Adventures in software engineering : plugging HCI & acessibility gaps with open source solutions
- Authors: Lansley, Alastair
- Date: 2020
- Type: Text , Thesis , PhD
- Full Text:
- Description: There has been a great deal of research undertaken in the field of Human-Computer Interfaces (HCI), input devices, and output modalities in recent years. From touch-based and voice control input mechanisms such as those found on modern smart-devices to the use of touch-free input through video-stream/image analysis (including depth streams and skeletal mapping) and the inclusion of gaze tracking, head tracking, virtual reality and beyond - the availability and variety of these I/O (Input/Output) mechanisms has increased tremendously and progressed both into our living rooms and into our lives in general. With regard to modern desktop computers and videogame consoles, at present many of these technologies are at a relatively immature stage of development - their use often limited to simple adjuncts to the staple input mechanisms of mouse, keyboard, or joystick / joypad inputs. In effect, we have these new input devices - but we're not quite sure how best to use them yet; that is, where their various strengths and weaknesses lie, and how or if they can be used to conveniently and reliably drive or augment applications in our everyday lives. In addition, much of this technology is provided by proprietary hardware and software, providing limited options for customisation or adaptation to better meet the needs of specific users. Therefore, this project investigated the development of open source software solutions to address various aspects of innovative user I/O in a flexible manner. Towards this end, a number of original software applications have been developed which incorporate functionality aimed at enhancing the current state of the art in these areas and making that software freely available for use by any who may find it beneficial.
- Description: Doctor of Philosophy
- Authors: Lansley, Alastair
- Date: 2020
- Type: Text , Thesis , PhD
- Full Text:
- Description: There has been a great deal of research undertaken in the field of Human-Computer Interfaces (HCI), input devices, and output modalities in recent years. From touch-based and voice control input mechanisms such as those found on modern smart-devices to the use of touch-free input through video-stream/image analysis (including depth streams and skeletal mapping) and the inclusion of gaze tracking, head tracking, virtual reality and beyond - the availability and variety of these I/O (Input/Output) mechanisms has increased tremendously and progressed both into our living rooms and into our lives in general. With regard to modern desktop computers and videogame consoles, at present many of these technologies are at a relatively immature stage of development - their use often limited to simple adjuncts to the staple input mechanisms of mouse, keyboard, or joystick / joypad inputs. In effect, we have these new input devices - but we're not quite sure how best to use them yet; that is, where their various strengths and weaknesses lie, and how or if they can be used to conveniently and reliably drive or augment applications in our everyday lives. In addition, much of this technology is provided by proprietary hardware and software, providing limited options for customisation or adaptation to better meet the needs of specific users. Therefore, this project investigated the development of open source software solutions to address various aspects of innovative user I/O in a flexible manner. Towards this end, a number of original software applications have been developed which incorporate functionality aimed at enhancing the current state of the art in these areas and making that software freely available for use by any who may find it beneficial.
- Description: Doctor of Philosophy
Positive attitude change to school - Narrative inquiry into adolescent students' lived experiences
- Authors: Wojtaszek, Sylwia
- Date: 2020
- Type: Text , Thesis , PhD
- Full Text:
- Description: This thesis reports on a qualitative research study that investigated adolescent students‟ experiences of positive attitude change to school. The literature review situates the research of students‟ attitude changes to school within the affective component of the multidimensional construct of student engagement and identifies this field and the phenomenon of positive attitude change to school as underresearched and under-theorised. Narrative inquiry methodology was applied in order to provide a detailed description of students‟ lived experiences and generate knowledge to fill the existing gap of how such an experience manifests itself. Eight students, who self-reported to have experienced positive attitude change to school, shared stories through in-depth semi-structured interviews of how the attitude change came about, who or what influenced it, and what meaning they attached to it in relation to its impact on their engagement and wellbeing. Students‟ attitudes to school are predominantly examined through quantitative research, whereas this study provided a unique and nuanced insight into attitude change based on the qualitative paradigm and a social constructionist view of the experience from the students‟ vantage point. Students‟ narrative accounts are compared and contrasted with each other to identify five resonant threads associated with the experience of positive attitude change to school. Data analysis suggests that positive attitude change to school has a significant impact on student engagement in learning and student wellbeing through its embodiment of perceived positive emotions associated with being at school. It consequently illustrates the relevance of broadening the understanding of such an experience to address the critical issue of disengagement in adolescent students. Key findings indicate that students develop a negative attitude to school when personal problems remain unresolved or have been insufficiently addressed within the school environment; no “helping hand” was there to assist these ambitious students who were struggling to engage in learning due to their experience of negative emotions at school. This research study has revealed that a negative attitude to school does not necessarily equate to a negative attitude to learning. Students‟ perception of the available support, both from the teachers and the services offered at school, is a critical factor in the transformation of their attitudes to school. Further, the students who participated in this study did not themselves feel that they were equipped with the required knowledge and skills to manage their personal problems effectively in order to maintain their engagement in learning. Only after having “hit rock bottom” and having sought help from outside the school environment were the students able to apply a different perspective to their circumstances that was associated with positive attitude change to school. From this research study it can be concluded that a student‟s positive attitude to school is a requirement for successful social and academic outcomes, and it is an educational goal in itself regarding the notion of developing lifelong learners. Personal problems and their impact on student engagement and wellbeing need to be acknowledged and catered for within the school environment. School support services must proactively extend a helping hand to students who have a negative attitude to school. Further, students need to develop selfefficacy regarding their personal wellbeing so that they become confident to act autonomously in solving their situations at school that are characterised by the difficult negative emotions that they are experiencing. Students‟ attitudes to school and the complexity of the multidimensional construct of student engagement need to be considered in the development of initiatives to address adolescent student disengagement and in the development of student wellbeing frameworks.
