Digital Commons Network^™

Earthquake Load Attenuation Using Eps Geofoam Buffers In Rigid Wall Applications, Richard J. Bathurst, S Zarnani

Research outputs 2013

The paper is a synthesis of previously published work by the authors that is focused on the use of expanded polystyrene (EPS) geofoam buffers for seismic load attenuation against rigid basement and soil retaining walls. The paper begins with a brief description of the first documented field application followed by a description of physical 1 m-high reduced-scale shaking table tests that provided the first "proof of concept". Next, details of the development and verification of a displacement-based model and a FLAC numerical model are described and simulation results that were verified against the physical shaking table tests presented. The numerical …

Through The Viewfinder: Reflecting On The Collection And Analysis Of Classroom Video Data, Angela Fitzgerald, Mark Hackling, Vaille Dawson

Research outputs 2013

The possibilities inherent in the collection and use of video footage point to an important innovation for classroom research. Unfortunately, researchers often experience uncertainty about incorporating video into their methodological approach as it can present a potential minefield of operational, technical, and ethical issues that require consideration and negotiation. Nevertheless, with the increased emphasis on the use of digital technologies, the timing is right to engage in more in-depth discussions about the role of video data in education research. In contributing to this discussion, this article unpacks several issues connected to the use of video technology as a tool for …

Expertise Paradigms For Investigating The Neural Substrates Of Stable Memories, Guillermo Campitelli, Craig Speelman

Research outputs 2013

No abstract available.

How Mean Is The Mean?, Craig P. Speelman, Marek Mcgann

Research outputs 2013

In this paper we voice concerns about the uncritical manner in which the mean is often used as a summary statistic in psychological research. We identify a number of implicit assumptions underlying the use of the mean and argue that the fragility of these assumptions should be more carefully considered. We examine some of the ways in which the potential violation of these assumptions can lead us into significant theoretical and methodological error. Illustrations of alternative models of research already extant within Psychology are used to explore methods of research less mean-dependent and suggest that a critical assessment of the …

Physical Activity: Its Implication On Attention Span And Quality Of Life In Children With Autism Spectrum Disorders, Beron W.Z. Tan, Lynne Cohen, Julie A. Pooley

Research outputs 2013

This study examined the effects of physical activity on the attention span and health-related quality of life (HRQoL) of autism spectrum disorder (ASD) children in Singapore. Male participants (N = 12) aged 2-6 years, diagnosed with ASD were randomly assigned to either a physical activity or non-physical activity group. In the physical activity group, participants were administered 8 tri-cycling sessions; both groups of participants were measured for their attention span, and their parents completed the HRQoL questionnaires. Results indicate that as the exercise increases, the physical activity group demonstrated increasingly longer duration of attention span. These results extend the findings …

Patterns Of Physical And Psychological Development In Future Teenage Mothers, Daniel Nettle, Thomas E. Dickins, David A. Coall, Paul De Monrnay Davis

Research outputs 2013

Background and objectives: Teenage childbearing may have childhood origins and can be viewed as the outcome of a coherent reproductive strategy associated with early environmental conditions. Life-history theory would predict that where futures are uncertain fitness can be maximized through diverting effort from somatic development into reproduction. Even before the childbearing years, future teenage mothers differ from their peers both physically and psychologically, indicating early calibration to key ecological factors. Cohort data have not been deliberately collected to test life-history hypotheses within Western populations. Nonetheless, existing data sets can be used to pursue relevant patterns using socioeconomic variables as indices …

Prediction Models For Solitary Pulmonary Nodules Based On Curvelet Textural Features And Clinical Parameters, Jing-Jing Wang, Hai-Feng Wu, Tao Sun, Xia Li, Wei Wang, Li-Xin Tao, Da Huo, Ping-Xin Lv, Wen He, Xiu-Hua Guo

