Social and Behavioral Sciences Commons^™

Ascorbic Acid Losses In Vegetables Associated With Cook-Chill Food Preparation, Karen E. Charlton, Paula Patrick, L Dowling, E Jensen

Faculty of Science, Medicine and Health - Papers: part A

Objective. To assess ascorbic acid (AA) losses in four vegetables (broccoli, peas, cauliflower and cabbage) at each production stage in a cook-chill food service system. Setting. A long-stay psychiatric hospital in Cape Town. Design. Cross-sectional analytical study. On two repeat occasions, three samples of each vegetable were taken at the following stages: (i) delivery (day 1); (ii) after preparation (day 2); (iii) after cooking (day 5); (iv) after blastchilling (day 5); and (v) in the holdroom and after regeneration over a 4-day period (days 6 - 9). AA content of each sample was assessed in duplicate using the 2,6 dichloroindophenol …

Using A Taxonomy Of Errors As A Conceptual Framework For Differences In Patterns Of Use For Casual And Novice Users, Jocelyn R. Harper, Peter Caputi, Rohan Jayasuriya, Shae-Leigh C. Vella, P. Hyland

Faculty of Health and Behavioural Sciences - Papers (Archive)

A taxonomy of errors was applied in a recent study of casual and novice users of a statistical analysis software. The taxonomy was found to be useful and several extensions to the taxonomy were proposed. The aim of this study is to confirm the theoretical validity of the proposed extensions and the usefulness of the taxonomy in describing the patterns of human-computer interaction and predicting changes in use patterns with learning.

Individual Differences In Anticipated Emotions, Desires And Intentions In Approaching A Computer Task, Jocelyn R. Harper, Peter Caputi, Rohan Jayasuriya

Faculty of Health and Behavioural Sciences - Papers (Archive)

Research on user training has drawn on psychological theory to understand individual differences effects. An extension of the Model of Goal-directed Behaviour (MGB) was used to test the role of Personality variables, Computer self-efficacy and Computer anxiety as antecedents of anticipated emotions, goal desires and intentions. Positive anticipated emotions were demonstrated to intervene in the relation between Computer self efficacy and goal desires.

User Control And Task Authenticity For Spatial Learning In 3d Environments, Barney Dalgarno, Barry Harper

Faculty of Social Sciences - Papers (Archive)

This paper describes two empirical studies which investigated the importance for spatial learning of view control and object manipulation within 3D environments. A 3D virtual chemistry laboratory was used as the research instrument. Subjects, who were university undergraduate students (34 in the first study and 80 in the second study), undertook tasks in the virtual laboratory and were tested on their spatial knowledge through written tests. The results of the study indicate that view control and object manipulation enhance spatial learning but only if the learner undertakes authentic tasks that require this learning. These results have implications for educational designers …

Developing A Learning Object Metadata Application Profile Based On Lom Suitable For Australian Higher Education Context, Shirley Agostinho, Sue Bennett, Lori Lockyer, Barry Harper

Faculty of Social Sciences - Papers (Archive)

This paper reports recent work in developing of structures and processes that support university teachers and instructional designers incorporating learning objects into higher education focused learning designs. The aim of the project is to develop a framework to guide the design and implementation of high quality learning experiences. This framework is premised on the proposition that learning objects are resources that can be incorporated within a learning design. The learning design serves as the pedagogical model that drives the development. The first phase of the project required an analysis of metadata schemas by which learning objects could be described, to …

Six Words Of Writing, Many Layers Of Significance : An Examination Of Writing As Social Practice In An Early Grade Classroom, Pauline Harris, Philip Fitzsimmons, Barbra Mckenzie

Faculty of Social Sciences - Papers (Archive)

This paper explores a six-year-old child's text that he wrote at school. We explore this text in order to demonstrate how even a simple text embodies many complex aspects of writing. These aspects include how writers represent texts, compose meaning, achieve social purposes, and position readers. We more deeply examine these aspects of writing practices in terms of contexts of situation and culture in which a child writes. In this examination, we consider how a child's experiences, predispositions and resources form a significant part of their classroom writing context.

