title: Using Remote Sensing for Quantity Analysis of Chip Pile Inventory in Mill Yards

contributor:
Runesson, Ulf
Leitch, Mathew
Shahi, Chander

subject:
3D model capture
Bulk density
Compression forces
Error reduction
Mass estimation
Mill yard inventory
UAV imagery
Volume loss
Wood-chip pile

abstract:
An integral part of proper wood chip inventory management is the ability
to accurately monitor wood chip quantities. This thesis examines the use of a
new method of capturing the volume of mill yard wood chip piles through the
utilization of aerial drones. The drones are used to capture images and the
images are converted into digital 3D models, which are then capable of
measuring pile volume. This process allows for conversion of the volume into an
accurate mass estimate by compensating for compression factors within the
chip pile. These factors can change the volume by a maximum of 9.46%, but on
average during simulations and real world applications, most piles exhibit a
change in volume in the range of 1% to 6% difference. By performing the
estimation procedure multiple times and averaging the results this method is
able to generate a result that is more precise, timely and less labour intensive
than the previous methods of using a ground survey to determine volume and
applying a linear volume to mass conversion for the quantity of wood chips. The
results suggest that this averaging technique can improve the standard
deviation spread from over 5% variation in the measurement to less than 2%.
This new method combines multiple techniques to improve both overall
accuracy and precision. Each stage of the new method was examined to determine the accumulated degree of error. This included looking at operator
error of about 2.4%, considering the precision of 3D volume capture, which adds
on average of 5% to 10% error, understanding the variation in bulk density due
to pile shape, and size, which adds 1% to 6% error, using different 3D software
modeling for measuring pile volume, which adds about 4% error. Combined
together in extreme cases, these errors can skew the results by over 20%. The
results of this examination provides research-based recommendations as to
how to collect the images, generate the models, and process the data for mass
estimation and improve error reduction at all stages.


title: Investigation of responses of age-group swimmers during training

subject: Swimming (Training)

abstract:
The purpose of this study was to monitor a series of multidisciplinary
indices associated with swimming performance in age-group
swimmers throughout a period of serious training. Three female
and three male members of the Thunder Bay Thunderbolts Swim Club,
Thunder Bay, Ontario were the subjects of this nine week investigation
The test protocol measured 1) height, 2) weight, 3) skinfold measurements,
4) resting heart rate, 5) resting blood pressures, 6) hemoglobin,
7) hematocrit, and 8) M.C.H.C. A sociological scale, a psychological
inventory, and a stress index were included. Graphical analyses were
used. Changes had to be visually obvious to be recognized. The
results showed that 1) variations were unique to the individual
subjects, 2) individual responses were independent of the training
load, 3) intra-subject parameters varied within ranges unique to each
individual, 4) individual, rather than group assessments, may be
necessary, 5) longitudinal testing data is necessary , 6) testing
protocols unique to an individual athlete might be specified, and
7) ranges of tolerance rather than finite data points may more
accurately measure an athlete's adaptation to a state of training.


title: Lignin-based flocculant and dispersant for wastewater treatment

contributor:
Fatehi, Pedram
Liao, Baoqiang
Rakshit, Sudip

subject:
Lignin
Kraft lignin
Wastewater contaminants
Flocculants
Flocculation process
Copolymers
Free radical polymerization
Kaolin
Bentonite

abstract:
The wastewaters produced from different industries contain fine and charged suspended particles and other impurities. Today, the removal of these colloidal particles from the wastewater has become a serious challenge for industry. Flocculation of the fine particles using polymers followed by settling is a popular technique in industry. Synthetic flocculants have been used in wastewater treatment systems, which are not biodegradable and eco-friendly. Therefore, natural based flocculants have been attracting wide interest of researchers because they are of biodegradable and are environmentally friendly.
In this study, kraft lignin derived from black liquor of kraft pulping process, was copolymerized with acrylamide (AM) and (2-methacryloyloxyethyl) trimethyl ammonium chloride (DMC) in an aqueous solution in the presence of as an initiator potassium persulfate (K2S2O8) to produce a water-soluble lignin-based copolymer. The influence of the reaction conditions on the charge density and solubility of resultant lignin copolymers were investigated. The resultant lignin copolymer was characterized by Fourier transform infrared (FTIR) spectrophotometry, nuclear magnetic resonance (HNMR), thermogravimetric analyzer (TGA), molecular weight and elemental analyses.
The applications of the resultant copolymer as a flocculant in kaolin and bentonite suspensions were systematically assessed. The flocculation studies allowed for correlating the polymer characteristics, namely the charge density and molecular weight, with its adsorption affinity as well as the zeta potential and relative turbidity of kaolin and bentonite suspensions. This study showed that a highly charged cationic lignin adsorbed more than low charged ones, and an increase in the molecular weight of cationic lignin enhanced its adsorption. Thus, cationic flocculants with higher molecular weights and charge densities were more effective in reducing the turbidity of clay suspensions.
One of the important findings of this work was that both polymer bridging and charge neutralization mechanisms facilitated the destabilizing of the colloidal particles to form flocs. An improved reflocculation ability of cationic polymers was observed as the molecular weight and charge density of the polymers increased. The flocculation studies also confirmed that the iii
flocculation efficiency of these cationic lignin polymers depended on the adsorbed amount of polymer on kaolin and bentonite particles, but not on the unadsorbed amount present in the suspensions.
In this study, the flocs size and structure of cationic lignin in kaolin suspension was determined by a focused beam reflectance measurement (FBRM) and the results were correlated with flocs properties obtained by small-angle laser light scattering technology (SALLS). The results showed that the flocs produced were larger and more porous as the polymer's charge density and molecular weight increased. Also, the flocs strength decreased as the flocs size increased. A strong correlation between the size of flocs and sedimentation behavior of kaolin suspension was established by a vertical scan analyzer. The results demonstrated that the maximum rate of settling increased with the increase in floc size.
The effect of solution pH and salt concentration on the dispersant performance of anionic kraft lignin in kaolin suspensions was also studied. The adsorbed anionic kraft lignin on kaolin particles induced electrostatic repulsion between the particles at a more basic pH and thereby improved the dispersibility of suspensions. The results showed that the adsorption of lignin polymers decreased with pH increase, but increased with ionic strength increase.
In this study, the mechanism of self-assembly of kraft lignin-based polymers in aqueous solutions was investigated using dynamic light scattering (DLS) and the results were correlated with conformation and viscoelastic properties of the adsorbed polymer layers on particles via Quartz crystal microbalance with dissipation (QCM-D) analysis. The results showed that a higher molecular weight lignin polymer was adsorbed in a greater quantity, and that more mass interacted as the molecular weight increased.
The results in this work provided insights into the fundamental understanding of the flocculation, dispersion and self-assembly behavior of kraft lignin-based polymers in various systems. These results can help establish the criteria for selecting and developing kraft lignin based flocculants or dispersants for altered applications. The results of this thesis contributed to knowledge on the chemical modification and characterization of lignin products and to the fundamentals associated with the performance analysis of flocculation and dispersion systems.


title: Teacher perceived barriers to implementing regular daily physical activity in Simcoe County elementary schools

contributor:
Johnson, Michel
Martin, Lynn

subject: Physical education for children Ontario Simcoe County

subject: Exercise for children Ontario Simcoe County

subject: School children Recreation Ontario Simcoe County

abstract:
Background:
Teachers in Ontario are expected to implement 20 minutes of daily physical activity
(DPA) into their daily programming, due to the Ministry of Health Promotion guidelines adapted
in 2006. This study examined whether or not teachers perceived barriers to implementing the
daily 20 minutes of DPA, and if so what those barriers were. This study also examined potential
solutions to these barriers in order to enable teachers to successfully implement the DPA into
their programs.
Methods:
A survey was distributed to a convenience sample of 137 certified elementary school
teachers from a public school board in Simcoe County. Participants were asked to rank several
previously identified barriers to DPA and possible solutions using a five-point Likert-scale.
Participants were also asked two open-ended questions in order to gain further information on
any other perceived barriers not mentioned in the survey, and also on any other solutions not
mentioned in the survey. The quantitative data was analysed and the open-ended questions were
transcribed, examined, and themes were generated.
Results:
Teachers reported four main barriers to DPA implementation: lack of time due to other
curriculum pressures, lack of resources, lack of space, and lack of staff and student “buy in” to
DPA. Participants also indicated many possible solutions to DPA barriers, including: activities
that utilize minimal equipment, music resources, exercise videos, whole school DPA approach.
and student leaders for DPA.
Conclusion:
Many of the solutions indicated by participants are inexpensive, easy to implement, and
will be successful in reducing the effect of many of the important barriers to DPA examined in
this study.


title: Low temperature epitaxial growth of III-Nitride semiconductors on silicon carbide templates by remote plasma metal-organic chemical vapor deposition

subject: Silicon carbide

abstract:
Group III-Nitride (III-N) semiconductors are of high interest due to their thermal and electrical properties. Opposed to other III-V group semiconductors III-N semiconductors are hexagonal wurtzite structures that have a direct bandgap across the entire composition range. This wide bandgap range covers from the deep ultra-violet to the infrared region of the electromagnetic spectrum. This makes the III-N semiconductor group ideal for LEDs, laser diodes and photodetectors.
This thesis presents an in-depth study to the growth of III-Nitrides on Silicon Carbide (SiC) templates. Due to the difficulty in growing bulk crystals for the III-Nitrides, non-native substrates must be used. Because of this, there exists a lattice mismatch between the substrates and thin films grown on top. SiC proves to be an ideal substrate as the lattice mismatch is around 3.5%. Thin films of III-N were grown upon commercially purchased SiC templates using remote plasma enhanced metal organic chemical vapor deposition (RP-MOCVD) in the Lakehead University Semiconductor Research Lab. Results were characterized using x-ray diffraction (XRD), atomic force microscope (AFM), Energy-dispersive X-ray spectroscopy (EDX) and Ramen spectroscopy.


