Load on osseointegrated fixation of a transfemoral amputee during a fall : loading, descent, impact and recovery analysis

Falling represents a health risk for lower limb amputees fitted with an osseointegrated fixation mainly because of the potential damage to the fixation. The purpose of this study was to characterise a real forward fall that occurred inadvertently to a transfemoral amputee fitted with an osseointegrated fixation while attending a gait measurement session to assess the load applied on the residuum. The objective was to analyse the load applied on the fixation with an emphasis on the sequence of events, the pattern and the magnitude of the forces and moments. The load was measured directly at 200 Hz using a six-channel transducer. Complementary video footage was also studied. The fall was divided into four phases: loading (240 ms), descent (620 ms), impact (365 ms) and recovery (2495 ms). The main impact forces and moments occurred 870 ms and 915 ms after the heel contact, and corresponded to 133 %BW and 17 %BWm, or 1.2 and 11.2 times the maximum forces and moments applied during the previous steps of the participant, respectively. This study provided key information to engineers and clinicians facing the challenge to design equipment, and rehabilitation and exercise programs to restore safely the locomotion of lower limb amputees.

Co-creative labour

This article introduces a special issue on the topic of co-creative labour. The term co-creation is used to describe the phenomenon of consumers increasingly participating in the process of making and circulating media content and experiences. Practices of user-created content and user-led innovation are now significant sources of both economic and cultural value. But how should we understand and analyse these value-generating activities? What are the identities and forms of agency that constitute these emerging co-creative relations? Should we define these activities as a form of labour and what are the implications and impacts of co-creative practices on the employment conditions and professional identities of people working in the creative industries? In answering these questions we argue that careful attention must be paid to how the participants themselves (both professional and non-professional, commercial and non-commercial) negotiate and navigate the meanings and possibilities of these emerging co-creative relationships for mutual benefit. Co-Creative media production is perhaps a disruptive agent of change that sits uncomfortably with our current understandings and theories of work and labour. The articles in this special issue follow and unpack the often diverse and contradictory ways in which the participants themselves use and remake the social categories of work and labour as they seek to co-ordinate and contest co-creative media practices.

Public Perceptions of Elections: An Australia-New Zealand Comparison

his collection of essays honouring the late Emeritus Keith Jackson addresses the public interest in New Zealand. This subject is of increasing importance at a time when politicians are grappling with serious issues that call into question the boundaries between the private and public spheres. The essays, by leading scholars and acknowledged experts in their field, reflect Keith's own preoccupations with institutional politics and with communication

Australian cinema’s dark sun : the boom in Australian horror film production

There has been a boom in Australian horror movie production in recent years. Daybreakers (2010), Wolf Creek (2005), Rogue (2007), Undead (2003), Black Water (2008), and Storm Warning (2006) among others, have all experienced varying degrees of popularity, mainstream visibility, and cult success in worldwide horror markets. While Aussie horror’s renaissance is widely acknowledged in industry literature, there is limited research into the extent of the boom and the dynamics of production. Consequently, there are few explanations for why and how this surge has occurred. This paper argues that the recent growth in Australian horror films has been driven by intersecting international market forces, domestic financing factors, and technological change. In so doing, it identifies two distinct tiers of Australian horror film production: ‘mainstream’ and ‘underground’ production; though overlap between these two tiers results in ‘high-end indie’ films capable of cinema release. Each tier represents the high and low-ends of Australian horror film production, each with different financing, production, and distribution models.

Australasian horror special issue editorial : putting Australian and New Zealand horror movies on the map of cinema studies

This Australasian horror special issue is an important step forward in putting Australian and New Zealand horror movies on the map of film and cinema studies as a subject worthy of intellectual debate. The journal issue is the first devoted solely to the academic discussion of Australasian horror movies. While an Australian horror movie tradition has produced numerous titles since the 1970s achieving commercial success and cult popularity worldwide, the horror genre is largely missing from Australian film history. While there have been occasional essays on standout titles such as Wolf Creek (Mclean, 2005), an increasing number of articles on ‘Ozploitation’ movies, and irregular discussion about Australian Gothic, overall the nature of Australian horror as a genre remains poorly understood. In terms of New Zealand, debate has tended to revolve around ‘Kiwi Gothic’ and of course Peter Jackon’s early splatter films, rather than Kiwi horror as a specific filmmaking tradition.

