Effects of biodiesel chemical composition on the chemical and physical properties of the primary and secondary diesel particulate matter

This thesis improves our insight towards the effects of using biodiesels on the particulate matter emission of diesel engines and contributes to our understanding of their potential adverse health effects. The novelty of this project is the use of biodiesel fuel with controlled chemical composition that enables us to relate changes of physiochemical properties of particles to specific properties of the biodiesel. For the first time, the possibility of a correlation of the volatility and the Reactive Oxygen Species concentration of the particles is investigated versus the saturation, oxygen content and carbon chain length of the fuel.

An ethical approach to sharing school successes in times of high-stakes accountability

High-stakes testing has become an important element of the Australian educational landscape. As one part of the neo-liberal paradigm where beliefs in the individual and the free market are paramount, it is of concern how school leaders can respond to this phenomenon in an ethical manner. Ethics and ethical leadership have increased in prominence both in the educational administration literature and in the media (Cranston, Ehrich, & Kimber, 2006). In this paper we consider ethical theories on which school principals can draw, not only in the leadership of their own schools but in their relationships with other schools. We provide an example of a school leader sharing a successful intervention with other schools, illustrating that school leaders can create spaces for promoting the public good within the context of high-stakes testing.

Ultra-flexible nonvolatile memory based on donor-acceptor diketopyrrolopyrrole polymer blends

Flexible memory cell array based on high mobility donor-acceptor diketopyrrolopyrrole polymer has been demonstrated. The memory cell exhibits low read voltage, high cell-to-cell uniformity and good mechanical flexibility, and has reliable retention and endurance memory performance. The electrical properties of the memory devices are systematically investigated and modeled. Our results suggest that the polymer blends provide an important step towards high-density flexible nonvolatile memory devices.

Charge transport studies in donor-acceptor block copolymer PDPP-TNT and PC71BM based inverted organic photovoltaic devices processed in room conditions

Diketopyrrolopyrole-naphthalene polymer (PDPP-TNT), a donor-acceptor co-polymer, has shown versatile behavior demonstrating high performances in organic field-effect transistors (OFETs) and organic photovoltaic (OPV) devices. In this paper we report investigation of charge carrier dynamics in PDPP-TNT, and [6,6]-phenyl C71 butyric acid methyl ester (PC71BM) bulk-heterojunction based inverted OPV devices using current density-voltage (J-V) characteristics, space charge limited current (SCLC) measurements, capacitance-voltage (C-V) characteristics, and impedance spectroscopy (IS). OPV devices in inverted architecture, ITO/ZnO/PDPP-TNT:PC71BM/MoO3/Ag, are processed and characterized at room conditions. The power conversion efficiency (PCE) of these devices are measured ∼3.8%, with reasonably good fill-factor 54.6%. The analysis of impedance spectra exhibits electron’s mobility ∼2 × 10−3 cm2V−1s−1, and lifetime in the range of 0.03-0.23 ms. SCLC measurements give hole mobility of 1.12 × 10−5 cm2V−1s−1, and electron mobility of 8.7 × 10−4 cm2V−1s−1.

Submission to Inquiry into School Libraries and Teacher Librarians

We welcome the opportunity to contribute to the Department of Education, Employment and Workplace Relations (DEEWR) Inquiry into School Libraries and Teacher Librarians. We thank the Federal Government for the recognition that the Building the Education Revolution (BER) is not just about physical infrastructure. We are pleased that the Government has responded to calls from the library and information sector for a review focusing on school libraries and teacher librarians. The Australian Library and Information Association (ALIA) is the peak body representing the library and information services sector. It represents 6000 members, the library and information profession, Australian library and information services, and the interests of over 12 million library users. ALIA is committed to promoting the free flow of information and ideas in the interest of all Australians and a thriving culture, economy and democracy. We support the development of a 21st century information infrastructure with libraries as the conduit for a sustainable knowledge economy. This submission strongly supports the separate submission from the Australian School Library Association (ASLA) with whom ALIA works in partnership on issues concerning school libraries and teacher librarians. Other contributors to this submission include the ALIA Schools Group, the joint ALIA/ASLA Policy Advisory Group, and current practitioners. ALIA and ASLA are looking forward to working with the Federal Government on implementing the Inquiry recommendations.

School counsellors' and students' attitudes to online counselling: A qualitative study

An exploratory qualitative study was conducted to examine the perceptions and attitudes of both school counsellors and students to online counselling. Focus groups were conducted with two groups of school counsellors and six groups of secondary students. It was found that counsellors were hesitant to use online counselling because they were not convinced that it was effective and without the necessary online skills, they were concerned they would not be competent to deal with potential litigious and security pitfalls. Students were generally positive about the opportunity to access the school counsellor online. Implications for practice and future research are discussed.