title: Site quality evaluation of jack pine in Northern Ontario using site-index curves

subject:
Site index (Forestry) Ontario, Northern
Jack pine Ontario, Northern
Forest site quality Ontario, Northern.
Stem analysis
Polymorphism
Non-linear regression

abstract:
Jack pine stem analysis data from 383 fully stocked, mature, undisturbed
plots were collected from studies located in four Ontario Ministry of Natural
Resources regions (Northeast, Northern, North Central, Northwestern) and four
broad landforms (lacustrine, glaciofluvial, morainal, shallow depth to bedrock).
Comparisons of height-growth patterns in the regions and in the landforms were
made using covariate analysis for nonlinear equations.
Several different height-growth models and site-index prediction models
were fitted to stem analysis data from 323 plots; the remaining 60 plots were
used as verification plots. Results show that height growth was best described by
a model developed by Ek (1971) and later modified by Newnham (1988). The
95% prediction interval for differences (observed - predicted) were within +/-
1.39 m and -i-/- 1.59 m for the computation and verification data sets
respectively. A linear model developed by Monserud predicted site index
better than an exponential or difference equation. But site-index predictions
made indirectly from Newnham's height dependent model were as accurate as
using the linear Monserud model. Early growth before 20 years breast-height X
age (BHA) was highly variable and resulted in poor prediction of site index at 50
years. Site index prediction intervals for data older than 20 years BHA were
within +/- 1.69 m.
Jack pine height-growth patterns were similar among regions, but some
significant differences were found among landforms. Jack pine growing on
good sites on all landforms had similar height-growth patterns. But significant
differences in height-growth patterns were found on poor quality sites; the upper
asymptote flattens more sharply on shallow soils when compared to
glaciofluvial soils. Height-growth patterns were similar to patterns found for other
studies in North Central Region (Lenthall 1986, Carmean and Lenthall 1989,
Goelz and Burk 1992). Results show that the anamorphic curves developed by
Plonski (1974) slowed more rapidly after index age as site quality decreased.
Jack pine height-growth patterns in Ontario are similar to published curves from
other areas in Canada with the exception of more rapid early growth on poor
quality sites and a flatter upper asymptote on good sites.


title: The effects of propagational factors on quantum wires in close parallel proximity

subject:
Quantum electronics
Semiconductor technology
Electron wave

abstract:
Recent advances in semiconductor technology have made it
possible to produce devices of such small size that electronic
conduction through these devices is dominated by the quantum
properties of the electron. The fact that an electron
travelling through such a device is unaffected by scattering
and is able to retain coherence, has received some attention in
recent literature [1-3]. The ability to guide an electron wave
in quantum wires has in particular opened up opportunities for
device applications which are based on the wave nature of the
electron.
In this paper we wish to investigate the propagation of an
electron wave along the length of two coupled quantum wires. We
assume that the wires are sufficiently long and straight, and
that they run parallel to each other. These assumptions allow
the neglect of the end effects of the wires on the electronic
motion and offer considerable simplicity in the calculations.
The quantum nature of the wires arises due to smallness of the
cross sectional area of the wires which is usually of the order
of 100 Angstroms in length in any direction. The wires are defined in terms of two quantum wells such that the electron
motion is restricted in the direction transverse to the length
of the wire and is unrestricted along its length. We assume
that the wires are sufficiently close to each other that an
electron wave introduced in one of the wires is able to tunnel
itself into the other. The wave could in fact oscillate back
and forth between the wires. The frequency of osxillations will
depend on the width and depth of the quantum wells and the
distance separating the wires. In addition to these parameters,
the frequency is also affected by the effective mass of the
electron if it is different within and outside the wires [4-5],
a situation which can frequently arise. In this situation we
will show that the motion of the electrons in the parallel and
perpendicular directions become coupled and that the frequency
of oscillations of the electron wave depends on the motion of
the wave'parallei to the wire. It is the main aim of this paper
to investigate the effect of the changes in the electron
effective mass on the frequency. In addition we wish to obtain
the dependence of the frequency on the distance between the
wires, and the potential depths and width of the quantum wells.


title: Investigation of anthropometric, physiological and strength responses of physically disabled adult male wheelchair basketball players during training

contributor:
Widdop, J.H.
Song, T. M. K.

subject:
Wheelchair basketball
Exercise Physiological aspects
Muscle strength

abstract:
The purpose of this study was to monitor anthropometric,
physiological and strength responses of six physically disabled
adult male wheelchair basketball players during training. An intrasubject
case study research design was selected because of differing
levels of disabilities and individual variability of responses during
training. A repetitive bi-weekly testing schedule for anthropometric
measures, cardiopulmonary function, grip strength, arm flexion and
extension strength was followed. The six-week wheelchair basketball
training schedule was two evenings per week of two hour duration.
This study was descriptive, and nonstatistical in nature. Results
were presented in tabular and graphical form so individual responses
could be observed. The results indicated individual variability of responses to test parameters. However, consistent responses noted
were: a reduction in body weight, a decreased mean heart rate
response to the same power out-put on a wheelchair ergometer, a
decreased initial heart rate in supine and sitting positions, and an
increase in grip, arm flexion and extension strength tests.


title: Ghosts of Margaret Atwood and Henry James : an analysis of the relationship between surfacing and "The Jolly Corner"

abstract:
In the writing of several critics and scholars comparisons have been
made between Margaret Atwood^s Surfacing and the supernatural tales of
Henry James. This present study is based on the special relationship
that appears to exist between Surfacing and James’s final ghost story,
’’The Jolly Corner." By comparing the novel and the story and the significance
in both of their psychological ghosts, it is quite obvious that they are
remarkably similar; therefore, they invite similar critical approaches,
In this study the attempt to analyze Surfacing uses as a foundation the
psychological interpretation of "The Jolly Corner" by psychologist Saul
Rosenzweig. Rosenzweig has identified the ghost in James’s short Story
as one representing a portion or fragment of the author’s self whose
origin can be traced to James’s decision to emigrate from America, When
a similar approach is taken to Atwood’s Surfacing, the conclusion reached
is that the ghost in the novel represents a portion of Atwood’s self that
began to haunt her after the rejection of her first unpublished novel.
Up in the Air So Blue.


title: Lived experience of spirituality and childhood trauma among four adult survivors, for whom spirituality was significant

subject: Childhood trauma & spirituality

abstract: Study draws on the experience of 3 women and 1 man, from the Kenora (Northwestern Ontario) area, who experienced childhood sexual, physical, emotional or verbal abuse associated with physical illness, accidental injury, or family violence.

abstract:
The goal of this research is to explore the lived experience of spirituality and childhood
trauma among four adult survivors, for whom spirituality is significant: In do so, the research
explores both the influence childhood trauma had on the survivors’ spirituality, as well as the
role spirituality plays in the their healing process. A phenomenological model of qualitative
research is used to investigate the experience fi:om the perspective o f the participants. The
collective experience is described using thematic analysis of the common and unique themes that
emerged from open-ended interviews with each participant
The participants reported that the immediate impact of childhood trauma experience(s) on
their spirituality was varied. One participant found that an immediate positive influence of
childhood trauma involved a strengthening o f her relationship with Spirit/God/Creator. Two
other participants experienced unique extra-ordinary influences as a direct result of the trauma
incident All of the participants experienced at least some degree of negative influence on their
spiritual self.
Spirituality played an extremely important part in the healing processes of all of the
participants: influencing their mental, physical and emotional self; their relationships with other
people; their relationships with Spirit/God/Creator. The participants were able to identify
specific spiritual practices and processes that they used to support their healing process.
The findings of this exploratory study suggest the following: spirituality may be a critical
resource for the survivor in the healing process; the influence of childhood trauma and
spirituality are dynamic and changing over time; there may be a reciprocal relationship between
spirituality and childhood trauma where in, each has the capacity to influence the other,
spirituality may provide the survivor with a framework of meaning; spirituality may be an
integral part of the whole person; spirituality may be developed and nurtured in a multiplicity of
ways. The implications for social work practice are as follows: social workers may want to
consider addressing issues of spirituality with survivors of childhood trauma, as this is an aspect
of the person that is influenced. In situations where spirituality is significant for the survivor,
social workers may want to consider assisting the survivor to draw on the resource of the
survivor’s spiritual capacity.


title: Evaluating Wilderness Perception Mapping with the addition of 3D analysis : a case study in Pukaskwa National Park

contributor:
Lemelin, Harvey
Maher, Patrick
Dawson, Jackie
Johnston, Margaret

subject:
Geographical perspective
Wilderness perception mapping
3D analysis & park management
Wilderness area users
Pukaskwa National Park

abstract: This research analyzed the wilderness area in Pukaskwa National Park with the use of the Wilderness Perception Mapping methodology. The research developed and employed a modified version of the Wilderness Perception Mapping methodology to provide wilderness perception mapping using the third dimension to analyze locations of visual impact. The locations identified with the traditional and modified Wilderness Perception Mapping methodologies were used as a basis for comparison between the two Wilderness Perception Mapping methodologies and with the established wilderness zone identified by Pukaskwa National Park. The methodology from the traditional Wilderness Perception Mapping was utilized in conjunction with 3D analysis techniques to spatially identify potential wilderness areas based on visual ability. When compared to the traditional Wilderness Perception Mapping methodology, viewshed analysis within a GIS generated spatial locations of potential wilderness which significantly increased wilderness areas. Further viewshed analysis was conducted to implement natural visual barriers from forested areas and compare the results to the previous two analyses, which resulted in increased potential wilderness areas within Pukaskwa National Park.


title: Reactions of 1, 2, 5,-triphenylphosphole and its oxide, sulphide and selenide with Nb(V) and Ta(V) halides

contributor:
Holah, D. G.
Hughes, A. N.