Professional Responsibility and Legal Ethics in Queensland

With the commencement of the Legal Profession Act 2007 (Qld) and the establishment of the Legal Services Commission, the legal profession and legal services market in Queensland has experienced significant changes to its regulatory environment. Professional Responsibility and Legal Ethics in Queensland provides a detailed explanation and analysis of these changes. The book will assist lawyers to plan for successful practice within this new environment by examining such topics as: • The scope and application of key provisions within the Legal Profession Act; • The role, functions and policies of the Legal Services Commission; • The ethical and regulatory implications of operating as an Incorporated Legal Practice or as a Multi-Disciplinary Partnership; • Developments affecting trust accounts and client money dealings more generally; • Recent case law, Tribunal decisions and Legal Services Commission guidelines in relation to the new conduct standards of Unsatisfactory Professional Conduct and Professional Misconduct; and • The impact of the new legislation and regulatory environment on a range of traditional ethical duty categories such as the duty to communicate, costs and billing practices, as well as the paramount duties to the court and to the administration of justice. An invaluable reference for legal professionals, this book is also an important resource for law students grappling with questions raised by legal ethics and their application to the workplace.

Theoretical investigation of mechanisms of formation and interaction of nanoparticles

In this thesis an investigation into theoretical models for formation and interaction of nanoparticles is presented. The work presented includes a literature review of current models followed by a series of five chapters of original research. This thesis has been submitted in partial fulfilment of the requirements for the degree of doctor of philosophy by publication and therefore each of the five chapters consist of a peer-reviewed journal article. The thesis is then concluded with a discussion of what has been achieved during the PhD candidature, the potential applications for this research and ways in which the research could be extended in the future. In this thesis we explore stochastic models pertaining to the interaction and evolution mechanisms of nanoparticles. In particular, we explore in depth the stochastic evaporation of molecules due to thermal activation and its ultimate effect on nanoparticles sizes and concentrations. Secondly, we analyse the thermal vibrations of nanoparticles suspended in a fluid and subject to standing oscillating drag forces (as would occur in a standing sound wave) and finally on lattice surfaces in the presence of high heat gradients. We have described in this thesis a number of new models for the description of multicompartment networks joined by a multiple, stochastically evaporating, links. The primary motivation for this work is in the description of thermal fragmentation in which multiple molecules holding parts of a carbonaceous nanoparticle may evaporate. Ultimately, these models predict the rate at which the network or aggregate fragments into smaller networks/aggregates and with what aggregate size distribution. The models are highly analytic and describe the fragmentation of a link holding multiple bonds using Markov processes that best describe different physical situations and these processes have been analysed using a number of mathematical methods. The fragmentation of the network/aggregate is then predicted using combinatorial arguments. Whilst there is some scepticism in the scientific community pertaining to the proposed mechanism of thermal fragmentation,we have presented compelling evidence in this thesis supporting the currently proposed mechanism and shown that our models can accurately match experimental results. This was achieved using a realistic simulation of the fragmentation of the fractal carbonaceous aggregate structure using our models. Furthermore, in this thesis a method of manipulation using acoustic standing waves is investigated. In our investigation we analysed the effect of frequency and particle size on the ability for the particle to be manipulated by means of a standing acoustic wave. In our results, we report the existence of a critical frequency for a particular particle size. This frequency is inversely proportional to the Stokes time of the particle in the fluid. We also find that for large frequencies the subtle Brownian motion of even larger particles plays a significant role in the efficacy of the manipulation. This is due to the decreasing size of the boundary layer between acoustic nodes. Our model utilises a multiple time scale approach to calculating the long term effects of the standing acoustic field on the particles that are interacting with the sound. These effects are then combined with the effects of Brownian motion in order to obtain a complete mathematical description of the particle dynamics in such acoustic fields. Finally, in this thesis, we develop a numerical routine for the description of "thermal tweezers". Currently, the technique of thermal tweezers is predominantly theoretical however there has been a handful of successful experiments which demonstrate the effect it practise. Thermal tweezers is the name given to the way in which particles can be easily manipulated on a lattice surface by careful selection of a heat distribution over the surface. Typically, the theoretical simulations of the effect can be rather time consuming with supercomputer facilities processing data over days or even weeks. Our alternative numerical method for the simulation of particle distributions pertaining to the thermal tweezers effect use the Fokker-Planck equation to derive a quick numerical method for the calculation of the effective diffusion constant as a result of the lattice and the temperature. We then use this diffusion constant and solve the diffusion equation numerically using the finite volume method. This saves the algorithm from calculating many individual particle trajectories since it is describes the flow of the probability distribution of particles in a continuous manner. The alternative method that is outlined in this thesis can produce a larger quantity of accurate results on a household PC in a matter of hours which is much better than was previously achieveable.