Holding Environments: Creating Spaces To Support Children's Environmental Learning In The 21st Century, Karen Malone

Faculty of Social Sciences - Papers (Archive)

For many children across the globe, whether in low or high income nations, growing up in the 21st century will mean living in overcrowded, unsafe and polluted environments which provide limited opportunity for natural play and environmental learning. Yet Agenda 21, the Habitat Agenda and the United Nations Convention on the Rights of the Child all clearly articulate the importance of urban environments as the context for supporting children's sense of place, community identity and empathy with the natural world. I will argue in this paper that these attributes are all key drivers for supporting children in their role as …

Where Is The Story?: Intertextual Reflections On Literary Research And Practices In The Early School Years, Pauline Harris, Jillian Trezise, W N. Winser

Faculty of Social Sciences - Papers (Archive)

The authors gave the following talk at the 2003 NCTE Annual Convention in San Francisco upon receiving the Alan C. Purves Award, presented to the RTE article from the previous year's volume judged most likely to have an impact on classroom practice. Writing as lead author, Pauline Harris traces the history of her interest in children's intertextuality through her life as a classroom teacher, her doctoral studies in the Bay Area, and her recent work with colleagues Jillian Trezise and W. N. Winser in Australia. As they describe the impetus behind their award-winning article and suggest directions for future research, …

Finite-Element Analysis To Determine Effect Of Monolimb Flexibility On Structural Strength And Interaction Between Residual Limb And Prosthetic Socket, Winson Lee, Ming Zhang, David A. Boone, Bill Contoyannis

Faculty of Engineering and Information Sciences - Papers: Part A

Monolimb refers to a kind of transtibial prostheses having the socket and shank molded into one piece of thermoplastic material. One of its characteristics is that the shank is made of a material that can deform during walking, which can simulate ankle joint motion to some extent. Changes in shank geometry can alter the stress distribution within the monolimb and at the residual limb-socket interface and, respectively, affect the deformability and structural integrity of the prosthesis and comfort perceived by amputees. This paper describes the development of a finite-element model for the study of the structural behavior of monolimbs with …

Finite Element Modeling Of Contact Interface Between Trans-Tibial Residual Limb And Prosthetic Socket, Winson Lee, Ming Zhang, Xiaohong Jia, Jason Cheung

Faculty of Engineering and Information Sciences - Papers: Part A

Finite element method has been identified as a useful tool to understand the load transfer mechanics between a residual limb and its prosthetic socket. This paper proposed a new practical approach in modeling the contact interface with consideration of the friction/slip conditions and pre-stresses applied on the limb within a rectified socket. The residual limb and socket were modeled as two separate structures and their interactions were simulated using automated contact methods. Some regions of the limb penetrated into the socket because of socket modification. In the first step of the simulation, the penetrated limb surface was moved onto the …

Load Transfer Mechanics Between Trans-Tibial Prosthetic Socket And Residual Limb-Dynamic Effects, Xiaohong Jia, Ming Zhang, Winson Lee

Faculty of Engineering and Information Sciences - Papers: Part A

The effects of inertial loads on the interface stresses between trans-tibial residual limb and prosthetic socket were investigated. The motion of the limb and prosthesis was monitored using a Vicon motion analysis system and the ground reaction force was measured by a force platform. Equivalent loads at the knee joint during walking were calculated in two cases with and without consideration of the material inertia. A 3D nonlinear finite element (FE) model based on the actual geometry of residual limb, internal bones and socket liner was developed to study the mechanical interaction between socket and residual limb during walking. To …

'I Don't Really Know, So It's A Guess': Women's Reasons For Breast Cancer Risk Estimation., Nancy Humpel, Sandra C. Jones

Faculty of Social Sciences - Papers (Archive)