subject:
Transition metal halides
Phospholes
Triphenylphosphole


title: Nanomaterial-based Electrochemical Sensors for the Detection of Glucose and Cholesterol

contributor:
Chen, Aicheng
Qin, Wensheng
Leung, Kam
Kerman, Kagan

subject:
Electrochemical detection
Nanoscience development
Biosensor construction
Glucose
Cholesterol

abstract: Electrochemical detection methods are highly attractive for the monitoring of glucose, cholesterol, cancer, infectious diseases, and biological warfare agents due to their low cost, high sensitivity, functionality despite sample turbidity, easy miniaturization via microfabrication, low power requirements, and a relatively simple control infrastructure. The development of implantable biosensors is laden with great challenges, which include longevity and inherent biocompatibility, coupled with the continuous monitoring of analytes. Deficiencies in any of these areas will necessitate their surgical replacement. In addition, random signals arising from non-specific adsorption events can cause problems in diagnostic assays. Hence, a great deal of effort has been devoted to the specific control of surface structures. Nanotechnology involves the creation and design of structures with at least one dimension that is below 100 nm. The optical, magnetic, and electrical properties of nanostructures may be manipulated by altering their size, shape, and composition. These attributes may facilitate improvements in biocompatibility, sensitivity and the specific attachment of biomaterials. Thus, the central theme of this dissertation pertains to highlighting the critical roles that are played by the morphology and intrinsic properties of nanomaterials when they are applied in the development of electrochemical biosensors.


title: Formational processes of recent, arsenic rich, ferromanganese lacustrine precipitates in Nova Scotia and Northern Ontario

subject:
Water chemistry
Geochemistry
Microbiology
Nodule growth models

abstract:
Banded iron - and manganese - rich precipitates were collected from the lake bottoms of Lake Charlotte (Nova Scotia), Lake Shebandowan (Ontario) and Sowden Lake (Ontario). Investigations of study areas at the macro, meso and micro scale were conducted to understand the iron-manganese rich- nodules in their natural environment. The nodules appear as circular precipitate bands which alternate between high concentrations of iron and manganese. Analysis of precipitates revealed that those from Lake Charlotte are highly concentrated in arsenic. Lake Shebadowan and Sowden Lake samples are highly concentrated in phosphorous.
Correlation between iron, arsenic and phosphorous suggests oxidation and precipitation of these elements in the same bands of the nodule. Iron relies on the Eh and pH of an environment to precipitate from solution. At a redox boundary in a near neutral environment, iron is able to oxidize as a sediment coating and co-precipitate arsenic and phosphorous from the water. An affiliation between manganese, barium and cobalt suggests precipitation of these elements in the alternate bands present in the nodule. Barium and cobalt are able to co-precipitate with manganese by either penetrating a manganese oxide by means of protonation, or oxidize and become interchangeable with Mn4+.
The growth of the nodules at Shebandowan and the majority of Lake Charlotte sites were probably affected by a redox boundary created by the diffuse upward flow of groundwater with lower Eh than the oxidized lake water. It is likely that photosynthetic and iron and manganese oxidizing microorganisms are present in a bacterial mat covering the nodules and probably played a role in their precipitation. Analysis of the growth mechanisms of precipitates revealed in Sowden Lake and the Granite Islands site of Lake Charlotte were inconclusive.


title: Aspects of infectious agents and cancer : effects of human Papillomavirus 16 and Escherichia coli on the innate immune defense of human keratinocytes

contributor:
Zehbe, Ingeborg
Khaper, Neelam
Schraft, Heidi

subject:
Papillomaviruses
Cancer research
Cervical cancer
Escherichia coli
Keratinocytes

abstract:
Persistent human papillomavirus (HPV) is the causative agent of cervical cancer and bacterial vaginosis (BV) caused by Escherichia coli (E. coli ) has been implicated as a contributing factor. The innate immune system is our body's first defense against these invading pathogens. Using a novel 3-D organotypic tissue culture model to recreate the viral life cycle of HPV16 we examined mRNA expression of crucial innate immune molecules such as integrins, toll-like receptors (TLRs), and interferons (IFNs). Our model was comprised of normal immortalized keratinocytes (NIKS) and NIKS containing full-length HPV16 (NIKS+HPVI6). These models were also exposed to E. coli , which simulated a BV infection. Models were characterized by examining morphology via hematoxylin and eosin (H + E) staining, keratin expression, DNA synthesis, and viral gene and protein expression. Extraction methodologies were optimized prior to continuing experiments. Extracted RNA was reverse transcribed into cDNA and mRNA was detected for α and β integrins, toll-like receptors 3, 4, and 9, and their downstream molecules interferons -β, -γ, and -λ. Integrin expression was the highest in the control NIKS samples. Expression of α5 integrin was significantly increased in NIKS+E. coli compared to NIKS, which implicates its role in facilitating bacterial infections. Expression of α5 significantly decreased in HPV16 positive samples that could be associated with the increase in proliferation found in HPV infected tissues. Expression of TLRs showed similar trends to previously published data, indicating decreases in all TLRs in HPV16 positive samples. An increase in TLR3 was found in samples containing E. coli , which implicates the role of TLR3 in facilitating E. coli infections.
IFN-β was found to increase in the presence of E. coli and HPV16 and this could be associated with the expression of E7, an event that has been implicated in increasing IFN-β production (previously unpublished results). Expression of this interferon was truly unique as it was upregulated in samples exposed to E. coli , while no change was seen in NIKS and NIKS+HPV16 samples. Implications of IFN-β have yet to be elucidated and further investigation into their role in established carcinoma cell lines as well as ex vivo tissues would be ideal. The use of a novel tissue culture model in assessing the status of innate immune molecules provides a new vehicle of investigation. Further investigation into both the adaptive and innate immune response could lead to better treatment options for those affected by persistent and non-persistent HPV infections.


title: The Canadian Forces and American military influence, 1963-1989

subject:
Canadian military
Canadian Forces
United States military
American military influence

abstract:
The 1963 to 1989 period witnessed a rapid change in Canadian defence matters.
During this period the Canadian government forced the military away from its traditional
ally the United Kingdom and moved it closer to the United States (US). The Canadian
governments of Lester B. Pearson, Pierre Elliott Trudeau, and Brian Mulroney attempted
to create and retain a distinctive military with a truly ‘Canadian’ organization and with
new Canadian military traditions. However, in the process of attempting to create a
distinctive ‘Canadian’ military, all three of these governments moved the Canadian
Forces (CF) closer towards the US military. While US defence and government officials
welcomed an increased defence cooperation between Ottawa and Washington, they were
often not responsible for the burgeoning ties between the US and Canadian armed forces.
Moving the CF closer towards their American counterparts enabled Ottawa to keep its
defence budget relatively stable without any drastic increases because of the promise of
support from the larger US military. More importantly, this movement towards the US
enabled all three prime ministers to continuously assure Washington of Canada’s abilities
to help defend North America and participate in the cooperative NATO defence of
Western Europe. Becoming a ‘strategic liability’ for the US in Western defence would
have had grave consequences for Canadian sovereignty. For the Canadian government
during this period, the only way to ensure Canada did not become a liability was to have
the CF work closely with the US. As a result, Canadian defence policies during the Cold
War strove to ensure that Canada was able to participate with the US in the defence of the
West.


subject:
developing countries
employment

abstract: "Theories of employment and developing economies" is an attempt to prove that the existing employment theories are not applicable to developing countries, and to propound a wage-goods gap theory as a suitable alternative for the expansion of employment opportunities in these countries.  The study is based on the following four assumptions.  Firstly, the model is more like a densely populated economy of the Asian type rather than a sparsely populated economy of the Latin American or of the African type. Secondly, as it is common to almost all developing countries, from 50 to 80 percent of the labour force in engaged in the agricultural sector comprising a vast magnitude of disguised unemployment.  Thirdly, the terms "employment" and "output", and, for that matter, the terms "economic development" and "growth" have been used interchangeably. And finally, institutional factors have been assumed to be neutral in the sense that they do not [unreadable] any tendency toward expansion of employment or output.  The study has been divided into three parts where each part is a logical development of the preceding part.  Part I discusses the theories of employment as they exist without examining their validity in the context of the conditions prevailing in developing economies.  In that sense, this part provides the raw materials which have been used for further analysis in Part II and Part III. Part II, which is also the theme of this paper, attempts to examine the relevance of these theories to the conditions of the developing economies and thereby to identify the points which are relevant and those which are not.  Part III, which is a logical extension of Part II, examines the main thesis, that it is the shortage of real liquid capital and not of real fixed capital which is the main hurdle in the entire process of employment expansion in these countries.  This part goes further to examine the recently experienced green revolution in some of the developing countries and its latent potentials for provided surplus wage-goods.  The study concludes with a note of optimism so far as the chances of their success are concerned in their efforts to expand employment opportunities.


title: Synthesis of model compounds related to the tetranortriterpenes

subject: Terpenes

abstract:
In this thesis some preliminary studies
have been described, which were aimed at the
synthesis of compounds in which a 3-substituted
furan is attached to a 6-lactone ring so as to
yield structures of the type observed in the
naturally occurring tetranortriterpenoids (e.g.
see structures [8] till [13] on pp. 2 and 3).
In an introductory literature survey various
types of naturally occurring 3-substituted furan
compounds have been described, and an outline has
been given of some of the possible approaches to
the synthesis of compounds containing a part
structure [12] (p.3).
Since 3-halofurans are essential starting
materials for such a synthesis, the effectiveness
of some preparations of 3-iodofuran and 3-bromofuran
as reported in the literature has been studied.
The reactions of 3-furyl^lithium and 3-
thieny1-lithium with aldehydes and esters led to
the isolation of coupling products, which were
studied in some detail.
Thus, oxidation of the alcohols obtained in
this way gave information on the relative stabilities of this type of compounds under oxidising conditions. A mass spectrometric study of these
model compounds led to the observation of some
interesting fragmentation patterns which are discussed
in detail.
Finally, various reactions are discussed
which were directed towards the preparation of
derivatives of a-tetralone, which could be used
in similar coupling reactions, in order to arrive
at the desired 3-furyl-lactone structure. These
modifications of the a-tetralone molecule were
largely unsuccessful. Therefore, the discussion
is concluded with an examination of the reasons
for these difficulties, and some suggestions are
made with respect to future studies in this area.


