Optimising water quality outcomes for complex water resource systems and water grids
- Authors: Dey, Sayani
- Date: 2023
- Type: Text , Thesis , PhD
- Full Text:
- Description: As the world progresses, water resources are likely to be subjected to much greater pressures than in the past. Even though the principal water problem revolves around inadequate and uncertain water supplies, water quality management plays an equally important role. Availability of good quality water is paramount to sustainability of human population as well as the environment. Achieving water quality and quantity objectives can be conflicting and becomes more complicated with challenges like, climate change, growing populations and changed land uses. Managing adequate water quality in a reservoir gets complicated by multiple inflows with different water quality levels often resulting in poor water quality. Hence, it is fundamental to approach this issue in a more systematic, comprehensive, and coordinated fashion. Most previous studies related to water resources management focused on water quantity and considered water quality separately. However, this research study focused on considering water quantity and quality objectives simultaneously in a single model to explore and understand the relationship between them in a reservoir system. A case study area was identified in Western Victoria, Australia with water quantity and quality challenges. Taylors Lake of Grampians System in Victoria, Australia receives water from multiple sources of differing quality and quantity and has the abovesaid problems. A combined simulation and optimisation approach was adopted to carry out the analysis. A multi-objective optimisation approach was applied to achieve optimal water availability and quality in the storage. The multi-objective optimisation model included three objective functions which were: water volume and two water quality parameters: salinity and turbidity. Results showed competing nature of water quantity and quality objectives and established the trade-offs. It further showed that it was possible to generate a range of optimal solutions to effectively manage those trade-offs. The trade-off analysis explored and informed that selective harvesting of inflows is effective to improve water quality in storage. However, with strict water quality restriction there is a considerable loss in water volume. The robustness of the optimisation approach used in this study was confirmed through sensitivity and uncertainty analysis. The research work also incorporated various spatio-temporal scenario analyses to systematically articulate long-term and short-term operational planning strategies. Operational decisions around possible harvesting regimes while achieving optimal water quantity and quality and meeting all water demands were established. The climate change analysis revealed that optimal management of water quantity and quality in storage became extremely challenging under future climate projections. The high reduction in storage volume in the future will lead to several challenges such as water supply shortfall and inability to undertake selective harvesting due to reduced water quality levels. In this context, selective harvesting of inflows based on water quality will no longer be an option to manage water quantity and quality optimally in storage. Some significant conclusions of this research work included the establishment of trade-offs between water quality and quantity objectives particular to this configuration of water supply system. The work demonstrated that selective harvesting of inflows will improve the stored water quality, and this finding along with the approach used is a significant contribution to decision makers working within the water sector. The simulation-optimisation approach is very effective in providing a range of optimal solutions, which can be used to make more informed decisions around achieving optimal water quality and quantity in storage. It was further demonstrated that there are range of planning periods, both long-term (>10 years) and short-term (<1 year), all of which offer distinct advantages and provides useful insights, making this an additional key contribution of the work. Importantly, climate change was also considered where it was found that diminishing water resources, particularly to this geographic location, makes it increasingly difficult to optimise both quality and quantity in storage providing further useful insights from this work.
- Description: Doctor of Philosophy
- Authors: Dey, Sayani
- Date: 2023
- Type: Text , Thesis , PhD
- Full Text:
- Description: As the world progresses, water resources are likely to be subjected to much greater pressures than in the past. Even though the principal water problem revolves around inadequate and uncertain water supplies, water quality management plays an equally important role. Availability of good quality water is paramount to sustainability of human population as well as the environment. Achieving water quality and quantity objectives can be conflicting and becomes more complicated with challenges like, climate change, growing populations and changed land uses. Managing adequate water quality in a reservoir gets complicated by multiple inflows with different water quality levels often resulting in poor water quality. Hence, it is fundamental to approach this issue in a more systematic, comprehensive, and coordinated fashion. Most previous studies related to water resources management focused on water quantity and considered water quality separately. However, this research study focused on considering water quantity and quality objectives simultaneously in a single model to explore and understand the relationship between them in a reservoir system. A case study area was identified in Western Victoria, Australia with water quantity and quality challenges. Taylors Lake of Grampians System in Victoria, Australia receives water from multiple sources of differing quality and quantity and has the abovesaid problems. A combined simulation and optimisation approach was adopted to carry out the analysis. A multi-objective optimisation approach was applied to achieve optimal water availability and quality in the storage. The multi-objective optimisation model included three objective functions which were: water volume and two water quality parameters: salinity and turbidity. Results showed competing nature of water quantity and quality objectives and established the trade-offs. It further showed that it was possible to generate a range of optimal solutions to effectively manage those trade-offs. The trade-off analysis explored and informed that selective harvesting of inflows is effective to improve water quality in storage. However, with strict water quality restriction there is a considerable loss in water volume. The robustness of the optimisation approach used in this study was confirmed through sensitivity and uncertainty analysis. The research work also incorporated various spatio-temporal scenario analyses to systematically articulate long-term and short-term operational planning strategies. Operational decisions around possible harvesting regimes while achieving optimal water quantity and quality and meeting all water demands were established. The climate change analysis revealed that optimal management of water quantity and quality in storage became extremely challenging under future climate projections. The high reduction in storage volume in the future will lead to several challenges such as water supply shortfall and inability to undertake selective harvesting due to reduced water quality levels. In this context, selective harvesting of inflows based on water quality will no longer be an option to manage water quantity and quality optimally in storage. Some significant conclusions of this research work included the establishment of trade-offs between water quality and quantity objectives particular to this configuration of water supply system. The work demonstrated that selective harvesting of inflows will improve the stored water quality, and this finding along with the approach used is a significant contribution to decision makers working within the water sector. The simulation-optimisation approach is very effective in providing a range of optimal solutions, which can be used to make more informed decisions around achieving optimal water quality and quantity in storage. It was further demonstrated that there are range of planning periods, both long-term (>10 years) and short-term (<1 year), all of which offer distinct advantages and provides useful insights, making this an additional key contribution of the work. Importantly, climate change was also considered where it was found that diminishing water resources, particularly to this geographic location, makes it increasingly difficult to optimise both quality and quantity in storage providing further useful insights from this work.
