Human rights for or by the people? Securing economic, social and cultural rights in a post-war/post-conflict context
- Authors: Fernando, Dinesha
- Date: 2023
- Type: Text , Thesis , PhD
- Full Text:
- Description: This grounded theory (GT) study explores the economic, social and cultural (ESC) conditions and associated rights in post-war Sri Lanka during the past 10 years (2009– 2019). Tamils have been left in a challenging position after the war in terms of how other citizens have been perceiving them and their uniqueness has been disputed in terms of their rights. The overall position of the Tamils in the country has changed in recent history, which is a unique situation not only for the Tamils but also for the whole country. The 30-year Sri Lankan civil war is an important example of transformations during resettlement and the transitions back to normalcy. For many years, the war produced serious loss of life, assets and property, and in addition to these losses, the majority of people were affected either directly or indirectly. It is probably without choice that over the past decades, the Sri Lankans have faced significant economic, social, and cultural rights (ESCR) challenges, especially in the north of the country. In the 10 years since the Sri Lankan Government brought an end to the devastating civil war, the country has seen improvements in the overall security and freedom of movement, infrastructure, investment, and growth; yet there remain many ESCR challenges. This thesis identifies the forces that have been acting for and against securing ESCR for minority Tamils in post-war Sri Lanka. Specifically, the thesis identifies the strategies to secure ESCR in a post-war situation when ESCR are absent or insecure. The grounded-up nature of this thesis explores capturing the ESCR-related post-war experiences, attributes and learnings rather than gathering facts and describing acts. The thesis was designed to address the research questions in a direct manner: (1) What are the forces acting for and against securing ESCR for minority Tamils in post-war Sri Lanka; and (2) What would be the most effective strategies for securing ESCR for minority Tamils in post-war Sri Lanka? This constructivist grounded theory study collected qualitative data through in-depth, one-on-one semi-structured interviews and observations. In an effort to chart and examine what individuals and communities do in the absence of secure ESCR, I uncovered surprising and interesting coping strategies adopted by communities in their efforts to secure ESCR. A significant aim of this study was to share the results/findings with regional policymakers, especially in the north of Sri Lanka. Furthermore, with the availability of funds, this study could be expanded to incorporate a larger context in the form of a book published to assist in improving the lives of war-affected victims’ in terms of future access, promotion, protection and enjoyment of ESCR.
- Description: Doctor of Philosophy
- Authors: Fernando, Dinesha
- Date: 2023
- Type: Text , Thesis , PhD
- Full Text:
- Description: This grounded theory (GT) study explores the economic, social and cultural (ESC) conditions and associated rights in post-war Sri Lanka during the past 10 years (2009– 2019). Tamils have been left in a challenging position after the war in terms of how other citizens have been perceiving them and their uniqueness has been disputed in terms of their rights. The overall position of the Tamils in the country has changed in recent history, which is a unique situation not only for the Tamils but also for the whole country. The 30-year Sri Lankan civil war is an important example of transformations during resettlement and the transitions back to normalcy. For many years, the war produced serious loss of life, assets and property, and in addition to these losses, the majority of people were affected either directly or indirectly. It is probably without choice that over the past decades, the Sri Lankans have faced significant economic, social, and cultural rights (ESCR) challenges, especially in the north of the country. In the 10 years since the Sri Lankan Government brought an end to the devastating civil war, the country has seen improvements in the overall security and freedom of movement, infrastructure, investment, and growth; yet there remain many ESCR challenges. This thesis identifies the forces that have been acting for and against securing ESCR for minority Tamils in post-war Sri Lanka. Specifically, the thesis identifies the strategies to secure ESCR in a post-war situation when ESCR are absent or insecure. The grounded-up nature of this thesis explores capturing the ESCR-related post-war experiences, attributes and learnings rather than gathering facts and describing acts. The thesis was designed to address the research questions in a direct manner: (1) What are the forces acting for and against securing ESCR for minority Tamils in post-war Sri Lanka; and (2) What would be the most effective strategies for securing ESCR for minority Tamils in post-war Sri Lanka? This constructivist grounded theory study collected qualitative data through in-depth, one-on-one semi-structured interviews and observations. In an effort to chart and examine what individuals and communities do in the absence of secure ESCR, I uncovered surprising and interesting coping strategies adopted by communities in their efforts to secure ESCR. A significant aim of this study was to share the results/findings with regional policymakers, especially in the north of Sri Lanka. Furthermore, with the availability of funds, this study could be expanded to incorporate a larger context in the form of a book published to assist in improving the lives of war-affected victims’ in terms of future access, promotion, protection and enjoyment of ESCR.
- Description: Doctor of Philosophy
Keynes from below : a social history of Second World War Keynesian economics
- Authors: Coventry, Cameron
- Date: 2023
- Type: Text , Thesis , PhD
- Full Text:
- Description: The macroeconomic agenda known as Keynesianism was highly contentious when it was introduced to Australia during the Second World War. Using a ‘history from below’ approach – correctly understood as a society-wide analysis – this thesis reveals the debates and the participants in the social nexus that considered the work of the British economist John Maynard Keynes (1883-1946). It shows that the populous willed a break from the status quo, ranging in favour of socialism to a non-capitalist third way. Support for Keynesianism was isolated to capital and the political right wing, with labour, centrists, the left and far-left strongly opposed. As the war progressed, apathy set in and Keynesianism came to be seen by opponents as either a non-capitalist third way or as the triumph of the possible over the desirable socialist “new order”. From 1936, Keynes had popularised a new economics based on full employment planning that quickly displaced ‘laissez faire capitalism’ in the minds of economists and policymakers. As war broke out, Keynes submitted a war finance plan for public consideration in the United Kingdom. Essentially, the plan addressed the practical aspects of managing an economy experiencing full employment. It contained measures to reduce wage growth to counter rising inflation, welfare for mothers and children to protect their well-being – but also the population growth essential to future economic growth – and the partial repayment of seized wages at the end of the war that would form the basis of post-war “reconstruction”. The Keynes plan generated interest in Australia which rapidly turned to speculation about its applicability. A fierce debate raged, divided on broad political lines, for two years that would shift public opinion and contribute significantly to the rise of the Curtin government (1941-45). However, once enthusiasm for reconstruction waned, it was this government that brought about post-war Keynesianism.
- Description: Doctor of Philosophy
- Authors: Coventry, Cameron
- Date: 2023
- Type: Text , Thesis , PhD
- Full Text:
- Description: The macroeconomic agenda known as Keynesianism was highly contentious when it was introduced to Australia during the Second World War. Using a ‘history from below’ approach – correctly understood as a society-wide analysis – this thesis reveals the debates and the participants in the social nexus that considered the work of the British economist John Maynard Keynes (1883-1946). It shows that the populous willed a break from the status quo, ranging in favour of socialism to a non-capitalist third way. Support for Keynesianism was isolated to capital and the political right wing, with labour, centrists, the left and far-left strongly opposed. As the war progressed, apathy set in and Keynesianism came to be seen by opponents as either a non-capitalist third way or as the triumph of the possible over the desirable socialist “new order”. From 1936, Keynes had popularised a new economics based on full employment planning that quickly displaced ‘laissez faire capitalism’ in the minds of economists and policymakers. As war broke out, Keynes submitted a war finance plan for public consideration in the United Kingdom. Essentially, the plan addressed the practical aspects of managing an economy experiencing full employment. It contained measures to reduce wage growth to counter rising inflation, welfare for mothers and children to protect their well-being – but also the population growth essential to future economic growth – and the partial repayment of seized wages at the end of the war that would form the basis of post-war “reconstruction”. The Keynes plan generated interest in Australia which rapidly turned to speculation about its applicability. A fierce debate raged, divided on broad political lines, for two years that would shift public opinion and contribute significantly to the rise of the Curtin government (1941-45). However, once enthusiasm for reconstruction waned, it was this government that brought about post-war Keynesianism.
- Description: Doctor of Philosophy
Language and the built, natural, social, and symbolic environments during bad news conversations for people with a life-limiting illness : a case study methodology
- Authors: Miller, Elizabeth
- Date: 2023
- Type: Text , Thesis , PhD
- Full Text: false
- Description: Background Bad news of a life-limiting illness is devastating to receive and remains a difficult conversation for healthcare professionals to undertake, despite education and training. Bad news conversations occur anywhere along an illness trajectory and often take place with the acute ward that is busy, sterile, and unfamiliar to patients and family members. Method A qualitative case study research methodology was used to explore the case, being the phenomenon of receiving bad news of a life-limiting illness for people living in regional Victoria, Australia. The literature was examined to understand the physical hospital environment and truth disclosure within bad news delivery. Data was collected between November 2021 and August 2022, through 14 semi-structured interviews with patients and family members, 13 semi-structured interviews with registered nurses, a three week observation period at a private regional hospital. The theoretical framework of Therapeutic Landscapes enabled the built, nature, social, and symbolic environments to be examined. Data was analysed using reflexive thematic analysis and qualitative content analysis. Results A review of the literature resulted in the development of the "SSAFER place approach" concept model and found that patients need to feel safe in the hospital environment and that safety is equated with space for family and familiar notions of home. Nurses aimed to provide holistic person-centred through therapeutic relationships with patients and family members and create a home-life environment. It was found that a calm and quiet environment was essential for absorbing bad news, and patients and family members believed the way bad news was delivered, and the language used often needed to be improved. The audit of 17 family meeting s highlighted that death and dying language was rarely documented, and late referrals to palliative care services often occurred. The "Breaking bad news model," created from a second literature review supported the results of the thesis. Due to the COVID-19 pandemic, patients, family members and nurses were negatively affected, creating a non-therapeutic social environment. Conclusion For patients and family members, a therapeutic landscape comprised of therapeutic relationship, open, honest and empathetic language delivered within holistic person-centred care. In addition, care needed to be provided within a calm and quiet environment to allow absorption and processing of bad news. Nurses providing palliative care aimed to meet patients and family needs holistically within an environment aesthetically tuned to be more home-like than clinical.
