703 results for Massey University, Journal article

  • Evaluating the content and quality of cognitive-behavioural therapy case conceptualisations

    Haarhoff, BA; Flett, RA; Gibson, KL (2011)

    Journal article
    Massey University

    Whilst case conceptualisation (CC) is considered a key Cognitive-Behaviour Therapy (CBT) competency, assessment and evaluation of the content and quality of CBT CC skills is not generally part of CBT training. In this paper, the content and quality of CCs produced by novice CBT clinicians was evaluated. Twenty-six novice CBT clinicians constructed CCs based on four clinical case vignettes. The content and quality of the CCs was evaluated using three rating scales, the Case Formulation Content Coding method, the Fothergill and Kuyken Quality of Cognitive-Therapy Case Formulation rating scale, and the CBT CC rating scale and benchmark conceptualisations. Descriptive statistical analysis of content displayed consistent distribution of subcategories of clinical information included, or omitted in the CCs. Underlying psychological mechanisms were emphasised. Information concerning biological, socio-cultural, protective factors, and the therapeutic relationship were generally omitted. As far as quality was concerned, between 50% - 61% of participants produced 'good-enough' CBT CCs. The consistent pattern of clinical information evidenced in the participants' CCs highlighted strengths and weaknesses which have implications for improving training in CC CBT competency.

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  • Using the common sense model of illness selfregulation to understand diabetes-related distress: The importance of being able to 'make sense' of diabetes

    Paddison, CAM; Alpass, F; Stephens, C (2010)

    Journal article
    Massey University

    This study examines the relationships between illness perceptions and illness-related distress among adults with type 2 diabetes. Research participants (N = 615) were randomly selected from a primary care database in New Zealand. Data were collected through a mailed questionnaire survey and review of medical records. The primary outcome was diabetes-related psychological distress measured using the Problem Areas in Diabetes (PAID) scale. Multiple regression analyses controlling for age, clinical characteristics, and mental health showed that illness perceptions accounted for 15% of differences in distress about diabetes (F change (4,462) = 35.37, p < .001). Poor mental health and illness severity alone do not explain differences in diabetes-related emotional adjustment. Results suggest that ‘making sense’ of diabetes may be central to successfully managing the emotional consequences of diabetes.

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  • A Low-Power Voltage Limiter/Regulator IC in Standard Thick-Oxide 130 nm CMOS for Inductive Power Transfer Application

    Lapshev, S; Hasan, SMREZAUL (2014-12-18)

    Journal article
    Massey University

    false

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  • Quality assessment technique for ubiquitous software and middleware

    Ryu, H.; Hong, G.Y.; James, H.

    Journal article
    Massey University

    The new paradigm of computing or information systems is ubiquitous computing systems. The technology-oriented issues of ubiquitous computing systems have made researchers pay much attention to the feasibility study of the technologies rather than building quality assurance indices or guidelines. In this context, measuring quality is the key to developing high-quality ubiquitous computing products. For this reason, various quality models have been defined, adopted and enhanced over the years, for example, the need for one recognised standard quality model (ISO/IEC 9126) is the result of a consensus for a software quality model on three levels: characteristics, sub-characteristics, and metrics. However, it is very much unlikely that this scheme will be directly applicable to ubiquitous computing environments which are considerably different to conventional software, trailing a big concern which is being given to reformulate existing methods, and especially to elaborate new assessment techniques for ubiquitous computing environments. This paper selects appropriate quality characteristics for the ubiquitous computing environment, which can be used as the quality target for both ubiquitous computing product evaluation processes ad development processes. Further, each of the quality characteristics has been expanded with evaluation questions and metrics, in some cases with measures. In addition, this quality model has been applied to the industrial setting of the ubiquitous computing environment. These have revealed that while the approach was sound, there are some parts to be more developed in the future.

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  • Building cost-effective research platforms: utilising free | open-source software in research projects