Australian pre-service teachers' Knowledge and understanding of cyberbullying: Implications for school climate

The beliefs, attitudes and understandings of pre-service teachers towards bullying and more recently, cyberbullying remains unclear. Previous studies have found them to be generally lacking confidence to address bullying, which could impact negatively on school climate if, when they enter the profession, these beliefs undermine existing anti-bullying initiatives. This study explores Australian pre-service teachers' (N= 717) understanding and knowledge of traditional bullying and cyberbullying and their confidence and capacity to deal with it. Findings from self-report, anonymous questionnaires from students attending three universities in Australia indicated that two thirds (66%) of current pre-service teachers felt informed to very informed and capable to very capable (62%) of dealing with school bullying and 90% could discern cyber and traditional bullying behaviours from other online and offline aggressive acts. Gender and Year level differences were found. The potential impact of their knowledge and understanding of bullying and cyberbullying on school climate, and sustaining and maintaining anti-bullying interventions as they enter the profession is discussed.

Statistical literacy in the elementary school: Opportunities for problem posing

This chapter addresses opportunities for problem posing in developing young children’s statistical literacy, with a focus on student-directed investigations. Although the notion of problem posing has broadened in recent years, there nevertheless remains limited research on how problem posing can be integrated within the regular mathematics curriculum, especially in the areas of statistics and probability. The chapter first reviews briefly aspects of problem posing that have featured in the literature over the years. Consideration is next given to the importance of developing children’s statistical literacy in which problem posing is an inherent feature. Some findings from a school playground investigation conducted in four, fourth-grade classes illustrate the different ways in which children posed investigative questions, how they made predictions about their outcomes and compared these with their findings, and the ways in which they chose to represent their findings.

Public space design of knowledge and innovation spaces: Learnings from Kelvin Grove Urban Village, Brisbane

The era of knowledge-based urban development has led to an unprecedented increase in mobility of people and the subsequent growth in new typologies of agglomerated enclaves of knowledge such as knowledge and innovation spaces. Within this context, a new role has been assigned to contemporary public spaces to attract and retain the mobile knowledge workforce by creating a sense of place. This paper investigates place making in the globalized knowledge economy, which develops a sense of permanence spatio-temporally to knowledge workers displaying a set of particular characteristics and simultaneously is process-dependent getting developed by the internal and external flows and contributing substantially in the development of the broader context it stands in relation with. The paper reviews the literature and highlights observations from Kelvin Grove Urban Village, located in Australia’s new world city Brisbane, to understand the application of urban design as a vehicle to create and sustain place making in knowledge and innovation spaces. This research seeks to analyze the modified permeable typology of public spaces that makes knowledge and innovation spaces more viable and adaptive as per the changing needs of the contemporary globalized knowledge society.

Using axially loaded MRI to investigate the biomechanics of adolescent idiopathic scoliosis

Introduction. Spinal flexibility measurement is an important aspect of pre-operative clinical assessment in the treatment of Adolescent Idiopathic Scoliosis (AIS). Clinically, curve flexibility is a combined measure for all vertebral levels. We propose that in vivo flexibility for individual spinal joints could provide valuable additional information in planning treatment for scoliosis. Methods. Individual spinal joint flexibility in the coronal plane was measured for a series of AIS patients using axially loaded magnetic resonance imaging. Each patient underwent magnetic resonance imaging in the supine position, with no axial load, and then following application of an axial compressive load equal to half the patient’s bodyweight. Coronal plane disc wedge angles in the unloaded and loaded configurations were measured. Joint moments exerted by the axial compressive load were used to derive estimates of individual joint compliance. Results. Fifteen AIS patients were included in the study (mean clinical Cobb angle 46 degrees, mean age 15.3 years). Mean intra-observer measurement error for endplate inclination was 1.6˚. The mean increase in measured major Cobb angle between unloaded and loaded scans was 7.6˚. For certain spinal levels (+2,+1,-2 relative to the apex) there was a statistically significant relationship between change in wedge angle under load and initial wedge angle, such that initially highly wedged discs demonstrated a smaller change in wedge angle than less wedged discs. Highly wedged discs were observed near the apex of the curve, which corresponded to lower joint compliance in the apical region. Conclusion. Approaches such as this can provide valuable biomechanical data on in vivo spinal biomechanics in AIS. Knowledge of individual joint flexibility may assist surgeons to determine which spinal procedure is most appropriate for a patient, which levels should be included in a spinal fusion and the relative mobility of individual joints in the deformed region of the spine.

