cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Optimal Shape Design for Polymer Electrolyte Membrane Fuel Cell Cathode Air Channel: Modelling, Computational and Mathematical Analysis
Creators: name: Al-Smail, Jamal Hussain
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2012
Subjects: Shape optimization, PEM fuel cell cathode optimal design of air channel, polarization curve, shape differentiability, existence and uniqueness
Shape optimization
PEM fuel cell cathode optimal design of air channel
polarization curve
shape differentiability
existence and uniqueness

description: Hydrogen fuel cells are devices used to generate electricity from the electrochemical reaction between air and hydrogen gas. An attractive advantage of these devices is that their byproduct is water, which is very safe to the environment. However, hydrogen fuel cells still lack some improvements in terms of increasing their life time and electricity production, decreasing power losses, and optimizing their operating conditions. In this thesis, the cathode part of the hydrogen fuel cell will be considered. This part mainly consists of an air gas channel and a gas diffusion layer. To simulate the fluid dynamics taking place in the cathode, we present two models, a general model and a simple model both based on a set of conservation laws governing the fluid dynamics and chemical reactions. A numerical method to solve these models is presented and verified in terms of accuracy. We also show that both models give similar results and validate the simple model by recovering a polarization curve obtained experimentally. Next, a shape optimization problem is introduced to find an optimal design of the air gas channel. This problem is defined from the simple model and a cost functional, $E$, that measures efficiency factors. The objective of this functional is to maximize the electricity production, uniformize the reaction rate in the catalytic layer and minimize the pressure drop in the gas channel. The impact of the gas channel shape optimization is investigated with a series of test cases in long and short fuel cell geometries. In most instances, the optimal design improves efficiency in on- and off-design operating conditions by shifting the polarization curve vertically and to the right. The second primary goal of the thesis is to analyze mathematical issues related to the introduced shape optimization problem. This involves existence and uniqueness of the solution for the presented model and differentiability of the state variables with respect to the domain of the air channel. The optimization problem is solved using the gradient method, and hence the gradient of $E$ must be found. The gradient of $E$ is obtained by introducing an adjoint system of equations, which is coupled with the state problem, namely the simple model of the fuel cell. The existence and uniqueness of the solution for the adjoint system is shown, and the shape differentiability of the cost functional $E$ is proved.
Processes influencing low income housing: Proceedings of the Joint CSIRO-AHRC Seminar on Low Income Housing, Melbourne, Victoria, Australia, 31 July 1978
Creators: name: Newton, Peter
Publisher: name: Swinburne
Year: 2024

description: For several years the Australian Housing Research Council (AHRC) has funded research on a range of housing-related topics including house design and construction, access to housing and related services, urban planning and management, and housing policy analysis. A review of completed projects revealed sets of studies with strong underlying connections along particular themes. The CSIRO-AHRC seminar afforded the opportunity to bring AHRC-funded researchers and others who have undertaken research in related areas, face to face with representatives of State and Federal housing authorities, for whom the research is often undertaken. The collection of papers in the present volume addresses, from several perspectives, the broad theme, 'processes influencing low income housing'. The first two chapters deal with economic issues connected with access to housing among low income groups (for instance, the relative merits of public housing versus income transfers tied to either rental or ownership property in the private housing market). The three chapters which follow, are concerned with identifying the redistributive effects associated with the construction of new dwellings in both the public and private housing markets. Chapters 6 and 7 focus more particularly on the changing nature of the housing market in inner city areas---an area which continues to house a significant proportion of low income households. The eighth chapter concludes by examining the value systems of urban residents, as they pertain to aspirations for housing---a question of relevance to the public as well as private housing market.
Generation X: the effect of work-life balance and emotional intelligence on well-being
Creators: name: Harmer, Richard
Publisher: name: Swinburne
Year: 2024

description: Generation X (25-35 years) is a significant demographic, and work-life balance is valued highly for this demographic. The aim of the study was to determine the role job satisfaction, relationship satisfaction and emotional intelligence had in determining work-life balance. Sample comprised of 27 females (Mean age 27.6 years, SD = 2.28) and 24 males (Mean age 29 years, SD = 2.84). Job satisfaction was found to be a significant predictor of perceived work-life balance for Generation X and was mediated by emotional intelligence. The impact of job and relationship satisfaction, emotional intelligence and work-life balance on mental, physical and spiritual well-being for Generation X was also explored. Results suggested that job satisfaction helps to enhance mental well-being and is mediated by both emotional intelligence and work-life balance. Physical well-being is enhanced by relationship satisfaction. Spiritual well-being is important to Generation X, more so than mental and physical well-being and is enhanced by emotional intelligence. The results suggest that holistic well-being is a consequence of one’s ability to maintain relationship satisfaction, job satisfaction and perceived work-life balance, a process augmented by emotional intelligence. Implications of the study’s finding are discussed and suggestions for further research are made.
The last slave ship : a practice-led exploration, via the production of a literary artefact, into the possibility of harnessing tonal signifier texts to make a creative intervention into the cultural amnesia surrounding Liverpool's slaving past
Creators: name: Chatterton, Martin Edward
name: Chatterton, Martin Edward
Publisher: name: Southern Cross University
Year: 2017
Subjects: Arts and Humanities
Fiction
Social History
Slavery
Liverpool
resistance
memory

