Meta-analysis: a unifying meta-likelihood approach framing unobserved heterogeneity, study covariates, publication bias, and study quality

OBJECTIVES: This contribution provides a unifying concept for meta-analysis integrating the handling of unobserved heterogeneity, study covariates, publication bias and study quality. It is important to consider these issues simultaneously to avoid the occurrence of artifacts, and a method for doing so is suggested here. METHODS: The approach is based upon the meta-likelihood in combination with a general linear nonparametric mixed model, which lays the ground for all inferential conclusions suggested here. RESULTS: The concept is illustrated at hand of a meta-analysis investigating the relationship of hormone replacement therapy and breast cancer. The phenomenon of interest has been investigated in many studies for a considerable time and different results were reported. In 1992 a meta-analysis by Sillero-Arenas et al. concluded a small, but significant overall effect of 1.06 on the relative risk scale. Using the meta-likelihood approach it is demonstrated here that this meta-analysis is due to considerable unobserved heterogeneity. Furthermore, it is shown that new methods are available to model this heterogeneity successfully. It is argued further to include available study covariates to explain this heterogeneity in the meta-analysis at hand. CONCLUSIONS: The topic of HRT and breast cancer has again very recently become an issue of public debate, when results of a large trial investigating the health effects of hormone replacement therapy were published indicating an increased risk for breast cancer (risk ratio of 1.26). Using an adequate regression model in the previously published meta-analysis an adjusted estimate of effect of 1.14 can be given which is considerably higher than the one published in the meta-analysis of Sillero-Arenas et al. In summary, it is hoped that the method suggested here contributes further to a good meta-analytic practice in public health and clinical disciplines.

A mathematical model, implementation and study of a swarm system

The work reported in this paper is motivated towards the development of a mathematical model for swarm systems based on macroscopic primitives. A pattern formation and transformation model is proposed. The pattern transformation model comprises two general methods for pattern transformation, namely a macroscopic transformation method and a mathematical transformation method. The problem of transformation is formally expressed and four special cases of transformation are considered. Simulations to confirm the feasibility of the proposed models and transformation methods are presented. Comparison between the two transformation methods is also reported.

'John James' and 'The White Stones' p. 71: Music, rhyme, and home

An essay relating 'The Dragon House' by John James to 'Thoughts on the Esterhazy Court Uniform' by J. H. Prynne

Storytelling in song: television music, narrative and allusion in 'The O.C.'

Television’s long-form storytelling has the potential to allow the rippling of music across episodes and seasons in interesting ways. In the integration of narrative, music and meaning found in The O.C. (Fox, FOX 2003-7), popular song’s allusive and referential qualities are drawn upon to particularly televisual ends. At times embracing its ‘disruptive’ presence, at others suturing popular music into narrative, at times doing both at once. With television studies largely lacking theories of music, this chapter draws on film music theory and close textual analysis to analyse some of the programme's music moments in detail. In particular it considers the series-spanning use of Jeff Buckley’s cover of ‘Hallelujah’ (and its subsequent oppressive presence across multiple televisual texts), the end of episode musical montage and the use of recurring song fragments as theme within single episodes. In doing so it highlights music's role in the fragmentation and flow of the television aesthetic and popular song’s structural presence in television narrative. Illustrating the multiplicity of popular song’s use in television, these moments demonstrate song’s ability to provide narrative commentary, yet also make particular use of what Ian Garwood describes as the ability of ‘a non-diegetic song to exceed the emotional range displayed by diegetic characters’ (2003:115), to ‘speak’ for characters or to their feelings, contributing to both teen TV’s melodramatic affect and narrative expression.

Music, language and emotion

This paper attempts to demonstrate the link between art and pain, or more specifically between music, forms of poetic language and emotion – a link that for me is often emphasised in times of grief and sadness.

Validated model and study of a rammed earth wall building

A 2100 m² (GFA) two-storey rammed earth building was built on the Thurgoona campus of Charles Sturt University in 1999. The building is novel both in the use of materials and equipment for heating and cooling. The climate at Wodonga can be characterised as hot and dry, so the challenge of providing comfortable working conditions with minimal energy consumption is considerable. This paper describes a thermal model of one of the second-storey offices on the west-end of the building. The simulation software, TRNSYS, has been used to predict office temperatures and comparisons are made between these and measurements made over a typical week in summer. Reasonable agreement has been achieved under most conditions. The model has been used to investigate key building parameters and strategies, including night flushing, to improve the thermal comfort in the office.

Music education and minority groups cultural and musical identities in the 'newer' South Africa : white Afrikaners and Indians

Music Education, as well as cultural and musical identities are all being renegotiated, post-Apartheid, within the so-called 'newer' rather than the commonly known 'new' South Africa. The developing situation with certain minority groups is particularly interesting. Education in general has undergone much change since the first democratic elections in 1994: music education specifically has been affected by such change in terms of content, delivery and assessment. Within the South African context, cultural and musical identities are often intertwined with language, racial and even tribal identities, and discussing one implies the others. We are particularly interested here in the role of formal Music Education in relation to white Afrikaners and Indians as they renegotiate their cultural development, including musical aspects

Jabulani Africa: celebrating music making and finding meaning in Australia

This paper begins to explore the notion of a South African identity in Australia through community music making. Solbu (cited in Herbst, Nzewi and Agawu, 2003) highlights the strong link between music and society, arguing that, music creates and confirms identity, and challenges cultural and communal borderlines. This paper situates itself in an Australian society that is becoming increasingly globalised and cosmopolitan. The South African Jabulani choir in Melbourne is just one example that illustrates a context of diversity as one that promotes respect for a multicultural society and one that promotes respect for diversity across the community. This paper focuses on the cultural and musical identity of South Africans as a minority group in Australia and offers some perspectives on South Africans in Australia, music and cultural diffusion, identity, and the notion of making music together by people in a community music setting.

What have we learnt? Pre-service music teaching and learning

Making pre-service teacher education relevant to teaching through onsite visits is not new to tertiary institutions in Australia. "The merits of field based teacher education are frequently cited, concluding increased relevance for students and greater accountability for colleges through participation of local schools" (Elmore, 1979, p. 378). This article reports on a Deakin University initiative with a local school in semester one 2008 with the Bachelor of Teaching (Primary and Secondary) music methodology students. The school chosen has a specialist music teacher. Conkling (2007) points out, "when the experienced music teacher presents a compelling vision of music teaching, pre-service teachers not only attend to this exemplar of teaching practice, but they also recognize the influences of teaching practices on younger students learning" (p. 45). This article explores the concept of school based partnerships and professional development as a way to enhance pre-service music methodology students understanding of teaching and learning. This article highlights some of our reflections during our five-week visit. We discuss the benefits of the experience from the point of view of a university student and a music education lecturer. Whilst such an experience had benefits for the school and the university, we also highlight some limitations that were encountered.

Developing the whole child? Tensions between sport and study in Australian independent schools

This paper reports on a research project that set out to examin the relationship between students' involvement in school co-curricular activities and their academic performance.  The warrant for the study emerges out of consistent claims made about the provision of co-curricular, naming sporting, activities and the development of a more rounded and successful student.  The primary question being asked here was: 'Are student's academic performances, as measured by their results for tertiary entrance in their final year of school, improved or reduced by their participation in co-curricular activities?'  The study used a mix of quantitative and qualitative methods to interrogate this relationship.