Digital Commons Network^™

Determination Of Forming Ability Of High Pressure Die Casting For Zr-Based Metallic Glass, Lehua Liu, Jiang Ma, Chunyan Yu, Xiusong Huang, Liangju He, Laichang Zhang, Peijie Li, Zhiyuan Liu

Research outputs 2014 to 2021

Large-sized industrial grade Zr₅₅Cu₃₀Ni₅Al₁₀ bulk metallic glass (BMG) was fabricated by a two-step arc-melting process and adding a trace of rare earth yttrium elements. A model to calculate critical cooling rate for forming BMG was established by considering the effect of pressure. Based on the model, the most important indicator, namely the critical size of forming BMG, for design and fabrication of BMG components by high pressure die casting (HPDC) is determined in consideration of different processing parameters, including the pressure and casting temperature. Theoretical calculation and numerical simulation indicated that increasing applied …

Pd-L1 Expressing Circulating Tumour Cells In Head And Neck Cancers, Arutha Kulasinghe, Chris Perry, Liz Kenny, Majid E. Warkiani, Colleen Nelson, Chamindie Punyadeera

Research outputs 2014 to 2021

Background

Blockade of the PD-1/PD-L1 immune checkpoint pathway is emerging as a promising immunotherapeutic approach for the management and treatment of head and neck cancer patients who do not respond to 1st/2nd line therapy. However, as checkpoint inhibitors are cost intensive, identifying patients who would most likely benefit from anti PD-L1 therapy is required. Developing a non-invasive technique would be of major benefit to the patient and to the health care system.

Case presentation

We report the case of a 56 year old man affected by a supraglottic squamous cell carcinoma (SCC). A CT scan showed a 20 mm right …

Employer Understanding Of Work-Integrated Learning And The Challenges Of Engaging In Work Placement Opportunities, Denise Jackson, David Rowbottom, Sonia Ferns, Diane Mclaren

Research outputs 2014 to 2021

This study examines employer understanding of Work-Integrated Learning (WIL), reasons for participation and the challenges and barriers posed during the WIL process. This is important given the drive to grow WIL, augmented by the National Strategy for WIL, and the significant benefits it holds in preparing students for their transition to employment. The study was undertaken by the four publicly funded Western Australian universities, in partnership with the Chamber of Commerce and Industry of Western Australia, and is focused on work placements among business students. Findings indicate employers had very little understanding of WIL offerings at the four Business Schools. …

Ferric Carbide Nanocrystals Encapsulated In Nitrogen-Doped Carbon Nanotubes As An Outstanding Environmental Catalyst, Chen Wang, Jian Kang, Ping Liang, Huayang Zhang, Hongqi Sun, Moses O. Tadé, Shaobin Wang

Research outputs 2014 to 2021

Nitrogen-doped carbon nanotubes encapsulating iron carbide (Fe₃C) nanocrystals (Fe₃C@NCNT) were fabricated by a simple and direct pyrolysis method using melamine and ferric chloride as the C, N and Fe precursors. The surface morphology, structure and composition of the Fe₃C@NCNT materials were thoroughly investigated. The nanomaterials were employed as novel catalysts for peroxymonosulfate (PMS) activation; outstanding efficiency, high stability and excellent reusability were observed in the catalytic oxidation of organics. The encapsulated Fe₃C nanoparticles played a key role in the emerging synergetic effects of the carbide and the protective graphitic layers. In addition, …

Vegetable And Fruit Intake And Fracture-Related Hospitalisations: A Prospective Study Of Older Women, Lauren C. Blekkenhorst, Jonathan M. Hodgson, Joshua R. Lewis, Amanda Devine, Richard J. Woodman, Wai H. Lim, Germaine Wong, Kun Zhu, Catherine P. Bondonno, Natalie C. Ward, Richard L. Prince

