Digital Commons Network^™

Sleep Discrepancy And Cognitive Function In Community-Dwelling Older Adults, Nadia Soh, Stephanie R. Rainey-Smith, James D. Doecke, Rodrigo Canovas, Romola S. Bucks, Melissa Ree, Michael Weinborn

Research outputs 2022 to 2026

This was the first study to use cluster analysis to characterise sleep discrepancy (the discordance between self-reported and objective sleep) across multiple sleep parameters, in community-dwelling older adults. For sleep efficiency, negative discrepancy (the tendency to self-report worse sleep than objectively-measured) was associated with poorer memory, independent of insomnia severity, depressive symptoms and objective sleep. This suggests a unique role for sleep discrepancy as a possible risk factor for future cognitive decline, and warrants the need for further research.

Teacher Wellbeing And Teaching Excellence In Higher Education: Exploring The Interplay Through The Lens Of The Perma Framework, Anna Golab, Tom Barratt, Jaime Yong, Tanzim Afroz

Research outputs 2022 to 2026

Recognising the pivotal role of teacher wellbeing in fostering teaching excellence, this paper explores the intricate relationships in the context of higher education. Employing an abductive, qualitative methodology and expanding the use of the PERMA framework to in the realm of higher education, this paper investigates the associations between teachers' perceptions of excellence to five elements of wellbeing: positive emotions (P), engagement (E), relationships (R), meaning (M) and accomplishment (A). Drawing insights from a case study of an Australian business school, the findings of this paper reveal dynamic interactions among these elements. Contextual variations give rise to virtuous or vicious …

The Combined Role Of Sexual Selection And Socioeconomic Environment In Explaining Everyday Risk-Taking Behavior In Human Males, Hannah Goodman, Cyril C. Grueter, David A. Coall

Research outputs 2022 to 2026

Sexual selection theory predicts that males, especially in their prime reproductive years, are more risk-prone than females. Risk-taking is a means to convey mate quality or “good genes” to members of the opposite sex or competitive ability to members of the same sex. Therefore, risk-taking should be more common in the presence of potential mates (intersexual selection or female choice) or in the presence of male competitors (intrasexual selection or male–male competition). Risk-taking can also be situated within a life history/ecological perspective, according to which environmental unpredictability promotes more present-oriented and risky behavioral strategies. Therefore, people living in areas of …

Enhancing Nutrition Information Utilisation, Confidence, And Role Legitimacy And Adequacy Among Early Childhood Education Professionals Through Evidence-Based Online Training, Ruth Wallace, Ros Sambell, Shih Ching Fu, Johnny Lo, Elizabeth J. Cook, Amanda Devine

Research outputs 2022 to 2026

This study evaluated the effectiveness of an online short course based on the Health Promoting Schools Framework and specifically designed for Early Childhood Education and Care (ECEC) professionals. The short course aimed to enhance ECEC professionals’ nutrition knowledge, confidence, role legitimacy and adequacy to model healthy behaviours, teach healthy food habits and create health-promoting environments. Participants (n = 116) working at Australian ECEC services were assigned to control (n = 62) or intervention (n = 54) groups. Both groups completed a pre-intervention survey. The intervention group accessed the four-week course and completed the post-intervention survey. The control group completed a …

Methylene Blue Adsorption On Y-Zeolite As A Nano-Porous Adsorbent: Equilibrium And Kinetic Studies, Mehdi Narimani, Maryam Gonbadi, Mohammad Mahdi Zerafat

Research outputs 2022 to 2026

The elimination of dye pollutants from industrial wastewaters, notably from sectors such as textiles and dyeing, remains a pivotal aspect of pollution mitigation endeavours. This research introduces an innovative strategy employing Y zeolite as a nano-porous adsorbent for eliminating methylene blue (MB), a prevalent cationic dye. Y zeolite was synthesised via hydrothermal technique. Through methodical experimentation, the impact of temperature, contact time, concentration, pH and adsorbent quantity on removal efficiency were examined with optimal conditions achieving 93.83% MB removal. The synthesised Y zeolite underwent characterisation utilising diverse techniques, including SEM, TEM, XRD, BET, and FTIR, which elucidated the structural and …