Research outputs 2013

Lung cancer, one of the leading causes of cancer-related deaths, usually appears as solitary pulmonary nodules (SPNs) which are hard to diagnose using the naked eye. In this paper, curvelet-based textural features and clinical parameters are used with three prediction models [a multilevel model, a least absolute shrinkage and selection operator (LASSO) regression method, and a support vector machine (SVM)] to improve the diagnosis of benign and malignant SPNs. Dimensionality reduction of the original curvelet-based textural features was achieved using principal component analysis. In addition, non-conditional logistical regression was used to find clinical predictors among demographic parameters and morphological features. …

Cooking From Life: The Real Recipe For Street Food In Ha Noi, Lelia Green, Van H. Nguyen

Research outputs 2013

No abstract provided.

Creativity In An Online Community As A Response To The Chaos Of A Breast Cancer Diagnosis, Cynthia Witney, Lelia Green, Leesa Costello, Vanessa Bradshaw

Research outputs 2013

No abstract provided.

Toward A Phen(Omen)Ology Of The Seasons: The Emergence Of The Indigenous Weather Knowledge Project (Iwkp), John Charles Ryan

Research outputs 2013

Since European settlement, the Western calendar has insufficiently accounted for the seasonal nuances and multiple temporalities of Australia. Beginning with Tim Entwistle’s recent proposal to revise the four-season Australian norm, this article traces the emergence of the Western calendar in Europe and its institutionalization ‘Down Under.’ With its emphasis on land-based calendars, the Indigenous Weather Knowledge Project (IWKP) is a partnership between Aboriginal communities and the Bureau of Meteorology aimed at preserving and promoting knowledge of the endemic seasons of Australian regions. As the most recent addition to the IWKP, the six-season Nyoongar calendar of the South-West of Western Australia …

International Perceptions Of Stalking And Responsibility: The Influence Of Prior Relationship And Severity Of Behavior, Adrian J. Scott, Nikki Rajakaruna, Lorraine Sheridan, Emma Sleath

Research outputs 2013

This study investigates the influence of prior relationship and severity of behavior on perceptions of stalking and responsibility with a combined sample of 1,080 members of the community from Australia, the United States, and the United Kingdom. Participants were presented with 1 of 12 versions of a hypothetical stalking scenario and responded to scale items regarding the behavior of a male perpetrator toward a female target. Prior relationship and severity of behavior influenced perceptions of stalking and responsibility, and the pattern of findings was consistent across the three countries. The perpetrator’s behavior was perceived to constitute stalking, and necessitate police …

The Influence Of Prior Relationship On Perceptions Of Stalking: A Comparison Of Laypersons, Nonspecialist Police Officers And Specialist Police Officers, Adrian J. Scott, Keri Nixon, Lorraine Sheridan

Research outputs 2013

The current research examined the influence of prior relationship on perceptions of stalking, and compared the perceptions of laypersons, nonspecialist police officers, and specialist police officers. Two studies employed experimental designs where participants were presented with one of three vignettes in which the nature of the prior relationship was manipulated so that the perpetrator and victim were portrayed as strangers, acquaintances, or ex-partners. Participants comprised 101 nonspecialist police officers and 108 laypersons in Study 1, and 49 specialist police officers and 49 nonspecialist police officers in Study 2. Findings indicate that nonspecialist police officers and laypersons shared the common misperception …

Framing And Perceptions Of Stalking: The Influence Of Conduct Severity And The Perpetrator-Target Relationship, Adrian J. Scott, Nikki Rajakaruna, Lorraine P. Sheridan

Research outputs 2013

Research has demonstrated that the way in which questions are presented (i.e. framed) has the capacity to influence responses to subsequent questions. In the context of stalking, perception research has often been framed in terms of whether or not particular behaviours constitute stalking. The current research investigates whether the framing of the opening question (question frame), conduct severity and the perpetrator target relationship influence perceptions of stalking. Two studies employed experimental 3 3 independent factorial designs: one to examine question frame and conduct severity, the other to examine question frame and the perpetrator target relationship. Participants in both studies (total …

