Dependence of Response Functions and Orbital Functionals on Occupation Numbers

Explicitly orbital-dependent approximations to the exchange-correlation energy functional of density functional theory typically not only depend on the single-particle Kohn-Sham orbitals but also on their occupation numbers in the ground-state Slater determinant. The variational calculation of the corresponding exchange-correlation potentials with the optimized effective potential (OEP) method therefore also requires a variation of the occupation numbers with respect to a variation in the effective single-particle potential, which is usually not taken into account. Here it is shown under which circumstances this procedure is justified.

Four by two theory of non-profit museum governance

As plainly illustrated by the collapse of Enron in the US and HIH in Australia, the world of organisational governance is complicated. In response to ongoing trustee tensions, legislative reforms have been adapted to encourage organisational performance. However, limited theoretical foundation exists regarding how trustee dynamics are forced to adjust within non-profit museums. The trustee’s world requires insights from different mindsets to be synthesised into a whole. The purpose of this article is to examine the research conducted on governance and apply it to the non-profit museum. The article contends that most research on governance has been conducted in the for-profit arena, with little robust empirical research having been conducted on non-profit governance. It identifies concerns with the thrust of articles published as they restrict new theory development. The article provides a four by two theory of non-profit museum governance, that is characterised by close interaction with the research published and application to the non-profit museum. It concludes by demonstrating the increased performance opportunity of a model to the non-profit museum seeking to be accountable in an increasingly complex and demanding environment.

Aesthetic dimensions of educational administration and leadership

The Aesthetic Dimensions of Educational Administration and Leadership provides an aesthetic critique of educational administration and leadership. It demonstrates the importance of aesthetics on all aspects of the administrative and leadership world: the ways ideas and ideals are created, how their expression is conveyed, the impact they have on interpersonal relationships and the organizational environment that carries and reinforces them, and the moral boundaries or limits that can be established or exceeded.

The book is divided into three sections.
Section I examines various philosophical traditions in aesthetics as they inform administrative life, focussing on major modern traditions arising from Kant, romanticism and Nietzsche, Collingwood, the pragmatic school, and critical theory.
Section II explores four aesthetic sources for administrative critique - architecture, literature, film, and movement - as they serve both to understand the social construction of administration and leadership and provide a critique of values, roles, power and authority.
Section III examines more topical and applied problems of charisma, heroism, and authority in practice, concluding with a discussion of the aesthetic analysis of politics and power within the context of contemporary educational administration and leadership theory.

While presenting a significant departure from conventional studies in the field, the international contributors reflect a continuity of thought on the creation, use and abuse of administrative and leadership authority from the writings of Plato through to contemporary theory. This book should appeal to school administrators and leaders and those aspiring to these roles.

Subcultural capital and the female 'underclass'? A feminist response to an underclass discourse

It is often argued that economically marginalized young women occupy a school and post-school underclass, and that this underclass has a particular culture associated with it. Such views provoke a profound ambivalence in many of those who work with such young people. On the one hand, they are anxious to acknowledge the culture of the communities to which marginalized young women belong. On the other hand, they wish to avoid the pernicious implications of underclass theories that suggest disadvantage is the result of the culture and values of marginalized social groupings. This paper offers an overview and feminist critique of the structuralist and cultural or behaviourist strands of underclass theory. It focuses particularly on the work of Charles Murray, a major proponent of the culturalist perspective and the representation of the single mother in this discourse. It then considers how a less punitive theorization of marginalized cultures might be achieved by drawing on and adapting concepts from Pierre Bourdieu's sociology. The paper reflects on how such ideas might serve as a way of exploring how gender impacts on the forms of cultural capital available to young women in difficult economic circumstances.

Teacher education in a global context : towards a defensible theory of teacher education

This paper examines some of the effects of globalisation on education and teacher education. In particular it considers the contradictory demands of economic and cultural forms of globalisation, and between globalisation and localisation. Attempts to construct an 'education space' in Europe and Asia are considered and various responses of teacher education systems are outlined. A defensible theory of teacher education is presented around the transformation of curriculum, pedagogy, assessment and the practicum: one that might allow a creative response to the contradictions of globalisation.

Duality theory and forms of organizing

This paper presents results from a survey of organizing forms in Australia's largest public companies between 2000 and 2004. The study sought to identify trends in forms of organizing and the extent to which the uptake of new forms led to a decrease in traditional forms of organizing. The analysis revealed changes across the organizational dimensions of structures, processes and boundaries. While Australian firms were clearly interested in exploring new forms of organizing, uptake was not universal, nor at the expense of traditional forms of organizing. An admixture of traditional and new, or dual, forms of organizing emerged as the preferred response to environmental turbulence. This paper employs and extends duality theory to explain the changes that occurred in Australian public companies over the four year period. Duality theory is operationalized in terms of five duality characteristics, which are employed to assess the composition and balance of traditional and new fOlms of organizing. The paper proposes that a dualities aware perspective offers a potential way forward in managing the balance between ostensibly contradictory forces of continuity and change.

