Digital Commons Network^™

Implementing The Fast Full-Wave Electromagnetic Forward Solver Using The Deep Convolutional Encoder-Decoder Architecture, He Ming Yao, Lijun Jiang, Michael Ng

Electrical and Computer Engineering Faculty Research & Creative Works

In this communication, a novel deep learning (DL)-based solver is proposed for the electromagnetic forward (EMF) process. It is based on the complex-valued deep convolutional neural networks (DConvNets) comprising an encoder network and a corresponding decoder network with pixel-wise regression layer. The encoder network takes the incident EM wave and the contrast (permittivity) distribution of the object as the input. It channels the processed data into the corresponding decoder network to predict the total EM field due to the scatter of the input incident EM wave. The training of the proposed DConvNets is done using the simple synthetic dataset. Due …

A Machine Learning Approach To Support Neuromorphic Device Design And Microfabrication, Abdi Yamil Vicenciodelmoral, Md Mehedi Hasan Tanim, Feng Zhao, Xinghui Zhao

Electrical and Computer Engineering Faculty Research & Creative Works

Neuromorphic chips provide a potential solution for sustainable computing, as they attempt to mimic the neuronal architectures in human brain and show great potentials in reducing energy consumption in the order of magnitude and also improve the computational performance. However, the fabrication process for neuromorphic chips is costly and currently based on trial-and-error, which adds complexity to the design process. In this paper, we address these challenges by designing and developing machine learning guided microfabrication process for Resistive Random Access Memory (RRAM), which is a key device in neuromorphic chips. Specifically, our research makes the following contributions: 1) we successfully …

Calling Time: How To Remove Fossil Fuel Sponsorships From Sports, Arts & Events, Ashlee Morgan, Sophia Nimphius, Genevieve Stewart, Jennifer Rayner, Ashleigh Croucher, Simon Bradshaw

Research outputs 2022 to 2026

Sports, arts and major events are deeply embedded in the Australian way of life. Weekend matches, concerts and festivals bring us together - to cheer, to share pride and excitement, to feel connected to each other and to keep building our national story.

When we barrack for our beloved teams, discover the work of a new local artist or laugh until our cheeks hurt at a comedy show, we are taking part in a ritual that has shaped social and cultural life in Australia for generations.

Climate change – driven by burning coal, oil and gas – is putting all …

Dentists And Hepatitis B Vaccination – An In Vivo National Study, Ghassan Yared, Aynaa Al Khatib, Wassim Al Manhal, Nathalie Yared, Ronald Younes

International Arab Journal of Dentistry

Introduction: Hepatitis B continues to be a serious occupational concern for dental healthcare practitioners, with the possibility of transmission occurring during patient care practices. The incidence of hepatitis B amongst dentists, the factors raising their occupational risk, and the efficiency of vaccination programs in reducing this risk are all examined in this paper’s methodical evaluation of the body of prior research. This study addresses the important confluence of hepatitis B infection, occupational exposure, and vaccination status amongst dentists. In addition, it provides methods for improving the protection of dental professionals against hepatitis B infection by summarizing major findings and …

Spore-Forming Clostridium (Clostridioides) Difficile In Wastewater Treatment Plants In Western Australia, Jessica M. Chisholm, Papanin Putsathit, Thomas V. Riley, Su-Chen Lim

Research outputs 2022 to 2026

There is growing evidence that shows Clostridium (Clostridioides) difficile is a pathogen of One Health importance with a complex dissemination pathway involving animals, humans, and the environment. Thus, environmental discharge and agricultural recycling of human and animal waste have been suspected as factors behind the dissemination of Clostridium difficile in the community. Here, the presence of C. difficile in 12 wastewater treatment plants (WWTPs) in Western Australia was investigated. Overall, C. difficile was found in 90.5 % (114/126) of raw sewage influent, 48.1 % (50/104) of treated effluent, 40 % (2/5) of reclaimed irrigation water, 100 % (38/38) of untreated …

Heterogeneous Microstructure And Mechanical Behaviour Of Al-8.3fe-1.3v-1.8si Alloy Produced By Laser Powder Bed Fusion, S. J. Yu, P. Wang, H. C. Li, R. Setchi, M. W. Wu, Z. Y. Liu, Z. W. Chen, S. Waqar, Lai-Chang Zhang