Understanding Perceptions Of Stalking: The Impact Of Additional Contextual Information Regarding The Breakdown Of Relationships, Simon C. Duff, Adrian J. Scott

Research outputs 2013

Purpose: Perception research has demonstrated that people view stranger stalkers to be more persistentand dangerous than ex-partner stalkers. Although these findings are consistent with the outcome of legal processes where stranger stalkers are more likely to be convicted, they contrast with the findings of national surveys and applied research where ex-partner stalkers represent the most persistent and dangerous relational subtype. The aim of the current study is to further examine the influence of prior relationship on perceptions of stalking by considering the impact of additional contextual information regarding the breakdown of ex-partners’ relationships for the first time.

Design/methodology/approach: In this …

The Attribution Of Responsibility In Cases Of Stalking, Adrian J. Scott, Jeffery Gavin, Emma Sleath, Lorraine Sheridan

Research outputs 2013

There is a general belief that stranger stalkers present the greatest threat to the personal safety of victims, despite national victimisation surveys and applied research demonstrating that ex-partner stalkers are generally more persistent and violent. The just-world hypothesis offers a possible explanation for this apparent contradiction. The current research used nine hypothetical scenarios, administered to 328 university students, to investigate the assumptions that underlie attributions of responsibility in cases of stalking. It explores whether these assumptions are consistent with the proposed mechanisms of the just-world hypothesis, and whether they vary according to the nature of the perpetrator–victim relationship and conduct …

Employability Skill Development In Work-Integrated Learning: Barriers And Best Practice, Denise Jackson

Research outputs 2013

Work-integrated learning (WIL) is widely considered instrumental in equipping new graduates with the required employability skills to function effectively in the work environment. Evaluation of WIL programs in enhancing skill development remains predominantly outcomes-focused with little attention to the process of what, how and from whom students acquire essential skills during work placement. This paper investigates best practice in the classroom and placement activities which develop employability skills and identifies factors impeding skill performance during WIL, based on survey data from 131 undergraduates across different disciplines in an Australian university. What students actually experienced during placement, or what they felt …

Activity Profiles And Demands Of Seasonal And Tournament Basketball Competition, Markus J. Klusemann, David B. Pyne, Will G. Hopkins, Eric J. Drinkwater

Research outputs 2013

Competition-specific conditioning for tournament basketball games is challenging, as the demands of tournament formats are not well characterized.

Purpose: To compare the physical, physiological, and tactical demands of seasonal and tournament basketball competition and determine the pattern of changes within an international tournament.

Methods: Eight elite junior male basketball players (age 17.8 ± 0.2 y, height 1.93 ± 0.07 m, mass 85 ± 3 kg; mean ± SD) were monitored in 6 seasonal games played over 4 mo in an Australian second-division national league and in 7 games of an international under-18 tournament played over 8 days. Movement patterns and …

Service Design 101: The Joy And Challenge Of Introducing Service Design Into An Undergraduate Design Curriculum, Christopher Kueh, Stuart Medley, Alun Price

Research outputs 2013

This paper describes the introduction of service design into a university design course that previously promoted itself as industry-based and practice-driven—but which had not necessarily kept pace with the contemporary meanings of these terms. The followings discuss the need to teach service design in Western Australia. These are being highlighted through the latest development in business community, government and NGOs that seek innovation and sustainability. Edith Cowan University Design Department therefore is committed to teach socially-focused projects (such as wayfinding; civic identity; designing out crime) connect students with the public and real clients through collaborative practice and social design workshops. …

Protected Species: Perspectives On Organisational Life, Maryam Omari, Megan Paull, Julie A. Crews