- Description: Doctor of Philosophy
- Authors: Wojtaszek, Sylwia
- Date: 2020
- Type: Text , Thesis , PhD
- Full Text:
- Description: This thesis reports on a qualitative research study that investigated adolescent students‟ experiences of positive attitude change to school. The literature review situates the research of students‟ attitude changes to school within the affective component of the multidimensional construct of student engagement and identifies this field and the phenomenon of positive attitude change to school as underresearched and under-theorised. Narrative inquiry methodology was applied in order to provide a detailed description of students‟ lived experiences and generate knowledge to fill the existing gap of how such an experience manifests itself. Eight students, who self-reported to have experienced positive attitude change to school, shared stories through in-depth semi-structured interviews of how the attitude change came about, who or what influenced it, and what meaning they attached to it in relation to its impact on their engagement and wellbeing. Students‟ attitudes to school are predominantly examined through quantitative research, whereas this study provided a unique and nuanced insight into attitude change based on the qualitative paradigm and a social constructionist view of the experience from the students‟ vantage point. Students‟ narrative accounts are compared and contrasted with each other to identify five resonant threads associated with the experience of positive attitude change to school. Data analysis suggests that positive attitude change to school has a significant impact on student engagement in learning and student wellbeing through its embodiment of perceived positive emotions associated with being at school. It consequently illustrates the relevance of broadening the understanding of such an experience to address the critical issue of disengagement in adolescent students. Key findings indicate that students develop a negative attitude to school when personal problems remain unresolved or have been insufficiently addressed within the school environment; no “helping hand” was there to assist these ambitious students who were struggling to engage in learning due to their experience of negative emotions at school. This research study has revealed that a negative attitude to school does not necessarily equate to a negative attitude to learning. Students‟ perception of the available support, both from the teachers and the services offered at school, is a critical factor in the transformation of their attitudes to school. Further, the students who participated in this study did not themselves feel that they were equipped with the required knowledge and skills to manage their personal problems effectively in order to maintain their engagement in learning. Only after having “hit rock bottom” and having sought help from outside the school environment were the students able to apply a different perspective to their circumstances that was associated with positive attitude change to school. From this research study it can be concluded that a student‟s positive attitude to school is a requirement for successful social and academic outcomes, and it is an educational goal in itself regarding the notion of developing lifelong learners. Personal problems and their impact on student engagement and wellbeing need to be acknowledged and catered for within the school environment. School support services must proactively extend a helping hand to students who have a negative attitude to school. Further, students need to develop selfefficacy regarding their personal wellbeing so that they become confident to act autonomously in solving their situations at school that are characterised by the difficult negative emotions that they are experiencing. Students‟ attitudes to school and the complexity of the multidimensional construct of student engagement need to be considered in the development of initiatives to address adolescent student disengagement and in the development of student wellbeing frameworks.
- Description: Doctor of Philosophy
An investigation of Surf Life Saving Australia's Junior Development Program for Nippers
- Authors: Higgerson, Amanda
- Date: 2020
- Type: Text , Thesis , Masters
- Full Text:
- Description: The primary aim of Surf Life Saving Australia (SLSA), through their State and Territory bodies is to provide safe coastal environments for Australian beach goers. With over 312 affiliated clubs across Australia, SLSA provides an opportunity for primary school aged children (Nippers) to experience water safety and aquatic education in an open water environment. Nippers in the Under 8-Under 13 years age groups are involved in a participation-based education program known as the Junior Development Program (JDP), which aims to develop skills required for future lifesaving (Giles & Slade, 2012). The overall aim of this research was to identify and explore the barriers and enablers to involvement in SLSA’s JDP from the perspective of the participants, their parents/carers and those involved in the delivery of the program. Utilising a multiphase mixed method design, 341 Nippers from eight surf lifesaving clubs in New South Wales completed a questionnaire and 30 interviews were conducted – 19 with parents/carers from seven of the eight participating lifesaving clubs, and 11 Age Managers from six of the eight clubs. The findings indicated that the Nippers perceived most lifesaving skills were important and were happy/very happy to be learning about safety of themselves and how to assist others in the surf. Most concerns related to unknowns in terms of sea creatures and adverse weather conditions like storms and lightening. Interviewees believed Nipper participation was based on interpersonal and intrapersonal reasons, with socialisation a positive aspect of the program. In line with common fears reported by Nippers, interviewees reported unfavourable environmental conditions, including big surf, cold weather, weed and stingers, as barriers to participation. The findings and opinions from those involved in the JDP provide insights into barriers and enablers to participation in the program, which is intended to provide important guidance for future delivery of the JDP across Australia.
- Description: Masters by Research
- Authors: Higgerson, Amanda
- Date: 2020
- Type: Text , Thesis , Masters
- Full Text:
- Description: The primary aim of Surf Life Saving Australia (SLSA), through their State and Territory bodies is to provide safe coastal environments for Australian beach goers. With over 312 affiliated clubs across Australia, SLSA provides an opportunity for primary school aged children (Nippers) to experience water safety and aquatic education in an open water environment. Nippers in the Under 8-Under 13 years age groups are involved in a participation-based education program known as the Junior Development Program (JDP), which aims to develop skills required for future lifesaving (Giles & Slade, 2012). The overall aim of this research was to identify and explore the barriers and enablers to involvement in SLSA’s JDP from the perspective of the participants, their parents/carers and those involved in the delivery of the program. Utilising a multiphase mixed method design, 341 Nippers from eight surf lifesaving clubs in New South Wales completed a questionnaire and 30 interviews were conducted – 19 with parents/carers from seven of the eight participating lifesaving clubs, and 11 Age Managers from six of the eight clubs. The findings indicated that the Nippers perceived most lifesaving skills were important and were happy/very happy to be learning about safety of themselves and how to assist others in the surf. Most concerns related to unknowns in terms of sea creatures and adverse weather conditions like storms and lightening. Interviewees believed Nipper participation was based on interpersonal and intrapersonal reasons, with socialisation a positive aspect of the program. In line with common fears reported by Nippers, interviewees reported unfavourable environmental conditions, including big surf, cold weather, weed and stingers, as barriers to participation. The findings and opinions from those involved in the JDP provide insights into barriers and enablers to participation in the program, which is intended to provide important guidance for future delivery of the JDP across Australia.
