Digital Commons Network^™

Investigating The Effects Of Changes In Light Quality On Different Life History Stages Of Seagrasses, Simone Strydom

Theses: Doctorates and Masters

Seagrass meadows provide crucial ecosystem services to the coastal zone but globally are threatened. Seagrass loss to date has mainly been attributed to anthropogenic activities that reduce light quantity, such as dredging, declining water quality from urban and agricultural run-off and eutrophication. However, light quality (wavelengths of light) is also altered by these anthropogenic stressors as well as natural events. This study consisted of three main components: (1) characterising light quality to which seagrasses are exposed across a local natural estuarine-ocean gradient and with a human impact pressure; (2) the influence of monochromatic light quality (blue λ=451 nm; green λ=522 …

From Gd2o3suspension To Nanocomposite: Synthesis, Properties And Radiation Protection, Ly B. T. La

Theses: Doctorates and Masters

This study provides details for the design, preparation of an environmentally friendly, clinically safe and lightweight radiation protective shield made ofGd2O3/epoxy nanocomposite (Gd-nanocomposite) which is proposed as an alternative to traditional toxic lead (Pb)-based aprons for diagnostic X-ray protection. In theory, this particulate nanocomposite can possess significant features of both inorganic particles and organic polymeric matrices. However, in practice, its performance does not simply depend on the sum of the individual contributions of characteristics of the constituent phases but on the interaction of their inner interfaces and the homogeneous dispersion of inorganic particles in the polymer matrix.

The miniaturization of …

Ecology Of Savanna Ecosystems In Indonesia, Sutomo

Theses: Doctorates and Masters

Tropical savannas in South East Asia are important yet understudied ecosystems. In fact, the description of savanna is limited in the Indonesian Archipelago, a region which, based on climate alone, would be expected to have mostly forest. In this thesis, I compared and contrasted the vegetation characteristics of four savannas in the wetter part of the Indonesian archipelago (Java – Bali – Lombok) to understand how fire and grazing influence their dynamics, and searched for evidence of savanna origins, maintenance, invasion by exotic/woody species and possible ecosystem transitions. Vegetation surveys, remote sensing techniques and statistical models were used to spatially …

Older Indigent Women’S Economic Crimes: Subsuming Feminism In Favour Of A Human Rights Explanation, Patricia Joan Rhodes

Theses: Doctorates and Masters

Many people today believe the concept of gender inequality is outmoded, irrelevant and unnecessary in Western societies that are deemed egalitarian. As a consequence, feminism as a movement with gender equality at its core has often been proclaimed ‘dead’,a relic of the past. Feminist perspectives, nevertheless, have produced differing points of view about the sources of gender inequality affecting crime rates and criminal behaviour.

For the last 50 years or so, women and girls have been the subject of criminological research that has largely evolved from sociological perspectives and specifically from feminism. Although gender intersects with other social realities and …

Coaching Parents Of Children With Adhd: A Western Australian Study, Susan Mary Hughes

Theses: Doctorates and Masters

Parents of children with Attention Deficit/Hyperactivity Disorder (ADHD) often experience emotional and behavioural difficulties that contribute to stress and conflict in their family relationships. ADHD Parent Coaching is a promising intervention for these families; however, little is known about its effectiveness. This study explored the effects parent coaching had on parents of children with ADHD using descriptive case study methodology. A secondary purpose was to measure any reduction in stress and homework problems. A workshop offering solutions to homework-related issues was conducted over two consecutive weeks. Parents who attended (N=10) were offered parent coaching, and five parents were subsequently coached …

Processing, Microstructure And Mechanical Properties Of Beta-Type Titanium Porous Structures Made By Additive Manufacturing, Yujing Liu

Theses: Doctorates and Masters

Tissue engineering through the application of a low modulus, high strength format as a potential approach for increasing the durability of bone implants has been attracting significant attention. Titanium alloys are widely used for biomedical applications because of their low modulus, high biocompatibility, specific strength and corrosion resistance. These reasons affirm why titanium alloy is selected as the specific material to research. The development of low modulus biomaterials is considered to be an effective method to remove the mismatch between biomaterial implants and surrounding bone tissue, thereby reducing the risk of bone resorption. So far, Ti–24Nb–4Zr–8Sn alloy (abbreviated hereafter as …

