The impact of organizational boundaries on (re)building capabilities

The literature concerning firm boundaries has focussed extensively on the rationale for different boundary choices and the economic efficiencies that such choices can make. There is also an acknowledged position that a firm’s boundary choices may impact the ability of a firm to maintain and even build new capabilities, though such choices may not be optimal from an economic efficiency perspective. It is in this context that we seek to investigate how firms make this potential trade-off in respect of their boundary choices and how these choices are implemented across a wide range of activities. Using qualitative data from three public sector construction oriented organizations, we observe that neither pure make nor buy decisions assisted significantly in capability building. Dual modes – where firms make and buy the same product or service simultaneously – provided firms with some opportunities to manage this paradox, but the most successful decisions seemed to occur in respect of using intermediate governance modes such as alliances. We also observed that the boundary choice was just one dimension of the capability building process and firms pursuing the same boundary choice decisions often had quite divergent outcomes on the basis of their boundary management and the ability of knowledge to move across firm boundaries.

Re-visioning the Queensland Youth Sector : principles to inform the Queensland Government's youth strategy and review process

This discussion paper has been provided to assist the Department of Communities, Child Safety and Disability Services (DOCCSDS) in developing the Queensland Government’s Youth Strategy and inform the review of state government funded youth services. The paper lists a number of key concepts and social determinants which need to be considered in this undertaking. Additionally, it proposes a number key concepts and principles pertinent to understanding and working with young people, and for quality youth service provision.

Using GPS technology to (re)-examine operational definitions of 'neighbourhood' in place-based health research

BACKGROUND Inconsistencies in research findings on the impact of the built environment on walking across the life course may be methodologically driven. Commonly used methods to define 'neighbourhood', from which built environment variables are measured, may not accurately represent the spatial extent to which the behaviour in question occurs. This paper aims to provide new methods for spatially defining 'neighbourhood' based on how people use their surrounding environment. RESULTS Informed by Global Positioning Systems (GPS) tracking data, several alternative neighbourhood delineation techniques were examined (i.e., variable width, convex hull and standard deviation buffers). Compared with traditionally used buffers (i.e., circular and polygon network), differences were found in built environment characteristics within the newly created 'neighbourhoods'. Model fit statistics indicated that exposure measures derived from alternative buffering techniques provided a better fit when examining the relationship between land-use and walking for transport or leisure. CONCLUSIONS This research identifies how changes in the spatial extent from which built environment measures are derived may influence walking behaviour. Buffer size and orientation influences the relationship between built environment measures and walking for leisure in older adults. The use of GPS data proved suitable for re-examining operational definitions of neighbourhood.

Predictors of re-epithelialization in pediatric burn

INTRODUCTION An important treatment goal for burn wounds is to promote early wound closure. This study identifies factors associated with delayed re-epithelialization following pediatric burn. METHODS Data were collected from August 2011 to August 2012, at a pediatric tertiary burn center. A total of 106 burn wounds were analyzed from 77 participants aged 4-12 years. Percentage of wound re-epithelialization at each dressing change was calculated using Visitrak. Mixed effect regression analysis was performed to identify the demographic factors, wound and clinical characteristics associated with delayed re-epithelialization. RESULTS Burn depth determined by laser Doppler imaging, ethnicity, pain scores, total body surface area (TBSA), mechanism of injury and days taken to present to the burn center were significant predictors of delayed re-epithelialization, accounting for 69% of variance. Flame burns delayed re-epithelialization by 39% compared to all other mechanisms (p=0.003). When initial presentation to the burn center was on day 5, burns took an average of 42% longer to re-epithelialize, compared to those who presented on day 2 post burn (p<0.000). Re-epithelialization was delayed by 14% when pain scores were reported as 10 (on the FPS-R), compared to 4 on the first dressing change (p=0.015) for children who did not receive specialized preparation/distraction intervention. A larger TBSA was also a predictor of delayed re-epithelialization (p=0.030). Darker skin complexion re-epithelialized 25% faster than lighter skin complexion (p=0.001). CONCLUSIONS Burn depth, mechanism of injury and TBSA are always considered when developing the treatment and surgical management plan for patients with burns. This study identifies other factors influencing re-epithelialization, which can be controlled by the treating team, such as effective pain management and rapid referral to a specialized burn center, to achieve optimal outcomes.

