modification. It also provided information on the flocculation of ethyl violet dyes
from synthetic solutions. The data also provides further information about the mechanism and best
ways to chemically modify lignin, as well as how these products function as flocculants.


title: Ore mineralogy of Mattabi mine, Northwestern Ontario, Canada

subject:
Mineralogy
Sturgeon Lake region
Mattabi Mine

abstract: The Mattabi Mine, a volcanogenic massive sulfide deposit located 60 km north of Ignace, Ontario, in the Archean Superior Province, produced 13.5 mt of ore with an average grade 7.5% Zn, 0.88% Cu, 0.77% Pb and 3.10 oz/t Ag in the period 1970-1983.


title: Study of Spenser's Hymnes

abstract:
This thesis is a study of a small collection of
Spenser's poems which was published in London in 1596. The
title of the collection is the Fowre Hymnes and it is one
of the most confusing of Spenser's poetic works. In fact,
none of the critics seem to know why this work was written
or what is actually in it. The letter of dedication also
presents some problems. My purpose in this thesis is to
discuss these problems and to offer a textual analysis of
each of the printed poems. Once this has been done, I
will make some general comments about the collection as a
whole.
I will begin by explaining who the poet's patrons were
and what they were like in actual life. This is important
to our study because it helps us understand the letter of
dedication and the contents of the poems themselves. Unfortunately,
there is little information on either of the
ladies to whom the Hymnes are dedicated and it is consequently
necessary to study their male relations in order
to determine what their position was in life.


title: Role model/mentor influence on the career path of college professors

contributor:
Melville, Wayne
Fennell, Hope-Arlene

subject:
Mentoring in Education
College Teachers
Role Models
Engineering
Ontario

abstract: The original intent of the proposal was to study the impact of role models on a small body of teachers in the Engineering Technology division at an urban college, preferably with experience teaching math and science. However, due to the overlap between role models and mentors, the decision was made to have the study encompass the infuence of both. The study investigated three key time periods in the participants' lifetimes when the influence of role models/mentors may have had an impact.


title: Technical and technological alternatives for aerial moose (Alces alces) survey

contributor:
McLaren, Brian
Runesson, Ulf
Crowe, Kevin

subject:
Moose (Alces alces)
Aerial survey
Thermal imagery
Remote sensing
Stratified random block survey

abstract:
Moose (Alces alces) aerial surveys provide the information needed for effective management only when they are accurate and precise. I aimed to identify gaps in and improve understanding of aerial moose surveys in North America by comparing survey techniques and exploring an application of thermal camera technology. Current aerial moose survey methods are compared in a jurisdictional review, including approaches to correcting visibility bias and a discussion of implementation of new technological advancements. Stratified random block (SRB) surveys are the most common, alongside distance sampling (DS) and other survey types. Thermal imagery, Geographic Information Systems (GIS), and Global Positioning Systems (GPS) have been implemented into survey designs to improve the accuracy of estimates or logistics of the survey.
Using a virtual population of moose derived from Newfoundland aerial moose survey observations, a simulation of SRB and two DS surveys is used to compare accuracy, precision, and effort of each survey type. DS survey transects are spaced 1000- and 5559-m apart, and both survey types are sampled at high (~3 moose/km2) and medium (~1 moose/km2) densities. Accuracy is used as the bias in the simulation and statistically significant differences in precision and effort occur for each survey type.
The final chapter focuses on the use of thermal and colour cameras for locating moose and explores a 22-km2 study site located at La Verendrye Provincial Park, Ontario. Collared moose travelling from Grand Portage Indian Reservation in Minnesota are visible in colour and thermal orthophotos. Moose thermal hotspots are computed from the thermal imagery, in a automated model. Hotspots were then examined manually. Two thermal hotspots over open water are misidentified as moose and 19 of 20 moose in the imagery were correctly identified by the automated search.
Management implications of the study are that DS is a viable alternative to SRB surveys and that thermal aerial imagery is limited to animal counts without correction. Under the simulated conditions, DS performs comparably to SRB surveys and is possibly less expensive, or at least less variable in cost. Manual identification of moose by viewing colour imagery is still required to complement a thermal-imagery system, and sexing moose is not achievable from orthophotos alone.


title: Walking through anxiety : examining the role of expectancy in exercise / by Thomas Newman.

contributor:
Voros, Peter
Oinonen, Kirsten
Jamieson, John

subject:
Exercise - Psychological aspects
Expectation (Psychology)
Anxiety

abstract:
Exercise has consistently been found to reduce anxiety (Petruzello, Landers, Hatfield, Kubitz, & Salazar, 1991). However, the mechanisms underlying the effect of exercise on anxiety are unknown. The present study evaluated the expectancy hypothesis, which posits that the anxiolytic effect of exercise is due to the expectation of such benefits from participating in exercise. It was hypothesized that expectancy would have no effect on the
anxiolytic effects of exercise. Ninety participants (56 females and 34 males) were randomly assigned to one of three groups; 1) an exercise condition (n=31), 2) a quiet rest condition (n=31), and 3) a no expectancy exercise condition (n =28). State anxiety was measured at baseline, after anxiety manipulation, and following the assigned group condition. Participants in the two exercise conditions experienced a slight decrease in state anxiety while participants in the quiet rest control group experienced a slight increase in state anxiety. Although these changes in state anxiety did not reach
significance, participants in the two exercise groups experienced an overall decrease in anxiety which was significantly different from the quiet rest group which experienced an increase in anxiety. These findings support the hypothesis that the anxiety reducing benefit of exercise is unlikely to be due to expectations.


