5,126 results for All rights reserved, 2013

  • Technology Education for the Future: A Play on Sustainability.

    (2013)

    Conference item
    University of Waikato

    We are very pleased to welcome Technology Education scholars from around the world to New Zealand for PATT 27. We are delighted to have the PATT conference in the Southern Hemisphere for only the second time in its history. This conference, and these proceedings, continue the almost 30 year old tradition of sharing research and ideas in a collegial and inclusive setting. While the conference theme provides a particular focus on considering the future and sustainability through Technology Education, the proceedings also include a broad range of papers which focus on key areas of importance in primary, secondary and tertiary levels of education. We believe the conference and these proceedings will make a valuable, interesting and significant contribution to the discourses of Technology Education through the introduction of new ideas, the confirmation or critique of assumptions, and the exploration of experiences. This moves our profession forward to rest on a more secure research base and to mature through analysis, interrogation and communication. We appreciate your willingness to come to Christchurch despite the 2010 and 2011 earthquakes. We hope that you enjoy the city as it starts to rebuild its future. Your presence here is a small contribution to the rebuild so thank you from the shaken and determined citizens of Christchurch.

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  • The use of learning technologies to facilitate engagement in an online course

    Gedera, Dilani S.P.; Williams, P. John (2013)

    Journal article
    University of Waikato

    E-learning is becoming increasingly popular in many countries for its flexibility in terms of time, place and pace. Research affirms that learning technologies support interaction and collaboration among learners and improve learning outcomes. However, current practices of e-learning are not without constraints and there is a need for empirical research to assist practitioners in determining the best uses of learning technologies. This paper seeks to develop an understanding of students’ experiences and their perspectives of learning with the educational technologies of ‘Adobe virtual classroom’ and ‘Moodle’ that facilitated activities in a university course. The study was conducted using a case study method over a period of one semester. With Activity Theory as its research framework, the research methods of this study include individual interviews, online observation and document analysis. This paper includes some of the initial findings of the research and a brief discussion on how the educational technologies facilitated students’ engagement in this course. This may inform practitioners of the pragmatic constraints and affordances of existing technologies, learning activities and strategies used in online learning environments.

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  • Using Activity Theory to understand contradictions in an online university course facilitated by Moodle

    Gedera, Dilani S.P.; Williams, P. John (2013)

    Journal article
    University of Waikato

    Activity Theory can offer insights into learning processes that are facilitated by Learning Management Systems. Contradictions, as a basic principle of Activity Theory, assist in identifying the tensions and conflicts that emerge in systems of online learning environments. Using Activity Theory as its research framework, this study focuses on the contradictions that emerged in the form of tensions, frustrations, misunderstandings and miscommunication in a fully online university course in New Zealand. The data collection methods of this case study included individual interviews, online activity observation and documents analysis. Outlining some of the findings of the study, this paper will discuss how students’ participation in learning activities facilitated by Moodle was affected by these contradictions.

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  • Hubble flow variance and the cosmic rest frame

    Wiltshire DL; Smale PR; Mattsson T; Watkins R (2013)

    Journal article
    University of Canterbury Library

    We characterize the radial and angular variance of the Hubble flow in the composite sample of 4534 galaxies, on scales in which much of the flow is in the nonlinear regime. With no cosmological assumptions other than the existence of a suitably averaged linear Hubble law, we find with decisive Bayesian evidence (ln B >> 5) that the Hubble constant, when averaged in independent spherical shells, is closer to its asymptotic value when referred to the rest frame of the Local Group (LG), rather than the standard rest frame of the cosmic microwave background (CMB). An exception occurs for radial shells in the range 40/h - 60/h Mpc. Angular averages reveal a dipole structure in the Hubble flow, whose amplitude changes markedly over the range 32/h - 62/h Mpc. Whereas the LG frame dipole is initially constant and then decreases significantly, the CMB frame dipole initially decreases but then increases. The map of angular Hubble flow variation in the LG rest frame is found to coincide with that of the residual CMB temperature dipole, with correlation coefficient -0.92. These results are difficult to reconcile with the standard kinematic interpretation of the motion of the Local Group in response to the clustering dipole, but are consistent with a foreground nonkinematic anisotropy in the distance-redshift relation of 0.5% on scales up to 65/h Mpc. Effectively, the differential expansion of space produced by nearby nonlinear structures of local voids and denser walls and filaments cannot be reduced to a local boost. This hypothesis suggests a reinterpretation of bulk flows, which may potentially impact on calibration of supernova distances, anomalies associated with large angles in the CMB anisotropy spectrum, and the dark flow inferred from the kinematic Sunyaev-Zel'dovich effect. It is consistent with recent studies that find evidence for a nonkinematic dipole in the distribution of distant radio sources.

