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Probabilities and possibilities within Australia's future : Rethinking educational research

- Lee, Alison, Johnson, Nicola

Procedural modeling of water caustics and foamy water for cartoon animation

- Liao, Jing, Yu, Jinhu, Jia, Long

  • Authors: Liao, Jing , Yu, Jinhu , Jia, Long
  • Date: 2010
  • Type: Text , Conference paper
  • Relation: Paper presented at 18th Pacific Conference on Computer Graphics and Applications, Pacific Graphics 2010 p. 1-4
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  • Description: We propose a method for procedural modeling and animation of cartoon water effects such as water caustics and foamy water. In our method we emulate the visual abstraction of these cartoon effects by the use of Voronoi diagrams and the motion abstraction by designing relevant controlling mechanisms corresponding to each effect. Our system enables the creation of cartoon effects with minimal intervention from the animator. Through high-level initial specification, the effects are animated procedurally in the style of hand-drawn cartoons. © 2010 IEEE.

Profiling phishing emails based on hyperlink information

- Yearwood, John, Mammadov, Musa, Banerjee, Arunava

  • Authors: Yearwood, John , Mammadov, Musa , Banerjee, Arunava
  • Date: 2010
  • Type: Text , Conference paper
  • Relation: Paper presented at 2010 International Conference on Advances in Social Network Analysis and Mining, ASONAM 2010, Odense : 9th-11th August 2010 p. 120-127
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  • Description: In this paper, a novel method for profiling phishing activity from an analysis of phishing emails is proposed. Profiling is useful in determining the activity of an individual or a particular group of phishers. Work in the area of phishing is usually aimed at detection of phishing emails. In this paper, we concentrate on profiling as distinct from detection of phishing emails. We formulate the profiling problem as a multi-label classification problem using the hyperlinks in the phishing emails as features and structural properties of emails along with whois (i.e.DNS) information on hyperlinks as profile classes. Further, we generate profiles based on classifier predictions. Thus, classes become elements of profiles. We employ a boosting algorithm (AdaBoost) as well as SVM to generate multi-label class predictions on three different datasets created from hyperlink information in phishing emails. These predictions are further utilized to generate complete profiles of these emails. Results show that profiling can be done with quite high accuracy using hyperlink information. © 2010 Crown Copyright.

Program logic: A framework for health program design and evaluation the Pap nurse in general practice program

- Hallinan, Christine

  • Authors: Hallinan, Christine
  • Date: 2010
  • Type: Text , Journal article
  • Relation: Australian Journal of Primary Health Vol. 16, no. 4 (2010), p. 319-325
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  • Description: In this paper, program logic will be used to 'map out' the planning, development and evaluation of the general practice Pap nurse program in the Australian general practice arena. The incorporation of program logic into the evaluative process supports a greater appreciation of the theoretical assumptions and external influences that underpin general practice Pap nurse activity. The creation of a program logic model is a conscious strategy that results an explicit understanding of the challenges ahead, the resources available and time frames for outcomes. Program logic also enables a recognition that all players in the general practice arena need to be acknowledged by policy makers, bureaucrats and program designers when addressing through policy, issues relating to equity and accessibility of health initiatives. Logic modelling allows decision makers to consider the complexities of causal associations when developing health care proposals and programs. It enables the Pap nurse in general practice program to be represented diagrammatically by linking outcomes (short, medium and long term) with both the program activities and program assumptions. The research methodology used in the evaluation of the Pap nurse in general practice program includes a descriptive study design and the incorporation of program logic, with a retrospective analysis of Australian data from 2001 to 2009. For the purposes of gaining both empirical and contextual data for this paper, a data set analysis and literature review was performed. The application of program logic as an evaluative tool for analysis of the Pap PN incentive program facilitates a greater understanding of complex general practice activity triggers, and also allows this greater understanding to be incorporated into policy to facilitate Pap PN activity, increase general practice cervical smear and ultimately decrease burden of disease. © La Trobe University 2010.

Project scheduling improvement using design structure matrix

- Gunawan, Indra, Ahsan, Kamrul

  • Authors: Gunawan, Indra , Ahsan, Kamrul
  • Date: 2010
  • Type: Text , Journal article
  • Relation: International Journal of Project Organisation and Management Vol. 2, no. 4 (2010 2010), p. 311-327
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  • Description: A challenging aspect of managing the development of complex projects is the notion of design iteration or rework. Traditional project management tools such as program evaluation and review technique (PERT), critical path method (CPM), and Gantt chart allow the modelling of sequential and parallel processes in projects, but they fail to address interdependency of feedback and iteration. Design structure matrix (DSM) is a new approach to project management, used to represent, analyse dependencies among tasks and show the order in which tasks are performed. In this paper, a case of the petroleum oil field development project is demonstrated. The project duration of the petroleum oil field development project is reduced significantly by applying the DSM method.