Play and heal : randomized controlled trial of Ditto intervention efficacy on improving re-epithelialization in pediatric burns

BACKGROUND: The relationships between pain, stress and anxiety, and their effect on burn wound re-epithelialization have not been well explored to-date. The aim of this study was to investigate the effect of the Ditto (a hand-held electronic medical device providing procedural preparation and distraction) intervention on re-epithelialization rates in acute pediatric burns. METHODS/DESIGN: From August 2011 to August 2012, children (4-12 years) with an acute burn presenting to the Royal Children's Hospital, Brisbane, Australia fulfilled the study requirements and were randomized to [1] Ditto intervention or [2] standard practice. Burn re-epithelialization, pain intensity, anxiety and stress measures were obtained at every dressing change until complete wound re-epithelialization. RESULTS: One hundred and seventeen children were randomized and 75 children were analyzed (n=40 standard group; n=35 Ditto group). Inability to predict wound management resulted in 42 participants no longer meeting the eligibility criteria. Wounds in the Ditto intervention group re-epithelialized faster than the standard practice group (-2.14 days (CI: -4.38 to 0.10), p-value=0.061), and significantly faster when analyses were adjusted for mean burn depth (-2.26 days (CI: -4.48 to -0.04), p-value=0.046). Following procedural preparation at the first change of dressing, the Ditto group reported lower pain intensity scores (-0.64 (CI: -1.28, 0.01) p=0.052) and lower anxiety ratings (-1.79 (CI: -3.59, 0.01) p=0.051). At the second and third dressing removals average pain (FPS-R and FLACC) and anxiety scores (VAS-A) were at least one point lower when Ditto intervention was received. CONCLUSIONS: The Ditto procedural preparation and distraction device is a useful tool alongside pharmacological intervention to improve the rate of burn re-epithelialization and manage pain and anxiety during burn wound care procedures.

Do look now : re-imagining and re-purposing audiovisual creative practice

The appropriation and elaborate re-working of mediated images and sound stand in a fluid relationship with established notions such as creativity, originality and artistic freedom. The evocative, recontextualised montage works of the eminent video artists Christian Marclay (The Clock) and Tracey Moffatt (Other; Love) may be viewed critically in the light of several theorists’ work, such as Walter Benjamin’s ideas on the crisis of reproduction and reactivation. The ironic pastiche, Do Look Now, a recent video installation work, is presented here as a similar dialogical intervention, representing a subversive deconstruction and critique of filmic codes and conventions, as well as being a new work crafted out of old film clips. (The films quoted in the work are listed here in an Appendix). These practical provocations are framed within a renewed, ‘queering’ investigation of creative works. Such an exploration is, arguably, both illuminating and liberating for particular practitioners and researchers engaged with the unpredictable intersections of creative meaning-making in a heavily legalised, mediated and digitised world.

Response to re : putting vital stains in context

A response to: "Re: Putting vital stains in context" by Eric Papas & Lyndon Jones, published in the same issue of this journal. "There has been considerable discussion in recent times about the origins of solution-induced corneal staining (SICS) and I welcome this opportunity to further clarify some points raised in my paper1 in relation to certain issues highlighted by Drs Papas and Jones.2 Part of the difficulty in understanding these phenomena relates to the imprecise terminology used. For example, Drs Papas and Jones state ‘. . . SICS..."

Response to re : putting vital stains in context

A response to "Re: Putting vital stains in context" by Charles W McMonnies, published in the same issue of this journal. "I thank Professor McMonnies for his thoughtful comments,1 which rightly forcemeto more directly address the clinical ramifications of solution-induced corneal staining (SICS). I concur with his observation that determining whether the staining can be attributed to preservative-associated transient hyperfluorescence (PATH) or true pathology can be difficult in a typical clinical situation, perhaps requiring two visits in a single day. There is no easy answer to this dilemma..."

