• Journal of Convergence for Information Technology
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• v.7 no.3
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• pp.105-109
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• 2017

This paper examines the effect of the analysts' earnings forecast revisions on stock price after the dividend announcement of the firms has been released. We show that the analysts' upward revisions on earnings forecasts are followed by the positive cumulative abnormal return. We also investigate the signalling effect and the confirmation effect with respect to the effect of the dividend announcement and the earnings forecast revisions on stock price. The test results show that the confirmation effect is stronger than the signalling effect. That is, the investors react only when the analysts' forecasts coincide with the preceding dividend announcement.

• Journal of the Korean Society for information Management
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• v.28 no.3
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• pp.47-64
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• 2011

This study analysed the librarian competencies and job type to identify the present state of required librarians and to suggest the direction for education in the organization of information. As the result of investigation 278 job announcement, the traditional qualifications and the knowledge of new standard and S/W related electronic resources are required. The job type divided between cluster for the traditional demands and cluster for electronic resources and information technology. It proposed the expansion of education related electronic resources and information technology, the balance of theory and practice, and the adoption of new teaching method for education in the organization of information.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2009.10a
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• pp.1026-1029
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• 2009

Efficient Power consumption is important in sensor networks because charging of deployed sensor nodes is too difficult. So this paper focused on Modified-CBPER reduces energy consumption by reducing CBPER's data announcement ragne, and propose an algorithm to reduce power consumption by additional reduction of data announcement range. Proposed EM-CBPER(Enhanced Modified CBPER) somewhat increases power consumption of data request and data forwarding but it reduces total power consumption by reducing data announcement transmission of account for large quantity on total packet transmission.

• Journal of The Korean Society of Integrative Medicine
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• v.6 no.3
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• pp.43-57
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• 2018

Purpose : The act of reporting child abuse by people obliged to report child abuse is a way to detect long-term incidents of child abuse in early stages and to prevent a vicious cycle of social crimes. Thus, this study intends to enhance the reporting of child abuse through a study on the perception of people obliged to report child abuse through the public service announcement on child abuse. Methods : First, in order to identify the demographic characteristics of the subjects, the frequency and percentage were calculated. Second, in order to verify the reliability of the variables, Cronbach ${\alpha}$ was calculated. Third, in order to examine the perception of people obliged to report child abuse and the perception of reporting, a t-test (verification) and One-way ANOVA were conducted. Fourth, in order to identify the relationship between variables, a Correlation analysis was conducted. Result : The results show that people obliged to report child abuse did not perceive the public service announcement on child abuse positively and it varied depending on their jobs. The correlation between the public service announcement on child abuse and sub-factor of perceptions of reporting showed that a positive correlation was found in reliability, interest, understanding, perceiving the public service announcement on child abuse, perceiving severity and effectiveness, whereas a negative correlation was found in perceiving hazards. Conclusion : The education for preventing child abuse is required by the job type of people obliged to report. It is necessary to convey the message of effective public service announcement. The public service announcements on child abuse must be nationwide and long-term projects.

• Journal of the Korean Society of Earth Science Education
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• v.3 no.1
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• pp.65-75
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• 2010

The purpose of this study is to present a Freedom Inquiry Method by Revised Science Curriculum in 2007. This study introduced IIM(Independent Inquiry Method), PBL(Problem Based Learning), Small Inquiry Method, Science Notebooks, Project Learning Method about Freedom Inquiry Method. The results of this study are as follows: First, IIM(Independent Inquiry Method) is studying method in the inquiry process center. The inquiry process is composed of total 9 phases, inquiry subject really it is, detailed aim deciding, information searching, it searches, quest result it arranges, aim evaluation, the report making, it announces, it evaluates, it is become accomplished. Second, It is a studying method which it starts with the problem which is Problem Based Learning, study atmosphere creation phase, problematic presentation phase and sleep static problem solving the phase which it attempts, it is become accomplished with autonomous studying phase, coordinated studying and discussion studying phase, discussion resultant announcement studying phase, arrangement and evaluation. Third, Small Inquiry Method, Call it accomplishes the call grade of the students among ourselves 4~8 people degree where only the quest learning capability is similar within class. Also interaction and coordinated function of the members between it leads and the subject which is given in the group it cooperates and it solves with it is a quest method which arrives to aim of commonness. This method divides on a large scale in three parts, it becomes accomplished in programming phase, quest accomplishment and resultant announcement. Fourth, Science Notebooks learns a scientific contents and a scientific quest function and the possibility of decreasing in order to be, from the fact that the help which it understands. This planing, data searching, it searches, becomes accomplished with resultant arrangement, announcement and evaluation. Fifth, The Project Learning Method the studying person oneself studying contents, it establishes a plan and it collects it accomplishes process of etc. it evaluates it leads and a subject and information and with real life it is a method which it studies naturally from the learning environment inside which is similar. This is preliminary phase, project start, project activity and project arrangement.