title: Natural resource management and Indigenous food systems in Northern Ontario

contributor:
McLaren, Brian
Burnett, Kristin
West, Doug
Smith, Peggy
McPherson, Dennis

subject:
Indigenous food systems
Natural resource management
Food sovereingty
Forest management
Aboriginal and Treaty rights
First Nations
Social enterprise

abstract:
The forests and freshwaters of Northern Ontario are complex
socio-ecological systems that have provided opportunities to
sustain local lives, economies, and cultures since time
immemorial. Through nation-to-nation agreements, Indigenous
nations ceded land title to the Crown through treaties in which
the Crown promised them enhanced livelihood. The treaties
articulated the rights of each party to share access to these lands,
and the Canadian courts continue to describe the nature and extent
of the rights of each party as well as their duties and
responsibilities. Despite great developments in Canadian society,
descendants of the Indigenous treaty signatories have experienced
disproportionately high rates of unemployment, negative health
outcomes, low education rates, and increased food insecurity. The
legislative framework guiding Crown land management in Ontario
is strongly rooted in Canada’s colonial past; thus the Indigenous
land user’s access to foods is largely disassociated from the
perspective of the Crown land manager.
This research explores assumptions associated with Crown
forest management in Ontario based on the purposes of the Crown
Forest Sustainability Act, with specific objectives linking
participant action research with independent thesis-action
research. Community-based research priorities are reflected in
in each chapter within the context of Indigenous food systems and
natural resource management in Northern Ontario.
The major findings of this research confirm that if meeting
social, economic, and environmental needs of present and future
generations is the purpose of Crown forest management, then based
on experiences of Indigenous land users, the paradigm in which
natural resource management occurs should be re-evaluated. The
researcher provides recommendations for forest managers,
including shifting the current knowledge paradigm from the
primarily quantitative approach to a more holistic paradigm that
includes qualitative information. To achieve this recommendation,
the need to reform required training for forest management
authorities, to include Indigenous worldviews as well as Aboriginal and Treaty Rights. Furthermore, in order to meet the
needs of Indigenous land users, the natural resource management
paradigm should be expanded to include food system management.
Finally, lessons learned from the research project are presented
as the 4Rs for rebuilding food sovereignty: reclaim, reorganize,
re-skill, and restore.


title: Geology, geochemistry and geochronology of the Hemlo East property, Schreiber-Hemlo Greenstone Belt, Ontario

subject:
Geochemistry
Geochronology
Geological time
Northwestern Ontario
Hemlo East property

abstract:
The Hemlo East property is located approximately 50 kilometres east of the
town of Marathon, Ontario and is situated within the Schreiber-Hemlo greenstone belt
of the Wawa-Abitibi Terrane of the Archean Superior Province. Lithologies within the
Hemlo East Property are broadly divided into mafic metavolcanic, felsic metavolcanic,
metasedimentary, intrusive and metaintrusive rocks. Stratigraphic continuity within
the study area is demonstrated by the large number of drill holes in the area. Rock
staining indicates that the K-feldspar present in felsic metavolcanic rocks in the
Gouda-Thor-Carroll area of the Hemlo East Property is a product of alteration likely
associated with base metal and gold mineralization.
New major and trace element, Sm-Nd isotope, and geochronology data are
presented for volcanic, plutonic, and metasedimentary rocks of the Hemlo East
property to investigate their origins. Positive to negative εNd (-1.14 to 2.15) for tholeiitic
basalts indicate that they were derived from depleted to moderately contaminated
sources. FI rhyolites with steep trace element patterns (La/Ybn = 16 to 44) and
fractionated HREE (Gd/Ybn = 2.1 to 7.5) are interpreted to have been derived from a
deep mantle source. Metasedimentary rocks are geochemically similar to felsic
metavolcanic rocks and are interpreted to be derived wholly, or in part, from a felsic
source.


title: Effects of a formal mentoring program on teacher retention and benefits to proteges and mentors

contributor:
Courtland, Mary Clare
Epp, Juanita

subject:
First year teachers Ontario
Teacher turnover Ontario
Teaching Vocational guidance Ontario

abstract:
This thesis is an evaluation research study into the effects of a formal mentoring program
on teacher retention and the benefits to mentors and protégés. The program studied took
place in the Keewatin-Patricia District School Board in Northwest Ontario during the
1999-2000 school year, and involved the collection and subsequent examination of
experiential data collected from participants in the program. The respondents included
experienced teachers who served as mentors and new or beginning teachers who were the
protégés. A review of the literature outlined the benefits to mentors and protégés as well
illuminated such issues as mentor selection and training and descriptions of several other
mentoring programs. Further, characteristics of mentor teachers are discussed. The data
collected are coded into categories based on benefits to mentors from a personal as well as
a professional viewpoint. Benefits to protégés are discussed in terms of qualities of mentor
teachers, technical support provided, and communication between mentors and protégés.
Teacher retention is defined by school board statistics relating to the number of beginning
teachers who made the decision to continue teaching with the school board the following
year.


title: Advances in recycle mill supervisory control at Avenor Thunder Bay

subject: Pulp recycling operations

subject: Pulper automation and control

subject: Contaminant removal and stickies control

abstract:
This study examined supervisory control systems at Avenor Inc. Recycle Pulp Mill
Thunder Bay making improvements in process control and automation. Supervisory controls
were implemented for improving the control of a talc conveyor metering system to monitor and
regulate the addition of talc to maintain a target talc concentration on mill pulp; in the
implementation of a feed forward pulper discharge consistency control system to improve stock
consistency control during pulper dilution and discharge to the retention chest; and to improve
the operation of the Pulper Head tank Level Control System to reduce the impact of pulper head
tank inventory changes on grey water chest inventory control and mill water makeup.
Implementation of the talc supervisory control system achieved the desired steady state control of
the talc concentration and reduced maximum excursions in the mill talc concentration to within
25% of setpoint. The talc control system eliminated the need to replace a malfunctioning density
transmitter, resulting in capital cost savings. Feed forward pulper discharge consistency controls
reduced the variance in phase 5 stock consistency entering the retention chest by 93%,
eliminating undesirable valve oscillation on downstream consistency control loops associated
with the high variability in the pulper discharge consistency. A proposed feed forward pulper
head tank supervisory level controller demonstrated the possibility of reducing the variance in the
pulper head tank feed by over 95%, thereby significantly reducing the impact of pulper head tank
feed flow changes on mill water makeup and inventory control in the grey water chest.
Potential Sources of Flotation Inlet Brightness variation were also examined to determine
the cause of excessive brightness variation and suggest possible solutions through the available
on-line distributed control system mill technology.


title: Design and modeling of a CMOS VCO using wave digital filters / by WeiBo Li.

subject: Metal oxide semiconductors, Complementary

subject: Electric filters, Wave-guide

subject: Electric filters, Digital

subject: Wave digital filters (WDF)

abstract:
Wave digital filters (WDFs) transform an analog network into a topologically equivalent digital structure. A natural application of WDF is the simulation of electric circuits since measurements of any desired node voltages and branch currents are available during all time-steps in WDF structures. WDF structures tend to preserve most of the good properties of their analog counterpart.
In this work, WDF techniques applied to transient simulation are studied. After a review o f the basic theory of WDFs and the treatment of nonlinear elements in WDFs, WDF simulations for different circuits, including a simple RC circuit, an anharmonic oscillator and a CMOS LC voltage controlled oscillator (VCO), are presented. Special detail is put on the design and modeling of the LC VCO. The LC VCO was designed
and fabricated using the TSMC (Taiwan Semiconductor Manufacturing Co., LTD) CMOS 0.1 Sum technology. The linear frequency tuning range of the LC VCO is from 2.526 GHz to 3.015 GHz for control voltages from 0 to 1 V with a 1.712 mA tail current. WDF simulation results are compared with the exact solution if possible or otherwise with the results obtained with other simulation methods. The comparison
shows that WDF techniques are efficient for the simulations of linear circuits and circuits with one nonlinear element. The potential of WDF for the simulation of large networks with many nonlinear elements is also discussed in this thesis.


title: Female nursing students' knowledge and beliefs about the human papilloma virus, its link to cervical cancer, and the importance of cervical screening

contributor:
Steven, Darlene
Jamieson, John

subject:
Human papilloma virus (HPV)
Cervical cancer
Cervical screening

abstract:
The purpose of this study was to conduct a comparative analysis of the knowledge and
beliefs about human papilloma virus (HPV) infection, its link to cervical cancer, and the
importance of cervical screening among a group of female nursing students ages 18 to 24
currently enrolled at a university in Northwestern Ontario. The researcher designed a
questionnaire to compile data on demographics; general health behaviours; and
knowledge of specific, health-related issues of HPV, cervical cancer, and cervical
screening. The questionnaire combined open-ended and closed questions to address the
sensitive nature of some of the questions. Fifty-three percent of the respondents had never
heard of HPV, and more than 50% were not aware that it is a common sexually
transmitted disease (STD). Fifty-nine percent had no knowledge of the common risk
factors for HPV, and 54% had no knowledge that HPV increases the risk of cervical
cancer. Open-ended questions revealed common feelings of fear and embarrassment
among the study participants; despite having these feelings, most respondents recognized
the importance of having Pap smears, with over 80% acknowledging that a Pap smear
detects abnormal cells in the cervix and that women should begin to have Pap smears
once sexually active or by the age of 18. Recommendations included revamping nursing
curriculum on STD prevention education to include HPV transmission, risk factors, the
high prevalence rate of HPV among this age group, and its causal link to cervical cancer;
increasing educational material at university health clinics; and implementing a team
approach with health care professionals on university campuses to provide a continuum
of care for females infected with HPV or displaying other cervical abnormalities.