title: Performing authenticity : the game of contemporary backpacker tourism

subject: Ecotourism Backpacking

abstract:
The purpose of this thesis is to analyze contemporary backpacker tourism in Australia. It is
an investigation into the degree to which aspects of backpacker tourism have become
incorporated into mainstream culture despite backpacker tourism’s image of being alternative. It
is also a study which investigates the degree to which the image of the alternative is marketed to
backpacker tourists. The thesis examines the manner in which backpacker tourists seek to escape
the constraints of Western, post-industrial existence by engaging in a form of travel which is
thought to be purer than mass-tourism. This is also an examination of the failure of these tourists
to escape the matrix of the Western constraints they seek to escape.
Research was conducted by way of participant observation in the backpacking culture in
Australia for a period of four months. Information was collected by way of observation,
participant observation, and interviews with individuals located within the backpacking
community.
Data collection yielded results which demonstrate the high degree to which contemporary
backpacker tourism has become incorporated into mainstream capitalist culture. Most aspects of
the pursuit which are believed to fulfil the desired escapism are actually part of the mass-tourist
infrastructure. Accommodation, transportation, activities, and social behaviours are all aspects
which have become commodified and marketed to these travelers. As such, the conclusion
which was made is that there is very little about contemporary backpacking which is alternative.
Furthermore, contemporary backpacking has become a game played by travelers who operate in
a theater of perceived escapism and alternativeness. It is a game, however, which is completely
within confined post-industrial capitalism.


title: Embodied energy assessment of building structural systems using building information modeling

contributor:
Rezazadeh, Ehsan
Pernia, Juan

subject: Building sustainability assessment

subject: Green building

subject: Embodied energy vs operational energy

subject: Energy consumption & environmental impacts of manufacturing & construction phase

subject: Environmental concerns in the construction industry

subject: Life-cycle assessment

abstract:
As the population of the world increases, the need to develop sustainable housing has gained worldwide attention. Although buildings contribute to socio-economic development, they are also among the biggest consumers of energy and contributors to the greenhouse gas emissions. Building construction projects are typically recognized for substantial consumption of natural resources and energy consumption. The most common structural materials used in the Canadian construction industry are steel, reinforced concrete, and engineered wood. Cost, the speed of construction, and the mechanical performance have been usually the main criteria when selecting a building’s structural system, with the environmental impact of the structural material typically ignored. Environmental impact is overlooked mainly because the industry lacks a documented framework, similar to cost estimation and scheduling, for assessment. Although there are several studies that have studied energy consumption of buildings, they mostly focused on the operational energy, since it has the highest energy consumption in a building life cycle. This research project introduces a framework for the environmental assessment of structural materials, in which it calculates the embodied energy of the material production and construction as the main parameter for comparison. This assessment tool is implemented using a building information modelling platform to automate the process. This method considers all the main factors in estimation of the embodied energy, including production, transportation, installation/construction, and wastage of the material. A case study on two typical residential buildings with a similar layout but different structural systems were carried out to assess the practical use of this approach in the design stage. This system demonstrated an easy-to-use process to estimate embodied energy of the structural material using the building information model of the structure. The results indicate that the manufacturing stage has the most significant iv
impact on the embodied energy and GHG emissions of the building structures. In addition, integration of the building information modeling to the assessment system could facilitate the embodied energy assessment process for decision makers.


title: Social comparison to thin and plus size media images : impact on candy consumption, affect, and body image in binge eaters

subject:
Binge eating
Self-esteem
Body image
Effects of the media
Affect (Psychology)
Compulsive eating

abstract:
Binge eating has long been a prevalent issue for young women. Though the development of binge eating is multifactorial, much attention has focused on the etiological mechanisms
underlying binge behaviour. Affect regulation models are empirically supported; models
illustrate the importance of affective dysregulation and negative experiences as antecedents of binge eating. The sociocultural pressure to achieve thinness is also a known risk factor for the development of binge eating. Previous research has shown that women eat less when exposed to thin media images. Several studies also indicate that social comparisons to thin media images result in negative affect and body dissatisfaction. Nevertheless, some research has shown that for dieters, thin images appear to have self-enhancement effects. Research to date has focused on
the internalization of the thin ideal and the effects of exposure to thin models in studies
examining media influence on pathological eating. The current study explored the effect of
social comparison to thin and plus size media images on candy consumption, negative affect and body satisfaction among binge eaters and nonbinge eaters. One hundred and one undergraduate females participated in the current experiment, during which they were exposed to thin and plus size media images and asked to engage in an objective social comparison task followed by a taste test. Results indicated that binge eaters ate more compared to nonbinge eaters, specifically postexposure to thin media images. Increases in negative affect were found to occur as a function of one’s binge status and image type. Further, comparisons to thin media images led to decreases in body satisfaction whereas plus size images had the opposite effect. Results are discussed in relation to the etiological models of binge eating, differentiating factors associated
with binge eating, and upward and downward social comparisons.


