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This study attempts to answer two questions. First, can a single cultural event impact the stock prices of a wide range of companies and sectors? Second, was the positive stock market response in the information technology (IT) sector as well as performing arts sector significant? To answer these questions, we examine whether a hit pop single, “Gangnam Style” by Park Jae-Sang in 2012, affected related sectors of the Korean stock market and whether market reactions went beyond the stock price of the singer’s agency to affect those of other firms. We use an event study approach. The results show two notable empirical findings. First, although the findings indicating abnormal returns and cumulative abnormal returns appear mixed, the overall results imply that the unprecedented worldwide hit single by the South Korean singer positively affected the Recreation & Culture and Digital Content sectors. In other words, the market interpreted the event as good news, with shareholders expecting positive effects on the related sectors. Second, a positive stock market response was observed in the IT sector as well. 相似文献
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Appreciation of problem structure is critical to successful learning. Two experiments investigated effective ways of communicating problem structure in a computer-based learning environment and tested whether verbal instruction is necessary to specify solution steps, when deep structure is already embellished by instructional examples. Participants learned to solve algebra-like problems and then solved transfer problems that required adjustment of learned procedures. Experiment 1 demonstrated that verbal instruction helped learning by reducing learners' floundering, but its positive effect disappeared in the transfer. More importantly, students transferred better when they studied with examples that emphasized problem structure rather than solution procedure. Experiment 2 showed that verbal instruction was not necessarily more effective than nonverbal scaffolding to convey problem structure. Final understanding was determined by transparency of problem structure regardless of presence of verbal instruction. However, verbal instruction had a positive impact on learners by having them persist through the task, and optimal instructional choices were likely to differ depending on populations of learners. 相似文献
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An Autoethnographical Study of Culture,Power, Identity and Art Education in Post‐Colonial South Korea 
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下载免费PDF全文 This article reflects my experiences of learning art in the 1970s and 1980s and my teaching career in school art education in twenty‐first century South Korea. This autobiographical reflection shows how I have struggled with my identity as an art teacher in the post‐colonial context of Western influences on Korean society since World War II. There has been greater tension and a greater struggle for different values, practices and identities when new values and practices have been introduced into the particular socio‐cultural context of South Korea. My struggles with particular kinds of pedagogic identity valued within the rapidly changing political, economic and cultural context of Western influences on Korean art education demonstrate the hidden structural mechanism of the relationship between culture, power and identity in the post‐colonial world of globalisation. This study as an autoethnographical research provides critical insights into how identities are produced by pedagogic discourses and practices of art education that are constructed through the specific systems of practice and language which transmit and regulate such identities and values. 相似文献
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Liang Xiong Lyu Fen Li Kang Wu Pan Deng Seung Hee Jeong Zhigang Wu Han Ding 《国家科学评论(英文版)》2019,6(5):970
Soft robotics with new designs, fabrication technologies and control strategies inspired by nature have been totally changing our view on robotics. To fully exploit their potential in practical applications, untethered designs are preferred in implementation. However, hindered by the limited thermal/mechanical performance of soft materials, it has been always challenging for researchers to implement untethered solutions, which generally involve rigid forms of high energy-density power sources or high energy-density processes. A number of insects in nature, such as rove beetles, can gain a burst of kinetic energy from the induced surface-energy gradient on water to return to their familiar habitats, which is generally known as Marangoni propulsion. Inspired by such a behavior, we report the agile untethered mobility of a fully soft robot in liquid based on induced energy gradients and also develop corresponding fabrication and maneuvering strategies. The robot can reach a speed of 5.5 body lengths per second, which is 7-fold more than the best reported, 0.69 (body length per second), in the previous work on untethered soft robots in liquid by far. Further controlling the robots, we demonstrate a soft-robot swarm that can approach a target simultaneously to assure a hit with high accuracy. Without employing any high energy-density power sources or processes, our robot exhibits many attractive merits, such as quietness, no mechanical wear, no thermal fatigue, invisibility and ease of robot fabrication, which may potentially impact many fields in the future. 相似文献
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Hee‐Yeon Cho 《Inter-Asia Cultural Studies》2013,14(4):497-509