- Description: Doctor of Philosophy
- Authors: Miller, Elizabeth
- Date: 2023
- Type: Text , Thesis , PhD
- Full Text: false
- Description: Background Bad news of a life-limiting illness is devastating to receive and remains a difficult conversation for healthcare professionals to undertake, despite education and training. Bad news conversations occur anywhere along an illness trajectory and often take place with the acute ward that is busy, sterile, and unfamiliar to patients and family members. Method A qualitative case study research methodology was used to explore the case, being the phenomenon of receiving bad news of a life-limiting illness for people living in regional Victoria, Australia. The literature was examined to understand the physical hospital environment and truth disclosure within bad news delivery. Data was collected between November 2021 and August 2022, through 14 semi-structured interviews with patients and family members, 13 semi-structured interviews with registered nurses, a three week observation period at a private regional hospital. The theoretical framework of Therapeutic Landscapes enabled the built, nature, social, and symbolic environments to be examined. Data was analysed using reflexive thematic analysis and qualitative content analysis. Results A review of the literature resulted in the development of the "SSAFER place approach" concept model and found that patients need to feel safe in the hospital environment and that safety is equated with space for family and familiar notions of home. Nurses aimed to provide holistic person-centred through therapeutic relationships with patients and family members and create a home-life environment. It was found that a calm and quiet environment was essential for absorbing bad news, and patients and family members believed the way bad news was delivered, and the language used often needed to be improved. The audit of 17 family meeting s highlighted that death and dying language was rarely documented, and late referrals to palliative care services often occurred. The "Breaking bad news model," created from a second literature review supported the results of the thesis. Due to the COVID-19 pandemic, patients, family members and nurses were negatively affected, creating a non-therapeutic social environment. Conclusion For patients and family members, a therapeutic landscape comprised of therapeutic relationship, open, honest and empathetic language delivered within holistic person-centred care. In addition, care needed to be provided within a calm and quiet environment to allow absorption and processing of bad news. Nurses providing palliative care aimed to meet patients and family needs holistically within an environment aesthetically tuned to be more home-like than clinical.
- Description: Doctor of Philosophy
Mental health nurses’ attitudes, empathy and caring efficacy towards consumers with co-existing mental health and drug and alcohol problems : a mixed methods study
- Authors: Palavila, Roopalal
- Date: 2023
- Type: Text , Thesis , PhD
- Full Text:
- Description: Background: Dual diagnosis is a significant cause of disability worldwide and accounts for 13% of the disease burden in Australia. In 2014-15, more than half of emergency hospital admissions in Australia were due to psychological and behavioural problems associated with illegal substance use. Mental health nurses play a critical role in caring for consumers with dual diagnosis. However, there is a shortage of evidence about mental health nurses’ attitudes, empathy, and caring efficacy towards these consumers. Materials and Methods: This concurrent mixed methods study examined mental health nurses’ attitudes, empathy, and caring efficacy towards consumers with dual diagnosis in Australian mental health settings. Data were collected between December 2019 and November 2020. A total of 103 mental health nurses completed the Comorbidity Problems Perceptions Questionnaire, 96 completed the Toronto Empathy Questionnaire, and 84 completed the Caring Efficacy Scale. Seventeen mental health nurses participated in semi-structured interviews. The data were analysed using regression, themes and joint displays. Results: Mental health nurses displayed a positive attitude (M = 83.97, SD = 28.49), empathy (M = 47.71, SD = 8.28) and caring efficacy (M = 145.70, SD = 19.92) towards consumers with dual diagnosis. Factors identified as contributing to a positive attitude were a high level of work experience (
- Description: Doctor of Philosophy
- Authors: Palavila, Roopalal
- Date: 2023
- Type: Text , Thesis , PhD
- Full Text:
- Description: Background: Dual diagnosis is a significant cause of disability worldwide and accounts for 13% of the disease burden in Australia. In 2014-15, more than half of emergency hospital admissions in Australia were due to psychological and behavioural problems associated with illegal substance use. Mental health nurses play a critical role in caring for consumers with dual diagnosis. However, there is a shortage of evidence about mental health nurses’ attitudes, empathy, and caring efficacy towards these consumers. Materials and Methods: This concurrent mixed methods study examined mental health nurses’ attitudes, empathy, and caring efficacy towards consumers with dual diagnosis in Australian mental health settings. Data were collected between December 2019 and November 2020. A total of 103 mental health nurses completed the Comorbidity Problems Perceptions Questionnaire, 96 completed the Toronto Empathy Questionnaire, and 84 completed the Caring Efficacy Scale. Seventeen mental health nurses participated in semi-structured interviews. The data were analysed using regression, themes and joint displays. Results: Mental health nurses displayed a positive attitude (M = 83.97, SD = 28.49), empathy (M = 47.71, SD = 8.28) and caring efficacy (M = 145.70, SD = 19.92) towards consumers with dual diagnosis. Factors identified as contributing to a positive attitude were a high level of work experience (
- Description: Doctor of Philosophy
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
- Authors: Carino, James
- Date: 2023
- Type: Text , Thesis , PhD
- Full Text: false
- Description: This thesis concerns individuals who develop dementia symptoms before 65 years of age (called younger-onset dementia, or YOD) while employed, which has significant personal, financial and social effects due to the commitments and responsibilities of families and work. This thesis aims to identify employment-related work strategies to allow people with dementia to continue to work. Four linked studies consistent with the study aim were designed and implemented. In Chapter 3, Study 1, a review of employer approaches to employees with dementia, evaluated nine studies related to dementia and work. The main analysis extracted, grouped and classified employer actions towards employees with dementia in these studies. Two in three employer responses to employees with dementia were ineffective in supporting employees. Poor understanding of the difficulties of those living with dementia appeared to be the main cause. Better knowledge among individuals experiencing dementia symptoms and their employers is needed. In Chapter 4, Study 2, a review of guidance materials related to dementia in the workplace sought to identify and review the availability, structure and content of information to support employees or employers dealing with dementia. Guidance information published by dementia organisations in English-speaking countries such as Australia, Canada, New Zealand, Singapore, the United Kingdom (England, Scotland and Ireland) and the United States of America was analysed and compiled. Dementia websites were found to offer relevant, high-quality content, but this can be fragmented and difficult to find. Few organisations covered the range of relevant content. Most information was aimed at employees with dementia symptoms rather than their employers. Information gaps for employees with dementia included the importance of early diagnosis and assistive technology applications. Employer information gaps included workplace identification of dementia, employee retention and managing the wider work team around the person with dementia. Chapter 5 addressed Study 3, employer approaches to employees with dementia at work. This chapter extended existing research exploring the experience of dementia at work. Four groups were engaged in semi-structured interviews: (1) employers and human resource (HR) managers; (2) professionals supporting employers such as HR consultants; (3) employees with dementia who were working or had left work within the past two years; and (4) professionals supporting people living with dementia. The study identified employee and employer actions and assessed how dementia could be managed using relevant information and approaches to maintain viable employment. As well as the need for greater awareness of workplace cognitive impairment, this study identified solutions to prolong employment. Suggestions included using relevant expertise and external peer support, implementing self-management and personal strategies, raising employer awareness of employee rights and employer responsibilities, employee engagement in decisions about them and their work and assistance with the transition from work. An analytical approach, considering the person, task and organisation may assist in devising more effective employer implementation approaches. Study 4, guidance model document feedback (presented in Chapter 6), evaluated two model guidance documents (one for employers, the other for employees) developed from Studies 1, 2 and 3. This study aimed to determine the relevance and completeness of the content and identify potential enhancements. Study 3 participants were recontacted for this study. The proposed documents were received positively. Suggested improvements included care in the use of terms such as ‘dementia’, moving beyond ‘dementia friendly’ to inclusivity and clearer specification of the responsibilities of HR practitioners and employers. Chapter 7 placed the findings across the four studies into the context of increased workplace and societal attention to mental health, wellbeing, cognitive fitness and neurodiversity. Growing awareness of these issues is argued to be positive for future workplace understanding, acceptance and management of conditions such as dementia and cognitive impairment. HR leadership and expertise in dealing with dementia in the workplace are pertinent to achieving this goal. This thesis elaborates on the practical importance of information and communication in understanding cognitive impairment at work. Awareness that individuals in the early stages of cognitive difficulties maintain the capacity to continue to work can be improved. A review of information designed to support workplace decision-making has identified content and pathways to improve workplace knowledge and awareness. In conclusion, dementia at work can be managed by integrating awareness of dementia with mental health and cognition in workplaces. Greater attention to the diversity of cognitive abilities and processes in organisations can improve the life experience of employees living with dementia, their contribution to work, overall work performance and satisfaction.
- Description: Doctor of Philosophy
Physical and emotional touchpoints influencing user journeys : how mothers navigate through the maternity and early childhood development service systems in a rural Victorian city
- Authors: O'Neill, Carina
- Date: 2023
- Type: Text , Thesis , Masters
- Full Text:
- Description: The quality of maternity and early childhood development service systems has a profound impact on children’s capacity to grow, learn and thrive throughout their lifespans. This research study investigated the experiences of first-time mothers attempting to navigate complex, disjointed service systems in a small rural Australian city. The study aimed to identify the critical touchpoints that first-time mothers often encountered when navigating maternity and early childhood development service systems from conception to school and then generate a broader understanding of how the individual and collective user might navigate through this period. In my capacity as the manager of a major early childhood service in this small city, I was able to apply my critical, reflexive insights of the service to the development of this research study. This descriptive, retrospective study employed a qualitative methodology. A novel, user-centred design approach – drawing upon the concept of service touchpoints – was applied to explain families’ experiences of using services from the point of their child’s conception until the commencement of school. A self-selected sample of eight first-time mothers participated in the study. Comprehensive, tape-recorded interviews were conducted with the mothers that incorporated innovative tools for generating ideas and identifying critical touchpoints during the mothers’ user journey. The data was analysed to produce four products: a cross-case, thematic analysis of the families’ experiences; a visual user journey map containing the physical and emotional service touchpoints for each individual family; and two customer journey maps (one showing physical touchpoints; the other showing emotional touchpoints) to visually represent the typical user’s experience. The four major themes that emerged were: (1) dissonance between expectations and the lived reality; (2) the continuum of support from ideal to going “above and beyond”; (3) social isolation and lack of information; and (4) the need to become experts/advocates to make informed choices. The two conjoint customer journey maps revealed that a lack of service knowledge, unclear processes and disruptions in service transitions impacted on the physical service experience. However, surprisingly, it was the emotional – rather than the physical –touchpoints that were most significant for these mothers.
- Description: Masters of the Arts
- Authors: O'Neill, Carina
- Date: 2023
- Type: Text , Thesis , Masters
- Full Text:
- Description: The quality of maternity and early childhood development service systems has a profound impact on children’s capacity to grow, learn and thrive throughout their lifespans. This research study investigated the experiences of first-time mothers attempting to navigate complex, disjointed service systems in a small rural Australian city. The study aimed to identify the critical touchpoints that first-time mothers often encountered when navigating maternity and early childhood development service systems from conception to school and then generate a broader understanding of how the individual and collective user might navigate through this period. In my capacity as the manager of a major early childhood service in this small city, I was able to apply my critical, reflexive insights of the service to the development of this research study. This descriptive, retrospective study employed a qualitative methodology. A novel, user-centred design approach – drawing upon the concept of service touchpoints – was applied to explain families’ experiences of using services from the point of their child’s conception until the commencement of school. A self-selected sample of eight first-time mothers participated in the study. Comprehensive, tape-recorded interviews were conducted with the mothers that incorporated innovative tools for generating ideas and identifying critical touchpoints during the mothers’ user journey. The data was analysed to produce four products: a cross-case, thematic analysis of the families’ experiences; a visual user journey map containing the physical and emotional service touchpoints for each individual family; and two customer journey maps (one showing physical touchpoints; the other showing emotional touchpoints) to visually represent the typical user’s experience. The four major themes that emerged were: (1) dissonance between expectations and the lived reality; (2) the continuum of support from ideal to going “above and beyond”; (3) social isolation and lack of information; and (4) the need to become experts/advocates to make informed choices. The two conjoint customer journey maps revealed that a lack of service knowledge, unclear processes and disruptions in service transitions impacted on the physical service experience. However, surprisingly, it was the emotional – rather than the physical –touchpoints that were most significant for these mothers.