Exploring The Impact Of Postgraduate Preservice Primary Science Education On Students’ Self-Efficacy, Christina Maria Norris

Theses: Doctorates and Masters

The effectiveness of science teaching in primary school is dependent upon teachers’ self-efficacy to teach science. Low self-efficacy has been linked to avoidance of teaching primary science; therefore, preservice teacher self-efficacy requires fostering to have graduates keen to teach primary science. Through an embedded mixed method intrinsic-case study, this research explored the impact of postgraduate preservice primary science education on students’ self-efficacy. This research examined the postgraduate students’ self-efficacy as the lens to determine the effectiveness of the design and pedagogical instruction of the unit and its tutors. Data sources included the use of pre/post surveys encompassing the Science Teaching …

International Postgraduate Students And Their Reasons For Choosing To Study At Public Universities In Perth, Western Australia, Steven Cohen

Theses: Doctorates and Masters

The global higher education sector has become increasingly competitive. A large segment of that market now consists of attracting international students. Understanding why these students are motivated to study overseas is crucial for universities seeking to attract the transnational students as well as for the host country. Trading education is now Australia’s third largest export. As the international market for students becomes more crowded, it is imperative that thorough and concise research occurs to assist local universities within Australia to maintain their competitive advantage.

Perth, Western Australia (WA) comprises a small segment of the international Australian tertiary education market. An …

An Ecological Characterisation Of A Shallow Seasonal Claypan Wetland, Southwestern Australia, Nakisa Shahrestani

Theses: Doctorates and Masters

Perched, seasonal claypans of southwestern Australia are poorly understood in terms of their ecological character, such as relationship between hydrology and their biota. An example is Little Darkin Swamp, located on the Darling Plateau in southwestern Australia. The overall aim of this thesis was to describe its ecological character, to understand what drives this claypan system and how its ephemeral nature affects wetland processes and functions.

This study first comprised a detailed characterisation of the wetland’s attributes, following the geomorphic-hydrological approach proposed by Semeniuk and Semeniuk (2011). This revealed that its hydrology is highly dependent on rainfall, that it is …

Women In District Assemblies In Ghana: Gender Construction, Resistance And Empowerment, Janet Serwah Boateng

Theses: Doctorates and Masters

Calls for more female participation in politics have featured strongly in developed and developing countries since 1975 when the UN made women’s issues a priority. Ghanaian society’s underlying patriarchal structure has made some progress towards gender equity in politics. Whilst there has been a significant improvement in levels of female participation and representation rates, targets have not been reached and the least amount of progress has taken place in local government. The thesis draws upon theories of gender and development (GAD) that emphasises on gender relations in development and proposed the empowerment of women as central to gender equality. Also, …

Sensor-Driven Detection Of Social Isolation In Community-Dwelling Elderly, W K P Neranjana Nadee Rodrigo Goonawardene, Xiaoping Toh, Hwee-Pink Tan

Research Collection School Of Computing and Information Systems

Ageing-in-place, the ability to age holistically in the community, is increasingly gaining recognition as a solution to address resource limitations in the elderly care sector. Effective elderly care models require a personalised and all-encompassing approach to caregiving. In this regard, sensor technologies have gained attention as an effective means to monitor the wellbeing of elderly living alone. In this study, we seek to investigate the potential of non-intrusive sensor systems to detect socially isolated community dwelling elderly. Using a mixed method approach, our results showed that sensor-derived features such as going-out behavior, daytime napping and time spent in the living …

Fine-Grained Sentiment Analysis Of Social Media With Emotion Sensing, Zhaoxia Wang, Chee Seng Chong, Landy Lan, Yinping Yang, Beng-Seng Ho, Joo Chuan Tong