- Description: Doctor of Philosophy
Personality characteristics and their effects on perceived stress, interpersonal relationships, and psychological distress
- Authors: Di Battista, John
- Date: 2003
- Type: Text , Thesis , PhD
- Full Text:
- Description: "The aim of the present studies is to determine whether various aspects of personality have an influence on psychological distress and to determine whether any intervening factors affect this relationship."
- Description: Doctor of Psychology (Clinical)
- Authors: Di Battista, John
- Date: 2003
- Type: Text , Thesis , PhD
- Full Text:
- Description: "The aim of the present studies is to determine whether various aspects of personality have an influence on psychological distress and to determine whether any intervening factors affect this relationship."
- Description: Doctor of Psychology (Clinical)
Incidence and aetiological factors in the development of medial tibial stress syndrome
- Authors: Diacogiorgis, Dimitri
- Date: 2005
- Type: Text , Thesis , Masters
- Full Text:
- Description: The aim of this 13 week prospective study was to investigate whether differences in hip, knee, ankle, subtalar, or first metatarsophalangeal joint (MPJ) range of motion and physical activity levels increase a person's likelihood of developing medial tibial stress syndrome (MTSS)." --p.2.
- Description: Master of Applied Science
- Authors: Diacogiorgis, Dimitri
- Date: 2005
- Type: Text , Thesis , Masters
- Full Text:
- Description: The aim of this 13 week prospective study was to investigate whether differences in hip, knee, ankle, subtalar, or first metatarsophalangeal joint (MPJ) range of motion and physical activity levels increase a person's likelihood of developing medial tibial stress syndrome (MTSS)." --p.2.
- Description: Master of Applied Science
Assessment of powered mobility device use among older australians in residential aged care facilities
- Authors: Dickson, Natalie
- Date: 2023
- Type: Text , Thesis , Masters
- Full Text:
- Description: Autonomous mobility is fundamental for older Australians to participate in the activities that occupy and inspire daily life. Should a mobility difficulty arise, a powered mobility device (PMD) can assist to supplement or restore mobility, choice, and control. A PMD continues to be a valued resource once a person moves into residential aged care. However, increasing frailty among people within this group means that incidents can result in serious injury for PMD users or others living, visiting, or working in this environment. Guidelines for PMD use are available, however, there are no regulations or mandates to seek professional guidance for assessment of competence, equipment prescription, or training. Occupational therapy theory and practice can support all parts of this process. This thesis presents a three-part study using a mixed methods approach to (i) examine PMD use related incidents and injuries within residential aged care, (ii) to evaluate existing measurement tools, and (iii) to develop and undertake initial validation of a new screening tool developed for residents who use PMDs, based on classical test theory (De Vellis, 2006). The new screening tool will address a gap identified among screening tools for PMD capacity and performance skills specific to this population, to improve the balance between much needed autonomy and safety for all stakeholders.
- Description: Master of Health (Research)
- Authors: Dickson, Natalie
- Date: 2023
- Type: Text , Thesis , Masters
- Full Text:
- Description: Autonomous mobility is fundamental for older Australians to participate in the activities that occupy and inspire daily life. Should a mobility difficulty arise, a powered mobility device (PMD) can assist to supplement or restore mobility, choice, and control. A PMD continues to be a valued resource once a person moves into residential aged care. However, increasing frailty among people within this group means that incidents can result in serious injury for PMD users or others living, visiting, or working in this environment. Guidelines for PMD use are available, however, there are no regulations or mandates to seek professional guidance for assessment of competence, equipment prescription, or training. Occupational therapy theory and practice can support all parts of this process. This thesis presents a three-part study using a mixed methods approach to (i) examine PMD use related incidents and injuries within residential aged care, (ii) to evaluate existing measurement tools, and (iii) to develop and undertake initial validation of a new screening tool developed for residents who use PMDs, based on classical test theory (De Vellis, 2006). The new screening tool will address a gap identified among screening tools for PMD capacity and performance skills specific to this population, to improve the balance between much needed autonomy and safety for all stakeholders.
- Description: Master of Health (Research)
Semantic manipulation and business context in big data analytics
- Authors: Dinh, Loan
- Date: 2018
- Type: Text , Thesis , PhD
- Full Text:
- Description: Business organisations receive a huge amount of data from many sources every day. These data are known as big data. Since they are mostly unstructured, big data creates a complex problem of how to capture, manage, analyse and then derive meaningful information from them. To deal with the challenges that big data has brought, this research proposes a new technique in big data analytics in the business area to integrate semantically meaningful information relevant to textual queries and business context. To achieve this aim, this study makes three major related contributions. Firstly, the relationship between business processes and strategies is established using the concept of a rule-based inference model via facts and annotations. This relationship is required to determine the importance of a big data query for a business organisation. Secondly, we introduce approaches to determine the significance level of a query, by incorporating the processstrategy relationship, process contributions and priority of business strategies. Thirdly, the proposed data analytic technique embeds business context into the bedrock of data collection and analysis process. The first two contributions were implemented using Python programming language including the Pyke package (Pyke is built in the Python environment and has an artificial intelligence tool for the development of expert systems) and their performances were analysed based on a business use case. The last contribution was implemented mainly in the Hadoop and Java programs. Results show that the first contribution successfully establishes the processstrategy relationship, the second calculates the significance level of a query in relation to a business organisation, while the third reveals the huge impact of query significance level and business context on big data collection and captures deep business insights.
