refined theory
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2021 ◽  
Author(s):  
◽  
Elizabeth Dale Pishief

<p>This thesis examines a problem in current heritage practice, namely, the statutory management of archaeological sites separately from other heritage places with the consequent loss of many sites of importance to Māori. It explores places and the different meanings and practices of heritage constructed around them by archaeologists and Māori in Aotearoa New Zealand where such questions have not been critically examined in great depth. The study responds to this gap in the literature by setting out to develop a theory of heritage practice that enables the effective translation of peoples' heritage aspirations into a workable model of heritage management in place of the current framework. The research has used an interdisciplinary theoretical framework developed from the literature of heritage studies and related fields, which builds on Laurajane Smith's work on archaeology and the authorised heritage discourse, but also includes writing on governmentality, phenomenology, kinaesthesia, agency, and material culture. The research design employed a qualitative, interpretivist methodology. Discourse analysis of the evidence gathered from secondary sources, including legislation and policy; and an ethnography of current professional practice in the form of interviews and participant observation, all produced rich findings about heritage, place and practice that are fundamental to understanding the complex issues examined in this study. The main finding that emerges from the research is a refined theory of heritage. I argue that heritage is comprised of three tangible elements: person, performance and place, which create what Māori respondents refer to as the 'Connect', a contemporary Māori heritage practice related to customary concepts. Heritage is the Connect. The research has led to the formulation of a more appropriate trans-cultural, bi-national governance model of heritage. As one of the first sustained pieces of critical analysis of heritage management in New Zealand, this thesis thereby makes a significant academic contribution to critical heritage studies and the history, theory and practice of heritage management in this, and other post-settler nations.</p>


2021 ◽  
Author(s):  
◽  
Elizabeth Dale Pishief

<p>This thesis examines a problem in current heritage practice, namely, the statutory management of archaeological sites separately from other heritage places with the consequent loss of many sites of importance to Māori. It explores places and the different meanings and practices of heritage constructed around them by archaeologists and Māori in Aotearoa New Zealand where such questions have not been critically examined in great depth. The study responds to this gap in the literature by setting out to develop a theory of heritage practice that enables the effective translation of peoples' heritage aspirations into a workable model of heritage management in place of the current framework. The research has used an interdisciplinary theoretical framework developed from the literature of heritage studies and related fields, which builds on Laurajane Smith's work on archaeology and the authorised heritage discourse, but also includes writing on governmentality, phenomenology, kinaesthesia, agency, and material culture. The research design employed a qualitative, interpretivist methodology. Discourse analysis of the evidence gathered from secondary sources, including legislation and policy; and an ethnography of current professional practice in the form of interviews and participant observation, all produced rich findings about heritage, place and practice that are fundamental to understanding the complex issues examined in this study. The main finding that emerges from the research is a refined theory of heritage. I argue that heritage is comprised of three tangible elements: person, performance and place, which create what Māori respondents refer to as the 'Connect', a contemporary Māori heritage practice related to customary concepts. Heritage is the Connect. The research has led to the formulation of a more appropriate trans-cultural, bi-national governance model of heritage. As one of the first sustained pieces of critical analysis of heritage management in New Zealand, this thesis thereby makes a significant academic contribution to critical heritage studies and the history, theory and practice of heritage management in this, and other post-settler nations.</p>


Mathematics ◽  
2021 ◽  
Vol 9 (12) ◽  
pp. 1422
Author(s):  
Youssef Boutahar ◽  
Nadhir Lebaal ◽  
David Bassir

A refined beam theory that takes the thickness-stretching into account is presented in this study for the bending vibratory behavior analysis of thick functionally graded (FG) beams. In this theory, the number of unknowns is reduced to four instead of five in the other approaches. Transverse displacement is expressed through a hyperbolic function and subdivided into bending, shear, and thickness-stretching components. The number of unknowns is reduced, which involves a decrease in the number of the governing equation. The boundary conditions at the top and bottom FG beam faces are satisfied without any shear correction factor. According to a distribution law, effective characteristics of FG beam material change continuously in the thickness direction depending on the constituent’s volume proportion. Equations of motion are obtained from Hamilton’s principle and are solved by assuming the Navier’s solution type, for the case of a supported FG beam that is transversely loaded. The numerical results obtained are exposed and analyzed in detail to verify the validity of the current theory and prove the influence of the material composition, geometry, and shear deformation on the vibratory responses of FG beams, showing the impact of normal deformation on these responses which is neglected in most of the beam theories. The obtained results are compared with those predicted by other beam theories. It can be concluded that the present theory is not only accurate but also simple in predicting the bending and free vibration responses of FG beams.


2021 ◽  
Vol 55 (1 (254)) ◽  
pp. 64-71
Author(s):  
Seyran P. Stepanyan

In this paper, based on the refined theory of orthotropic plates of variable thickness, a system of differential equations is obtained for solving the problem of bending of an elastically restrained beam with an intermediate condition. The beam thickness is constant and is subject to a uniformly distributed load. The effects of transverse shear are also taken into account. Passing to dimensionless quantities, an analytical closed solution is obtained. The question of the influence of changing the place of application of the intermediate condition on the solution is discussed. Depending on the location of the hinge bearing, the question of optimality was posed and resolved according to the principle of minimum maximum deflection. The results are presented in both tabular and graphical form. Based on the results obtained, appropriate conclusions are drawn.