Research outputs 2022 to 2026

The relationship between processing parameters, microstructure, and mechanical properties of Al-8.3Fe-1.3V-1.8Si alloy processed by laser powder bed fusion is seldom studied. Therefore, fully dense alloys with two parameters were selected to investigate this key issue. The results show that the alloy with low power and scanning speed (S200) shows fan-shell-shaped melt pools and laser tracks while another (S350) shows a deeper and wider melt pool. Both alloys obtain a heterogeneous microstructure without a secondary phase in melt pool (MP) and a nano-sized phase in melt pool boundary (MPB). The difference between solid-solution strengthening and Orowan strengthening in MP and MPB …

Conceptualising Wellbeing For Australian Aboriginal Lgbtqa+ Young People, Shakara Liddelow-Hunt, Ashleigh Lin, James H. L. Hill, Kate Daglas, Braden Hill, Yael Perry, Mirella Wilson, Bep Uink

Research outputs 2022 to 2026

It is likely that young people who are both Aboriginal and Torres Strait Islander and LGBTQA+ would be at increased risk for poor mental health outcomes due to the layered impacts of discrimination they experience; however, there is very little empirical evidence focused on the mental health and wellbeing of Aboriginal and Torres Strait Islander LGBTQA+ young people. The current study represents a qualitative exploration of wellbeing among Aboriginal LGBTQA+ young people. This study consisted of semi-structured interviews and focus groups with Aboriginal LGBTQA+ young people aged 14–25 years old in the Perth metropolitan area of Western Australia. Thematic analysis …

Consumer Behavior Analysis On Sales Process Model Using Process Discovery Algorithm For The Omnichannel Distribution System, Ferra A. Tridalestari, Mustafid, Ferry Jie

Research outputs 2022 to 2026

Currently, Omnichannel distribution services are experiencing very rapid development around the world. In the Omnichannel distribution services, each existing sales channel will be connected to each other through integration capabilities so that no channels are left neglected. This is able to provide the best experience for consumers when shopping both online through mobile devices, laptops, and in physical stores. But on the other hand, this creates problems for business people who develop Omnichannel services. On the one hand, it facilitates the marketing process, but on the other hand, business people have difficultyreading the behavior of consumers who use Omnichannel distribution …

Mapping The Research Trends On Social Media In The Hospitality Sector From 2010 To 2020, Eunjung Kim, Alexander Rolfe Best, Kijung Choi

Research outputs 2022 to 2026

Purpose: This study undertakes a systematic review of the literature to gain insight into existing studies on hospitality in social media and provide an update on current trends and themes in scholarship. Design: This study employs the systematic literature review to identify, evaluate, and synthesize the existing literature. Methodology: A total of 165 papers published between 2010–2020 were examined using content analysis and Leximancer. Approach: This review uses a hybrid review structure that incorporates structured reviews and narrative elements supported by Leximancer analysis. Findings: The review highlights the theories and methods used, research fields and perspectives, and key research topics …

Global Uncertainty And Economic Growth–Evidence From Pandemic Periods, Deepa Bannigidadmath, M. H. A. Ridhwan, Fiskara Indawan

Research outputs 2022 to 2026

This paper investigates whether global uncertainty predicts economic growth rates using a global sample of 136 countries. We use the panel regression model and find strong evidence that global uncertainty negatively predicts the economic growth rate. Further, the negative impact of global uncertainty on economic growth rates is amplified during pandemic periods versus non-pandemic periods. Our main findings hold after a range of robustness tests.