- Description: Doctor of Philosophy
- Authors: Dinh, Loan
- Date: 2018
- Type: Text , Thesis , PhD
- Full Text:
- Description: Business organisations receive a huge amount of data from many sources every day. These data are known as big data. Since they are mostly unstructured, big data creates a complex problem of how to capture, manage, analyse and then derive meaningful information from them. To deal with the challenges that big data has brought, this research proposes a new technique in big data analytics in the business area to integrate semantically meaningful information relevant to textual queries and business context. To achieve this aim, this study makes three major related contributions. Firstly, the relationship between business processes and strategies is established using the concept of a rule-based inference model via facts and annotations. This relationship is required to determine the importance of a big data query for a business organisation. Secondly, we introduce approaches to determine the significance level of a query, by incorporating the processstrategy relationship, process contributions and priority of business strategies. Thirdly, the proposed data analytic technique embeds business context into the bedrock of data collection and analysis process. The first two contributions were implemented using Python programming language including the Pyke package (Pyke is built in the Python environment and has an artificial intelligence tool for the development of expert systems) and their performances were analysed based on a business use case. The last contribution was implemented mainly in the Hadoop and Java programs. Results show that the first contribution successfully establishes the processstrategy relationship, the second calculates the significance level of a query in relation to a business organisation, while the third reveals the huge impact of query significance level and business context on big data collection and captures deep business insights.
- Description: Doctor of Philosophy
The life and times of Dr Hermann Beckler (1828-1914) : An Australian - Barvarian Odyssey
- Authors: Dodd, David
- Date: 2016
- Type: Text , Thesis , Masters
- Full Text:
- Description: The principal aim of this research thesis has been to reconstruct the life and times of Dr Hermann Beckler (1828-1914), a Bavarian-born scientist and adventurer who spent six years in Australia between 1856 and 1862. This study constitutes the first authoritative analysis of Beckler’s life. It focuses on the various turning points that influenced his odyssey-like journey from Bavaria to Australia and back again, as well as his travels within Australia, his interest in the natural environment and the botany of Australia, and his empathy towards the Indigenous people. Beckler was a product of the Age of Romanticism. He was an enigmatic and contemplative person, yet possessed a degree of toughness and resilience to overcome what appeared to be initially a self-imposed exile, replete with self-recriminations, as he tried to establish himself, firstly as a medical doctor and then as a pharmacist in the pioneering Moreton Bay region of colonial New South Wales. His interests in the natural sciences provided a solution to the problem of employment, and his botanical collecting skills ultimately gained him a position with Dr Ferdinand Mueller of the Melbourne Botanic Gardens. He worked as a botanical plant collector in northern New South Wales before his medical qualifications and botanical saw him appointed as medical doctor and botanist to the Victorian Exploring Expedition 1860-1861 led by Robert O’Hara Burke and William John Wills. Beckler recognized this appointment as an opportunity to explore the hitherto unknown parts of the interior of Australia and while he did his best to fulfill his role, he was frustrated by the mismanagement of the whole expedition by Burke’s erratic leadership and by the ineptitude of the Royal Society of Victoria’s Exploration Committee. He remains one of Australia’s and Germany’s forgotten explorer botanists. This thesis aims to bring to life Beckler’s contribution to this important episode in Australian colonial history.
- Description: Master of Business by Research
- Authors: Dodd, David
- Date: 2016
- Type: Text , Thesis , Masters
- Full Text:
- Description: The principal aim of this research thesis has been to reconstruct the life and times of Dr Hermann Beckler (1828-1914), a Bavarian-born scientist and adventurer who spent six years in Australia between 1856 and 1862. This study constitutes the first authoritative analysis of Beckler’s life. It focuses on the various turning points that influenced his odyssey-like journey from Bavaria to Australia and back again, as well as his travels within Australia, his interest in the natural environment and the botany of Australia, and his empathy towards the Indigenous people. Beckler was a product of the Age of Romanticism. He was an enigmatic and contemplative person, yet possessed a degree of toughness and resilience to overcome what appeared to be initially a self-imposed exile, replete with self-recriminations, as he tried to establish himself, firstly as a medical doctor and then as a pharmacist in the pioneering Moreton Bay region of colonial New South Wales. His interests in the natural sciences provided a solution to the problem of employment, and his botanical collecting skills ultimately gained him a position with Dr Ferdinand Mueller of the Melbourne Botanic Gardens. He worked as a botanical plant collector in northern New South Wales before his medical qualifications and botanical saw him appointed as medical doctor and botanist to the Victorian Exploring Expedition 1860-1861 led by Robert O’Hara Burke and William John Wills. Beckler recognized this appointment as an opportunity to explore the hitherto unknown parts of the interior of Australia and while he did his best to fulfill his role, he was frustrated by the mismanagement of the whole expedition by Burke’s erratic leadership and by the ineptitude of the Royal Society of Victoria’s Exploration Committee. He remains one of Australia’s and Germany’s forgotten explorer botanists. This thesis aims to bring to life Beckler’s contribution to this important episode in Australian colonial history.
- Description: Master of Business by Research
'And for harmony most ardently we long' : Musical life in Ballarat, 1851-1871
- Authors: Doggett, Anne
- Date: 2006
- Type: Text , Thesis , PhD
- Full Text:
- Description: "The study examines two decades in the musical life of Ballarat, a regional city in south-eastern Australia. Beginning at the time of the 1851 gold rush, it covers the period in which Ballarat grew from a rough mining camp to an established city with a socially and ethnically diverse population of over 40,000 people. The thesis pursues the aim of looking at the music practices of the community in ways that will further our understanding of the significance of music in the lives of the people."--Abstract.
- Description: Doctor of Philosphy
- Authors: Doggett, Anne
- Date: 2006
- Type: Text , Thesis , PhD
- Full Text:
- Description: "The study examines two decades in the musical life of Ballarat, a regional city in south-eastern Australia. Beginning at the time of the 1851 gold rush, it covers the period in which Ballarat grew from a rough mining camp to an established city with a socially and ethnically diverse population of over 40,000 people. The thesis pursues the aim of looking at the music practices of the community in ways that will further our understanding of the significance of music in the lives of the people."--Abstract.