title: Modeling of PWM boost converters for continuous and discontinuous inductor current modes

subject:
DC-to-DC converters
Pulse frequency modulation
Electric current converters

abstract:
Owing to the relatively more complicated nature of the boost converter with non-ideal
elements and operating in continuous and discontinuous inductor current modes, a
parsimonious large signal and small signal model for this converter, with and without
feedback, has been lacking. In this work, a zero order hold equivalent discrete time
model of the boost converter for computing its small signal frequency response and
large signal and small signal closed loop behavior is developed and experimentally
confirmed. The Newton-Raphson technique is used to accelerate the computation of
the frequency response from the developed discrete time model. The use of the
discrete time model in combination with the Newton-Raphson method in predicting
the steady-state ripple behavior o f the converter is also studied. With the intention of
future robust control studies on the boost converter in discontinuous inductor current
mode, an initial evaluation of the frequency response predicted by the discrete time
model at different operating points is presented.


title: Analysis of current and future Low Impact Development sites in Thunder Bay, Ontario

subject:
Stormwater management
Surface runoff
Urban forestry
Flooding (urban environment)
Thunder Bay flooding

abstract:
The rapid spread of urbanization in Thunder Bay has caused the increase of
impermeable surfaces and the increase in flood incidents within the city. Another
contributing factor to increased flood incidents is due to the lack of tree canopy cover
within the city. Because of increased frequency of intense storm events, stormwater
management measures have been taken in the form of Low Impact Development (LID)
sites to increase infiltration and filtration rates of city precipitation. The number of
current LID sites around town is relatively small and three of these sites have been
herein analysed. The three sites are the Beverley Street LID, D&R Sporting Goods LID
and the McVicar Creek LID. Future LID sites have also been analysed and their effects
hypothesized.


title: Implications of alternative herbicide-use policies for forest management in Ontario

subject:
Vegetation management
Alternatives to herbicides
Forest-level analysis
Variable harvest cost curves
FORMAN

abstract:
Public sentiment is against herbicide use on public forests in Ontario. Provincial
policies are directing research into alternative vegetation management with only
limited interaction or support with forest resource based industries. The
initiative of this analysis was to substantiate or dismiss the hypothesis that a
forest industry could feasibly regenerate a sound wood supply from a forest in
Northwestern Ontario under various herbicide-use limitations. Forest-level
simulation was used to produce 100-year forecast data for thirteen management
scenarios, which covered current levels, reductions in area treated, restrictions
on how and where it could be applied, no use of herbicides, and a shift to a
flexible wood supply.
Results of the wood-supply analysis revealed that the company's wood-fibre
needs from the study forest could be maintained for all scenarios. Due to the
age class structure of the forest and the reasonable harvest levels imposed by
the company, the most important component of the forest model was its
present volume. Thus, even under assumptions of decreased coniferous
volume production resulting from non-herbicide silvicultural treatments, only
slight increases in harvest area were necessary 70+ years into the forecasts.
The wood supply, area treated with herbicides and silviculture cost response
variables provided the information required for sound decisions to be made for a
large array of potential herbicide policy changes. Any strategy derived would
need to meet the new policy's requirements while minimizing impacts on wood
supply and silviculture costs and maintaining a desirable level of flexibility. For
the Seine River forest, a step-wise reduction in herbicide use was determined to
be the most appropriate strategy. This timing conforms well with forecasts of
low need for herbicide treatments and provides adequate time for research and development of environmentally sound, socially acceptable and economically
feasible alternatives to herbicides.
This strategy meets the 20% herbicide use reduction imposed in 1991 and sets
the company in a position to meet further changes. Impacts on both wood
supply and silvicultural costs were shown to be minor.


title: From my sewing basket ... : traditional native healing ceremonies and social work practice with native people

subject: Traditional medicine (Ontario, Northwestern)

subject: Ojibwa Indians Medicine Ontario, Northwestern

subject: Indians of North America (Medicine Ontario, Northwestern)

abstract: Includes a general review of the literature and a study within the District of Thunder Bay in Ontario, Canada. The author has worked with the Healing Our Own Counseling Unit at a Native Women's Crisis Home, has participated in traditional healing ceremonies and has interviewed Elders. Ceremonies include the Pipe Ceremony, Woman's Circle, Sacred Circle, Full Moon Ceremony, Sweat Lodge, Fasting, and Vision Quest. -- leaves 8-10.

abstract:
In 19891 attended a healing workshop called 'Women Healing'. Elder Alana Abosawin, who
has for some years worked with the homeless in Quebec sang a song that told a story about
'bush lady'. The song spoke to me of the truth of my light brown skin and dark hair and the
hidden shame that follows with the lineage of the Indian woman. It frightened me. Today I
know the past is our past, my past, their past. In that totality I seek awareness, clarity and
acceptance. It was her eyes that were a thousand years old who saw through me and beyond
me. It was the words of her song and the beat of the drum which summoned me from my place
of slumber and began the journey towards understanding.
Prior to any substantial influence by the Elders and Native people, I was drawn to a profession
which as I understood was based on caring and giving of oneself. Dave Henry, an M.S.W,
was influential in his work with the ideals behind unconditional care (Brown, J., 1978).
Amongst Native and non Native people I observed examples of human kindness which served
as a constant source of power generating an atmosphere of what I understand today as healing.
This was in the acceptance, in the goodness of others and die strength that comes from being
in a place of complete absence of judgment, without prejudice and with a firm willingness to
believe, accept and listen. It was there that I was told that it would be beneficial to work with
my own people. It was the first place that I observed Non-Native professionals give complete
respect and recognition towards the Native helper. They recognized the ability of the Native
person to work effectively and meaningfully with their own people.
This thesis is a search for understanding, a quest for direction and a vision of what can exist
for Native women, their families and communities. This is for those who come to the circle,
who place their trust in each other and in the Creator to search for the things necessary so we
can reach back with something good and strong.


title: Hybrid deep learning with stacked dilated causal convolutions for health forecasting using multivariate time-series data

subject:
Forecasting
Health forecasting

abstract:
Health forecasting using time-series data facilitates preventive medicine and healthcare interventions by predicting future health events. This thesis introduces a novel
hybrid deep-learning architecture for health forecasting that combines the Stackeddilated-causal Convolutional Neural Network and Bidirectional Long Short-Term Memory (SCNN-BiLSTM). Stacked-dilated-causal Convolutional Neural Networks provide
full history-coverage of the input window while maintaining the causal structure such
that each output in a temporal sequence depends on all previous elements. Two
use-case scenarios were studied to examine the effectiveness of the proposed SCNNBiLSTM architecture: (1) hospital admission forecasting for mental health patients
and (2) infectious disease forecasting.
In hospital admission forecasting, the number of admissions for mental health patients at the Thunder Bay Regional Health Sciences Centre was predicted using multivariate time-series data. In the one-step forecast, the CNN-BiLSTM hybrid model
outperformed various statistical and neural network techniques. Consequently, this
hybrid model involving a standard CNN was compared with the proposed SCNNBiLSTM to determine if having full history-coverage improved forecasting performance for long-term forecasting. This experiment revealed that the SCNN-BiLSTM
outperformed the standard CNN-BiLSTM hybrid model for multi-step forecasting. [...]


title: Language retention among the members of the French Club in Thunder Bay

subject: French language Ontario


title: Study of heteroaromatic enediyne and substituted benzothiophene synthesis with a study of unusual H NMR signals in neomenthyl halides

subject:
Heterocyclic chemistry
Halides
Enediynes

abstract:
The synthesis of a number of heteroaromatic enediynes has been examined using
the Sonogashira coupling reaction. Alkynes were coupled to 2,3-dibromothiophene to
yield a number o f hetero- and homo-disubstituted enediynes. Both thermal and
photochemical Bergman cyclizations were attempted with these enediynes in an attempt
to produce substituted fused bicyclic heteroaromatic products. Through this method,
benzothiophene was prepared. The enediyne functionality and its cyclization is of
synthetic interest given that a variety of naturally occurring compounds containing this
unit demonstrate the ability to cleave DNA.
In addition, a solvent effect study on neomenthyl halides was undertaken. In this
study, the effect of various solvents on the ’H NMR spectra of neomenthyl halides was
investigated. During the course of the study an unusual low field proton resonance was
discovered.


title: A review of engineered wood products in Canada

subject:
Engineered wood products
Glulam
Laminated veneer lumber
Oriented strand lumber
Cross laminated timber
Mass timber construction

abstract: Engineered wood products, such as Glulam, Laminated Veneer Lumber, Oriented Strand lumber and Cross Laminated Timber, are increasingly being utilized for construction purposes both domestically and abroad. Mass timber building projects have been increasing in Canada through a variety of government – funded building initiatives and private sector research. The National Building Code of Canada has historically been a limitation for mass timber building structures which primarily use engineered wood products, however recent updates to the code allow for taller wooden structures. Ontario, British Columbia and Quebec now allow 6 storey wood framed buildings. Showcase projects, using exemptions in the code, such as Brock Commons Tallwood House (18 storeys) in Vancouver, B.C. have demonstrated the benefits of mass timber construction. Overall the engineered wood products industry in Canada has been improving since the recent recession, and is expected to improve with new research and developments in engineered wood products.


title: The effect of Bacillus thuringiensis serotype kurstaki (Btk) as an insecticide on jack pine budworm in the 2019 Northern Ontario spray program in comparison to historical use

subject: Jack pine (Pinus banksiana)

subject: Budworm

subject: Bacillus thuringiensis seryotype

subject: Biological insecticide

subject: Jack pine budworm biology & population ecology

abstract:
Bacillus thuringiensis (Bt) has been used historically as an insecticide by the
Ontario Ministry of Natural Resources and Forestry (OMNRF) to suppress jack pine
budworm populations in dense outbreaks. In some previous spray programs the methods
used to determine spray initiation and calculate success of the spray program was not
performed by OMNRF resource technicians, but rather had been contracted out to
external workers. 2019 was the first year since the 1990’s that OMNRF resource
technicians based out of Thunder Bay Ontario performed on site observations to track
spray initiation and success. A comparison of the 2019 operation with previous efforts
showed the effectiveness of Btk as a jack pine budworm suppression, contrasting to
previous efforts on historical outbreaks. The methodology followed was provided and
carried out by the OMNRF forest health program. The results showed that the
effectiveness of Btk as a biological insecticide has not decreased over the time it has
been used in Ontario. The change of internally performing the development and
assessment of the spray led to the 2019 spray program as a success alongside previous
spray programs in the province.