Author(s):  
Tracy Moniz ◽  
Maryam Golafshani ◽  
Carolyn M. Gaspar ◽  
Nancy E. Adams ◽  
Paul Haidet ◽  
...  

Abstract Introduction The arts and humanities have transformative potential for medical education. Realizing this potential requires an understanding of what arts and humanities teaching is and what it aims to do. A 2016 review of exclusively quantitative studies mapped three discursive positions (art as intrinsic to, additive to or curative for medicine) and three epistemic functions (art for mastering skills, perspective taking, and personal growth and activism). A more inclusive sample might offer new insights into the position and function of arts and humanities teaching in medical education. Methods Informed by this 2016 framework, we conducted discursive and conceptual analyses of 769 citations from a database created in a recent scoping review. We also analyzed the 15 stakeholder interviews from this review for recurring themes. These three analyses were iteratively compared and combined to produce a model representing the complex relationship among discursive functions and learning domains. Results The literature largely positioned arts and humanities as additive to medicine and focused on the functions of mastering skills and perspective taking. Stakeholders emphasized the intrinsic value of arts and humanities and advocated their utility for social critique and change. We offer a refined theory of practice—the Prism Model of four functions (mastering skills, perspective taking, personal insight and social advocacy)—to support more strategic use of arts and humanities in medical education across all learning domains. Discussion The Prism Model encourages greater pedagogical flexibility and critical reflection in arts and humanities teaching, offering a foundation for achieving its transformative potential.


2021 ◽  
Author(s):  
Ahmed Hassan Ahmed Hassan ◽  
Naci Kurgan ◽  
Nihat Can

Abstract This article presents the derivation of the elastic buckling equations and boundary conditions of shear-deformable plates in the frame of the extended Kantorovich method (EKM). Surveying the literature shows that those stability equations are often obtained using a wrong derivation by confusing them with the linear equilibrium condition. This work aims at providing the correct derivation that is built on the stability of the equilibrium condition. Buckling equations are derived for three different plate theories, namely, the first-order shear deformation plate theory (FSDT), the refined-FSDT, and the refined plate theory (RPT). This article is the first to implement the EKM based on a refined theory. Also, it is the first time to implement the refined-FSDT in buckling analysis. For the generic FGM plates, buckling equations derived based on the FSDT and refined-FSDT are both found to be simple and contain only the lateral displacements/rotations variations. On the other hand, those of the RPT, have coupled lateral and in-plane displacement variations, even if the physical neutral plate is taken as the reference plane. The considered plate is rectangular and under general in-plane loads. The properties are of the plate continuously varying through its thickness which is assumed to change smoothly with a separable function in the two in-plane dimensions. The von Kármán nonlinearity is considered. The stability equations are derived according to the Trefftz criterion, using the variational calculus. The solution methods of the obtained equations are out of the scope of this article.


2021 ◽  
Vol 10 (1) ◽  
Author(s):  
Justin Avery Aunger ◽  
Ross Millar ◽  
Joanne Greenhalgh ◽  
Russell Mannion ◽  
Anne-Marie Rafferty ◽  
...  

Abstract Background Inter-organisational collaboration is increasingly prominent within contemporary healthcare systems. A range of collaboration types such as alliances, networks, and mergers have been proposed as a means to turnaround organisations, by reducing duplication of effort, enabling resource sharing, and promoting innovations. However, in practice, due to the complexity of the process, such efforts are often rife with difficulty. Notable contributions have sought to make sense of this area; however, further understanding is needed in order to gain a better understanding of why some inter-organisational collaborations work when others do not, to be able to more effectively implement collaborations in the future. Methods Realist review methodology was used with the intention of formulating context-mechanism-outcome configurations (CMOCs) to explain how inter-organisational collaborations work and why, combining systematic and purposive literature search techniques. The systematic review encompassed searches for reviews, commentaries, opinion pieces, and case studies on HMIC, MEDLINE, PsycINFO, and Social Policy and Practice databases, and further searches were conducted using Google Scholar. Data were extracted from included studies according to relevance to the realist review. Results Fifty-three papers were included, informing the development of programme theories of how, why, and when inter-organisational collaborations in healthcare work. Formulation of our programme theories incorporated the concepts of partnership synergy and collaborative inertia and found that it was essential to consider mechanisms underlying partnership functioning, such as building trust and faith in the collaboration to maximise synergy and thus collaborative performance. More integrative or mandated collaboration may lean more heavily on contract to drive collaborative behaviour. Conclusion As the first realist review of inter-organisational collaborations in healthcare as an intervention for improvement, this review provides actionable evidence for policymakers and implementers, enhancing understanding of mechanisms underlying the functioning and performing of inter-organisational collaborations, as well as how to configure the context to aid success. Next steps in this research will test the results against further case studies and primary data to produce a further refined theory. Systematic review registration PROSPERO CRD42019149009


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