Digital Commons Network^™

Biometric Security: A Novel Ear Recognition Approach Using A 3d Morphable Ear Model, Md Mursalin, Mohiuddin Ahmed, Paul Haskell-Dowland

Research outputs 2022 to 2026

Biometrics is a critical component of cybersecurity that identifies persons by verifying their behavioral and physical traits. In biometric-based authentication, each individual can be correctly recognized based on their intrinsic behavioral or physical features, such as face, fingerprint, iris, and ears. This work proposes a novel approach for human identification using 3D ear images. Usually, in conventional methods, the probe image is registered with each gallery image using computational heavy registration algorithms, making it practically infeasible due to the time-consuming recognition process. Therefore, this work proposes a recognition pipeline that reduces the one-to-one registration between probe and gallery. First, a …

Revisiting The Interval And Fuzzy Topsis Methods: Is Euclidean Distance A Suitable Tool To Measure The Differences Between Fuzzy Numbers?, Hosein Arman, Abdollah Hadi-Vencheh, Reza Kiani Mavi, Mehdi Khodadadipour, Ali Jamshidi

Research outputs 2022 to 2026

Euclidean distance (ED) calculates the distance between n-coordinate points that n equals the dimension of the space these points are located. Some studies extended its application to measure the difference between fuzzy numbers (FNs).This study shows that this extension is not logical because although an n-coordinate point and an FN are denoted the same, they are conceptually different. An FN is defined by n components; however, n is not equal to the dimension of the space where the FN is located. This study illustrates this misapplication and shows that the ED between FNs does not necessarily reflect their difference. We …

Cerebrospinal Fluid Levels Of Fatty Acid–Binding Protein 3 Are Associated With Likelihood Of Amyloidopathy In Cognitively Healthy Individuals, Kunal Dhiman, Victor L. Villemagne, Christopher Fowler, Pierrick Bourgeat, Qiao-Xin Li, Steven Collins, Christopher C. Rowe, Colin L. Masters, David Ames, Kaj Blennow, Henrik Zetterberg, Ralph N. Martins, Veer Gupta

Research outputs 2022 to 2026

Introduction: Fatty acid–binding protein 3 (FABP3) is a biomarker of neuronal membrane disruption, associated with lipid dyshomeostasis—a notable Alzheimer's disease (AD) pathophysiological change. We assessed the association of cerebrospinal fluid (CSF) FABP3 levels with brain amyloidosis and the likelihood/risk of developing amyloidopathy in cognitively healthy individuals. Methods: FABP3 levels were measured in CSF samples of cognitively healthy participants, > 60 years of age (n = 142), from the Australian Imaging, Biomarkers & Lifestyle Flagship Study of Ageing (AIBL). Results: FABP3 levels were positively associated with baseline brain amyloid beta (Aβ) load as measured by standardized uptake value ratio (SUVR, standardized β …

Exploring Discordant Low Amyloid Beta And High Neocortical Tau Positron Emission Tomography Cases, Natasha Krishnadas, Vincent Doré, Simon M. Laws, Tenielle Porter, Fiona Lamb, Svetlana Bozinovski, Victor L. Villemagne, Christopher C. Rowe

Research outputs 2022 to 2026

Introduction: Neocortical 3R4R (3-repeat/4-repeat) tau aggregates are rarely observed in the absence of amyloid beta (Aβ). 18F-MK6240 binds specifically to the 3R4R form of tau that is characteristic of Alzheimer's disease (AD). We report four cases with negative Aβ, but positive tau positron emission tomography (PET) findings. Methods: All Australian Imaging, Biomarkers and Lifestyle study of aging (AIBL) study participants with Aβ (18F-NAV4694) and tau (18F-MK6240) PET scans were included. Centiloid < 25 defined negative Aβ PET (Aβ–). The presence of neocortical tau was defined quantitatively and visually. Results: Aβ– PET was observed in 276 participants. Four of these participants (one cognitively unimpaired [CU], two mild cognitive impairment [MCI], one AD) had tau tracer retention in a pattern consistent with Braak tau stages V to VI. Fluid biomarkers supported a diagnosis of AD. In silico analysis of APP, PSEN1, PSEN2, and MAPT genes did not identify relevant functional mutations. Discussion: Discordant cases were infrequent (1.4% of all Aβ– participants). In these cases, the Aβ PET ligand may not be detecting the Aβ that is present.

