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As school districts move toward systemic approaches to instructional reform, they are increasingly collaborating with outside organizations in this complex work. While emerging research touts the benefits of insider–outsider collaboration, we know little about the underlying processes by which partnerships are negotiated and maintained at the district level. Drawing on data from a longitudinal case study of a collaborative effort between an urban school district and a university-based research center, we investigate the role of authority and status in an insider–outsider partnership at the district level. We use conceptual tools from frame analysis and sociological theories of authority to describe the process by which authority and status relations develop. We then show that both authority and status shape how negotiation between insiders and outsiders unfolds. We argue that those with authority have a greater range of tools for negotiation and thus have greater influence. Status relations are important but are often mediated by authority relations. In addition, we argue that the organizational structure of the district shapes how the process unfolds in consequential ways. We conclude with implications for scholarship on and the practice of insider–outsider collaborations at the district level. 相似文献
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Petter Bae Brandtzaeg 《Journalism Practice》2016,10(3):323-342
The verification of social media content and sources are increasingly critical to journalists and news organisations. In this study, we report on findings from qualitative interviews conducted with 24 journalists working with social media in major news organisations in Europe. Our findings contribute to new knowledge on journalists' social media working practices. We find that social media content are often used as the primary news source, and journalists use several different verification strategies to verify social media content and sources. Journalists are also found to have various competences in verifying social media content, in particular visual content. Moreover, our study suggests user requirements for future innovations in tools to support the verification of social media content. To avoid trade-offs between verification and fast-paced publishing, journalists will need efficient and easy-to-use support both in the verification process and in structuring and organising an overwhelming amount of social media content. 相似文献
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INTRODUCTION There is growing consensus among computa-tional scientists that observational data, result of computation and other forms of information produced by an individual or a research group need to be shared and used by other authorized groups across the world through the entire life cycle of the information (Wil-liams, 1998; Rowe et al., 2001). The Web has revo-lutionized the electronic publication of data. It has relied primarily on HTML that emphasizes a hypertext document app… 相似文献
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Bae Christine L. DeBusk-Lane Morgan Hayes Kathryn N. Zhang Fa 《Research in Science Education》2021,51(2):325-346
Research in Science Education - The purpose of this study was to develop and validate a survey of opportunities to participate (OtP) in science that will allow educators and researchers to closely... 相似文献
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Berit Bae 《Early Years: An International Journal of Research and Development》2010,30(3):205-218
The UN Convention on the Rights of the Child has during recent decades influenced professionals and policy‐makers in Norway as well as in other countries, resulting in changes in documents regulating early childhood institutions. Little is known, however, about the way this right is understood and realized in everyday practice. How is the concept of participation understood by professionals in the field? What issues emerge as problematic in everyday practice? Combining findings from an evaluation study and research from early childhood institutions, it is possible to unravel three problem areas. They are described under these headings: (a) Interpreting participation with a bias towards individualism? (b) Play and playful interaction – an integral part of children's right to participation? (c) Are the youngest children ‘mature’ enough? The article is rounded off by pointing to the need to pay critical attention both to what is happening on policy levels, and to theoretical perspectives influencing the professionals in the field. 相似文献
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A fault tolerant control scheme for actuator and sensor faults is proposed for a tilt-rotor unmanned aerial vehicle (UAV) system. The tilt-rotor UAV has a vertically take-off and landing (VTOL) capability like a helicopter during the take-off & landing while it could cruise with a high speed as a conventional airplane flight mode. A dual system in the flight control computer (FCC) and the sensor is proposed in this study. To achieve a high reliability, a fault tolerant flight control system is required for the case of actuator or sensor fault. For the actuator fault, the fault tolerant control scheme based on model error control synthesis is presented. A designed fault tolerant control scheme does not require system identification process and it provides an effective reconfigurability without fault detection and isolation (FDI) process. For the sensor fault, the fault tolerant federated Kalman filter is designed for the tilt-rotor UAV system. An FDI algorithm is applied to the federated Kalman filter in order to improve the accuracy of the state estimation even when the sensor fails. For a linearized six-degree-of-freedom linear model and nonlinear model of the tilt-rotor UAV, numerical simulation and process-in-the-loop simulation (PILS) are performed to demonstrate the performance of the proposed fault tolerant control scheme. 相似文献
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Eun-Hye Park Won-Young Bae Su-Jin Eom Kee-Tae Kim Hyun-Dong Paik 《Journal of Zhejiang University. Science. B》2017,18(2):152-160
Antioxidative and cytotoxic effects of chamomile (Matricaria chamomilla) fermented by Lactobacillus plantarum were investigated to improve their biofunctional activities. Total polyphenol (TP) content was measured by the Folin-Denis method, and the antioxidant activities were assessed by the 1,1-diphenyl-2-picrylhydrazyl (DPPH) method and β-carotene bleaching method. AGS, HeLa, LoVo, MCF-7, and MRC-5 (normal) cells were used to examine the cytotoxic effects by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium (MTT) assay. The TP content of fermented chamomile reduced from 21.75 to 18.76 mg gallic acid equivalent (mg GAE)/g, but the DPPH radical capturing activity of fermented chamomile was found to be 11.1% higher than that of nonfermented chamomile after 72 h of fermentation. Following the β-carotene bleaching, the antioxidative effect decreased because of a reduction in pH during fermentation. Additionally, chamomile fermented for 72 h showed a cytotoxic effect of about 95% against cancer cells at 12.7 mg solid/ml of broth, but MRC-5 cells were significantly less sensitive against fermented chamomile samples. These results suggest that the fermentation of chamomile could be applied to develop natural antioxidative and anticancer products. 相似文献
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Michelle Bae Greg Dimitriadis 《Discourse: Studies in the Cultural Politics of Education》2015,36(3):314-328
Contemporary discussions of globalisation (in general) and postcolonialism (more specifically) have largely remained wed to critiques of the West, including around its outsized role in the proliferation of neoliberal economic logics. As Chen argues in Asia as Method, these discussions have precluded other kinds of discussions about globalisation and its ‘theories’ – those that are generated between Asian countries and peoples (recognising that ‘Asia’ itself is a construction). In this essay, we look towards a different kind of conversation about the postcolonialism, one that does not take the West as its primary interlocutor. We will look closely at two South Korean contemporary artists – Do Ho Suh (1962–) and Kimsooja (1957–) – and see how they work through contemporary, material concerns around ‘home’ and ‘place’. In particular, these artists point us towards ‘movement’ as a trope for displacing extant concerns with fixed identity and as a kind of ontological state of being in the world. 相似文献