- Description: Doctor of Philosphy
Reflective space : A personal journey towards a re-envisioning of the Australian landscape
- Authors: Donald, Colin
- Date: 2008
- Type: Text , Thesis , PhD
- Full Text:
- Description: Whilst the notion of the ‘Reflective Space’ could arguably encompass many conceptual positions and propositions, for the purposes of this research investigation the ‘Reflective Space’ referred to in the title of this exegesis will focus upon what I consider as an emerging and growing consciousness of the natural world. As a theoretical and conceptual construct, the investigation considers how this growing consciousness can be seen to be expressed through the medium of representations of the Australian landscape. This work considers a number of contemporary theoretical positions and a number of relevant social and political questions; it also acknowledges that within such spheres of reflection, the issue of being sustainable in relation to our interactions and perceptions of this natural world looms as perhaps one of the most pressing of our time. While it will be acknowledged that the depiction of landscape enjoys a long-standing tradition within the Australian cultural mind, the suggestion will be made that certain aspects of these visualisations can be seen to be ‘reflective’ of a visual, cultural and physical degradation, and indeed even an apprehension of the physical ‘space’ that is represented as landscape. The investigation considers and reflects upon what can be observed as contentious and ambivalent attitudes expressed towards landscape perceived through works of art. Strategies for adopting a perceptual visual ethic grounded within the concepts and principles of sustainability will be presented for consideration. By applying such modes of interpretation to perceptions of land and landscape depiction, new appreciations for the cultural ‘space’ that is landscape will be developed. Such understandings will consider and reflect upon the temporal nature of our natural world. The thesis is this: that to be able to think and act in a sustainable fashion in relation to our environment, our perceptions and interpretations of visualisations of landscape must include a recognition that the land is a ‘temporal’ space, in which past and possible futures are immanent in the present.
- Description: PhD (Visual Arts)
- Authors: Donald, Colin
- Date: 2008
- Type: Text , Thesis , PhD
- Full Text:
- Description: Whilst the notion of the ‘Reflective Space’ could arguably encompass many conceptual positions and propositions, for the purposes of this research investigation the ‘Reflective Space’ referred to in the title of this exegesis will focus upon what I consider as an emerging and growing consciousness of the natural world. As a theoretical and conceptual construct, the investigation considers how this growing consciousness can be seen to be expressed through the medium of representations of the Australian landscape. This work considers a number of contemporary theoretical positions and a number of relevant social and political questions; it also acknowledges that within such spheres of reflection, the issue of being sustainable in relation to our interactions and perceptions of this natural world looms as perhaps one of the most pressing of our time. While it will be acknowledged that the depiction of landscape enjoys a long-standing tradition within the Australian cultural mind, the suggestion will be made that certain aspects of these visualisations can be seen to be ‘reflective’ of a visual, cultural and physical degradation, and indeed even an apprehension of the physical ‘space’ that is represented as landscape. The investigation considers and reflects upon what can be observed as contentious and ambivalent attitudes expressed towards landscape perceived through works of art. Strategies for adopting a perceptual visual ethic grounded within the concepts and principles of sustainability will be presented for consideration. By applying such modes of interpretation to perceptions of land and landscape depiction, new appreciations for the cultural ‘space’ that is landscape will be developed. Such understandings will consider and reflect upon the temporal nature of our natural world. The thesis is this: that to be able to think and act in a sustainable fashion in relation to our environment, our perceptions and interpretations of visualisations of landscape must include a recognition that the land is a ‘temporal’ space, in which past and possible futures are immanent in the present.
- Description: PhD (Visual Arts)
Quoting landscape : an investigative journey across the landscape of the Westen district of Victoria
- Authors: Donald, Colin
- Date: 2004
- Type: Text , Thesis , Masters
- Full Text:
- Description: "This research project aims to provide a contemporary visualisation of "specific sites." The visualisation of these selected landscapes will draw upon and add to existing traditions of representation of this region, embedding my experiences within this dialogue."
- Description: Master of Arts (Visual Arts)
Quoting landscape : an investigative journey across the landscape of the Westen district of Victoria
- Authors: Donald, Colin
- Date: 2004
- Type: Text , Thesis , Masters
- Full Text:
- Description: "This research project aims to provide a contemporary visualisation of "specific sites." The visualisation of these selected landscapes will draw upon and add to existing traditions of representation of this region, embedding my experiences within this dialogue."
- Description: Master of Arts (Visual Arts)
"Working through it" : men's experiences of fatherhood following a life event / Allan H. Donelly
- Authors: Donelly, Allan H.
- Date: 2004
- Type: Text , Thesis , PhD
- Full Text:
- Description: "This study set out to determine if and how men change their approach to fatherhood for reasons other than those prescribed by society, that is, are fathers capable of change for personal and interpersonal reasons. ... The participants needed to have experienced a life event whist being a father."
- Description: Doctor of Philosophy
- Authors: Donelly, Allan H.
- Date: 2004
- Type: Text , Thesis , PhD
- Full Text:
- Description: "This study set out to determine if and how men change their approach to fatherhood for reasons other than those prescribed by society, that is, are fathers capable of change for personal and interpersonal reasons. ... The participants needed to have experienced a life event whist being a father."
