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Sarah-Jane Fox Caroline Babington Fiona Macalister Thomas Bower Charlotte Martin de Fonjaudran 《文物保护研究》2018,63(5):81-86
ABSTRACTResearch into dust deposition rates on the wall paintings in the State Apartments at the Palace of Westminster, London, UK, began during the restoration of the encaustic floor tiles. The study has broadened to inform day-to-day preventive care for the extensive fine art collections on display and the intricately decorated Gothic interiors, providing a powerful tool for the forthcoming restoration and renewal of the Palace. Different monitoring methods, using optical microscopy, macro-photography and software-based image analysis, were investigated. Qualitative analysis with SEM-EDX and optical microscopy allowed the identification of a number of anthropogenic, geogenic and biological sources of particulate matter, while quantitative results elucidated deposition trends, highlighting both seasonal and works-related impacts. Results indicated that mitigation measures taken to protect works of art and limit the diffusion and deposition of particulate matter on surrounding surfaces were successful. A new dust monitoring method, based on imaging of vertical surfaces and on a recently developed image analysis workflow (CHIJ) operated in open-source software (ImageJ) was trialled alongside more traditional methods for measuring dust deposition through collection of particulate matter on proxies. Results showed significant discrepancies between data acquired directly on wall painting surfaces as compared to horizontal glass slides. The advantages, limitations and complementarity of both monitoring methods were identified, and their potential contributions to the development of data-driven conservation approaches for heritage sites were assessed. The relatively low-tech methods and equipment used present useful and adapted tools for collection managers and conservators to inform their decision-making processes. 相似文献
254.
A theoretical framework for building online communities of practice with social networking tools 总被引:2,自引:1,他引:1
Charlotte N. Gunawardena Mary Beth Hermans Damien Sanchez Carol Richmond Maribeth Bohley Rebekah Tuttle 《Educational Media International》2013,50(1):3-16
This paper proposes a theoretical framework as a foundation for building online communities of practice when a suite of social networking applications referred to as collective intelligence tools are utilized to develop a product or solutions to a problem. Drawing on recent developments in Web 2.0 tools, research on communities of practice and relevant theories of learning, and the authors' own action research experience in collaborative knowledge creation utilizing Web 2.0 tools, this paper discusses a learning community's spiraling process as it moves from a given sociocultural context through discourse, action, reflection, and reorganization toward socially mediated metacognition. Un cadre théorique pour construire des communautés de pratique en ligne en utilisant des outils de maillage social Cet article propose un cadre théorique sur lequel édifier des communautés de pratique en ligne lorsqu'on utilise, pour mettre au point un produit ou des solutions à un problème, une série d'applications destinées à la construction de réseaux humains et connues sous le nom d'outils d'intelligence collective. En s'appuyant sur les évolutions récentes des outils Web 2.0, sur les recherches sur les communautés d'usage et les théories de l'apprentissage pertinentes ainsi que sur l'expérience propre aux auteurs en matière de recherche action sur la création collaborative de savoir en utilisant le Web 2.0, le présent article examine le processus en spirale d'une communauté d'apprentissage qui part d'un contexte socio culturel donné et qui passe par le discours, l'action la réflexion et la réorganisation pour atteindre la métacognition reposant sur la médiation humaine. Ein Theorierahmen für den Aufbau von “Online‐Communitives of Practice” mit Hilfe von Anwendungen für Social Networking In diesem Beitrag wird ein theoretischer Rahmen als Grundlage für den Aufbau von Online‐Praxis‐Gemeinschaften vorgestellt, wenn eine Reihe von Social Networking Anwendungen, auf die man sich als kollektive Intelligenz‐Tools beziehen kann, benutzt wird, um ein Ergebnis oder eine Problemlösung zu entwickeln. Wenn man den neuesten Entwicklungsstand bei den Web 2.0 tools mit einbezieht, die Forschung im Kommunikationsbereich, die relevanten Lerntheorien und die eigenen Forschungen und praktischen Erfahrungen des Autors in der Benutzung von Web 2.0‐Anwendungen auf dem Gebiet der gemeinschaftlichen Wissensermittlung, belegt dieses Papier den spiralförmigen Prozess beim Bewegen von einem bestimmten soziokulturellem Kontext aus durch Diskurs, Aktion, Reflektion und Reorganisation hin zu sozial vermittelter Metaerkenntnis. Un marco teórico para la construcción de comunidades de práctica en línea con herramientas de creación de redes sociales Este artículo propone un marco teórico como base para la construcción de comunidades de práctica cuando se utiliza una serie de aplicaciones sociales en redes (conocidas como herramientas de inteligencia colectiva) para desarrollar un producto o solucionar tal o tal problema. Basandose en las evoluciones recientes de las herramientas Web 2.0, en las investigaciones sobre las Comunidades de Uso y las teorías del aprendizaje más pertinentes así como en la experiencia propia de la investigación/acción por parte de los autores sobre la creación colaborativa de conocimiento a través del uso de herramientas Web 2.0, este artículo examina la evolución « en espiral » de una comunidad de aprendizaje que sale de un contexto socio cultural determinado y pasando por el discurso, acción, reflexión, alcanza la metacognición basada en la mediación humana. 相似文献
255.
