• Management & Information Systems Review
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• v.34 no.5
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• pp.23-47
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• 2015

In the Korea stock market, individual investors have perceived stock as short arbitrage investment, not long-term investment strategy. In order to reinforce stock market transparency and soundness, it is important to enforce the measures for stock market management. Especially, stock market event caused by financial policy can be given individual investors negative information regarding a stock trading. Thus, it is a need for investigating whether comprehensive review of listing eligibility is influenced on individual investors' responses and stock behaviors in respect of effectiveness. The purpose of this study to examine the relations between such stock market management and transitional aspect of individual investors' trading types and response on the based of pre- and post-event occurrence. Using an dataset of user's text messages on 9 firms posted on the firm-based social media (i.e., Naver, Daum, Paxnet) over the period 2009 to 2014. And we performed text-clustering and topic modeling according to keywords for classifying into investors group and non-investors groups and two types of investors were categorized depending on main topic transition by event windows in Comprehensive review of listing eligibility. The results indicated that a variety of stockholders existed in the stock. And the ratio of non-investors group was on the decrease, on the other hand, the proportion of investors group veer onto the side of pre-pattern after comprehensive review of listing eligibility. A distinctive feature of our study is to explain the influence of stock market management on response changes of individual investors as well as to categorize in accordance with time progression. Implications an suggestions for future research were also discussed.

• Journal of Science Education
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• v.42 no.1
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• pp.12-26
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• 2018

This study examined the effects of SSI argumentation program on the preservice biology teachers' decision-making types and communication ability. The SSI argumentation program was developed based on 'Social Decision-Making & Problem-Solving strategy' and Toulmin's argumentation pattern. The preservice teachers had opportunities of SSI argumentation through small group discussions. They were asked to identify the issues regarding SSI, think of solutions, and make a decision along with claims, warrants, data, and rebuttals. The preservice biology teachers experienced four SSI topics of abortion, euthanasia, gene manipulation, artificial intelligence. The results indicated that the preservice biology teachers significantly improved the communication ability after the intervention, but they did not change their types of decision-making. In addition, after the intervention, the Pearson correlation results indicated that 'the logical type' of decision-making significantly relates to the communication ability(p<.01). The preservice biology teachers mentioned that they improved their ability of considering warrants, data, background information, context, and rebuttals. Further, the preserivce biology teachers mentioned that they became take an interest in socioscientific issues and improved their ability of accepting criticism from others as well as caring about others when they argue each other. This study implicated that the SSI argumentation program has effects on improving personality education in school science.

• Journal of the Korean Chemical Society
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• v.50 no.2
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• pp.153-162
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• 2006

The purpose of this study was to analyze the STS (science-technology-society) contents in chemistry chapters of middle school science textbooks standardized by 7th national curriculum, and to investigate chemistry teachers' perception of STS education. This study was based on 8 essential elements in STS education suggested by Yager and 9 activities in SATIS (science and technology in society). The questionnaire and interview were used to investigate chemistry teachers' perception. As a result of this study, the average value of the STS contents in chemistry chapters of 7 kinds of middle school science textbooks was 22.4%, and the STS contents were preponderated to essential elements of science application and local and community relevance. And STS contents showed that science 2 textbooks were the most of all and in order of science 1 textbooks and science 3 textbooks. As a result of analysis by activities in SATIS, most activities were practice activity, problem-solving and decision making, and structured discussion. Chemistry teachers' perceptions of STS education were following. There were many responses that STS education was necessary for educational efficiency. On the other hand STS education was unnecessary because there were few effective teaching-learning method related with STS education. From these results, middle school science textbooks have to be complemented because 2 essential elements of the STS contents were preponderated in the science textbooks. And the teaching-learning method connected with STS education will have to be developed for the efficiency of STS education.

• Journal of Korea Technology Innovation Society
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• v.11 no.3
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• pp.335-351
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• 2008

The paper constructs the economic theory of sleeping patents in the knowledge-based economy. Starting with the definition of sleeping patents, we suggest the types of sleeping patents, intended and unintended ones. While intended sleeping patents are divided into 'for-defending technological position' and 'for-describing past technology', unintended sleeping patents include frictional, intrinsic, market-deficient, and institutional ones. We also introduce the concept of the natural rate of sleeping patent and measure the social loss due to sleeping patents. The study can contribute to solving policy problems for utilizing registered patents. For example, if we measure the natural rate of sleeping patent in Korea, we can estimate 'tolerable rate of sleeping patent' and control the extend of policy intervention for patents utilization. Since we invest the theory of sleeping patents firstly, the suggested concepts should be elaborated through further discussion in depth.