Branding Melbourne : re-imagining the landscape through Christos Tsiolkas’ The Slap (2008)

In this paper I am focusing on one aspect of what Henri Lefebvre first termed the espace vecu “the fully lived space” (Soja 1999); and that aspect of space which exists within the geographical imagination. Building upon Lefebvre’s ideas Edward Soja acknowledges that “lived cities are never completely knowable” (1999) although in this paper I argue that often a fictional city is much more complex and diverse, much more revealing of the practices of everyday life than the homogenised concept often put forward in public discourses. Recent Melbourne fiction opens out this complexity, destabilizing public policy-making to reveal a socially diverse suburban landscape occupying both planned and organic spaces. The text that will be analysed in relation to this year’s conference theme The Geographical Imagination is a fictional text situated in Melbourne called The Slap that was written by Christos Tsiolkas in 2008.

Re-presenting the past : authenticity and the historical novel

This project involved writing Turrwan (great man), a novel set in Queensland in the nineteenth century, and an investigation into the way historical novels portray the past. Turrwan tells the story of Tom Petrie, who was six when he arrived with his family at the notorious Moreton Bay Penal Colony in 1837. The thesis examines historical fiction as a genre with particular focus on notions of historical authenticity. It analyses the complexities involved in a non-Indigenous person writing about the Australian Aboriginal people, and reflects on the process of researching, planning and writing a historical novel.

Re : Why optometry must work from urban and regional Aboriginal health services

We are writing to support the recent Viewpoint written by Anjou, Boudville and Taylor ‘Why optometry must work in Aboriginal Health Services in urban and regional Australia’.[1] We are a group of optometrists who provide optometric services within Aboriginal Health Services in urban and regional settings and we agree that access to optometry in Aboriginal Health Services should be supported and expanded in an effort to ‘close the gap’ for vision.

Food in the city : urban food movements and the (re)imagining of urban spaces

Ethical food movements are growing in number throughout Australia. Amongst these diverse movements are urban agriculture initiatives, which articulate a multitude of social and environmental values. Yet, despite the long history of production and exchange of food in urban areas, planners (and others) often overlook its significance. To assist in addressing this oversight, we take the case study of Melbourne to examine the ways in which participants in urban agriculture are re-imagining urban spaces and the future of agriculture and food systems in Australia. We demonstrate that urban food advocates' politics and practices both challenge and resist the enclosure of urban spaces. This creates new frontiers that transgress social, political, ecological and economic boundaries and edges. These transgressions or counter-enclosures articulate new visions for secure and just food systems and, in so doing, offer insights to assist planners in ensuring Australian cities support socially just and environmentally responsible food systems.

Migrants' use of the Internet in re-settlement

The project is a qualitative and ethnographic study investigating how the internet is used by migrants from cultural and linguistically diverse (CALD) groups. It examines how internet use assists the re- settlement process in Brisbane, Australia. The project aims to support strategies and initiatives in the successful re-settlement of migrants from CALD groups into urban localities. It has 2 main foci: • To find out how and what type of online information and services are used by migrants and what are the barriers to accessing the information. Information and resources about transport, housing, health, social services, education and other information is essential for successful re-settlement. • In what ways is the internet is used as a social medium, to communicate with friends and family in homeland countries and connect with people in local regions, in ways that might help to combat social isolation.

Key-private proxy re-encryption under LWE

Proxy re-encryption (PRE) is a highly useful cryptographic primitive whereby Alice and Bob can endow a proxy with the capacity to change ciphertext recipients from Alice to Bob, without the proxy itself being able to decrypt, thereby providing delegation of decryption authority. Key-private PRE (KP-PRE) specifies an additional level of confidentiality, requiring pseudo-random proxy keys that leak no information on the identity of the delegators and delegatees. In this paper, we propose a CPA-secure PK-PRE scheme in the standard model (which we then transform into a CCA-secure scheme in the random oracle model). Both schemes enjoy highly desirable properties such as uni-directionality and multi-hop delegation. Unlike (the few) prior constructions of PRE and KP-PRE that typically rely on bilinear maps under ad hoc assumptions, security of our construction is based on the hardness of the standard Learning-With-Errors (LWE) problem, itself reducible from worst-case lattice hard problems that are conjectured immune to quantum cryptanalysis, or “post-quantum”. Of independent interest, we further examine the practical hardness of the LWE assumption, using Kannan’s exhaustive search algorithm coupling with pruning techniques. This leads to state-of-the-art parameters not only for our scheme, but also for a number of other primitives based on LWE published the literature.