Plasma P-Tau181/Aβ1-42 Ratio Predicts Aβ-Pet Status And Correlates With Csf-P-Tau181/Aβ1-42 And Future Cognitive Decline, Christopher J. Fowler, Erik Stoops, Stephanie R. Rainey-Smith, Eugeen Vanmechelen, Jeroen Vanbrabant, Nele Dewit, Kimberley Mauroo, Paul Maruff, Christopher C. Rowe, Jurgen Fripp, Qiao-Xin Li, Pierrick Bourgeat, Steven J. Collins, Ralph N. Martins, Colin L. Masters, James D. Doecke

Research outputs 2022 to 2026

Background: In Alzheimer's disease (AD), plasma amyloid beta (Aβ)1-42 and phosphorylated tau (p-tau) predict high amyloid status from Aβ positron emission tomography (PET); however, the extent to which combination of these plasma assays can predict remains unknown. Methods: Prototype Simoa assays were used to measure plasma samples from participants who were either cognitively normal (CN) or had mild cognitive impairment (MCI)/AD in the Australian Imaging, Biomarkers and Lifestyle (AIBL) study. Results: The p-tau181/Aβ1-42 ratio showed the best prediction of Aβ-PET across all participants (area under the curve [AUC] = 0.905, 95% confidence interval [CI]: 0.86–0.95) and in CN (AUC = …

International Professional Skills: Interdisciplinary Project Work, Thomas Mejtoft, Helen Cripps, Christopher Blöcker

Research outputs 2022 to 2026

Higher education should provide learning situations that prepare students for a future profession and make them world-ready. This paper reports insights from an international interdisciplinary collaborative project aiming to create learning experiences that are close to a professional situation. The collaboration setup simulates a setting of a digital agency with a development team in Sweden and a marketing team in Australia working together to solve a task. The collaborative project has been active since 2017, completing its fifth iteration in 2021. Postcourse survey results show that the students felt that a real situation was created with a high level of …

Validation Of The Multi-Dimensional Student Perceptions Of School Questionnaire (Mspsq): Early Findings And Next Steps, Mary-Anne Macdonald, Eyal Gringart

Research outputs 2022 to 2026

Research in Indigenous and non-Indigenous education in Australia over the last two decades has begun to turn towards quantitative methods of understanding various factors affecting student outcomes. The current article presents a new measurement instrument, the Multi-Dimensional Student Perceptions of School Questionnaire (MSPSQ), validated with a moderate-sized sample of secondary students in Western Australia (Indigenous: n = 244; non-Indigenous: n = 258; not stated: n = 34). The MSPSQ aimed to measure student perceptions of select experiences within the family, community and school which may factor in school engagement and beliefs regarding normative education behaviour and likely outcomes. Exploratory factor …

Faces Of Pain In Dementia: Learnings From A Real-World Study Using A Technology-Enabled Pain Assessment Tool, Mustafa Atee, Kreshnik Hoti, Paola Chivers, Jeffery D. Hughes

Research outputs 2022 to 2026

Pain is common in people living with dementia (PLWD), including those with limited verbal skills. Facial expressions are key behavioral indicators of the pain experience in this group. However, there is a lack of real-world studies to report the prevalence and associations of pain-relevant facial micro-expressions in PLWD. In this observational retrospective study, pain-related facial features were studied in a sample of 3,144 PLWD [mean age 83.3 years (SD = 9.0); 59.0% female] using the Face domain of PainChek®, a point-of-care medical device application. Pain assessments were completed by 389 users from two national dementia-specific care programs and 34 Australian …

Understanding Employee Travel Behaviours In Response To Workplace Relocation: A Case Study Comparing Commuting Patterns Between Subiaco And Perth, Western Australia, Emil E. Jonescu, Chamil E. Ramanayaka, Stephen Moorcroft, Dean Symington