    Meyer, Tony

    Journal article
    Massey University

    When prototyping or developing a system for use in research work, it is often necessary to create an entire system, even if only one part of the system is the focus of the research. Free | open-source software offers a solution to this problem, allowing the creation of cost-effective research platforms, utilising peer-reviewed, rapidly-developed code that is easily modified. One form of free | open-source software that is regularly used in research projects is engines from 3d games such as Unreal Tournament (Lewis & Jacobson, 2002). Although the core rendering engine is proprietary, the game engine is able to be freely utilised as a reasonably generic rendering engine and physics simulator, and most of the game code is modifiable. A synthetic characters development project, outlined in this paper, uses the Unreal Tournament game engine, via the Gamebots socket tool, as its primary output system. Several other free | open-source software packages are utilised, including a speech recognition system (Sphinx from Carnegie Mellon University), a speech generation system (Festival-Light from Carnegie Mellon University), and a vision system built with Lego™ Mindstorms™ (and the open-source NQC), cheap web-cameras and Intel®’s OpenCV library. These modules all communicate via standard network sockets and are able to operate independently. Each module required a different level of modification in order to form part of the synthetic actors system, from no modification at all (Unreal Tournament), to light modifications (Festival-Light), to a new system based on open-source code (the NQC-based tripod code); one package – the OpenCV library – is simply linked to by completely new code.

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  • Stripping the Skin off Humour

    Rangiwananga, Melissa; Coombes, Leigh; McCreanor, Tim

    Journal article
    Massey University

    This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License

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  • Simulating large random Boolean networks

    Hawick, K.A.; James, H.A.; Scogings, C.J.

    Journal article
    Massey University

    The Kauffman N-K, or random boolean network, model is an important tool for exploring the properties of large scale complex systems. There are computational challenges in simulating large networks with high connectivities. We describe some high-performance data structures and algorithms for implementing large-scale simulations of the random boolean network model using various storage types provided by the D programming language. We discuss the memory complexity of an optimised simulation code and present some measured properties of large networks.

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  • Airline passengers’ rights to information and the strange case of the right to be informed about destinations

    Pérezgonzález, Jose D.; Gilbey, Andrew

    Journal article
    Massey University

    This research explored whether airline passengers wanted more rights to know about the safety and economic conditions of their flights, as well as the right to be reimbursed if they decided not to flight because of perceived risks. Overall, passengers agreed somehow on having more safety rights, but not so regarding financial rights. Surprisingly, they also wanted to have the right to be informed about their destinations (hotels, attractions, etc), something that is foreign to the purpose and duties of air transport.

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  • Kepstrum approach to real-time speech-enhancement methods using two microphones

    Jeong, J.; Moir, T.J.

    Journal article
    Massey University

    The objective of this paper is to provide improved real-time noise canceling performance by using kepstrum analysis. The method is applied to typically existing two-microphone approaches using modified adaptive noise canceling and speech beamforming methods. It will be shown that the kepstrum approach gives an improved effect for optimally enhancing a speech signal in the primary input when it is applied to the front-end of a beamformer or speech directivity system. As a result, enhanced performance in the form of an improved noise reduction ratio with highly reduced adaptive filter size can be achieved. Experiments according to 20cm broadside microphone configuration are implemented in real-time in a real environment, which is a typical indoor office with a moderate reverberation condition.

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  • Probing Localization in Absorbing Systems via Loschmidt Echos

    Bodyfelt, JD; Zheng, MC; Kottos, T; Kuhl, U; Stoeckmann, H-J

    Journal article
    Massey University

    Published

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  • Performance evaluation of a distributed integrative architecture for robotics

    Kloss, Guy K.

    Journal article
    Massey University

    The eld of robotics employs a vast amount of coupled sub-systems. These need to interact cooperatively and concurrently in order to yield the desired results. Some hybrid algorithms also require intensive cooperative interactions internally. The architecture proposed lends it- self amenable to problem domains that require rigorous calculations that are usually impeded by the capacity of a single machine, and incompatibility issues between software computing elements. Implementations are abstracted away from the physical hardware for ease of de- velopment and competition in simulation leagues. Monolithic developments are complex, and the desire for decoupled architectures arises. Decoupling also lowers the threshold for using distributed and parallel resources. The ability to re-use and re-combine components on de- mand, therefore is essential, while maintaining the necessary degree of interaction. For this reason we propose to build software components on top of a Service Oriented Architecture (SOA) using Web Services. An additional bene t is platform independence regarding both the operating system and the implementation language. The robot soccer platform as well as the associated simulation leagues are the target domain for the development. Furthermore are machine vision and remote process control related portions of the architecture currently in development and testing for industrial environments. We provide numerical data based on the Python frameworks ZSI and SOAPpy undermining the suitability of this approach for the eld of robotics. Response times of signi cantly less than 50 ms even for fully interpreted, dynamic languages provides hard information showing the feasibility of Web Services based SOAs even in time critical robotic applications.

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  • Building knowledge-based economies: research projects in knowledge management and knowledge transfer

    Gibson, Virginia R.

