Digital Commons Network^™

Links Between Insulin Resistance, Lipoprotein Metabolism And Amyloidosis In Alzheimer's Disease, Ian J. Martins, Rhona Creegan

Research outputs 2014 to 2021

The origins of premature brain aging and chronic disease progression are associated with atherogenic diets and sedentary lifestyles in Western communities. Interests in brain aging that involves non alcoholic fatty liver disease (NAFLD), the global stroke epidemic and neurodegeneration have become the focus of nutritional research. Atherogenic diets have been linked to plasma ceramide dysregulation and insulin resistance actively promoting chronic diseases and neurodegeneration in developed countries. Abnormal lipid signaling as observed in chronic diseases such as hypothyroidism, obesity and diabetes is connected to stroke and neurodegenerative diseases in man. Lipids that are involved in calcium and amyloid betahomeostasis are …

Frequency Estimation Of Single-Tone Sinusoids Under Additive And Phase Noise, Asmaa Nazar Almoosawy, Zahir Hussain, Fadel A. Murad

Research outputs 2014 to 2021

We investigate the performance of main frequency estimation methods for a single-component complex sinusoid under complex additive white Gaussian noise (AWGN) as well as phase noise (PN). Two methods are under test: Maximum Likelihood (ML) method using Fast Fourier Transform (FFT), and the autocorrelation method (Corr). Simulation results showed that FFT-method has superior performance as compared to the Corr-method in the presence of additive white Gaussian noise (affecting the amplitude) and phase noise, with almost 20dB difference.

Pathways To Success: Evaluating The Use Of "Enabling Pedagogies" In A University Transition Course, Jeniffer M. Lane, Suzanne Sharp

Research outputs 2014 to 2021

All universities in the Western world strive to attract and retain students, particularly those students who would not normally engage in tertiary studies. One way to widen access to university courses is to provide an enabling or alternative entry pathway course. The research reported in this paper was undertaken at an Australian university that has a social equity agenda to support students from diverse backgrounds to successfully engage in tertiary study. An evaluation was conducted of a particular pathway course at this university, with a view to contributing to knowledge on teaching and learning strategies in enabling courses. The research …

Analogue Angels And Digital Diamonds: Tracing The Origins Of New Media Art, John C. Ryan

Research outputs 2014 to 2021

This paper explores the key vocabularies, themes, ideas, artistic movements, and technological innovations contributing to the development of the digital arts over time. As new media theorists have argued, one of the defining features of the digital arts is the break-down of divisions between art forms, and between art and society (for example, Manovich 2001, 2005). This paper outlines how digital processes intersect with aesthetic and conceptual forms. Relevant frameworks, such as materiality, embodiment, hybridity, interactivity, and narrativity, form the origins of the genre. Digital artworks, like digital media, are interactive, participatory, dynamic, and customizable, incorporating shifting data flows and …

A Genetic Algorithm-Based Feature Selection, Oluleye H. Babatunde, Leisa Armstrong, Jinsong Leng, Dean Diepeveen

Research outputs 2014 to 2021

This article details the exploration and application of Genetic Algorithm (GA) for feature selection. Particularly a binary GA was used for dimensionality reduction to enhance the performance of the concerned classifiers. In this work, hundred (100) features were extracted from set of images found in the Flavia dataset (a publicly available dataset). The extracted features are Zernike Moments (ZM), Fourier Descriptors (FD), Lengendre Moments (LM), Hu 7 Moments (Hu7M), Texture Properties (TP) and Geometrical Properties (GP). The main contributions of this article are (1) detailed documentation of the GA Toolbox in MATLAB and (2) the development of a GA-based feature …

Aurora Leigh And Elizabeth Barrett-Browning's Most Convenient Cousin, Jill F. Durey

Research outputs 2014 to 2021

The article examines the possibility that the fictional cousin marriage in Aurora Leigh was either a token of gratitude by Elizabeth Barrett-Browning for her real-life philanthropic cousin’s generosity to her or was a masked promise of immortality to him as he lay dying.

