88 resultados para Limits to arbitrage

em Deakin Research Online - Australia


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The emancipatory goal that underpins critical theories of teaching and learning is built on a theory of rational self-determination. In the context of physical education, critical educators believe that through a process of enlightenment teachers can recognize and transform elements of injustice and inequality that exist, albeit unwittingly, in their practice. However, despite the broad appeal of this orientation there are relatively few empirical accounts of how theories of enlightenment manifest themselves in the practice of emancipation. Propelled by the lacuna that clearly exists between critical theory and critical practice, this paper reports on the introduction of critical social discourses to a preservice PE program. It uses a case study methodology to report on two student-teachers' engagement with a range of critical social discourses during a year-long PE unit. The paper discusses some of the ways these students engaged with the theory and practice of a critical orientation for teaching and learning in physical education. Aspects of their experiences are then interpreted through Fay's (1987) critical but postmodern "limits to change" thesis. The paper concludes with tempered optimism about the potential for critical social discourses to guide preservice teachers in practical ways.

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Popper, Polanyi and Duncker represent the widely held position that theoretical and experimental scientific research are motivated by problems to which discoveries are solutions. According to the argument here, their views are unsupported and - in light of counter-instances, anomalous chance discoveries, and the force of curiosity - over-generalized.

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This study focuses on the way four student-teachers engage with critical social discourses in a year-long physical education unit. The student-teachers were encouraged to examine and (re)construct their pedagogy through their interactions with critical discourses. Drawing on their personal theories and actions, the study examines the extent to which critical intellectual resources can provide pedagogical frames of reference that are 'practical and non-ideal'. Using a critical ethnographic methodology the students' interactions with critical social discourses are diagnosed across three levels. The first level is the case study presentations of each student's engagement with the critical intellectual resources and the extent to which they were able to understand and implement them. The second level involves an interpretation of the individual cases that is informed by Brian Fay's (1987) metatheoretical reconstruction of the critical social sciences. In the third stage of diagnosis the study focuses on retheorising critical aspirations for praxis pedagogy in physical education. Critical scholars within the physical education arena argue that critical praxis represents a pedagogy based on a 'world view' of the potential for agents to engage in a rational reordering of their qualitative existence. The essence of their claim is that critical discourses have the potential to facilitate a mode of praxis through which physical education teachers might better recognise, understand, critique and transform their values and practices. However, there is broad recognition that the translation of social-critical discourses into a pedagogic context is highly problematic. Interpretation of the study is provided by Fay's (1987) 'limits to change' thesis which recognises that critical aspirations must ultimately be adopted and implemented by real people in real settings. As a diagnostic frame of reference, Fay insists that a 'complete' critical theory [of physical education] be simultaneously scientific, critical, practical and non-ideal. In seeking to temper the "e; over-rationalistic"e; tendency of the critical project he recognises the historical, embedded, embodied and traditional nature of human existence Criticisms of critical theories of education traverse a number of philosophic perspectives. Recent post-structural criticisms of truth regimes, knowledge-power differentials, rationality and agency have seriously destabilised modernist justifications of the critical agenda. Critical theories of physical education have not been absolved of such criticism. A prominent element of this study is its promotion of a dialectical relationship between agency and structure to extend critical conceptualisations of physical education pedagogy. Through the mediation of structural determinism and self-determination this research proffers a means of practically advancing a critical praxis in physical education. The conclusion of this thesis outlines some broad recommendations pertaining to the introduction of social critical discourses in physical education teacher education.

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Purpose – The purpose of this paper is to assess the applicability of relational contract theory in situations where government departments contract with non-government welfare organisations to deliver human service programmes. Its limits are highlighted by an assessment of programmes for domestically violent men that epitomise “management of incomplete contracts” central to the theory.

Design/methodology/approach – The paper is based on an evaluation of contracted-out programmes for perpetrators of domestic violence in Australia that set out to compare and contrast distinct models of service delivery by documenting programme logic, service delivery effectiveness and effects on programme participants. It reflects on the difficulties of monitoring such programmes and considers the implications of this for contracting theory and for human service practice.