Research outputs 2013

Analogies can be drawn between a modern organisation and a complex ecosystem. In both, the players compete for scarce resources; survival often depends on how effectively an individual, organism or group capitalises on what is available to them. In natural settings, the laws of nature provide a backdrop to relationships, including where each individual or group is positioned in the hierarchy. In such settings, unusual and complex interrelationships can be formed where groups either assist or manipulate each other to survive. In organisational settings, the laws and boundaries are less clear, context specific and subject to organisational cultures and norms, …

Recent Developments In Magneto-Optic Garnet-Type Thin-Film Materials Synthesis, Mohammad Nur E Alam, Mikhail Vasiliev, Viacheslav Kotov, Kamal Alameh

Research outputs 2013

Magneto-optic (MO) garnets are used in a range of applications in nanophotonics, integrated optics, communications and imaging. Bi-substituted iron garnets of different compositions are the most useful class of materials in applied magneto- optics due to their excellent MO properties (large Faraday effect) and record-high MO figure of merit among all semi- transparent dielectrics. It is highly desirable to synthesise garnets which possess simultaneously a high MO figure of merit and large uniaxial magnetic anisotropy. However, the simultaneous optimization of several material properties and parameters can be difficult in single-layer garnet thin films, and it is also challenging to prepare …

Testing A Distributed Denial Of Service Defence Mechanism Using Red Teaming, Samaneh Rastegari, Philip Hingston, Chiou-Peng Lam, Murray Brand

Research outputs 2013

The increased number of security threats against the Internet has made communications more vulnerable to attacks. Despite much research and improvement in network security, the number of denial of service (DoS) attacks has rapidly grown in frequency, severity, and sophistication in recent years. Thus, serious attention needs to be paid to network security. However, to create a secure network that can stay ahead of all threats, detection and response features are real challenges. In this paper, we look at the the interaction between the attacker and the defender in a Red Team/Blue Team exercise. We also propose a quantitative decision …

Usefulness Of Infeasible Solutions In Evolutionary Search: An Empirical And Mathematical Study, Lyndon While, Philip Hingston

Research outputs 2013

When evolutionary algorithms are used to solve constrained optimization problems, the question arises how best to deal with infeasible solutions in the search space. A recent theoretical analysis of two simple test problems argued that allowing infeasible solutions to persist in the population can either help or hinder the search process, depending on the structure of the fitness landscape. We report new empirical and mathematical analyses that provide a different interpretation of the previous theoretical predictions: that the important effect is on the probability of finding the global optimum, rather than on the time complexity of the algorithm. We also …

Mobile Games With Intelligence: A Killer Application?, Philip Hingston, Clare Bates Congdon, Graham Kendall

Research outputs 2013

Mobile gaming is an arena full of innovation, with developers exploring new kinds of games, with new kinds of interaction between the mobile device, players, and the connected world that they live in and move through. The mobile gaming world is a perfect playground for AI and CI, generating a maelstrom of data for games that use adaptation, learning and smart content creation. In this paper, we explore this potential killer application for mobile intelligence. We propose combining small, light-weight AI/CI libraries with AI/CI services in the cloud for the heavy lifting. To make our ideas more concrete, we describe …

Optical Fiber Bragg Grating Based Intrusion Detection Systems For Homeland Security, Gary Allwood, Steven Hinckley, Graham Wild

Research outputs 2013

This paper describes the use of optical Fiber Bragg grating (FBG) sensors for use in various intrusion detection systems for homeland security. We show that a FBG sensor can be used effectively as an embedded in-ground acoustic sensor, sensitive enough to detect the acoustic emissions associated with walking on a concrete surface. Also, the FBG can be used as an in-ground pressure switch for intrusion detection through temporary flooring materials, such as tiles and wooden laminate. In addition, we verify the use of FBGs as in-fence perimeter breach detectors. Finally, we show how an FBG can be used as a …

E-Invigilator: A Biometric-Based Supervision System For E-Assessments, Nathan L. Clarke, P Dowland, Steven M. Furnell