Research outputs 2014 to 2021

The importance of vegetable and fruit intakes for the prevention of fracture in older women is not well understood. Few studies have explored vegetable and fruit intakes separately, or the associations of specific types of vegetables and fruits with fracture hospitalisations. The objective of this study was to examine the associations of vegetable and fruit intakes, separately, and specific types of vegetables and fruits with fracture-related hospitalisations in a prospective cohort of women aged ≥70 years. Vegetable and fruit intakes were assessed at baseline (1998) in 1468 women using a food frequency questionnaire. The incidence of fracture-related hospitalisations over 14.5 …

Changes In The Relative Balance Of Approach And Avoidance Inclinations To Use Alcohol Following Cue Exposure Vary In Low And High Risk Drinkers, Ross Hollett, Werner G.K. Stritzke, Phoebe Edgeworth, Michael Weinborn

Research outputs 2014 to 2021

According to the ambivalence model of craving, alcohol craving involves the dynamic interplay of separate approach and avoidance inclinations. Cue-elicited increases in approach inclinations are posited to be more likely to result in alcohol consumption and risky drinking behaviors only if unimpeded by restraint inclinations. Current study aims were (1) to test if changes in the net balance between approach and avoidance inclinations following alcohol cue exposure differentiate between low and high risk drinkers, and (2) if this balance is associated with alcohol consumption on a subsequent taste test. In two experiments (N = 60; N = 79), low …

Development Of The Aboriginal Communication Assessment After Brain Injury (Acaabi): A Screening Tool For Identifying Acquired Communication Disorders In Aboriginal Australians, Elizabeth Armstrong, Natalie Ciccone, Deborah J. Hersh, Judith Katzenellebogen, Juli Coffin, Sandra Thompson, Leon Flicker, Colleen Hayward, Deborah Woods, Meaghan Mcallister

Research outputs 2014 to 2021

Purpose:

Acquired communication disorders (ACD), following stroke and traumatic brain injury, may not be correctly identified in Aboriginal Australians due to a lack of linguistically and culturally appropriate assessment tools. Within this paper we explore key issues that were considered in the development of the Aboriginal Communication Assessment After Brain Injury (ACAABI) – a screening tool designed to assess the presence of ACD in Aboriginal populations.

Method:

A literature review and consultation with key stakeholders were undertaken to explore directions needed to develop a new tool, based on existing tools and recommendations for future developments.

Result:

The literature searches revealed …

Muddy Waters: Unintentional Consequences Of Blue Carbon Research Obscure Our Understanding Of Organic Carbon Dynamics In Seagrass Ecosystems, E. Fay Belshe, Miguel-Angel Mateo, Lucy Gillis, Martin Zimmer, Mirta Teichberg

Research outputs 2014 to 2021

The recent surge in research on organic carbon sequestration by seagrass ecosystems has begun to reveal the complexity of the carbon cycle within these ecosystems. In this prospective we discuss two areas of investigation that require further scrutiny: (1) why organic carbon is stabilized in seagrass sediments, and (2) how long organic carbon resides within these sediments. By delving into these topics, pointing out current pitfalls, and highlighting methodological advances, our motive is to focus future efforts and provide a frame work to manage the complexity found within the diverse seagrass bioregions. The high rate of seagrass degradation and loss, …

Older Australians Can Achieve High Adherence To The Mediterranean Diet During A 6 Month Randomised Intervention; Results From The Medley Study, Courtney Davis, Jonathan M. Hodgson, Janet Bryan, Manohar Garg, Richard Woodman, Karen Murphy

Research outputs 2014 to 2021

Adherence to a Mediterranean diet (MedDiet) is thought to be achievable in non-Mediterranean regions, but this has yet to be investigated. We aimed to determine if an older Australian population could adhere to a MedDiet for six months. We conducted a randomised, parallel dietary intervention trial with two dietary arms: the Mediterranean diet (MedDiet) group and the habitual diet (HabDiet) control group. A 15-point Mediterranean diet adherence score and food and nutrient intakes were estimated from three-day weighed food records collected at baseline, two and four months. Erythrocyte fatty acids, serum carotenoids and urinary metabolites were assessed at baseline, three …