Abstract This paper tries to analyze the historical change in the Third World in its emergent stage, in the authoritarian stage and in the current democratic stage and, thereafter, find a way to revive the Bandung spirit in the current globalization context. I define the Bandung spirit as one of a ‘non‐aligned self‐helped “organization against” the dominant powerful countries’; that is, spirit of ‘anti‐predominance’. This spirit has emerged on the base of such domestic orientation and realities as economic self‐reliance, nationally integrated political regime, convergence of the state and civil society around anti‐colonialism. However, according to intensification of the Cold War confrontation on the international level and its centrifugal influence, the early Third World changed to a ‘new’ authoritarian Third World. The Third World in this stage could be characterized by an exclusive authoritarian political regime, dependent‐developmentalist economic orientation and coercively repressed and mobilized, in the top‐down way, civil society. This authoritarian Third World began to be confronted with a strong struggle from the bottom for democratization. In order for democratization of the Third World to become its true revival in the context of globalization, the following tasks should be considered. First, the democratic Third World should be a great driving force for the institutionalization of the transnational public regulatory mechanism. Second, the democratic Third World countries try to go over a kind of ‘transformed’ dependent development strategy. Third, democratization should go along with recovery of political inclusiveness and openness of the state to civil society’s demands. Thereafter, I tried to construct globalist re‐interpretation of the Bandung, by way of conceptualizing the current globalization as imperial globalization, unlike the imperialist globalization which the historical Bandung wanted to confront. I argue that the Bandung spirit of collective self‐help organizations against the newly emerging dominant order should be revived in this worse imperial globalization context. In addition, I argue that a nationalist resistance is also one component of the multiple resistances in the current imperial globalization. 相似文献
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Resource allocations, knowledge network characteristics and entrepreneurial orientation of multinational corporations 总被引：1，自引：0，他引：1
This paper analyses entrepreneurial orientation (EO) in multinational corporations (MNCs) and develops a new typology of MNC EO based on combining R&D and asset growth investment intensities as orthogonal resource allocations. A cluster analysis of US MNCs on these two dimensions reveals three types of entrepreneurial stance: conservative, aggressive-asset growth and balanced. Internal knowledge network characteristics are shown to vary by stance, with more aggressive stances linked to knowledge governance supportive of the entrepreneurship process. In linking entrepreneurial orientation to the knowledge network of the MNC, this paper identifies factors important to the strategic management and on-going renewal of MNCs. In addition, the vector of R&D investment vs. asset growth investment is an indicator of entrepreneurial aggression and presents a new method of understanding the international strategies of MNCs. 相似文献
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Teachers play a central role in inquiry science classrooms. In this study, we investigate how seven teacher variables (i.e., gender, experience, perceived importance of inquiry and traditional teaching, workshop attendance, partner teacher, use of technology) affect student knowledge integration understanding of science topics drawing on previous research. Using a two‐level hierarchical linear model, we analyze year‐end knowledge integration performance of 4,513 students taught by 40 teachers across five states. Results indicate that students of teachers who value inquiry teaching strategies have significantly higher levels of knowledge integration understanding than those of teachers who believe in traditional teaching methods. In addition, workshop attendance and having a partner teacher teaching the same unit in the same school also have a positive impact on students' knowledge integration levels. The results underscore the importance of professional development and collegial support in enhancing student success in inquiry science. © 2009 Wiley Periodicals, Inc. J Res Sci Teach 47:807–819, 2010 相似文献
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Appropriate intellectual property protection and economic growth in countries at different levels of development 总被引：1，自引：0，他引：1
This paper examines how the role of patents and utility models in innovation and economic growth varies by level of economic development. Using a panel dataset of over 70 countries, we find that patent protection is an important determinant of innovation and that patentable innovations contribute to economic growth in developed countries, but not in developing. Instead, in developing economies, a minor form of intellectual property rights (IPRs) - namely utility models - is conducive to innovation and growth, controlling for other factors. Using Korean firm level data as a case study, we find that utility model innovations contribute to firm performance when firms are technologically lagging and that those minor innovations can be a learning device and thus a stepping stone for developing more patentable inventions later on. Upon reaching higher levels of technological capabilities, firms become more reliant upon patents and less on utility models. Thus the lesson here is that patent protection enhances innovation and economic growth in countries where the capacity to conduct innovative research exists. Where this capacity is weaker, a system that provides incentives to conduct minor, incremental inventions is more conducive to growth. The significance of this paper is to emphasize the importance not just of the strength of IPRs but of the appropriate type of IPRs for economic development. 相似文献