- Description: Masters by Research
A good sheep run. Letters from New South Wales in Scottish newspapers between 1820 and 1850 with potential to influence decisions on emigration
- Authors: Hannaford, Graham
- Date: 2020
- Type: Text , Thesis , PhD
- Full Text:
- Description: The primary aim of this thesis is to contribute to ongoing historical research into migration to and settlement in Australia by Scots. It achieves this by identifying and examining letters sent from the colonies in New South Wales which were printed in historic Scottish newspapers between 1820 and 1850. In examining the material, this thesis argues that the letters had potential to influence emigration decisions by Scots. The study shows some of the ways in which New South Wales was reported in the Scottish press and compares those reports with conditions in Scotland at the time. The comparisons and analyses of the letters, with consideration of their authors and likely readers as well as the newspapers in which they were printed demonstrate that the letters did have potential to influence emigration decisions. Its particular contribution to knowledge arises from demonstrating how mostly private letters which became publicly available through publication in newspapers had potential to influence emigrants’ decisions about moving to Australia. Rather than claiming direct evidence of the publication of particular letters as having influenced emigration, it shows how reporting of conditions in Australia when set into a context of contemporary events and conditions in Scotland had potential to influence decisions. It is grounded in the body of historical research about colonial Australia and sits within this Australian historiographical context. Given the motivations and attractions of Scots to colonial Australia this thesis also engages with techniques and theoretical approaches associated with Scottish diaspora studies, an area of research that often emphasises other Scottish migration patterns to Canada, New Zealand and the USA. When considered together both of these historiographical approaches lend themselves to primary source material analysis and a methodological approach that this doctoral study uses to examine the motivations of Scots who migrated to colonial Australia.
- Description: Doctor of Philosophy
- Authors: Hannaford, Graham
- Date: 2020
- Type: Text , Thesis , PhD
- Full Text:
- Description: The primary aim of this thesis is to contribute to ongoing historical research into migration to and settlement in Australia by Scots. It achieves this by identifying and examining letters sent from the colonies in New South Wales which were printed in historic Scottish newspapers between 1820 and 1850. In examining the material, this thesis argues that the letters had potential to influence emigration decisions by Scots. The study shows some of the ways in which New South Wales was reported in the Scottish press and compares those reports with conditions in Scotland at the time. The comparisons and analyses of the letters, with consideration of their authors and likely readers as well as the newspapers in which they were printed demonstrate that the letters did have potential to influence emigration decisions. Its particular contribution to knowledge arises from demonstrating how mostly private letters which became publicly available through publication in newspapers had potential to influence emigrants’ decisions about moving to Australia. Rather than claiming direct evidence of the publication of particular letters as having influenced emigration, it shows how reporting of conditions in Australia when set into a context of contemporary events and conditions in Scotland had potential to influence decisions. It is grounded in the body of historical research about colonial Australia and sits within this Australian historiographical context. Given the motivations and attractions of Scots to colonial Australia this thesis also engages with techniques and theoretical approaches associated with Scottish diaspora studies, an area of research that often emphasises other Scottish migration patterns to Canada, New Zealand and the USA. When considered together both of these historiographical approaches lend themselves to primary source material analysis and a methodological approach that this doctoral study uses to examine the motivations of Scots who migrated to colonial Australia.
- Description: Doctor of Philosophy
Investigating the configuration of a flight training device for visual flight rules navigation
- Authors: Harvey, William
- Date: 2020
- Type: Text , Thesis , PhD
- Full Text:
- Description: The acquisition of pilot navigational skills utilising visual landmarks is a crucial skill that is required as part of Visual Flight Rules navigation towards obtaining a Private Pilot License. Due to the high cost of pilot training simulators, industry has identified a need for research in efficient utilisation of low-end, low cost personal compute flight simulators to assist in developing pilot skills. Analysis of the effectiveness of the use of such personal computer simulators depend on proper configuration determined by measurable errors to define simulator fidelity. To date, research has shown that the configuration of these simulators appears to have been done in an ad-hoc fashion and not in a scientific fashion. Therefore, the problem that needed to be solved was how to effectively configure such simulators. This thesis research attempted to solve this problem and present the process for effectively configuring a personal computer simulator, or flight training device, capable of successful Visual Flight Rules navigation. The simulator was configurated utilising a process that followed an interpretation of the Design Science research method, and an error correction model to determine the errors in the simulator configuration. This was done by comparing two probability distributions to measure the maximum error variable distance in order to configure a simulator suitable for the acquisition of Visual Flight Rules navigation piloting skills required for obtaining a Private Pilot Licence in Australia. This error identification method was then used to indicate simulator configuration efficiency and fidelity in order to achieve a minimum suitable configuration and setup. Further application of the findings of this research could potentially lead to the configuration of different types of non-aviation simulators, in particular Part-Task-Trainers and other training devices, including Virtual Reality Augmented Reality devices utilising various types of platforms such as Windows, Apple, and Android.