Research outputs 2022 to 2026

Our built environments offer distinct variables that impact behaviour–throughout the world, and equally within Western Australia. However, an in-depth analysis of extant literature indicates that influencing human behaviour is difficult in the absence of a ‘disruption’ event. Accordingly, this organization-level study examined the disruptive effects of relocating from a Subiaco office to a new office in Perth’s Central Business District on the commute habits of its built-environment professional employees. The relocation occurred during a ‘non-lockdown’ period between July and August 2021 (southern hemisphere winter). The study sought to determine if an office relocation constituted a sufficient ‘disruption’ to affect employees’ …

Coupled Heat-Mass Transport Modelling Of Radionuclide Migration From A Nuclear Waste Disposal Borehole, Kaveh Sookhak Lari, Dirk Mallants

Research outputs 2022 to 2026

Disposal of radioactive waste originating from reprocessing of spent research reactor fuel typically includes stainless steel canisters with waste immobilised in a glass matrix. In a deep borehole disposal concept, waste packages could be stacked in a disposal zone at a depth of one to potentially several kilometres. This waste will generate heat for several hundreds of years. The influence of combining a natural geothermal gradient with heat from decaying nuclear waste on radionuclide transport from deep disposal boreholes is studied by implementing a coupled heat-solute mass transport modelling framework, subjected to depth-dependent temperature, pressure, and viscosity profiles. Several scenarios …

Geospatiotemporal And Causal Inference Study Of Cannabis And Other Drugs As Risk Factors For Female Breast Cancer Usa 2003-2017, Albert Stuart Reece, Gary Kenneth Hulse

Research outputs 2022 to 2026

Breast cancer (BC) is the commonest human cancer and its incidence (BC incidence, BCI) is rising worldwide. Whilst both tobacco and alcohol have been linked to BCI genotoxic cannabinoids have not been investigated. Age-adjusted state-based BCI 2003-2017 was taken from the Surveillance Epidemiology and End Results database of the Centers for Disease Control. Drug use from the National Survey of Drug Use and Health, response rate 74.1%. Median age, median household income and ethnicity were from US census. Inverse probability weighted (ipw) multivariable regression conducted in R. In bivariate analysis BCI was shown to be significantly linked with rising cannabis …

Expert Guidance On Prophylaxis And Treatment Of Dermatologic Adverse Events With Tumor Treating Fields (Ttfields) Therapy In The Thoracic Region, Milan J Anadkat, Mario Lacouture, Adam Friedman, Zachary D Horne, Jae Jung, Benjamin Kaffenberger, Sujith Kalmadi, Liza Ovington, Rupesh Kotecha, Huda Ismail Abdullah, Federica Grosso

2020-Current year OA Pubs

Tumor Treating Fields (TTFields) are electric fields, delivered via wearable arrays placed on or near the tumor site, that exert physical forces to disrupt cellular processes critical for cancer cell viability and tumor progression. As a first-in-class treatment, TTFields therapy is approved for use in newly diagnosed glioblastoma, recurrent glioblastoma, and pleural mesothelioma. Additionally, TTFields therapy is being investigated in non-small cell lung cancer (NSCLC), brain metastases from NSCLC, pancreatic cancer, ovarian cancer, hepatocellular carcinoma, and gastric adenocarcinoma. Because TTFields therapy is well tolerated and delivery is locoregional, there is low risk of additive systemic adverse events (AEs) when used …

The Evolution Of Mining Employment During The Resource Boom And Bust Cycle In Australia, Nam Foo, Ruhul Salim

Research outputs 2022 to 2026

Mining employment in Australia can be cyclical and volatile. Since the gold rush in the 1850s, Australia has experienced two major mining booms. The first was in the 1970s and the second (i.e., the mineral boom) was in the mid-2000s and so it is important to have a discussion about trends in the Australian mining industry and about employment during mining cycles. This study employs Australian mining industry data to investigate sectoral labor mobility (moving from one industry to another) when the business cycles have changed. This research has used quarterly data from 1950q1 to 2018q4 for several industries such …

Higher Consumption Of Fruit And Vegetables Is Associated With Lower Worries, Tension And Lack Of Joy Across The Lifespan, Simone Radavelli-Bagatini, Marc Sim, Lauren C. Blekkenhorst, Nicola P. Bondonno, Catherine P. Bondonno, Richard Woodman, Joanne M. Dickson, Craig Harms, Dianna J. Magliano, Jonathan E. Shaw, Robin M. Daly, Jonathan M. Hodgson, Joshua Lewis

Research outputs 2022 to 2026

Background and Aims: Higher total fruit and vegetable (FV) intakes have been
associated with lower perceived stress. However, the relationship of FV intake with domains of perceived stress is unclear. The aim of this cross-sectional study was to explore the relationship between consumption of FV and four perceived stress domains (worries, tension, lack of joy and demands) in a population-based cohort of Australian adults.