- Description: Doctor of Philosophy
Contrasting colonial collectors: an examination of nineteenth-century collectors of Victorian Indigenous cultural artefacts, violence and antiquarianism
- Authors: Donovan, Paul
- Date: 2023
- Type: Text , Thesis , PhD
- Full Text:
- Description: The motivations and methodologies for collecting Indigenous Australian cultural material from colonial Victoria from 1802–1900 have varied widely. Some collectors enacted frontier war to disarm a colonised people and dispossess them of their land. Others sought to salvage a material scientific record of the culture of a race they believed was doomed to imminent extinction or build museum collections for public education. Some sought souvenirs or gifts to document tourism experiences, and some acquired exotic material for commercial enterprise. This dissertation offers a historical overview of political and scientific paradigms underpinning the collection of Indigenous Australian cultural material from nineteenth-century Victoria and characterises the resulting collecting practices. The nature of the collection methods and the content of the collections were examined. The dynamics of relationships between nineteenth-century collectors, Indigenous Australian communities, the source of collections, and collecting institutions were analysed following on from Nicholas Thomas’s entangled objects framework and using the methodologies of Geertz’s thick description, McBryde’s ethnohistory, Denzin’s interpretive biography and Thomas, Znaniecki and Shaw’s biographical analysis. By examining evidence in the primary sources of Indigenous Australian value for colonial material and colonial value of Indigenous material, this dissertation deconstructed the nature of the relationships between agents. It explored the nexus between objects, institutions and individuals. The case studies add depth to the understanding of the collections of Victorian cultural material still held in museums.
- Description: Doctor of Philosophy
- Authors: Donovan, Paul
- Date: 2023
- Type: Text , Thesis , PhD
- Full Text:
- Description: The motivations and methodologies for collecting Indigenous Australian cultural material from colonial Victoria from 1802–1900 have varied widely. Some collectors enacted frontier war to disarm a colonised people and dispossess them of their land. Others sought to salvage a material scientific record of the culture of a race they believed was doomed to imminent extinction or build museum collections for public education. Some sought souvenirs or gifts to document tourism experiences, and some acquired exotic material for commercial enterprise. This dissertation offers a historical overview of political and scientific paradigms underpinning the collection of Indigenous Australian cultural material from nineteenth-century Victoria and characterises the resulting collecting practices. The nature of the collection methods and the content of the collections were examined. The dynamics of relationships between nineteenth-century collectors, Indigenous Australian communities, the source of collections, and collecting institutions were analysed following on from Nicholas Thomas’s entangled objects framework and using the methodologies of Geertz’s thick description, McBryde’s ethnohistory, Denzin’s interpretive biography and Thomas, Znaniecki and Shaw’s biographical analysis. By examining evidence in the primary sources of Indigenous Australian value for colonial material and colonial value of Indigenous material, this dissertation deconstructed the nature of the relationships between agents. It explored the nexus between objects, institutions and individuals. The case studies add depth to the understanding of the collections of Victorian cultural material still held in museums.
- Description: Doctor of Philosophy
The sun-moths (lepidoptera: castniidae) of Victoria, with a detailed study of the pale sun-moth (Synemon selene klug, 1850)
- Authors: Douglas, Fabian
- Date: 2007
- Type: Text , Thesis , Masters
- Full Text:
- Description: The sun-moths (family Castniidae) are a distinctive group of monocot-feeding diurnal Lepidoptera that contains a high proportion of threatened species worldwide. Seven of the eight Victorian Synemon species are considered as threatened. This study has determined through extensive fieldwork that most of these species are now restricted to very small remnants of their particular habitats. These findings have been integrated into a review of the current distribution, biology and habitat requirements of all the Victorian species. This has enabled recommendations for their long-term conservation and management to be made. Special attention was paid to the Pale Sun-moth (Synemon selene Klug, 1850) because it appeared to be nationally endangered and without a government strategy for its conservation. Also, there was strong circumstantial evidence of complete parthenogenesis within all of its Victorian populations. The Victorian occurrences are shown to be parthenogenetic, although specimens of both sexes are known from a ?now-extinct population near Two Wells, South Australia. It was also established that these parthenogenetic populations include five distinct morphs, two or three of which occur sympatrically at four localities in the Wimmera area. Parthenogenetic populations of these morphs cannot interbreed, this potentially restricting their genetic diversity. The extent of genetic diversity was examined with all parthenogenetic Victorian morphs of S. selene. DNA sequencing of 1515 bp of the COI gene revealed a maximum divergence level of 12 bp between some of the morphs and 1 to 2 bp within some morphs. This level of genetic diversity implies that these morphs have continued to evolve in the absence of males through time. This study has highlighted the special academic interest of S. selene and the urgent need for its adequate conservation. Some important directions for future research on the species are also discussed.
- Description: Master of Applied Science
- Authors: Douglas, Fabian
- Date: 2007
- Type: Text , Thesis , Masters
- Full Text:
- Description: The sun-moths (family Castniidae) are a distinctive group of monocot-feeding diurnal Lepidoptera that contains a high proportion of threatened species worldwide. Seven of the eight Victorian Synemon species are considered as threatened. This study has determined through extensive fieldwork that most of these species are now restricted to very small remnants of their particular habitats. These findings have been integrated into a review of the current distribution, biology and habitat requirements of all the Victorian species. This has enabled recommendations for their long-term conservation and management to be made. Special attention was paid to the Pale Sun-moth (Synemon selene Klug, 1850) because it appeared to be nationally endangered and without a government strategy for its conservation. Also, there was strong circumstantial evidence of complete parthenogenesis within all of its Victorian populations. The Victorian occurrences are shown to be parthenogenetic, although specimens of both sexes are known from a ?now-extinct population near Two Wells, South Australia. It was also established that these parthenogenetic populations include five distinct morphs, two or three of which occur sympatrically at four localities in the Wimmera area. Parthenogenetic populations of these morphs cannot interbreed, this potentially restricting their genetic diversity. The extent of genetic diversity was examined with all parthenogenetic Victorian morphs of S. selene. DNA sequencing of 1515 bp of the COI gene revealed a maximum divergence level of 12 bp between some of the morphs and 1 to 2 bp within some morphs. This level of genetic diversity implies that these morphs have continued to evolve in the absence of males through time. This study has highlighted the special academic interest of S. selene and the urgent need for its adequate conservation. Some important directions for future research on the species are also discussed.