- Description: Doctor of Philosophy
- Authors: Harvey, William
- Date: 2020
- Type: Text , Thesis , PhD
- Full Text:
- Description: The acquisition of pilot navigational skills utilising visual landmarks is a crucial skill that is required as part of Visual Flight Rules navigation towards obtaining a Private Pilot License. Due to the high cost of pilot training simulators, industry has identified a need for research in efficient utilisation of low-end, low cost personal compute flight simulators to assist in developing pilot skills. Analysis of the effectiveness of the use of such personal computer simulators depend on proper configuration determined by measurable errors to define simulator fidelity. To date, research has shown that the configuration of these simulators appears to have been done in an ad-hoc fashion and not in a scientific fashion. Therefore, the problem that needed to be solved was how to effectively configure such simulators. This thesis research attempted to solve this problem and present the process for effectively configuring a personal computer simulator, or flight training device, capable of successful Visual Flight Rules navigation. The simulator was configurated utilising a process that followed an interpretation of the Design Science research method, and an error correction model to determine the errors in the simulator configuration. This was done by comparing two probability distributions to measure the maximum error variable distance in order to configure a simulator suitable for the acquisition of Visual Flight Rules navigation piloting skills required for obtaining a Private Pilot Licence in Australia. This error identification method was then used to indicate simulator configuration efficiency and fidelity in order to achieve a minimum suitable configuration and setup. Further application of the findings of this research could potentially lead to the configuration of different types of non-aviation simulators, in particular Part-Task-Trainers and other training devices, including Virtual Reality Augmented Reality devices utilising various types of platforms such as Windows, Apple, and Android.
- Description: Doctor of Philosophy
Grand designs, grim reality : political representation, competition and equity in regional Victoria
- Authors: Tischler, Catherine
- Date: 2020
- Type: Text , Thesis , PhD
- Full Text:
- Description: This work brings new understanding to the subtle ways in which the ability of one rural community to change is curtailed by self-reinforcement of an ideology not entirely of their own making. In a political environment where economic returns and population growth appear to be the true indicators of value and success, the struggle of some rural communities to change a long term and seemingly intractable trajectory of decline is well documented. The historical importance of rural communities as a place where food and fibre are grown has been challenged by market forces, climatic conditions and the relative growth of cities and service-based industries over the last three decades. To people in rural areas experiencing population stasis or decline, the situation appears to be a competition that is not being won at a local level. This thesis employs critical ethnography to understand a layered investigation of the ideological paradigms internalised by leaders in this community in a place-based setting to explore how this influences political advocacy and action. The work focusses on the Wimmera Southern Mallee region in Victoria, Australia with a particular emphasis on the city of Horsham as the major regional centre. The purpose of this work is to understand how ideology and behaviours are used to reinforce a system of power that is dominated by prestige leadership. The work also considers how external political and ideological influences may further reinforce on to leaders in the region a set of values and expectations which negatively impact on action and outcomes. The findings of this work have implications for rural community engagement, regional development, place-based initiatives and regional advocacy.
- Description: Doctor of Philosophy
- Authors: Tischler, Catherine
- Date: 2020
- Type: Text , Thesis , PhD
- Full Text:
- Description: This work brings new understanding to the subtle ways in which the ability of one rural community to change is curtailed by self-reinforcement of an ideology not entirely of their own making. In a political environment where economic returns and population growth appear to be the true indicators of value and success, the struggle of some rural communities to change a long term and seemingly intractable trajectory of decline is well documented. The historical importance of rural communities as a place where food and fibre are grown has been challenged by market forces, climatic conditions and the relative growth of cities and service-based industries over the last three decades. To people in rural areas experiencing population stasis or decline, the situation appears to be a competition that is not being won at a local level. This thesis employs critical ethnography to understand a layered investigation of the ideological paradigms internalised by leaders in this community in a place-based setting to explore how this influences political advocacy and action. The work focusses on the Wimmera Southern Mallee region in Victoria, Australia with a particular emphasis on the city of Horsham as the major regional centre. The purpose of this work is to understand how ideology and behaviours are used to reinforce a system of power that is dominated by prestige leadership. The work also considers how external political and ideological influences may further reinforce on to leaders in the region a set of values and expectations which negatively impact on action and outcomes. The findings of this work have implications for rural community engagement, regional development, place-based initiatives and regional advocacy.
- Description: Doctor of Philosophy
Harambe : Strategic alliance formation and performance evaluation in the tourism sector of travel
- Authors: Pansiri, Jaloni
- Date: 2006
- Type: Text , Thesis , PhD
- Full Text:
- Description: "This thesis investigates the influence of company and executive characteristics on strategic alliance formation (decision to form alliances, alliance type selection and choice of alliance partners) and performance evaluation of alliances, in the Australian tourism industry sector of travel. The significance of forming strategic alliances as a way of achieving 'harambe' is emphasised throughout this thesis. 'Harambe' is a ki-Swahili term meaning "to pull together, or to work together or to pull the same rope together at the same time" in harmony. The idea here is that companies pool their resources together through strategic alliances to be able to achieve their strategic goals and objectives. The research focuses on three travel sub-sectors - travel agencies, tour operators and wholesalers and how these sub-sectors relate with those of transport and accommodation." -
- Description: Doctor of Philosophy
- Authors: Pansiri, Jaloni
- Date: 2006
- Type: Text , Thesis , PhD
- Full Text:
- Description: "This thesis investigates the influence of company and executive characteristics on strategic alliance formation (decision to form alliances, alliance type selection and choice of alliance partners) and performance evaluation of alliances, in the Australian tourism industry sector of travel. The significance of forming strategic alliances as a way of achieving 'harambe' is emphasised throughout this thesis. 'Harambe' is a ki-Swahili term meaning "to pull together, or to work together or to pull the same rope together at the same time" in harmony. The idea here is that companies pool their resources together through strategic alliances to be able to achieve their strategic goals and objectives. The research focuses on three travel sub-sectors - travel agencies, tour operators and wholesalers and how these sub-sectors relate with those of transport and accommodation." -
- Description: Doctor of Philosophy
Short-term forecasting model for crude oil price based on artificial neural networks
- Authors: Haidar, Imad
- Date: 2008
- Type: Text , Thesis , Masters
- Full Text: false
- Description: This thesis examines the ability of Artificial Neural Networks (ANN) to predict crude oil spot price direction and short-term trends.