title: Memengwaawid, to be a butterfly: an Indigenous exploration of Northwestern Ontario Anishinawbe and Muskego or Ininiw sacred stories and teachings in a contemporary novel

contributor:
Iseke, Judy
Wolf, Sandra
Leggatt, Judith
Bedard, Renee

subject:
Elders and teachers as storytellers
Indigenous storytelling
Indigenous storytelling as methodology
Oral traditions
Sacred stories
Seven Grandfather teachings education

abstract:
Among their capacities to entertain, to pass down cultural traditions, ceremonies,
dances, songs, and to correct undesired behaviours, sacred stories explain how something in
nature came to be and how our interactions with those creatures and other life forms around
us lead into actions of established ceremonies of respect for the land and ourselves. Thus,
from ceremonies and traditions, to codes of conduct and behaviour, to cultural spirituality
and beliefs, sacred stories contain the history of Indigenous peoples. With this recorded
history in mind, I ask: How are Anishinawbe and Cree sacred story lessons and lessons
learned in one's own life journey connected through themes and issues, characters, and
Seven Grandfather Teachings morals?
With the intention to provide a method of understanding the Seven Grandfather
Teachings, I blend the writing of morals into a personally influenced fictional story. I also
draw upon theories of Indigenous ways of knowing to bring an understanding of
relationships and connections to animals and land into the dissertation story. Concepts of
Elders and roles of storytelling, and the oral tradition with connections to self and life are
also discussed. I interweave all of these concepts in my theoretical framework into an
Indigenous storytelling methodology through the use of an Indigenous story method. To
elaborate, I refer to established Indigenous researchers including Jo-Ann Archibald (2008)
and Margaret Kovach (2009) to describe how Indigenous storytelling informs and is a
research methodology. I also discuss how structures and types of sacred story (Ellis, 1995)
can create the foundation of an Indigenous story method.
To inform my interpretation of sacred story characters as they appear in the
dissertation story, including the characters of Weesquachak and Windigo, I combine the readings from literature in related fields (Indigenous education, Indigenous ways of knowing,
Indigenous knowledge) as well as personal understandings gained from in-depth analyses of
the sacred story characters. The analysis of sacred story characters includes discussion of
character traits, any physical description drawn from sacred story, and actions and behaviours
that inform the interpretation of the character and how they appear in the dissertation.
This dissertation story is about a 16-year-old girl named Butterfly who, through a
series of adventures with selected characters borrowed from sacred story, copes with many
different life experiences during a fall semester in high school and learns some of the lessons
often found in sacred story and the Seven Grandfather Teachings.
A part of my own learning throughout my life and my time during the process of
writing this dissertation is built into the dissertation novel: my growing sense of personal and
cultural pride, and my strength as an Ojibwe woman.


title: Power loss investigation of series-connected current source inverters

contributor:
Wei, Qiang
Ameli, Amir
Ghaffar, Farhan

subject: Current-source inverters

subject: Power losses (series-connected current source inverters)

abstract:
Current-source inverters (CSIs) are a type of direct current (DC) to alternating current
(AC) converters that generate a defined AC output current waveform from a DC current
supply. As the counterpart of voltage source inverters (VSIs), they feature a simple
converter structure, low switching dv/dt on the ac-side, and reliable short-circuit protection.
These advantages have made CSIs widely used in high power medium voltage drives.
Besides, they have also been studied in other applications, such as wind energy conversion
systems, superconducting magnetic energy storage (SMES) systems, and microgrid
systems. Different topologies of CSIs and modulation schemes have been evolved to tailor
various application requirements. For those applications with a higher power rating, two or
more CSIs can be connected in series to form series-connected CSIs (SC-CSIs) to increase
the power handling capability. To the best of the author’s knowledge, three topologies of
SC-CSIs have been developed so far. The first topology referred to as topology A is
constructed by connecting several identical CSIs in series. These CSIs are identical in terms
of topology, modulation, and control. A multi-winding transformer is employed at the
output to provide a clear current path for each CSI and step up the voltage if necessary. In
the second topology designated as topology B, the multi-winding transformer is replaced by
a phase-shifting transformer, and a phase-shifting modulation scheme is implemented. This
topology features an increased DC current utilization, decreased switching losses, and
reduced passive components. The third topology denominated as topology C adopts a
different arrangement of switches leading to a reduced number of switching devices. A
multi-winding transformer is used at the output in this topology. Power losses are an
important attribute of SC-CSIs since they have a significant impact on the efficiency of the
system. Besides, it is necessary to find out the power loss distribution of inverters to design
an appropriate cooling system. However, the power losses and the power loss distribution
of these three topologies have not been figured out. [...]