description: Liverpool’s pivotal role in the Atlantic Slave Trade has become dessicated through musealisation, and a dominant white identity; a situation which has resulted in the marginalisation of Liverpool’s black population. This thesis is a practice-led exploration into harnessing tonal signifier texts to make a creative intervention into the cultural amnesia surrounding Liverpool’s slaving past. The thesis attempts to suggest an alternate discourse by translating Antony Gormley’s “things which cannot be articulated” into a novel, referencing the politics of civil disobedience, micro nationhood, identity, memory, and texts that engage with Machery’s “ideological necessity” of silence.
L'environnement de socialisation politique des jeunes femmes au Québec.
Creators: name: Barbeau, Carole.
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2001
Subjects: subject: Women's Studies.

description: L'objectif de cette thèse est de déterminer si l'environnement de socialisation des jeunes femmes du Québec a une influence sur leur propension à s'engager en politique. Une comparaison est faite entre l'environnement de socialisation d'un échantillon de sept militantes de 18 à 30 ans et celui de l'ensemble des femmes de cette génération. Les vecteurs de socialisation étudiés sont l'environnement socio-économique des jeunes femmes et celui de leur famille d'origine; les liens existant entre la famille et la politique et l'action communautaire; et l'exemple particulier donné par la mère. Les données vont dans le sens de l'hypothèse pour la majorité des dimensions de l'environnement pour lesquelles la comparaison a pu être réalisée. Les résultats font ressortir l'importance de l'instruction et des liens familiaux avec la politique ainsi que l'émergence de l'influence de l'exemple de la mère dans la socialisation politique.
Le sujet en position de dépotoir dans Les météores de Michel Tournier.
Creators: name: Renaud, Pascale.
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2001
Subjects: subject: Literature, Romance.

description: Dans Les météores , Michel Tournier met en scène un univers mythique dans lequel évoluent les jumeaux Paul et Jean. Parallèlement à cette trame gémellaire, leur oncle Alexandre tente d'installer au sein de son discours une stratégie discursive qui vise à subvertir le discours bourgeois du texte. Cette subversion s'effectuera notamment à partir de la manipulation des unités d'emprunt et des stéréotypes. Il s'agira dans cette thèse d'étudier le personnage d'Alexandre, qui grâce à son état de «poubellisé» opère une rupture épistémologique avec le discours doxologique ambiant. Cette voix associée à la doxa , nous la retrouverons manifestement dans les représentations que diverses instances textuelles proposent d'Alexandre: le scandale et le dandy. Par ailleurs, nous verrons de quelle façon il réussit à échapper à ce piège tendu par le stéréotype afin de mettre en place sa vision du monde. C'est donc à travers une esthétisation de l'ordure qu'Alexandre parviendra à ses fins.
Human reproductive cloning in Australian public policy debate : a critical realist exploration of attitudes and their justifications
Creators: name: Lingard, Robert G
Publisher: name: Southern Cross University
Year: 2019
Subjects: Human reproductive cloning
Justification
Critical realism
Sense-making

description: This research provides a Critical Realist analysis of attitudes to human reproductive cloning (HRC), and their justifications, expressed during Australian public policy debates culminating in 2002 and 2006, resulting in, and confirming prohibition of HRC. Analysis of literature, government records, and interviews identified historical attitudes to HRC; causally significant valuings of HRC; and extended Boltanski and Thévenot’s (1999/2006) Economies of Worth theory by describing a World of Diversity. Finally, the morphostatic significance of the technical valuing of HRC, which dominated other valuings, indicated that medico-scientists were implicitly vested with the power to declare whether HRC might be introduced as a reproductive technology in Australia.
Ives as innovator? Considerations of sources, biography, and style for his songs based on models.
Creators: name: Misener, Katharine Lynn.
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2000
Subjects: subject: Biography.