    Journal article
    Massey University

    Small and medium-sized enterprises (SMEs) are viewed as the growth engines of the new knowledgebased economy. This new economic growth model differs from the old in significant ways, many of which are related to the knowledge base that will be required by the SMEs. Based upon prior research a set of factors important to the success of SMEs in a knowledge-based economy is described. Focusing on those factors related to the knowledge base, the paper concludes with a set of research questions and brief descriptions of three research projects on knowledge management and knowledge transfer.

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  • A grammar for a text based music scoring program

    Kay, P.

    Journal article
    Massey University

    The grammar for a text-based music scoring software package and a short example is presented. The computer program developed using this language (available from the author's website) will form the basis for future research into a variety of different input methods for creating music scores.

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  • Agglomerate properties

    Rynhart, P.R.; Jones, J.R.; McKibbin, R.

    Journal article
    Massey University

    Modelling of wet granulation requires the rate of agglomerate coalescence to be estimated. Coalescence is dependent on the frequency of collisions that occur, and the fraction of collisions which result in coalescence. The collision rate is a function of granulator kinetics and powder properties, while the coalescence success rate is dependent on factors including the Stokes number and particle geometry. This work investigates an aspect of the geometry by examining the distribution of liquid on the surface of agglomerates in the capillary state. Agglomerates are created by adding particles, one at a time, about a central tetrahedral arrangement of four primary particles. For a given agglomerate, the wetted fraction of surface area, defined as the wetness, is evaluated using an approximate fluid surface. Packing density and binder saturation parameters are incorporated into the model. Given a number of primary particles and the volume of binder in a particle, the agglomerate wetness is able to be estimated using computational geometry.

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  • On the number of representations of certain integers as sums of eleven or thirteen squares

    Cooper, Shaun

    Journal article
    Massey University

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  • Oscillations and traveling waves of calcium: a simplified model

    Singer, Benjamin

    Journal article
    Massey University

    We construct a heuristic model of calcium oscillations in pancreatic acinar cells. The model is based on the two-state model of Sneyd et al. (Sneyd, J., A. LeBeau and D. Yule, 2000, Traveling waves of calcium in pancreatic acinar cells: model construction and bifurcation analysis, Physica D, in press) and is similar in spirit to the FitzHugh reduction of the Hodgkin-Huxley equations. The simpli¯ed model successfully reproduces the oscillatory behavior and wave behaviour of the more complex model. In particular, the simpli¯ed model provides an example of a simple, physiologically relevant model that has a T-point and an associated spiral branch of homoclinic orbits.

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  • Real-time computation of Haar-like features at generic angles for detection algorithms

    Barczak, A.L.C.; Johnson, M.J.; Messom, C.H.

    Journal article
    Massey University

    This paper proposes a new approach to detect rotated objects at distinct angles using the Viola-Jones detector. The use of additional Integral Images makes an approximation the Haar-like features for any given angle. The proposed approach uses di erent types of Haar-like features, including features that compute areas at 45o, 26.5o and 63.5o of rotation. Given a trained classi er (using normal features) a conversion is made using a pair of features so an equivalent value is computed for any angle. This conversion is only an approximation, but the errors are constrained and they would have limited impact on the nal accuracy of the classi er. We discuss the sources of errors in the computation of the Haar-like features and show through experiments that in natural images the errors are often negligible.

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  • Coupling and mixing times in a Markov Chains [sic]

    Hunter, Jeffrey J.

    Journal article
    Massey University

    The derivation of the expected time to coupling in a Markov chain and its relation to the expected time to mixing (as introduced by the author in “Mixing times with applications to perturbed Markov chains” Linear Algebra Appl. (417, 108-123 (2006)) are explored. The two-state cases and three-state cases are examined in detail.

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  • Choosing new ways to chew

    Xu, W. L.; Bronlund, J. E.; Kieser, J.

    Journal article
    Massey University

    No abstract available

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  • The declining enrolment of New Zealanders in Bachelor of Engineering programmes

    Craig, Robert G.

    Journal article
    Massey University

    This paper discusses proposed research into the knowledge and attitudes towards professional engineering as a career or field of study held by Year 13 pupils from the Auckland region. An investigation stimulated by the falling enrolment into Bachelor of Engineering degrees by students from most industrialised countries, but more critically by students from within New Zealand itself. The discussion covers comparisons between school pupils from New Zealand and other industrialised nations on the basis of academic achievement, career selection, gender and ethnicity. The proposed methodology, anticipated results, and the possible benefit of those results are also discussed, the author encourages feedback.

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