Disease mapping and regression with count data in the presence of overdispersion and spatial autocorrelation: a Bayesian model averaging approach

This paper applies the generalised linear model for modelling geographical variation to esophageal cancer incidence data in the Caspian region of Iran. The data have a complex and hierarchical structure that makes them suitable for hierarchical analysis using Bayesian techniques, but with care required to deal with problems arising from counts of events observed in small geographical areas when overdispersion and residual spatial autocorrelation are present. These considerations lead to nine regression models derived from using three probability distributions for count data: Poisson, generalised Poisson and negative binomial, and three different autocorrelation structures. We employ the framework of Bayesian variable selection and a Gibbs sampling based technique to identify significant cancer risk factors. The framework deals with situations where the number of possible models based on different combinations of candidate explanatory variables is large enough such that calculation of posterior probabilities for all models is difficult or infeasible. The evidence from applying the modelling methodology suggests that modelling strategies based on the use of generalised Poisson and negative binomial with spatial autocorrelation work well and provide a robust basis for inference.

Innovating from the inside: teacher influence and the 'promisingness' of digital learning environments

In line with global trends, Australian educational policy emphatically recognises the need for contemporary learners to be digitally literate, with provision of 'one-to-one' devices to individual learners in schools a major implementation strategy. However, without teacher commitment, the benefits of such investment in one-to-one programs are undermined and the devices themselves are under-utilised. Too often, the focus on hardware is not accompanied by insight into the organisational learning and change required in pedagogical practices. In the knowledge that curriculum and pedagogical renewal rests squarely with teachers and leaders rather than with technological hardware and software per se, this article draws on outcomes/findings from a school/university ethnographic collaboration which closely explored the introduction of a school-funded, one-to-one netbook program in a school excluded from a state-wide initiative. It seeks to make visible the often overlooked work of teachers as members of learning organisations through a narrative of change. The narrative focuses on teacher agency and capacity to mobilise a school community to commit to a vision of; no-blame risk taking; collective professional learning; the power of purpose and passion; leadership in the face of government practice which disempowered teachers and disadvantaged students; and the development of an innovation 'from the inside'.

Cross-continental comparison of national food consumption survey methods—A narrative review

Food consumption surveys are performed in many countries. Comparison of results from those surveys across nations is difficult because of differences in methodological approaches. While consensus about the preferred methodology associated with national food consumption surveys is increasing, no inventory of methodological aspects across continents is available. The aims of the present review are (1) to develop a framework of key methodological elements related to national food consumption surveys, (2) to create an inventory of these properties of surveys performed in the continents North- America, South-America, Asia and Australasia, and (3) to discuss and compare these methodological properties cross-continentally. A literature search was performed using a fixed set of search terms in different databases. The inventory was completed with all accessible information from all retrieved publications and corresponding authors were requested to provide additional information where missing. Surveys from ten individual countries, originating from four continents are listed in the inventory. The results are presented according to six major aspects of food consumption surveys. The most common dietary intake assessment method used in food consumption surveys worldwide is the 24-HDR (24 h dietary recall), occasionally administered repeatedly, mostly using interview software. Only three countries have incorporated their national food consumption surveys into continuous national health and nutrition examination surveys.

Cyborg presence in narrative theatre

New technologies are transforming the shape and function of contemporary performance practice. Dance in particular has been at the forefront of dissolving the boundaries between humans and technology. In Australia alone, works such as Gideon Obarzanek's GLOW (Chunky Move) and Garry Stewart's Proximity (Australian Dance Theatre) have offered technology a role traditionally preserved only for the live human performer. As these technologies infiltrate theatre practice and their capacity to be co-actors with humans on stage increases, we need to carefully interrogate the notion of the actor's presence. For an overwhelming number of scholars and critics, presence is the defining quality of theatrical performance. Theatre has been privileged as the site where people witness other people together in the same physical space. Digital technologies can be seen as a threat to this and to the actor's presence. Cormac Power's Presence in Play provides a comprehensive analysis of theatrical presence that encapsulates a poststructuralist critique of presence while maintaining the notion of 'presence' as a key aspect of theatre. In this article, I take up Power's category of the literal mode of presence and examine three case studies that use digital technology in ways that disturb traditional conceptions of presence. I investigate the impact that digital technologies in live performance have on theatre's claims to literal presence. I also investigate the indirect impact that these technologies have on forms of fictional and auratic presence (these are Power's terms, which I will define shortly). First, I will establish the centrality of presence to the vast body of commentary on theatre; then, I will draw on Derrida's analysis of the metaphysics of presence to unsettle dominant assumptions about the function of presence in theatre, arguing that such a privileging of presence demonises projected media as a form of contamination that impedes theatre's ability to represent 'truth'. I use Jennifer Parker-Starbuck's term 'Cyborg Theatre' to discuss three examples of digital performance that have used technology to question and challenge our relationship to technology in everyday life. These works challenge traditional notions of selfhood and force us to interrogate the borders between the live and the mediated.

A taxonomy and mapping of computer-based critiquing tools

Critics have emerged in recent times as a specific tool feature to support users in computer-mediated tasks. These computer-supported critics provide proactive guidelines or suggestions for improvement to designs, code, and other digital artifacts. The concept of a critic has been adopted in various domains, including medical, programming, software engineering, design sketching, and others. Critics have been shown to be an effective mechanism for providing feedback to users. We propose a new critic taxonomy based on extensive review of the critic literature. The groups and elements of our critic taxonomy are presented and explained collectively with examples, including the mapping of 13 existing critic tools, predominantly for software engineering and programming education tasks to the taxonomy. We believe this critic taxonomy will assist others in identifying, categorizing, developing, and deploying computer-supported critics in a range of domains.

Neojihadism and Muslim–Christian relations in the Mindanao Resistance Movement: a study of Facebook digital narratives

Religion is surely not the most important factor in explaining the conflict in the Southern Philippines. Economic, political and criminal issues also contribute to explaining the violence in the country. Yet the religious narrative influences the narration of the conflict, impacting on its frame of understanding both within the country and from the perspective of global audiences. This study presents the results of field research on three Facebook pages in English (and therefore addressed to global audiences) related to resistance movements in Southern Philippines, notably BIFF and MNLF, which openly include neojihadist symbols and contents in their narratives. How do these narratives depict and affect Christian–Muslim relations within the local movement and the local society in Mindanao? And how does the local version of the global neojihadist narrative contribute to shaping Christian–Muslim relations in the global Muslim public sphere? This article shows the potential impact of the neojihadist ideology on the narration of the resistance movement, highlighting the consequences for the negotiation of Christian and Muslim identities.

Pixel review: Dance and digital wizardry conjure stunning illusions

A number of artists have explored the fusion of technology with performing arts. From Gideon Obarzanek​ and Frieder Weiss' projection mapping techniques with Glow and Mortal Engine to Garry Stewart and Thomas Pachoud's​ experiments with real-time looping and layered video in Proximity, it seems that infusing performance with choreographed bodies, screen-based design and choreographed pixels is the next frontier of contemporary performance.