Post-Stroke Lateropulsion In Australia And New Zealand: A Survey Investigating Current Knowledge, Priorities And Practice, Jessica Nolan, Angela Jacques, Barbara Singer

Research outputs 2022 to 2026

Background: Post-stroke lateropulsion is prevalent and associated with poor rehabilitation outcomes, but evidence to guide rehabilitation of affected stroke survivors is limited. Current post-stroke lateropulsion rehabilitation practice across Australia and New Zealand has not been previously described. Objectives: This study aimed to describe lateropulsion rehabilitation practice in Australia and New Zealand, determine clinicians,’ educators’ and researchers’ opinions about the need for educational resources to guide best-practice, and to identify current barriers to, and enablers of, optimal rehabilitation delivery. Methods: This cross-sectional survey was distributed to stroke rehabilitation clinicians, educators and researchers across Australia and New Zealand using Qualtrics. Data were …

Adaptive Crisis Management At The Operational Level: Responses To Covid-19 In The Australian Resources Sector, Michael M. Ajith, Andrei A. Lux, Tim Bentley, Michelle Striepe

Research outputs 2022 to 2026

The COVID-19 pandemic in 2020 significantly impacted Australia’s resources sector, particularly mining, oil, and gas industries, posing challenges for operational leaders. This study applied Adaptive Crisis Management Theory (ACMT) to understand how these leaders adapted during the crisis. Through interviews with 32 operational leaders, it was found that their roles evolved as crisis demands changed. Initially, they addressed immediate needs, then shifted focus to remote work facilitation and digital transformation, and finally emphasised recovery, trust, and resilience. These adaptations influenced leaders’ behaviours, highlighting the importance of flexibility in supporting employee wellbeing and organisational continuity during crises.

Career Resources And Securing Quality Work: Graduate Perspectives, Denise Jackson, Claire Lambert, Matalena Tofa, Ruth Bridgstock, Ruth Sibson

Research outputs 2022 to 2026

Empowering graduates to secure quality post-graduation employment is a key goal for higher education institutions and their students. University support in developing career resources may aid transition to work by enhancing social support and networks, fostering a strong sense of professional self, promoting career self-management, and instilling career confidence. Yet there lacks empirical understanding of these resources and the role they play, including how they interrelate, how they vary by personal characteristics, and how they are developed. This study examines how graduates fare in the labour market, characterises their career resources, and explores the relationship between career resources and graduate-level …

Clinical Is The Pinnacle: Nurse Academics' Perspectives And Opinions Of Their Students Undertaking Mental Health Clinical Placements, Lorna Moxham, Kim Foster, Brenda Happell, Richard Lakeman, Michael Hazelton, John Hurley

Research outputs 2022 to 2026

Clinical placements form an integral and important part of preregistration nursing student learning. The theory–practice gap has been identified as problematic, with clinical experience being a key strategy to address this. Despite this, the perceptions of nurse academics teaching preregistration mental health nursing regarding clinical placements have not been widely explored. To garner perspectives and experiences of mental health clinical placements from nurse academics teaching mental health nursing to preregistration nursing students. A descriptive qualitative study involving 19 nurse academics from 13 metropolitan and regional Australian universities, who were involved in the design and delivery of preregistration mental health nursing …

Ability In Physical Education – No, I Can’T Discuss It! Insights From Lower Secondary Physical Education Teachers In Western Australia, Jeffrey Giles, Dawn Penney, Justen O’Connor

Research outputs 2022 to 2026

Ability has been positioned as a crucial concept in the construction of a subject that is inclusive of and meaningful for all students. Almost two decades since Evans (2004) called on the field to re-engage in discourse concerning ability, how ability is conceptualised by physical education (PE) teachers remains relatively unexplored. Furthermore, relatively little is known about how understandings of ability are enacted through curriculum, pedagogy and assessment in PE. This research explored these issues with lower secondary PE teachers in Western Australia through self-recorded audio responses to two research questions. Data from 38 participants revealed the struggles that PE …

Submission To The Nsw Standing Committee On Social Issues Inquiry “Impacts Of Harmful Pornography On Mental, Emotional, And Physical Health”, Giselle Woodley, Lelia Green

