988 resultados para MEAN-SHIFT


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This paper presents ‘narrative’ as a theoretically informed qualitative perspective to explore and substantiate such abstract concept as ‘museum impact’. It argues that the impact of museums is best understood via the meanings visitors make and negotiate in the long-term. This provides critical insights into what a museum visit means and how its impact is negotiated within time and space. I lay out the theoretical rationale and methodological approach for the research project underpinning this paper while future publications will provide empirical findings and theoretical conclusions.

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This paper proposes an innovative optimized parametric method for construction of prediction intervals (PIs) for uncertainty quantification. The mean-variance estimation (MVE) method employs two separate neural network (NN) models to estimate the mean and variance of targets. A new training method is developed in this study that adjusts parameters of NN models through minimization of a PI-based cost functions. A simulated annealing method is applied for minimization of the nonlinear non-differentiable cost function. The performance of the proposed method for PI construction is examined using monthly data sets taken from a wind farm in Australia. PIs for the wind farm power generation are constructed with five confidence levels between 50% and 90%. Demonstrated results indicate that valid PIs constructed using the optimized MVE method have a quality much better than the traditional MVE-based PIs.

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Cultural heritage should not be seen merely as a technical matter or from a narrow visitor management point of view but rather as cultural practice—a form of cultural politics dominated by ruling regimes and social groups in which decisions are made about the future of and access to scarce resources. Several scholars have sought to push this approach further by arguing that heritage studies should take on the protection of human rights as a core consideration in the processes of identifying, inscribing, conserving and interpreting cultural heritage. This paper builds on these previous works to explore what the shift to a rights-based management approach in the World Heritage system might mean for various stakeholders in the heritage protection enterprise as they learn to meet this challenge and to find ways to support people’s right to access, enjoy and maintain cultural heritage. Reaffirming the need to maintain a strong relationship between theory and praxis, the paper draws into the discussion heritage practitioners, decision makers in governments and government agencies, scholars and educators. Of these, the principal emphasis in this paper is on educators who are seen to have a fundamentally important role in developing a critical understanding of the cultural heritage concept, how heritage is created, used and misused and how conservation approaches and programs sit within the broader context of community attitudes and aspirations and governmental responsibilities. A distinction is made between teachers in universities and trainers offering short courses more focused on specific employer needs. The paper focuses on World Heritage but refers to both tangible and intangible aspects. It shows how current moves to establish a rights-based approach to the management of World Heritage sites connects with moves elsewhere in global governance, most notably in the United Nations Permanent Forum on Indigenous Issues and the United Nations Human Rights Commission.

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Informed by social exchange theory (SET) this study examines the role of trust in strategic alliances. Interviews were conducted with 17 participants who were strategic alliance managers in their organization. The study finds that trust is important to strategic alliance managers, and without it alliance managers would find it difficult to keep their alliance going. Trust is built over time, and based on the past experiences that the alliance manager has with their partner. The study found that prior networks, timely and appropriate communication and information exchange, fairness preservation and inter-firm adaptation were important in developing trust in the strategic alliance.

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In this paper, I analyse the post-colonial and post-modern experiences in the light of questions and issues concerning the spatial identities or locations that the diasporans carry. By politics of spatial location, I mean a migrant's positions within power hierarchies created through geographic, historical, political, economic and other socially stratifying factors in the new homeland. This paper is mainly concerned with the theoretical ways in which a shift is accelerated in Australia's literary landscape by the South Asian diasporic writers who produce and cover the dynamics of politics of location in different contexts. It also focuses on South Asian diaspora's widely agreed ‘ability to recreate their cultures in diverse locations’. I conclude that these stories are not just of spaces but also of a promising future for the South Asian diaspora in Australia.

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Background:
Rapid intradialytic potassium shifts during haemodialysis have been associated with increased mortality and morbidity. Standardising dialysate potassium to 2 mmol/l may decrease the potassium shift.

Objective:
To examine the effect of standardising dialysate potassium to 2 mmol/l for all chronic dialysis treatments.
Design:
Pre- and post-intervention comparison of monthly serum potassium.

Participants
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Ninety-seven individuals, of whom 56 patients could be matched across both data collection periods.

Methods
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Serum potassium data were categorised based on a target range 3.5–6.0 mmol/l. Overall pre- and postintervention mean scores were compared using a paired samples t-test. Data for patients routinely prescribed dialysate potassium 1 mmol/l pre-intervention (n ¼ 6) underwent paired samples t-test to compare their mean serum potassium pre and post-intervention.

Results
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There was no statistically significant change in serum potassium post- intervention. The majority of patients remained within the target range, including the subset of patients who had a history of high serum potassium during the pre- intervention period.

Conclusions
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A standard potassium dialysate of 2 mmol/l may reduce intradialytic serum potassium shifts and may assist in standardising safer work practices.

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Most teacher education programs have online applications. Increasingly teacher education programs are expanding their distance education applications with mobile learning, or m-learning. Although related to online learning, m-learning focuses on the learning opportunities offered by mobile technologies. Mobile learning is a big step towards providing flexible teacher education; it has brought about a new forum for learning, decreased limitations of learning location, and provided learners with choices about how and when they access learning materials. Universities are finding themselves grappling with how best to utilize mobile technologies for learning, while staying within their educational missions and resources. In this paper the mobile devices used in higher education and the current status of mobile technologies as learning tools at universities are described. The background of approaches and methods which are currently in use are also discussed, plus universities and teacher readiness for this transformation are also reviewed. Affordances and constraints are considered.