892 resultados para Critical theory


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The purpose of this study was to determine the knowledge and use of critical thinking teaching strategies by full-time and part-time faculty in Associate Degree Nursing (ADN) programs. Sander's CTI (1992) instrument was adapted for this study and pilottested prior to the general administration to ADN faculty in Southeast Florida. This modified instrument, now termed the Burroughs Teaching Strategy Inventory (BTSI), returned reliability estimates (Cronbach alphas of .71, .74, and .82 for the three constructs) comparable to the original instrument. The BTSI was administered to 113 full-time and part-time nursing faculty in three community college nursing programs. The response rate was 92% for full-time faculty (n = 58) and 61 % for part-time faculty (n = 55). The majority of participants supported a combined definition of critical thinking in nursing which represented a composite of thinking skills that included reflective thinking, assessing alternative viewpoints, and the use of problem-solving. Full-time and part-time faculty used different teaching strategies. Fulltime faculty most often used multiple-choice exams and lecture while part-time faculty most frequently used discussion within their classes. One possible explanation for specific strategy choices and differences might be that full-time faculty taught predominately in theory classes where certain strategies would be more appropriate and part-time faculty taught predominately clinical classes. Both faculty types selected written nursing care plans as the second most effective critical thinking strategy. Faculty identified several strategies as being effective in teaching critical thinking. These strategies included discussion, case studies, higher order questioning, and concept analysis. These however, were not always the strategies that were used in either the classroom or clinical setting. Based on this study, the author recommends that if the profession continues to stress critical thinking as a vital component of practice, nursing faculty should receive education in appropriate critical teaching strategies. Both in-service seminars and workshops could be used to further the knowledge and use of critical thinking strategies by faculty. Qualitative research should be done to determine why nursing faculty use self-selected teaching strategies.

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In recent years, a surprising new phenomenon has emerged in which globally-distributed online communities collaborate to create useful and sophisticated computer software. These open source software groups are comprised of generally unaffiliated individuals and organizations who work in a seemingly chaotic fashion and who participate on a voluntary basis without direct financial incentive. The purpose of this research is to investigate the relationship between the social network structure of these intriguing groups and their level of output and activity, where social network structure is defined as 1) closure or connectedness within the group, 2) bridging ties which extend outside of the group, and 3) leader centrality within the group. Based on well-tested theories of social capital and centrality in teams, propositions were formulated which suggest that social network structures associated with successful open source software project communities will exhibit high levels of bridging and moderate levels of closure and leader centrality. The research setting was the SourceForge hosting organization and a study population of 143 project communities was identified. Independent variables included measures of closure and leader centrality defined over conversational ties, along with measures of bridging defined over membership ties. Dependent variables included source code commits and software releases for community output, and software downloads and project site page views for community activity. A cross-sectional study design was used and archival data were extracted and aggregated for the two-year period following the first release of project software. The resulting compiled variables were analyzed using multiple linear and quadratic regressions, controlling for group size and conversational volume. Contrary to theory-based expectations, the surprising results showed that successful project groups exhibited low levels of closure and that the levels of bridging and leader centrality were not important factors of success. These findings suggest that the creation and use of open source software may represent a fundamentally new socio-technical development process which disrupts the team paradigm and which triggers the need for building new theories of collaborative development. These new theories could point towards the broader application of open source methods for the creation of knowledge-based products other than software.

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Inherent in the task of theorising is a responsibility for ongoing critical reflection of the ideas presented (Steele, 2010). To that end, this article responds to the invitation extended by McCold and Wachtel to examine the conceptual theory of restorative justice they first presented in 2003 and which continues to be promoted globally. One particular aspect of their theory, the Social Discipline Window, is examined. Drawing on a qualitative, critical case study conducted in schools in Ontario, Canada, the article illustrates: (a) how unexamined theory can be problematic and promote practice that counters the principles of restorative justice; and (b) how people's lives can be impacted by power dynamics inherent in the theory presented (Woolford, 2009). In response, a revised Relationship Window is presented along with examples of how it can affect practice that is more consistently aligned with the philosophical foundations of restorative justice.

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We present a theoretical description of the generation of ultra-short, high-energy pulses in two laser cavities driven by periodic spectral filtering or dispersion management. Critical in driving the intra-cavity dynamics is the nontrivial phase profiles generated and their periodic modification from either spectral filtering or dispersion management. For laser cavities with a spectral filter, the theory gives a simple geometrical description of the intra-cavity dynamics and provides a simple and efficient method for optimizing the laser cavity performance. In the dispersion managed cavity, analysis shows the generated self-similar behavior to be governed by the porous media equation with a rapidly-varying, mean-zero diffusion coefficient whose solution is the well-known Barenblatt similarity solution with parabolic profile. © 2010 Copyright SPIE - The International Society for Optical Engineering.

