Digital Commons Network^™

Finding Geodesics Joining Given Points, Lyle Noakes, Erchuan Zhang

Research outputs 2022 to 2026

Finding a geodesic joining two given points in a complete path-connected Riemannian manifold requires much more effort than determining a geodesic from initial data. This is because it is much harder to solve boundary value problems than initial value problems. Shooting methods attempt to solve boundary value problems by solving a sequence of initial value problems, and usually need a good initial guess to succeed. The present paper finds a geodesic γ: [0 , 1] → M on the Riemannian manifold M with γ(0) = x0 and γ(1) = x1 by dividing the interval [0,1] into several sub-intervals, preferably just …

Physical Layer Authentication Using Ensemble Learning Technique In Wireless Communications, Muhammad Waqas, Shehr Bano, Fatima Hassan, Shanshan Tu, Ghulam Abbas, Ziaul Haq Abbas

Research outputs 2022 to 2026

Cyber-physical wireless systems have surfaced as an important data communication and networking research area. It is an emerging discipline that allows effective monitoring and efficient real-time communication between the cyber and physical worlds by embedding computer software and integrating communication and networking technologies. Due to their high reliability, sensitivity and connectivity, their security requirements are more comparable to the Internet as they are prone to various security threats such as eavesdropping, spoofing, botnets, man-in-the-middle attack, denial of service (DoS) and distributed denial of service (DDoS) and impersonation. Existing methods use physical layer authentication (PLA), the most promising solution to detect …

Relationships Between Intrauterine Fetal Growth Trajectories And Markers Of Adiposity And Inflammation In Young Adults, Ashish Yadav, Lawrence J. Beilin, Rae Chi Huang, Phil Vlaskovsky, John P. Newnham, Scott W. White, Trevor A. Mori

Research outputs 2022 to 2026

Background: There is now good evidence that events during gestation significantly influence the developmental well-being of an individual in later life. This study aimed to investigate the relationships between intrauterine growth trajectories determined by serial ultrasound and subsequent markers of adiposity and inflammation in the 27-year-old adult offspring from the Raine Study, an Australian longitudinal pregnancy cohort. Methods: Ultrasound fetal biometric measurements including abdominal circumference (AC), femur length (FL), and head circumference (HC) from 1333 mother-fetal pairs (Gen1–Gen2) in the Raine Study were used to develop fetal growth trajectories using group-based trajectory modeling. Linear mixed modeling investigated the relationship between …

Synergistic Efficiency Of Zinc Oxide/Montmorillonite Nanocomposites And A New Derived Saponin In Liquid/Liquid/Solid Interface-Included Systems: Application In Nanotechnology-Assisted Enhanced Oil Recovery, Ahmad Nourinia, Abbas Khaksar Manshad, Seyed Reza Shadizadeh, Jagar A. Ali, Stefan Iglauer, Alireza Keshavarz, Amir H. Mohammadi, Muhammad Ali

Research outputs 2022 to 2026

Oil production faces challenges such as limited oil production from carbonate reservoirs, high oil production costs, and environmental issues. Chemical flooding as an enhanced oil recovery (EOR) method (CEOR) can increase oil production by the use of chemical additives such as surfactants into the reservoirs. Surfactants can increase oil recovery by interfacial tension (IFT) reduction and alteration of the rock wettability from oil-wet to water-wet. The synthesis of chemicals such as synthetic surfactants is usually costly and harmful to the environment. To solve these problems, many researchers have oriented on the use of natural surfactants instead of synthetic ones within …

Do Personal Values Have An Effect On Self-Esteem In Middle Childhood?, Patricia R. Collins, Joanne Sneddon, Julie Ann Lee

Research outputs 2022 to 2026

Research on children's values (i.e., broad motivational goals) largely focuses on whether their values have a similar theoretical pattern of organization to those of adults, whether they hold similar value priorities to adults or adolescents, and how their values relate to social behavior. However, little is known about how values relate to wellbeing in middle childhood. We examined relations between the values of children aged 6–12 and aspects of their self-esteem, including global self-worth and five domain-specific-competencies. We found global self-worth and physical appearance were positively related to self-transcendence, conservation, and openness-to-change values, and negatively related to self-enhancement values. Social …

Association Between Energy Balance-Related Factors And Clinical Outcomes In Patients With Ovarian Cancer: A Systematic Review And Meta-Analysis, Stephanie Stelten, Christelle Schofield, Yvonne A. W. Hartman, Pedro Lopez, Gemma G. Kenter, Robert U. Newton, Daniel A. Galvão, Meeke Hoedjes, Dennis R. Taaffe, Luc R. C. W. Van Lonkhuijzen, Carolyn Mcintyre, Laurien M. Buffart

Research outputs 2022 to 2026

Background:

This systematic review and meta-analysis synthesized evidence in patients with ovarian cancer at diagnosis and/or during first-line treatment on; (i) the association of body weight, body composition, diet, exercise, sedentary behavior, or physical fitness with clinical outcomes; and (ii) the effect of exercise and/or dietary interventions.