- Description: Masters of the Arts
- Authors: McCoy, Jennifer
- Date: 2023
- Type: Text , Thesis , PhD
- Full Text: false
- Description: This thesis explores the contribution of Scottish selectors to the social development of the Omeo region of remote eastern Victoria, Australia, during the period 1875 to 1900, drawing on the experiences of people with familial connection to the McCoy family. These people were mostly agricultural labourers, prevented from land ownership in Scotland, and handloom weavers whose skills had been lost to the industrial revolution. Their lives had been changed by economic circumstances in Scotland, and by taking advantage of the Victorian Selection Acts, they achieved economic security while contributing to the development of the area. This thesis positions land as central to the economic and social development of this area. It was a remote, geographically isolated area where communication and climate challenges had defeated many. Using a documentary historical methodology, it examines the impact of each wave of Europeans, explorers, squatters, miners, and selectors on the land, with the corresponding dispossession of Aboriginal people, revealing the agency of those Aboriginal people in their responses, as well as the resilience of the settlers. Land records and demographic data have been used extensively to chart the land holdings and businesses of selected Scottish family members, positioning their place in the developing society, as community centres and activities flourished in response to a secure and growing population. As part of the Scottish diaspora in Australia, it highlights some of the qualities they brought with them to their new environment; it demonstrates the resilience people could bring to challenging circumstances; and it reveals the wealth of creative opportunities that grew and were encouraged, when limited communication to the outside world demanded a call on their own resources. The study also uncovers questions for further research, amongst them: a more detailed investigation of the role of newspapers, which are the primary source of historical information available; and the role played by women in building and supporting families even through crises, and whose records are buried in personal family records or diminished in newspaper stories.
- Description: Doctor of Philosophy
Statistical assessment of Australian bushfire conditions : long-term changes and variability
- Authors: Biswas, Soubhik
- Date: 2023
- Type: Text , Thesis , PhD
- Full Text:
- Description: In the wake of increasing bushfire impacts in recent decades across the Australian landscape, questions arise regarding the role played by weather conditions, climate variability and long-term climate change. This thesis seeks to quantify the following components that can influence fire risk: (1) the effects of weather and mean climate conditions, (2) large-scale drivers of natural climate variability, (3) the influence of extreme weather events and (4) the contribution of long-term anthropogenic climate change. Bushfire risks associated with weather and climate factors in Australia are generally assessed using indices such as the Forest Fire Danger Index (FFDI). The FFDI is used in this study, calculated from daily values of rainfall, relative humidity, temperature and wind speed, providing a generalised approach for combining those four weather factors known to influence fire behaviour. This study also aims to fill several knowledge gaps in the literature. For example, a comprehensive study of climatology, variability and trends in Australia's fire weather conditions was never attempted before using a high-resolution and a very long-term fire weather dataset. The fire weather conditions were analysed using a long-term FFDI dataset constructed from 20th Century reanalysis climatic data with bias correction applied because reconstructed weather datasets like 20th Century reanalysis products often show systemic biases. Various statistical bias correction approaches based on quantile-quantile matching were compared, and a spline-based method was selected due to its higher precision in correcting a distribution for the purposes of this study. The relationship of this calibrated FFDI dataset with the climate drivers of El Niño-Southern Oscillation (ENSO), Indian Ocean Dipole (IOD), Southern Annular Mode (SAM) and Interdecadal Pacific Oscillation (IPO) was analysed. Results are mapped to show the regional and seasonal fluctuations in the severe fire weather across Australia during different combinations of ENSO, IOD, and SAM phases. During the austral spring and summer seasons, the highest frequency of severe fire weather conditions occurred for the combination of positive ENSO (i.e., El Nino), positive IOD and negative SAM. The calibrated FFDI dataset derived from bias-corrected Twentieth Century Reanalysis data was further used to study the long-term climate change trends in Australian fire weather conditions. A general positive trend in the number of extreme FFDI days was reported across Australia, except for New South Wales in Spring where a statistically non-significant negative trend was observed. Temperature and relative humidity were found to be the most critical climatic variables influencing fire weather trends across the country, noting that relative humidity is partly based on temperature. The applications of this work range from being useful for various stakeholders in framing new climate change adaptation policies to being used for seasonal outlooks and planning by fire management teams.
- Description: Doctor of Philosophy
- Authors: Biswas, Soubhik
- Date: 2023
- Type: Text , Thesis , PhD
- Full Text:
- Description: In the wake of increasing bushfire impacts in recent decades across the Australian landscape, questions arise regarding the role played by weather conditions, climate variability and long-term climate change. This thesis seeks to quantify the following components that can influence fire risk: (1) the effects of weather and mean climate conditions, (2) large-scale drivers of natural climate variability, (3) the influence of extreme weather events and (4) the contribution of long-term anthropogenic climate change. Bushfire risks associated with weather and climate factors in Australia are generally assessed using indices such as the Forest Fire Danger Index (FFDI). The FFDI is used in this study, calculated from daily values of rainfall, relative humidity, temperature and wind speed, providing a generalised approach for combining those four weather factors known to influence fire behaviour. This study also aims to fill several knowledge gaps in the literature. For example, a comprehensive study of climatology, variability and trends in Australia's fire weather conditions was never attempted before using a high-resolution and a very long-term fire weather dataset. The fire weather conditions were analysed using a long-term FFDI dataset constructed from 20th Century reanalysis climatic data with bias correction applied because reconstructed weather datasets like 20th Century reanalysis products often show systemic biases. Various statistical bias correction approaches based on quantile-quantile matching were compared, and a spline-based method was selected due to its higher precision in correcting a distribution for the purposes of this study. The relationship of this calibrated FFDI dataset with the climate drivers of El Niño-Southern Oscillation (ENSO), Indian Ocean Dipole (IOD), Southern Annular Mode (SAM) and Interdecadal Pacific Oscillation (IPO) was analysed. Results are mapped to show the regional and seasonal fluctuations in the severe fire weather across Australia during different combinations of ENSO, IOD, and SAM phases. During the austral spring and summer seasons, the highest frequency of severe fire weather conditions occurred for the combination of positive ENSO (i.e., El Nino), positive IOD and negative SAM. The calibrated FFDI dataset derived from bias-corrected Twentieth Century Reanalysis data was further used to study the long-term climate change trends in Australian fire weather conditions. A general positive trend in the number of extreme FFDI days was reported across Australia, except for New South Wales in Spring where a statistically non-significant negative trend was observed. Temperature and relative humidity were found to be the most critical climatic variables influencing fire weather trends across the country, noting that relative humidity is partly based on temperature. The applications of this work range from being useful for various stakeholders in framing new climate change adaptation policies to being used for seasonal outlooks and planning by fire management teams.
- Description: Doctor of Philosophy
Superannuation in Australia : a mixed methods study into engagement of superannuants
- Authors: Clinton, Teresa
- Date: 2023
- Type: Text , Thesis , PhD
- Full Text:
- Description: Compulsory superannuation is a significant component of the Australian Government’s strategy to encourage citizens to take responsibility for funding their retirement. This project extends current knowledge regarding superannuants financial literacy and their preparedness to engage in the decision process that is embodied in the main communication document received from superannuation funds: the benefit statement. The purpose of this study involved two research questions. The first asked: What are the characteristics and determinants of a benefit statement as a form of financial communication to superannuants? The study aimed to determine if the benefit statement is fit for purpose and involved an examination of industry benefit statements. Institutional Theory was used to explain why benefit statements take their current form. The second research question considers to what extent superannuants understand and engage with the benefit statement? A survey of academics working at Australian public universities was undertaken to explore their financial literacy, understanding and extent of engagement they have with their superannuation via the benefit statement. The OECD/NIFE (2018, p. 4) definition of financial literacy was used for this research study as it incorporates “a combination of awareness, knowledge, skill, attitude and behaviour necessary to make sound financial decisions and ultimately achieve individual financial wellbeing”. The Theory of Planned Behaviour provides an explanation and a greater understanding of attitude and behaviour between demographics for example, age, gender, and education level that contribute to engagement with superannuation. A content analysis was used for research question 1, and found that due to legalisation requirements, a similar format has been adopted by most funds. There was however a lack of information which would allow superannuants the ability to track their preparedness for the amount required to fund retirement. With regard to the second research question, the results from the high socioeconomic group revealed that engagement with superannuation is not reflected by gender or education but rather age approaching retirement. As retirement approaches engagement increases. The attitude of participants towards superannuation was positive with most displaying high levels of self-efficacy however, a pre- and post-survey self-evaluation of financial literacy questions revealed a statistically significant decrease in scores indicating survey respondents were not actually aware of their lack of understanding of superannuation. The combined results from the survey and the content analysis indicate that the quality of disclosure is not sufficient to influence superannuants’ active engagement with their superannuation. This study highlights that engagement with superannuation is driven by personal circumstances and individual differences and the benefit statement needs to be more personally relevant to a broader range of individuals to encourage engagement with retirement planning. The findings help to understand heterogeneity in individuals’ propensity to engage with superannuation and provide an insight into their attitudes and behaviour. The research offers a contribution to the literature on superannuation fund benefit statement disclosure practices and provides an insight for policymakers on the effect these statements they have on superannuants.