Properties of aged mixed nickel-cobalt hydroxide intermediates produced from acid leach solutions and subsequent metal recovery

- Jones, Andrew, Welham, Nicholas

  • Authors: Jones, Andrew , Welham, Nicholas
  • Date: 2010
  • Type: Text , Journal article
  • Relation: Hydrometallurgy Vol. 103, no. 1-4 (2010), p. 173-179
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  • Description: Synthetic mixed nickel-cobalt hydroxide precipitates (MHP) were produced containing varying levels of Ni, Co, Mn, Mg, Al, Fe, Cr, Cu, Zn and Si to understand and characterize the ageing processes and subsequent nickel and cobalt leach recovery. Precipitates were monitored over a 12 week period using X-ray diffraction (XRD), scanning electron microscopy (SEM) and leach tests in ammonia-ammonium carbonate solution. Manganese and cobalt incorporation into MHP was beneficial for subsequent nickel recovery; most likely preventing or slowing nickel-magnesium hydroxide formation. High magnesium MHP generally lowered subsequent nickel recovery due to its stability and slow leaching kinetics. Between 94-100% Ni and 84-100% Co were leached from nearly all high magnesium MHP precipitates after soaking in the leach solution for 72 h, except for the precipitate containing about 5% Al which only recovered 87% Ni and 61% Co. An XRD of this precipitate showed that it was much more amorphous than any other MHP whilst the XRD of the leach residues revealed a magnesium-aluminium hydrotalcite structure. Both nickel-magnesium hydroxide and hydrotalcite-like structures appear to inhibit nickel and cobalt recovery because of their slow leaching characteristics. © 2010 Elsevier B.V.
  • Description: 2003008226

Prospective application of a five-step regulatory assessment model to a proposed federal sperm donor registry in Australia: Is it in the public interest?

- Sawyer, Neroli

  • Authors: Sawyer, Neroli
  • Date: 2010
  • Type: Text , Journal article
  • Relation: Journal of law and medicine Vol. 17, no. 4 (2010), p. 608-616
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  • Description: It has been proposed that a nationally mandated donor registry be established in Australia to provide data for estimating the possible number of inadvertent half-sibling matings resulting from the multiple use of anonymous donors in donor insemination and to assist identity-release donors and their donor-inseminated children to establish contact. A five-step regulatory assessment model, as described by Johnson and Petersen in 2008, was applied prospectively to the proposed donor registry to identify public interest issues. The resultant issues concern the public ethical interest in child welfare; the public health interest in avoiding genetic abnormalities/disease; public socio-political and legal interests in avoiding inadvertent consanguineous relationships; public ethical and health interests in avoiding identity issues in the donor-inseminated child; and public socio-ethical interests in providing nationally mandated, comprehensive records of donor insemination outcomes. These results provide a basis for further discussion in regard to donor insemination legislation at the federal level.

Provisioning delay sensitive services in cognitive radio networks by opportunistically sharing spectrum from CSMA/CA networks

- Hasan, Rashidul, Murshed, Manzur

  • Authors: Hasan, Rashidul , Murshed, Manzur
  • Date: 2010
  • Type: Text , Conference paper
  • Relation: 12th IEEE International Conference on High Performance Computing and Communications p. 616-622
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  • Description: Cognitive radio network (CRN) users are inherently expected to experience widely varied delays and jitters due to the uncertainty in channel availability. Supporting delay sensitive real-time services through CRNs thus remains a challenging task. This paper presents a novel technique to provision QoS guarantee in CRNs by modeling the resultant channel of multiple primary networks and finding the optimum number of primary channels to support a desired level of expected latency. In doing so, this paper introduces a cognitive radio based MAC, which can effectively co-exists with primary CSMA/CA networks by accurately estimating the start of the spectrum holes, reliably modeling channel occupation by the primary users, and using event-driven sensing to adaptively control the sensing frequency and interval. Simulation results with ns-2.33 reveal that a CR network based on the proposed MAC can achieve the targeted service delay time by appropriately selecting optimal WLAN primary channels.