Research outputs 2022 to 2026

Our submission is formed from a combined experience of decades of working with teens and more recently, the Australian Research Council funded project (DP190102435), Perceptions of harm from adolescents accessing online sexual content, which explored Australian teens and young people’s (aged 11-17) perspectives of Sexually Explicit Material (SEM) including pornography. Qualitative data was collected between 2021 to 2023, and involved 30 teen interviews, with another 19 interviews with teens occurring a year later (49 interviews in total), and four focus groups (n-18) to explore these issues further. 26 parents of these teens from 24 families were also interviewed, followed by …

Cards Against Everyday Sexisms, Mindy Blaise, Emily M. Gray, Jacqueline Ullman, Emma Fishwick, Georgia Beardman

Research outputs 2022 to 2026

This deck of cards has been created using direct quotes from participants who took part in a nation-wide survey about everyday sexisms in Australian Universities. For more information about the project see: www.everydaysexismsau.com

Investigating Falls Risk Awareness In Hospitals Using The Self-Awareness Of Falls Risk Measure (Safrm): Empirical Research Quantitative, Elissa Dabkowski, Simon J. Cooper, Jhodie Duncan, Karen Missen

Research outputs 2022 to 2026

Aim: The overarching aim of this study was to explore patients' falls risk awareness in hospitals using section A of the validated Self Awareness of Falls Risk Measure (SAFRM). Design: Descriptive cross-sectional study design. Setting: Three rural/regional hospitals in the State of Victoria, Australia. Methods: Using a purposive sampling strategy, patients were eligible to participate if aged ≥ 40 years, English-speaking, and have ambulatory capacity prior to hospital admission. Participants were excluded from the study if they returned a Standardised Mini-Mental State Examination (SMMSE) score < 18. Falls risk awareness data was collected from both patient and health professionals using section A of the SAFRM. Patient demographic data was collected from patient medical records. Results: A total of 77 patients (72.9 years ±11.2) and 58 health professionals were recruited. Patients had a significant difference in falls risk awareness when compared to their clinician (z = −2.08, p = 0.038). Regression analyses showed that patients were more likely to overestimate their falls risk if they used anticoagulant medication and if their highest education level was less than or equal year 11. An exploratory factor analysis (EFA) revealed a three-factor solution from section A of the SAFRM, which were labelled Physical Activity Awareness, Cognitive Awareness and Balance Awareness. Conclusions: There was a significant difference in patients' falls risk awareness compared to a health professional. The independent associations of variables with falls risk awareness, such as age, education level and medication use, further our understanding of the differences in falls risk awareness. The findings also establish that the 15-item section A SAFRM is a reliable and feasible falls risk perception measure for use in hospitals, with future research recommended to evaluate the proposed three-factor model with the addition of tailored hospital falls education. Implications for the Profession and/or Patient Care: The findings from this study establish a significant difference in patients' falls risk awareness compared to their health professional. Section A of the SAFRM is a reliable tool for nurses and other health professionals to establish the presence of a falls risk disparity. The ability to empirically measure this disparity and to determine an under- or overestimation of falls risk is a useful addition to clinical practice. The SAFRM facilitates a person-centred approach to falls prevention by providing opportunities for the clinician to collaborate with the patient and tailor fall prevention strategies. Impact: Problem: Inpatient falls in hospital settings. Main Findings: There was a significant difference in patients' falls risk awareness compared to a health professional. Section A of the Self-Awareness of Falls Risk measure is a reliable and feasible tool to identify under- or overestimation of falls risk perception in hospitals. Patients were more likely to overestimate their falls risk if they used anticoagulant medication and if their highest education level was less than year 11. The findings for a three factor-model Physical Activity Awareness, Cognitive Awareness and Balance Awareness could inform future hospital falls education. Impact: Registered nurses, health professionals, inpatients. Reporting Method: STROBE checklist for cross-sectional studies. Patient or Public Contribution: This study involved the collection of data from patient participants and registered nurses.