description: The traditional image of Charles Ives is one of a composer who eschewed the European tradition completely. An exploration of his use of German models provides the means for re-examining his relation to the European tradition. This thesis treats the composer's songs modeled on settings with the same texts by Brahms and Mendelssohn. The analysis bears on Ives's musical style and on his approach to song composition. In addition it speaks to larger aesthetic questions related to his output. The elements considered in this analysis include form, text painting, and harmonic language. The study of these songs affords an opportunity to evaluate literary theories of influence that have been applied to the study of music, including Harold Bloom's "Anxiety of Influence", as they relate to modeled works. In order to understand these works better, the genesis of these works is explored through his early music training and his relationship to his teacher at Yale, Horatio Parker, by a consideration of the sources. His reworking of the past and his transcendental characteristics are situated within the larger progressive movement. A reconsideration of the composer's biography contributes to a fuller picture of Ives and his compositional output.
Stakeholder accountability in strategy: a conceptual approach to disparate groups and organizational decision making
Creators: name: Rees, Murray
Publisher: name: Swinburne
Year: 2024

description: A number of instances where stakeholder needs have not been taken account in strategy resulting in the waste of resources, lost opportunities and inappropriate activities are highlighted. A discussion on who is and who should be included in strategy development is made. Managers may not be the best to set strategy in isolation as this may become self serving, whilst owners or their representatives, the board may not always have the organization’s long term interests in mind when contributing to strategy. Other stakeholders are often ignored by the process of strategy setting that in a number of cases has resulted in strategic problems. This paper proposes the adaptation of Stakeholder reporting as a framework to include stakeholders to enable a constructive communication framework and more appropriate strategy development process. This paper looks at the merits of such an application.
Les poètes au théâtre
Creators: name: Racine, Noële
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2012
Subjects: poète
dramaturgie
Antonin Artaud
Paul Claudel
Claude Gauvreau
Littérature française
Littérature québécoise
poésie au XXe siècle
théâtre au XXe siècle

description: Cette thèse étudie le passage de la poésie au théâtre, à partir de trois parcours créateurs majeurs appartenant aux littératures française et québécoise des trois premiers quarts du XXe siècle – soit ceux d’Antonin Artaud, de Paul Claudel et de Claude Gauvreau. Ces auteurs – d’abord reconnus pour leur écriture poétique – ont su, soit en pratiquant, soit en inspirant une écriture théâtrale radicalement novatrice, jouer un rôle déterminant dans la mutation des formes tant dramatiques que dramaturgiques, et cela, par le biais de trois stratégies. Après une introduction rappelant l’évolution des liens (dés)unissant la poésie et le théâtre à travers les siècles, le premier chapitre s’attache à mettre au jour les approches mises en œuvre par les trois écrivains pour rejeter l’illusion réaliste. Celles-là ressortissent à leur prise de position antinaturaliste, à leur volonté de fonder un art total et à leur souhait de revenir aux sources d’une mimesis archaïque. Le second chapitre explore, quant à lui, les procédés de poétisation du dramatique : les mécanismes et les caractéristiques de la langue lyrique des poètes en général, et la génération d’idiomes inédits en particulier. Les techniques de théâtralisation et de dramatisation du poétique, de leur côté, sont examinées dans le dernier chapitre. Plusieurs événements et rencontres ont donné l’occasion aux poètes-dramaturges de saisir quelles sont les modalités inhérentes à la scène. Cette prise de conscience a directement influé sur leur écriture dramaturgique, notamment en les faisant user de deux stratégies propices au surgissement de la théâtralité : l’oralisation lyrique de la partition dramatique et la plastification des corps. La conclusion, pour sa part, propose une synthèse des résultats de recherche, et montre que ces trois auteurs sont réunis par la même quête cosmique d’un théâtre vital et existentiel.
« L’Ontario français, c’est le nom d’un combat ». Gaétan Gervais, acteur et témoin d’une mutation référentielle (1944-2008)
Creators: name: Dorais, François-Olivier
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2013
Subjects: Ontario français
Gaétan Gervais
historiographie
histoire intellectuelle
intellectuel
historien
militant

description: Cette thèse propose une étude de l’oeuvre intellectuelle et militante de l’historien Gaétan Gervais, à la fois témoin et acteur d’une mutation référentielle en Ontario français depuis la fin des années 1960. Sont examinés les divers lieux d’enracinement de sa pensée, depuis le Sudbury français des années 1940 et 1950, en passant par le contexte de mutations culturelles, politiques et historiographiques des décennies d’après-guerre. L’étude s’étend au contenu des écrits de l’historien ainsi qu’à ses interventions dans les sphères publique et gouvernementale de l’Ontario et de la francophonie canadienne, plus spécifiquement au regard de l’éducation postsecondaire. L’analyse fait ressortir les paramètres structurants de sa pensée et montre comment elle opère dans l’espace propre au milieu minoritaire franco-ontarien. Elle fait apparaître l’historien comme l’une des principales figures énonciatrices d’une représentation identitaire axée sur une continuité référentielle avec le Canada français, porteuse d’une ambition autonomiste sur les plans institutionnel et référentiel.
Misconceptions About The Neolithic Era AND Neolithic Concepts of Time and Nature
Creators: name: Doble, Rick
Publisher: name: figshare
Year: 2025
Subjects: classificationCode: 430307
subject: Environmental history
classificationCode: 430308
subject: European history (excl. British, classical Greek and Roman)
classificationCode: 430310
subject: Global and world history
classificationCode: 430399
subject: Historical studies not elsewhere classified
classificationCode: 430313
subject: History of empires, imperialism and colonialism
classificationCode: 430101
subject: Archaeological science
classificationCode: 430199
subject: Archaeology not elsewhere classified
classificationCode: 430104
subject: Archaeology of Europe, the Mediterranean and the Levant
classificationCode: 430107
subject: Historical archaeology (incl. industrial archaeology)
classificationCode: 430108
subject: Maritime archaeology