Methods: Participants (n = 8,640) were men and women aged ≥ 25 years from
the Australian Diabetes, Obesity and Lifestyle (AusDiab) Study. Dietary intake was assessed using a 74-item validated Food Frequency Questionnaire. Perceived stress domains …

Summary Of Diabetes Among Aboriginal And Torres Strait Islander People, Australian Indigenous Healthinfonet, Kathy Ride

Research outputs 2022 to 2026

This publication, in plain language, is based on information presented in the Review of diabetes among Aboriginal and Torres Strait Islander people (2022). This short, visual report summarises the key findings and concepts from the review to provide a holistic picture of diabetes among Aboriginal and Torres Strait Islander people. It is a quick source of information covering:

• the social and cultural context of diabetes, and the behavioural and biomedical factors that contribute to diabetes among Aboriginal and Torres Strait Islander people
• the extent of diabetes among Aboriginal and Torres Strait Islander people, including incidence and prevalence data; hospitalisations; mortality …

Do Bird Communities Differ With Post-Fire Age In Banksia Woodlands Of South-Western Australia?, Robert A. Davis, Leonie E. Valentine, Michael D. Craig

Research outputs 2022 to 2026

Prescribed fire is a widespread management practice in fire-prone ecosystems that can have significant effects on fauna. To inform the development of appropriate prescribed burning regimes, we explored bird responses to time since fire in threatened Banksia woodlands in south-western Australia. We used area searches to estimate bird densities on 20 plots ranging from 1 to 26 years post fire. Fire had no significant effect on the overall bird community or any foraging guilds and there was no clear post-fire succession. Of the 26 frequently occurring species analysed, only two showed responses to fire, with yellow-rumped thornbills more abundant in …

Narrative Information On Secondhand Products In E-Commerce, Jian Xu, Zhe Li, Xuequn Wang, Chunyu Xia

Research outputs 2022 to 2026

Our study aims to examine how narrative information influences consumers’ perceived persuasiveness of secondhand product information. We conducted three experiments. The results show that narrative information leads to higher perceived persuasiveness when secondhand products are for self-use and lower perceived persuasiveness when secondhand products are not for self-use (studies 1, 2, and 3). Furthermore, its effect is mediated by reactance (studies 1 and 3). Our study contributes to the literature by clarifying the effect of narrative information on online secondhand shopping. For sellers, our study highlights how information dealing with usage-based attributes should be presented. For consumers, our study emphasizes …

A Scientific Analysis Of The Three-Step Test: Through The Lenses Of International And Australian Laws, Nikos Koutras

Research outputs 2022 to 2026

The paper examines the open access movement and its principles concerning creative outputs and related access opportunities, considering copyright protection. The international and ongoing integration of open access practise has brought about a reconsideration of foundational principles of copyright law. The paper's discussion considers the three-step test legal edifice, which is deeply rooted in international copyright law, and argues that its importance and application is of paramount importance regarding potential revisions of copyright law that would need to introduce open access provisions.

A Large-Scale Genome-Wide Cross-Trait Analysis Reveals Shared Genetic Architecture Between Alzheimer’S Disease And Gastrointestinal Tract Disorders, Emmanuel O. Adewuyi, Eleanor K. O'Brien, Dale R. Nyholt, Tenielle Porter, Simon Laws

Research outputs 2022 to 2026

Consistent with the concept of the gut-brain phenomenon, observational studies suggest a relationship between Alzheimer’s disease (AD) and gastrointestinal tract (GIT) disorders; however, their underlying mechanisms remain unclear. Here, we analyse several genome-wide association studies (GWAS) summary statistics (N = 34,652–456,327), to assess the relationship of AD with GIT disorders. Findings reveal a positive significant genetic overlap and correlation between AD and gastroesophageal reflux disease (GERD), peptic ulcer disease (PUD), gastritis-duodenitis, irritable bowel syndrome and diverticulosis, but not inflammatory bowel disease. Cross-trait meta-analysis identifies several loci (P_{meta-analysis} < 5 × 10⁻⁸) shared by AD and GIT disorders (GERD and PUD) including …