The Weapon Focus Effect On Memory For Male And Female Perpetrators, Faith Christel Aasen

Theses and Dissertations

Previous research on the weapon focus effect suggests that weapon presence causes reduced memory accuracy for perpetrator details due to weapons being surprising and unexpected. The unusualness hypothesis suggests that a stronger weapon focus effect should occur when the perpetrator defies typical gender stereotypes, such as a woman holding a gun. The current study sought to examine how the weapon focus effect impacts eyewitness memory for male and female perpetrators, specifically exploring the magnitude of the effect on female perpetrators. The current study further investigated whether the own gender bias attenuates the weapon focus effect on memory for female perpetrators. …

Comparative Analysis Of Lstm-Based And Traditional Hydrologic Models For River Discharge Prediction: A Case Study Of The Goose River, Adewale Ajao

Theses and Dissertations

Streamflow predictions are important in planning water resources and effective hydrological management. Physically based models such as the Hydrologic Engineering Center-Hydrologic Modeling System (HEC-HMS) have been used in the past for this purpose. Still, the use of machine learning models such as Long Short-Term Memory (LSTM) has been proven to complement the use of traditional models. This study compares the reliability performances of HEC-HMS and LSTM models to predict the streamflow of Goose River Watershed in North Dakota. The objective of the research is to perform a comprehensive comparative analysis between the performance of HEC-HMS and LSTM models to predict …

The Influence Of Active Galactic Nuclei (Agn) Feedback On Star Formation In Spiral Galaxies, Moreom Akter

Theses and Dissertations

We investigate the influence of Active Galactic Nuclei (AGN) feedback on star formation in spiral galaxies by analyzing a sample of 324 red and 273 blue spiral galaxies from 115 low-redshift galaxy clusters. The multi-wavelength dataset combines optical emission line data from the Sloan Digital Sky Survey (SDSS), X-ray luminosity from the Chandra X-ray & XMM-Newton observatories, and ultraviolet (UV) and infrared (IR) measurements from GALEX and WISE. Using diagnostic emission line ratios, we constructed Baldwin, Phillips, and Terlevich (BPT) diagrams to classify galaxies based on nuclear activity. Our analysis reveals that most of the red spirals have AGNs and …

Next-Gen Device For Uniform Cellular Migration Assay Execution, Nicholas M. Bittner

Theses and Dissertations

Cellular migration assays, particularly scratch assays, are pivotal in biomedical research for cell motility, wound healing, and metastasis. However, conventional scratch assays suffer from variability due to operator dependence, non-uniform scratch geometry, and a modified microenvironment that impacts reproducibility. This thesis presents the development and validation of a low-cost, 3D-printed device designed to standardize cellular migration assays. The device utilizes a spring mechanism and a biocompatible elastomer to create a uniform cellular exclusion zone without harming the surrounding cells. Through iterative prototyping and testing with MCF10A cell lines, the device demonstrated a significantly lower average standard deviation of length compared …

Evaluation Of Schlafen Family Proteins In Triple Negative Breast Cancer, Savannah Brown

Theses and Dissertations

This dissertation explores the role of Schlafen (SLFN) family proteins in Triple-Negative Breast Cancer (TNBC), a subtype known for its aggressive behavior and poor response to treatment. Through a series of studies, this dissertation examines the interplay between multiple SLFN proteins, chemotherapy resistance, and immune modulation, revealing the potential of SLFN12 as both a biomarker and therapeutic target for improving treatment outcomes, particularly in overcoming chemoresistance in TNBC.

Breast cancer, the most common cancer worldwide, includes various subtypes like TNBC, which lacks estrogen, progesterone, and HER2 receptors, making it resistant to conventional therapies. SLFN proteins, first discovered in mice, regulate …

Autonomous Corrosion Detection In Steel Structures Using Different Non-Contact Techniques, Amrita Das

Theses and Dissertations

Metallic corrosion is an electrochemical process that can occur due to the formation of aqueous adlayers on the metal surface. It is often described as reverse metallurgy, as corrosion drives refined metals back to their lowest energy state, namely an oxidized, ore-like form. Environmental factors that promote corrosion include precipitation, high humidity, and chemical condensation, which can result from the hygroscopic nature of pollutants deposited on the surface. There is a significant impact of metallic corrosion on the U. S. economy including infrastructure, transportation, utilities, production, and manufacturing. The total direct cost of corrosion in the United States has been …

Great Expectations: How Gender Assigned At Birth Shapes Viewpoint Based Perceptual Disparities In Gender-Diverse People, Adelyn Emter