Methods:

Risk of bias assessments and best-evidence syntheses were completed. Meta-analyses were performed when ≥ 3 papers presented point estimates and variability measures of associations or effects.

Results:

Body mass index (BMI) at diagnosis was not significantly associated with survival. Although the following trends were not supported by the best-evidence syntheses, the meta-analyses …

Effect Of Methyl Orange On Wettability Of Sandstone Formations: Implications For Enhanced Oil Recovery, Fatemah Alhamad, Mujahid Ali, Muhammad Ali, Hussein Abid, Hussein Hoteit, Stefan Iglauer, Alireza Keshavarz

Research outputs 2022 to 2026

With the increasing global population, fossil fuel resources still represent a main contributor to the energy supply, despite the progress made in the field of renewable energies. Large quantities of residual oil from mature reservoirs cannot be produced through primary and secondary recovery methods. Among alternative recovery techniques, chemically enhanced oil recovery methods are attracting considerable interest to increase the hydrocarbon recovery from oil-bearing geological formations. The wettability of any particular formation can be used to predict the oil recovery factor of a reservoir based on its wetting state. However, due to the complex nature of geological porous media, special …

Exploring Food Supply Chain Trends In The Covid-19 Era: A Bibliometric Review, Abderahman Rejeb, Karim Rejeb, Andrea Appolloni, Mohammad Iranmanesh, Horst Treiblmaier, Sandeep Jagtap

Research outputs 2022 to 2026

Recently, the food supply chain (FSC) has been severely disrupted due to the COVID-19 pandemic, putting the vital flow of food products from farmers and producers to the ultimate consumers at risk. Furthermore, due to the pandemic, several food organizations have been prompted to rethink their strategies for the future. Although the literature on FSC research in the COVID-19 era is increasing, no attempt has been made to summarize this stream of research using bibliometric techniques. This paper fills this knowledge gap and looks at the current scholarly discourse around the FSC and COVID-19. Applying bibliometric techniques, 287 journal articles …

Realising Curriculum Possibilities In Wales: Teachers’ Initial Experiences Of Re-Imagining Secondary Physical Education, David Aldous, Victoria Evans, Rhys Lloyd, Fiona Heath-Diffey, Fiona Chambers

Research outputs 2022 to 2026

This paper provides insight into secondary Physical Education (PE) teachers’ experiences of beginning to re-imagine secondary physical education provision in light of the new Curriculum for Wales, 2022 (CfW). Data were generated through analysis of semi-structured interviews (n = 5) with secondary PE teachers who participated in three workshops which uses a design-thinking methodology. Informed by Ball and colleagues’ conceptualisation of policy work, findings draw attention towards how engagement in the workshops provided a foundation for the participants to begin interpretation and translation of the new CfW and consider re-imagining existing PE provision within the school context. Participants’ interpretations of …

Exhibiting Slavery: Biographical Approaches, Paul L. Arthur, Isobel Smith

Research outputs 2022 to 2026

Within museums, interpretation and curation have increasingly employed personal stories and intimate storytelling to present broader narratives about the past. This article explores some of the opportunities and challenges of biographical storytelling in museums and public sites of memory that engage with the issue of slavery, analysing Australian exhibitions alongside international contexts and theories of museology, historiography and memory. It will look at representations of historical and modern slavery in Australia, as well as global representations of the transatlantic slave trade and other traumatic histories such as the Holocaust. The discussion explores the potential for personal counter-narratives, the reimagining of …

Identifying Modifiable Features Of Home Bowel Cancer Screening Kits To Facilitate Use: Consumer Perspectives, Belinda C. Goodwin, Bianca Viljoen, Larry Myers, Michael J. Ireland, Jeff Dunn, Suzanne K. Chambers, Nicholas Ralph, Joanne F. Aitken

Research outputs 2022 to 2026

Objectives:

Despite the widely publicised health benefits of participation in bowel cancer screening, only 43.5% of recipients participate in the Australian National Bowel Cancer Screening Program (NBCSP). Through consultation with kit recipients, this study aimed to identify features of home bowel screening kits that could be modified to increase their use.