description: Two In-depth Articles About the Neolithic Era THE NEOLITHIC MINDSET A New Concept Of Time A New Relation To The Natural Environment ------- AND ------- MISCONCEPTIONS ABOUT THE NEOLITHIC ERA Incorrect Assumptions And Modern Biases Have Prevented A Full Understanding Of The Neolithic Era by Rick Doble
Wellbeing of Australian Boarders: Student, Staff and Parent Perspectives.
Creators: name: Watt, Anthony Edward
Publisher: name: Southern Cross University
Year: 2024
Subjects: Boarding schools
Student wellbeing
Belonging
Autonomy
Recognition
Educational transitions

description: Boarding schools have been part of the Australian educational landscape since formal schooling has existed. Available enrolment data indicates that boarding continues to serve the needs of a considerable population of students from regional, remote and metropolitan areas of Australia, along with others from overseas. Living away from home in a boarding school setting has significant implications for student wellbeing (Hawkes, 2010) and extensive duty of care implications for boarding staff (Hodges, 2012). Yet little is known about how students, staff and parents perceive wellbeing in boarding school contexts. This study addresses this well-documented knowledge gap (see Hodges, 2012; Hodges, Sheffield & Ralph, 2013; Mander & Hasking, 2020; Mander & Lester, 2017, 2019; Papworth, 2014; White, 2004). The study is timely and significant given ongoing concerns about the mental health of young people, the roles that schools increasingly play in supporting this and findings from the Australian Royal Commission into Institutional Responses to Child Sexual Abuse, which revealed that, historically, boarding school environments carry a significantly higher risk of child abuse (Parkinson & Cashmore, 2017).
description: Informed by Bronfenbrenner’s bioecological theory, this qualitative study investigates how student wellbeing is understood and experienced in boarding school contexts. Specifically, it draws on the views of boarders (n = 142), staff (n = 33) and parents (n = 32) in 18 boarding schools across four Australian states to explore how wellbeing is conceptualised in boarding school contexts, including enablers and barriers. The analysis identifies convergent and divergent perspectives on wellbeing and considers how the views of all stakeholders might contribute to improved policy and practice in boarding school settings.
description: The study found that boarder wellbeing is closely linked to experiences of ‘relating’, ‘being’ and ‘having’. Various associated practices were identified as enabling or constraining a respectful and inclusive boarding culture, which in turn was perceived as central to the wellbeing of students. From a bioecological perspective, such findings draw attention to the importance of belonging (relationships, places and spaces), autonomy (routines, flexibility and choice); recognition (engagement, identity and self-awareness); transition (induction and mentoring); and safety (policies and procedures). The study identified several implications and recommendations for improving policy and practice around the wellbeing of young people in boarding school environments.
Monitoring the stiffness and strength development of structural adhesives and concrete during curing using piezoelectric-based techniques
Creators: name: Tang, Zi Sheng
Publisher: name: Southern Cross University
Year: 2021
Subjects: Adhesive
Concrete
Curing
Modelling
Non-destructive test
Piezoelectric

description: The piezoelectric-based electromechanical impedance (EMI) and wave propagation (WP) techniques have been widely used to monitor homogeneous and non-homogeneous materials in laboratory conditions. However, there have been limited studies investigating the use of these techniques for monitoring construction materials. This study therefore considers two commonly used construction materials, namely, structural adhesive (homogeneous) and concrete (non-homogeneous). Both of these materials develop stiffness and strength upon mixing and subsequent curing. Monitoring such properties is desirable to ensure timely decisions can be made, such as formwork removal and load application. The WP technique is a well-established and reliable monitoring technique that requires multiple lead zirconate titanate (PZT) transducers. It was previously proven to effectively monitor the curing process of adhesive and concrete materials. On the other hand, the EMI technique, which is more sensitive than the WP technique and requires only a single PZT transducer, has had limited application to adhesive and concrete. This thesis reports an investigation on the feasibility of the EMI technique for monitoring structural adhesive and in-situ concrete. The study is divided into three stages, namely (I) proof-of-technique experimental study for monitoring adhesive curing in laboratory conditions with the EMI technique (with verification via the WP technique), (II) analytical and numerical modelling studies of adhesive curing in laboratory conditions using the EMI and WP techniques, and (III) application of the EMI and WP techniques for monitoring in-situ concrete curing. In Stage I, the EMI technique was employed for monitoring adhesive curing in laboratory conditions. The WP technique was simultaneously employed to verify the EMI-acquired outcomes using the same set of PZT transducers. The measured results were acquired as electrical signatures, and were compared and correlated to tensile strength tests. In Stage II, analytical and numerical modelling studies were conducted to investigate the interaction between the PZT transducer and adhesive substrate. Semi-analytical and semi-numerical models were developed by simulating, verifying and correlating the electrical signatures with destructive tests. These resulting models can quantitatively determine the elastic modulus and tensile strength of structural adhesive at various curing durations. Following Stages I and II, the EMI and WP techniques were then employed to monitor in-situ concrete curing at a construction site subjected to external interferences. The measured results were comparable to ultrasonic pulse velocity (UPV) tests and showed a close relationship to compression tests. These promising results show the potential use of the EMI and WP techniques in practical applications.
Role of Intracellular Ca2+ and pH in CO2/pH Chemosensitivity in Neuroepithelial Cells of the Zebrafish (Danio rerio) Gill Filament
Creators: name: Abdallah, Sara
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2013
Subjects: Zebrafish
Hypercapnia
Neuroepithelial cells
Respiration