Psychological treatment for adolescent depression : Perspectives on the past, present, and future

- Hayes, Louise, Bach, Patricia, Boyd, Candice

  • Authors: Hayes, Louise , Bach, Patricia , Boyd, Candice
  • Date: 2010
  • Type: Text , Journal article
  • Relation: Behaviour Change Vol. 27, no. 1 (2010), p. 1-18
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  • Description: The objective of this review is to summarise the evidence for mindfulness and acceptance approaches in the treatment of adolescent depression. The article begins by summarising the outcomes of three broad approaches to the treatment of adolescent depression - primary prevention, pharmacotherapy, and psychotherapy - in order to advocate for advances in treatment. With regard to psychotherapy, we restrict this to comparisons of meta-analytic studies, in order to cover the breadth of the outcome literature. In the second half of this article, we introduce the reader to mindfulness and acceptance-based psychotherapy, with a particular focus on Acceptance and Commitment Therapy (ACT) and the applicability with adolescents. We provide an overview of the philosophical arguments that underlie this approach to psychotherapy and consider how each of these might contribute to treatment approaches for adolescents with depression.

PTP1B regulates Eph receptor function and trafficking

- Nievergall, Eva, Janes, Peter, Stegmayer, Caroline, Vail, Mary, Haj, Fawaz, Teng, Shyh, Neel, Benjamin, Bastiaens, Phillippe, Lackmann, Martin

  • Authors: Nievergall, Eva , Janes, Peter , Stegmayer, Caroline , Vail, Mary , Haj, Fawaz , Teng, Shyh , Neel, Benjamin , Bastiaens, Phillippe , Lackmann, Martin
  • Date: 2010
  • Type: Text , Journal article
  • Relation: Journal of Cell Biology Vol. 191, no. 6 (2010), p. 1189-1203
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  • Description: Eph receptors orchestrate cell positioning during normal and oncogenic development. Their function is spatially and temporally controlled by protein tyrosine phosphatases (PTPs), but the underlying mechanisms are unclear and the identity of most regulatory PTPs are unknown. We demonstrate here that PTP1B governs signaling and biological activity of EphA3. Changes in PTP1B expression significantly affect duration and amplitude of EphA3 phosphorylation and biological function, whereas confocal fluorescence lifetime imaging microscopy (FLIM) reveals direct interactions between PTP1B and EphA3 before ligand-stimulated receptor internalization and, subsequently, on endosomes. Moreover, overexpression of wild-type (w/t) PTP1B and the [D-A] substrate–trapping mutant decelerate ephrin-induced EphA3 trafficking in a dose-dependent manner, which reveals its role in controlling EphA3 cell surface concentration. Furthermore, we provide evidence that in areas of Eph/ephrin-mediated cell–cell contacts, the EphA3–PTP1B interaction can occur directly at the plasma membrane. Our studies for the first time provide molecular, mechanistic, and functional insights into the role of PTP1B controlling Eph/ephrin-facilitated cellular interactions.

QoS-centric collision window shaping for CSMA-CA MAC protocol

- Miraz Al-Mamun, Miraz, Karmakar, Gour, Kamruzzaman, Joarder

  • Authors: Miraz Al-Mamun, Miraz , Karmakar, Gour , Kamruzzaman, Joarder
  • Date: 2010
  • Type: Text , Conference proceedings
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  • Description: Collision Sense Multiple Access (CSMA) has been preferred to Time Division Multiple Access (TDMA) as medium access scheme for Wireless Multimedia Sensor Network (WMSN) in the scenarios where the traffic is bursty in nature and multiple consecutive and contiguous packets generated from the same collision neighborhood need to be sent. Protocols based on nonuniform probability distribution do not perform well in high contention and heterogeneous traffic scenarios due to nonadaptive nature to contention neighborhood. In this paper we have proposed a scheme to adapt the Contention Window (CW) size according to the collision neighborhood population complying with the application specific latency and success probability constraints. This scheme shows improved performance compared with SIFT, a stereotype of non-uniform probability based CSMA protocol and can be deployed with any CSMA-CA (CSMA with Collision Avoidance) based backoff algorithm

Quadratic smoothing approximation to 1/2-order exact penalty function

- Bai, Fusheng, Wu, Zhiyou

  • Authors: Bai, Fusheng , Wu, Zhiyou
  • Date: 2010
  • Type: Text , Conference paper
  • Relation: Paper presented at 1st International Conference on Green Circuits and Systems, ICGCS 2010, Shanghai : 21st-23rd June 2010 p. 409-413
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  • Description: In this paper, we propose a quadratic smoothing approximation to the 1/2-order exact penalty function. It is shown that when the penalty parameter of the smoothed penalty problem with the smoothing approximation function being penalty function is sufficiently large, any global minimizer of the smoothed penalty problem is an approximate feasible point of the original optimization problem, and the difference between the original objective function value on a global minimizer of the smoothed penalty problem and the global optimal value of the original problem can be controlled by the smoothing parameter which can be set in advance. Two numerical examples are reported to show the effectiveness of the proposed quadratic smoothing approximation method. © 2010 IEEE.