5-Ht2 Receptor Antagonism Reduces Human Motoneuron Output To Antidromic Activation But Not To Stimulation Of Corticospinal Axons, Jacob R. Thorstensen, Janet L. Taylor, Justin J. Kavanagh

Research outputs 2022 to 2026

The intrinsic electrical properties of motoneurons strongly affect motoneuron excitability to fast-acting excitatory ionotropic inputs. Serotonin (5-HT) is a neurochemical that alters the intrinsic properties of motoneurons, whereby animal models and in vitro experiments indicate that 5-HT increases motoneuron excitability by activating 5-HT2 receptors on the somato-dendritic compartment. In the current study, we examined how antagonism of the 5-HT2 receptor affects motoneuron excitability in humans. We hypothesised that motoneuron excitability would be reduced. The 5-HT2 antagonist cyproheptadine was administered to 10 healthy participants in a double-blinded, placebo-controlled, crossover trial. Electrical cervicomedullary stimulation was used to deliver a synchronised excitatory volley …

Curriculum Reform In Wales: Physical Education Teacher Educators' Negotiation Of Policy Positions, David Aldous, Victoria Evans, Dawn Penney

Research outputs 2022 to 2026

This paper reports on research that explored the experiences of secondary Physical Education Teacher Education (PETE) professionals' simultaneous negotiation and implementation of the new Curriculum for Wales (CfW) Health and Well-Being (HWB) Area of Learning and Experience (AoLE) and policies focused on the transformation of Initial Teacher Education (ITE) in Wales. The study was an exploratory case study of PETE professionals working within one university's ITE programme. Data were generated through documentary analysis of PETE and ITE programme materials and semi-structured interviews with staff involved in programme management and delivery. Data analysis employed Ball and colleagues' conceptualisation of policy actors …

Epidemiology Of ∆8thc-Related Carcinogenesis In Usa: A Panel Regression And Causal Inferential Study, Albert Stuart Reece, Gary Kenneth Hulse

Research outputs 2022 to 2026

The use of ∆8THC is increasing at present across the USA in association with widespread cannabis legalization and the common notion that it is “legal weed”. As genotoxic actions have been described for many cannabinoids, we studied the cancer epidemiology of ∆8THC. Data on 34 cancer types was from the Centers for Disease Control Atlanta Georgia, substance abuse data from the Substance Abuse and Mental Health Services Administration, ethnicity and income data from the U.S. Census Bureau, and cannabinoid concentration data from the Drug Enforcement Agency, were combined and processed in R. Eight cancers (corpus uteri, liver, gastric cardia, breast …

Openness About Sexual Orientation And Exposure To Workplace Bullying, Helge Hoel, Duncan Lewis, Anna Einarsdottir, Guy Notelaers

Research outputs 2022 to 2026

Previous studies of workplace bullying have not investigated whether Lesbian, Gay and Bisexual (LGB) employees experience bullying in similar or different ways to their heterosexual counterparts. This study reports on how and to what extent sexuality or sexual orientation influences the experience of workplace bullying and whether openness about sexual orientation elevates risks and shapes exposure to bullying. Using a large and rigorously compiled sample of the British working population comprising 500 non-heterosexuals and 722 heterosexuals (N = 1,222) and applying latent Class Cluster Analysis, a similar behavioural pattern of bullying for LGB employees emerged as for heterosexuals, although LGB …

Summary Of Cannabis Use Among Aboriginal And Torres Strait Islander People, Australian Indigenous Healthinfonet

Research outputs 2022 to 2026

This Summary is based on the Review of cannabis use among Aboriginal and Torres Strait Islander people. The review summarises the evidence from journal publications, government reports, national data collections and national surveys accessed through the HealthInfoNet’s database of publications. Please note that statistics presented do not always include all states and territories, see sources for details. ...

