Israel Tuval, Dan Givoli and Ehud Behar
The purpose of this paper is to propose a computational model for thin layers, for problems of linear time-dependent heat conduction. The thin layer is replaced by a…
Abstract
Purpose
The purpose of this paper is to propose a computational model for thin layers, for problems of linear time-dependent heat conduction. The thin layer is replaced by a zero-thickness interface. The advantage of the new model is that it saves the need to construct and use a fine mesh inside the layer and in regions adjacent to it, and thus leads to a reduction in the computational effort associated with implicit or explicit finite element schemes.
Design/methodology/approach
Special asymptotic models have been proposed for linear heat transfer and linear elasticity, to handle thin layers. In these models the thin layer is replaced by an interface with zero thickness, and specific jump conditions are imposed on this interface in order to represent the special effect of the layer. One such asymptotic interface model is the first-order Bövik-Benveniste model. In a paper by Sussmann et al., this model was incorporated in a FE formulation for linear steady-state heat conduction problems, and was shown to yield an accurate and efficient computational scheme. Here, this work is extended to the time-dependent case.
Findings
As shown here, and demonstrated by numerical examples, the new model offers a cost-effective way of handling thin layers in linear time-dependent heat conduction problems. The hybrid asymptotic-FE scheme can be used with either implicit or explicit time stepping. Since the formulation can easily be symmetrized by one of several techniques, the lack of self-adjointness of the original formulation does not hinder an accurate and efficient solution.
Originality/value
Most of the literature on asymptotic models for thin layers, replacing the layer by an interface, is analytic in nature. The proposed model is presented in a computational context, fitting naturally into a finite element framework, with both implicit and explicit time stepping, while saving the need for expensive mesh construction inside the layer and in its vicinity.
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Merav Migdal-Picker and Tammar B. Zilber
The authors set out to study institutional work under complexity building on the struggle for legitimacy of the Lesbian, Gay, Bisexual, and Transgender (LGBT) community in Israel…
Abstract
The authors set out to study institutional work under complexity building on the struggle for legitimacy of the Lesbian, Gay, Bisexual, and Transgender (LGBT) community in Israel as their case study. The authors took a discursive approach and were interested in what actors claim they do. The findings suggest that actors manipulate the intentions and outcomes of their acts, thereby claiming for actorhood or negating it. These differential constructions are not random but echo the norms of the discursive spaces within which they are presented and interact with other actors’ work. Overall, the authors argue that actorhood is not a pre-condition for institutional work, nor is it its outcome, but rather an integral part thereof.
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Osnat Hazan and Tammar B. Zilber
The authors explore self-identity construction as a mechanism of institutionalization at the individual level. Building on in-depth analysis of life stories of yoga…
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The authors explore self-identity construction as a mechanism of institutionalization at the individual level. Building on in-depth analysis of life stories of yoga practitioners who are at different stages of practice, the authors found that as yoga practitioners are more exposed to the yogic institution, yogic meanings gradually infuse their general worldview and self-concept. The authors follow the line of research which focuses on professional identity construction as institutional work, yet, opening the “black box,” the authors argue that institutional meanings take root at the individual level beyond the institutional context and beneath the explicit level of identity.
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Boas Shamir and Galit Eilam-Shamir
In this paper, we first develop the concepts of authentic leaders, authentic leadership, and authentic leader development. We suggest a definition of authentic leaders, which is…
Abstract
In this paper, we first develop the concepts of authentic leaders, authentic leadership, and authentic leader development. We suggest a definition of authentic leaders, which is based on the leader’s self-concept: his or her self-knowledge, self-concept clarity, self-concordance, and person-role merger, and on the extent to which the leader’s self-concept is expressed in his or her behavior. Following, we offer a life-story approach to the development of authentic leaders. We argue that authentic leadership rests heavily on the self-relevant meanings the leader attaches to his or her life experiences, and these meanings are captured in the leader’s life-story. We suggest that self-knowledge, self-concept clarity, and person-role merger are derived from the life-story. Therefore, the construction of a life-story is a major element in the development of authentic leaders. We further argue that the life-story provides followers with a major source of information on which to base their judgments about the leader’s authenticity. We conclude by drawing some practical implications from this approach and presenting suggestions for further research.
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Ruth Mansur, Smadar Tuval, Judith Barak, Bobbie Turniansky, Ariela Gidron and Talia Weinberger
Purpose – This chapter examines the complexity and contextuality of storying curriculum making in a collaborative landscape of teaching and research, as it moves from telling…
Abstract
Purpose – This chapter examines the complexity and contextuality of storying curriculum making in a collaborative landscape of teaching and research, as it moves from telling stories of collaborative curriculum making toward exploring curriculum within a collaborative landscape. This work is based on our lived experience of 9 years of collaborating as a team of teacher educators.