Toward A New, Musical Paradigm Of Place: The Port River Symphonic Of Chester Schultz, Robin Ryan

Research outputs 2014 to 2021

In privileging music as a focus for applied ecology, the goal of this essay is to deepen perspectives on the musical representation of land in an age of complex environmental challenge. As the metaphor driving public narration of environmental crises, the notion of Earth as our home—signified by the prefix “eco”—brings with it a critical expectation for the musical academy to retreat from bland talk about a “sense of place.” Based on the premise that damaged ecologies are a matter of concern to many people, Indigenous and Settler; and building on the late Val Plumwood’s theory of “shadow” or “denied” …

Student Perceptions Of Online Interactive Versus Traditional Lectures; Or How I Managed Not To Fall Asleep With My Eyes Open, John A. O'Rourke, Susan J. Main, Martin G. Cooper

Research outputs 2014 to 2021

Universities are increasingly experimenting with the online domain to connect with busy and digital-savvy students and counter the decline in face-to-face lecture attendance More often than not universities are offering videoed lectures or PowerPoints with lecturer voice-overs as a way of delivering content. Evidence suggests that while these techniques may provide the flexibility required, some content needs more personalised delivery. In this article the authors explore the development and delivery of an online lecture format. Using a combination of video, text and interactive cell technology, this online offering was trialed in a unit focused on the education of students with …

On The Application Of Genetic Probabilistic Neural Networksand Cellular Neural Networks In Precision Agriculture, Oluleye H. Babatunde, Leisa Armstrong, Jinsong Leng, Dean Diepeveen

Research outputs 2014 to 2021

This article details the effect of Gaussian smoothing parameter (spread) on the performance of Probabilistic Neural Networks (PNN). Two (2) different Genetic Algorithms (GAs) were used to optimize the PNN spread in order to avoid under and over fitting. In this work there is a novel combination of Cellular Neural Networks (CNN), Probabilistic Neural Networks (PNN) and GA to address the present challenges on automatic identification of plant species. Such problems include misclassification species of plants that are similar in shapes and image segmentation speed. In this work, GA was used in both feature selection and PNN parameter optimization. The …

Educational Innovations And Pedagogical Beliefs: The Case Of A Professional Development Program For Indonesian Teachers, Cher Ping Lim, Jo Tondeur, Hendrati Nastiti, Jeremy E. Pagram

Research outputs 2014 to 2021

This study aimed to explore the impact of a professional development program on the teachers’ pedagogical beliefs and practices. More specifically, the program endeavoured to design a prototype for teacher professional development in Indonesia that was sustainable and scalable. This one-year program built upon the participating teachers’ existing practices, reinforced with the concept of reflection as a tool for ongoing inquiry of their own practices. The three major components of this program were: action research, peer-coaching and leadership support. By using a mixed method of quantitative and qualitative data collection, this study examined the changes in the participating teachers’ beliefs …

Bastard Immigrants: Asylum Seekers Who Arrive By Boat And The Illegitimate Fear Of The Other, Lelia R. Green, Anne Aly

Research outputs 2014 to 2021

The human capacity to marginalise and discriminate against others on the basis of innate and constructed characteristics is evident from the long history of discrimination against people whose existence is ‘illegitimate’, defined as being outside the law. What is inside or outside the law depends upon the context under consideration. For example, in societies such as ancient Greece and the antebellum United States, where slavery was legal, people who were constructed as ‘slaves’ could legitimately be treated very differently from ‘citizens’: free people who benefit from a range of human rights (Northup). The discernment of what is legitimate from that …

Beyond Madness: Ways To Foster Nonviolence In Human Systems, Marilyn J. Palmer

Research outputs 2014 to 2021

Positioned as an epilogue to the themed edition of Social Alternatives on the nature and politics of madness in contemporary Australian society, this article has been inspired by the narratives and analyses of the contributors to this edition. It aims to go beyond madness to explore _strategies of resistance to the violence of marginalisation, humiliation and incarceration which often comes before and after a diagnosis of madness. Proposed strategies for resistance include studying up and speaking back to the oppressors; improving the capacity of bystanders to intervene; holding a structural analysis of power and resistance to support social change work; …

Social Engagement, Setting And Alcohol Use Among A Sample Of Older Australians, Julie Dare, Celia Wilkinson, Steve Allsop, Stacey Waters, Sheila Mchale

Research outputs 2014 to 2021

The harms associated with risky alcohol consumption have long been researched and recognised in the health field. However, little available research has focused on older people, or extended analysis of alcohol use by this segment of the population beyond a bio-medical perspective. With the rapid ageing of the global population, research that investigates alcohol use amongst older people from a social perspective is important. This article reports on research with a group of older women and men, to identify and explain factors that influence alcohol consumption. In-depth interviews were conducted in Perth, Western Australia with 20 men and 22 women …