Biofilm Formation On The Surface Of Monazite And Xenotime During Bioleaching, Arya Van Alin, Melissa K. Corbett, Homayoun Fathollahzadeh, M. Christian Tjiam, William D. A. Rickard, Xiao Sun, Andrew Putnis, Jacques Eksteen, Anna H. Kaksonen, Elizabeth Watkin

Research outputs 2022 to 2026

Microbial attachment and biofilm formation is a ubiquitous behaviour of microorganisms and is the most crucial prerequisite of contact bioleaching. Monazite and xenotime are two commercially exploitable minerals containing rare earth elements (REEs). Bioleaching using phosphate solubilizing microorganisms is a green biotechnological approach for the extraction of REEs. In this study, microbial attachment and biofilm formation of Klebsiella aerogenes ATCC 13048 on the surface of these minerals were investigated using confocal laser scanning microscopy (CLSM) and scanning electron microscopy (SEM). In a batch culture system, K. aerogenes was able to attach and form biofilms on the surface of three phosphate …

Conife-Layered Double Hydroxide Decorated Co-N-C Network As A Robust Bi-Functional Oxygen Electrocatalyst For Zinc-Air Batteries, Yasir Arafat, Yijun Zhong, Muhammad R. Azhar, Mohammad Asif, Moses O. Tadé, Zongping Shao

Research outputs 2022 to 2026

Rechargeable zinc-air batteries (ZABs) are cost-effective energy storage devices and display high-energy density. To realize high round-trip energy efficiency, it is critical to develop durable bi-functional air electrodes, presenting high catalytic activity towards oxygen evolution/reduction reactions together. Herein, we report a nanocomposite based on ternary CoNiFe-layered double hydroxides (LDH) and cobalt coordinated and N-doped porous carbon (Co-N-C) network, obtained by the in-situ growth of LDH over the surface of ZIF-67-derived 3D porous network. Co-N-C network contributes to the oxygen reduction reaction activity, while CoNiFe-LDH imparts to the oxygen evolution reaction activity. The rich active sites and enhanced electronic and mass …

Covid-19 In Western Australia: ‘The Last Straw’ And Hopes For A ‘New Normal’ For Parents Of Children With Long-Term Conditions, Stephanie Smith, Mary Tallon, James Smith, Lauren Jones, Evalotte Mörelius

Research outputs 2022 to 2026

Background: Children with long-term conditions are vulnerable due to the treatments required for their conditions. Since the start of the coronavirus disease 2019 (COVID-19) pandemic, Western Australians experienced restrictions that changed daily life activities but were able to return to some of their previous routines due to the restrictions. Aim: The study explored the stress experiences of parents caring for children with long-term conditions during COVID-19 in Western Australia. Design and Participants: The study was codesigned with a parent representative caring for children with long-term conditions to ensure essential questions were targeted. Twelve parents of children with various long-term conditions …

The Long-Term Impact Of Covid-19 On Nursing: An E-Panel Discussion From The International Network For Child And Family Centred Care, Mandie Jane Foster, Julie Blamires, Sarah Neill, Imelda Coyne, Guðrún Kristjánsdóttir, Veronica D. Feeg, Ann Marie Paraszczuk, Mohammad Al-Motlaq

Research outputs 2022 to 2026

Aim: To explore the International Network for Child and Family Centred Care (INCFCC) members' experiences and views on the long-term impact of COVID-19 on the nursing workforce. Background: On the 11 March 2020, the World Health Organization declared COVID-19 a global pandemic. While some countries adopted a herd immunity approach, others imposed stricter measures to reduce the transmission of the virus. Hospitals in some countries faced an avalanche of extremely sick admissions, whereas others experienced an early surge in cases or were able to control the spread. Design: Discursive paper. Methods: A web-based survey was e-mailed to 63 INCFCC members …

Performance Analysis Of Two Typical Greenhouse Lettuce Production Systems: Commercial Hydroponic Production And Traditional Soil Cultivation, Lichun Wang, Songrui Ning, Wengang Zheng, Jingyu Guo, Youli Li, Yinkun Li, Xiaoli Chen, Alon Ben-Gal, Xiaoming Wei

Research outputs 2022 to 2026

Introduction: Due to the shortage of land and water resource, optimization of systems for production in commercial greenhouses is essential for sustainable vegetable supply. The performance of lettuce productivity and the economic benefit in greenhouses using a soil-based system (SBS) and a hydroponic production system (HPS) were compared in this study. Methods: Experiments were conducted in two identical greenhouses over two growth cycles (G1 and G2). Three treatments of irrigation volumes (S1, S2, and S3) were evaluated for SBS while three treatments of nutrient solution concentration (H1, H2, and H3) were evaluated for HPS; the optimal levels from each system …

Re-Enactment As Conversation: Yoshiko Shimada’S Becoming A Statue Of A Japanese Comfort Woman, Vahri Mckenzie, Jen Webb

Research outputs 2022 to 2026

‘Since Plotinus’, writes Joseph Tanke (2019, p. 486), ‘Western art has been consecrated to beauty, and beautiful art has been understood as the achievement of good form’. But alongside this interest in beauty and form, art has been committed to politics and perspectives, equity and rights. Consequently, and particularly since the start of the modern era, artists frequently initiate or participate in ‘difficult conversations’. . . .

