Digital Commons Network^™

Leveraging Finite-Precision Errors In Chaotic Systems For Enhanced Image Encryption, B. M. El-Den, Saad Aldosary, Haitham Khaled, Tarek M. Hassan, Walid Raslan

Research outputs 2022 to 2026

This research explores the application of chaotic systems in generating pseudo-random numbers for encryption protocols, offering a novel perspective on addressing the challenges posed by limited computer precision in cryptographic applications. Chaotic systems, while promising for encryption, often suffer from degradation in their chaotic properties when implemented on computers with finite precision. Previous studies have primarily aimed to mitigate this issue, with limited consideration of harnessing finite-precision errors as a potential source of randomness. In this study, we propose an innovative encryption method that leverages finite-precision errors within chaotic systems. The algorithm generates a keystream based on lower bound error …

Dismantling Pervasive Gender Stereotypes In Healthcare Leadership Contexts With An Ecological Systems Theory Approach, Andrei A. Lux, Nasim Salehi, Diarmuid Hurley, Elizabeth Emanuel

Research outputs 2022 to 2026

Leadership emergence is fraught with pervasive gender stereotypes, and women remain underrepresented in senior leadership roles, particularly in healthcare organisations. We apply ecological systems theory to explain how environmental factors enable or inhibit women’s leadership emergence in healthcare settings. We interviewed 17 senior female leaders in the Australian healthcare sector to explore how gender-related perceptions affected their leadership journeys. Five themes emerged that challenge existing narratives: men supported women’s advancement; women impeded other women’s progress; vulnerability was a leadership strength; ambitious women were ostracised; and women were ‘given’ leadership opportunities rather than actively pursuing them. By situating these findings within …

A Taste Of Research: Preliminary Insights From An Undergraduate Research Training Cadetship Project In A Western Australian University Offering Experiences Outside The Classroom, Caitlin Fox-Harding, Kristina Kendall, Tenielle Porter, Brianna Fleay, Shelley Beatty, Ruth Wallace

Research outputs 2022 to 2026

This paper assessed the impact of a Student Research Cadetship Program aimed at providing undergraduate students with extracurricular research opportunities within the School of Medical & Health Sciences at Edith Cowan University. This preliminary evaluation, comprising two studies, explored the outcomes, benefits, and challenges experienced by students and academic staff. Study 1 analysed outputs from cadetship projects between 2016-2023 (n= 80 students; 42 academics). Notably, cadets contributed to over 60 research outputs, with 30% of cadets transitioning to postgraduate studies following competition of the program. Study 2 focused specifically on the 2023 program, highlighting positive impacts on academic staff and …

Mining Through Pandemic Crisis: A Systematic Review Of The Impacts Of Covid-19 Management Strategies On Mining Industries In West Africa And Western Australia, Esther Ayaaba, Kwadwo Adusei-Asante, Victor Fannam Nunfam, Krassi Rumchev, Samuel Kofi Amponsah

Research outputs 2022 to 2026

The mining sector plays a crucial role in the economies of West Africa and Western Australia, contributing to GDP, employment, and foreign exchange earnings. However, the sector also faces environmental, social, and health challenges, including land and water degradation, human rights violations, and occupational hazards. The COVID-19 pandemic worsened these challenges, affecting aspects of the mining industry. This systematic review follows the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines for literature search and selection. PubMed and Google Scholar were searched for relevant articles published from 2019 to 2023. Inclusion criteria encompassed studies focusing on COVID-19 management strategies …

Examination Of The Reliability And Validity Of The Japanese Version Of The 10-Item Reflective Practice Questionnaire, Daichi Sugawara, Atsumi Iikura, Syohei Miyamoto, Akihiro Masuyama, Kanako Nakazawa, Keigo Hatto, Ayaka Matsumoto, Lon J. Van Winkle, Shane L. Rogers

Research outputs 2022 to 2026

While various self-administered instruments measure reflective practice, the Reflective Practice Questionnaire (RPQ) can be used across multiple professions. We evaluated the Japanese version of the 10-item Reflective Practice Questionnaire (RPQ-10-J). In Study 1, 300 Japanese interpersonal assistance professionals were surveyed, and the RPQ-10-J was found to conform to a single factor via confirmatory factor analysis. We also found evidence of high internal consistency and adequate test-re-test reliability. High internal consistency was replicated in Study 2. In Study 2, 83 and 80 practicing interpersonal assistance professionals were surveyed physically and online, respectively. Additionally, the RPQ-10-J was correlated with the Japanese version …