Research Collection School Of Computing and Information Systems

Social media is arguably the richest source of human generated text input. Opinions, feedbacks and critiques provided by internet users reflect attitudes and sentiments towards certain topics, products, or services. The sheer volume of such information makes it effectively impossible for any group of persons to read through. Thus, social media sentiment analysis has become an important area of work to make sense of the social media talk. However, most existing sentiment analysis techniques focus only on the aggregate level, classifying sentiments broadly into positive, neutral or negative, and lack the capabilities to perform fine-grained sentiment analysis. This paper describes …

Towards Improving East Coast Fever (Ecf) Diagnosis: Validation Of Loop-Mediated Isothermal Amplification (Lamp) Assays For Rapid Detection Of Theileria Parva, The Causative Agent Of Ecf In Cattle, Moses Njahira Ndotono

All Master’s Theses

East Coast fever (ECF) is a serious tick-borne parasitic disease of cattle and is a major constraint to the livestock sector in east, central and southern Africa. ECF is caused by a protozoan parasite, Theileria parva, transmitted by the tick, Rhipicephalus appendiculatus. Several serological and molecular assays have been developed, for use in epidemiological studies, monitoring control programmes, and for research. Amongst the plethora of molecular assays for T. parva is a p104 gene nested-PCR (p104-nPCR) assay, a validated ‘gold-standard' PCR assay. However, p104-nPCR requires sophisticated equipment and 1-2 days to perform. Two simple, rapid molecular assays for T. parva, …

Species Composition And Pollinator Efficiency Of Ocimum Kilimandscharicum Flower Visitors Along Kakamega Forest Ecosystem, Hellen Mandela Kutwa

All Master’s Theses

Pollination is an important ecosystem service in the maintenance of biodiversity and most importantly in food production as it brings about fruit formation and seed production. Pollination is, however, on the decline due to several factors including habitat loss, exotic pest invasions, pollution, overharvesting, and land use changes. The Ocimum kilimandscharicum plant is known for its medicinal values and has gained more attention locally and internationally for its commercial use in production of pharmaceutical products. This study analyzed the flower visitors' activity of Ocimum kilimandscharicum in Kakamega forest. Specifically, the study sought to: (i) assess the diversity and abundance of …

Youth Work Supervision: Supporting Practice Through Reflection, Jocelyn Wiedow

Journal of Youth Development

The role of a youth work supervisor is critical in supporting frontline staff to develop and strengthen their skills to provide high-quality programs for youth. This article emphasizes the need for supervisors to create a staff-centered approach to reflection. Key elements of strong youth work supervision include building trust with staff, embedding reflection into supervisory practice, and seeking continued support to improve supervisory practice. Examples from the field illustrate how these components can look in practice.

A Tale Of Two Gyres: Contrasting Distributions Of Dissolved Cobalt And Iron In The Atlantic Ocean During An Atlantic Meridional Transect (Amt-19), Rachel U. Shelley, Neil J. Wyatt, Glenn A. Tarran, Andrew P. Rees, Paul J. Worsfold, Maeve C. Lohan

School of Geography, Earth and Environmental Sciences

Cobalt (Co) and iron (Fe) are essential for phytoplankton nutrition, and as such constitute a vital link in the marine biological carbon pump. Atmospheric deposition is an important, and in some places the dominant, source of trace elements (TEs) to the global ocean. Dissolved cobalt (dCo) and iron (dFe) were determined along an Atlantic Meridional Transect (AMT-19; Oct/Nov 2009) between 50°N and 40°S in the upper 150 m in order to investigate the behaviour and distribution of these two essential, bioactive TEs. During AMT-19, large differences in the distributions of dCo and dFe were observed. In the North Atlantic gyre …

Development Of The Meal Framework: A Multiliteracies Approach To Engaging Adolescents In Nutrition Education, Samantha Lee Baker

Theses: Doctorates and Masters

Establishing and maintaining a healthy diet is integral in promoting optimal health, growth and development. Moreover, the food choices we make and dietary behaviours we adopt are a reflection of the multiple personal, interpersonal and environmental factors to which we are exposed. Consequently, changing food habits and dietary behaviour is complex and requires the implementation of multifaceted public health strategies. Comprehensive nutrition education provided to adolescents during their school years is one such approach.