Women of all ages have been found to overestimate both the incidence and the mortality rate from breast cancer and the reasons for this are unclear. A qualitative study asked eighty three women (mean age = 44 years) how likely they thought they were to get breast cancer and to explain the reasoning behind their choice. Based on their responses, women's perceptions were categorised as: no risk (5%); reasonably accurate (30%); overestimated (22%); and greatly overestimated (43%). Four main themes emerged from the reasons given: 'Don't know/guess', 'family history' of breast cancer, 'age' related reasoning, and making their decision from …

Study On The Mechanism Of The Squeeze-Strengthen Effect In Magnetorheological Fluids, Xianzhou Zhang, X L. Gong, P Q. Zhang, Q M. Wang

Faculty of Engineering and Information Sciences - Papers: Part A

Current magnetorheological (MR)fluids have the limitation that their yield stresses are not strong enough to meet some industrial requirements. X. Tang, X. Zhang, and R. Tao [J. App. Phys87, 2634 (2000)] proposed a method to achieve high-efficiency MR fluids by study of squeeze-strengthen effect. But there is little report on its mechanism. This paper aims to investigate this effect through experimental and theoretical approaches. For this purpose, an apparatus is designed to experimentally study the mechanism of this squeeze-strengthen effect. Taking account of a modified magnetic dipole model and the friction effect, a semiempirical model is proposed to explain this …

Effect Of Microstructure On The Stability Of Retained Austenite In Transformation-Induced-Plasiticity Steels, I B. Timokhina, P D. Hodgson, E V. Pereloma

Faculty of Engineering and Information Sciences - Papers: Part A

Two Fe-0.2C-1.55Mn-1.5Si (in wt pct) steels, with and without the addition of 0.039Nb (in wt pct), were studied using laboratory rolling-mill simulations of controlled thermomechanical processing. The microstructures of all samples were characterized by optical metallography, X-ray diffraction (XRD), and transmission electron microscopy (TEM). The microstructural behavior of phases under applied strain was studied using a heat-tinting technique. Despite the similarity in the microstructures of the two steels (equal amounts of polygonal ferrite, carbide-free bainite, and retained austenite), the mechanical properties were different. The mechanical properties of these transformation-induced-plasticity (TRIP) steels depended not only on the individual behavior of all …

Massive Increase In The Stiffness Of The Human Lens Nucleus With Age: The Basis For Presbyopia?, Karl Robert Heys, Sandra Leigh Cram, Roger J W Truscott

Faculty of Engineering and Information Sciences - Papers: Part A

Purpose: To determine the stiffness of different regions of human lenses as a function of age, and to correlate the biophysical measurements in the lens center with nuclear water content.

Methods: A custom made probe fitted to a dynamic mechanical analyzer was employed to measure stiffness values at 1 mm increments across equatorial sections of individual human lenses. Thermogravimetric analysis was used to determine the percentage water content in the nuclei of human lenses.

Results: There was a pronounced increase in lens stiffness over the age range from 14 to 78. In the nucleus, stiffness values varied almost 1,000 fold …

Mansfield's Imprimitivity Theorem For Arbitrary Closed Subgroups, Astrid An Huef, Iain Raeburn

Faculty of Engineering and Information Sciences - Papers: Part A

No abstract provided.

Cuntz-Krieger Algebras Of Infinite Graphs And Matrices, Iain Raeburn, Wojciech Szymanski

Faculty of Engineering and Information Sciences - Papers: Part A

We show that the Cuntz-Krieger algebras of infinite graphs and infinite {0,1}-matrices can be approximated by those of finite graphs. We then use these approximations to deduce the main uniqueness theorems for Cuntz-Krieger algebras and to compute their K-theory. Since the finite approximating graphs have sinks, we have to calculate the K-theory of Cuntz-Krieger algebras of graphs with sinks, and the direct methods we use to do this should be of independent interest.