- Description: Doctor of Philosophy
- Authors: Clinton, Teresa
- Date: 2023
- Type: Text , Thesis , PhD
- Full Text:
- Description: Compulsory superannuation is a significant component of the Australian Government’s strategy to encourage citizens to take responsibility for funding their retirement. This project extends current knowledge regarding superannuants financial literacy and their preparedness to engage in the decision process that is embodied in the main communication document received from superannuation funds: the benefit statement. The purpose of this study involved two research questions. The first asked: What are the characteristics and determinants of a benefit statement as a form of financial communication to superannuants? The study aimed to determine if the benefit statement is fit for purpose and involved an examination of industry benefit statements. Institutional Theory was used to explain why benefit statements take their current form. The second research question considers to what extent superannuants understand and engage with the benefit statement? A survey of academics working at Australian public universities was undertaken to explore their financial literacy, understanding and extent of engagement they have with their superannuation via the benefit statement. The OECD/NIFE (2018, p. 4) definition of financial literacy was used for this research study as it incorporates “a combination of awareness, knowledge, skill, attitude and behaviour necessary to make sound financial decisions and ultimately achieve individual financial wellbeing”. The Theory of Planned Behaviour provides an explanation and a greater understanding of attitude and behaviour between demographics for example, age, gender, and education level that contribute to engagement with superannuation. A content analysis was used for research question 1, and found that due to legalisation requirements, a similar format has been adopted by most funds. There was however a lack of information which would allow superannuants the ability to track their preparedness for the amount required to fund retirement. With regard to the second research question, the results from the high socioeconomic group revealed that engagement with superannuation is not reflected by gender or education but rather age approaching retirement. As retirement approaches engagement increases. The attitude of participants towards superannuation was positive with most displaying high levels of self-efficacy however, a pre- and post-survey self-evaluation of financial literacy questions revealed a statistically significant decrease in scores indicating survey respondents were not actually aware of their lack of understanding of superannuation. The combined results from the survey and the content analysis indicate that the quality of disclosure is not sufficient to influence superannuants’ active engagement with their superannuation. This study highlights that engagement with superannuation is driven by personal circumstances and individual differences and the benefit statement needs to be more personally relevant to a broader range of individuals to encourage engagement with retirement planning. The findings help to understand heterogeneity in individuals’ propensity to engage with superannuation and provide an insight into their attitudes and behaviour. The research offers a contribution to the literature on superannuation fund benefit statement disclosure practices and provides an insight for policymakers on the effect these statements they have on superannuants.
- Description: Doctor of Philosophy
The Glovers : a settler family in Van Diemen’s land
- Authors: Hodson, Susan
- Date: 2023
- Type: Text , Thesis , Masters
- Full Text:
- Description: This thesis explores the experiences of the members of the Glover family, who migrated to Van Diemen’s Land in two parties. The first party consisted of the three sons of John Glover, the colonial painter (one accompanied by an English wife), who arrived in 1829; the second party, which included John Glover himself, arrived in 1831. This thesis explores the Glovers’ attempts to begin new lives as farmers after receiving free land grants from the colonial government, employing convict servants assigned to them. The Glover family members were witnesses to the late stages of the Black Wars. John Glover Senior’s arrival was after the Black Line offensive in 1830, but he sought out members of the Tasmanian Aboriginal community. He had contact with both proponents and antagonists of the Black Wars. Employing the methodology of documentary archival research, I investigated the historical background to the experiences of the Glovers, where I examined the issues of land grants, convict labour, the gender spike, and the Black Wars. This thesis includes an appraisal of the perseverance of the Glovers during the prolonged economic depression in the decade of the 1840s in Van Diemen’s Land, with John Glover Senior dying in 1849. Several changes introduced in 1840, including increased convict transportation to Van Diemen’s Land and a change in convict policy to the Probation system, led to hardship in the community. The history of the 1840s decade in Van Diemen’s Land has been relatively neglected. It had, however, been a decade of struggle until the economic recovery in the 1850s. John Glover’s artwork reflected his attitude towards his new home at Patterdale. He had been comfortable in this landscape and had developed a sense of belonging. His paintings, with their wide horizons and being flooded with sunlight, were unmistakably Australian. While his paintings had not been valued during his lifetime, they are now being appreciated for their skilful depiction of early colonial Australia.
- Description: Masters by Research
- Authors: Hodson, Susan
- Date: 2023
- Type: Text , Thesis , Masters
- Full Text:
- Description: This thesis explores the experiences of the members of the Glover family, who migrated to Van Diemen’s Land in two parties. The first party consisted of the three sons of John Glover, the colonial painter (one accompanied by an English wife), who arrived in 1829; the second party, which included John Glover himself, arrived in 1831. This thesis explores the Glovers’ attempts to begin new lives as farmers after receiving free land grants from the colonial government, employing convict servants assigned to them. The Glover family members were witnesses to the late stages of the Black Wars. John Glover Senior’s arrival was after the Black Line offensive in 1830, but he sought out members of the Tasmanian Aboriginal community. He had contact with both proponents and antagonists of the Black Wars. Employing the methodology of documentary archival research, I investigated the historical background to the experiences of the Glovers, where I examined the issues of land grants, convict labour, the gender spike, and the Black Wars. This thesis includes an appraisal of the perseverance of the Glovers during the prolonged economic depression in the decade of the 1840s in Van Diemen’s Land, with John Glover Senior dying in 1849. Several changes introduced in 1840, including increased convict transportation to Van Diemen’s Land and a change in convict policy to the Probation system, led to hardship in the community. The history of the 1840s decade in Van Diemen’s Land has been relatively neglected. It had, however, been a decade of struggle until the economic recovery in the 1850s. John Glover’s artwork reflected his attitude towards his new home at Patterdale. He had been comfortable in this landscape and had developed a sense of belonging. His paintings, with their wide horizons and being flooded with sunlight, were unmistakably Australian. While his paintings had not been valued during his lifetime, they are now being appreciated for their skilful depiction of early colonial Australia.
- Description: Masters by Research
Tropical cyclone prediction for the Solomon Islands region
- Authors: Haruhiru, Alick
- Date: 2023
- Type: Text , Thesis , PhD
- Full Text:
- Description: Tropical cyclones (TCs) are among the costliest natural disasters impacting the Solomon Islands in the southwest Pacific due to its high vulnerability and low adaptive capacity to the hazard. Strong winds coupled with heavy rainfall often have devastating consequences on life and property. Occurrence of TCs in the Solomon Islands region – defined here as 5°–15°S and 155°–170°E – have large year-to-year variability over the period 1970-2019, ranging from TC numbers as low as zero to up to eight in some years. Geographically, the region spans the spatial phase change of the major climatic driver in the South Pacific, the El Niño Southern Oscillation (ENSO), and so the year-to-year variability of TCs here do not have any defined pattern. This creates a ‘predictability barrier’ for seasonal (and even sub-seasonal) prediction of TCs in the region. To circumvent the issue of TC predictability in the Solomon Islands region, I first objectively defined the total observed TCs into three specific clusters. Cluster-specific TCs showed improved patterns of variability with respect to natural modes of climate variability such as ENSO, the Madden Julian Oscillations (MJO) and Interdecadal Pacific Oscillations (IPO). I then developed sophisticated statistical prediction models for TCs in each cluster at seasonal and sub-seasonal timescales using ENSO, the MJO and IPO as main predictors. Overall, the results showed enhanced predictability skills of TCs up to several months in advance compared with methods that are currently being used by the Solomon Islands Meteorological Service. It is anticipated that improved seasonal and sub-seasonal predictions of TCs at various timescales can help disaster management agencies in the Solomon Islands with appropriate plannings and decision-making to lessen risks associated with TC events.
- Description: Doctor of Philosophy
- Authors: Haruhiru, Alick
- Date: 2023
- Type: Text , Thesis , PhD
- Full Text:
- Description: Tropical cyclones (TCs) are among the costliest natural disasters impacting the Solomon Islands in the southwest Pacific due to its high vulnerability and low adaptive capacity to the hazard. Strong winds coupled with heavy rainfall often have devastating consequences on life and property. Occurrence of TCs in the Solomon Islands region – defined here as 5°–15°S and 155°–170°E – have large year-to-year variability over the period 1970-2019, ranging from TC numbers as low as zero to up to eight in some years. Geographically, the region spans the spatial phase change of the major climatic driver in the South Pacific, the El Niño Southern Oscillation (ENSO), and so the year-to-year variability of TCs here do not have any defined pattern. This creates a ‘predictability barrier’ for seasonal (and even sub-seasonal) prediction of TCs in the region. To circumvent the issue of TC predictability in the Solomon Islands region, I first objectively defined the total observed TCs into three specific clusters. Cluster-specific TCs showed improved patterns of variability with respect to natural modes of climate variability such as ENSO, the Madden Julian Oscillations (MJO) and Interdecadal Pacific Oscillations (IPO). I then developed sophisticated statistical prediction models for TCs in each cluster at seasonal and sub-seasonal timescales using ENSO, the MJO and IPO as main predictors. Overall, the results showed enhanced predictability skills of TCs up to several months in advance compared with methods that are currently being used by the Solomon Islands Meteorological Service. It is anticipated that improved seasonal and sub-seasonal predictions of TCs at various timescales can help disaster management agencies in the Solomon Islands with appropriate plannings and decision-making to lessen risks associated with TC events.
- Description: Doctor of Philosophy
Vulnerability modelling and mitigation strategies for hybrid networks
- Authors: Ur-Rehman, Attiq
- Date: 2023
- Type: Text , Thesis , PhD
- Full Text:
- Description: Hybrid networks nowadays consist of traditional IT components, Internet of Things (IoT) and industrial control systems (ICS) nodes with varying characteristics, making them genuinely heterogeneous in nature. Historically evolving from traditional internet-enabled IT servers, hybrid networks allow organisations to strengthen cybersecurity, increase flexibility, improve efficiency, enhance reliability, boost remote connectivity and easy management. Though hybrid networks offer significant benefits from business and operational perspectives, this integration has increased the complexity and security challenges to all connected nodes. The IT servers of these hybrid networks are high-budget devices with tremendous processing power and significant storage capacity. In contrast, IoT nodes are low-cost devices with limited processing power and capacity. In addition, the ICS nodes are programmed for dedicated functions with the least interference. The available cybersecurity solutions for hybrid networks are either for specific node types or address particular weaknesses. Due to these distinct characteristics, these solutions may place other nodes in vulnerable positions. This study addresses this gap by proposing a comprehensive vulnerability modelling and mitigation strategy. This proposed solution equally applies to each node type of hybrid network while considering their unique characteristics. For this purpose, the industry-wide adoption of the Common Vulnerability Scoring System (CVSS) has been extended to embed the distinct characteristics of each node type in a hybrid network. To embed IoT features, the ‘attack vectors’ and ‘attack complexity vectors’ are modified and another metric “human safety index”, is integrated in the ‘Base metric group’ of CVSS. In addition, the ICS related characteristics are included in the ‘Environmental metric group’ of CVSS. This metric group is further enhanced to reflect the node resilience capabilities when evaluating the vulnerability score. The resilience of a node is evaluated by analysing the complex relationship of numerous contributing cyber security factors and practices. The evolved CVSSR-IoT-ICS framework proposed in the thesis measures the given vulnerabilities by adopting the unique dynamics of each node. These vulnerability scores are then mapped in the attack tree to reveal the critical nodes and shortest path to the target node. The mitigating strategy framework suggests the most efficient mitigation strategy to counter vulnerabilities by examining the node’s functionality, its locality, centrality, criticality, cascading impacts, available resources, and performance thresholds. Various case studies were conducted to analyse and evaluate our proposed vulnerability modelling and mitigation strategies on realistic supply chain systems. These analyses and evaluations confirm that the proposed solutions are highly effective for modelling the vulnerabilities while the mitigation strategies reduce the risks in dynamic and resource-constrained environments. The unified vulnerability modelling of hybrid networks minimises ambiguities, reduces complexities and identifies hidden deficiencies. It also improves system reliability and performance of heterogeneous networks while at the same time gaining acceptance for a universal vulnerability modelling framework across the cyber industry. The contributions have been published in reputable journals and conferences.