- Description: Master of Applied Science
The invisible contract : care-giving in home-based rehabilitation
- Authors: Dow, Briony
- Date: 2003
- Type: Text , Thesis , PhD
- Full Text:
- Description: This study took a critical feminist approach to the analysis of family care-giving in home-based rehabilitation in Victoria, Australia.
- Description: Doctor of Philosophy
- Authors: Dow, Briony
- Date: 2003
- Type: Text , Thesis , PhD
- Full Text:
- Description: This study took a critical feminist approach to the analysis of family care-giving in home-based rehabilitation in Victoria, Australia.
- Description: Doctor of Philosophy
An evaluation of rehabilitation in the home : client, carer and staff perspectives
- Authors: Dow, Briony
- Date: 1999
- Type: Text , Thesis , Masters
- Full Text:
- Description: "This study is a process evaluation of the Ballarat Health Services Rehabilitation in the Home Program (RHP)"
- Description: Master of Arts
- Authors: Dow, Briony
- Date: 1999
- Type: Text , Thesis , Masters
- Full Text:
- Description: "This study is a process evaluation of the Ballarat Health Services Rehabilitation in the Home Program (RHP)"
- Description: Master of Arts
Learning in community and life in community" : the concept of a community as a classroom
- Authors: Downey, Tamara
- Date: 2002
- Type: Text , Thesis , PhD
- Full Text:
- Description: This thesis presents the Leigh community’s view of the impact of Hayden College on Leigh. The study establishes ‘community’ as the key aspect of this atypical school-community partnership in the context of research which shows that effective school-community partnerships are socially and economically beneficial for rural communities. The research question addresses the relationship between a particular college and a specific community. Hayden College was attracted to life in Leigh as a source of learning for its students and to community life in Leigh in particular. The research demonstrates that the school’s vision for its Leigh campus was one based on use of the town environs and interaction with the local people, and that the overarching concept of a community as a classroom entailed Hayden College becoming part of the Leigh community. The nature and quality of the relationship is explored by contrasting the school’s vision with the community’s view of Hayden’s membership of the Leigh community. Inquiry into the idea of a community as a classroom was approached by studying ‘community’ as an ideal concept. The thesis argues that the Hayden in Leigh development is a coincidence of educational and social ideals, clarifying what it means to be part of a community using conceptual analysis of qualitative data collected from the field. The theoretical stance and empirical material in this research show the way in which the power of the concept of community resides at the ideal level. The research finds that the nature of this school-community partnership is characterized by learning exchange and small town renewal but that a threat to the quality of the relationship between college and community is contained in disparate understandings of what constitutes community life. The implications of these findings for the post-Hayden Leigh community and rural schools and communities more generally are that the association of curriculum objectives with community development objectives depends on a healthy reciprocal relationship.
- Description: Doctor of Philosophy
- Authors: Downey, Tamara
- Date: 2002
- Type: Text , Thesis , PhD
- Full Text:
- Description: This thesis presents the Leigh community’s view of the impact of Hayden College on Leigh. The study establishes ‘community’ as the key aspect of this atypical school-community partnership in the context of research which shows that effective school-community partnerships are socially and economically beneficial for rural communities. The research question addresses the relationship between a particular college and a specific community. Hayden College was attracted to life in Leigh as a source of learning for its students and to community life in Leigh in particular. The research demonstrates that the school’s vision for its Leigh campus was one based on use of the town environs and interaction with the local people, and that the overarching concept of a community as a classroom entailed Hayden College becoming part of the Leigh community. The nature and quality of the relationship is explored by contrasting the school’s vision with the community’s view of Hayden’s membership of the Leigh community. Inquiry into the idea of a community as a classroom was approached by studying ‘community’ as an ideal concept. The thesis argues that the Hayden in Leigh development is a coincidence of educational and social ideals, clarifying what it means to be part of a community using conceptual analysis of qualitative data collected from the field. The theoretical stance and empirical material in this research show the way in which the power of the concept of community resides at the ideal level. The research finds that the nature of this school-community partnership is characterized by learning exchange and small town renewal but that a threat to the quality of the relationship between college and community is contained in disparate understandings of what constitutes community life. The implications of these findings for the post-Hayden Leigh community and rural schools and communities more generally are that the association of curriculum objectives with community development objectives depends on a healthy reciprocal relationship.
- Description: Doctor of Philosophy
Why winning a war is no longer necessary : modern warfare and the United States of America through the prism of the wars of Vietnam and Iraq
- Authors: Driver, Strobe
- Date: 2010
- Type: Text , Thesis , PhD
- Full Text:
- Description: This thesis explores the role of warfare and the United States of America (US) in contemporary times. Prior to this, however, pre-modern warfare is examined to illustrate its dynamics prior to the emergence of the nation-state... This thesis is original because it steps beyond the boundaries of what war research has focussed on, which directly postulates victory or defeat in war is what provides unambiguous power-stakes. The thesis addresses why it is no longer necessary to win a war in order for power to be unambiguous and I contend, not needing to win a war, in the traditional sense of the term is the new objective of the US military, and the way in which this is accomplished is examined in detail."
- Description: Doctor of Philosophy
- Authors: Driver, Strobe
- Date: 2010
- Type: Text , Thesis , PhD
- Full Text:
- Description: This thesis explores the role of warfare and the United States of America (US) in contemporary times. Prior to this, however, pre-modern warfare is examined to illustrate its dynamics prior to the emergence of the nation-state... This thesis is original because it steps beyond the boundaries of what war research has focussed on, which directly postulates victory or defeat in war is what provides unambiguous power-stakes. The thesis addresses why it is no longer necessary to win a war in order for power to be unambiguous and I contend, not needing to win a war, in the traditional sense of the term is the new objective of the US military, and the way in which this is accomplished is examined in detail."