Effects Of Cluster Sets And Rest-Redistribution On Mechanical Responses To Back Squats In Trained Men, James J. Tufano, Jenny A. Colon, Sophia Nimphius, Lee E. Brown, Alex Petkovic, Justin Frick, Greg Haff

Research outputs 2014 to 2021

Eight resistance-trained men completed three protocols separated by 48-96 hours. Each protocol included 36 repetitions with the same rest duration, but the frequency and length of rest periods differed. The cluster sets of four (CS4) protocol included 30 s of rest after the 4th, 8th, 16th, 20th, 28th, and 32nd repetition in addition to 120 s of rest after the 12th and 24th repetition. For the other two protocols, the total 420 s rest time of CS4 was redistributed to include nine sets of four repetitions (RR4) with 52.5 s of rest after every four repetitions, or 36 sets of …

Seagrass Halophila Ovalis Is Affected By Light Quality Across Different Life History Stages, Simone Strydom, Kathryn Mcmahon, Gary A. Kendrick, John Stratton, Paul Lavery

Research outputs 2014 to 2021

Seagrass meadows provide crucial ecosystem services to the coastal zone but are threatened globally. Seagrass loss to date has mainly been attributed to anthropogenic activities that reduce light quantity (amount of photosynthetic photon flux density), such as dredging, flooding and eutrophication. However, light quality (wavelengths of light within the visible spectrum) is also altered by these anthropogenic stressors. This study addressed the effect of light quality changes on seagrasses. Aquarium-based experiments were conducted to determine whether the seagrass Halophila ovalis (R.Br.) Hook f. responds to different light quality treatments. Separate experiments were performed in which adults, seeds or seedlings were …

New Graduate Registered Nurses’ Knowledge Of Patient Safety And Practice: A Literature Review, Melanie Murray, Deborah Sundin, Vicki Cope

Research outputs 2014 to 2021

Aims and objectives

To critically appraise available literature and summarise evidence pertaining to the patient safety knowledge and practices of new graduate registered nurses.

Background

Responsibility for patient safety should not be limited to the practice of the bedside nurses, rather the responsibility of all in the healthcare system. Previous research identified lapses in safety across the health care, more specifically with new practitioners. Understanding these gaps and what may be employed to counteract them is vital to ensuring patient safety.

Design

A focused review of research literature.

Methods

The review used key terms and Boolean operators across a 5-year …

Hopeful Monsters - In Defense Of Quests To Rediscover Long-Lost Species, David M. Watson, Robert A. Davis

Research outputs 2014 to 2021

Wild goose chase, snipe hunt, fool’s errand—these retorts typify responses of many biologists to news that someone is searching for a species considered extinct. Although these ventures can damage reputations and may offer false hope regarding the finality of extinction, genuine conservation gains often result, even for those quests that prove unsuccessful. As well as enhanced protection for regions where rediscovered species persist and new information of direct management relevance for co-occurring species, well-planned searches for long-lost species represent valuable engagement opportunities to raise awareness in the wider community about biodiversity conservation and science generally. Indeed, we suggest that “Lazarus …

Pso Algorithm For An Optimal Power Controller In A Microgrid, Waleed Al-Saedi, Stefan Lachowicz, Daryoush Habibi, Octavian Bass

Research outputs 2014 to 2021

This paper presents the Particle Swarm Optimization (PSO) algorithm to improve the quality of the power supply in a microgrid. This algorithm is proposed for a real-time selftuning method that used in a power controller for an inverter based Distributed Generation (DG) unit. In such system, the voltage and frequency are the main control objectives, particularly when the microgrid is islanded or during load change. In this work, the PSO algorithm is implemented to find the optimal controller parameters to satisfy the control objectives. The results show high performance of the applied PSO algorithm of regulating the microgrid voltage and …

Effects Of Different Exercise Modalities On Fatigue In Prostate Cancer Patients Undergoing Androgen Deprivation Therapy: A Year-Long Randomised Controlled Trial, Dennis Taaffe, Robert Newton, Nigel Spry, David Joseph, Suzanne K. Chambers, Robert Gardiner, Brad Wall, Prue Cormie, Kate Bolam, Daniel A. Galvao

Research outputs 2014 to 2021

Background

Physical exercise mitigates fatigue during androgen deprivation therapy (ADT); however, the effects of different exercise prescriptions are unknown.