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  • CYMRC 9th data report (2008-2012)

    (2013)

    Report
    University of Otago

    This is the 9th Data Report released by the CYMRC (the Child & Youth Mortality Review Committee). It predominantly reports on data from 2008 to 2012, with some tables and figures for 2002-2012, and some for the time period 1979-2012. These data are from the Mortality Review Database, which contains information on all deaths in children and young people aged 28 days to 24 years who died in New Zealand from 2002 to the present.

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  • Building energy performance testing: future labs that support the development of innovative building envelopes and systems

    Bellamy LA; Ridley I; Carre A (2013)

    Conference Contributions - Published
    University of Canterbury Library

    This paper considers the functional requirements of building energy performance laboratories with advanced capability to test and develop innovative building envelopes and systems. The aim is to contribute to an ongoing discussion on the future of building energy performance testing, which leads to the complementary development of new test facilities and methods around the world. The development of whole building simulator laboratories with the capability to test the energy and environmental performance of full-scale buildings is considered in light of practices used in fire performance and seismic structural performance testing. The design and use of building energy performance laboratories able to mimic dynamic outdoor and indoor conditions is discussed.

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  • Managing the Cosmetic Patient

    Locke, Michelle; Nahai, F (2013)

    Book item
    The University of Auckland Library

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  • Post Metropolitan? British Settler Societies and the End of Empire

    Barnes, Felicity (2013-08-26)

    Conference item
    The University of Auckland Library

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  • Assessment for learning and fostering student agency and autonomy in technology

    Moreland, Judy; Cowie, Bronwen (2013)

    Conference item
    University of Waikato

    In this paper we focus on how assessment for learning (AFL) practices can provide opportunities for students to develop identities as capable and independent learners who are aware of and able to employ a variation of and/or something similar to the accountability systems for knowledge generation and legitimation that are used by technologists. Sadler (1989) argued that the indispensible conditions for improvement are that students move from being consumers to active participants in their own learning and assessment. Carr (2001) adds that learner agency of this kind involves students being ready, willing and able to monitor and progress their own learning. As autonomous and agentic learners, students are attuned to opportunities to learn, to making deeper sense of their own learning and knowing when and how to take strategic action to progress their learning. They have ‘a nose for quality’ and the inclination and means to pursue this (Claxton, 1995). Using examples derived from a three-year research project undertaken with 12 teachers in New Zealand Year 1-8 schools we illustrate how teachers fostered student learning and learning autonomy through patterns of participation that construed learning as a social practice and collective responsibility. We detail the ways the teachers sought to ensure students had access to a range of opportunities for feedback and supported student affiliation with technology. We conclude that the ‘spirit’ of AfL (Marshall & Drummond, 2006) is evoked when teachers have a pedagogical mindset that foregrounds the sharing of responsibility with students as the norm, and when they provide students with opportunities, and the means, to exercise responsibility for their learning and learning progress.

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  • Pre-service teachers' perceptions of technology and technology education

    Forret, Michael; Edwards, Richard; Lockley, John; Nguyen, Nhung Hong (2013)

    Conference item
    University of Waikato

    Technology teachers’ perceptions and understanding of the nature of technology heavily influences their perceptions of technology education and consequently shapes their teaching practice. Understanding the nature of technology is also an important component of technology education and in 2007 the New Zealand technology curriculum introduced a new strand called the Nature of Technology. An important part of initial teacher education programmes is therefore to help student teachers develop their concepts and philosophies of technology and technology education. This paper reports findings from a survey of New Zealand student teachers’ perceptions of technology and technology education before and after their involvement in a compulsory course in technology education. The findings reported here are some of the initial results from one institution but are part of a larger project aimed at brining together similar data from across the country to inform development of pre-service technology education programmes.