- Description: Doctor of Philosophy
Examining factors that influence the relationship between personality and stress
- Authors: Duggan, Leanne
- Date: 2021
- Type: Text , Thesis , PhD
- Full Text:
- Description: Individual differences in the stress response have been linked with numerous factors, including personality traits and mindfulness. Selye (1950) was among the first to detail the physiological stress response that takes place during a stressful event, or after exposure to a stressor. These responses include heart rate changes and the secretion of cortisol into the blood stream, which are key physiological indicators that a stress response is taking place. Lazarus and Folkman (1984) examined appraisal of stressful events, determining that this is crucial to the stress experience. An extension of Lazarus and Folkman’s cognitive appraisal theory was offered by Vollrath (2001), suggesting an individual’s personality accentuates our stress response, therefore, offering an explanation for the individual differences evident in stress responses. The relationship between personality and stress is not straight forward, and other factors, such as affect and mindfulness, may influence this relationship. Thus, this dissertation is divided into three studies. Study 1 examined the moderating and mediating factors of affect on the relationship between personality traits and perceived stress. A total of 290 adults (71% female; Mage = 35.0 years, SD = 12.92) completed an online questionnaire package, comprising of the Perceived Stress Scale, Big Five Inventory, Positive and Negative Affect Schedule, and a number of demographic questions. A hierarchical regression showed that 56% of the variance in perceived stress was explained by personality and affect, and when all personality traits were viewed concurrently and with affect, neuroticism was the only one to significantly explain variance in perceived stress. No moderation effects were found in Study 1 however, positive affect partially mediated the relationship between neuroticism and perceived stress. Study 2 aimed to further the findings of Study 1 by investigating whether trait mindfulness impacted the relationship between personality and stress. A total of 266 adults (70% female; Mage = 34.0 years, SD = 12.68) completed an online questionnaire package, consisting of the Perceived Stress Scale, Big Five Inventory, and Carolina Empirically Derived Mindfulness Scale. A hierarchical regression showed that 58% of the variance in perceived stress was explained by personality and trait mindfulness. When all personality traits and trait mindfulness were viewed together, neuroticism and agreeableness were the only personality traits to significantly explain variance in perceived stress. The sub-scale trait mindfulness attention significantly moderated the relationship between agreeableness and perceived stress, while a partial mediation was found between neuroticism and the sub-scale trait mindfulness acceptance. Study 3 investigated the effectiveness of a brief state-based mindfulness intervention on physiological (cortisol and heart rate) and psychological stress responses, in a participant matched design. A total of 20 participants (60% female; Mage = 34.60 years, SD = 14.68) were recruited from Studies 1 and/or 2 and matched based on gender, dominant personality trait (found in Study 1 and 2), and perceived stress. One participant in each matched pair was then randomly allocated to the mindfulness experimental, or control, group. The mindfulness experimental group completed a 10-minute breathing exercise, prior to completing the Trier Social Stress Test, a verbal presentation and arithmetic task, designed to induce stress. The control group did not complete any activity prior to the stress test. Comparison of the groups indicated that no significant differences in perceived stress were evident pre-post- intervention. Changes in heart rate were noted for all participants during the intervention, though no difference was evident between groups. The results of Study 3 indicate a mindfulness breathing exercise makes little difference to physiological stress responses during a stress task. The combined findings of this dissertation indicate that personality traits can influence the likelihood of an individual experiencing stress. Mindfulness and affect also impact on the relationship between personality and stress and offer some insight into the individual experience of stress responses.
- Description: Doctor of Philosophy
- Authors: Duggan, Leanne
- Date: 2021
- Type: Text , Thesis , PhD
- Full Text:
- Description: Individual differences in the stress response have been linked with numerous factors, including personality traits and mindfulness. Selye (1950) was among the first to detail the physiological stress response that takes place during a stressful event, or after exposure to a stressor. These responses include heart rate changes and the secretion of cortisol into the blood stream, which are key physiological indicators that a stress response is taking place. Lazarus and Folkman (1984) examined appraisal of stressful events, determining that this is crucial to the stress experience. An extension of Lazarus and Folkman’s cognitive appraisal theory was offered by Vollrath (2001), suggesting an individual’s personality accentuates our stress response, therefore, offering an explanation for the individual differences evident in stress responses. The relationship between personality and stress is not straight forward, and other factors, such as affect and mindfulness, may influence this relationship. Thus, this dissertation is divided into three studies. Study 1 examined the moderating and mediating factors of affect on the relationship between personality traits and perceived stress. A total of 290 adults (71% female; Mage = 35.0 years, SD = 12.92) completed an online questionnaire package, comprising of the Perceived Stress Scale, Big Five Inventory, Positive and Negative Affect Schedule, and a number of demographic questions. A hierarchical regression showed that 56% of the variance in perceived stress was explained by personality and affect, and when all personality traits were viewed concurrently and with affect, neuroticism was the only one to significantly explain variance in perceived stress. No moderation effects were found in Study 1 however, positive affect partially mediated the relationship between neuroticism and perceived stress. Study 2 aimed to further the findings of Study 1 by investigating whether trait mindfulness impacted the relationship between personality and stress. A total of 266 adults (70% female; Mage = 34.0 years, SD = 12.68) completed an online questionnaire package, consisting of the Perceived Stress Scale, Big Five Inventory, and Carolina Empirically Derived Mindfulness Scale. A hierarchical regression showed that 58% of the variance in perceived stress was explained by personality and trait mindfulness. When all personality traits and trait mindfulness were viewed together, neuroticism and agreeableness were the only personality traits to significantly explain variance in perceived stress. The sub-scale trait mindfulness attention significantly moderated the relationship between agreeableness and perceived stress, while a partial mediation was found between neuroticism and the sub-scale trait mindfulness acceptance. Study 3 investigated the effectiveness of a brief state-based mindfulness intervention on physiological (cortisol and heart rate) and psychological stress responses, in a participant matched design. A total of 20 participants (60% female; Mage = 34.60 years, SD = 14.68) were recruited from Studies 1 and/or 2 and matched based on gender, dominant personality trait (found in Study 1 and 2), and perceived stress. One participant in each matched pair was then randomly allocated to the mindfulness experimental, or control, group. The mindfulness experimental group completed a 10-minute breathing exercise, prior to completing the Trier Social Stress Test, a verbal presentation and arithmetic task, designed to induce stress. The control group did not complete any activity prior to the stress test. Comparison of the groups indicated that no significant differences in perceived stress were evident pre-post- intervention. Changes in heart rate were noted for all participants during the intervention, though no difference was evident between groups. The results of Study 3 indicate a mindfulness breathing exercise makes little difference to physiological stress responses during a stress task. The combined findings of this dissertation indicate that personality traits can influence the likelihood of an individual experiencing stress. Mindfulness and affect also impact on the relationship between personality and stress and offer some insight into the individual experience of stress responses.