Carer Experiences With Rehabilitation In The Home: Speech Pathology Services For Stroke Survivors, Katy Stewart, Natalie Ciccone, Elizabeth Armstrong

Research outputs 2014 to 2021

Caring for a stroke survivor can be a complex role with carers at an increased risk of mental health difficulties. Early supported discharge from hospital with rehabilitation in the home (RITH) allows stroke survivors to return home at an earlier stage in the recovery process, potentially placing an extra burden on carers. Being involved in intensive therapy,in the home, in the early days post-stroke may be difficult with the role and experiences of carers in RITH being underresearched. This paper identifies the roles, experiences and preferences of ten carers of stroke survivors with dysarthia and dysphagia. Many carers were involved …

Enhancing First Year Student Engagement: Collaborative Practice In A Core Business Unit, Tina Fleming, Alicia Stanway

Research outputs 2014 to 2021

The purpose of this paper, informed by an action research framework, was to evaluate how a collaborative approach between unit facilitators and learning advisors in a first-year core business unit contributes to an environment where students are actively engaged in their learning. Student engagement in their learning is a key priority for university faculties, particularly in first year, as it is a key factor in student performance and persistence in their studies. Using the Australasian Survey of Student Engagement as a benchmark, a mixed-methods approach was adopted using an online survey (n_171) and focus groups

(n _ …

Improving Health Professional's Knowledge Of Hepatitis B Using Cartoon Based Learning Tools: A Retrospective Analysis Of Pre And Post Tests, Moira G. Sim, Ashleigh C. Mcevoy, Toni D. Wain Ms, Eric L. Khong

Research outputs 2014 to 2021

Background: Hepatitis B serology is complex and a lack of knowledge in interpretation contributes to the inadequate levels of screening and referral for highly effective hepatitis antiviral treatments. This knowledge gap needs to be addressed so that current and future healthcare professionals are more confident in the detection and assessment of hepatitis B to improve the uptake of treatment and reduce long-term complications from the disease. Cartoons have been used effectively as a teaching tool in other settings and were considered as a potentially useful teaching aid in explaining hepatitis B serology. This study examines the impact of cartoons in …

A Comparison Of Aphasia Therapy Outcomes Before And After A Very Early Rehabilitation Programme Following Stroke, Erin Godecke, Natalie A. Ciccone, Andrew S. Granger, Tapan Rai, Deborah West, Angela Cream, Jade Cartwright, Graeme J. Hankey

Research outputs 2014 to 2021

Background Very early aphasia rehabilitation studies have shown mixed results. Differences in therapy intensity and therapy type contribute significantly to the equivocal results. Aims To compare a standardized, prescribed very early aphasia therapy regimen with a historical usual care control group at therapy completion (4-5 weeks post-stroke) and again at follow-up (6 months). Methods & Procedures This study compared two cohorts from successive studies conducted in four Australian acute/sub-acute hospitals. The studies had near identical recruitment, blinded assessment and data-collection protocols. The Very Early Rehabilitation (VER) cohort (N = 20) had mild-severe aphasia and received up to 20 1-h sessions …

Altered Cytological Parameters In Buccal Cells From Individuals With Mild Cognitive Impairment And Alzheimer's Disease, Maxime François, Wayne Leifert, Jane Hecker, Jeffrey Faunt, Ralph Martins, Philip Thomas, Michael Fenech

Research outputs 2014 to 2021

Previous studies have shown that mild cognitive impairment (MCI) may be reflective of the early stages of more pronounced neurodegenerative disorders such as Alzheimer's disease (AD). There is a need for a minimally invasive and inexpensive diagnostic to identify those who exhibit cellular pathology indicative of MCI and AD risk so that they can be prioritized for primary preventative measures. The hypothesis was that a minimally invasive approach using cytological markers in isolated buccal mucosa cells can be used to identify individuals of both MCI and AD. An automated buccal cell assay was developed using laser scanning cytometry (LSC) to …

Exploring The Role Of Parents In Supporting Recreational Book Reading Beyond Primary School, Margaret K. Merga