Findings – In contrast to critiques of contracting-out in a neo-liberal environment that emphasise how accountability and reporting requirements limit the autonomy of contracted agencies, this paper highlights considerable variation in how programmes were managed and delivered despite standardised service delivery contracts developed by the government department funding the programmes. This leads to a consideration of “incomplete contracts” where service delivery outcomes are hard to measure or there is limited knowledge of the contracted agencies by the contracting government department.

Originality/value – The paper highlights a situation in which the recommendations of relational contracting theory can exacerbate the difficulties of quality assurance rather than minimise them. It then argues a need for workforce development in the government departments and the contracted agencies, to enable a nuanced monitoring of the programmes' service delivery and promotion of quality assurance processes.

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This paper presents the philosophies and practices of ‘Laura’, a young English community liaison worker and former religious studies teacher who has recently converted to Islam. Drawing on data generated from a qualitative and predominantly interview‐based research project that investigated issues of pedagogy and social justice in English schools, the focus is on Laura’s efforts to support Muslim girls through an Islamic discussion group. The paper highlights how Laura draws on Islamic beliefs to support the girls’ questioning of patriarchal interpretations of Islam within their Pakistani immigrant community. The paper also provides insight, however, into some of the tensions and limitations of Laura’s liberatory approach in terms of her positioning as white, western, and middle‐class. Against this backdrop, a self‐reflexive approach that is sensitive to how ‘ethnic‐specific sociability’ shapes understandings and enactments of gender is advocated. Such an approach is presented as central in considering how spaces of gender justice might be mobilised within community environments where unprecedented levels of multi‐cultural fragmentation and diversity have amplified tensions and conflict between and amongst racial and religious groups.

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As increased work demands and longer working hours become the reality for many employees, the concept of work-life balance has received increasing attention. This paper presents findings from an exploratory study of Australian middle managers, which investigated the impact of middle managers’ daily organizational experiences on their lives both in and beyond the workplace. We focus on respondents’ reports of the difficulty in achieving work-life balance, specifically, the organizational impediments to creating balance. Three particular areas where these impediments were apparent are: the impact of new technologies; limits to autonomy and control in the middle management role; and difficulties in taking advantage of flexibility initiatives in the workplace. As middle managers are caught in the middle between work and personal life, there is a need for organizations to support middle managers’ efforts to achieve work-life balance if the organization’s long-term goals are to be achieved.

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The dramatic rise in childhood obesity prevalence in the last two decades has prompted concern about the risk factors that may precipitate or maintain weight gain, or both, in early childhood. Media use has long been implicated in policy debates in Australia, particularly around limits to advertising. However the Australian research funding ecology and dominant paradigms in Australian communication and media studies have resulted in a lack of independent, nationally representative studies upon which to base advice. Australian researchers often can’t afford to collect the kind of data they would like in order to intervene productively as policy actors. As a test case for innovative ways round this dilemma, this paper mobilises secondary data analysis methodologies to explore potential influences of parenting on children’s media use and their weight status.

The research reported here uses data from the first three waves of the Longitudinal Study of Australian Children. Results from a path model suggest that children of mothers who were less consistent in the way in which they enforce their rules were more likely to adopt unhealthy lifestyle behaviours, such as sedentary behaviour and consuming unhealthy snacks. Of the lifestyle behaviours considered, time spent watching television or DVDs was the only predictor of child weight status in late childhood. These results suggest a clear pathway linking consistent parenting and other parental practices, children’s lifestyle behaviours and weight status.