- Description: Doctor of Philosophy
Seeds, soils and moisture : ecophysiology to inform mine site restoration in arid zones
- Authors: Duncan, Corrine
- Date: 2019
- Type: Text , Thesis , PhD
- Full Text:
- Description: Mining in arid regions of Australia is followed by restoration and rehabilitation efforts. However, attempts to reintroduce many woody plant species have been unsuccessful. Water is the key limiting resource to plant growth and seed germination in arid zones. In this thesis, I investigated ecophysiological processes that may help improve recruitment across novel arid landscapes. I tested seed traits and dormancy cues of eight keystone plants and found that six of them had non-dormant, rapidly germinating seeds; a trait we propose is an adaptation to the region’s unpredictable rainfall. To identify the germination niche of species, I incubated seeds under different temperatures and water potentials, and found drought avoidance to be an important survival strategy for arid species. I collected soil samples to compare biophysicochemical properties of reconstructed soils to remnant ecosystems, and found that the distribution of clay content in the reconstructed soils did not mirror the remnant soils, compromising their ability to sustain perennial vegetation. I also monitored soil moisture and found that soil reconstruction reduces rainfall infiltration and retention, and subsequently increases evaporation. The synthesis of these results demonstrate some of the limitations to successful restoration in these systems, such as (1) unknown dormancy cues and poor seed longevity, (2) infrequent and episodic plant recruitment due to water limitation, and (3) reduced hydrological function of reconstructed soils. The failure to reinstate hydrological function is the major constraint to ecological restoration in this arid zone. Nonetheless, results from this study suggest that restoration is possible through more strategic use of seed, careful selection of drought tolerant species, and increasing soil moisture. Further failures to reinstate ecosystem function and community dynamics in arid zones with reconstructed soils can be prevented by understanding the edaphic constraints to plant establishment, and ameliorating conditions to mimic ecohydrological processes in remnant ecosystems.
- Description: Doctor of Philosophy
- Authors: Duncan, Corrine
- Date: 2019
- Type: Text , Thesis , PhD
- Full Text:
- Description: Mining in arid regions of Australia is followed by restoration and rehabilitation efforts. However, attempts to reintroduce many woody plant species have been unsuccessful. Water is the key limiting resource to plant growth and seed germination in arid zones. In this thesis, I investigated ecophysiological processes that may help improve recruitment across novel arid landscapes. I tested seed traits and dormancy cues of eight keystone plants and found that six of them had non-dormant, rapidly germinating seeds; a trait we propose is an adaptation to the region’s unpredictable rainfall. To identify the germination niche of species, I incubated seeds under different temperatures and water potentials, and found drought avoidance to be an important survival strategy for arid species. I collected soil samples to compare biophysicochemical properties of reconstructed soils to remnant ecosystems, and found that the distribution of clay content in the reconstructed soils did not mirror the remnant soils, compromising their ability to sustain perennial vegetation. I also monitored soil moisture and found that soil reconstruction reduces rainfall infiltration and retention, and subsequently increases evaporation. The synthesis of these results demonstrate some of the limitations to successful restoration in these systems, such as (1) unknown dormancy cues and poor seed longevity, (2) infrequent and episodic plant recruitment due to water limitation, and (3) reduced hydrological function of reconstructed soils. The failure to reinstate hydrological function is the major constraint to ecological restoration in this arid zone. Nonetheless, results from this study suggest that restoration is possible through more strategic use of seed, careful selection of drought tolerant species, and increasing soil moisture. Further failures to reinstate ecosystem function and community dynamics in arid zones with reconstructed soils can be prevented by understanding the edaphic constraints to plant establishment, and ameliorating conditions to mimic ecohydrological processes in remnant ecosystems.
- Description: Doctor of Philosophy
- Authors: Duthie, John
- Date: 1999
- Type: Text , Thesis , Masters
- Full Text: false
- Description: "The aim of this thesis was to investigate the process by which policy regarding the use of computers in the classroom was developed in a secondary school in a Victorian provincial city. It seeks to determine whether a policy determined at a State Education Department level may be redefined at a local school administrative level and the changes that may occur when that policy is implemented in the classroom"
- Description: Master of Education
Approximations for some classes of optimal control problems with state constraints and repetitive control systems
- Authors: Dymkou, Siarhei
- Date: 2005
- Type: Text , Thesis , Masters
- Full Text: false
- Description: This report presents the investigation on the research work "Approximations for some classes of optimal control problems with state constraints and repetitive control systems". This report mainly gives the theoretical part of the research which is based on the numerical methods that are developed. It is conjectured that the corresponding algorithms will be realized as computer programs after which they can be used in practical work.
- Description: Master of Information Technology
- Authors: Dymkou, Siarhei
- Date: 2005
- Type: Text , Thesis , Masters
- Full Text: false
- Description: This report presents the investigation on the research work "Approximations for some classes of optimal control problems with state constraints and repetitive control systems". This report mainly gives the theoretical part of the research which is based on the numerical methods that are developed. It is conjectured that the corresponding algorithms will be realized as computer programs after which they can be used in practical work.
- Description: Master of Information Technology