title: Fat bullying of girls in school : implications for pre-service teacher education

subject:
Bullying in school
Obesity
Overweight children
Fat bullying

abstract:
Bullying of girls based on their body size remains a problem in schools that often appears
to be tolerated and neglected by adult staff. Thus far, there has been a limited amount of
research on this topic, including a lack of investigation of students’ perspectives of being
bullied for their heavier weight. In my thesis, I interviewed six female pre-service
teachers who had experienced fat bullying in elementary and secondary school. They
were asked about these experiences, how their peers, teachers, and administrative staff
responded at the time, and what impact their experiences might have for future teachers.
Through critical discourse analysis, my analysis of the data revealed systemic oppression
of fat youth through bullying and exclusion that was often tolerated, and occasionally
even encouraged, by staff in Health and Physical Education settings such as gymnasiums,
outdoor fields, and the girls’ change room, as well as other environments including the
academic classroom, recess, and cafeteria. Further, these participants, although once
victims of fat bullying, reproduced fatphobic discourse when discussing their experiences
and future plans, thereby creating the possibility that they themselves might unwittingly
reinforce fatphobia when they become teachers. Given these findings, three
recommendations are offered for pre-service teacher education: 1) Offer a specific
course, or part of a course, that tackles oppression and bullying from a systemic
perspective; 2) Ensure that fat pedagogy is infused throughout Health and Physical
Education courses; and 3) Offer workshops on fat bullying.


title: Design and control of a 6 DOF biped robot

contributor:
Liu, Xiaoping
Yang, Xiaoli

subject:
Robotics
Robots (Motion)
Mobile robots (Design and construction)

abstract:
This thesis is composed of the following five parts: construction of a 6 Degrees of
Freedom (DOF) biped robot, control system design, analysis of forward
kinematics and inverse kinematics, walking pattern planning, and PID control
implementation.
The 6 DOF biped robot is built with aluminum plates, aluminum angles,
wood, and rubber materials. It has two legs, two feet, and one trunk, each leg
having three joints: hip, knee, and ankle. All joints are actuated by gear head DC
motors with built-in encoders.
A microcontroller-and-PC-computer-based control system is designed for
the biped robot. The control system consists of actuators, sensors, controllers,
and a PC computer. The actuators are the gear head DC motors with H-bridge
circuits as drivers and the sensors are incremental encoders built in the DC
motors. The controllers used are two microcontrollers, one for each leg. The
microprocessors read and process joint angle measurements from the encoders
and then transmit them to the PC computer. At the same time, the
microcontrollers receive control signals from the PC computer and transfer them
to the H-bridge circuits to control the robot joints. Data transfer between the
microcontrollers and the PC computer is implemented by two RS232 serial
communication channels. A control algorithm and walking pattern planning are
carried out on the PC computer.
Both forward kinematics and inverse kinematics are analyzed based on
the D-H representation for the biped robot.
Foot trajectories and hip trajectory are calculated by using the 3rd order
spline interpolation method. Desired trajectories for joint angles are determined
by the inverse kinematics. Simulation is performed to demonstrate the walking
pattern.
PID controllers are designed for controlling the biped robot to walk
according to the designed walking pattern. The proposed PID controllers are
implemented on the biped robot.


title: Synthesis and electrochemical study of Pd- and Pt- based nanostructured materials

subject:
Platinum
Palladium
Nanostructured materials

abstract:
We are currently facing climate change and global warming effects due to the emission of
greenhouse gases from our existing energy sources. Proton exchange membrane fuel cells are
one of the most efficient alternatives for power generation with the potential for greater than
80% efficiency in combined heat and power systems. Pd- and Pt-based catalysts are deemed to
hold great potential in many aspects of energy conversion; from the purification and storage of
hydrogen as palladium metal hydride (PdHx), to harnessing clean energy via fuel cells. In this
M.Sc. study, Pd and Pt-based nanomaterials have been synthesized and examined to elucidate
their applications in hydrogen storage and for fuel cell catalysis. The surface properties of the
synthesized Pd and Pt-based nanomaterials were characterized by scanning electron microscopy
(SEM), energy dispersive X-ray spectrometry (EDS), X-ray diffraction (XRD), and X-ray
photoelectron spectroscopy (XPS). Electrochemical analysis of the fabricated nanomaterials was
performed using cyclic voltammetry (CV), linear sweep voltammetry (LSV),
chronoamperometry (CA), and electrochemical impedance spectroscopy (EIS).
Novel nanoporous Pd-Ag electrocatalysts were synthesized utilizing a facile hydrothermal
method. The Ag content of the Pd-Ag alloy varied from 0 to 40%. EDS, XPS and inductively
coupled plasma (ICP) were used to directly and indirectly characterize the composition of the
formed Pd-Ag nanostructures. XRD analysis confirmed that the Pd-Ag nanomaterials were
alloys that contained a face-centered cubic structure.


title: Benchmarking the effectiveness of community services for youth with anxiety disorders

contributor:
Schmidt, Fred
Jamieson, John
Netley, Charles
Bédard, Michel
Hunsley, John

subject:
Anxiety disorders
Mental health services for children
Mental health services for teenagers
Mental health services for youth
Benchmarking

abstract:
The present study applied a benchmarking strategy to evaluate the outcomes of youth (6 -15 years) with anxiety disorders treated at  'Systems of Care' children'smental health services (SOC CMHS). There were three stages of analysis. The first used meta-analytic technique to aggregate results of 17 randomised controlled trials of treatments of anxiety in youth. From these studies, benchmarks were established for two different outcome criteria: pre-post effect sizes and the proportion of youth evidencing 'clinically significant improvement'.  Two subsets from the SOC CMHS data were considered. The first was comprised of youth who were selected on the basis of a combination of Child Behavior Checklist profile and DSM diagnosis or presenting problem. The second was comprised of youth selected primarily on the basis of clinician-generated DSM diagnosis. Neither subset attained levels of improvement commensurate with treatment efficacy benchmarks. Only one subset (selected partly on the basis of Child Behavior Checklist profile) achieved results significantly better than natural remission and this was only for one natural history benchmark (pre-post effect size). The third stage of analysis examined factors associated with reliable improvement and treatment response. Results indicated that the relatively poor response of youth from the SOC
CMHS agencies could not be explained by the socio-psychological characteristics of this
group. Avenues for future research are suggested, including extension of benchmarking
strategies in children's mental health and improved understanding of predictors of treatment response.


title: Kind of prohibition : alcohol administration in pre-computer Ontario, Canada 1927-1975

subject: Liquor laws (Ontario, History)

subject: Alcoholic beverage industry (Government policy, Ontario)

subject: Temperance (Ontario, History)

abstract:
This thesis describes in detail the development of a vast bureaucracy of
surveillance by provincial authorities around alcohol control, and concerns itself with
the categories employed in a vast social sorting operation of drinkers undertaken from
1927 into the 1970s when the system was finally discontinued. In short, at issue are the
contact points where categories are flush with material technologies. This is a history
lesson in surveillance, the theoretical relevance of which for today lies precisely in the
extraordinary transformations it made possible in terms of social identity construction
and control. The social sorts accomplished by the Liquor Control Board of Ontario
(LCBO), working in conjunction with three levels of government agencies and police
forces, could transform the most private interests into public matters, in the process
recategorizing individuals and redefining their material possessions and property.
Beyond technology is, then, the power that accrues to those and their cohorts who use
the categorization of such personal information for varied and politically motivated
purposes of social control. In short, the concern expressed here is with an all-too-contemporary
history - “list” making - and its social consequences. To use the ominous
words of Edwin Black (2001 ; 92) in his study of the informational equivalent of
blitzkrieg, that is, the speed-processing of data by Hollerith machines, when “lists were
everywhere” the politics of race became diabolical.


title: Emotion regulation strategies, cognitive personality styles, and context as predictors of psychological outcomes

subject:
Emotion regulation
Cognitive personality styles
Context
Depression

abstract: Emotion regulation (ER) plays a central role in the development and maintenance of a number of clinical disorders including depression. Research shows maladaptive ER strategies to be more strongly associated with symptoms of psychopathology and to be used more consistently across achievement and interpersonal contexts than adaptive ER strategies. This difference related to context might be explained by the cognitive personality style of the individual. The link between ER and well-being has been relatively ignored by researchers even though well-being represents another aspect of mental health. The present study examined the role that cognitive personality styles (sociotropy, autonomy) and ER strategies play in the prediction of psychological health outcomes (depression symptom severity, subjective well-being consisting of positive affect and life satisfaction) in different negative contexts (interpersonal, achievement). Results showed that generally, better psychological health outcomes were associated with lower sociotropy and the use of adaptive as opposed to maladaptive emotion regulation strategies in both negative interpersonal and achievement contexts. The use of adaptive strategies of problem-solving and cognitive reappraisal was linked to lower depression in high sociotropic individuals in both negative interpersonal and achievement contexts. The maladaptive strategy of worry/rumination was linked to more depression in high autonomous individuals in both negative interpersonal and achievement contexts. Experiential avoidance that is conceptualized as a maladaptive strategy appeared serve a useful function in high sociotropic individuals who reported less depression in both negative interpersonal and achievement context. Some context differences were observed. Acceptance and problem-solving predicted lower depression in the interpersonal context but not in the achievement context. Greater use of expressive suppression was linked to greater depression only within the achievement context and not within the interpersonal context. Worry/rumination predicted poorer subjective well-being (positive affect and life satisfaction) within the interpersonal but not the achievement context. These findings and their implications are discussed with limitations of the study in mind.