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  • Centering Language, Culture, and Identity at the Nexus of Professional Learning and Practice

    Henderson, Christine; Price, Gaylene; Fickel, Letitia Hochstrasser (2013)

    Conference Contributions - Other
    University of Canterbury Library

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  • Is activin C a receptor antagonist: Implications for health and disease

    Lee, Kai Lun (2013)

    Masters thesis
    University of Otago

    The Transforming Growth Factor-β superfamily (TGF-β) is a large family of structurally related cell regulatory proteins. The TGF-β superfamily was initially discovered in 1983, and research is still ongoing investigating its enormous complexity and diversity. This study focuses on a particular subset of the TGF-β superfamily, the activin growth factors.

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  • Composition and thermal analysis of crust formed from industrial anode cover

    Zhang, Q; Taylor, Mark; Chen, John; Cotton, D; Groutzo, T; Yang, X (2013)

    Conference item
    The University of Auckland Library

    When the anode cover is heated up in the reduction cell, the crust formation from the anode cover commences at the bottom and the process is driven by thermo-chemical processes. It is important to study the composition and thermal stability properties of the crust in order to understand the mechanisms of crust formation and deterioration. Several crust pieces were taken from industrial prebaked anode cells. A number of vertical crust sections were sampled from these pieces, and each section was analyzed for composition and phase change temperature. Results show that the bottom layer is enriched in cryolite, consistent with results published in the literature. The upper region was found to contain more chiolite. Crushed bath-based anode crust has higher CR than alumina based anode crust. The melting of chiolite in the crust leaves substantial macro-porosity there, which contributes to the absorption of NaAlF 4 and the penetration of bath through it. The formation conditions of crystalline crust were discussed.

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  • Discovery and preliminary structure-activity relationship analysis of 1,14-sperminediphenylacetamides as potent and selective antimalarial lead compounds

    Liew, Lydia; Kaiser, M; Copp, Brent (2013-01-15)

    Journal article
    The University of Auckland Library

    Screening of synthesized and isolated marine natural products for in vitro activity against four parasitic protozoa has identified the ascidian metabolite 1,14-sperminedihomovanillamide (orthidine F, 1) as being a non-toxic, moderate growth inhibitor of Plasmodium falciparum (IC(50) 0.89 ??M). Preliminary structure-activity relationship investigation identified essentiality of the spermine polyamine core and the requirement for 1,14-disubstitution for potent activity. One analogue, 1,14-spermine-di-(2-hydroxyphenylacetamide) (3), exhibited two orders of magnitude increased anti-P. f activity (IC(50) 8.6 nM) with no detectable in vitro toxicity. The ease of synthesis of phenylacetamido-polyamines, coupled with potent nM levels of activity towards dual drug resistant strains of P. falciparum makes this compound class of interest in the development of new antimalarial therapeutics.

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  • The power to shock: Perceptions of visual and textual horror in Rammstein's performance aesthetics

    Burns, Robert GH (2013)

    Conference item
    University of Otago

    The use of monumental imagery, period clothing, German Romantic texts and guttural chants, which include nasal gestic speaking, all combine to make up what I regard as the Rammstein "formula". This formula has been apparent on all of Rammstein's recordings since Sehnsucht (1998) and in their stage performances, such as those in the DVDs Live aus Berlin (1999) and Volkerball (2006). Prior to this study, my research into Rammstein's aesthetics in performance had not extended to the band's use of album cover artwork, and it is also worth noting that the band's texts follow the darkly humorous and theatrically gothic themes that are used in their cover artwork and stage performances. There is a consistent thematic lineage between all Rammstein cover artwork that is "on point" and linked to song texts, the combination of which I argue, is designed to shock.

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  • Octodon degus (Molina 1782): A model in comparative biology and biomedicine

    Ardiles, AO; Ewer, J; Acosta Etchebarne, Monica; Kirkwood, A; Martinez, AD; Ebensperger, LA; Bozinovic, F; Lee, TM; Palacios, AG (2013-04-01)

    Journal article
    The University of Auckland Library

    One major goal of integrative and comparative biology is to understand and explain the interaction between the performance and behavior of animals in their natural environment. The Caviomorph, Octodon degu, is a native rodent species from Chile, and represents a unique model to study physiological and behavioral traits, including cognitive and sensory abilities. Degus live in colonies and have a well-structured social organization, with a mostly diurnal???crepuscular circadian activity pattern. More notable is the fact that in captivity, they reproduce and live between 5 and 7 yr and show hallmarks of neurodegenerative diseases (including Alzheimer's disease), diabetes, and cancer.