Objectives

To determine the long-term effects of different exercise modes on fatigue in prostate cancer patients undergoing ADT.

Design, setting, and participants

Between 2009 and 2012, 163 prostate cancer patients aged 43–90 y on ADT were randomised to exercise targeting the musculoskeletal system (impact loading + resistance training; ILRT; n = 58), the cardiovascular and muscular systems (aerobic + resistance training; ART; n = 54), or to usual care/delayed exercise (DEL; n = 51) for 12 mo across university-affiliated exercise clinics …

Exercise Medicine For Advanced Prostate Cancer, Nicolas H. Hart, Daniel A. Galvao, Robert Newton

Research outputs 2014 to 2021

Purpose of review:

Exercise is a provocative medicine, known for its preventive, complimentary and rehabilitative role in the management of cancer. Impressively, exercise is also emerging as a synergistic and targeted medicine to enhance symptom control, modulate tumour biology and delay disease progression, with the potential to increase overall survival. Given the complex clinical presentation of advanced prostate cancer patients and their omnipresent comorbidities, this review describes the current and potential role of exercise medicine in advanced prostate cancer.

Recent findings:

Exercise has been shown to be safe, feasible and effective for advanced prostate cancer patients, inclusive of patients with …

Use Of Ultrasound By Registered Nurses—A Systematic Literature Review, Ulrich Steinwandel, Nicholas Gibson, James Charles Rippey, Amanda Towell, Johan Rosman

Research outputs 2014 to 2021

Background:

In Western Australia (WA), most stable patients undergoing haemodialysis receive treatment in a satellite setting where no doctors are on-site during treatment hours, so nurses must make critical decisions about fluid removal. Some patients regularly experience adverse events during dialysis (intradialytic), often due to excessive ultrafiltration goals, with intradialytic hypotension being particularly challenging. Ultrasound of the inferior vena cava has been previously demonstrated being a rapid and non-invasive method for volume assessment on haemodialysis patients, thus could hold valuable information for the treating nurse.

Aim:

This paper examines the existing literature in regards to the use of …

The Skin Microbiome: Impact Of Modern Environments On Skin Ecology, Barrier Integrity, And Systemic Immune Programming, Susan Prescott, Danica-Lea Larcombe, Alan Logan, Christina West, Wesley Burks, Luis Caraballo, Michael Levin, Eddie Van Etten, Pierre Horwitz, Anita Kozyrskyj, Dianne Campbell

Research outputs 2014 to 2021

Skin barrier structure and function is essential to human health. Hitherto unrecognized functions of epidermal keratinocytes show that the skin plays an important role in adapting whole-body physiology to changing environments, including the capacity to produce a wide variety of hormones, neurotransmitters and cytokine that can potentially influence whole-body states, and quite possibly, even emotions. Skin microbiota play an integral role in the maturation and homeostatic regulation of keratinocytes and host immune networks with systemic implications. As our primary interface with the external environment, the biodiversity of skin habitats is heavily influenced by the biodiversity of the ecosystems in which …

Insulin Resistance Is Associated With Reductions In Specific Cognitive Domains And Increases In Csf Tau In Cognitively Normal Adults, Simon M. Laws, Scott Gaskin, Amy Woodfield, Velandai K. Srikanth, David G. Bruce, Paul E. Fraser, Tenielle Porter, Philip N. Newsholme, Nadeeja Wijesekara, Samantha C. Burnham, Vincent Doré, Qiaoxin Li, Paul T. Maruff, Colin L. Masters, Stephanie R. Rainey-Smith, Christopher C. Rowe, Olivier Salvado, Victor L. Villemagne, Ralph N. Martins, Giuseppe Verdile