description: Neuroepithelial cells (NECs) of the zebrafish gill filament have been previously identified as bimodal O2 and CO2/H+ sensors that depolarize in response to chemostimuli via inhibition of background K+ channels. To further elucidate the signaling pathway underlying CO2/H+ chemoreception in the NECs we employed microspectrofluorometric techniques to examine the effects of hypercapnia on [Ca2+]i and pHi. NECs increased their [Ca2+]i in response to acidic hypercapnia (5% CO2, pH 6.6) and isocapnic acidosis (normocapnia, pH 6.6), but not to isohydric hypercapnia (5% CO2, pH 7.8). The acid- induced increase in [Ca2+]i persisted in the absence of extracellular Ca2+, and Ca2+ channel blockers (Cd2+, Ni2+ and nifedipine). NECs exhibited a rapid and reversible drop in pHi in response to acidic hypercapnia and isohydric hypercapnia. Isocapnic acidosis also induced intracellular acidification within NECs, but it was less severe than the drop in pHi elicited by acidic hypercapnia and isohydric hypercapnia. The rate and magnitude of intracellular acidification was reduced by the CA-inhibitor, acetazolamide, without effect on the acid-induced increase in [Ca2+]i. Acetate was used to investigate the relationship between pHi and [Ca2+]i. Acetate induced intracellular acidification without augmentation of [Ca2+]i. The results of this thesis demonstrate that (1) extracellular acidification, but not CO2, is critical to the hypercapnia-induced increase in [Ca2+]i (2) the increase in [Ca2+]i is independent of the drop in pHi (3) the increase in [Ca2+]i is not mediated by the influx of Ca2+ across the plasma membrane.
Service routines, technology and service delivery: focusing on the Telco frontline
Creators: name: Krios, Kon
name: Rex, Judy
name: Clulow, Val
Publisher: name: Swinburne
Year: 2024

description: This exploratory study gave an insight into the effect that service routines and technology had on the ability of frontline employees from a large Australian telecommunications company to deliver effective service to call centre customers. The study highlighted that for simple and timely service routines to occur, product lines and support services needed to be compatible with both the technology provided and frontline employees’ expertise in using the technology. When this occurred, simple and timely service routines appeared to follow, which equated to higher quality service and better customer satisfaction. On the other hand, when this did not occur frontline employees were often forced to unwillingly deliver poor service to customers. The comments of the frontline staff provide an interesting window into the potentially high cost for any organization that does not understand the power that frontline employees have to build or break a business.
The Seasonal Agricultural Workers Program: Looking at Mexican Participation Through a Magnifying Glass
Creators: name: Cruz-Lopez, Irma F.
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2013
Subjects: Foreign workers
migrant workers
Mexican workers
discrimination
collective bargaining
immigration
employment insurance
equality