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■ Human well-being has several key components: the basic material needs for a good life, freedom and choice, health, good social relations, and personal security. Well-being exists on a continuum with poverty, which has been defined as"pronounced deprivation in well-being."
■ How well-being and ill-being, or poverty, are expressed and experienced is context- and situation-dependent, reflecting local social and personal factors such as geography, ecology, age, gender,and culture.These concepts are complex and value-laden.
■ Ecosystems are essential for human well-being through their provisioning, regulating, cultural, and supporting services. Evidence in recent decades of escalating human impacts. on ecological systems worldwide raises concerns about the consequences of ecosystem changes for human well-being.
■ Human well-being can be enhanced through sustainable human interaction with ecosystems with the support of appropriate instruments, institutions, organizations, and technology. creation of these through participation and transparency may contribute to people's freedoms and choices and to increased economic, social,and ecological security.
■ Some believe that the problems from the depletion and degradation of ecological capital can be largely overcome by the substitution of physical and human capital. Others believe that there are more significant limits to such substitutions.The scope for substitutions varies by socioeconomic status.
■ We identify direct and indirect pathways between ecosystem change and human well-being,whether it be positive or negative.lndirect effects are characterized by more complex webs of causation, involving social, economic, and political threads. Threshold points exist beyond which rapid changes to human well-being can occur.
■ Indigent poorly resourced, and otherwise disadvantaged communities are generally the most vulnerable to adverse ecosystem change. Spirals, both positive and negative, can occur for any population, but the poor are more vulnerable.      
■ Functioning institutions are vital to enable equitable access to ecosystem services. lnstitutions sometimes fail or remain undeveloped because of powerful individuals or groups. Bodies that mediate the distribution of goods and services may also be appropriated for the benefit of powerful minorities.
■ For poor people, the greatest gains in well-being will occur through more equitable and secure access to ecosystem services. In the long run, the rich can contribute greatly to human well-being by reducing their substantial impacts on ecosystems and by facilitating greater access to ecosystem services by the poor.
■ We argue ecological security warrants recognition as a sixth freedom of equal weight with participative freedom, economic   facilities, social opportunities, transparency guarantees, and protective security.

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A thermomechanical processing (TMP) structure map is proposed that plots the critical strains required for dynamic recrystallization along with the grain sizes that result. These maps are useful in identifying the limits to grain refinement and designing hot working processes. They are readily constructed for well studied alloys such as plain carbon steel. In light of the recent interest in the hot working of magnesium, initial steps are taken here to construct a TMP structure map for the most common wrought magnesium alloy, AZ31. The completion of dynamic recrystallization is estimated using a geometrical approach and a twinning region is identified.

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Should computer programming be taught within schools of architecture?

Incorporating even low-level computer programming within architectural education curricula is a matter of debate but we have found it useful to do so for two reasons: as an introduction or at least a consolidation of the realm of descriptive geometry and in providing an environment for experimenting in morphological time-based change.

Mathematics and descriptive geometry formed a significant proportion of architectural education until the end of the 19th century. This proportion has declined in contemporary curricula, possibly at some cost for despite major advances in automated manufacture, Cartesian measurement is still the principal ‘language’ with which to describe building for construction purposes. When computer programming is used as a platform for instruction in logic and spatial representation, the waning interest in mathematics as a basis for spatial description can be readdressed using a left-field approach. Students gain insights into topology, Cartesian space and morphology through programmatic form finding, as opposed to through direct manipulation.

In this context, it matters to the architect-programmer how the program operates more than what it does. This paper describes an assignment where students are given a figurative conceptual space comprising the three Cartesian axes with a cube at its centre. Six Phileban solids mark the Cartesian axial limits to the space. Any point in this space represents a hybrid of one, two or three transformations from the central cube towards the various Phileban solids. Students are asked to predict the topological and morphological outcomes of the operations. Through programming, they become aware of morphogenesis and hybridisation. Here we articulate the hypothesis above and report on the outcome from a student group, whose work reveals wider learning opportunities for architecture students in computer programming than conventionally assumed.

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North Korea occupies a unique place in the thinking of US policymakers insofar as it represents both a direct, physical threat and also a reminder of the limits to American power. In numerous ways, North Korea is anathema to the US: it has fulsomely rejected America’s systems of political–economic organisation, its gradual rapproachment with South Korea threatens to undermine the rationale for America’s military presence in Northeast Asia, and its possession of nuclear weapons threatens the safety of the US and its allies. For these reasons, and despite its lowly standing in the international political system, North Korea continues to severely frustrate the superpower’s interests and thus represents an existential threat to the US.