Theses and Dissertations

The purpose of this study was to examine disparities between personal beliefs and perceived societal ideologies about earning gendered traits and maintaining masculinity and femininity, with a focus on gender-diverse perspectives and the influence of gender identity on responses to social research. The current study recruited 334 gender-diverse participants to compare Viewpoint and Gendered Trait based on participant Gender Assigned at Birth, using twelve statements about earning and maintaining masculinity and femininity. The Traditional Egalitarian Sex Role (TESR) Inventory and Social Dominance Orientation (SDO) Scale were used as covariates which significantly contributed to the model. As expected, societal belief scores …

Beyond The Game: Designing An Nil First-Year Seminar Through Thematic Analysis Of Division 1 Student-Athletes Perspectives, Laura Dimattia

Theses and Dissertations

The 2021 relaxation of Name, Image, and Likeness (NIL) regulations by the NCAA has transformed collegiate athletics, granting student-athletes the opportunity to profit from their personal brands. These changes deliver financial and personal advancement opportunities but introduce new challenges. Student-athletes encounter challenges in managing responsibilities related to athletics, academics, and commercial activities amid evolving NIL compliance requirements. Universities struggle to manage multiple pressures including compliance requirements and recruitment strategies along with challenges from the Transfer Portal.

This study explores the motivational factors behind student-athletes' engagement with NIL and their learning preferences through a qualitative approach. The researcher conducted in-depth interviews …

Gender-Based Perceptions Of Confronting Prejudice In The Classroom, Mary Hamilton

Theses and Dissertations

Disparities exist between men and women in academia at the faculty and student level. Academically, women are judged as being weaker and inferior, and many describe experiences of sexism, often within the classroom setting. Few studies have investigated the impact of an instructor confronting sexism in the classroom. The current study examined the effects of an instructor’s gender, student’s gender, and instructor’s confrontation decision on students’ perceptions of the instructor, classroom environment, and the moderating effect of self-reported sexism. Participants read one of four vignettes describing an act of sexism in the classroom where a male (or female) instructor confronts …

Exploring Geothermal Energy Development In The Deep Reservoirs Of The Williston Basin: An Integrated Analysis Using Empirical, Probabilistic, Numerical Simulation And Machine Learning Techniques, Emmanuel Gyimah

Theses and Dissertations

Geothermal energy, a renewable, clean, and abundant energy source, is gaining global attention as a key contributor to the transition towards a low-carbon economy. However, uncertainties in reservoir characterization and development risks hinder its widespread adoption, particularly in the Williston Basin. This study focuses on the Williston Basin, particularly the Red River and Deadwood formations, to explore the potential of deep geothermal reservoirs in North Dakota. The study integrates a multi-disciplinary technique in empirical, probabilistic, numerical simulation, and machine learning to reduce uncertainties and risks associated with geothermal energy exploration and development. Probabilistic methods (Parametric and Monte Carlo), incorporating geo-statistics, …

Inorganic Arsenite [I-As (Iii)] Represses Human Renal Progenitor Cell Characteristics And Induces Neoplastic-Like Transformation, Md Ehsanul Haque

Theses and Dissertations

Studies on populations exposed to inorganic arsenic (iAs) have shown an association between this particular exposure and the development of chronic kidney disease (CKD) and renal cell carcinoma (RCC). However, there are few studies addressing how acute exposure of the human kidney to iAs might lead to long-term alterations that might lead to CKD or RCC. This study’s hypothesis is that renal exposure to iAs might alter the renal cells responsible for the repair and regeneration of nephrons damaged by iAs exposure or other renal toxicants. The kidney possesses a minority epithelial cell population that co-express PROM1 and CD24 that …

Ai-Bms: Ai Battery Management System For Safe Uas Operations In High Electric And Magnetic Fields And Uncertain Conditions: Wind, Battery Drain, Temperature, And Payload, Tanzim Jim Hassan