Adolescence is a period of rapid psychological and physiological changes. At a socioemotional level, there is a decreased level of dependence on parents and a greater …

The Lived Experience Of Non-Offending Mothers In Cases Of Intrafamilial Child Sexual Abuse: Towards A Preliminary Model Of Loss, Trauma And Recovery, Amanda Jean Thompson

Theses: Doctorates and Masters

The non-offending mother in cases of intrafamilial child sexual abuse has received limited empirical attention in comparative to the considerable body of literature examining victims and perpetrators of child sexual abuse. There is growing evidence that demonstrates that nonoffending mothers’ experience significant loss and trauma following the discovery of their children’s sexual victimisation by a family member, particularly where the perpetrators are their partners. An understanding of the non-offending mother’s experience is crucial to guiding statutory agencies and therapeutic interventions when working with these families. However, there is currently not a model or framework that conceptualises mothers’ post-discovery experience, and …

The Connection Between Drug Use And Crime In Western Australia, Kathryn Riordan

Theses: Doctorates and Masters

Despite decades of research, there is no consensus as to the factors that explain the association between drug use and criminal behaviour. While the evolving sophistication in research methodology has identified factors that are associated with involvement in both drug use and crime, exploration of the idiosyncratic factors that contribute to initiation, maintenance and desistence in drug use and criminal behaviour over time, across culture and social context remains unknown. In this research a grounded theory approach was used to develop an explanatory model based on the reported experiences of 22 non-Aboriginal and 11 Aboriginal adult male offenders, incarcerated in …

Biodiversity Monitoring Using Environmental Dna: Can It Detect All Fish Species In A Waterbody And Is It Cost Effective For Routine Monitoring?, Lia Smith

Theses: Doctorates and Masters

The challenges associated with environmental monitoring such as the impact on the environment and the financial costs are problems we face when trying to conserve freshwater systems around the world. The need for precise and accurate results that are cost effective is important so that we can achieve our conservation goals.

The overall aim of this study was to explore Next-Generation - metabarcoding for the detection of feral and native freshwater fish species based on the DNA shed by individual organisms into the water column. Cytochrome c oxidase I (COI) primers were developed for this study using DNA from six …

An Assessment Of Nurses’ Experiences Of Work Related Stress Through Self-Reporting And Hair Cortisol Analysis, In A Metropolitan Hospital In Western Australia, Kim Oliver

Theses: Doctorates and Masters

The aim of this study was to assess how years of experience and practice area influence work related stress amongst 1,200 nurses employed in a metropolitan hospital environment in Western Australia. A combination of self-administered questionnaires and hair cortisol, an objective stress biomarker, was utilised to measure stress levels and to relate these to practice area, age and experience. Questionnaire results indicated that there was a higher level of perceived stress for 40% of this cohort of nurses; the study methodology was able to unearth noteworthy factors within a local WA nursing population that impacted on their perceived stress. These …

The Effects Of Augmented Feedback On Pacing And Performance Of Elite Combat Athletes, Israel Halperin

Theses: Doctorates and Masters

Augmented feedback has been shown to improve performance and influence pacing in various physical activities. However, few studies have investigated its effects on performance and pacing in striking combat sports. Additionally, despite the plethora of studies examining the influence of feedback in untrained individuals, there is a lack of research examining the effects of such feedback in trained participants. Considering the important role of feedback in training and competition, the purpose of this thesis is to examine the effects of three different but inter-dependent methods of augmented feedback on performance of combat, and resistance trained athletes.