Grounded theory of nursing's contribution to inpatient rehabilitation

There is growing awareness of the benefits of rehabilitation both in Australia and overseas. While the provision of rehabilitation services is not new, recognition of this type of health service as an integral part of health care has been linked to changes in the provision of acute care services, advances in medical technology, improvements in the management of trauma and an ageing population. Despite this, little attention has been paid to nursing's contribution to patient rehabilitation in Australia. The aim of this grounded theory study, therefore, was to collect and analyse nurses' reports of their contributions to patient rehabilitation and to describe and analyse contextual factors influencing that contribution. Data were collected during interviews with registered and enrolled nurses working in five inpatient rehabilitation units in New South Wales and during observation of the nurses' everyday practice. A total of 53 nurses participated in the study, 35 registered nurses and 18 enrolled nurses. Grounded theory, informed by the theoretical perspective of symbolic interactionism, was used to guide data analysis, the ongoing collection of data and the generation of a substantive theory. The findings revealed six major categories. One was an everyday problem labelled incongruence between nurses' and patients' understandings and expectations of rehabilitation. Another category, labelled coaching patients to self-care, described how nurses independently negotiated the everyday problem of incongruence. The remaining four categories captured conditions in the inpatient context which influenced how nurses could contribute to patient rehabilitation. Two categories, labelled segregation: divided and dividing work practices between nursing and allied health and role ambiguity, were powerful in shaping nursing's contribution as they acted individually and synergistically to constrain nursing's contribution to patient rehabilitation. The other two categories, labelled distancing to manage systemic constraints and grasping the nettle to realise nursing's potential, represent the mutually exclusive strategies nurses used in response to segregation and role ambiguity. From exploration of the relationship between the six categories, the core category and an interactive grounded theory called opting in and opting out emerged. In turn, this grounded theory reveals nursing's contribution to inpatient rehabilitation as well as contextual conditions constraining that contribution. The significance of these findings is made manifest through their contribution to the advancement of nursing knowledge and through implications for nursing practice and education, rehabilitation service delivery and research.

Reinforcement sensitivity theory : a paradigm for understanding the motivational processes underlying alcohol use

Provides an examination of the processes which motivate individuals to drink alcohol. It was found that heavier drinkers are highly sensitive to reward yet more likely to experience negative affect, both generally, and in response to alcohol-related cues. Based on these findings a model focusing on the links between personality, mood and craving for alcohol was developed.

A state space based approach in non-linear hemodynamic response modeling with fMRI data

In this paper we use the modified and integrated version of the balloon model in the analysis of fMRI data. We propose a new state space model realization for this balloon model and represent it with the standard A,B,C and D matrices widely used in system theory. A second order Padé approximation with equal numerator and denominator degree is used for the time delay approximation in the modeling of the cerebral blood flow. The results obtained through numerical solutions showed that the new state space model realization is in close agreement to the actual modified and integrated version of the balloon model. This new system theoretic formulation is likely to open doors to a novel way of analyzing fMRI data with real time robust estimators. With further development and validation, the new model has the potential to devise a generalized measure to make a significant contribution to improve the diagnosis and treatment of clinical scenarios where the brain functioning get altered. Concepts from system theory can readily be used in the analysis of fMRI data and the subsequent synthesis of filters and estimators.

Aesthetic experience and innovation in practice–led research

Within the context of ERA, this paper addresses the question of how we might provide practitioners with a framework for understanding creative arts research as the production of new knowledge. Drawing on the thought of Julia Kristeva, it examines the aesthetic underpinnings of discovery and the implications and significance of this for research training and the development of more effective pedagogies both within and beyond the university.
Kristeva’s work constitutes both an implicit and explicit critique of science allowing us to conceive of artistic research as an experiential and performative production of knowledge. As a mode of enquiry, artistic practice reveals the inextricable and necessary relationship between practice and theory, interpretation and making, art and life. This interrelationship underpins the aesthetic dimension of revolutionary practice and its production of unfamiliar or mutant forms of knowledge that is often difficult to grasp in terms of its capacity to engender social change and innovation. In the context of creative arts practice as research, the notion of experience-in-practice indicates that interpretation and analysis must fall to the practitioner-researcher, himself or herself, rather than to another person who has been external to the procedures of making, to trace the significant experiential, subjective and emergent processes involved in the production of the work that allows it to reveal the new. This is necessary if the generative and revolutionary impact of artistic research is to be fully understood in the wider research arena. In the final part of this paper, I will apply and illustrate these ideas through an analysis of a number of artistic research projects successfully completed in Australia.

Extreme response bias in measuring susceptibility to smoking.