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French Feminism has little to do with feminism in France. While in the U.S. this now canonical body of work designates almost exclusively the work of three theorists—Hélène Cixous, Luce Irigaray, and Julia Kristeva—in France, these same thinkers are actually associated with the rejection of feminism. If some scholars have on this basis passionately denounced French Feminism as an American invention, there exists to date no comprehensive analysis of that invention or of its effects. Why did theorists who were at best marginal to feminist thought and political practice in France galvanize feminist scholars working in the United States? Why does French Feminism provoke such an intense affective response in France to this date? Drawing on the fields of feminist and queer studies, literary studies, and history, “Inventing ‘French Feminism:’ A Critical History” offers a transnational account of the emergence and impact of one of U.S. academic feminism’s most influential bodies of work. The first half of the dissertation argues that, although French Feminism has now been dismissed for being biologically essentialist and falsely universal, feminists working in the U.S. academy of the 1980s, particularly feminist literary critics and postcolonial feminist critics, deployed the work of Cixous, Irigaray, and Kristeva to displace what they perceived as U.S. feminist literary criticism’s essentialist reliance on the biological sex of the author and to challenge U.S. academic feminism’s inattention to racial differences between women. French Feminism thus found traction among feminist scholars to the extent that it was perceived as addressing some of U.S. feminism’s most pressing political issues. The second half of the dissertation traces French feminist scholars’ vehement rejection of French Feminism to an affectively charged split in the French women’s liberation movement of the 1970s and shows that this split has resulted in an entrenched opposition between sexual difference and materialist feminism, an opposition that continues to structure French feminist debates to this day. “Inventing ‘French Feminism:’ A Critical History” ends by arguing that in so far as the U.S. invention of French Feminism has contributed to the emergence of U.S. queer theory, it has also impeded its uptake in France. Taken as a whole, this dissertation thus implicitly argues that the transnational circulation of ideas is simultaneously generative and disabling.

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This paper examines the remarkable and unexplored correspondence between games (and board games in particular) and what is commonly understood as theory in the social sciences. It argues that games exhibit many if not most of the attributes of theory, but that theory is missing some of the features of games. As such, game provide a way of rethinking what we mean by theory and theorizing. Specifically, games and their relationship with the ‘real’ world, provide a way of thinking about theory and theorizing that is consistent with recent calls to frame social inquiry around the concept of phrónēsis.

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In my thesis I argue for the use of system designs that: a) open access to a variety of users and allow for collaboration and idea exchange, while at the same time, b) are designed to motivate and engage users. To exemplify my proposed systems design, I created an interactive and open digital history project focused on Romanian culture and identity during Communism, from 1947, when the Communist Party took power by forcing the King to abdicate, until the revolution in 1989, which marked the end of Communism in Romania (Gilberg, 1990, Boia, 2014). In my project, I present the possibility to recreate Habermas’ notion of public sphere and “the unforced force of the better argument” (Habermas, 1989) and Dewey’s (2004) understanding of democracy as a mode of associated living imbued of the spirit of inquiry within contemporary digital history projects. Second, I outline system designs that motivate and engage users, by satisfying the basic psychological needs outlined in Ryan and Deci’s (2000) self-determination theory: autonomy, competence, and relatedness. Two more concepts are included to complete the proposed digital history project design: presence (Ryan, Rigby, & Przybylski, 2006) and learner hero (Rigby & Przybylski, 2009).

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Critical perspectives on theory play an important and valued role in disciplines across the academy. Feminist perspectives might be expected to be at or near the forefront of critical engagement with consumer behaviour theory, especially given the importance of gender in consumer research. Following a brief upsurge during the 1990s, critical feminist voices have been muted of late. This paper explores some reasons for this. It begins with a brief overview of research on gender and consumer behaviour and how insights from feminist theories and feminist activism began to alter our understanding of gendered consumption. It then discusses how postmodern and postfeminist perspectives have diluted feminism as a critique of gendered consumption. Finally, it argues that a return to materialist feminism would open up possibilities for new and more critical analyses of gendered consumption.