Study 1 examined the …

Towards Active Ageing: A Comparative Study Of Experiences Of Older Ghanaians In Australia And Ghana, Daniel Doh

Theses: Doctorates and Masters

Population ageing has become a central feature of the 21st century, as most countries search for economically viable strategies to support and manage their ageing populations to live in a dignified way. In 2002, the World Health Organisation (WHO) proposed the active ageing policy framework to guide countries to develop policies that promote the quality of life for their older people. However, the interpretation and application of the active ageing model in the literature and policy discussions are inconclusive on the most important elements that promote the quality of life of older people. The discussions have largely focused on health …

Influence Of Micropropagation On The Ontogenetic Phases Of Paulownia, Michael Pezzaniti

Theses: Doctorates and Masters

The aim of this research was to examine whether the method of micropropagation and tissue source affects the early growth and development of Paulownia in the first six months following transfer from tissue culture and establishment in soil. This tree species was chosen as it is a fast growing, short-rotation timber tree and able to adapt successfully to new environments. It is easily established in vitro and has been micropropagated using a range of different techniques. Three methods of micropropagation were chosen: callus regeneration, somatic embryogenesis and the third method was inducing root suckers in vitro. The third method …

Investigating The Use Of A Digital Diary For Home-School Communication Between Parents And Teachers Of Children With Additional Needs, Dawn Lisa Hallett

Theses: Doctorates and Masters

The use of paper diaries to facilitate home-school communication for children with additional needs has shown to have numerous limitations. While the use of mobile digital devices has increased in schools, little research exists into the use of these devices for home-school communication purposes. This study explored the effects of using a digital diary to facilitate home-school communication for primary aged children with additional needs. A constructivist multiple case study approach was used. The digital diary utilised the software application Evernote. This free application was hosted on study participants’ mobile devices or accessed over the Internet. Pre-innovation interviews and surveys …

Tracing The Ancestral Roots And The Flow Of Pedagogical Practices In The Development Of Ballet Teaching From 1950 To 2016 In Perth, Western Australia, Diana C. M. Beck

Theses: Doctorates and Masters

In the history of dance, that of ballet is but a fragment. The art of ballet is affiliated with the arts of music, literature, and those of the visual arts: its international history covering some 500 years. This thesis spotlights Perth, the capital of Western Australia (WA) and one of the world’s most geographically isolated capital cities. Throughout its balletic history of less than a century, Perth has seen rapid growth in this art form. As in all the arts, pedagogic rules act as guidelines for the teaching of traditional ballet vocabulary; consequently, in order to understand this development and …

The Role Of The Seagrass Leaf Microbiome In Assisting Nitrogen Uptake By The Western Australian Seagrass, Posidonia Sinuosa, Flavia Tarquinio

Theses: Doctorates and Masters

Microorganisms play a key role in facilitating the cycling of several elements in coastal environments, including nitrogen (N). N is a key component for maintaining high seagrass productivity and is often the limiting nutrient in marine environments. Seagrasses harbour an abundant and diverse microbial community (the ‘microbiome’), however their ecological and functional roles related to the seagrass host are still poorly understood, in particular regarding N cycling. Microorganisms capable of mineralising dissolved organic nitrogen (DON) may play a pivotal role in enhancing N availability in coastal environments such as seagrass meadows. Thus, the overall aim of my thesis was to …

Reproductive Effects Of Endocrine Disrupting Chemicals, Bisphenol-A And 17Β-Oestradiol, On Cerastoderma Edule From South-West England: Field Study And Laboratory Exposure, Al Lusher, N Pope, Rd Handy

School of Biological and Marine Sciences

No abstract provided.

A Family Is What You Make It? Legal Recognition And Regulation Of Multiple Parents, Haim Abraham

American University Journal of Gender, Social Policy & the Law

Multiparental family structures, in which there are more than two parents, are becoming increasingly common. Thus, they defy the social and legal conception of the nuclear family. Yet, despite the growing number of multiparental families, their legal status in most jurisdictions is not recognized, leaving various issues unaddressed and potentially risking the children’s best interests. This paper examines how the legislatures and courts of California, Canada, and the U.K. recognize and regulate multiparental families. It shows that the treatment of multiparental families varies from non-recognition of any status, through regulation of the multiparental family, to the recognition of the multiparental …

The Price Of Price Waterhouse: How Title Vii Reduces The Lives Of Lgbt Americans To Sex And Gender Stereotypes, Drew Culler

American University Journal of Gender, Social Policy & the Law

No abstract provided.