- Description: Doctor of Philosophy
- Authors: Ur-Rehman, Attiq
- Date: 2023
- Type: Text , Thesis , PhD
- Full Text:
- Description: Hybrid networks nowadays consist of traditional IT components, Internet of Things (IoT) and industrial control systems (ICS) nodes with varying characteristics, making them genuinely heterogeneous in nature. Historically evolving from traditional internet-enabled IT servers, hybrid networks allow organisations to strengthen cybersecurity, increase flexibility, improve efficiency, enhance reliability, boost remote connectivity and easy management. Though hybrid networks offer significant benefits from business and operational perspectives, this integration has increased the complexity and security challenges to all connected nodes. The IT servers of these hybrid networks are high-budget devices with tremendous processing power and significant storage capacity. In contrast, IoT nodes are low-cost devices with limited processing power and capacity. In addition, the ICS nodes are programmed for dedicated functions with the least interference. The available cybersecurity solutions for hybrid networks are either for specific node types or address particular weaknesses. Due to these distinct characteristics, these solutions may place other nodes in vulnerable positions. This study addresses this gap by proposing a comprehensive vulnerability modelling and mitigation strategy. This proposed solution equally applies to each node type of hybrid network while considering their unique characteristics. For this purpose, the industry-wide adoption of the Common Vulnerability Scoring System (CVSS) has been extended to embed the distinct characteristics of each node type in a hybrid network. To embed IoT features, the ‘attack vectors’ and ‘attack complexity vectors’ are modified and another metric “human safety index”, is integrated in the ‘Base metric group’ of CVSS. In addition, the ICS related characteristics are included in the ‘Environmental metric group’ of CVSS. This metric group is further enhanced to reflect the node resilience capabilities when evaluating the vulnerability score. The resilience of a node is evaluated by analysing the complex relationship of numerous contributing cyber security factors and practices. The evolved CVSSR-IoT-ICS framework proposed in the thesis measures the given vulnerabilities by adopting the unique dynamics of each node. These vulnerability scores are then mapped in the attack tree to reveal the critical nodes and shortest path to the target node. The mitigating strategy framework suggests the most efficient mitigation strategy to counter vulnerabilities by examining the node’s functionality, its locality, centrality, criticality, cascading impacts, available resources, and performance thresholds. Various case studies were conducted to analyse and evaluate our proposed vulnerability modelling and mitigation strategies on realistic supply chain systems. These analyses and evaluations confirm that the proposed solutions are highly effective for modelling the vulnerabilities while the mitigation strategies reduce the risks in dynamic and resource-constrained environments. The unified vulnerability modelling of hybrid networks minimises ambiguities, reduces complexities and identifies hidden deficiencies. It also improves system reliability and performance of heterogeneous networks while at the same time gaining acceptance for a universal vulnerability modelling framework across the cyber industry. The contributions have been published in reputable journals and conferences.
- Description: Doctor of Philosophy
Accurate prediction of sewer network flows and assessment of groundwater infiltration volumes in sewer networks
- Authors: Jayasooriya, Mahinda
- Date: 2022
- Type: Text , Thesis , PhD
- Full Text:
- Description: Excessive flows due to inflow and infiltration (I&I) in sewer networks contribute to hydraulically overloaded sanitary sewer networks. Understanding the cause–effect relationships associated with sewer network flow generation and accurate quantification of excessive flow volumes entering sewer networks is crucial to developing solutions to resolve this issue. A systematic literature review found a gap in understanding the cause–effect relationships of I&I and no universally accepted method for I&I estimation. This research used three years of data from an Australian sewer catchment in Ballarat, Victoria, as a case study to enhance understanding of the network flow generation process. The aims of this research were to accurately predict sewer network flows, reliably separate the groundwater infiltration (GWI) volume of sewer network flow, improve understanding of associated processes and identify the influential parameters that impact sewer network flow. This research used three methods to achieve these aims. First, commercially available software was used to develop and calibrate a sewer network model to predict flows with data from the case study catchment. The best practice guidelines available in Australia were used to calibrate the model, and a new method was introduced to separate the sewer network flow components. Second, two classical hydrology applications, the recursive filter and the flow duration curve (FDC) methods, were used to separate the GWI component of the total sewer network flow and understand the performance of the sewer catchments. Third, an artificial neural network (ANN) model was developed to predict sewer network flow. Parameters known to influence sewer flows were incrementally introduced to the ANN model to improve performance and understand their relative importance. This study finds that commercially available software can predict total sewer network flows with reasonable accuracy using the Wallingford or triangular hydrograph (RTK) hydrological implementation methods. However, the software cannot replicate the dynamic nature of the complex I&I processes that occur over time or reliably separate the sewer network flow components. A key finding from this study is that commercially available software has clear limitations in separating sewer network flow components. Recursive filter and FDC methods can be successfully used as standalone techniques to calculate the GWI volume. These methods have further value in comparing the I&I between catchments to determine flow characteristics and are straightforward for practising engineers to use. The ANN model predicts sewer flow with a high level of accuracy, and soil moisture is the most critical predictor of the total flow regime. The ANN model is also able to predict the dynamic and complex nature of I&I into sewer networks. More research is needed to achieve effective and reliable separation of individual components in an overall sewer flow regime. ANN and other emerging machine learning techniques show much potential to effectively predict sewer flows across a range of sewer network and catchment characteristics.
- Description: Doctor of Philosophy
- Authors: Jayasooriya, Mahinda
- Date: 2022
- Type: Text , Thesis , PhD
- Full Text:
- Description: Excessive flows due to inflow and infiltration (I&I) in sewer networks contribute to hydraulically overloaded sanitary sewer networks. Understanding the cause–effect relationships associated with sewer network flow generation and accurate quantification of excessive flow volumes entering sewer networks is crucial to developing solutions to resolve this issue. A systematic literature review found a gap in understanding the cause–effect relationships of I&I and no universally accepted method for I&I estimation. This research used three years of data from an Australian sewer catchment in Ballarat, Victoria, as a case study to enhance understanding of the network flow generation process. The aims of this research were to accurately predict sewer network flows, reliably separate the groundwater infiltration (GWI) volume of sewer network flow, improve understanding of associated processes and identify the influential parameters that impact sewer network flow. This research used three methods to achieve these aims. First, commercially available software was used to develop and calibrate a sewer network model to predict flows with data from the case study catchment. The best practice guidelines available in Australia were used to calibrate the model, and a new method was introduced to separate the sewer network flow components. Second, two classical hydrology applications, the recursive filter and the flow duration curve (FDC) methods, were used to separate the GWI component of the total sewer network flow and understand the performance of the sewer catchments. Third, an artificial neural network (ANN) model was developed to predict sewer network flow. Parameters known to influence sewer flows were incrementally introduced to the ANN model to improve performance and understand their relative importance. This study finds that commercially available software can predict total sewer network flows with reasonable accuracy using the Wallingford or triangular hydrograph (RTK) hydrological implementation methods. However, the software cannot replicate the dynamic nature of the complex I&I processes that occur over time or reliably separate the sewer network flow components. A key finding from this study is that commercially available software has clear limitations in separating sewer network flow components. Recursive filter and FDC methods can be successfully used as standalone techniques to calculate the GWI volume. These methods have further value in comparing the I&I between catchments to determine flow characteristics and are straightforward for practising engineers to use. The ANN model predicts sewer flow with a high level of accuracy, and soil moisture is the most critical predictor of the total flow regime. The ANN model is also able to predict the dynamic and complex nature of I&I into sewer networks. More research is needed to achieve effective and reliable separation of individual components in an overall sewer flow regime. ANN and other emerging machine learning techniques show much potential to effectively predict sewer flows across a range of sewer network and catchment characteristics.
- Description: Doctor of Philosophy
Adapting port cluster theory to contextualise the remarkable rise of the gold rushes port of Melbourne: 1851–1861
- Authors: Taylor, Peter
- Date: 2022
- Type: Text , Thesis , PhD
- Full Text:
- Description: The research question that forms the basis of this thesis asks how and what drove the port of Melbourne to advance 30–50 years growth in less than ten during the 1850s gold era. To answer this question this thesis modifies and tests a new methodological approach to read the port’s growth driven by a close reading and evaluation of port cluster theory. Developed in the early 2000s the theory synthesises elements that constitute a port and operations through a wide range of components and activities. Recognising that a twenty-first-century port is not the same as a mid-nineteenth-century port, through advances brought on by a wide range of modern technologies, the theory has been historicised to dismantle the 1851–1861 gold era port of Melbourne to recognise its parts and how it was built. One of the tools to be enhanced and expanded for this is the cluster table of components and activities, providing specifics for activities undertaken at a mid-nineteenth-century port. A key constituent this propels the research forward when applied at Melbourne’s four ports of central Melbourne, Sandridge (Port Melbourne), Williamstown, Footscray and the Saltwater (Maribyrnong) River (combined). The argument is made that the ports evolved to be a port cluster reinforced by the exploration of specific themes of defence, security, river punts, entrepreneurs, ballast trade, quarrying, railways, noxious industries, shipwreck salvage, shipbuilding, ship repairs, tourism and wharf construction as topics. This thesis then uses the evidence gained to claim that the port did indeed evolve into a cluster port by 1861. The wider implication of this research is that a new framework exists for understanding the complexities of a mid-nineteenth-century port and how this can be done in a systematic way. For this methodology to demonstrate utility outside the port of Melbourne, requires further testing at sites within Australia, and worldwide, for confirmation of universality.
- Description: Doctor of Philosophy
- Authors: Taylor, Peter
- Date: 2022
- Type: Text , Thesis , PhD
- Full Text:
- Description: The research question that forms the basis of this thesis asks how and what drove the port of Melbourne to advance 30–50 years growth in less than ten during the 1850s gold era. To answer this question this thesis modifies and tests a new methodological approach to read the port’s growth driven by a close reading and evaluation of port cluster theory. Developed in the early 2000s the theory synthesises elements that constitute a port and operations through a wide range of components and activities. Recognising that a twenty-first-century port is not the same as a mid-nineteenth-century port, through advances brought on by a wide range of modern technologies, the theory has been historicised to dismantle the 1851–1861 gold era port of Melbourne to recognise its parts and how it was built. One of the tools to be enhanced and expanded for this is the cluster table of components and activities, providing specifics for activities undertaken at a mid-nineteenth-century port. A key constituent this propels the research forward when applied at Melbourne’s four ports of central Melbourne, Sandridge (Port Melbourne), Williamstown, Footscray and the Saltwater (Maribyrnong) River (combined). The argument is made that the ports evolved to be a port cluster reinforced by the exploration of specific themes of defence, security, river punts, entrepreneurs, ballast trade, quarrying, railways, noxious industries, shipwreck salvage, shipbuilding, ship repairs, tourism and wharf construction as topics. This thesis then uses the evidence gained to claim that the port did indeed evolve into a cluster port by 1861. The wider implication of this research is that a new framework exists for understanding the complexities of a mid-nineteenth-century port and how this can be done in a systematic way. For this methodology to demonstrate utility outside the port of Melbourne, requires further testing at sites within Australia, and worldwide, for confirmation of universality.