Method:

Participants (n = 25) were presented with nine different bowel cancer screening kits and asked to identify features of each kit that might prevent or promote their use. Responses were coded using content analysis, and a narrative synthesis is presented summarising preferences relating to each element of the …

Myth-Busting In An Aboriginal Pre-University Bridging Program: Embedding Transformative Learning Pedagogy, Rebecca Bennett, Karin Strehlow, Braden Hill

Research outputs 2022 to 2026

Pre-university bridging programs can address the significant under-representation of Indigenous students in Australian universities by providing culturally supported alternative pathways into undergraduate study. However, successful completion of bridging programs does not always correlate with university enrolment for Indigenous students. This paper offers a pedagogical rationale for an Indigenous bridging program that aims to address this discrepancy. The program curriculum challenges deficit myths about Aboriginal and Torres Strait Islander Australians and education, while developing foundational academic skills for university study. Leveraging Transformative Learning and Cultural Interface theories, the program aims to empower students with the opportunity to develop their own narratives …

Perspectives On Wider Integration Of The Health-Assistive Smart Home, Gordana Dermody, Jenna Mikus, Davina Porock, Dov Sugarman, Naeem K. Janjua, Christopher How, Roschelle Fritz

Research outputs 2022 to 2026

Most older adults desire to be as independent as possible and remain living in their ancestral home as they age. Aging-in-place maximizes the independence of older adults, enhancing their wellbeing and quality of life while decreasing the financial burden of residential care costs. However, due to chronic disease, multimorbidity, and age-related changes, appropriate conditions are required to make aging-in-place possible. Remote monitoring with smart home technologies could provide the infrastructure that enables older adults to remain living independently in their own homes safely. The health-assistive smart home shows great promise, but there are challenges to integrating smart homes on a …

Speaking Of Online Learning: Alternative Practice-Based Learning Experiences For Speech Pathologists In Australia, Ghana And Hong Kong, Jemma Skeat, Josephine Ohenewa Bampoe, Susan Booth, Emily Brogan, Maya Conway, Rachel Davenport, Simone Howells, Peggy Kan, Michelle Krahe, Sally Hewat, Abigail Lewis, Alex Little, Joanne Walters, Gwendalyn Webb, Nikki Worthington

Research outputs 2022 to 2026

Speech Pathology programs usually send students to workplaces to learn clinical skills necessary for practice. During COVID-19, programs needed to respond quickly to ensure that students continued to gain the necessary experiences and skills required to progress through their program and graduate as clinicians, while simultaneously complying with COVID-19 requirements. Case studies from seven different universities in Australia, Ghana and Hong Kong described the diverse ways in which placements were adapted to be COVID-safe, taking into account local needs. Some practices which had been included in placement education prior to the pandemic, such as telepractice and simulation-based learning, were extended …

Deep Learning Inspired Feature Engineering For Classifying Tremor Severity, Ahmed Al Taee, Seyedehmarzieh Hosseini, Rami N. Khushaba, Tanveer Zia, Chin-Teng Lin, Adel Al-Jumaily

Research outputs 2022 to 2026

Bio-signals pattern recognition systems can be impacted by several factors with a potential to limit their associated performance and clinical translation. Among these factors, selecting the optimum feature extraction method, that can effectively exploit the interaction between the temporal and spatial information, is the most prominent. Despite the potential of deep learning (DL) models for extracting temporal, spatial, or temporal-spatial information, they are typically restricted by their need for a large amount of training data. The deep wavelet scattering transform (WST) is a relatively recent advancement within the DL literature to replace expensive convolution neural networks models with computationally less …

Sport-Specific Crossover Point Differences During A Maximal Oxygen Consumption Test, Joseph R. Stanzione, George A. Brooks, Michael L. Bruneau, Duncan N. French, Jennifer A. Nasser, Sinclair A. Smith, Stella L. Volpe

Research outputs 2022 to 2026

Introduction/Purpose: The crossover point occurs during exercise when one transitions energy substrates from fat to carbohydrate predominance. The crossover point varies in an intensity-dependent manner; however, less is known about its specificity in sports with varying metabolic demands. The purpose of our study was to determine if various sports yield differences in the time to crossover and heart rate and percentage of maximal oxygen consumption (V O2max) at crossover during a standardized exercise protocol.