title: Preliminary hydrodynamic modeling of the steep rock pit lakes, Atikokan, Ontario

subject:
Pit lakes
Hydrodynamic behaviour
Pit lake water quality

abstract: Pit lakes are often a planned part of an open pit mine closure where the excavations are expected to flood and water quality is not an issue. Common environmental issues regarding pit lakes include their rebound rate, hydrodynamic behaviour and water quality. The water quality of pit lakes can be influenced by their hydrodynamics, for example overturn of a meromictic pit lake can bring stagnant, dissolved metal laden waters to surface that may be toxic to aquatic life.


title: Spatial analysis in timber management planning

subject:
Spatial analysis (Statistics)
Forest management
Long-range timber management planning
Geographic information system
Management planning algorithm

abstract:
The objective of this thesis was to develop a spatially sound
timber management strategy design tool. Long-range timber management
modelling systems were identified as being limited by the inability to
perform large-scale spatial analysis. Large-scale spatial analysis
capabilities, realized with the introduction of Geographic Information
Systems (GIS), allow resource managers to consider the spatial
distribution of treatments, haul costs and timing of access (termed the
spatial problem). Three candidate modelling systems were evaluated for
integration with large-scale spatial analysis. Timber RAM was chosen
because of the transferability, ease of modification and sufficient
constraint capabilities. The mathematical structure of a modified
Timber RAM system was described.
A management planning algorithm was proposed as a means of
developing spatially sound treatment schedules. The heart of the
management planning algorithm was the HAULCOST.CPL routine which
attached haul cost and timing of access attributes to individual stands
in a forest property. These attributes were used in stand class
aggregations in performing the modified Timber RAM analysis.
The management planning algorithm was implemented for a case study
forest. Results of the case study were evaluated with respect to the
ability of the management planning algorithm to address the spatial
problem and the feasibility of implementation in an actual planning
situation. The management planning algorithm was able to produce
spatially sound harvest schedules, and thus achieved the stated
objective. Practical implementation was considered to be feasible for
those organizations maintaining an ARC/INFO GI.S and database.


title: Contingent self-worth moderates the relationship between self-esteem and heart rate variability

subject: Contingent self-worth

subject: Controversy in self-esteem research

subject: Heart rate variability

subject: Heart rate variability and self-esteem research

subject: Self-esteem

abstract:
Criticisms in the field of self-esteem research have led to new methods for conceptualizing and measuring the construct. One such method proposed by Crocker and Wolfe (2001) is that of contingent self-worth (CSW). Studies of heart rate variability (HRV) may also provide a novel biological method by which to examine an individual's self-esteem (Martens et al., 2008). The present study sought to determine whether self-esteem and CSW could predict HRV and affective reactivity. Female participants (N = 96) completed a series of questionnaires and then participated in a therapy role-play and video review while their HRV was recorded. Following the experimental tasks participants also completed questionnaires pertaining to their affective reaction to the role-play and video review. A series of moderated multiple regressions were conducted to test whether CSW would moderate any relationship between self-esteem and HRV or affective reactivity. Some support was found for this proposal, with appearance CSW moderating the effect of appearance self-esteem upon HRV reactivity during role-play, but only when the topic was appearance related. Participants who placed a higher importance on
appearance as a source of their self-worth demonstrated greater HRV reactivity to the appearance role-play when they also had low appearance self-esteem. In regards to affective reactivity, for positive affect (PA) during both role-play and video review it was found that participants with higher appearance CSW were more likely to retrospectively report higher PA if they also had
high appearance self-esteem. These findings support the value of examining contingencies of
self-worth when investigating the interplay between self-esteem and parasympathetic response to a social challenge.


title: Low Temperature Epitaxial Growths of III-Nitride Semiconductors on ITO Glass Substrates

subject:
Nitride
Heteroepitaxy
Nitride growth
Atomic force microscopy

abstract: Chapter 1 serves as an introduction to the electronic, optical and physical properties of the nitride material system that have made it a heavily researched group of semiconductors. The need for heteroepitaxy and various commercially successful substrates will be discussed along with the motivation of this thesis. Some general history will be provided as well as the challenges faced by these materials in commercialization. Chapter 2 will focus on current and past growth techniques used for nitrides, outlining how epitaxy occurs in these systems with their respective benefits and faults. Chapter 3 will give an overview on the characterization tools used throughout this research. An understanding of how these tools operate will assist in interpreting data correctly. Combined with knowledge from chapter 2 it may also give insight on what needs to change about growth conditions to optimize growth. Chapter 4 will present the growth results from various characterization tools discussed in chapter 3. Conclusions about the data from each material system will be discussed. Chapter 5 will focus on theoretical calculations for InN. Initial results for InN show it to be the most promising material. A theoretical analysis of common impurities on the electronic band structure of InN will help in interpreting optical properties of the material. The central research contributions of the author in this thesis can be summarized as the development of III-Nitrides growth recipes for each material, characterization of the results, and the application of LCAO theory to the InN system for common impurities found in the growth technique examined.


title: Adaptability in moose (Alces alces L) : habitat selection in two landscapes in Newfoundland, Canada

contributor:
McLaren, Brian
Mahoney, Shane
Rodgers, Art
Knight, Tom

subject:
Moose
Habitat
Newfoundland and Labrador
Habitat selection
Long range barrens
Gros Morne National Park
Migration
Northern Peninsula Forest

abstract: Moose (Alces alces [L.]) exist circumglobally and in a vast array of different habitats. I explore differences in habitat selection in relation to differences in availability of forest stands by habitat type and number of foraging patches, and variation in quality of a winter forage item, balsam fir (Abies balsamea [L.] Mill.), used by moose in Gros Morne National Park, Newfoundland and Labrador, Canada. Adult female moose collared in 1997-1998 occupied two landscapes, the Gulf of St. Lawrence Coastal Plain ecoregion (lowlands) and the Long Range Barrens ecoregion (highlands). They followed three landscape-use strategies: year-round residence in the lowlands (n = 5), year-round residence in the highlands (n = 5), and migration from lowlands in winter to the highlands in summer (n = 2). Habitat selection at the stand scale was calculated as the likelihood of selecting a habitat type, based on its availability estimated from classification of SPOT-5 satellite imagery and on moose location data from Global Positioning System (GPS) collars, used to calculate home ranges, core-use areas and foraging patches. There was no difference in habitat selection between migrants and residents either in the lowlands in winter or in the highlands in summer. The summer season, identified as the period of higher rate of movement compared to the winter, was shorter for migrants (median 166 days) than for moose occupying the highlands (174 days) and the lowlands (173days). Foraging patches were arbitrarily defined as areas where a minimum of three consecutive GPS locations < 24 h apart occurred with distances between them of < 50 m. Straight-line distances between successive locations and between foraging patches over weekly and seasonal periods did not differ among the three landscape-use strategies in winter or in summer. Distances travelled were lower in winter than in summer and the number of foraging patches relative to the amount of forested area was higher in the highlands. Chemical analysis of terminal and lateral branches of balsam fir, collected in July 2010, was used as a surrogate for identifying site richness in foraging patches and as a means of identifying forage quality. Lateral and terminal branches had a higher carbon-to-nitrogen ratio in the lowlands, including significant variation in quality by habitat type, compared to the highlands, where variation did not occur by habitat and carbon-to-nitrogen ratio was significantly lower. This outcome suggests the lowlands offer lower quality forage items and lower average site richness compared to the highlands. The migration strategy likely evolved for moose to cope with less available forage during winter in the highlands when snow is very deep.


title: Geology and alteration associated with the Hamlin Lake VMS system, Shebandowan Greenstone belt, Northwestern Ontario, Canada

subject:
Geochemistry
Petrology
Hydrothermal alteration
Northwestern Ontario

abstract: The Hamlin Lake area is located approximately 120 km southwest of the City of Thunder Bay, Ontario within the Shebandowan greenstone belt of the Wawa Subprovince, Superior Province. The purpose of this study was to understand the relationship between an extensive felsic volcanic rock package and the hydrothermal alteration.  Mapping of the area exposed five major lithologies consisting of mafic metavolcanic rocks, intermediate metavolcanic rocks, felsic metavolcanic rocks, felsic intrusive rocks and iron formation. The felsic metavolcanic rocks vary from rhyolites and banded ash to lapilli tuffs and debris flows, whereas the intermediate metavolcanic rocks are made up of dacites and andesites. The only mafic metavolcanic rocks are the debris flows. The felsic intrusive rocks consist of a quartz-eye porphyry and pink breccia. Primary textures, such as fiamme, can still be observed and which are indicative of a subaqueous environment. Major and trace element geochemical analyses were undertaken on 200 samples of andesitic to rhyolitic volcanic and volcaniclastic rocks.


title: Pregnancy : a social construction

contributor:
Wakewich, Pamela
Nelsen, Randle W.

subject:
Pregnancy
Pregnancy Psychological aspects

abstract:
Departing from conventional social science approaches to pregnancy and the pregnant
woman’s body this study examines pregnancy as experience", a socially constructed state of
being where attitudes about sexuality and maternity conflict. The study is based on a review of
feminist and social science literature on pregnancy, the body and body image, as well as indepth
interviews with a group of pregnant women and their male partners. Using a qualitative research
design, a set of two interviews was conducted with twenty-eight female participants and their
male partners, during the second and third trimesters of pregnancy. The interviews explored the
themes the body as a social construction, pregnancy as a socially constructed experience;
pregnancy as a liminal stage, and sexuality versus motherhood, as well as responses to a series
of images of pregnancy and pregnant women drawn from recent popular women’s magazines.
Drawing on Smith’s concept of ‘experience’ from the standpoint of the everyday world, it
is argued that the media image of the pregnant woman as the realization of motherhood and a
symbol of femininity is not an adequate reflection of women’s own experiences of pregnancy. In
contrast, pregnancy is often experienced as a liminal phase - a state in which the pregnant
woman may find herself stigmatized as she becomes identified with obesity and the ‘sick role’.
As the embodiment of what it is to be a woman, the essence of pregnancy as socially perceived
lies neither in its sexuality nor in its maternity but in its femininity. This study explores in what
ways this is reflected in and amplified by societal and cultural sanctions to which pregnant
women find themselves exposed during pregnancy.