Pierce, Choi, Gilpin, Farkas, and Berry (1998) were the first to claim that they could provide causal evidence that tobacco industry advertising and promotion caused adolescent smoking. This claim continues to significantly influence the theory and conceptualization of how youth react to tobacco marketing. The Pierce et al. (1998) methodology has been used by many researchers to establish the influence of tobacco marketing on adolescent smoking (Goldberg, 2003; NCI, 2006; Sargent, Dalton, & Beach, 2000). Pierce et al. (1998) selected respondents for only the second of their two survey longitudinal study because they chose the extreme-negative response. This choice could be the result of the tendency of some significant number of sample members exhibiting extreme-response bias. The results from an analysis of several questions from the original data used by Pierce et al. (1998) has suggested that there is a significant extreme-response style pattern in the Pierce et al. data. This unaccounted for bias in the responses of their sample was due to the procedure used by Pierce et al. (1998) in the selection of their respondents. The Pierce et al. (1998) sample selection procedure requires more research before the causal link can be claimed.

Bowerbirds, art and aesthetics : are bowerbirds artists and do they have an aesthetic sense?

Male bowerbirds create and decorate a structure called a bower which serves only to attract females for mating, and females visit and choose one among many bower owners before deciding which male to mate with. Is what they do art, and do they have an aesthetic sense? I propose operational definitions of art, judgement, and an aesthetic sense which depend upon communication theory which allow one to get explicit answers to this question. By these definitions Great Bowerbirds are artists, judge art, and therefore have an aesthetic sense.

Ratio-dependent response of a temperate Australian estuarine system to sustained nitrogen loading

Classical resource- and the less studied ratio-dependent models of predator–prey relationships provide divergent predictions as to the sustained ecological effects of bottom-up forcing. While resource-dependent models, which consider only instantaneous prey density in modelling predator responses, predict community responses that are dependent on the number of trophic levels in a system, ratio-dependent models, which consider the number of prey per consumer, predict proportional increase in each level irrespective of chain length. The two models are only subtly different for systems with two or three trophic levels but in the case of four trophic levels, predict opposite effects of enrichment on primary producers. Despite the poor discriminatory power of tests of the models in systems with two or three trophic levels, field tests in estuarine and marine systems with four trophic levels have been notably absent. Sampling of phytoplankton, macroinvertebrates, invertebrate-feeding fishes, piscivorous fishes in Kooloonbung Creek, Hastings River estuary, eastern Australia, subject to over 20 years of sewage discharge, revealed increased abundances in all four trophic levels at the disturbed location relative to control sites. Increased abundance of phytoplankton at the disturbed site was counter to the predictions of resource-dependent models, which posit a reduction in the first trophic level in response to enrichment. By contrast, the increase in abundance of this first trophic level and the proportionality of increases in abundances of each of the four trophic groups to nitrogen loading provided strong support for ratio dependency. This first evidence of ratio dependence in an estuarine system with four trophic levels not only demonstrates the applicability of ecological theory which seeks to simplify the complexity of systems, but has implications for management. Although large nutrient inputs frequently induce mortality of invertebrates and fish, we have shown that smaller inputs may in fact enhance biomass of all trophic levels.

Mobile phone-based audience response system and student engagement in large-group teaching

Engaging students in large classes is a challenge at the best of times. Teachers are increasingly seeking the help of new technology to keep the attention of their technologically savvy students. VotApedia, a free cell phone-based audience response system, is one such technology. This research aims to assess economics students' perceptions of use of VotApedia in helping to achieve deeper learning; to map importance of use of audience response technology for students in promoting engagement and to assess the promotion of a positive and active environment in lectures by use of VotApedia in an Australian University. Using the framework of activity theory, it argues that technologies such as VotApedia use positive feedback loops to facilitate improved student engagement and learning.

Beginning again: a response to Rosen and Christie

Genre theory has been around for a long time now. The exchange between Michael Rosen and Frances Christie recently featured in Changing English is the latest in a series of exchanges between advocates of genre and their critics over the past three decades or so. Our aim in this response-essay is not to weigh up the merits of the cases made by Rosen and Christie. Rather, we want to think about how individual teachers might confront the hegemony of genre theory and the harmful effects we believe it is having on language education.

Our starting point is Lisa’s own professional practice, as she enacts it from day to day at a state secondary school in the south-eastern suburbs of Melbourne, one of the most ethnically diverse regions in Australia. We draw on Lisa’s journal to construct a sense of the time and place, as well as samples of students’ writing that she gathered in the course of a year with her Year 7 class, in order to gain a better understanding of her work as an English teacher.

How does this material compare with ‘all the genre work done over some 25–30 years’ by the genre theorists? What ‘knowledge’ will she be able to construct on the basis of the classroom observations that she made over that time? What should we make of the fact that her world is not the same as the world as genre theorists conceive it?