Methods: A total of 77 athletes (39 women, 38 men; 39.1 + 10.4 yr of age) were measured for respiratory exchange ratio during a modified Taylor …

Contexts For Children’S Digital Citizenship In India, Korea And Australia: A Literature Review, Kylie Stevenson, Emma Jayakumar, Viet Tho Le, Yeonghwi Ryu, Harrison See

Research outputs 2022 to 2026

Children’s digital citizenship today: In an increasingly digitised and technically mediated world, an individual’s digital citizenship, or “ability to use digital technology and media in safe, responsible and ethical ways” (DQ Institute, 2019) has never been more relevant, particularly when it concerns our youngest digital citizens. Navigating online spaces safely and confidently are skills fundamental to a modern individual’s social and emotional development, education, work and play. A digital citizen’s abilities, however, are greatly impacted by notions of access; not just physical access, but also access mediated culturally and socio-economically. Less is known about very young children’s experiences of digital …

Genes Involved In Platelet Aggregation And Activation Are Downregulated During Acute Anaphylaxis In Humans, Francesca M. Mcgrath, Abbie Francis, Daniel M. Fatovich, Stephen P. J. Macdonald, Glenn Arendts, Andrew J. Woo, Erika Bosio

Research outputs 2022 to 2026

Objective: Mechanisms underlying the anaphylactic reaction in humans are not fully understood. Here, we aimed at improving our understanding of anaphylaxis by investigating gene expression changes. Methods: Microarray data set GSE69063 was analysed, describing emergency department (ED) patients with severe anaphylaxis (n = 12), moderate anaphylaxis (n = 6), sepsis (n = 20) and trauma (n = 11). Samples were taken at ED presentation (T0) and 1 h later (T1). Healthy controls were age and sex matched to ED patient groups. Gene expression changes were determined using limma, and pathway analysis applied. Differentially expressed genes were validated in an independent …

Advancing Feminist Innovation In Sport Studies: A Transdisciplinary Dialogue On Gender, Health And Wellbeing, Holly Thorpe, Sheree Bekker, Simone Fullagar, Nonhlanhla Mkumbuzi, Sophia Nimphius, Madeleine Pape, Stacy T. Sims, A. Travers

Research outputs 2022 to 2026

Athlete health and wellbeing requires a holistic, multidimensional approach to understanding, supporting, and treating individual athletes. Building more supportive, inclusive, and equitable environments for the health and wellbeing of women and gender expansive people further requires gender-responsive approaches that promote broader cultural change. Feminist sport and exercise medicine practitioners, sports scientists, and social science researchers are increasingly coming together in their efforts to do this work. However, working across disciplines inevitably includes an array of ontological, epistemological, and political challenges. In this paper, we offer a curated ‘dialogue’ with a group of feminist scholars engaged in research and practice across …

A Review On Security Issues And Solutions Of The Internet Of Drones, Wencheng Yang, Song Wang, Xuefei Yin, Xu Wang, Jiankun Hu

Research outputs 2022 to 2026

The Internet of Drones (IoD) has attracted increasing attention in recent years because of its portability and automation, and is being deployed in a wide range of fields (e.g., military, rescue and entertainment). Nevertheless, as a result of the inherently open nature of radio transmission paths in the IoD, data collected, generated or handled by drones is plagued by many security concerns. Since security and privacy are among the foremost challenges for the IoD, in this paper we conduct a comprehensive review on security issues and solutions for IoD security, discussing IoD-related security requirements and identifying the latest advancement in …

A Low-Cost Machine Learning Based Network Intrusion Detection System With Data Privacy Preservation, Jyoti Fakirah, Lauhim Mahfuz Zishan, Roshni Mooruth, Michael L. Johnstone, Wencheng Yang

Research outputs 2022 to 2026

Network intrusion is a well-studied area of cyber security. Current machine learning-based network intrusion detection systems (NIDSs) monitor network data and the patterns within those data but at the cost of presenting significant issues in terms of privacy violations which may threaten end-user privacy. Therefore, to mitigate risk and preserve a balance between security and privacy, it is imperative to protect user privacy with respect to intrusion data. Moreover, cost is a driver of a machine learning-based NIDS because such systems are increasingly being deployed on resource-limited edge devices. To solve these issues, in this paper we propose a NIDS …

Exploring Issues Of Resilience And Technology Use For Older People - A Scoping Review Protocol, Timothy J. Smith, Khui Hung Lee, Kan Yu, Leisa Armstrong, David M. Cook

Research outputs 2022 to 2026

The aim of this scoping review is to understand the extent of issues of resilience implied by the interactions of older people with financial, social, and health related technologies. Older people aged 60+, technology use or non-use, and issues of resilience studied over the last four years (2019-2022) demarcate the scope of this review. Key exclusion criteria are older adults living in long-term care facilities, nursing homes, care homes and hospital in-patients. It also excludes studies on the perspectives of older peoples’ clinicians. The review will be carried out according to the Joanna Briggs Institute (JBI) scoping review methodology. The …