Energy Injection By Distributed Generation For Improvement In Feeder-Voltage Profile, Kashem M. Muttaqi, Gerard Ledwich

Faculty of Engineering and Information Sciences - Papers: Part A

No abstract provided.

What Prevent B2b Ecommerce Adoption In Developing Countries?: A Socio-Cultural Perspective, Savanid Vatanasakdakul, William Tibben, Joan Cooper

Faculty of Engineering and Information Sciences - Papers: Part A

It is widely believed that B2B e-commerce will help firms in developing countries to reduce cost and to improve their access to global market. Yet, developing countries are still some way from success in their adoption of B2B e-commerce. This paper explores social and cultural perspectives that impact on B2B e-commerce adoption in developing countries. Interviews were conducted with key informants from various industries in Thailand. Some common problems related to social and cultural issues faced by industries are presented. It was found that even though B2B e-commerce was implemented in many firms, its use was still very limited. Firms …

Myth Or Fact: Is Open Source Software More Secure Than Closed Source Software?, Daniel Saffioti, Gene Awyzio, Robert B. K. Brown

Faculty of Engineering and Information Sciences - Papers: Part A

This paper examines one aspect of quality that organizations look for when selecting software, namely security. Studies over time have indicated that security; scalability, interoperability and flexibility are important however the major issue has always been support. This has led to the sometimes inflexible concept of Standard Operating Environments (SOEs) within organisations. Whilst SOEs provide many benefits to an organisation they can leave them vulnerable to several large security risks. CERT statistics show that security incidents have increased six fold since 2000 [1]. This paper will examine trends in both open and closed software development for a number of platforms …

Summability For Nonunital Spectral Triples, Adam C. Rennie

Faculty of Engineering and Information Sciences - Papers: Part A

This paper examines the issue of summability for spectral triples for the class of nonunital algebras. For the case of (p, -) summability, we prove that the Dixmier trace can be used to define a (semifinite) trace on the algebra of the spectral triple. We show this trace is well-behaved, and provide a criteria for measurability of an operator in terms of zeta functions. We also show that all our hypotheses are satisfied by spectral triples arising from eodesically complete Riemannian manifolds. In addition, we indicate how the Local Index Theorem of Connes-Moscovici extends to our nonunital setting.

An Investigation Into The Effects Of Heat Transfer On The Motion Of A Spherical Bubble, P J Harris, H Al-Awadi, Wee King Soh

Faculty of Engineering and Information Sciences - Papers: Part A

This paper investigates the effect of heat transfer on the motion of a spherical bubble in the vicinity of a rigid boundary. The effects of heat transfer between the bubble and the surrounding fluid, and the resulting loss of energy from the bubble, can be incorporated into the simple spherical bubble model with the addition of a single extra ordinary differential equation. The numerical results show that for a bubble close to an infiniterigid boundary there are significant differences in both the radius and Kelvin impulse of the bubble when the heat transfer effects are included.

The Limiting Ideal Theory For Shear-Index Cohesionless Granular Materials, Grant Cox, James Hill

Faculty of Engineering and Information Sciences - Papers: Part A

To model cohesionless granular flow using continuum theory, the usual approach is to assume the cohesionless Coulomb-Mohr yield condition. However, this yield condition assumes that the angle of internal friction is constant, when according to experimental evidence for most powders the angle of internal friction is not constant along the yield locus, but decreases for decreasing normal stress component σ from a maximum value of π/2. For this reason, we consider here the more general yield function which applies for shear-index granular materials, where the angle of internal friction varies with σ. In this case, failure due to frictional slip …

Compr(Om)Ising Postcolonialisms: Postcolonial Pedagogy And The Uncanny Space Of Possibility, Gerry Turcotte

Faculty of Arts - Papers (Archive)