Research outputs 2014 to 2021

Growing evidence supports the hypothesis that type 2 diabetes (T2D) increases the risk of developing dementia. Experimental evidence from mouse models demonstrates that the induction of T2D/insulin resistance (IR) can promote the accumulation of Alzheimer's disease (AD) pathological features. However, the association of T2D with pathological and clinical phenotypes in humans is unclear. Here we investigate the relationship of indices of IR (HOMA-IR) and pancreatic β-cell function (HOMA-B) with cognitive performance across several domains (Verbal/Visual Episodic Memory, Executive Function, Language and a measure of Global cognition) and AD biomarkers (CSF Aβ42, T-tau/P-tau, hippocampal volume and neocortical Aβ-amyloid burden). We reveal …

Over-Provision Of Discretionary Foods At Childcare Dilutes The Nutritional Quality Of Diets For Children, Ruth M. Wallace, Leesa N. Costello, Amanda Devine

Research outputs 2014 to 2021

The childcare setting can significantly influence the lifelong eating habits and health outcomes of children.It is ideal for health-promoting interventions that optimise the provision of nutritious food and nutrition education. Unfortunately, these interventions are neither offered nor promoted in many childcare settings. Recent studies have indicated an increased risk of overweight/obesity with childcare attendance, which if present in early life is associated with increased risk of chronic disease and reduced psychological wellbeing.

"You Are No Longer Creative When You Give Up": Technical Theatre’S Creative Sleight Of Hand, Maggie Phillips, Renee Newman

Research outputs 2014 to 2021

The Western Australian Academy of Performing Arts at Edith Cowan University contains vocational education training programmes including technical design courses with broad reach covering arts administration, stage management, stage lighting, sound design, set and costume design. In an unsettling problematic, teachers and students in the broadly themed Production and Design courses often find themselves isolated from the other creative disciplines or battle with the perception that their work is in fact not creative but entirely the technical implementation of ‘someone’s else’s vision’. This approach seems to dismiss the creative thinking required in the development and orchestration of the design and …

The Value Of Images: Using Pictures And Words To Enhance Intercultural And International Communication, Alun Price, Stuart Medley

Research outputs 2014 to 2021

As our institution expands its international offerings it is increasingly important to be able to communicate with intelligent and able people who have not had much exposure to learning in English. It has been difficult however to communicate verbally due to the low English proficiency of international clients and lack of language skills on the part of the Australian participants. This experience in international communication has highlighted the need for alternative methods of communicating information. In communicating with the students from a Japanese university I found that using diagrams and sketches worked well for example, in creating a cartoon of …

Broadband Router Security: History, Challenges And Future Implications, Patryk Szewczyk, Rose Macdonald

Research outputs 2014 to 2021

Consumer grade broadband routers are integral to accessing the Internet and are primarily responsible for the reliable routing of data between networks. Despite the importance of broadband routers, security has never been at the forefront of their evolution. Consumers are often in possession of broadband routers that are rich in consumer-orientated features yet riddled with vulnerabilities that make the routers susceptible to exploitation. This amalgamation of theoretical research examines consumer grade broadband routers from the perspective of how they evolved, what makes them vulnerable, how they are targeted, and the challenges concerning the application of security. The research further explores …

The Land Still Speaks: Ni, Katitj!, Sandra Wooltorton, Pierre Horwitz, Len Collard

Research outputs 2014 to 2021

In this paper we reflect on land, language and law in Wiilman Noongar Boodjar (Country), which has recently become known as the Upper Blackwood River Catchment in the South West of Western Australia. By intertwining historical perspectives with Western science and Noongar katitjiny (knowledge and understandings, or rationality) we argue that this region is alive, that it does have a language and that there is a message to be heard. History shows that the voice of the land might be diminishing, but signs of a transformation are evident, where a conciliation of these voices enables real listening to ancient insights …

Having A Voice And Being Heard: Photography And Children's Communication Through Photovoice, Panizza Allmark, Kylie J. Stevenson, Talhy Stotzer