Becoming connected,being caring 总被引:1,自引:1,他引:0
This paper highlights perspectives on action research in education, health and social care and was originally presented as a keynote at the International Practitioner Research Conference and Collaborative Action Research Conference in 2005. The paper links with the other conference keynote given by Stephen Kemmis, co‐author of Becoming Critical. It reflects on the importance of Being Caring in action research in the context of health and social care; particularly in relation to emotionally supporting practitioners to improve their practice in settings which do not always welcome more emancipatory or critical approaches often used in education. The paper begins by exploring the nature of practitioner research and action research in health and social care and its links with quality. It argues that health and social care professionals have often drawn their methodological understanding from the literature written by colleagues in education. This literature tends to support critical and emancipatory forms of action research, which health and social care professionals have tended to adopt in an uncritical manner. Reflecting on some of the contextual constraints in health and social care, it argues that many of these factors are beyond the control of individual practitioners and suggests a need to focus on the neglected area of emotions, in addition to, contextual issues. To illustrate the usefulness of this approach an example of psychodynamically informed action research is given. The paper concludes that in the quest to be critical, practitioner researchers/action researchers in education, health and social care may be ignoring the emotional contexts in which they work. It suggests that being caring may be the key to being critical. 相似文献
256.
Women are underrepresented in advanced positions in higher education in Europe. This study takes a horizontal perspective and focuses on the relationship between gender and discipline in order to combine research on gender in higher education with theories of disciplinary differences in academic cultures. The study points out substantial differences between disciplines in gender composition, specifically, the probability of a person leaving academia after earning a doctor’s degree and various attitudes towards gender equality work. Our approach, which is based on quantitative longitudinal as well as qualitative research methods, has yielded a more complex and contradictory picture of gender equality in higher education than have vertical cross-sectional studies. 相似文献
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Charlotte E. Nusberg 《Educational gerontology》2013,39(4):395-409
There has been an increasing interest in providing educational opportunities for the elderly in most industrialized countries over the past decade. This is a reflection in part of more older people actively seeking out learning opportunities, a recognition on the part of educators of the continued ability to learn well into old age and a desire to democratize higher education, and the goal of policy makers to promote active retirement in the hope of warding off pathological processes that can accompany aging. Although accurate statistics remain elusive, there has been widespread expansion in both formal and nonformal adult education opportunities for older learners in other industrialized countries. Striking examples include the success of study circles in Sweden and universities of the third age in Europe, Latin America, and Japan. Evidence collected to date suggests that they are not only tremendously popular with older students but also have salutary effects on individuals’ health and well‐being and enhance their ability to contribute to their communities. Nevertheless, all these educational opportunities still reach only a minority of the elderly; efforts in the future must be directed to expanding nonformal learning opportunities if larger numbers of old people are to be reached. 相似文献
259.
Laura Nissen Kimberly Pendell Pauline Jivanjee Charlotte Goodluck 《Journal of Teaching in Social Work》2013,33(4):384-400
Social workers practice in rapidly changing and complex environments where they encounter challenges that include increasing evidence-based practice requirements, a shifting information landscape, and diminishing workplace resources. To address these challenges, social workers need to engage in lifelong learning. The purpose of this article is to explore conceptual elements and assumptions underlying lifelong learning; propose social work specific approaches to lifelong learning; present a conceptual model to orient social work educators to the possibilities inherent in lifelong learning for practice, with inclusion of suggested practice behavior; and offer a research agenda for practice. 相似文献
260.
Jo Lunn Brownlee Eva Johansson Charlotte Cobb-Moore Gillian Boulton-Lewis Sue Walker Joanne Ailwood 《Education 3-13》2013,41(2):164-183
While investment in young children is recognised as important for the development of moral values for a cohesive society, little is known about early years teaching practices that promote learning of moral values. This paper reports on observations and interviews with 11 Australian teachers, focusing on their epistemic beliefs and beliefs about teaching practices for moral education with children aged 5–8 years. The analysis revealed three main patterns of thinking about moral education: following others, reflecting on points of view, and informing reflection for action. These patterns suggest a relationship between epistemic beliefs and beliefs about teaching practices for moral learning which have implications for teacher professional development concerning experiences in moral education. 相似文献