Research outputs 2014 to 2021

Levels of aliteracy have been found to rise in adolescence, and this article explores the potential influence of parents on this trend. The views of adolescent students who took part in semi-structured interviews for the West Australian Study in Adolescent Book Reading (WASABR) provide insight into how parental support may change in the adolescent years. Student perspectives support earlier findings that there is an expiration of parental encouragement in many cases, though this sometimes occurs as children are avid readers and thus the support is no longer deemed necessary. The experiences of students with parents who provided continued encouragement into …

Young Australian Adults’ Reactions To Viewing Personalised Uv Photoaged Photographs, Lori L. Presti, Paul Chang, Myra F. Taylor

Research outputs 2014 to 2021

Background: Despite two nationwide sun-protection awareness campaigns, young Australian adults continue to sunbathe. Since their primary motivation for tanning is appearance enhancement, it may well be that campaigns that highlight the negative effects of tanning on appearance are more effective than campaigns that emphasise the health risks associated with sun exposure.Aims: This study aims to explore young adults’ reactions to viewing a photoaged photograph of the sun damage already visible in their facial image.Methods: Semi-structured interviews were conducted with seven females and three males aged 20-30 years. The interview transcripts were transcribed verbatim and were then subjected to Interpretive Phenomenological …

Contrasting Biogeochemical Cycles Of Cobalt In The Surface Western Atlantic Ocean, Gabrial Dulaquais, Marie Boye, Rob Middag, Stephanis Owens, Viene Puigcorbe, Ken Buesseler, Pere Masque´, Hein J. De Baar, Xavier Carton

Research outputs 2014 to 2021

Dissolved cobalt (DCo; 0.2μm; 10%) to the DCo stock of the mixed layer in the equatorial and north subtropical domains. Biotic and abiotic processes as well as the physical terms involved in the biogeochemical cycle of Co were defined and estimated. This allowed establishing the first global budget of DCo for the upper 100m in the western Atlantic. The biological DCo uptake flux was the dominant sink along the section, as reflected by the overall nutrient-type behavior of DCo. The regeneration varied widely within the different biogeochemical domains, accounting for 10% of the DCo-uptake rate in the subarctic gyre and …

Undergraduate Perceptions Of The Development Of Team-Working Skills, Denise Jackson, Ruth Sibson, Linda Riebe

Research outputs 2014 to 2021

Purpose: The ability to working effectively with others (WEWO) is critical yet industry continues to lament deficiencies in new graduates. Progress in developing this highly valued skill in undergraduates is impeded by a lack of conceptual clarity and evidence of how best to measure it, and a tendency to adopt an outcomes-focused, rather than process-oriented, approach. This paper aims to investigate undergraduate perceptions of how well a stand-alone employability skill development programme, operating in an Australian Business Faculty, is fostering the WEWO skill set and which pedagogical practices are considered to add most value. Design/methodology/approach: The study examines undergraduate perceptions …

A Day In The Park: Emerging Genre For Readers Of Aboriginal English, Ian G. Malcolm

Research outputs 2014 to 2021

Despite the fact that varieties of Aboriginal English are widely used in communication in Aboriginal communities across Australia, the use of Aboriginal English in writing has been limited. A significant genre for Aboriginal writers has been the autobiographical narrative. In most published narratives of this genre, Aboriginal English has not been widely used. This paper describes and discusses an autobiographical narrative composed by Aboriginal author Glenys Collard and published by the Western Australian Department of Training and Workforce Development in 2011 in which the only medium of narration (except for utterances by non-Aboriginal characters) is Aboriginal English. Analysis of this …

Solar Energy Harvesting Clear Glass For Building-Integrated Photovoltaics, Kamal Alameh, Mikhail Vasiliev, Ramzy Alghamedi, Mohammad Alam, V. Rosenberg

Research outputs 2014 to 2021

We propose and demonstrate the concept of an energy-harvesting clear glass panel based on the use of all-inorganic luminophores embedded into a lamination layer in conjunction with low-emissivity coatings and CIS solar cells. Most of the visible solar radiation is transmitted through the laminated glass panel while UV radiation is down-converted and guided together with a part of infrared radiation to the edges for conversion to electricity by solar cells integrated at the edges of the glass panel. Experimental results demonstrate that a 10cmx10cm energy-harvesting clear glass can pass about 70% of the visible solar radiation, block 90% of UV …