description: Mexican migrant workers have been coming to Canada since 1974 to work in agriculture as participants of the Seasonal Agricultural Workers Program (SAWP). Presently, Mexicans constitute the majority of SAWP workers. As well, Ontario is the main receiver of these workers followed by British Columbia and Quebec. Accordingly, the scope of this thesis mainly encompasses Mexican workers in Ontario. However, the thesis also includes Mexican SAWP workers in Quebec and British Columbia. This thesis reveals two main issues: (1) that all SAWP workers, particularly Mexican workers, lack key legal rights and protections relating to labour relations, employment, health and safety standards at the structural level of the SAWP; and at the federal, provincial, and international levels. (2) Even when they have rights under legislation relating to the above-mentioned subject matters, Mexicans, especially, lack the capacity to access them. Thus, they become ‘unfree labourers’ who are placed in a perpetual state of disadvantage, vulnerable to abuse and exploitation once in Canada. To describe the issues above, the thesis is divided into five chapters addressing the following: Chapter 1 presents the historical context behind the SAWP as well as the Mexican workers’ circumstances that attract them to participate in the Program. Chapter 2 examines the applicable constitutional and federal framework for SAWP workers. In addition, it highlights key federal exclusions placed on them, which originate in the federal immigration and employment insurance legislation. Chapter 3 concludes that Ontario does not protect its agricultural workers from unfair treatment and exploitation in the workplace; rather, it perpetuates such practices. This reality is intensified for SAWP Mexican workers. Particularly, chapter 3 analyses a constitutional challenge to the Ontario legislation excluding agricultural worker from its labour relations regime; said challenge is based on ss. 2(d) and 15(1) of the Canadian Charter of Rights and Freedoms. Chapter 4 maintains that similarly to workers in Ontario, SAWP workers in Quebec and British Columbia also face extreme disadvantages due in great part to the lack of or limited legal protections. Finally, chapter 5 asserts that due to its implementation in the Canadian framework, international law is inadequate to protect domestic and SAWP workers’ rights. While each chapter identifies tangible drawbacks or anomalies, which affect SAWP workers negatively, the thesis also provides recommendations to alleviate said weaknesses.
Social Signaling and Urea Excretion in the Gulf Toadfish, Opsnus beta
Creators: name: Fulton, Jeremy
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2013
Subjects: Opsanus beta
Social signaling
Ureotely
Toadfish

description: The gulf toadfish (Opsanus beta) is a member of a group of teleosts that have retained their ornithine urea cycle (OUC) allowing them to excrete nitrogenous waste in the form of urea (ureotely). Urea-­N for the entire day is excreted in 1-­2 quick pulsing events (1-­3 h). This study evaluated the hypothesis that urea-­N pulsing events in gulf toadfish can be triggered by social signals from conspecifics via a specific waterborne messenger. Using a crowding protocol, we found that pre-­conditioned seawater induced a secondary urea pulsing event in naïve conspecifics. Furthermore, it was revealed that other factors such as signal concentration and donor body mass relay information to recipients as well. Fractionation of pre-­conditioned seawater was carried out to narrow possible signal candidates and the aqueous portion was found to contain the active molecule. Ammonia was found to be an important factor controlling the response of toadfish to pre-conditioned seawater.
Design criteria for rolling contact fatigue resistance in back-up rolls
Creators: name: Frolish, M. F.
name: Beynon, J. H.
Publisher: name: Swinburne
Year: 2024

description: This research centres on surface initiated damage on back-up rolls whereby rolling contact fatigue cracks can propagate into the rolls potentially reaching the internal stress fields and leading to catastrophic failure and has sought to establish design criteria for avoiding such failures. The project objectives have been achieved by examining field evidence, determining the loading and tribological conditions at the work roll/back-up roll interface and investigating both theoretically and experimentally the mechanisms involved in rolling contact fatigue in this case. The presented rolling contact, fatigue and fracture mechanics model includes criteria for crack branching either upwards (i.e.relative safety) or downwards (i.e.potentially catastrophic) and the link between these two cases is related, quantitatively, to the properties of the roll material. After linking mechanics to microstructure, the influence of work roll test disc surface roughness on both the surface wear of and the interaction between wear and rolling contact fatigue at the surface of back-up roll test discs has been quantified using the results obtained from experimental simulations carried out on a rolling–sliding testing machine. Finally practical quantitative recommendations are made for the mechanical and microstructural design of bainitic back-up roll materials, back-up roll redressing procedures and the surface roughness of both work rolls and back-up rolls presented to the mill.
A Critical Assessment of Traditional and Online Reviews
Creators: name: Jayathilake, Nelini
Publisher: name: Southern Cross University
Year: 2024
Subjects: Online Reviews
Traditional Reviews
Online Review Platforms
Information Quality
Incentives
Google Map Reviews
Local Guides