• The Journal of Korean Association of Computer Education
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• v.17 no.6
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• pp.59-69
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• 2014

Following the announcement made in 2007of the information education curriculum for high schools, India followed through with a similar announcement in June 2013 for an elementary school curriculum to be linked with that of the high schools. As a characteristic feature of India's educational curriculum, the structure is "helical" in nature, while interaction between teachers and students is emphasized as a key method for education. During the past few years India has revised its educational curriculum based on Bruner's 'Structure of Knowledge,' which has changed the paradigm of the nation's educational curriculum. This study analyzed India's educational curriculum that aims at a helical structure and, at the same time, emphasizes 'narrative' thinking in schools. The goal of this study is to discover possible suggestions or implications for Korea's information education curriculum by analyzing India's education that concurrently seeks to employ 'Structure of Knowledge' and 'Narrative' theories in a single educational curriculum.

• Journal of the Korean Data and Information Science Society
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• v.15 no.3
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• pp.523-529
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• 2004

In Korea, mathematics education has been changed according to the 7th national mathematics curriculum renovated by the Ministry of Education and Human Resources Development announcement in 1997. The education of probability and Statistics has been carried out as a part of this curriculum. We analyze and compare 3 kinds of mathematics textbooks for 10-12 grade students. Descriptions of random variable, sample variance and sample standard deviation, distribution of sample mean, and etc. which are on some textbooks, are misleaded in school education. We suggest the unbiased estimator of sample variance in textbooks and distributions of sample means with normal population assumption.

• Journal of The Korean Association of Information Education
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• v.12 no.2
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• pp.131-139
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• 2008

Recently the wireless internet technologies have been widely used in education environments. The purpose of this paper is to design and implement mobile class management support system. The proposed system is based on the existing CSCL theory and modified in accordance with mobile environments. The proposed system has the following characteristics. First, various types of cooperation are possible in this system. In this system, students can participate actively through tools such as BBS. Second, wired and wireless web sites are linked systematically so that users can access via either site. Two sites are complementary each other. Third, parents are encouraged to participate in class activities. Some basic information such as curriculum and daily announcement is open for parents. The proposed system has been applied to elementary school students. Extensive survey shows that the proposed system has good effect on participation, interaction, and satisfaction in class management, respectively.

• Journal of Creative Information Culture
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• v.7 no.1
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• pp.11-19
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• 2021

With the announcement of the AI national strategy, various policies for AI education are being proposed, and AI convergence education for teachers is actively being promoted. In addition, AI speakers are being sold and distributed to each home, and field studies of educational use of AI speakers have just started. This study examines the controversial problems that AI speakers may cause in AI ethics, and attempts to derive an ethical dilemma that may arise when AI speakers are used at home or at school. This dilemma can be used in the moral competence test (MCT), which measures the level of moral judgment for each group of artificial intelligence speakers.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.19 no.8
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• pp.1893-1900
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• 2015

The government has the responsibility to prevent abuses of monopoly and promote competition in order to maximize consumer welfare. The government should address the asymmetry in the information as much as possible and ensure consumer choice. The subsidy seems to reduce the burden on the consumer service charges and handset prices but it actually distorts the market through price discrimination. The government caused the principal-agent problem by neglecting their appropriate role to prevent distortion of the mobile telecom market. The money used as subsidy is part of excess profit and could be transferred to down the price of mobile phone and charges and it would become a benefit to consumers. Separate announcement of subsidies by Mobile Communications Terminal Distribution Structure Improvement Act is a little developed policy but it was not actually realized. The market price close to that from perfect competition structure is plausible, ultimately.