Principles Of Practice In Mental Health Assessment With Aboriginal Australians, Yolonda Adams, Neil M. Drew, Roz Walker

Research outputs 2014 to 2021

In this chapter, concepts and history of assessment and testing in the context of Aboriginal and Torres Strait Islander social and emotional wellbeing and mental health are discussed. Importantly, recently revised diagnostic guidelines and the National Practice Standards for the Mental Health Workforce 20131 and their appropriateness for meeting the distinctive needs of Aboriginal people are reviewed. Various assessment tools and measures that have been validated or proved appropriate for use with particular Aboriginal populations, i.e. youth, women and older people, are described. We conclude that practitioners need to be critically reflective in their role in assessment, and position themselves …

The Internet: Friend, Foe Or Target?, Jonathan D. James

Research outputs 2014 to 2021

In this concluding chapter, I give an overview of how the Internet, a byproduct of our times, is shaping our culture and society in profound ways. I note some of the major concerns and perils of the Internet age and I conclude by pointing out how and why certain countries are targeting the Internet in terms of increased regulation and surveillance.

Computer Science Concept Inventories: Past And Future, Cynthia Taylor, Daniel Zingaro, Leo Porter, Kevin C. Webb, C. B. Lee, Michael Clancy

Faculty & Staff Scholarship

Concept Inventories (CIs) are assessments designed to measure student learning of core concepts. CIs have become well known for their major impact on pedagogical techniques in other sciences, especially physics. Presently, there are no widely used, validated CIs for computer science. However, considerable groundwork has been performed in the form of identifying core concepts, analyzing student misconceptions, and developing CI assessment questions. Although much of the work has been focused on CS1 and a CI has been developed for digital logic, some preliminary work on CIs is underway for other courses. This literature review examines CI work in other STEM …

Bmp-2 Overexpression Augments Vascular Smooth Muscle Cell Motility By Upregulating Myosin Va Via Erk Signaling, Ming Zhang, Min Yang, Liping Liu, Wayne Bond Lau, Hai Gao, Mankun Xin, Lixiao Su, Jian Wang, Shujuan Cheng, Qian Fan, Jinghua Liu

Department of Emergency Medicine Faculty Papers

Background. The disruption of physiologic vascular smooth muscle cell (VSMC) migration initiates atherosclerosis development. The biochemical mechanisms leading to dysfunctional VSMC motility remain unknown. Recently, cytokine BMP-2 has been implicated in various vascular physiologic and pathologic processes. However, whether BMP-2 has any effect upon VSMC motility, or by what manner, has never been investigated. Methods. VSMCs were adenovirally transfected to genetically overexpress BMP-2. VSMC motility was detected by modified Boyden chamber assay, confocal time-lapse video assay, and a colony wounding assay. Gene chip array and RT-PCR were employed to identify genes potentially regulated by BMP-2. Western blot and real-time PCR …

Appalachian And Pacific Crest Trail Hikers: A Comparison Of Benefits And Motivations, Eddie Hill, Edwin Gómez, Marni Goldenberg, Barbara Freidt, Stephanie Fellows, Laura Hill

Human Movement Studies & Special Education Faculty Publications

The Appalachian Trail (AT) and Pacific Crest Trail (PCT) are two scenic trails named in the National Trails System Act of 1968. Recently, trails and footpaths have been used to promote such benefits as healthy lifestyles, sense of community, and an increased quality of life. The purpose of this study was to compare the motivations and benefits from hikers of the AT and the PCT. Grounded in Driver’s benefits model and means-end theory, and using an Internet questionnaire, 766 usable questionnaires were collected. Significant differences were found between AT and PCT users who: hike to prevent a worse health condition; …

Reviving Implied Confidentiality, Woodrow Hartzog

Faculty Scholarship

The law of online relationships has a significant flaw-it regularly fails to account for the possibility of an implied confidence. The established doctrine of implied confidentiality is, without explanation, almost entirely absent from online jurisprudence in environments where it has traditionally been applied offline, such as with sensitive data sets and intimate social interactions.

Courts' abandonment of implied confidentiality in online environments should have been foreseen. The concept has not been developed enough to be consistently applied in environments such as the Internet that lack obvious physical or contextual cues of confidence. This absence is significant because implied confidentiality could …