description: With the rapid proliferation of Web 2.0 technologies together with the availability, accessibility and ubiquity of mobile technologies, online reviews have become an essential catalyst in consumer decision-making, shaping consumer choices. This research sheds light on the evolving landscape of consumer information consumption. This study explores the characteristics of online reviewers, the attributes of online reviews, and the scale and measurements used in online review systems. Specifically, the thesis research (i) develops a weighted-average index that furnishes valuable insights for consumers to make more informed purchase decisions, (ii) investigates the impact of incentivised online local guides (LGs) on review quality, and (iii) discerns the significant differences between traditional non-online reviews and online reviews. Multiple methods are used to achieve this thesis's research objectives.
description: Through web scraping techniques, an extensive dataset comprising 22,581 online reviews is collected and analysed across three diverse platforms: Google, Expedia.com, and Trip Advisor. The collected data underwent a thorough process, utilising various statistical tools to clean, transform, analyse, and visualise, provide a data-based inference in answering research questions, ensuring a robust and comprehensive examination. This rich dataset enables a nuanced exploration of critical issues surrounding the utilisation of online reviews in consumer purchase decision-making. The research also delves into the impact of incentivised online LGs on online review quality by investigating how external motivations may influence the reliability and authenticity of online reviews.
description: The thesis research contributes to our understanding of, and academic discourse on, contemporary themes in the information systems discipline, notably information quality, decision-making efficacy, online reviews and review behaviour patterns. A notable contribution is the development of a weighted-average online review usefulness index (ORUI), providing consumers with valuable insights to make more informed purchase decisions. This ORUI offers a quantitative measure of online review quality that amalgamates various aspects of online reviews. By identifying the issues associated with the quality of online reviews, we gain a deeper understanding of online reviews, which provides valuable perspectives for consumers and businesses alike. The thesis research offers businesses and platforms actionable recommendations to enhance their online review systems' quality, reliability, and trustworthiness. It serves as a valuable resource for both academia and industry, providing empirically grounded insights applicable in real-world settings.
description: The findings of this research have been acknowledged and accepted for presentation at international conferences.
Cold atoms probe the magnetic field near a wire
Creators: name: Jones, M. P. A.
name: Vale, Christopher
name: Sahagun, D.
name: Hall, Brenton
name: Eberlein, C. C.
name: Sauer, B. E.
name: Furusawa, K.
name: Richardson, D. J.
name: Hinds, E. A.
Publisher: name: Swinburne
Year: 2024

description: A microscopic Ioffe-Pritchard trap is formed using a straight, current-carrying wire, together with suitable auxiliary magnetic fields. By measuring the distribution of cold rubidium atoms held in this trap, we detect a weak magnetic field component ΔBz parallel to the wire. This is produced by the current in the wire and is approximately periodic along the wire with period λ = 230 μm. We have measured this field at distances in the range y = 250-350 μm from the centre of the wire. Over this range we find that the decrease of the field is well described by the Bessel function K1(2πy/λ), as one would expect for the far field of a transversely oscillating current within the wire.
Pedagogic Shift: Supporting Teachers’ Change in Professional Practice A Study Through the Example of Blended Learning
Creators: name: Fradalé, Paul Anthony
Publisher: name: Southern Cross University
Year: 2024
Subjects: Pedagogy
Shift
Pedagogic shift
Blended learning

description: Improving educational outcomes and preparing students to participate in the global market has been challenging within the context of the knowledge economy, which has caused education to exist in a state of tension over several decades. This challenge was exacerbated recently by events such as the COVID-19 pandemic and the rise of so-called Generative Artificial Intelligence platforms. These have driven schools to an increased use of instructional technologies that require fundamentally different teacher skill sets, triggering intense investment in schools worldwide. Within this context, a key problem has been that the current teacher workforce has yet to shift their instructional pedagogies to match the requirements that learners need to participate in the knowledge economy. The aim of this study was to investigate how teachers and leaders in an international school system experienced the shift from traditional pedagogies to ones aligned with the model described as blended learning and identify the factors that would facilitate or impede such shifts. This study followed a mixed methods, sequential explanatory design methodology, using an initial survey to provide quantitative data analysed through factor analysis and correlational analyses. The study was investigated further through a series of focus group discussions intended to provide qualitative data, which was analysed through reflexive thematic analysis. This combined data was then synthesised to answer the thesis research questions. This synthesis revealed that a holistic, novel framework called ‘pedagogic shift’ designed through an abductive process over the course of the research may provide an adequate description of how several factors inhibit or support shifting pedagogies at individual and school levels. The study also generated practical suggestions for operationalising aspects of this framework that will allow teachers and school leaders to effectively manage future initiatives involving pedagogical shifts in response to changing conditions.
On the numerical continuation of nonhyperbolic periodic solutions in ordinary differential equations with applications to a two-level laser model.
Creators: name: Nolte, Klaus-Georg.
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 1994
Subjects: subject: Mathematics.

description: Based upon the combination of the pseudo-arclength continuation method the Poincare map and various defining equations, several systems of equations are constructed that trace nonhyperbolic periodic solutions of autonomous ordinary differential equations. A system that equally well continues a saddle-node, a period-doubling and a secondary Hopf bifurcation across a two-dimensional parameter space is presented first. Additional formulae are provided which, along with the continuation, completely characterize these codimension-one bifurcations and therefore lead to the detection of certain codimension-two bifurcations, in particular Takens-Bogdanov bifurcations, cusps, isola formation points or perturbed bifurcation points and degenerate period-doublings and degenerate secondary Hopf bifurcations. Secondly, systems are developed which continue these codimension-two bifurcations across a three-dimensional parameter space, thereby detecting certain codimension-three bifurcations of periodic orbits. The application of these ideas to a five-dimensional system describing a two-level laser leads to a variety of interesting bifurcations. A winged cusp, a swallow tail, two kinds of degenerate Takens-Bogdanov points and isola formation points for different codimension-one loops are found. Also, maximal bounds in a three-dimensional parameter domain for the existence of certain periodic solutions are given. Moreover, the coexistence of several attractors of the same and/or different topological structure is demonstrated. Finally, attractive tori are found in a systematic way and briefly discussed.
An alternative approach to overcome shortcomings with multiple testing of binary data in ecotoxicology
Creators: name: Lehmann, René
name: Karaoglan, Bilgin
name: Bachmann, Jean
name: Lacker, Jens
name: Polleichtner, Christian
Publisher: name: My University
Year: 2017