Characterizing The Extent And Nature Of Digital Food And Beverage Marketing In Singapore – A Descriptive Study, Xin Hui Chua, Clare Whitton, Stefanie Vandevijvere, Bridget Kelly, Rob M. Van Dam, Salome A. Rebello

Research outputs 2022 to 2026

Objective: To characterize the nature of digital food and beverage advertising in Singapore Setting: Food and beverage advertisements within 20 clicks on top 12 non-food websites and all posts on Facebook and Instagram pages of 15 major food companies in Singapore were sampled from January 1 to June 30, 2018. Design: Advertised foods were classified as being core (healthier), non-core or mixed-dishes (example burger) using the WHO nutrient profile model and national guidelines. Marketing techniques were assessed using published coding frameworks. Participants: NA Results: Advertisements (n=117) on the 12 non-food websites were largely presented as editorial content. Food companies posted …

The Impact Of Corporate Disclosure And Website Informativeness On Enhancing Corporate Governance And Performance, Ahmad Saiful Azlin Puteh Salin, Zubaidah Ismail, Malcolm Smith

Research outputs 2022 to 2026

This study aims to investigate how transparency affects the company’s performance. Transparency in corporate governance is crucial to prevent misconduct, encourage accountability, and integrity, and ultimately, enhance sustainable performance in businesses. In contrast, inadequate disclosure of information can lead to business scandals and fraud, diminishing trust in institutions, harming stakeholders, and adversely affecting the entire economy (Salin et al., 2019). The study measures transparency through firm disclosure policy and website informativeness. This study employs archival analysis of the annual reports of the top 500 publicly listed firms in Malaysia based on market capitalization. Nine items were created to assess the …

Traumatok - Tiktok Videos Relating To Trauma: Content Analysis, Alix Woolard, Rigel Paciente, Emily Munro, Nicole Wickens, Gabriella Wells, Daniel Ta, Joelie Mandzufas, Karen Lombardi

Research outputs 2022 to 2026

Background: Experiencing a traumatic event can significantly impact mental and emotional well-being. Social media platforms offer spaces for sharing stories, seeking support, and accessing psychoeducation. TikTok (ByteDance), a rapidly growing social media platform, is increasingly used for advice, validation, and information, although the content of this requires further study. Research is particularly needed to better understand TikTok content relating to trauma and the potential implications for young viewers, considering the distressing nature of the subject and the possibility of users experiencing vicarious trauma through exposure to these videos. Objective: This study aims to explore the content of trauma-related videos on …

Stakeholders' Perception On Sustainability Indicators For Urban Heritage Sites In Kuala Lumpur And George Town, Malaysia, Ken Ying Cho, Camelia Kusumo, Keith Kay Hin Tan, S. Mostafa Rasoolimanesh

Research outputs 2022 to 2026

Purpose: To manage heritage cities for locals' needs, a contextualized indicator to measure the sustainability of urban heritage is needed because it is often neglected. This study aims to identify the stakeholders’ perceptions on sustainability indicators of urban heritage sites in Kuala Lumpur and George Town, Malaysia. Design/methodology/approach: This study applied a qualitative method by interviewing stakeholders (governmental, experts and communities) who are involved in urban heritage sites. A thematic analysis is used to group the data patterns into themes. Findings: The existing site management and attention to heritage conservation are varied for both sites. The discussions of the stakeholders …

Summary Of Epidemiology, Prevention And Management Of Blood-Borne Viruses Experienced By Aboriginal And Torres Strait Islander Peoples, Australian Indigenous Healthinfonet

Research outputs 2022 to 2026

This Summary is based on the Review of epidemiology, prevention and management of blood-borne viruses experienced by Aboriginal and Torres Strait Islander peoples (2024).

It aims to provide a synthesis of key information on blood-borne viruses (BBVs) experienced by Aboriginal and Torres Strait Islander peoples in Australia, focusing primarily on hepatitis B virus, hepatitis C virus, and human immunodeficiency virus.