- Description: Doctor of Philosophy
An evaluation of the effectiveness of a consumer-led educational program about stigma in mental illness and recovery attitudes among Mental Health Nurses
- Authors: Sreeram, Anju
- Date: 2022
- Type: Text , Thesis , PhD
- Full Text:
- Description: Fear, frustration and myths about mental illness engenders negative attitudes towards mental illness. Such negative attitudes impede the recovery of people diagnosed with mental illness. Despite an increasing emphasis on stigma and recovery-focused practices, evidence shows prejudicial attitudes towards mental illness and the recovery of people with mental illness among mental health professionals still exist. Anti-stigma initiatives and recovery-oriented interventions can aid in enhancing the attitudes of mental health professionals. Contact-based interventions have the greatest impact on attitudes among the mental health professionals including nurses. However, research regarding initiatives targeting stigma of mental illness and recovery attitudes among Mental Health Nurses working in the acute inpatient psychiatric units is limited. Therefore, the aim of the current study was to evaluate the effectiveness of a consumer-led education package on stigma about mental illness and recovery attitudes of Mental Health Nurses. A sequential explanatory mixed-method, with a pre-test and post-test design was used to evaluate the effect of consumer-led education. This research involved three phases. In the first phase, the study explored Mental Health Nurses' attitudes towards mental illness and recovery using surveys and non-participant observation. The second phase focused on the co-development and co-implementation of a consumer-led education package. The effectiveness of the intervention was evaluated using immediate post-test assessment and again three months later. The final phase focused on exploring the results obtained in the first and second phases of the study through an in-depth interview.
- Description: Doctor of Philosophy
- Authors: Sreeram, Anju
- Date: 2022
- Type: Text , Thesis , PhD
- Full Text:
- Description: Fear, frustration and myths about mental illness engenders negative attitudes towards mental illness. Such negative attitudes impede the recovery of people diagnosed with mental illness. Despite an increasing emphasis on stigma and recovery-focused practices, evidence shows prejudicial attitudes towards mental illness and the recovery of people with mental illness among mental health professionals still exist. Anti-stigma initiatives and recovery-oriented interventions can aid in enhancing the attitudes of mental health professionals. Contact-based interventions have the greatest impact on attitudes among the mental health professionals including nurses. However, research regarding initiatives targeting stigma of mental illness and recovery attitudes among Mental Health Nurses working in the acute inpatient psychiatric units is limited. Therefore, the aim of the current study was to evaluate the effectiveness of a consumer-led education package on stigma about mental illness and recovery attitudes of Mental Health Nurses. A sequential explanatory mixed-method, with a pre-test and post-test design was used to evaluate the effect of consumer-led education. This research involved three phases. In the first phase, the study explored Mental Health Nurses' attitudes towards mental illness and recovery using surveys and non-participant observation. The second phase focused on the co-development and co-implementation of a consumer-led education package. The effectiveness of the intervention was evaluated using immediate post-test assessment and again three months later. The final phase focused on exploring the results obtained in the first and second phases of the study through an in-depth interview.
- Description: Doctor of Philosophy
An investigation of heat stress epidemiology, prevention guidelines, and sporting environment
- Authors: Gonsalves, Marlon
- Date: 2022
- Type: Text , Thesis , PhD
- Full Text:
- Description: As temperatures rise, the frequency of heatwaves, extreme summer heat and less night-time cooling increases. An uncontrolled increase in heat production affects performance and subsequently affects the health of the athlete resulting in exertional heat illness (EHI). EHI is a result of an uncontrollable rise in core body temperature arising from a thermoregulatory response. With rising temperatures, the risk of EHI when exercising or participating in sport increases. However, assessing the risk of EHI is contingent on accurate epidemiological data and addressing the risk of EHI is reliant on effective evidence-based interventions. This thesis assessed the risk of EHI through four interlinked studies: (ⅰ) an analysis of heat-related sports and leisure hospitalisations and emergency department presentations to determine trends in incidence rates and compare them with meteorological trends; (ⅱ) a document analysis of all sports and leisure activity heat-related injury prevention resources in Australia to develop an understanding of the content within those resources; (ⅲ) an investigation of surface temperatures of commonly used artificial sports surfaces to assess the risk posed by such surfaces and measure the differences in microclimates; and, (ⅳ) an assessment of the concordance of meteorological data of multiple artificial sports surfaces with meteorological data from the nearest Bureau of Meteorology (BOM) weather station and a local City of Ballarat (COB) environmental monitoring system (EMS). A total of 1055 heat injury hospitalisations and emergency department (ED) presentations were recorded between July 2008 and June 2018, which included 171 sport-related hospitalisations,139 ED presentations, 83 leisure-related hospitalisations and 662 ED presentations. There were significant correlations between ED presentations for heat-related sports injuries and mean, minimum and maximum temperature, mean and maximum temperature anomaly, summer maximum temperature, and summer maximum temperature anomaly. Three overarching categories emerged through the document analysis process: preventive strategies (n=299, 63.9%), risk factors (n=94, 20.1%), and treatment (n=75, 16.0%). Activity modification, which included information on rescheduling games and extra breaks, was the most common intervention. Cricket, soccer, swimming, and triathlon had the most complete set of heat resources. During the 2020–2021 summer period a total of 1245 measurements were recorded across five artificial sports surfaces: athletics, hockey, lawn bowls, soccer, tennis. The lawn bowls turf was the hottest surface with a mean surface temperature of 54.43 (± 13.46) °C. An increase in surface temperature corresponded to an increase in air temperature, wet bulb temperature and a decrease in relative humidity but the effect varied across the five surfaces. An increase in solar radiation and air temperature also corresponded to an increase in surface temperature. On all five surfaces measured, the BOM air temperatures were the lowest, followed by the on-site air temperatures and then the COB air temperatures on all surfaces. The highest Wet Bulb Globe Temperature (WBGT) measurements of 24.38 (± 2.39) °C were recorded by the COB sensor, while the lowest WBGT measurements 20.76 (± 1.99) °C were recorded by the BOM. There was a statistically significant difference in the WBGT categorisation between on-site estimate measurements and BOM measurements, p <0.001. The incidence of heat-related hospitalisations and ED presentations provides a baseline from which heat-related guidelines and interventions can be developed, evaluated, and modified. Heat resources considered in the document analysis suggest EHI is preventable if appropriate precautions are implemented. With a focus on preventing EHI, heat resources mainly provided recommendations on modifying activities and reducing exposure to extreme conditions. These results imply the EHI risk posed by artificial sport surfaces are not uniform and safety polices should be updated to reflect the link between air temperature and surface temperature. Understanding how surface temperature is influenced by air temperature, solar radiation and cloud cover allows for more accurate predictions of playing conditions on these artificial sport surfaces. Differences were observed between the individual meteorological measurements, the WBGT measurements and the heat stress categorisation. Overall, a significant discord existed for both individual meteorological variables and WBGT modelled from multiple sources of available data. The findings from this thesis have implications for athlete welfare and strengthening future interventions. Overall, this doctoral research project quantifies the scale of heat-related injuries, reviews the policies to address these heat-related injuries and provides new knowledge on the risk posed by artificial sports surfaces.
- Description: Doctor of Philosophy
- Description: As temperatures rise, the frequency of heatwaves, extreme summer heat and less night-time cooling increases. An uncontrolled increase in heat production affects performance and subsequently affects the health of the athlete resulting in exertional heat illness (EHI). EHI is a result of an uncontrollable rise in core body temperature arising from a thermoregulatory response. With rising temperatures, the risk of EHI when exercising or participating in sport increases. However, assessing the risk of EHI is contingent on accurate epidemiological data and addressing the risk of EHI is reliant on effective evidence-based interventions. This thesis assessed the risk of EHI through four interlinked studies: (
- Authors: Gonsalves, Marlon
- Date: 2022
- Type: Text , Thesis , PhD
- Full Text:
- Description: As temperatures rise, the frequency of heatwaves, extreme summer heat and less night-time cooling increases. An uncontrolled increase in heat production affects performance and subsequently affects the health of the athlete resulting in exertional heat illness (EHI). EHI is a result of an uncontrollable rise in core body temperature arising from a thermoregulatory response. With rising temperatures, the risk of EHI when exercising or participating in sport increases. However, assessing the risk of EHI is contingent on accurate epidemiological data and addressing the risk of EHI is reliant on effective evidence-based interventions. This thesis assessed the risk of EHI through four interlinked studies: (ⅰ) an analysis of heat-related sports and leisure hospitalisations and emergency department presentations to determine trends in incidence rates and compare them with meteorological trends; (ⅱ) a document analysis of all sports and leisure activity heat-related injury prevention resources in Australia to develop an understanding of the content within those resources; (ⅲ) an investigation of surface temperatures of commonly used artificial sports surfaces to assess the risk posed by such surfaces and measure the differences in microclimates; and, (ⅳ) an assessment of the concordance of meteorological data of multiple artificial sports surfaces with meteorological data from the nearest Bureau of Meteorology (BOM) weather station and a local City of Ballarat (COB) environmental monitoring system (EMS). A total of 1055 heat injury hospitalisations and emergency department (ED) presentations were recorded between July 2008 and June 2018, which included 171 sport-related hospitalisations,139 ED presentations, 83 leisure-related hospitalisations and 662 ED presentations. There were significant correlations between ED presentations for heat-related sports injuries and mean, minimum and maximum temperature, mean and maximum temperature anomaly, summer maximum temperature, and summer maximum temperature anomaly. Three overarching categories emerged through the document analysis process: preventive strategies (n=299, 63.9%), risk factors (n=94, 20.1%), and treatment (n=75, 16.0%). Activity modification, which included information on rescheduling games and extra breaks, was the most common intervention. Cricket, soccer, swimming, and triathlon had the most complete set of heat resources. During the 2020–2021 summer period a total of 1245 measurements were recorded across five artificial sports surfaces: athletics, hockey, lawn bowls, soccer, tennis. The lawn bowls turf was the hottest surface with a mean surface temperature of 54.43 (± 13.46) °C. An increase in surface temperature corresponded to an increase in air temperature, wet bulb temperature and a decrease in relative humidity but the effect varied across the five surfaces. An increase in solar radiation and air temperature also corresponded to an increase in surface temperature. On all five surfaces measured, the BOM air temperatures were the lowest, followed by the on-site air temperatures and then the COB air temperatures on all surfaces. The highest Wet Bulb Globe Temperature (WBGT) measurements of 24.38 (± 2.39) °C were recorded by the COB sensor, while the lowest WBGT measurements 20.76 (± 1.99) °C were recorded by the BOM. There was a statistically significant difference in the WBGT categorisation between on-site estimate measurements and BOM measurements, p <0.001. The incidence of heat-related hospitalisations and ED presentations provides a baseline from which heat-related guidelines and interventions can be developed, evaluated, and modified. Heat resources considered in the document analysis suggest EHI is preventable if appropriate precautions are implemented. With a focus on preventing EHI, heat resources mainly provided recommendations on modifying activities and reducing exposure to extreme conditions. These results imply the EHI risk posed by artificial sport surfaces are not uniform and safety polices should be updated to reflect the link between air temperature and surface temperature. Understanding how surface temperature is influenced by air temperature, solar radiation and cloud cover allows for more accurate predictions of playing conditions on these artificial sport surfaces. Differences were observed between the individual meteorological measurements, the WBGT measurements and the heat stress categorisation. Overall, a significant discord existed for both individual meteorological variables and WBGT modelled from multiple sources of available data. The findings from this thesis have implications for athlete welfare and strengthening future interventions. Overall, this doctoral research project quantifies the scale of heat-related injuries, reviews the policies to address these heat-related injuries and provides new knowledge on the risk posed by artificial sports surfaces.