Theses and Dissertations

Unmanned aerial systems/vehicles (UAS/UAVs) are increasingly utilized for inspecting high-voltage (HV) transmission (Tx) lines. However, operating in the vicinity of electric (E) and magnetic (H) fields can affect UAV control and battery performance. Pilots unfamiliar with high E/H field environments often struggle to accurately estimate remaining flight time, resulting in either premature mission terminations or crashes due to depleted batteries. To address these challenges, this thesis focuses on developing an intelligent Battery Management System (BMS) for UAVs to ensure safe and reliable surveillance operations under various uncertain conditions, such as wind gusts, temperature variations, E/H fields, battery drain, and payload …

Belongingness And Science Identity Of Underrepresented Students In Aerospace Sciences, Bella Hettich

Theses and Dissertations

Despite efforts to support underrepresented individuals—specifically those from racial, ethnic, and gender minority groups—they continue to face unique challenges that affect their belongingness in aerospace sciences, leading to issues with retention in educational programs and subsequent professional pathways. Such hindrances to personal achievement can also impede broader organizational goals. Addressing these challenges is critical, as supporting the success of underrepresented individuals fosters diverse perspectives, which are essential for driving innovation and maximizing organizational productivity. Just as importantly, ensuring that every individual, regardless of background, has access to opportunities and the support needed to succeed fulfills an ethical obligation. Upholding the …

Photometric Analysis Of Four Near-Earth Asteroids With A Convex Shape Model Of (25330) 1999 Kv4, Lucas James Hutton

Theses and Dissertations

Astrometric and photometric observations of asteroids provide information regarding their positions, rotation rates, axis of rotation, and shapes. Lightcurve inversion utilizes an asteroid’s change in brightness with respect to phase angle change, which maximizes ground-based observational data. This study investigated the rotational properties of four near-Earth asteroids (NEAs) with a single pole solution and convex shape model of (25330) 1999 KV4 using the lightcurve inversion method. Photometric observations were remotely obtained using the Skynet Robotic Telescope Network, andNOIRLAB’s Cerro-Tololo Inter-American Observatory’s (CTIO) 24” Ritchey-Chretien Prompt 3 Telescope. The data were calibrated using AstroImageJ software, and lightcurve analyses were performed using …

Nanoscale Frictional Properties Of Two-Dimensional Snse And Snse2 With Lateral Force Microscopy, Thomas Iken

Theses and Dissertations

In this study, we employed an atomic force microscopy-based lateral force microscopy technique to examine the nanoscale frictional characteristics of 2D SnSe and SnSe2 layers, and we compared these results with those of graphene, a commonly used solid lubricant. Our results revealed that both SnSe and SnSe2 layers exhibited superior lubricative performance compared to graphene with similar thicknesses. Experimental results were further substantiated by extensive Density Functional Theory calculations to understand the observed frictional properties of these materials.

Cisplatin-Induced Nephrotoxicity And Adaptive Responses In Renal Progenitor Cells: Molecular Insights From Transcriptomic And Proteomic Analyses, Eloho Ighofose

Theses and Dissertations

Cisplatin is a widely used chemotherapeutic agent known for its efficacy against various solid tumors, but its clinical utility is limited by dose-dependent nephrotoxicity. The renal proximal tubule, particularly its epithelial cell population, is highly susceptible to cisplatin-induced injury due to its role in solute transport and high metabolic activity. Recent advances suggest that renal progenitor cells play a key role in epithelial repair following nephrotoxic injury; however, the molecular mechanisms underlying their response to cisplatin remain poorly understood.This study investigates the impact of both acute and chronic cisplatin exposure on immortalized human renal progenitor cells (HRTPT, CD24⁺/CD133⁺) using a …

Thermally Induced Evolution Of The Cement Microannulus In Co2 Injection Wells, Jawad Ali Khan

Theses and Dissertations

Ensuring wellbore integrity during CO₂ injection is a critical challenge in Carbon Capture and Storage (CCS), as failures at the casing-cement and cement-formation interfaces can create potential leakage pathways. This dissertation presents a multi-scale, physics-based investigation into well integrity risks, integrating finite element analysis (FEA), thermal-mechanical-poroelastic modeling, and transient stress analysis to evaluate cement sheath stability, fracture-driven stress localization, and microannulus formation under various CCS conditions.

A key novelty of this research is the development of a fully coupled thermal-mechanical-poroelastic FEA framework using COMSOL Multiphysics, a renowned industry-standard software for multiphysics simulations. This model enables a dynamic, time-dependent assessment …