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 …

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 …

Lenses Of Understanding: Socially Constructed Meaning Making In Education Abroad, Callie Dominique Speer

Education

The purpose of this study was to explore meaning making in the context of education abroad. This was conducted through three articles exploring elements of this process, including how programs may be framed through marketing and advising practices; the foundational importance of social and geographic place; the dialectical interactions between embodied experience with conceptual schema, figurative language, and narratives; and the role of student agency within these processes.The first article explored the relationship between virtual delivery and student development as mediated by embodied experience. Through this analysis, concerns about the possibility for the creation of a simulacrum of education abroad …

“It’S Like Bluetooth. I Felt Like I Was In Rhythm With Him:” An Interpretative Phenomenological Analysis (Ipa) Of The Lived Experiences Of Commercially Sexually Exploited Youth (Csey) In A Residential Equine Assisted Psychotherapy (Eap) Program, Jenna Hershberger

Education

Human sex trafficking is a grave human rights violation that impacts the dignity of millions both globally and in the United States. The International Labor Organization estimates 4.5 million children are trafficked around the global at any given time (International Labour Organization [ILO], 2017). Within the United States, approximately two in five human trafficking offenses reported to federally funded human trafficking task forces from 2008 to 2010 involved the sex trafficking of minors (Banks & Kyckelhahn, 2011). Childhood traumas, including childhood sexual abuse and rape, emotional abuse, running away from home, and family members’ involvement in sex work or friends …

Development And Validation Of The Short Version Of The Sense Of Humor Scale (Shs-S), Sonja Heintz, Willibald Ruch, Chloe Lau, Donald H. Saklofske, Paul Mcghee

School of Psychology

Abstract. Humor training has become increasingly popular to enhance the “sense of humor” and well-being and to decrease depressive symptoms. Despite the wide applications of these training programs, the assessment of training efficacy has attracted less attention. The Sense of Humor Scale (SHS; McGhee, 1996 , 1999 ) recently was expanded to a long version (SHS-L) to enhance its internal consistency ( Ruch & Heintz, 2018 ). At the same time, there is also the need for a brief version of this scale. The purpose of the present study is to develop a short version (SHS-S) in both German- and …

A Neural Network-Based Model For Lower Limb Continuous Estimation Against The Disturbance Of Uncertainty, Wanting Li, Keping Liu, Zhongbo Sun, C Li, Yuanyuan Chai, Jian Gu

School of Engineering, Computing and Mathematics

In this paper, a novel prediction model is proposed to estimate human continuous motion intention using a fuzzy wavelet neural network (FWNN) and a zeroing neural network (ZNN). During walking, seven channel surface electromyography (sEMG) signals and motion data of hip and knee are collected, and two signals are selected and processed from the seven muscles based on physiological and correlation analysis. Then, FWNN is built as an intention recognition model, with sEMG signals as input and physical hip and knee information as output. Meanwhile, ZNN is exploited into the FWNN model, forming a hybrid model to eliminate the prediction …

Investigation Of Wave-Driven Hydroelastic Interactions Using Numerical And Physical Modelling Approaches, S. A. Brown, N. Xie, M. R. Hann, D. M. Greaves

School of Engineering, Computing and Mathematics

Wave-driven hydroelasticity is of great importance to a wide range of applications within offshore and coastal engineering. Harnessing the benefits of hydroelasticity or minimising its impacts, depending on the application, has recently led to substantial investment in research effort in this field. However, the complex and strongly-coupled nature of the problem generally make the impacts very case specific, highlighting the importance of accurate numerical tools for assessing the impact on a case-by-case basis. Therefore, this study aims to provide novel experimental data to assist with the development of a coupled numerical methodology for simulating fully nonlinear hydroelastic interactions with highly-flexible …

Crowdsourcing Platform For Qoe Evaluation For Cloud Multimedia Services, A Laghari, Hui He, Asiya Khan, R Laghari, Shoulin Yin, Jiachi Wang

School of Engineering, Computing and Mathematics

This paper presents a novel web-based crowdsourcing platform for the assessment of the subjective and objective quality of experience (QoE) of the video service in the cloud-server environment. The user has the option to enter subjective QoE data for video service by filling out a web questionnaire. The objective QoE data of the cloud-server, network condition, and the user device is automatically captured by the crowdsourcing platform. Our proposed system collects both objective and subjective QoE simultaneously in real-time. The paper presents the key technologies used in the development of the platform and describes the functional requirements and design ideas …