The title of this paper is drawn from a conference of the same name that I co-organized in 1999 at the University of Wollongong in Australia (see Radcliffe and Turcotte). Although the general aim of the conference was to interrogate the notions of the postcolonial, it originally began as a wider discussion about the way postcolonialism had developed as a worldwide industry, and the growing sense that the pioneering efforts of Canadian and Australian scholars in shaping this field had been marginalized. My fear with this juggernaut of an academic industry was that the so-called fringe or peripheral celebration of …

Moulding And Manipulating The News, Sharon Beder

Faculty of Arts - Papers (Archive)

The media are accused of bias by people from both ends of the political spectrum, but journalists, editors and owners maintain that they provide an objective source of news. This chapter will consider the ways in which the news is shaped and how this in turn influences the way environmental issues are reported and constructed in the mass media.

Persistence Of Vision: Memory, Migration & Citizenship - Free Trade Or The Faulure Of Cross-Culturality?, Gerry Turcotte

Faculty of Arts - Papers (Archive)

In my novel, Flying in Silence, set in both Australia and Canada, my principal character is a French Canadian man torn between landscapes, languages and allegiances. To represent what was for me the central dilemmas of the novel — reconciling memory and migration — I used the metaphor of Persistence of Vision, that process in film through which we physiologically make sense of, or hold together, what should be a blurred, segmented and impartial sequence of frequently unrelated images. *** Persistence of vision is all about the eye, the way it follows a film, remembers an image, holds on to …

Organizing For Domestic Worker Rights In Singapore: The Limits Of Transnationalism, Lenore T. Lyons

Faculty of Arts - Papers (Archive)

Extract: This article examines the limits of transnational feminist activism through a case study of domestic worker rights in Singapore. This work builds on my decade-long research on the feminist movement in Singapore and my activist involvement in the Singaporean women’s organisation, the Association of Women for Action and Research (AWARE). I argue that the Singaporean state inhibits attempts by local feminist organizations to engage transnationally (either through links with international NGOs, or by confronting the forces of globalization locally). Singaporean activists have creatively responded to these challenges, but their actions remain constrained by the imperatives of the nation-state.

Reading Korean Stardom: Number 3 And The Reel, Real And Star Transformation Of Song Kang-Ho, Brian M. Yecies

Faculty of Arts - Papers (Archive)

This article focuses on Number Three and attempts to provide a window of understanding of Song Kang-Ho and the development of his artistry, which became crystallized in the early part of his filmmography. Number Three is an important film because Song Kang-Ho’s recognition and popularity began to spread after his performance in it. However, to date, few scholars have methodically explored and analyzed the transformation of his persona. Over the last seven years Song has appeared in some the most popular films as well as on the covers of numerous issues of Cine21 and Filml.O, two of Korea’s largest film …

Critical Injuries: Collaborative Indigenous Life Writing And The Ethics Of Criticism, Michael Jacklin

Faculty of Arts - Papers (Archive)

The publication of collaborative Indigenous life writing places both the text and its production under public scrutiny. The same is true for the criticism of life writing. For each, publication has consequences. Taking as its starting point the recent critical concern for harm occasioned in life writing, this article argues that in the reading of collaborative Indigenous life writing, injury may eventuate from the commentary itself .... With particular regard to the collaborative texts Ingelba and the Five Black Matriarchs and [the Canadian work] Stolen Life: The Journey of a Cree Woman, this article argues that literary criticism can benefit …

Caratteristiche Della Comunicazione Email: Riflessioni Su Un Corso Universitario Australiano Di Italiano L2, Mariolina Pais Marden, Matthew Absalom

Faculty of Arts - Papers (Archive)

This paper discusses a project involving the use of email exchanges in the Italian program at the Australian National University. Approximately eighty students participated in the project which consisted of two iterations of a one-to-one email conversation. We describe the language and content of the messages constructed by students in terms of the following features:

• the effects of the spatial, temporal and psychological distance inherent in email communication

• the hybrid nature of electronic communication which is situated between written and spoken discourse

• the relationship of the formal and content aspects of electronic communication

• the creative expression …