title: Thermal decomposition and gasification of cellulose and wood wastes

subject:
Pyrolysis
Wood waste
Cellulose

abstract:
The thermal decomposition of jack pine bark, white birch sawdust
and cellulose has been studied by both isothermal weight-change determinations and dynamic thermogravimetry mostly in inert atmospheres up to 900°C. Gaseous products formed in helium and helium/water vapour atmospheres from 350 to 650* and 101 to 2533 kPa were analysed by gas chromatography. The effects of a number of additives, alkali metal and transition metal compounds, on the kinetics of the reaction and on the gas yields have been examined. The effect of pressure on the chemical balance and distribution of the gaseous products was also
studied. Residues were analysed for CHN contents and any structural changes on heating were detected by scanning electron microscopy.
Both kinetic data and gaseous product analysis showed that cellulose
was more susceptible to the influence of additives than the wood samples.
Isothermal decomposition data for bark and sawdust were similar to results
expected for diffusion-controlled processes. The addition of potassium carbonate shifted the kinetics of decomposition of cellulose from a description consistent with a phase-boundary controlled model to that for a diffusion-controlled process. The apparent activation energy for cellulose pyrolysis was lowered by the addition of both potassium carbonate and iron (Ill) oxide.
Gaseous products analysis suggested that the addition of iron (III)
oxide catalyzed the water-gas reaction in the overall gasification while zinc
(XI) chromite behaved as an inhibitor in this regard. Potassium carbonate
appeared to catalyze the carbon-steam reaction and there was some indication that more gases and tar could be formed from the secondary reactions of tars when the pressure of the system was raised to 2533 kPa.
In the gasification of cellulose and jack pine char, the addition of
water vapour, potassium carbonate, iron (III) oxide and zinc (II) chromite was found to increase the total gas yields which in turn Increased the heat content of the mixtures.


title: Wind-induced pounding of tall buildings

contributor:
Elshaer, Ahmed
Issa, Anas

subject:
Structural pounding
Pounding mitigation

abstract:
Pounding of adjacent structures under lateral loads (e.g., earthquake and wind) due to proximity
has been a major cause of building damage in the past. The effects of pounding can be mitigated
by providing a suitable gap distance between structures, adequate shock absorbers or by designing
for the additional pounding loads. However, if not properly considered, these abnormal
supplementary loads can damage the structures, notably when the attentive structure experiences
a dynamic vibration in an out-of-phase order. Multiple pounding incidents have been reported to
occur under lateral loads, which resulted in local and global damages. With the new generation of
tall buildings, which are becoming taller and more flexible, these structures are becoming more
susceptible to wind-induced pounding due to the large sway developed during high wind
problematic affairs. The study first investigates wind-induced pounding forces of two equal height
structures with similar dynamic properties. This will first rely on using Large Eddy Simulation
(LES) modelling for the wind load evaluations. Then, the wind loads will be extracted from the
LES models and applied to a Finite Element Method (FEM) analysis software to determine the
examined structures’ deflections, minimum separation gap distance, and pounding forces. To
correlate a reasonable mathematical formula, training data values must be prepared. This will
include varying values of the structure’s heights, applied wind velocities, flexure of the structure,
and the separation distance between the examined buildings. Lastly, a Genetic Algorithm (GA) is
then utilized with varying parameters of the tall structures to correlate the minimum separation
gap distance and maximum pounding force that can be performed. To achieve a more accurate
mapping for the trained database, the more complex the mathematical formula will be developed.


title: Portrayal of dominance in children's myth, story and legend : implications for educational administrators

contributor:
Klassen, Daniel
Fennell, Hope-Arlene
Thom, Doug

subject:
Children's literature
Dominance (Psychology) in literature
Children Books and reading

abstract:
This research views a theory of dominance from the perspective that dominance represents an integration of dialectical support and control dimensions. The design of the inquiry applies an adaptation of Hersey and Blanchard's situational Leadership model, called the
Dominance Affect Template, to the main characters in children's myth, story and legend. The research
stories include THE UGLY DUCKLING, LITTLE FED RIDING
HOOD, CINDERELLA, THE SLEEPING BEAUTY, THE RED SHOES
and THE WILD SWANS.
Analysing the content of children's myth, story and legend effectively creates a new story highlighting characterisations of controlling and supporting role expressions. The resulting effectiveness of such role manifestations upon the situatedness of the main character progressing curvilinearly through Technical, Interdependent, Political, and Rational Dominance quadrants is examined with the application of the Dominance Affect Template.
Children's myth, story and legend, when considered relationally by affect, creates an ecology of little narrative through which children may be constructively guided to discover their own talents for interacting with, having an effect upon, and feeling empowered within the world that they inhabit.


title: Investigating the human-nature relationships of wilderness leaders

contributor:
Russell, Connie
Cuthbertson, Brent

subject:
Wilderness area users
Ontario
Attitudes
Human-nature relationships

abstract:
This qualitative study explored how wilderness leaders view wilderness and understand their relationship with wilderness. The term wilderness leader denotes outdoor educators and guides who lead trips in backcountry wilderness areas. Guided by a narrative design, in-depth interviews were conducted with five Canadian individuals who have been leading multi-day wilderness trips for five years or more. During the interviews, leaders were asked to describe their experiences in wilderness, their relationships with nature, and explore their role as wilderness leaders.
Five main themes emerged through the interview process. These themes included the leaders' defintions of wilderness, stories of time spent in wilderness and why they were drawn to wilderness in the first place, how they understood their relationships with nature, their notions of wilderness ethic, and how they see their roles as wilderness leaders. The underlying connecting theme of this research was that all the leaders felt strongly about their relationship with nature. Rooted in respect for nature, and a perspective of being a part of nature, they wanted to ensure that they travelled in wilderness in a way that was indicative of that respect.
This study supports environmental education research that calls for strong emotional connections to the natural world. This study also corroborates the critique that many outdoor education and wilderness programs lead participants to view wilderness and civilization as two separate entities. This study therefore advocates the need for wilderness leaders to continue to think critically about wilderness and be given opportunities to reflect and be challenged on their ideas of wilderness.


title: Indian in textbooks : a content analysis of history books authorized for use in Ontario schools

subject: Indians of North America Study and teaching

subject: Indians of North America History

subject: Textbooks Ontario


title: Expression of integrin and toll-like receptors in cervical cancer (in vivo and ex vivo study)

contributor:
Ulanova, Marina
Zehbe, Ingeborg

subject:
Cervix uteri
Cancer
Research
Integrins
Cell receptors

abstract: Cervical cancer is the second most common cancer in women world-wide. Although persistent human papillomavirus  (HPV) infection is considered the most important causative agent of cervical cancer, the mechanisms toward malignant transformation remain unclear. Some evidence suggest that bacterial vaginosis (BV), a shift in normal vaginal flora toward infection of Gram-negative bacteria, may play a role in the development of cervical cancer. As part of the innate immune system, toll-like receptors (TLR) are important for the early detection and clearance of viral and bacterial infections, and are posed to play an important role in the development of cervical cancer.


title: The effect of removing examinees with low motivation on item response data calibration

contributor:
van Barneveld, Christina
Childs, Ruth
Volante, Louis

subject:
Educational evaluation
Motivation in education
Student motivation
Mathematics assessment

abstract:
Many item-response models (IRM) used to estimate student abilities and test item parameters in
large-scale assessments (LSA) do not account for the effect of student low motivation. This
effect may pose a threat to the validity of test data interpretations. The first purpose of this study
was to evaluate the effect of removing examinees with low motivation on the estimates of
examinee abilities and test-item parameters calibrations using an item response theory
model. The second purpose was to examine the significance of the relationship between
students’ motivation and their mathematics achievement, as measured by the LSA. Student
motivation as defined by expectancy-value theory and self-efficacy theory was identified from
self-report data using a principal component analysis. Two components scores, mathematics
values and interest, were computed for each examinee to create two groups of examinees with
high and low motivation. These groups were used to examine the effect of removing examinees
with low motivation on the estimates of test item parameters and student abilities between a 3-
parameter logistic (3PL) and modified 3PL IRM. The effect of student motivation on their
academic achievement was examined using a hierarchical linear model (HLM). The results
suggested that the modified 3PL IRM seemed to minimize the effect of low motivation on the
estimates of student abilities and test item parameters when compared to the 3PL. The results
from the HLM suggested that student mathematics values and interest are significant predictors
of students’ academic achievement. The outcome of this study builds on the research work of
Swerdzewski, Harmes, and Finneys (2011) and supports the research work of Wise and DeMars
(2006); Wolf and Smith (1995) in the use of IRM and measures of student motivation to provide
more accurate interpretations of LSA data.


title: Investigating mathematics anxiety through the medium of a workshop / by Sean Etches.

subject: Math anxiety

subject: Mathematics Study and teaching Psychological aspects


title: Anaerobic power and capacity in amateur boxers

subject:
Respiration
Muscle strength
Boxers (Sports)

abstract:
There were two purposes to this study. Firstly, a test
was devised to measure the anaerobic power output of arm
punching. Secondly, the Wingate anaerobic arm cranking test
was used to assess the relationship between the maximal
anaerobic power and capacity produced using this test, and
the anaerobic power output produced using the innovative arm
punching test. The arm punching test and the Wingate test
were the independent variables. The anaerobic power output,
maximal anaerobic power and capacity were the dependent
variables. The testing sample consisted of a group of
amateur boxers (n =5). A non-significant (p<.05)
correlation coefficient of r = 0.55 was found between the
anaerobic power output using the arm punching test and the
maximal anaerobic power using the Wingate test.