Query processing over distributed heterogeneous sensor networks in Future Internet : Scalable architecture and challenges

- Azad, Arman, Kamruzzaman, Joarder, Srinivasan, Bala, Alam, K., Pervin, Shaila

  • Authors: Azad, Arman , Kamruzzaman, Joarder , Srinivasan, Bala , Alam, K. , Pervin, Shaila
  • Date: 2010
  • Type: Text , Conference paper
  • Relation: Second International Conference on Advances in Future Internet p. 75-81
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  • Description: The wireless networked sensors embedded with everyday objects will become an integral part of Future Internet, where the interaction among people, computer and those objects will shift the current Internet to a new paradigm, namely the Internet of Things. The terabyte torrent of data generated by billions of sensors belonging to a large number of distributed heterogeneous sensor networks in Future Internet will only be valuable if they can be effectively used on purpose, which leads to the necessity of an Internet scale query processing framework. In this paper, firstly, we focus on the distinct challenges present in Internet scale query processing over distributed sensor networks. Then, we propose a flexible and scalable system architecture capable of handling the complex scenario that might arise from the integration of a large number of such networks in Future Internet. Finally, we discuss the overall query processing methodology over such system and present some directions on the possible solutions to a number of identified research challenges. The outcome of this paper would foster the sensor network research in Future Internet domain

Rapid arthroplasty mobilisation protocol

- Stewart, Sue

Rapid identification of rootkit infections using data mining

- Lobo, Desmond

  • Authors: Lobo, Desmond
  • Date: 2010
  • Type: Text , Thesis , PhD
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  • Description: "The main part of this thesis presents a new approach to the topic of conjugation, with applications to various optimization problems. It does so by introducing (what we call) G-coupling functions."
  • Description: Doctor of Philsophy

Rating medical emergency teamwork performance: development of the Team Emergency Assessment Measure (TEAM)

- Cooper, Simon J., Cant, Robyn, Sellick, Kenneth, Porter, Joanne, Somers, George, Kinsman, Leigh, Nestel, Debra

  • Authors: Cooper, Simon J. , Cant, Robyn , Sellick, Kenneth , Porter, Joanne , Somers, George , Kinsman, Leigh , Nestel, Debra
  • Date: 2010
  • Type: Text , Journal article
  • Relation: Resuscitation Vol. 81, no. 4 (2010), p. 446-452
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  • Description: Aim To develop a valid, reliable and feasible teamwork assessment measure for emergency resuscitation team performance. Background Generic and profession specific team performance assessment measures are available (e.g. anaesthetics) but there are no specific measures for the assessment of emergency resuscitation team performance. Methods (1) An extensive review of the literature for teamwork instruments, and (2) development of a draft instrument with an expert clinical team. (3) Review by an international team of seven independent experts for face and content validity. (4) Instrument testing on 56 video-recorded hospital and simulated resuscitation events for construct, consistency, concurrent validity and reliability and (5) a final set of ratings for feasibility on fifteen simulated ‘real time’ events. Results Following expert review, selected items were found to have a high total content validity index of 0.96. A single ‘teamwork’ construct was identified with an internal consistency of 0.89. Correlation between the total item score and global rating (rho 0.95; p < 0.01) indicated concurrent validity. Inter-rater (k 0.55) and retest reliability (k 0.53) were ‘fair’, with positive feasibility ratings following ‘real time’ testing. The final 12 item (11 specific and 1 global rating) are rated using a five-point scale and cover three categories leadership, teamwork and task management. Conclusion In this primary study TEAM was found to be a valid and reliable instrument and should be a useful addition to clinicians’ tool set for the measurement of teamwork during medical emergencies. Further evaluation of the instrument is warranted to fully determine its psychometric properties.