- Description: Doctor of Philosophy
- Description: As temperatures rise, the frequency of heatwaves, extreme summer heat and less night-time cooling increases. An uncontrolled increase in heat production affects performance and subsequently affects the health of the athlete resulting in exertional heat illness (EHI). EHI is a result of an uncontrollable rise in core body temperature arising from a thermoregulatory response. With rising temperatures, the risk of EHI when exercising or participating in sport increases. However, assessing the risk of EHI is contingent on accurate epidemiological data and addressing the risk of EHI is reliant on effective evidence-based interventions. This thesis assessed the risk of EHI through four interlinked studies: (
Are nurse academics technology ready? A mixed methods study of Australian nurse academics’ attitudes to technologies in teaching
- Authors: Browning, Mark
- Date: 2022
- Type: Text , Thesis , PhD
- Full Text:
- Description: Technology use in higher education teaching has become widespread and ubiquitous, affecting many areas of teaching and learning (Bond et al., 2020). Nurse education has been impacted by this shift with increasing use of technologies in the classroom (Koch, 2014). Although there has been a large research focus relating to students’ elearning, there has been less focus on the academic and their elearning role, in particular, how academic attitudes influence technology use in teaching (Drysdale et al., 2013; Martin, Polly, et al., 2020). The aim of this study was to explore nurse academics’ attitudes to technology and the influence attitude has on their use of technologies in teaching. There were three objectives: 1) To investigate nurse academics’ attitudes to technology through the Technology Readiness Index 2.0 (TRI 2). 2) To develop an understanding of how and why nurse academics engage with technology through individual interviews. 3) To integrate the quantitative (Objective 1) and qualitative (Objective 2) findings in order to gain a holistic understanding of academics’ use of technologies in teaching. A mixed methods sequential explanatory design consisting of two phases was used to address the aim. The first phase was a survey based on a previously validated, 16 item questionnaire, the Technology Readiness Index 2.0 (TRI 2), which was distributed to Australian nurse academics. The second phase included semi-structured individual interviews focussed on academics’ use and attitudes to technology, incorporating elements from the survey. The Technology Readiness Index 2.0 (TRI 2) was used in this study for the first time with nurse academics. The phase one findings indicate that nurse academics were technology ready, had higher overall TRI mean score than the general population (Parasuraman & Colby, 2015), but with similar outcomes to previous nurse academic research. Of note was that TRI was significantly associated with frequency of technology use, number of technologies used and self-rated confidence to use technology. The findings revealed three main Technology Readiness groups, representing three attitudes to technology in teaching: Explorers, Sceptics and Hesitators. Explorers were found to be innovative, positive and confident in their use of technology; Sceptics showed aversion to technology, were cautious when considering the impact on pedagogy and concerned about the impact on interpersonal skills; Hesitators showed preference for traditional teaching and distrust and were anxious about technology use. Overall, attitudes were found to be complex, based on experience and the potential impact technology may have on nursing students. The groups identified in this thesis explain behaviours and enable institutes to support academics in their engagement with technology. Recommendations include flexible training to meet the needs of academics, the use of simple and reliable technology across TR groups and adjusting workloads to account for the time-consuming nature of technology. There is also a need for academics to consider their attitudes to technology and the impact this may have on their teaching. This thesis demonstrates that technology engagement is not a binary choice but a complex process based on attitudes and other factors.
- Description: Doctor of Philosophy
- Authors: Browning, Mark
- Date: 2022
- Type: Text , Thesis , PhD
- Full Text:
- Description: Technology use in higher education teaching has become widespread and ubiquitous, affecting many areas of teaching and learning (Bond et al., 2020). Nurse education has been impacted by this shift with increasing use of technologies in the classroom (Koch, 2014). Although there has been a large research focus relating to students’ elearning, there has been less focus on the academic and their elearning role, in particular, how academic attitudes influence technology use in teaching (Drysdale et al., 2013; Martin, Polly, et al., 2020). The aim of this study was to explore nurse academics’ attitudes to technology and the influence attitude has on their use of technologies in teaching. There were three objectives: 1) To investigate nurse academics’ attitudes to technology through the Technology Readiness Index 2.0 (TRI 2). 2) To develop an understanding of how and why nurse academics engage with technology through individual interviews. 3) To integrate the quantitative (Objective 1) and qualitative (Objective 2) findings in order to gain a holistic understanding of academics’ use of technologies in teaching. A mixed methods sequential explanatory design consisting of two phases was used to address the aim. The first phase was a survey based on a previously validated, 16 item questionnaire, the Technology Readiness Index 2.0 (TRI 2), which was distributed to Australian nurse academics. The second phase included semi-structured individual interviews focussed on academics’ use and attitudes to technology, incorporating elements from the survey. The Technology Readiness Index 2.0 (TRI 2) was used in this study for the first time with nurse academics. The phase one findings indicate that nurse academics were technology ready, had higher overall TRI mean score than the general population (Parasuraman & Colby, 2015), but with similar outcomes to previous nurse academic research. Of note was that TRI was significantly associated with frequency of technology use, number of technologies used and self-rated confidence to use technology. The findings revealed three main Technology Readiness groups, representing three attitudes to technology in teaching: Explorers, Sceptics and Hesitators. Explorers were found to be innovative, positive and confident in their use of technology; Sceptics showed aversion to technology, were cautious when considering the impact on pedagogy and concerned about the impact on interpersonal skills; Hesitators showed preference for traditional teaching and distrust and were anxious about technology use. Overall, attitudes were found to be complex, based on experience and the potential impact technology may have on nursing students. The groups identified in this thesis explain behaviours and enable institutes to support academics in their engagement with technology. Recommendations include flexible training to meet the needs of academics, the use of simple and reliable technology across TR groups and adjusting workloads to account for the time-consuming nature of technology. There is also a need for academics to consider their attitudes to technology and the impact this may have on their teaching. This thesis demonstrates that technology engagement is not a binary choice but a complex process based on attitudes and other factors.
- Description: Doctor of Philosophy
Continuing professional development of allied health professionals : A regional study
- Authors: Schenk, Peter
- Date: 2022
- Type: Text , Thesis , PhD
- Full Text:
- Description: Background The Australian healthcare system is challenged by an ageing population and lifestyle risk factors that disproportionately affect people in regional (non-metropolitan) geographic regions. In addition, the allied health professionals who work in knowledge-intensive occupations in regional Victoria face barriers regarding profession related learning. Allied health professionals provide diagnostic and therapeutic patient care services, and within these professions, healthcare diagnoses and treatments are expected by society and government to be founded on scientific evidence. Therefore, remaining up-to-date with rapidly developing knowledge requires continuing professional development (CPD). Purpose This study explores pertinent issues affecting the CPD programs of allied health professionals and the interaction with regional Victorian public hospitals’ knowledge management (KM) approaches. Consequently, the study identifies opportunities for improving profession related learning, enhancing evidence-based practice and the efficacy of diagnoses and treatments. The proposed outcome of this study addresses perceived inadequacies of allied health professionals’ CPD and its contribution to medical errors. Furthermore, greater availability and effectiveness of profession related learning in these occupations should improve patients’ health outcomes. The study described in this thesis answers the primary research question: 1) What factors significantly influence the availability and effectiveness of continuing professional development (CPD) for allied health professionals (radiographers, sonographers and physiotherapists)? In addition, it also answers the secondary research question: 2) How can the findings of this research be represented to improve the CPD of allied health professionals and knowledge management (KM) in regional Victorian public hospitals? Methodology This study explores subjective phenomena involving human behaviour; therefore, the philosophical foundations of this study are post-positivist, with knowledge claims of interpretivist research. This research employs multi-site embedded case studies, defined as empirical enquiries investigating contemporary phenomena in real-world contexts. Therefore, they are suitable for this investigation, where participant experiences and contexts are equally important. Case selection in this study expresses regionalism through remoteness classifications of inner and outer regional areas, and hospital size comparing small/medium and large/referral regional hospitals. The 37 respondents to semi-structured interviews include hospital managers and purposefully selected allied health professionals (radiographers, sonographers and physiotherapists). The interviews were conducted from March to June 2017, with thematic analysis completed thereafter. Results Respondents in this study propose a holistic concept of CPD, encompassing all profession related learning opportunities, including learning from CPD activities and practice-based learning. Furthermore, the allied health professionals had various motivations for undertaking CPD, including maintaining and enhancing profession related knowledge, personal interest, supporting hospital needs, and meeting mandatory requirements. In addition, they discussed the factors that influenced their CPD planning, including their preference for formal face-to-face CPD activities, the availability of hospital-provided or local CPD activities, online learning, and overcoming barriers of their regional location. Finally, the factors influencing allied health professionals’ CPD include their planning of CPD programs, the influence of hospitals’ KM, and the competencies they consider necessary for good practice. Conclusion The thematic analysis in this study represents this study’s findings as a normative conceptual model in answer to the secondary research question. The Model of Allied Health Professionals’ CPD (described in section 6.7) proffers a heuristic framework depicting reflective feedback and the process of deliberative planning of CPD. Extrapolating knowledge from the literature and respondents’ experiences with CPD, the model’s elements include interrelationships between allied health professionals’ CPD planning and activities, hospitals’ approaches to KM, and informal workplace learning. Furthermore, the combined outcomes of CPD and KM contribute to allied health professionals’ competencies and expertise, presumably contributing to improving patients’ healthcare, including diagnoses and treatments.