Development Of A Tool To Identify Barriers And Enablers To Practice Innovation In Midwifery: A Participatory Action Research Study, Sara D. Davis, Sara Bayes, Sadie Geraghty

Research outputs 2022 to 2026

Introduction: Transferring research evidence into midwifery practice is fraught with challenges and obstacles. Implementation tools can streamline the process and are most effective when they are discipline-specific; however, there are currently no midwifery specific implementation tools. The aim of this study was to develop a midwifery specific tool to identify barriers and enablers to evidence-informed practice change within the clinical setting. Methods: Participatory action research methodology was employed to ensure potential end-users contributed to content and format of the tool. Purposeful sampling ensured participants were selected from a range of midwifery practice settings in Western Australia and the United Kingdom. …

A Model For Children’S Digital Citizenship In India, Korea, And Australia: Stakeholder Engagement Principles, Emma Jayakumar, Kylie Stevenson, Harrison See, Yeonghwi Ryu

Research outputs 2022 to 2026

This white paper communicates research activities and findings investigating digital safety and digital citizenship through multistakeholder collaborations in three countries—India, South Korea, and Australia. Performed by an Edith Cowan University-based research team from the ARC Centre of Excellence for the Digital Child, supported by the LEGO Group, this research additionally responds to many recent policy and practice reviews arguing for institutional and policy engagement in the Asia Pacific (APAC) that build children’s digital safety, literacy and citizenship. These include the UNESCO data-driven report, Digital Kids Asia Pacific (DKAP): Insights into children’s digital citizenship (UNESCO, 2019), an earlier UNESCO review of …

Final Report June 2023: Research Impact Evidence Scheme - Research Impact: Dr. Helen Adam, Maria Enriquez-Watt, Helen Adam

Research outputs 2022 to 2026

This research addressed the question: What is the impact of the research of Dr. Helen Adam into the culturally responsive use of diverse literature on practitioners, school communities, policy makers and the wider community?

Key Findings:

• The primary beneficiaries of Adam’s work include policy makers, educational professionals & consultants, academics, teacher trainers, and librarians.
• The secondary beneficiaries of Adam’s research include school children and their families, school communities and the wider community.
• Adam’s research is of pervasive and profound significance in educational sectors and is rapidly becoming of global significance.
• Adam’s research is transformative and impacts on the lives of …

Going Beyond: Cyber Security Curriculum In Western Australian Primary And Secondary Schools. Final Report, Nicola F. Johnson, Ahmed Ibrahim, Leslie Sikos, Marnie Mckee

Research outputs 2022 to 2026

There is no doubt cyber security is of national interest given the rife nature of cyber crime and the alarming increase of victims who have endured identify theft, fraud and scams. Curriculum within K-12 schools tends to be fixed and any modifications are subject to extensive consultation within a prolonged review cycle. Therefore, this report has gone beyond curriculum to explore the potential of national awareness campaigns and dynamic digital cyber security licences as alternative possibilities for instigation. The role of leaders in various school sectors and systems is critical for a successful roll out. This final report culminates from …

The Role Of Negative Affects As Mediators In The Relationship Between Stress And Mental Health In Ecuadorian Adolescents, Rodrigo Moreta-Herrera, Doris Zumba-Tello, Jaisalmer De Frutos-Lucas, Stefanía Llerena-Freire, Alexandra Salinas-Palma, Almudena Trucharte-Martínez

Research outputs 2022 to 2026

Background: Stress and negative emotions have adverse consequences for the mental health of adolescents, an area that deserves further examination. These attributes are associated with each other and regularly interact in different ways. The way they exert an influence can be both direct and indirect, so the general objective is to elucidate the potential mediating effect of negative affects in the relationship between stress and mental health in Ecuadorian adolescents. Participants and procedure: An explanatory and mediation design based on structural equation modeling (SEM) was applied with 1154 high school students from Ecuador (67.7% women) aged 14 to 19 years …