Research outputs 2013

The creation of Virtual Learning Environments (VLEs) have revolutionized the online delivery of learning materials, from traditional lectures slides through to podcasts, blogs and wikis. However, such advances in how we assess such learning have not evolved - with physical attendance at proctored exams still a necessity for formal assessments. This paper presents a novel model to enable remote and electronic invigilation of students during formal assessment. The approach utilizes transparent authentication to provide for a non-intrusive and continuous verification of the candidates identity throughout the examination timeframe. A prototype is developed and a technology evaluation of the platform demonstrates …

Modelling Of Polyaniline For Wi-Fi Electromagnetic Interference Shielding, Whamid Al-Shabib, Stefan W. Lachowicz

Research outputs 2013

In this paper COMSOL model is used to model the s-parameters of the electromagnetic shielding of layer/layers of Polyaniline (PAni) for Wi-Fi Electromagnetic Interference (EMI) shielding. PAni has a good future for minimizing the problems with Electromagnetic Shielding (EMS), and will be increasingly be used to provide protection from Electromagnetic Radiation (EMR) and Electromagnetic Interference (EMI). With the increased development in Wi-Fi and telecommunications equipment, a simple model is required to test for transmission losses. In this paper the electromagnetic radiation from antenna, positioned 30cm from PAni shielding device is modelled using COMSOL 4.2. The paper predicts the radiation reduction …

Oscillation Built-In-Self-Test For Adc Linearity Testing In Deep Submicron Cmos Technology, Koay Soon Chan, Nuzrul Fahmi Nordin, Kim Chon Chan, Terk Zyou Lok, Chee Wai Yong, Adam Osseiran

Research outputs 2013

This paper proposes an Oscillation BIST (OBIST) that is meant to test ADCs fabricated in sub 100nm processes. The design is intended to be capable of testing a 10-bit ADC that was designed in 40nm CMOS. The design scheme presents a simple analog stimulus generator that was designed in 40nm CMOS together with schematic based simulation results. There is also a description of a calibration circuit and a highlevel implementation of a BIST control system to run the BIST and to calculate static parameters such as Differential Non-linearity (DNL) and Integral Non-linearity (INL). Simulation results for the analog stimulus generator …

Contextual Support For Innovation In An Australian Financial Services Firm, Agung N. Fahrudi, Denise E. Gengatharen, Yuliani Suseno, Craig Standing

Research outputs 2013

Organizational learning can facilitate innovation and it is affected by internal and external contexts. Leaders can provide internal contextual support for learning to occur in the organization in order to respond to changes in external contexts. However, there are limited studies about how leaders affect innovation in financial services firms. This paper applies Crossan et al.’s (1999) 4I framework to examine the impact of internal and external factors on an organization’s learning process and the extent of its innovation. An on-going case study of a large Australian financial services firm is used to gain insights about contextual support for innovation. …

Using Semiotic Resources When Building Images Of The Part-Whole Model Of Fractions, Paula M. Mildenhall

Research outputs 2013

This paper reports an exploration in to the use of a combination of semiotic resources when teaching the part- whole model of fractions. The study involved a single case study of one class teacher and six students in an Australian primary classroom. Using video as the predominate research tool it was possible to describe how gesture and language were combined with two and three dimensional representations of folding paper, fraction walls and number lines to build images that appeared to enhance student understanding of the part- whole of fractions. I conjecture that the variety semiotic resources including gesture should have …

Modelling The Volatility-Timing Of Funds Under Cpf Investment Theme, X Shen, Albert K. Tsui, Zhaoyong Zhang

Research outputs 2013

The performance measure of funds has been an important topic in the past few decades. In recent years the conditional models on return and volatility have become popular in studying the funds’ performance measure, but most of these studies focus on the US funds and a few on the Asian-based funds. The purpose of this study is to examine the volatility-timing performance of Singapore-based funds under the CPF (Central Provident Fund) Investment Scheme and non-CPF linked funds by taking into account of the currency risk effect on internationally managed funds. The CPF investment scheme was introduced in 1986 by the …