- Description: Masters of Computing
DSM-IV AD/HD symptoms: Prevalence, gender and age differences, and construct validity of parent and teacher ratings of Malaysian children
- Authors: Hafetz, Nina
- Date: 2007
- Type: Text , Thesis , PhD
- Full Text:
- Description: Attention-deficit/hyperactivity disorder (AD/HD) is marked by deficits in attention, hyperactivity and impulsivity (American Psychiatric Association, 1994). The current DSM-IV conceptualisation of AD/HD as comprising of separate, but related, Inattention (IA) and Hyperactivity/Impulsivity (H/I) dimensions have been supported in confirmatory factor analytic (CFA) studies. Despite being one of the most extensively studied childhood disorder, there is a lack of research on AD/HD in non-western populations. Research on AD/HD in Asian countries, particularly, is limited. To date, no study has comprehensively investigated the characteristics of AD/HD in a Malaysian sample. The current study had 4 major aims. The first aim of the study was to investigate how the IA and H/I symptoms groups vary by age, gender, and age by gender interaction. The second aim of the study was to obtain prevalence rates of DSM-IV AD/HD and the three subtypes (i.e., Predominantly Inattentive Type, AD/HD-IA; Predominantly Hyperactive/Impulsive Type, AD/HD-H/I; and Combined Type, AD/HD-C) within this population. This was examined for boys and girls separately, and together. The third aim of the study was to investigate the internal validity of DSM-IV AD/HD using single source confirmatory factor analysis (CFA), while the fourth aim of the study was to examine trait, source and error variance of the AD/HD symptoms using the CFA multitrait (IA and H/I) by multisource (parent and teacher) approach (CFA MT-MS). All the CFA and CFA MT-MS analyses were conducted separately for boys and girls and used scores recoded via the binary method, as opposed to the ordinal scoring method. The sample consisted of 934 Malaysian schoolchildren aged 6-12 years (436 boys: mean age 8.86 years; and 498 girls: mean age 9.02 years) [...] There was more source than trait variance for parent rated H/I and teacher rated IA for girls. Unique to the current study is the use of binary as opposed to ordinal data to run the CFA and MTMS analysis. The implications of the findings for the conceptualisation, assessment, treatment, psychometric properties of AD/HD rating scales and the recognition of AD/HD in the Malaysian population are discussed. Suggestions for future research are offered.
- Description: Doctor of Psychology (Clinical)
- Authors: Hafetz, Nina
- Date: 2007
- Type: Text , Thesis , PhD
- Full Text:
- Description: Attention-deficit/hyperactivity disorder (AD/HD) is marked by deficits in attention, hyperactivity and impulsivity (American Psychiatric Association, 1994). The current DSM-IV conceptualisation of AD/HD as comprising of separate, but related, Inattention (IA) and Hyperactivity/Impulsivity (H/I) dimensions have been supported in confirmatory factor analytic (CFA) studies. Despite being one of the most extensively studied childhood disorder, there is a lack of research on AD/HD in non-western populations. Research on AD/HD in Asian countries, particularly, is limited. To date, no study has comprehensively investigated the characteristics of AD/HD in a Malaysian sample. The current study had 4 major aims. The first aim of the study was to investigate how the IA and H/I symptoms groups vary by age, gender, and age by gender interaction. The second aim of the study was to obtain prevalence rates of DSM-IV AD/HD and the three subtypes (i.e., Predominantly Inattentive Type, AD/HD-IA; Predominantly Hyperactive/Impulsive Type, AD/HD-H/I; and Combined Type, AD/HD-C) within this population. This was examined for boys and girls separately, and together. The third aim of the study was to investigate the internal validity of DSM-IV AD/HD using single source confirmatory factor analysis (CFA), while the fourth aim of the study was to examine trait, source and error variance of the AD/HD symptoms using the CFA multitrait (IA and H/I) by multisource (parent and teacher) approach (CFA MT-MS). All the CFA and CFA MT-MS analyses were conducted separately for boys and girls and used scores recoded via the binary method, as opposed to the ordinal scoring method. The sample consisted of 934 Malaysian schoolchildren aged 6-12 years (436 boys: mean age 8.86 years; and 498 girls: mean age 9.02 years) [...] There was more source than trait variance for parent rated H/I and teacher rated IA for girls. Unique to the current study is the use of binary as opposed to ordinal data to run the CFA and MTMS analysis. The implications of the findings for the conceptualisation, assessment, treatment, psychometric properties of AD/HD rating scales and the recognition of AD/HD in the Malaysian population are discussed. Suggestions for future research are offered.
- Description: Doctor of Psychology (Clinical)
Anger : Specific cognitive and developmental factors : An investigation into the specific associations between anger, early maladaptive schemas and parenting
- Authors: Maud, Monica
- Date: 2006
- Type: Text , Thesis , PhD
- Full Text:
- Description: Three studies were undertaken to explore cognitive underpinnings of anger.
- Description: Doctor of Psychology (Clinical)
- Authors: Maud, Monica
- Date: 2006
- Type: Text , Thesis , PhD
- Full Text:
- Description: Three studies were undertaken to explore cognitive underpinnings of anger.