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Introducing Evidence Based Health Policy: Problems and Possibilities, Section 1: What is the Problem?, 1: Competing Rationalities: Evidence based Health Policy, 2: Beyond Two Communities, Section 2: What does Evidence Mean?, 3: Evidence based Medicine - The Medical Profession and Health Policy, 4: Mind The Gap: Assessing the Quality of Evidence for Public Health Problems, 5: Health Policy and Normative Analysis: Ethics, Evidence and Politics, 6: What is New in Health Information? Evidence for Health Consumers and Policy Making, 7: From Evidence based Medicine to Evidence based Public Health, Section 3: Policy Case Studies, 8: The Viagra Affair: Evidence as the Terrain for Competing Partners, 9: Folate Fortification: A Case Study of Public Health Policy-Making in a Food Regulation Setting, 10: The Supply and Safety of Blood and Blood Products - Evidence, Risk and Policy, 11: The Development of Nurse Practitioner Policy, 12: Creating Healthy Public Policy for Oral Health: How was the Evidence Used?, 13: Regulation of Traditional Chinese Medicine in Victoria, 14: The Victorian Primary Health Care Reforms: A Case Study of Evidence-based Policy Making, 15: Evidence-based Practice in the Australian Drug Policy Community, 16: Challenging the Evidence - Women's Health Policy in Australia, 17: Evidence and Aboriginal Health Policy, 18: The Limits to Technical Rationality in the Health Inequalities Policy Process, 19: Evidence-based policy: A Technocratic Wish in a Political World, Section 4: Is the transfer of evidence into policy possible?, 20: The Community Model of Research Transfer, 21: Getting Research Transfer into Policy and Practice in Maternity Care, 22: Improving the Research and Policy Partnership: An Agenda for Research Transfer and Governance, 23: Framing and Taming 'Wicked' Problems

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I examine tea as cultural practice by exploring how it is implicated in the formation of individual subjectivities and national identity. While using the experience of learning and consuming tea lore as a foreigner as my explicit point of entry, I analyse how tea transmission practices are represented in Japanese films. My readings of these films are supported by a survey of the historical applications of tea as part of a project of national invention. Against tea's self-representation as purely cultural, I draw attention to this ideological silencing of its economic and political effects by claiming that institutionalised tea pedagogy has been a major player in a nationally distinctive discourse of transience. My thesis argues that autoethnography can be used to bring into view the ideological foundations of various social practices organised around tea sites and texts. Once ideology is visible autoethnography may mediate the effects of dominant discourses by making a modest form of private resistance possible. As a performance of critical and effective history, I explore the limits of consciously resisting institutionalised power by reflecting on how discourses of tea and social theory intersect in my autoethnographic account of tea experiences. I begin by locating my subjectivity in tea. After outlining how tea is useful to me in psychological, domestic and professional contexts, I survey autoethnographic writing and critical forms of textual analysis. Given that traditions of textual analysis set limits to what can be comprehended, I note that considerations of the role of subjectivity are sometimes absent from several modes of textual analysis. I contend that more delicate forms of textual analysis are possible when multiple forms of subjectivity are explicitly addressed. Subjectivity is emphasised as I move between performances of being a cultural insider of tea subculture and an ethnic and linguistic outsider of daily life in Japan when I examine the connections linking tea anecdotes, film narratives, individual tales and national myths. From the position of tea culture insider and consumer of social theory I examine the relationship between national culture and individual subjectivity. I identify internal contradictions in tea transmission practices and consider how tea pedagogy and its cult of personality are addressed in tea films. The thesis concludes by considering the utility of identities in a global economy and comment on recent theories addressing the ethical self and social practices. It is on this basis that I claim the readings advanced in the earlier chapters map the pleasures and limits of employing autoethnography as a form of private resistance against the dominant discourses of tea, nation, and leisure.