Methodology and Findings – Three stories are at the focus of our study – the unfolding story of the collaborative writing of this chapter and two stories that relate to our curriculum planning in the more traditional sense, illustrating almost opposing sides of a collaboration continuum: A story of creating and preserving contrasted with a story of creating and changing. Together, these examples present a picture of the way we experience the making of curriculum in a collaborative landscape: building and teaching a program of learning for our students in tandem with team learning of our own.
Value of paper – The collaborative landscape revealed in this chapter, with its tensions and opportunities, serves as basis for discussing the issue of territory as an overarching concept for the redefinition of questions regarding ownership, authorship and identities. These issues become crucial in a collaborative situation, in which one has to compromise on definition of clear cut working space.
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Racism occurs in many ways and varies across countries, evolving and adapting to sociocultural history, as well as contemporary economic, political and technological changes. This…
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Racism occurs in many ways and varies across countries, evolving and adapting to sociocultural history, as well as contemporary economic, political and technological changes. This chapter discusses the multilevel dimensions of racism and its diverse manifestations across multiracial societies. It examines how different aspects of racism are mediated interpersonally, and embedded in institutions, social structures and processes, that produce and sustain racial inequities in power, resources and lived experiences. Furthermore, this chapter explores the direct and indirect ways racism is expressed in online and offline platforms and details its impacts on various groups based on their intersecting social and cultural identities. Targets of racism are those who primarily bear the adverse effects. However, racism also affects its perpetrators in many ways, including by limiting their social relations and attachments, and by imposing social and economic costs. This chapter thus analyses the many aspects of racism both from targets and perpetrators' perspectives.
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Judith Barak is the former head of the ACE program, is currently head of the graduate school of education at Kaye Academic College of Education in Beer Sheva, Israel. Her work…
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Judith Barak is the former head of the ACE program, is currently head of the graduate school of education at Kaye Academic College of Education in Beer Sheva, Israel. Her work focuses on educational innovations and creating collaborative relations. Her research aims at a deeper understanding of learning environments and their interrelations to professional development processes. She is involved mostly in collaborative self-study stemming from her lived experiences. Recent publications include “From the inside out: Learning to understand and appreciate multiple voices through telling identities” (2009), “‘Without stones there is no arch’: A study of professional development of teacher educators as a team” (2010), and “Conversations in a collaborative space: From stories to concepts to dimensions” (2010).
Mary Lynn Hamilton and Stefinee Pinnegar
In this chapter, we present Self-Study of Teaching and Teacher Education Practices (S-STEP) as a research methodology that can be used pedagogically to explore the practices of…
Abstract
In this chapter, we present Self-Study of Teaching and Teacher Education Practices (S-STEP) as a research methodology that can be used pedagogically to explore the practices of teacher educators for their professional development. It can be seen as a pedagogic practice that enlists reflection to enable teacher educators to explore and explicate practice and make explicit what they know about teaching and teacher education in order to improve practice and contribute to larger conversations in research on teaching and teacher education. After providing a succinct interpretation of the origins of S-STEP work, we suggest that historical context, along with the understanding of the theoretical underpinnings, makes it viable as a research methodology and a potentially valuable pedagogy for teacher education research. S-STEP is an intimate research methodology (Hamilton, 1995) in which the person conducting the research is both the focus and the author of the research and provides an insider’s perspective into practice and experience.
We provide examples to demonstrate how others and we take up S-STEP as pedagogy for teacher educator professional development that allows us to grapple with what we know either explicitly or tacitly from and about our practice. International S-STEP research has the power to inform the professional development of teacher educators across these boundaries, because it attends carefully to the particular of the practice and context from which it emerged.
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This paper aims to explore if and how changes in social representations of conflict are designed and constructed in the formal political discourse.
Abstract
Purpose
This paper aims to explore if and how changes in social representations of conflict are designed and constructed in the formal political discourse.
Design/methodology/approach
Taking a psycho‐sociological approach and by relying on discourse analysis, it explores the discursive patterns used by the political leadership in order to legitimize either war or peace actions. Through the analysis of speeches that were given by Israeli prime ministers in the Knesset and in the context of warfare or peace processes, the paper traces changes in the historical narratives that frame Israel's cluster of societal beliefs in regards to the conflict, and further explores how these are being re‐narrated in light of the process of transition to peace.
Findings
The paper argues that both warfare and peace processes, representing the extreme options available in conflict, require broad public recruitment and immense rhetorical efforts on behalf of the political leadership to reason and legitimatize actions through the formal political discourse. The findings highlight the ways through which the political leadership in Israel justifies its actions and attempts to enlist public support as a prism to trace how societal beliefs have been narrated for the purpose of justifying warfare, and how the same beliefs are re‐narrated to justify conflict resolution.
Originality/value
The paper strives to shed light on the role played by the interplay between political discourse and societal beliefs in the context of transition to peace, and thus advances understandings of the linkage between internal processes and external circumstances, as mitigated by political discourse, in the context of conflict and conflict resolution.