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  • Mapping cation entry in photoreceptors and inner retinal neurons during early degeneration in the P23H-3 rat retina

    Zhu, Y; Mistra, S; Nivison-Smith, L; Acosta Etchebarne, Monica; Fletcher, EL; Kalloniatis, M (2013-05)

    Journal article
    The University of Auckland Library

    The proline-23-histidine line 3 (P23H-3) transgenic rat carries a human opsin gene mutation leading to progressive photoreceptor loss characteristic of human autosomal dominant retinitis pigmentosa. The aim of the present study was to evaluate neurochemical modifications in the P23H-3 retina as a function of development and degeneration. Specifically, we investigated the ion channel permeability of photoreceptors by tracking an organic cation, agmatine (1-amino-4-guanidobutane, AGB), which permeates through nonspecific cation channels. We also investigated the activity of ionotropic glutamate receptors in distinct populations of bipolar, amacrine, and ganglion cells using AGB tracking in combination with macromolecular markers. We found elevated cation channel permeation in photoreceptors as early as postnatal day 12 (P12) suggesting that AGB labeling is an early indicator of impending photoreceptor degeneration. However, bipolar, amacrine, or ganglion cells displayed normal responses secondary to ionotropic glutamate receptor activation even at P138 when about one half of the photoreceptor layer was lost and apoptosis and gliosis were observed. These results suggest that possible therapeutic windows as downstream neurons in inner retina appear to retain normal function with regard to AGB permeation when photoreceptors are significantly reduced but not lost.

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  • A robust wire detector for a vine pruning robot

    McCulloch, Josh (2013)

    Doctoral thesis
    University of Canterbury Library

    An automated vine pruning robot is being developed to reduce the cost of labour in vineyards. This automated system requires an accurate model of the vine’s structure, including the locations of support wires, in order for the robot to make good decisions about where and how to prune the plant. In this project we have developed a system for accurately and robustly detecting pixels belonging to wires in Bayer Images taken by the robot of the vine’s canopy. Our system uses support vector machines for classifying wire and non-wire pixels, and a set of masks for optimally distributing training examples over an image. We have found an optimal subset of features for describing these examples and are able to achieve upwards of 90% precision with more than 20% recall. The system generates data ideal for wire fitting and use by the automated vine pruning robot. The techniques discussed could be generalised and used in other scenarios where selecting ideal example data from a large pool of potential examples, and finding optimal features to represent these examples is required.

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  • Method For Segmentation Of Articulated Structures Using Depth Images for Public Displays

    Watson, Robin (2013)

    Doctoral thesis
    University of Canterbury Library

    A novel method is presented to analyse articulated structures in depth data and is used in an attempt to implement gesture-motion control. The method first uses region growing with a depth threshold to obtain an initial segmentation of the scene into different bodies. Region growing is carried out again on these bodies to produce subregions. A head tracking method and hand tracking method were implemented using the depth analysis. The head tracking had an average of 22 pixel error. The hand tracking was unsuccessful.

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  • Applications of Dual Quaternions in Three Dimensional Transformation and Interpolation

    Smith, Matthew (2013)

    Doctoral thesis
    University of Canterbury Library

    Quaternions have long been integral to the field of computer graphics, due to their minimal and robust representation of rotations in three dimensional space. Dual quaternions represent a compact method of representing rigid body transformations (that is rotations and translations) with similar interpolation and combination properties. By comparing them to two other kinds of rigid transformations, we examine their properties and evaluate their usefulness in a real time environment. These properties include accuracy of operations, efficiency of operations, and the paths that interpolation and blending methods using those transformation methods take. The blending and interpolation methods are of particular interest as we constructed a skeletal animation system to highlight a potential application of dual quaternions. The bone hierarchy was constructed with dual quaternions and a sequence of identical hierarchies with different transformations at each bone can be interpolated as though they were keyframes to produce animations. Weighted transformations required in skinning the skeleton structure to a triangular mesh also prove an effective application of dual quaternions. Our findings show that while dual quaternions are useful in the context of skeletal animation, other applications may favour other representations, due to simplicity or speed.

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