RBACS : Rootkit behavioral analysis and classification system

- Lobo, Desmond, Watters, Paul, Wu, Xinwen

  • Authors: Lobo, Desmond , Watters, Paul , Wu, Xinwen
  • Date: 2010
  • Type: Text , Conference paper
  • Relation: Paper presented at 3rd International Conference on Knowledge Discovery and Data Mining, WKDD 2010, Phuket : 9th-10th January 2010 p. 75-80
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  • Description: In this paper, we focus on rootkits, a special type of malicious software (malware) that operates in an obfuscated and stealthy mode to evade detection. Categorizing these rootkits will help in detecting future attacks against the business community. We first developed a theoretical framework for classifying rootkits. Based on our theoretical framework, we then proposed a new rootkit classification system and tested our system on a sample of rootkits that use inline function hooking. Our experimental results showed that our system could successfully categorize the sample using unsupervised clustering. © 2010 IEEE.

Reaching out to the west : An assessment of Chinese students' views regarding foreign-delivered university programs in China

- Willis, Mike

  • Authors: Willis, Mike
  • Date: 2010
  • Type: Text , Journal article
  • Relation: Journal of Teaching in International Business Vol. 21, no. 1 (2010), p. 53-68
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  • Description: This article identifies the views and expectations of Chinese students located in nine cities in China and Hong Kong in regard to the delivery of foreign degree programs within China. This delivery mode is becoming a common form of educational delivery and augments other modes of international activity such as study abroad and distance education. The research has found that students wanted a relatively unadapted course, delivered in English by foreign academics, with a high level of academic and administrative servicing in China. They did not like subjects which had been overly adapted for the Chinese market, since these were viewed to be somewhat lacking in authenticity. However, some very minor areas of adaptation were required to meet some specific local requirements, but in essence students wanted courses which were a close replication of what it would be like to study in the foreign university location, whether it be in America, Australia, or Europe. The value of this research is that it identifies the desire of students for relatively unadapted foreign programs in China. This finding is of use to foreign universities planning courses and programs in China and also adds to the debate about the adaptation or standardization of services in a Chinese context. © Taylor & Francis Group, LLC.

Reactive trace element enrichment in a highly modified, tidally inundated acid sulfate soil wetland : East Trinity, Australia

- Keene, Annabelle, Johnston, Scott, Bush, Richard, Burton, Edward, Sullivan, Leigh

  • Authors: Keene, Annabelle , Johnston, Scott , Bush, Richard , Burton, Edward , Sullivan, Leigh
  • Date: 2010
  • Type: Text , Journal article
  • Relation: Marine Pollution Bulletin Vol. 60, no. 4 (2010), p. 620-626
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  • Description: This study examines the abundance of trace elements in surface sediments of a former acid sulfate soil (ASS) wetland subjected to marine tidal inundation. Sediment properties of this highly modified study site are compared with those of an adjacent unmodified, intertidal mangrove forest. Whilst some trace elements (Al, Cd, Mn, Ni and Zn) were clearly depleted due to mobilisation and leaching in the previous oxic-acidic phase, other trace elements (As and Cr) displayed significant enrichment in the tidally inundated ASS. Many trace elements were strongly associated with the reactive Fe and acid volatile sulfide (AVS) fractions, suggesting that trace elements may be adsorbed to abundant reactive Fe phases or sequestered as sulfide minerals. These findings provide an important understanding of the fate and mobility of reactive iron, AVS and trace elements during tidal remediation of a formerly acidified Great Barrier Reef (GBR) catchment. © 2010 Elsevier Ltd.

Readiness to adaptively change under three conditions: Clinical, careers, and natural change situations

- Bowles, Terry

  • Authors: Bowles, Terry
  • Date: 2010
  • Type: Text , Journal article
  • Relation: Australian Journal of Psychology Vol. 62, no. 4 (2010), p. 216-226
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  • Description: The Adaptive Change Model (ACM) was developed as an alternative form of the Transtheoretical Model of Change to address some of the criticisms of early operationalisation. Both models provide a framework for measuring the potentialities of change and to facilitate targeted behaviour change in general and clinical settings. In this research, the eight factors of the Adaptive Change Questionnaire (ACQ) operationalising the ACM were validated using confirmatory factor analysis, involving 238 respondents. The findings indicated a good fit between the model and data. A comparison of the mean scores of the factors of the ACM showed respondents seeking clinical therapy (n=85) were lower on self-rating of factors related to adaptive change than a group receiving career counselling (n=88) and a non-therapy group (n=65). The ACQ factors correctly predicted the allocation of 79.3% of the clinical and non-therapy respondents which confirmed previous research. The relevance of the findings for therapeutic interventions and future research are discussed. © The Australian Psychological Society Ltd.