Research outputs 2014 to 2021

Photography can be a powerful tool for self-expression. For those who are less empowered in our community, such as children, photography can provide a voice through images. It is a form of creativity that can provide a new way of seeing. This article examines the potential of photovoice as a meaningful way to develop critical thinking and communication approaches. Photovoice is a method of participatory action research that is innovative in the ways by which it enables participants to identify and represent their surroundings. Photovoice has been used in anthropology, public health, social work and education, and is associated with …

The Disrupted Screen Production Sector Reveals Patterns Of Consistency, Cathy Henkel, Andrea Michell, Lelia Green

Research outputs 2014 to 2021

This article interrogates the impact of digital technologies, including the internet, as disrupters of traditional screen production industries. The privileging of direct links between creators and audiences, as seen in myriad new content delivery platforms, including YouTube, Netflix, Vimeo and Amazon, underpins the foundation of an emerging communication world where access, voice, diversity and engagement are radically altered from what was once thought of of as screen production. Yet in the ensuing chaos, screen content creators from diverse cultures and experience are finding patterns of consistency in their navigation of this emerging production environment. This article focuses on how screen …

Using Phenomenography To Bridge The Gap Between Research And Practice: A Meta-Analysis Of Three Phenomenographic Studies, Nicole Johnston, A.M. Salaz

Research outputs 2014 to 2021

Introduction

The findings of three recent phenomenographic studies conducted by a practitioner-researcher team (the information literacy experiences of English as a foreign language (EFL) students, how international branch campus faculty members experience the academic library and the open access experiences of faculty members in online education) are analysed to discover what practical implications were revealed from the categories of description that can be used in practice.

Method

Meta-analysis of the categories of description of three phenomenographic studies was conducted.

Analysis

Categories of description were analysed iteratively in order to identify which library services and processes could be informed by the …

Insider Misuse Identification Using Transparent Biometrics, Nathan Clarke, Fudong Li, Abdulrahman Alruban, Steven Furnell

Research outputs 2014 to 2021

Insider misuse is a key threat to organizations. Recent research has focused upon the information itself – either through its protection or approaches to detect the leakage. This paper seeks a different approach through the application of transparent biometrics to provide a robust approach to the identification of the individuals who are misusing systems and information. Transparent biometrics are a suite of modalities, typically behavioral-based that can capture biometric signals covertly or non-intrusively – so the user is unaware of their capture. Transparent biometrics are utilized in two phases a) to imprint digital objects with biometric-signatures of the user who …

‘The Charity Model Is Broken’: Crowdfunding As A Way To Democratise, Diversify And Grow Funding For Social Change?, Debbie Rodan, Jane Mummery, Cathy Henkel

Research outputs 2014 to 2021

Crowdfunding has become a billion dollar business for the digital platforms that enable it. Although crowdfunding has been used for over a decade to fund a variety of artistic or entrepreneurial individual and collective projects, more recently there has been an uptake by individuals and groups wishing to effect social change. Indeed, there have been arguments that crowdfunding’s capacity to tap into personal networks and ‘like-minded’ people – via social media networks, email and the internet – is reformatting funding for social change. Insofar as crowdfunding means that there are no gatekeepers such as government or corporate policy-makers able to …

Addressing Calcium Carbonate Cycling In Blue Carbon Accounting, Peter I. Macreadie, Oscar Serrano, Damien T. Maher, Carlos M. Duarte, John Beardall

Research outputs 2014 to 2021

Scientific Significance Statement

There is considerable interest in measuring the capacity of the world's ecosystems to trap and store excess atmospheric carbon dioxide to mitigate human‐induced climate change. Blue carbon describes the carbon storage potential of vegetated coastal ecosystems including tidal marshes, mangroves, and seagrasses. Efforts are now underway to include blue carbon in global carbon offset schemes by managing these ecosystems to enhance carbon sequestration by focusing on their effect on organic carbon processing. However, it is unclear what role inorganic carbon processing in blue carbon ecosystems plays in their overall carbon sequestration. Here, we argue that there are …