‘Keep The Music Going’: How The Isolation Tour 2020 Maintained Community And Cultural Connectedness During The 2020 Covid-19 Lockdown In Western Australia, Brigitta Scarfe, Amy Budrikis, Clint Bracknell

Research outputs 2022 to 2026

The COVID-19 pandemic and subsequent social isolation measures had a profound impact on communities worldwide. In regional and remote Western Australia, the use of online platforms has become increasingly important for maintaining social and emotional well-being. This article examines the role of ‘The Isolation Tour 2020’ Facebook page in providing a lifeline for its mostly Aboriginal audience to stay connected with culture, Country, and one another during the 2020 COVID-19 lockdown in Western Australia. The authors conducted an in-depth interview with one of the administrators of the page and supplemented this with a thematic analysis of publicly available Facebook data. …

How “Open” Are Australian Museums? A Review Through The Lens Of Copyright Governance, Paul L. Arthur, Lydia Hearn, Isabel Smith, Nikos Koutras

Research outputs 2022 to 2026

Museums are increasingly employing innovative digital techniques to curate, link, and market collections, enabling new kinds of public engagement to better connect with popular culture. By embracing contemporary modes of delivery to open access to their collections, museums are signalling a drive toward greater democratisation of knowledge and information through increased interaction and accessibility. Yet with this has come a series of copyright and legal complexities. This paper reviews current copyright barriers for museums in Australia and examines how international examples offer potential models and ways forward. The authors conclude that recent copyright modernisation reviews offer the museum sector an …

Investigating Pre-Professional Dancer Health Status And Preventative Health Knowledge, Joanna Nicholas, Sara Grafenauer

Research outputs 2022 to 2026

Introduction: Dance is a highly demanding physical pursuit coupled with pressure to conform to aesthetic ideals. Assessment of health status and preventative health knowledge of pre-professional dancers may help inform educational strategies promoting dancers’ health and career longevity. The aim of this research was to establish a baseline understanding of dance students at a single pre-professional institution based on metrics focused on current health, nutrition, lifestyle, and wellbeing while also gauging knowledge of longer-term health implications. Methods: Adopting a cross-sectional study design, the Dance-Specific Energy Availability Questionnaire was tailored for Australian participants and administered online. Results: The response rate was …

Ketone Bodies Mediate Alterations In Brain Energy Metabolism And Biomarkers Of Alzheimer’S Disease, Matin Ramezani, Malika Fernando, Shaun Eslick, Prita R. Asih, Sina Shadfar, Ekanayaka M. S. Bandara, Heidi Hillebrandt, Silochna Meghwar, Maryam Shahriari, Pratishtha Chatterjee, Rohith Thota, Cintia B. Dias, Manohar L. Garg, Ralph N. Martins

Research outputs 2022 to 2026

Alzheimer’s disease (AD) is the most common form of dementia. AD is a progressive neurodegenerative disorder characterized by cognitive dysfunction, including learning and memory deficits, and behavioral changes. Neuropathology hallmarks of AD such as amyloid beta () plaques and neurofibrillary tangles containing the neuron-specific protein tau is associated with changes in fluid biomarkers including A , phosphorylated tau (p-tau)-181, p-tau 231, p-tau 217, glial fibrillary acidic protein (GFAP), and neurofilament light (NFL). Another pathological feature of AD is neural damage and hyperactivation of astrocytes, that can cause increased pro-inflammatory mediators and oxidative stress. In addition, reduced brain glucose metabolism and …

The Effect Of Acute Exercise On Objectively Measured Sleep And Cognition In Older Adults, Kelsey R. Sewell, Nathan D. W. Smith, Stephanie R. Rainey-Smith, Jeremiah Peiffer, Hamid R. Sohrabi, Kirk I. Erickson, Belinda M. Brown