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This book provides the reader with a critical insight into the history and theory of copyright within contemporary legal and cultural discourse. It exposes as myth the orthodox history of the development of copyright law in eighteenth-century Britain and explores the way in which that myth became entrenched throughout the nineteenth and early twentieth centuries. To this historical analysis are added two theoretical approaches to copyright not otherwise found in mainstream contemporary texts. Rethinking Copyright introduces the reader to copyright through the prism of the public domain before considering how best to locate copyright within the parameters of traditional property discourse. Underpinning these various historical and theoretical strands, the book explores the constitutive power of legal writing and the place of rhetoric in framing and determining contemporary copyright policy and discourse.

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This article is an introductory note to The thematic section in this issue of Education Inquiry has its background in the need for research interpreting literacy from a critical perspective. Teaching literacy is not solely about technical reading skills but is also about understanding and the making of meaning. From that point of view, teaching must also consider the use of language, the context within which language is used, and issues of power. The thematic section includes five articles about critical literacy in Swedish education. The contributions were developed after a workshop conducted by Professor Hilary Janks, University of the Witwatersrand, Johannesburg. She introduces the framework of a critical literacy theory in the first article of the issue. Further, the contributions of Swedish scholars are united in their interest in applying a mode of critical literacy designed by Janks to different practices, sites and speech-events, for example policy documents, home reading, teaching and learning practices. The articles offer a wide perspective of critical literacy in education and further understanding of the complex processes in teaching.

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As a teacher educator I consider myself an advocate for research-informed education, and strongly believe that it starts with one’s own critical self-reflection and analysis of one’s own teaching practice. Critical incident analysis is a pedagogical theory developed by Tripp (1993), whose analytical approaches allow reflection on teaching situations – ‘the critical incident’ – so that teachers can develop their professional judgments and practices. This article examines the concept of critical incident analysis through a teaching situation, with the aim of improving the teaching practice of students on teacher education programmes. I conclude that although critical incident analysis is a useful tool in navigating teaching practices, often challenges need to be addressed at much broader levels than the teaching context itself.

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In this thesis the critical dynamics of several magnetoelectric compounds at their phase transition were examined. Mostly measurements of the dielectric properties in the frequency range of below 1 Hz up to 5 GHz were employed to evaluate the critical exponents for both magnetic field and temperature-dependent measurements. Most of the materials that are part of this work show anomalous behavior, especially at very low temperatures where quantum fluctuations are of the order of or even dominate those induced thermally. This anomalous behavior manifests in different forms. In Dy2Ti2O7 we demonstrate the existence of electric dipoles on magnetic monopoles. Here the dynamics at the critical endpoint located at 0.36K and in a magnetic field of 1T parallel to the [111] direction are of special interest. At this critical endpoint the expected critical slowing down of the dynamics could not only not be observed but instead the opposite, critical speeding-up by several orders of magnitude, could be demonstrated. Furthermore, we show that the phase diagram of Dy2Ti2O7 in this field direction can be reproduced solely from the dynamical properties, for example the resonance frequency of the observed relaxation that is connected to the monopole movement. Away from this point of the phase diagram the dynamics are slowing-down with reduction of temperature as one would expect. Additional measurements on Y2Ti2O7, a structurally identical but non-magnetic material, show only slowing down with reduction of temperature and no additional features. A possible explanation for the observed critical speeding-up is a coherent movement of magnetic monopoles close to the critical field that increases the resonance frequency by reducing the damping of the process. LiCuVO4 on the other hand behaves normally at its phase transition as long as the temperature is higher than 0.4 K. In this temperature regime the dynamics show critical slowing-down analogous to classical ferroelectric materials. This analogy extends also towards higher frequencies where the permittivity displays a ‘dispersion’ minimum that is temperature-dependent but of the order of 2 GHz. Below 0.4K the observed behavior changes drastically. Here we found no longer relaxational behavior but instead an excitation with very low energy. This low energy excitation was predicted by theory and is caused by nearly gapless soliton excitations within the 1D Cu2+ chains of LiCuVO4. Finally, in TbMnO3 the dynamics of the phase transition into the multiferroic phase was observed at roughly 27 K, a much higher temperature compared to the other materials. Here the expected critical slowing-down was observed, even though in low-frequency measurements this transition into the ferroelectric phase is overshadowed by the so-called c-axis relaxation. Therefore, only frequencies above 1MHz could be used to determine the critical exponents for both temperatureand magnetic-field-dependent measurements. This was done for both the peak frequency as well as the relaxation strength. In TbMnO3 an electromagnetic soft-mode with small optical weight causes the observed fluctuations, similar to the case of multiferroic MnWO4.