It covers: the historical, social and cultural context of Aboriginal and Torres Strait Islander peoples and BBVs the extent of BBVs, including incidence, prevalence, health service utilisation, hospitalisation, mortality, and burden of disease prevention and management of BBVs relevant programs, …

Parental Assessment Of Postsurgical Pain In Infants At Home Using Artificial Intelligence–Enabled And Observer-Based Tools: Construct Validity And Clinical Utility Evaluation Study, Fatos Sada, Paola Chivers, Sokol Cecelia, Sejdi Statovci, Kujtim Ukperaj, Jeffery Hughes, Kreshnik Hoti

Research outputs 2022 to 2026

Background: Pain assessment in the infant population is challenging owing to their inability to verbalize and hence self-report pain. Currently, there is a paucity of data on how parents identify and manage this pain at home using standardized pain assessment tools. Objective: This study aimed to explore parents’ assessment and intervention of pain in their infants at home following same-day surgery, using standardized pain assessment tools. Methods: This prospective study initially recruited 109 infant boys undergoing circumcision (same-day surgery). To assess pain at home over 3 days after surgery, parents using iOS devices were assigned to use the PainChek Infant …

Study Protocol For A Nested Process Evaluation Of A Complex Discharge Planning Intervention (Home Rehab) To Improve Participation After First-Stroke, Sandra Reeder, Mandy Stanley, Laura J. Jolliffe, Natasha A. Lannin

Research outputs 2022 to 2026

Introduction: Stroke is a leading cause of adult disability, and the transition from hospital to home can be fraught with challenges. The HOME Rehab trial is designed to address if better health outcomes for stroke survivors can be achieved with a contextually relevant and tailored occupational therapy discharge planning and support intervention. Process evaluations inform clinical trial findings and future scale up, as well as how to implement a successful intervention effectively into policy and practice. This paper describes the protocol we are using in the HOME Rehab process evaluation planning and activities.

Methods: Using a theoretically informed approach, mixed …

Advancing A Systems Perspective On Innovative Behavior, Stephen Demski

Doctoral Dissertations

"Engineering organizations pursue innovation in strategy, structure, processes, and the services and products offered to remain relevant and competitive. Identifying factors supporting or constraining innovative work behavior and recognizing the complexity of their interactions are vital to sustaining an innovative workforce, yet how factors interact has not been comprehensively studied.

Recognizing innovative work behavior as the output of a complex system of factors guided this study’s literature search that identified over one hundred individual, team, and organizational factors influencing innovative behavior, interviews of engineers to learn what factors are essential in their work environment, and Delphi survey to rank factors, …

Novel Uses Of Distributed Optical Fiber Sensing For Geo-Mechanical Monitoring, Samuel Vincent Nowak

Doctoral Dissertations

"Rock mass monitoring in underground excavations is crucial for ensuring workplace safety and efficiency. As mines become deeper and more complex, the need to monitor larger volumes of rock during mining becomes impractical with existing instruments due to high costs. Distributed Optical Fiber Sensing (DOFS) is a powerful technology with advantages like long sensor length, real-time measurement capabilities, ease of installation, low cost, and distributed measurement. However, its application in rock mass monitoring is limited, especially in the mining industry. This study addresses a major gap in DOFS technology, specifically the inability of long-range distributed optical fiber strain sensors to …

The Science Of Gravitational-Wave Sources And Beyond Compact Binary Coalescences, Yanyan Zheng

Doctoral Dissertations

"This work focuses on the field of gravitational-wave astronomy by extending the scope of detectable sources beyond compact binary coalescences, All the gravitational-wave detections so far come from compact binary coalescences. Focusing on core-collapse supernovae as promising sources for short gravitational-wave transients, this work reports optically targeted searches for gravitational-wave emitted by core-collapse supernovae during the third observing run of the LIGO and Virgo detectors. It also predicts the search sensitivity for the ongoing fourth and forthcoming fifth observing runs. Moreover, the work introduces a novel computational framework for testing the spatial distribution of binary black hole sources, allowing for …

Secure And Privacy-Preserving Federated Learning With Rapid Convergence In Leo Satellite Networks, Mohamed Elmahallawy