- Description: Doctor of Psychology (Clinical)
Barley non-starch polysaccharide content and its relationship with kernel hardness and water uptake
- Authors: Gamlath, Jayantha
- Date: 2009
- Type: Text , Thesis , PhD
- Full Text: false
- Description: Harder kernels in barley are thought to be a factor affecting the modification of the endosperm during malting by restricting water and enzyme movement within the endosperm. The traditional method used in the malting industry to determine barley endosperm vitreousness is by visual assessment. Since this method is subjective, laborious and requires training, an alternative method is needed. Similarly, the causes and factors influencing kernel hardness are uncertain. The prime objectives of this study were: to identify an appropriate method to quantify kernel hardness; investigate the relationship between kernel hardness and endosperm composition; and to investigate the relationship between barley variety and environmental influences on endosperm composition in relation to the kernel hardness of malting barley.
- Description: Doctor of Philosophy
- Authors: Gamlath, Jayantha
- Date: 2009
- Type: Text , Thesis , PhD
- Full Text: false
- Description: Harder kernels in barley are thought to be a factor affecting the modification of the endosperm during malting by restricting water and enzyme movement within the endosperm. The traditional method used in the malting industry to determine barley endosperm vitreousness is by visual assessment. Since this method is subjective, laborious and requires training, an alternative method is needed. Similarly, the causes and factors influencing kernel hardness are uncertain. The prime objectives of this study were: to identify an appropriate method to quantify kernel hardness; investigate the relationship between kernel hardness and endosperm composition; and to investigate the relationship between barley variety and environmental influences on endosperm composition in relation to the kernel hardness of malting barley.
- Description: Doctor of Philosophy
The sun-moths (lepidoptera: castniidae) of Victoria, with a detailed study of the pale sun-moth (Synemon selene klug, 1850)
- Authors: Douglas, Fabian
- Date: 2007
- Type: Text , Thesis , Masters
- Full Text:
- Description: The sun-moths (family Castniidae) are a distinctive group of monocot-feeding diurnal Lepidoptera that contains a high proportion of threatened species worldwide. Seven of the eight Victorian Synemon species are considered as threatened. This study has determined through extensive fieldwork that most of these species are now restricted to very small remnants of their particular habitats. These findings have been integrated into a review of the current distribution, biology and habitat requirements of all the Victorian species. This has enabled recommendations for their long-term conservation and management to be made. Special attention was paid to the Pale Sun-moth (Synemon selene Klug, 1850) because it appeared to be nationally endangered and without a government strategy for its conservation. Also, there was strong circumstantial evidence of complete parthenogenesis within all of its Victorian populations. The Victorian occurrences are shown to be parthenogenetic, although specimens of both sexes are known from a ?now-extinct population near Two Wells, South Australia. It was also established that these parthenogenetic populations include five distinct morphs, two or three of which occur sympatrically at four localities in the Wimmera area. Parthenogenetic populations of these morphs cannot interbreed, this potentially restricting their genetic diversity. The extent of genetic diversity was examined with all parthenogenetic Victorian morphs of S. selene. DNA sequencing of 1515 bp of the COI gene revealed a maximum divergence level of 12 bp between some of the morphs and 1 to 2 bp within some morphs. This level of genetic diversity implies that these morphs have continued to evolve in the absence of males through time. This study has highlighted the special academic interest of S. selene and the urgent need for its adequate conservation. Some important directions for future research on the species are also discussed.
- Description: Master of Applied Science
- Authors: Douglas, Fabian
- Date: 2007
- Type: Text , Thesis , Masters
- Full Text:
- Description: The sun-moths (family Castniidae) are a distinctive group of monocot-feeding diurnal Lepidoptera that contains a high proportion of threatened species worldwide. Seven of the eight Victorian Synemon species are considered as threatened. This study has determined through extensive fieldwork that most of these species are now restricted to very small remnants of their particular habitats. These findings have been integrated into a review of the current distribution, biology and habitat requirements of all the Victorian species. This has enabled recommendations for their long-term conservation and management to be made. Special attention was paid to the Pale Sun-moth (Synemon selene Klug, 1850) because it appeared to be nationally endangered and without a government strategy for its conservation. Also, there was strong circumstantial evidence of complete parthenogenesis within all of its Victorian populations. The Victorian occurrences are shown to be parthenogenetic, although specimens of both sexes are known from a ?now-extinct population near Two Wells, South Australia. It was also established that these parthenogenetic populations include five distinct morphs, two or three of which occur sympatrically at four localities in the Wimmera area. Parthenogenetic populations of these morphs cannot interbreed, this potentially restricting their genetic diversity. The extent of genetic diversity was examined with all parthenogenetic Victorian morphs of S. selene. DNA sequencing of 1515 bp of the COI gene revealed a maximum divergence level of 12 bp between some of the morphs and 1 to 2 bp within some morphs. This level of genetic diversity implies that these morphs have continued to evolve in the absence of males through time. This study has highlighted the special academic interest of S. selene and the urgent need for its adequate conservation. Some important directions for future research on the species are also discussed.