• The Journal of the Korea Contents Association
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• v.15 no.2
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• pp.507-519
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• 2015

Along with the rapid diffusion of smart devices, smart learning has been taking place as a main pedagogy in education. Under these drastic changing circumstances, social presence and interaction between learners have been highlighted as key factors in educational research. In this light of rising importance, this study examined the effects of modality and smart device on users' perceived social presence and interaction experience in a smart learning environment. It conducted 2(text based interface vs. audio/video based interface) by 2(smartphone vs. tablet PC) between-subjects experiment. 80 participants were systematically recruited and randomly assigned to four conditions. The findings showed that social presence was higher in audio/video based interface condition than in text based interface condition. Modality also had a positive effect on learner's interaction experience. On the other hand, the effect of smart device is found to be statistically insignificant. Instead, interaction effect existed between modality and device on social presence. The result of this study suggests that the modality and characteristics of device should be considered seriously when designing interface of smart learning contents. The findings in this study provide future studies with heuristic implications by highlighting users' perceived cognition and experience.

• Journal of The Korean Association For Science Education
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• v.21 no.4
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• pp.648-657
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• 2001

Using the concepts on the need of existence of living things, we investigate students' concepts on interdependence concepts between living things. The purposes of this study are to identify components of conceptual ecologies influencing on students' concepts and to describe the relations between those components and their concepts. The subjects of this study are 4 boys, 2 girls in the 3rd grade of middle school. The sources of data used in this study include a questionnaire, interviews and observation of the discussion class. Then, all data collected through each methods are compared and summarized in the relation to the questions of research. As a conclusion, it reveals that students' concepts are connected with several cognitive or affective components. Especially, the major components influencing on students' concepts are their metaphysical beliefs, conceptions includes other fields. These components function as constraints. Given these results, a teacher who want to teach a new concept to students should consider their characteristics and the components of conceptual ecology.

• Journal of the Korean Society for Library and Information Science
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• v.55 no.4
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• pp.293-313
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• 2021

The aim of this study is to classify the structure levels and types of the reading program in the secondary school library. The object of analysis is the practice case of the reading program included in 'Occupying School Library by 1318 Bookworms' for recently 10 years. There are 375 cases. According to the analysis result, most of the reading programs have three layers made up of 'blend title- reading activities- educational activities'. And there are classified into eight types (lecture, viewing, presentation, exhibition, making sth, debating, answering a quiz, experience) of the reading activities. The type of reading program depend on how to combine to the educational activities(reading, writing, listening, watching, speaking, making). This attribute of educational activities match up with modularity, completeness itself and organizing system. Through modular process of educational activities, it's possible to design their own reading programs based on the reading activity by adding, compensating other educational activities.

• The Journal of the Korea Contents Association
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• v.21 no.9
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• pp.105-116
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• 2021

Habruta is a question-based learning that talks, discusses, and argues in pairs. In particular, the famous painting Habruta is being implemented for the purpose of enhancing the appreciation ability of paintings and enriching the expressive power through questions and answers about the famous paintings. In this study, in order to support the famous painting Habruta for oriental paintings, we propose a method of automatically generating questions from the gender perspective of oriental painting characters using the current deep learning technology. Specifically, in this study, based on the pre-trained model, VGG16, we propose a model that can effectively analyze the features of Asian paintings by performing fine-tuning. In addition, we classify the types of questions into three types: fact, imagination, and applied questions used in the famous Habruta, and subdivide each question according to the character to derive a total of 9 question patterns. In order to verify the feasibilityof the proposed methodology, we conducted an experiment that analyzed 300 characters of actual oriental paintings. As a result of the experiment, we confirmed that the gender classification model according to our methodology shows higher accuracy than the existing model.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.3 no.3
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• pp.189-193
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• 2002

The research is concerned with digitalization process and strategy of 'traditional industries'. Along with development of the Internet, new industries are emerging, while traditional industries are also rapidly shifting from old modes to new ones. Most traditional industries uy to enhance their adaptability for changing environment. The investigators argue the strategic intent of traditional industries can be categorized into the four different types. The typology consists of two axis. On the one hand, the directions of digitalization are rationalization and development of new business. On the other hand, the objects of digitalization are product and process. According to the typology, the research suggests neologism for the four strategies; product innovation strategy. new business strategy. rationalization strategy and process innovation strategy.

• The Journal of the Korea Contents Association
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• v.13 no.7
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• pp.150-157
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• 2013

In this media convergence era when the 'hybrid' genres increase, it has been important to explore distinguishing genre-specific effects of contents use. This study revealed that news, current affairs/talk, and documentary genres respectively produces opposite directions of influences on values; likewise, drama and reality genres also respectively produces differentiated impact on values and social trust. Drama viewing itself shows contrary patterns on civic attitude, i. e., positive relationship with social trust while negative with tolerance.