排序方式: 共有45条查询结果,搜索用时 0 毫秒
31.
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
32.
Abstract Information technology capable of real‐time evaluation has changed the nature of labor control by completely monitoring a system. This homeostasis of real‐time control eliminating the space barrier has increased workers' stress and anxiety and weakened the workers' solidarity. An IT surveillance system, frequently called an electronic panopticon, has been viewed as the sophisticated form of the Talyor principle of scientific management. However, IT surveillance has operated in the way of combined form with the cultural values of a certain society. In this paper, I show how cultural values influence labor control through IT surveillance using a case study from the tire industry. H tire company has introduced the DAS (Data Acquisition System) for increasing productivity through a new control system. Real‐time evaluation, an instant report of each workers' merit on the monitor, and compensation have made workers feel constantly under surveillance and under stress due to competition with other workers. This IT surveillance has more deeply influenced labor control when combined with patriarchal familism – composed of features such as group‐oriented attitudes, hierarchical relations between the old and young, subordination to one's seniors, etc, which have come to be viewed as some of the typical cultural values prevalent in South Korea. Although the basic principle of technology may be the same in all societies, the effects of applied information technology depend on specific socio‐historical contexts: not only culture, habits, and politics, but also the power relations between managers and workers. I will tentatively designate this as a ‘hybrid form’ of labor control, in the sense that cultural value is added or intermingled with the principle of IT surveillance. 相似文献
33.
34.
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
35.
Herein, we present a large-area 3D hemispherical perforated microwell structure for a bead based bioassay. Such a unique microstructure enables us to perform the rapid and stable localization of the beads at the single bead level and the facile manipulation of the bead capture and retrieval with high speed and efficiency. The fabrication process mainly consisted of three steps: the convex micropatterned nickel (Ni) mold production from the concave micropatterned silicon (Si) wafer, hot embossing on the polymer matrix to generate the concave micropattened acrylate sheet, and reactive ion etching to make the bottom holes. The large-area hemispherical perforated micropatterned acrylate sheet was sandwiched between two polydimethylsiloxane (PDMS) microchannel layers. The bead solution was injected and recovered in the top PDMS microchannel, while the bottom PDMS microchannel was connected with control lines to exert the hydrodynamic force in order to alter the flow direction of the bead solution for the bead capture and release operation. The streptavidin-coated microbead capture was achieved with almost 100% yield within 1 min, and all the beads were retrieved in 10 s. Lysozyme or thrombin binding aptamer labelled microbeads were trapped on the proposed bead microarray, and the in situ fluorescence signal of the bead array was monitored after aptamer-target protein interaction. The protein-aptamer conjugated microbeads were recovered, and the aptamer was isolated for matrix assisted laser desorption/ionization time-of-flight mass spectrometry analysis to confirm the identity of the aptamer. 相似文献
36.
37.
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
38.
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
39.
The purpose of this study was to understand how an 8th grade science class used a structured problem-based learning (PBL) strategy to study volcanoes and to discuss some of the issues that science teachers might encounter when designing and implementing the PBL strategy. This study took place at Collins Middle School, which is located in a cosmopolitan community in Illinois. The PBL lessons, which a teacher taught cooperatively with his student-teacher, required ten class periods to study two real-life volcanic phenomena. The guiding research questions were: (a) in what ways did the teachers (Mr. Brown and Ms. Jones) facilitate student learning about volcanoes using the PBL strategy?; and (b) what were the students’ engagements like during the PBL classes on a volcano unit? This study’s findings supported three main assertions: first, the teachers’ questions and group dynamics guided and facilitated the students’ course of learning; second, with the teachers’ specific guidance, the students collaboratively built up their supporting evidence; most of the supporting evidence was much more developed than just listing the terms or simple facts on volcanoes; and, third, there existed a tension between the teachers’ ideals and the implementation of the PBL strategy. They tended to slip into the traditional role of focusing on scientific facts about volcanoes. 相似文献
40.
This study, analysing an entertainment-education drama's episodes and bulletin board messages about the episodes, explored the relationship between audience involvement and its antecedents. Episode topic and issue controversy were associated with parasocial interaction and reflection as well as behavioural responses (poll participation and message contribution). This study also found the possibility that entertainment-education interventions could be effectively executed by combining old media's entertainment and education function and cyber media's information and discussion forum providing function. 相似文献