- Description: Master of Applied Science
Work/life balance through a critical ‘gender lens’ : A cross-country comparison of parental leave provisions and take-up in Australia and Sweden
- Authors: Zacharias, Nadine
- Date: 2007
- Type: Text , Thesis , PhD
- Full Text:
- Description: Work/life balance researchers have documented the low take-up rates of corporate work/life balance policies at the same time as there are reports of persistent work/life pressures. This research aims to provide more comprehensive explanations of the phenomenon of low policy take-up than those currently available in the work/life balance literature which focus on organisational and individual factors. The research project is based on a critical review of the work/life balance literature which focuses on organisational solutions and starts from the assumption that the organisational approach to researching and addressing work/life conflicts is inherently limited, mainly because it does not theorise gender as a social structure and does not take into consideration the social and political context in which work/life arrangements are negotiated but focuses, instead, on individual employees and organisations. I integrated my critical review of the organisational work/life balance literature with concepts in the feminist literature, most importantly the gendered public/private divide, to create an explicit ‘gender lens’ which guides the interpretations of my findings. I applied this gender lens to Habermas’ model of societal evolution to operationalise it as an analytical tool for this research. From this theoretical basis, I designed a comparative research project, using Australia and Sweden as country case studies, which compares the approaches to work/life balance in the two countries. The focus of the analysis is on parental leave as one important example of work/life balance policies. The data for this research includes the parental leave legislation, public documents released by governments and associated bodies as well as national surveys on the take-up of parental leave provisions in both countries. This material is analysed in the light of the conceptual framework. [...]
- Description: Doctor of Philosophy
- Authors: Zacharias, Nadine
- Date: 2007
- Type: Text , Thesis , PhD
- Full Text:
- Description: Work/life balance researchers have documented the low take-up rates of corporate work/life balance policies at the same time as there are reports of persistent work/life pressures. This research aims to provide more comprehensive explanations of the phenomenon of low policy take-up than those currently available in the work/life balance literature which focus on organisational and individual factors. The research project is based on a critical review of the work/life balance literature which focuses on organisational solutions and starts from the assumption that the organisational approach to researching and addressing work/life conflicts is inherently limited, mainly because it does not theorise gender as a social structure and does not take into consideration the social and political context in which work/life arrangements are negotiated but focuses, instead, on individual employees and organisations. I integrated my critical review of the organisational work/life balance literature with concepts in the feminist literature, most importantly the gendered public/private divide, to create an explicit ‘gender lens’ which guides the interpretations of my findings. I applied this gender lens to Habermas’ model of societal evolution to operationalise it as an analytical tool for this research. From this theoretical basis, I designed a comparative research project, using Australia and Sweden as country case studies, which compares the approaches to work/life balance in the two countries. The focus of the analysis is on parental leave as one important example of work/life balance policies. The data for this research includes the parental leave legislation, public documents released by governments and associated bodies as well as national surveys on the take-up of parental leave provisions in both countries. This material is analysed in the light of the conceptual framework. [...]
- Description: Doctor of Philosophy
The causes and prevention of airline baggage handler back injuries : Safe designs required where behaviour and administrative solutions have had limited effect
- Authors: Dell, Geoff
- Date: 2007
- Type: Text , Thesis , PhD
- Full Text:
- Description: "Back injuries have consistently been the most common types of injuries suffered by people at work. They have been a significant worker injury problem in most, if not all, industrialised countries for many years and manual handling has long been established as a significant task related back injury causal factor.[...] This research project established that the manufacturers of the jet airlines used by the airlines in this study had not previously been acquainted with the issue of baggage handler back injuries.[...] This study also canvassed the opinion of airline safety professionals and airline baggage handlers concerning baggage handling tasks and working environment related causal factors. [...] A major focus of this research project was also to measure the effect of ACE and Sliding Carpet, two commercially available retro-fit baggage systems, on the risk of back injuries to baggage handlers stacking baggage within Boeing B737 narrow-body aircraft."
- Description: Doctor of Philosophy
- Authors: Dell, Geoff
- Date: 2007
- Type: Text , Thesis , PhD
- Full Text:
- Description: "Back injuries have consistently been the most common types of injuries suffered by people at work. They have been a significant worker injury problem in most, if not all, industrialised countries for many years and manual handling has long been established as a significant task related back injury causal factor.[...] This research project established that the manufacturers of the jet airlines used by the airlines in this study had not previously been acquainted with the issue of baggage handler back injuries.[...] This study also canvassed the opinion of airline safety professionals and airline baggage handlers concerning baggage handling tasks and working environment related causal factors. [...] A major focus of this research project was also to measure the effect of ACE and Sliding Carpet, two commercially available retro-fit baggage systems, on the risk of back injuries to baggage handlers stacking baggage within Boeing B737 narrow-body aircraft."
- Description: Doctor of Philosophy
Electrokinetic remediation of arsenic contaminated soils
- Authors: Mewett, John
- Date: 2005
- Type: Text , Thesis , Masters
- Full Text:
- Description: "Arsenic is a common soil contaminant in Australia and worldwide. There is a need to find safe, effective and economic methods to deal with this problem. The soils used in this research were collected from central Victoria. They were contaminated with arsenic by historic gold mining activity or by past sheep dipping practices. This research investigated ten different leaching agents for their effects on three different arsenic contaminated soils. [...] Electrokinetic experiments were conducted on three arsenic contaminated soils. [...] The arsenic in these soils appears to be relatively stable and immobile under oxidising conditions. The soils had a high iron content which assists in the stabilisation of arsenic. This is beneficial with respect to the environmental impact of the arsenic contamination, however, it remains an obstacle to low cost electrokinetic remediation."
- Description: Masters of Applied Science
- Authors: Mewett, John
- Date: 2005
- Type: Text , Thesis , Masters
- Full Text:
- Description: "Arsenic is a common soil contaminant in Australia and worldwide. There is a need to find safe, effective and economic methods to deal with this problem. The soils used in this research were collected from central Victoria. They were contaminated with arsenic by historic gold mining activity or by past sheep dipping practices. This research investigated ten different leaching agents for their effects on three different arsenic contaminated soils. [...] Electrokinetic experiments were conducted on three arsenic contaminated soils. [...] The arsenic in these soils appears to be relatively stable and immobile under oxidising conditions. The soils had a high iron content which assists in the stabilisation of arsenic. This is beneficial with respect to the environmental impact of the arsenic contamination, however, it remains an obstacle to low cost electrokinetic remediation."