Learning Chinese as a Heritage Language: An Australian Perspective

Summary: This book explores the fascinating topic of heritage language learning, looking in particular at Chinese Australians' learning of Chinese. The author studies the investment, challenges and benefits of heritage language learning across varied contexts including school, work, home and in the community. The book investigates how Chinese Australians navigate and negotiate their Chineseness and how resources are used to support their learning. The book is based on a mixed methods study which uses Bourdieu's sociological theory, and offers implications for sociologists of language and education, Chinese heritage language learners and teachers, as well as language and cultural policy makers. Review: This book is a compelling account of the habitus of Chineseness in a world of mobility. It offers up a plethora of insights into the implication of heritage language learning in the constitution of Chinese identity; it makes available a sophisticated mixed methods approach for using the thinking tools of Pierre Bourdieu; it adds to these tools a nuanced cultural dimension. Karen Dooley, Queensland University of Technology, Australia In our increasingly trans-migratory world, language can be central to cultural identity. Dr Mu’s research breaks new ground by adapting Bourdieu’s insights to examine how cultural identity (‘Chinese-ness’) is linguistically learned and practiced in Australia. His remarkable book will interest educators and researchers grappling with how language pertains to identity. Tom Strong, University of Calgary, Canada A thought-provoking, highly engaging work that has deftly shown how Bourdieusian framework can be applied in the research field of literacy education and Heritage Language learning. A must-read for those interested in overseas Chinese communities and Heritage Language learning across various immigrant communities in general! Liang Du, Beijing Normal University, China

The first-year experience in law school: A new beginning?

The first-year experience at university is a "purgatorial zone". There is the shock of the new: navigating a new campus, choosing and enrolling in courses, locating classrooms, finding new friends and establishing new social networks, buying armloads of textbooks, making sense of subject outlines, balancing work and study, completing multiple assignments on time. But there are also the growing pains associated with intellectual development. Not only must first-year students take responsibility for their own learning; they must also accept that there are no "right" or "wrong" answers or "good" or "bad" positions, but judgements they must make and defend through analysis, reasoning and argument.

Welcome to the law/lore School

Law is saturate with stories. People tell their stories to lawyers; lawyers tell their clients' stories to courts; politicians develop policies to respond to their constituents' stories of injustice or inequality. These stories then translate into sources of law. Cases resolve contested stories between parties. Statutes target larger stories of social, economical and political significance. The legal system, in short, is a synthesis of statutory and judicial solutions to stories.

Whole blood transcriptional profiling in ankylosing spondylitis identifies novel candidate genes that might contribute to the inflammatory and tissue-destructive disease aspects

Introduction: A number of genetic-association studies have identified genes contributing to ankylosing spondylitis (AS) susceptibility but such approaches provide little information as to the gene activity changes occurring during the disease process. Transcriptional profiling generates a 'snapshot' of the sampled cells' activity and thus can provide insights into the molecular processes driving the disease process. We undertook a whole-genome microarray approach to identify candidate genes associated with AS and validated these gene-expression changes in a larger sample cohort. Methods: A total of 18 active AS patients, classified according to the New York criteria, and 18 gender- and age-matched controls were profiled using Illumina HT-12 whole-genome expression BeadChips which carry cDNAs for 48,000 genes and transcripts. Class comparison analysis identified a number of differentially expressed candidate genes. These candidate genes were then validated in a larger cohort using qPCR-based TaqMan low density arrays (TLDAs). Results: A total of 239 probes corresponding to 221 genes were identified as being significantly different between patients and controls with a P-value <0.0005 (80% confidence level of false discovery rate). Forty-seven genes were then selected for validation studies, using the TLDAs. Thirteen of these genes were validated in the second patient cohort with 12 downregulated 1.3- to 2-fold and only 1 upregulated (1.6-fold). Among a number of identified genes with well-documented inflammatory roles we also validated genes that might be of great interest to the understanding of AS progression such as SPOCK2 (osteonectin) and EP300, which modulate cartilage and bone metabolism. Conclusions: We have validated a gene expression signature for AS from whole blood and identified strong candidate genes that may play roles in both the inflammatory and joint destruction aspects of the disease.

Evaluation of a school-based creative arts therapy programme for adolescents from refugee backgrounds

Creative arts therapy programs have been identified as effective interventions with adolescents affected by adversity. The current study provided a controlled trial of creative arts therapy to address the psychosocial needs of students from refugee backgrounds. Forty-two students participated in a therapy trial, comprising an intervention and control group. Mental health and behavioural difficulties were assessed pre and post intervention. Hopkins Symptoms Checklist-25 (HSCL-25) and the Strengths and Difficulties Questionnaire (SDQ) were used to assess wellbeing. Findings suggested an effect for a reduction in behavioural difficulties for the treatment group. A significant reduction in emotional symptoms was found for the treatment group. Findings provide empirical support for school-based creative arts therapy interventions specific to refugee young people.