Doctoral Dissertations

"The advancement of satellite technology has enabled the launch of small satellites equipped with high-resolution cameras into low Earth orbit (LEO), enabling the collection of extensive Earth data for training AI models. However, the conventional approach of downloading satellite-related data to a ground station (GS) for training a centralized machine learning (ML) model faces significant challenges. Firstly, the transmission of raw data raises security and privacy concerns, especially in military applications. Secondly, the download bandwidth is limited, which puts a stringent limit on image transmissions to the GS. Lastly, LEO satellites have sporadic visibility with the GS, and orbit the …

Development Of A Comprehensive Multi-Factored Methodology For Identification Of Landslides In The Buffalo National River Of Arkansas, Abdurraouf Okok

Doctoral Dissertations

"In northern Arkansas's Springfield and Boston Mountain Plateaus, distinctive geomorphological landslide features have shown historical continuity. USGS topographic maps (1:24,000, 7.5-minute series) serve as valuable resources for studying terrain characteristics and hydrological patterns.

This study uses a manual mapping approach with high-resolution LiDAR data and geological maps in a GIS environment. The method identifies historic landslide features by analyzing anomalous topographic contour patterns overlaid on LiDAR-derived hillshade maps, revealing various mass movements along the Buffalo National River. Data from the Office of State Geologist and fieldwork reconnaissance were utilized to map older landslide features with high confidence. Some previously unrecognized …

Highly Dipole-Parallel Aligned Nonlinear Optical Organic Molecular Crystalline Materials: Rational Design, Experimental And Theoretical Studies Of Supramolecular Structures And Non-Covalent Interactions, Harmeet Singh Bhoday

Doctoral Dissertations

Highly dipole-parallel aligned donor-acceptor substituted organic molecules are attractive for a wide array of applications, including nonlinear optics. However, only a limited number of crystals are known to adopt polar non-centrosymmetric space groups. The concepts guiding the fabrication of these polar materials have been described. The study focused on unsymmetrical donor-acceptor substituted azines and butadiene's. An improved design over (MeO, Y)-azines led to the realization of three crystals perfectly aligned in dipole parallel orientation for (PhO, Y)-azines with Y = Cl, Br, I, and one nearly perfectly aligned crystal for Y = F (Paper I). The unique bonding properties associated …

Digital Technologies For Environmental Sustainability, Raimundo Macêdo, Marcelo Pias, Liwan Liyanage, David M. Cook, Yuko Murayama, Otthein Herzog, Gülgün Kayakutlu, David Kreps

Research outputs 2022 to 2026

Recognizing the immense challenges posed by climate change and aligning with the UN Sustainable Development Goals (SDGs), particularly SDG 13, which focuses on climate action, the International Federation for Information Processing (IFIP) established the Digital Technology and Climate Change Task Force in December 2022. The Task Force aims to identify opportunities to leverage digital technologies effectively in combating climate change and to provide recommendations for professionals and relevant institutions. Since its inception, the Task Force has met regularly. After conducting a scoping exercise and defining a taxonomy, a comprehensive questionnaire was distributed twice among IFIP stakeholders, namely, technical committees and …

Teacher Expectations Of Student Strategies For Algebra Problems, Vesife Hatisaru, Olivia Johnston, Julia Collins, Wendy Harmon

Research outputs 2022 to 2026

This paper investigates the expectations that a group of preservice secondary mathematics teachers had for how students would approach four particular algebra problems. Their responses to a set of open-ended items were content analysed. Findings show that the teachers ranged in the expectations that they held for their students. Some teachers expected their students would approach the problems with more sophisticated problem-solving strategies, but many of the teachers expected that the students would only use less desirable “guess-and-check” strategies. We believe teachers’ expectations for student strategies for problem-solving is a topic that warrants further investigation.

Secondary Mathematics Teachers’ Mathematical Competence, Vesife Hatisaru, Julia Collins, Steven Richardson, Constantine Lozanovski

Research outputs 2022 to 2026

Whilst educational goals in recent years for mathematics education are foregrounded the development of mathematical competencies, little is known about mathematics teachers’ competencies. In this study, a group of practising teachers were asked to solve an algebra problem, and their solutions were analysed to determine the competencies apparent (or, equally importantly, absent) in these solutions. The most demonstrated competencies were devising strategies and mathematising, whilst communication and reasoning were mostly missed. The research provides a detailed methodology on how mathematical competencies can be assessed in the context of problem solving.