- Description: Masters of Applied Science
Unwrapping packages: Power politics and place in the delivery of community aged care
- Authors: Brown, Katrina
- Date: 2010
- Type: Text , Thesis , PhD
- Full Text:
- Description: The thesis analyses the delivery of the Community Aged Care Packages Program, revealing the flaws in the program’s design and the consequences of this programmatic design for service providers in rural Victoria
- Description: Doctor of Philosophy
- Authors: Brown, Katrina
- Date: 2010
- Type: Text , Thesis , PhD
- Full Text:
- Description: The thesis analyses the delivery of the Community Aged Care Packages Program, revealing the flaws in the program’s design and the consequences of this programmatic design for service providers in rural Victoria
- Description: Doctor of Philosophy
Investigation of the wear resistance and durability of high speed steel for use in sheep shearing comb construction
- Authors: Creelman, Glenn
- Date: 2001
- Type: Text , Thesis , Masters
- Full Text:
- Description: "The goal of this thesis was to evaluate high speed steel for use in the construction of sheep shearing combs, to determine if its use can be justified on a performance basis."
- Description: Master of Applied Science
- Authors: Creelman, Glenn
- Date: 2001
- Type: Text , Thesis , Masters
- Full Text:
- Description: "The goal of this thesis was to evaluate high speed steel for use in the construction of sheep shearing combs, to determine if its use can be justified on a performance basis."
- Description: Master of Applied Science
Optimization based methods for solving some problems in telecommunications and the internet
- Authors: Jia, Long
- Date: 2005
- Type: Text , Thesis , PhD
- Full Text:
- Description: The purpose of this thesis is to develop some new algorithms based on optimization techniques for solving some problems in some areas of telecommunications and the Internet. There are two main parts to this thesis. In the first part we discuss optimization based stochastic and queueing models in telecommunications network corrective maintenance. In the second part we develop optimization based clustering (OBC) algorithms for network evolution and multicast routing. The most typical scenario encountered during mathematical optimization modelling in telecommunications, for example, is to minimize the cost of establishment and maintenance of the networks subject to the performance constraints of the networks and the reliability constraints of the networks as well. Most of these optimization problems are global optimization, that is, they have many local minima and most of these local minima do not provide any useful information for solving these problems. Therefore, the development of effective methods for solving such global optimization problems is important. To run the telecommunications networks with cost-effective network maintenance,we need to establish a practical maintenance model and optimize it. In the first part of the thesis, we solve a known stochastic programming maintenance optimization model with a direct method and then develop some new models. After that we introduce queue programming models in telecommunications network maintenance optimization. The ideas of profit, loss, and penalty will help telecommunications companies have a good view of their maintenance policies and help them improve their service. In the second part of this thesis we propose the use of optimization based clustering (OBC) algorithms to determine level-constrained hierarchical trees for network evolution and multicast routing. This problem is formulated as an optimization problem with a non-smooth, non-convex objective function. Different algorithms are examined for solving this problem. Results of numerical experiments using some artifiicial and real-world databases are reported.
- Description: Doctor of Philosophy
- Authors: Jia, Long
- Date: 2005
- Type: Text , Thesis , PhD
- Full Text:
- Description: The purpose of this thesis is to develop some new algorithms based on optimization techniques for solving some problems in some areas of telecommunications and the Internet. There are two main parts to this thesis. In the first part we discuss optimization based stochastic and queueing models in telecommunications network corrective maintenance. In the second part we develop optimization based clustering (OBC) algorithms for network evolution and multicast routing. The most typical scenario encountered during mathematical optimization modelling in telecommunications, for example, is to minimize the cost of establishment and maintenance of the networks subject to the performance constraints of the networks and the reliability constraints of the networks as well. Most of these optimization problems are global optimization, that is, they have many local minima and most of these local minima do not provide any useful information for solving these problems. Therefore, the development of effective methods for solving such global optimization problems is important. To run the telecommunications networks with cost-effective network maintenance,we need to establish a practical maintenance model and optimize it. In the first part of the thesis, we solve a known stochastic programming maintenance optimization model with a direct method and then develop some new models. After that we introduce queue programming models in telecommunications network maintenance optimization. The ideas of profit, loss, and penalty will help telecommunications companies have a good view of their maintenance policies and help them improve their service. In the second part of this thesis we propose the use of optimization based clustering (OBC) algorithms to determine level-constrained hierarchical trees for network evolution and multicast routing. This problem is formulated as an optimization problem with a non-smooth, non-convex objective function. Different algorithms are examined for solving this problem. Results of numerical experiments using some artifiicial and real-world databases are reported.
- Description: Doctor of Philosophy
Model free operational space control of mechanical manipulators
- Authors: Saleem, Muhammad Saad
- Date: 2009
- Type: Text , Thesis , PhD
- Full Text:
- Description: Doctor of Philosophy
- Authors: Saleem, Muhammad Saad
- Date: 2009
- Type: Text , Thesis , PhD
- Full Text:
- Description: Doctor of Philosophy
Development of a model of mental health vulnerability for young men living in rural and regional areas : An investigation of the roles of sense of belonging and employment status
- Authors: Jenkins, Megan
- Date: 2008
- Type: Text , Thesis , Doctorate
- Full Text:
- Description: Professional Doctorate of Psychology (Clinical)
- Authors: Jenkins, Megan
- Date: 2008
- Type: Text , Thesis , Doctorate
- Full Text:
- Description: Professional Doctorate of Psychology (Clinical)