How to tell the difference between production and consumption : a case study in Doctor Who fandom

A television series is tagged with the label "cult" by the media, advertisers, and network executives when it is considered edgy or offbeat, when it appeals to nostalgia, or when it is considered emblematic of a particular subculture. By these criteria, almost any series could be described as cult. Yet certain programs exert an uncanny power over their fans, encouraging them to immerse themselves within a fictional world.In Cult Television leading scholars examine such shows as The X-Files; The Avengers; Doctor Who, Babylon Five; Star Trek; Xena, Warrior Princess; and Buffy the Vampire Slayer to determine the defining characteristics of cult television and map the contours of this phenomenon within the larger scope of popular culture.Contributors: Karen Backstein; David A. Black, Seton Hall U; Mary Hammond, Open U; Nathan Hunt, U of Nottingham; Mark Jancovich; Petra Kuppers, Bryant College; Philippe Le Guern, U of Angers, France; Alan McKee; Toby Miller, New York U; Jeffrey Sconce, Northwestern U; Eva ViethSara Gwenllian-Jones is a lecturer in television and digital media at Cardiff University and co-editor of Intensities: The Journal of Cult Media.Roberta E. Pearson is a reader in media and cultural studies at Cardiff University. She is the author of the forthcoming book Small Screen, Big Universe: Star Trek and Television.

Analysing strategic alliances in building construction

Building construction is a highly competitive and risky business. This competitiveness is compounded where conflicting objectives amongst contracting and subcontracting firms sets the stage for an adversarial and potentially destructive approach. There is a need for change in the construction industry—not only to a more cooperative approach to build mutual trust, respect and good faith—but also from a confrontationist and adversarial attitude to a harmonious relationship. It is necessary to change the culture to create a win-win situation. “Strategic Alliances” is one such concept. A strategic alliance is a cooperative arrangement between two or more organisations that forms part of their overall strategies, and contributes to achieving their major goals and objectives. This paper begins with an overview of the Australian building construction industry, then reviews the literature and describes an analysis framework comprising six attributes of strategic alliances—trust, commitment, interdependence, cooperation, communication, and joint problem solving. Given the trend towards greater emphasis on broader contracting firm performance criteria, indicators are proposed as a component of the tender evaluation process for public works.

Comprehensive standardized data definitions for acute coronary syndrome research in emergency departments in Australasia

Patients with chest discomfort or other symptoms suggestive of acute coronary syndrome (ACS) are one of the most common categories seen in many Emergency Departments (EDs). While the recognition of patients at high-risk of ACS has improved steadily, identifying the majority of chest pain presentations who fall into the low-risk group remains a challenge. Research in this area needs to be transparent, robust, applicable to all hospitals from large tertiary centres to rural and remote sites, and to allow direct comparison between different studies with minimum patient spectrum bias. A standardised approach to the research framework using a common language for data definitions must be adopted to achieve this. The aim was to create a common framework for a standardised data definitions set that would allow maximum value when extrapolating research findings both within Australasian ED practice, and across similar populations worldwide. Therefore a comprehensive data definitions set for the investigation of non-traumatic chest pain patients with possible ACS was developed, specifically for use in the ED setting. This standardised data definitions set will facilitate ‘knowledge translation’ by allowing extrapolation of useful findings into the real-life practice of emergency medicine.

Potency in professional development for teachers

There has been significant research into the impact of professional development (PD) on professional organisation and behaviour. PD has emerged in a diversity of forms in schools. Programs range form one hit seminars provided by an external consultant, through to a broad range of programmed development plans that integrate seminars; school based planning groups, action research, collaborative projects across schools, clusters and with critical friends, and mentoring. PD has been delivered to prompt school and teacher professional transformation or to support an ongoing development plan. PD is not uni-lateral and exists to support a very wide range of school and teacher development needs. The relevance and effectiveness of PD design and delivery is tied to the nature of the PD need and the context of provision. This paper reports an investigation into efficacy of various approaches to PD in Queensland schools. The research drew on responses to an online survey tool, focus groups and semi-structured interviews with PD coordinators, teachers, and school and district administrators to develop a model for effective PD planning that considers strategies for addressing current and future PD need and amelioration of barriers to PD effectiveness.

Modelling sustainable and optimal solutions for building services integration in early architectural design : confronting the software and professional interoperability deficit

Decisions made in the earliest stage of architectural design have the greatest impact on the construction, lifecycle cost and environmental footprint of buildings. Yet the building services, one of the largest contributors to cost, complexity, and environmental impact, are rarely considered as an influence on the design at this crucial stage. In order for efficient and environmentally sensitive built environment outcomes to be achieved, a closer collaboration between architects and services engineers is required at the outset of projects. However, in practice, there are a variety of obstacles impeding this transition towards an integrated design approach. This paper firstly presents a critical review of the existing barriers to multidisciplinary design. It then examines current examples of best practice in the building industry to highlight the collaborative strategies being employed and their benefits to the design process. Finally, it discusses a case study project to identify directions for further research.