Regulatory Flexibilities And Access To Covid-19 Vaccines During The Pandemic In Bhutan, Dawa Tshering, Pelden Chejor

Research outputs 2022 to 2026

Summary Coronavirus disease 2019 (COVID-19) is rapidly evolving with millions of cases and death reported globally. The first-ever case of COVID-19 in Bhutan was confirmed on 5 March 2020 in a 76-year-old American tourist. The national regulatory authorities have implemented varying degrees of regulatory flexibilities to prevent unnecessary death by ensuring timely access to medical products and technologies during the pandemic. The Drug Regulatory Authority of Bhutan, as a national medicines regulatory agency responsible for ensuring the quality of medical products has implemented several regulatory mechanisms to ensure access to medical products including COVID-19 vaccines during the pandemic. In this …

The Development Of The Western Australian Haemodialysis Vascular Access Complexity Instrument, Linda L. Coventry, Jon Hosking, Evelyn Coral, Mark Jenkins, Chandra P. Salgado Kent, Doris Chan, Wai Lim, Diane E. Twigg, Claire M. Rickard

Research outputs 2022 to 2026

Background The Western Australian Haemodialysis Vascular Access Classification instrument was developed to classify the cannulation complexity of the arteriovenous fistula or arteriovenous graft as simple, challenging, or complex. Although the instrument was developed by experts in haemodialysis nursing, the instrument had not undergone formal validity or reliability testing. Objectives Evaluate the Western Australian Haemodialysis Vascular Access Classification instrument for content validity, interrater and test–retest reliability. Design Prospective cohort study. Participants Content validity was assessed by haemodialysis nursing experts (n = 8). The reliability testing occurred in one in-centre and one satellite haemodialysis unit in Western Australia from September to November …

Integrating Indigenous Perspectives In The Drama Class: Pre-Service Teachers' Perceptions And Attitudes, Elisa M. Williams, Julia Morris

Research outputs 2022 to 2026

Currently, educational bodies are recognising the importance of integrating Australian Indigenous cultures in education to promote intercultural understanding and improve outcomes for Indigenous students. In drama, learning about Indigenous perspectives can be integrated through sharing cultural stories, with this integration mandated by the Australian curriculum. However, teachers are struggling to achieve this directive due to a lack of knowledge in Indigenous content and concerns surrounding permission and cultural appropriation. This qualitative study used a focus group interview to determine non-Indigenous pre-service drama teachers' perceptions about integrating Indigenous perspectives in their praxis. Inductive analysis of the data revealed participants strongly believed …

Service User Involvement In Social Work Education: Enhancing Student Learning About Intimate Partner Violence, Rebecca Jury

Research outputs 2022 to 2026

Men who use intimate partner violence (IPV) are often excluded from service user involvement approaches, including those provided in social work education. This article outlines Australian research in which men who use IPV developed a learning resource, the resource was shown to social work students and student feedback sought through pre- and post-test questionnaires and group discussion. Students reported increased knowledge regarding interpersonal violence, greater awareness of the skills required to engage service users who use IPV and willingness to work alongside service users who are involuntary and/or have multiple issues in future social work placements and practice. The findings …

Mathematical Connections Established In The Teaching Of Functions, Vesife Hatisaru

Research outputs 2022 to 2026

This study explores the types of mathematical connections established in the classroom in the teaching of functions. An extended model for mathematical connections (different representations (DR), procedural (PC), if-then (I-T), part-whole connections (PWC), feature/property (F/P), analogies, and instruction-oriented connections (IOC)) is used as the analytical framework. The context for the study is classroom observations of two secondary mathematics teachers teaching functions to Grade 9 students. The strength of teachers’ mathematical knowledge for teaching (MKT) the concept of function is different: one has stronger MKT, while the other has weaker MKT. A total of 485 connections are identified in a sample …

Nurse-Led Volunteer Support Care Plan, Rosemary Saunders, Kate Crookes, Karen Gullick, Olivia Gallagher, Karla Seaman, Debra Scaini, Seng Giap Marcus Ang, Caroline Bulsara, Bev Ewens, Jeff Hughes, Bev O'Connell, Christopher Etherton-Beer

Research outputs 2022 to 2026

The Nurse-Led Volunteer Support Care Plan described in “Nurses leading volunteer support for older adults in hospital: A discussion paper” is made available. This care plan is designed for nurses to develop a plan to direct volunteer support to better meet the individual needs of patients.