- Description: Doctor of Philosophy
- Authors: Schenk, Peter
- Date: 2022
- Type: Text , Thesis , PhD
- Full Text:
- Description: Background The Australian healthcare system is challenged by an ageing population and lifestyle risk factors that disproportionately affect people in regional (non-metropolitan) geographic regions. In addition, the allied health professionals who work in knowledge-intensive occupations in regional Victoria face barriers regarding profession related learning. Allied health professionals provide diagnostic and therapeutic patient care services, and within these professions, healthcare diagnoses and treatments are expected by society and government to be founded on scientific evidence. Therefore, remaining up-to-date with rapidly developing knowledge requires continuing professional development (CPD). Purpose This study explores pertinent issues affecting the CPD programs of allied health professionals and the interaction with regional Victorian public hospitals’ knowledge management (KM) approaches. Consequently, the study identifies opportunities for improving profession related learning, enhancing evidence-based practice and the efficacy of diagnoses and treatments. The proposed outcome of this study addresses perceived inadequacies of allied health professionals’ CPD and its contribution to medical errors. Furthermore, greater availability and effectiveness of profession related learning in these occupations should improve patients’ health outcomes. The study described in this thesis answers the primary research question: 1) What factors significantly influence the availability and effectiveness of continuing professional development (CPD) for allied health professionals (radiographers, sonographers and physiotherapists)? In addition, it also answers the secondary research question: 2) How can the findings of this research be represented to improve the CPD of allied health professionals and knowledge management (KM) in regional Victorian public hospitals? Methodology This study explores subjective phenomena involving human behaviour; therefore, the philosophical foundations of this study are post-positivist, with knowledge claims of interpretivist research. This research employs multi-site embedded case studies, defined as empirical enquiries investigating contemporary phenomena in real-world contexts. Therefore, they are suitable for this investigation, where participant experiences and contexts are equally important. Case selection in this study expresses regionalism through remoteness classifications of inner and outer regional areas, and hospital size comparing small/medium and large/referral regional hospitals. The 37 respondents to semi-structured interviews include hospital managers and purposefully selected allied health professionals (radiographers, sonographers and physiotherapists). The interviews were conducted from March to June 2017, with thematic analysis completed thereafter. Results Respondents in this study propose a holistic concept of CPD, encompassing all profession related learning opportunities, including learning from CPD activities and practice-based learning. Furthermore, the allied health professionals had various motivations for undertaking CPD, including maintaining and enhancing profession related knowledge, personal interest, supporting hospital needs, and meeting mandatory requirements. In addition, they discussed the factors that influenced their CPD planning, including their preference for formal face-to-face CPD activities, the availability of hospital-provided or local CPD activities, online learning, and overcoming barriers of their regional location. Finally, the factors influencing allied health professionals’ CPD include their planning of CPD programs, the influence of hospitals’ KM, and the competencies they consider necessary for good practice. Conclusion The thematic analysis in this study represents this study’s findings as a normative conceptual model in answer to the secondary research question. The Model of Allied Health Professionals’ CPD (described in section 6.7) proffers a heuristic framework depicting reflective feedback and the process of deliberative planning of CPD. Extrapolating knowledge from the literature and respondents’ experiences with CPD, the model’s elements include interrelationships between allied health professionals’ CPD planning and activities, hospitals’ approaches to KM, and informal workplace learning. Furthermore, the combined outcomes of CPD and KM contribute to allied health professionals’ competencies and expertise, presumably contributing to improving patients’ healthcare, including diagnoses and treatments.
- Description: Doctor of Philosophy
Design and optimisation of the limaçon rotary compressor
- Lu, Kui
- Authors: Lu, Kui
- Date: 2022
- Type: Text , Thesis , PhD
- Full Text:
- Description: The limaçon positive displacement machine is characterised by its internal geometry and unique mechanical motion; both based on a mathematical curve known as the limaçon of Pascal. The limaçon technology offers many advantages, such as compact size and double‐acting functionality, and its great potential for fluid processing applications has been proven by a number of patents and innovative designs in engines, expanders, and pumps. However, no commercial application of the limaçon technology in the field of positive displacement compressors has been reported in the literature. This could be attributed to the fact that the potential of the limaçon technology for gas compression has not been established as yet. The process of establishing potential is necessary before funds and resources are dedicated to investing in prototyping and testing. This process entails a considerable amount of modelling, coding and analysis as one must ensure the embodiment is geometrically capable of delivering suction and compression strokes, ports can be arranged to support the workings of these strokes, a number of measurable parameters can be identified as impacting compressor performance and it is possible to calculate a set of parameters which optimise this performance. To achieve this objective, a comprehensive mathematical model of a limaçon machine, implemented as a compressor,was first developed. The model, which is multi‐physical in nature, spans such domains as kinematics, fluid dynamics, characteristics of the port flow, internal leakage due to seal vibration, dynamics of the discharge valve, and thermodynamics. Subsequently, the simulation of the model has been performed to numerically study the operational characteristics of the limaçon compressor and to investigate the effect of various parameters on the compressor performance. It was found that the increase in the operating speed and pressure ratio would lead to negative effects on machine performance, especially on volumetric efficiency. Additionally, the results of simulations indicated that the level of fluid over‐compression is influenced by the characteristics of the discharge valve. To ensure the suitability of limaçon technology for use in positive displacement compressors, a study was undertaken to determine whether such an embodiment lent itself to optimisation efforts. For this purpose, the thorough mathematical model which has been developed to simulate compressor workings was then used for optimisation purposes whereby a Bayesian optimisation procedure was applied. The optimisation procedure was conducted in a two‐stage fashion where the first stage optimises the machine dimensions to meet volumetric requirements specified by the designer; and the second stage focuses on revealing the optimum combination of port geometries that improves machine performance. A numerical illustration was presented to prove the validity of the presented approach, and the results show that considerable improvements in the isentropic and volumetric efficiencies can be attained. Moreover, the optimised design was tested under different operating speeds and pressure ratios to investigate its robustness. It was found that the optimised design can exhibit relatively stable performance when the working conditions vary within a small bandwidth around that used in the optimisation procedure. The limaçon technology has three embodiments, namely the limaçon‐to‐limaçon (L2L), the limaçon‐to‐circular, and the circolimaçon. The circolimaçon embodiment features using circular arcs, rather than limaçon curves, to develop profiles for the rotor and housing. This embodiment simplifies the manufacturing process and reduces the production cost associated with producing a limaçon technology. A feasibility study of the circolimaçon embodiment was conducted by comparing its performance with that of the L2L type device. The machine dimensions and port geometries obtained from the optimisation procedure were used in the comparative study. A nonlinear three‐degree of freedom model was presented to describe the dynamic behaviour of the apex seal during the machine operation. Additionally, the leakage through the seal‐housing gap was formulated by considering the inertia and viscous effects of the flow. The results from the case study suggest that the circolimaçon embodiment exhibits comparable performance to the L2L‐type machine, despite having more significant seal vibrations. Moreover, it was also discovered that the circolimaçon compressor with a small capacity undergoes a lower level of seal dynamics, indicating better machine reliability.
- Description: Doctor of Philosophy
- Authors: Lu, Kui
- Date: 2022
- Type: Text , Thesis , PhD
- Full Text:
- Description: The limaçon positive displacement machine is characterised by its internal geometry and unique mechanical motion; both based on a mathematical curve known as the limaçon of Pascal. The limaçon technology offers many advantages, such as compact size and double‐acting functionality, and its great potential for fluid processing applications has been proven by a number of patents and innovative designs in engines, expanders, and pumps. However, no commercial application of the limaçon technology in the field of positive displacement compressors has been reported in the literature. This could be attributed to the fact that the potential of the limaçon technology for gas compression has not been established as yet. The process of establishing potential is necessary before funds and resources are dedicated to investing in prototyping and testing. This process entails a considerable amount of modelling, coding and analysis as one must ensure the embodiment is geometrically capable of delivering suction and compression strokes, ports can be arranged to support the workings of these strokes, a number of measurable parameters can be identified as impacting compressor performance and it is possible to calculate a set of parameters which optimise this performance. To achieve this objective, a comprehensive mathematical model of a limaçon machine, implemented as a compressor,was first developed. The model, which is multi‐physical in nature, spans such domains as kinematics, fluid dynamics, characteristics of the port flow, internal leakage due to seal vibration, dynamics of the discharge valve, and thermodynamics. Subsequently, the simulation of the model has been performed to numerically study the operational characteristics of the limaçon compressor and to investigate the effect of various parameters on the compressor performance. It was found that the increase in the operating speed and pressure ratio would lead to negative effects on machine performance, especially on volumetric efficiency. Additionally, the results of simulations indicated that the level of fluid over‐compression is influenced by the characteristics of the discharge valve. To ensure the suitability of limaçon technology for use in positive displacement compressors, a study was undertaken to determine whether such an embodiment lent itself to optimisation efforts. For this purpose, the thorough mathematical model which has been developed to simulate compressor workings was then used for optimisation purposes whereby a Bayesian optimisation procedure was applied. The optimisation procedure was conducted in a two‐stage fashion where the first stage optimises the machine dimensions to meet volumetric requirements specified by the designer; and the second stage focuses on revealing the optimum combination of port geometries that improves machine performance. A numerical illustration was presented to prove the validity of the presented approach, and the results show that considerable improvements in the isentropic and volumetric efficiencies can be attained. Moreover, the optimised design was tested under different operating speeds and pressure ratios to investigate its robustness. It was found that the optimised design can exhibit relatively stable performance when the working conditions vary within a small bandwidth around that used in the optimisation procedure. The limaçon technology has three embodiments, namely the limaçon‐to‐limaçon (L2L), the limaçon‐to‐circular, and the circolimaçon. The circolimaçon embodiment features using circular arcs, rather than limaçon curves, to develop profiles for the rotor and housing. This embodiment simplifies the manufacturing process and reduces the production cost associated with producing a limaçon technology. A feasibility study of the circolimaçon embodiment was conducted by comparing its performance with that of the L2L type device. The machine dimensions and port geometries obtained from the optimisation procedure were used in the comparative study. A nonlinear three‐degree of freedom model was presented to describe the dynamic behaviour of the apex seal during the machine operation. Additionally, the leakage through the seal‐housing gap was formulated by considering the inertia and viscous effects of the flow. The results from the case study suggest that the circolimaçon embodiment exhibits comparable performance to the L2L‐type machine, despite having more significant seal vibrations. Moreover, it was also discovered that the circolimaçon compressor with a small capacity undergoes a lower level of seal dynamics, indicating better machine reliability.
- Description: Doctor of Philosophy