Research outputs 2022 to 2026

Background: Exercise can improve cognition in aging, however it is unclear how exercise influences cognition, and sleep may partially explain this association. The current study aimed to investigate whether objectively measured sleep mediates the effect of an acute exercise intervention on cognition in older adults. Methods: Participants were 30 cognitively unimpaired, physically active older adults (69.2 ± 4.3 years) with poor sleep (determined via self-report). After a triple baseline cognitive assessment to account for any natural fluctuation in cognitive performance, participants completed either a single bout of 20-minutes of high intensity exercise on a cycle ergometer, or a control condition, …

Development Of A Scoring Tool For Australian Rural Food Retail Environments, Tracy L. Schumacher, Carissa A. Alderton, Leanne J. Brown, Susan Heaney, Laura Alston, Katherine Kent, Stephanie L. Godrich

Research outputs 2022 to 2026

Current tools scoring the healthiness of food retail outlets do not reflect outlets found in rural locations. This study aimed to adapt pre-existing Australian scoring tools to represent non-metropolitan areas. Rural nutrition experts were identified, and a modified Delphi technique was used to adapt two pre-existing, food-scoring tools in five iterative stages. Stages included identifying all relevant outlets, providing a description and score for each, ensuring consistency between outlet scores and pre-existing, metro-centric tools, and providing instructions for correct use. Six rural nutrition experts were identified and engaged in the modified Delphi technique. The final tool consisted of 12 categories …

Changes In Parental Anxiety And Intention To Demand Antibiotics: A Longitudinal Study Among Parents During The Covid-19 Pandemic, Aaron L. Alejandro, Mieghan Bruce, Wei W. C. Leo

Research outputs 2022 to 2026

Aims: Assessing the effects of the COVID-19 pandemic on parental anxiety and preferences for antibiotic treatment can help inform antibiotic stewardship strategies. Therefore, this study aimed to examine COVID-19 pandemic-related changes in parental anxiety levels, their intentions to demand antibiotics and frequencies of practising preventative behaviours. Design: This longitudinal quantitative study compared two groups of parents, those from Victoria and Western Australia, who experienced high and low COVID-19 risk, respectively. Methods: Participants were recruited through an online panel to complete three waves of surveys between October 2020 and August 2021. Anxiety scores and frequency of preventative behaviours were analysed using …

Clinical Practice Guideline For Best Practice Management Of Pediatric Patients By Chiropractors: Results Of A Delphi Consensus Process, Genevieve Keating, Cheryl Hawk, Lyndon Amorin-Woods, Deisy Amorin-Woods, Sharon Vallone, Ronald Farabaugh, Angela Todd, Randy Ferrance, Jessie Young, Stephanie O. Bhogal, Helen Sexton, Helen Alevaki, Joyce Miller, Gregory Parkin-Smith, Alec Schielke, Andrew Robinson, Robyn Thompson

Research outputs 2022 to 2026

Objective: To build upon existing recommendations on best practices for chiropractic management of children by conducting a formal consensus process and best evidence synthesis. Design: Best practice guide based on recommendations from current best available evidence and formal consensus of a panel of experienced practitioners, consumers, and experts for chiropractic management of pediatric patients. Methods: Synthesis of results of a literature search to inform the development of recommendations from a multidisciplinary steering committee, including experts in pediatrics, followed by a formal Delphi panel consensus process. Results: The consensus process was conducted June to August 2022. All 60 panelists completed the …

Survey Of Attitudes Toward Performing And Reflecting On Required Team Service-Learning (Sasl): Psychometric Data And Reliability/Validity For Healthcare Professions Students In Preclinical Courses, Lon J. Van Winkle, Shane L. Rogers, Bradley O. Thornock, Brian D. Schwartz, Alexis Horst, Jensen A. Fisher, Nicole Michels

Research outputs 2022 to 2026

Purpose: Previously we assessed healthcare professional students’ feelings about team-based learning, implicit bias, and service to the community using an in-house paper survey. In this study, we determined whether this survey is a reliable and valid measure of prospective medical students’ attitudes toward required service-learning in an Immunology course. To our knowledge, no published questionnaire has been shown to be dependable and useful for measuring such attitudes using only eight survey items. Methods: Fifty-eight prospective medical students in Colorado (CO) and 15 in Utah (UT) completed the same Immunology course using remote technology. In addition to the usual course content, …