description: Binary data such as survival, hatching and mortality are assumed to be best described by a binomial distribution. This article provides a simple and straight forward approach for derivation of a no/lowest observed effect level (NOEL/LOEL) in a one-to-many control versus treatments setup. Practically, NOEL and LOEL values can be derived by means of different procedures, e.g. using Fisher̷s exact test in coherence with adjusted p values. However, using adjusted p values heavily decreases statistical power. Alternatively, multiple t tests (e.g. Dunnett test procedure) together with arcsin-square-root transformations can be applied in order to account for variance heterogeneity of binomial data. Arcsin-square-root transformation, however, violates normal distribution because transformed data are constrained, while normal distribution provides data in the range (-8,8). Furthermore, results of statistical tests relying on an approximate normal distribution are approximate too. When testing for trends in probabilities of success (probs), the step down CochranŃArmitage trend test (CA) can be applied. The test statistic used is approximately normal. However, if probs approach 0 or 1, normal approximation of the null-distribution is suboptimal. Thus, critical values and p values lack statistical accuracy. We propose applying the closure principle (CP) and FisherŃFreemanŃHalton test (FISH). The resulting CPFISH can solve the problems mentioned above. CP is used to overcome a-inflation while FISH is applied to test for differences in probs between the control and any subset of treatment groups. Its applicability is presented by means of real data sets. Additionally, we performed a simulation study of 81 different setups (differing numbers of control replicates, numbers of treatments etc.), and compared the results of CPFISH to CA allowing us to point out the advantages and disadvantages of the CPFISH. Quelle: linkspringer.com
Actions of Finite Groups on Substitution Tilings and Their Associated C*-algebras
Creators: name: Starling, Charles B
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2012
Subjects: Tilings
Operator Algebras
K-theory
Noncommutative Geometry

description: The goal of this thesis is to examine the actions of finite symmetry groups on aperiodic tilings. To an aperiodic tiling with finite local complexity arising from a primitive substitution rule one can associate a metric space, transformation groupoids, and C*-algebras. Finite symmetry groups of the tiling act on each of these objects and we investigate appropriate constructions on each, namely the orbit space, semidirect product groupoids, and crossed product C*-algebras respectively. Of particular interest are the crossed product C*-algebras; we derive important structure results about them and compute their K-theory.
The critical thinking debate: how general are general thinking skills?
Creators: name: Moore, Timothy
Publisher: name: Swinburne
Year: 2024

description: This paper takes up the issue of whether the skill of critical thinking in university education is best thought of as a broad universal generic skill or rather as only a loose category taking in a variety of modes of thought. Through the linguistic analysis of some sample texts, I argue that the discourse of general thinking programs should not be thought of as a generalist discourse at all, but in fact a quite specific one. The implications both for the teaching and testing of critical thinking are considered in the light of this position.
Enhanced ethanol production: In-situ ethanol extraction using selective adsorption
Creators: name: Jones, Rudy
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2012
Subjects: lignocellulosic biomass
ethanol

description: In order to produce ethanol derived from lignocellulosic feeds at a cost that is competitive with current gasoline prices, the fermentation process, converting sugars to produce ethanol and the subsequent purification steps, must be enhanced. Due to their comparatively lower costs, the widespread availability across a range of climates, and their status as a dedicated energy crop, lignocellulosic biomass feeds are ideal raw materials that can be used to produce domestic fuels to partly displace our dependence on non-renewable sources. Currently, a major drawback of the technology is the relatively low ethanol tolerance of the micro-organisms used to ferment xylose and glucose. To alleviate the ethanol inhibition of Escherichia coli KO11 (ATCC 55124) during fermentation, online ethanol sequestration was achieved through the implementation of an externally located packed bed adsorber for the purpose of on-line ethanol removal (using F-600 activated carbon). By removing ethanol from the broth during the fermentation, inhibition due to the presence of ethanol could be alleviated, enhancing the substrate utilization and fermentation rate and the ethanol production of the fermentation. This study details a comprehensive adsorbent screening to identify ethanol selective materials, modelling of multi-component adsorption systems, and the design, implementation and modelling of a fermentation unit coupled with an externally located packed bed adsorber.