• Bulletin of the Korean Mathematical Society
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• v.46 no.4
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• pp.789-802
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• 2009

We show that computation of a sequence of Richelot isogenies from specified supersingular Jacobians of genus-2 curves over $\mathbb{F}_p$ can be executed in $\mathbb{F}_{p2}$ or $\mathbb{F}_{p4}$ . Based on this, we describe a practical algorithm for computing a Richelot isogeny sequence.

• Journal of health informatics and statistics
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• v.43 no.4
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• pp.336-343
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• 2018

Objectives: The purpose of this study was to test and validate a model to predict antenatal depression. Methods: Data were collected from a self-administered questionnaire of 251 pregnant women in D metropolitan city. Exogenous variables were self-esteem, social support, and high risk pregnancy. Endogenous variables consisted of pregnancy stress, pregnancy coping, and antenatal depression. Data were analyzed by SPSS 23.0 and AMOS 21.0. Results: Model fit indices for the hypotheoretical model fitted to the recommended levels. Out of 12 paths, 6 were statistically significant. Variables accounted for 72.6% of antenatal depression. Predictors of antenatal depression were pregnancy stress (t = 7.64), self-esteem (t = -2.03), and social support (t = -2.06). Conclusions: Results indicate that an intervention program which increases self-esteem would be useful for pregnant women to decrease antenatal depression level. Antenatal program are needed to be applied to spouse and family members as well. To decrease pregnancy stress in pregnant women contributes to antenatal depression.

• The Journal of Korean Association of Computer Education
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• v.23 no.1
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• pp.1-28
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• 2020

The purpose of this study is to establish the standard curriculum for informatics by reflecting the changing information technology and social needs and based on the competencies that school at each level must have. To accomplish the purpose, the informatics curriculums of 8 countries were analyzed, and the learning elements of the curriculum were extracted with the body of knowledge of the higher-level informatics standard curriculum being the frame. To establish the standard curriculum, 51 experts reviewed it and their opinions were collected 10 times. As a result of this study, the competencies that need to be fostered through the informatics curriculum were defined, and the competency-centered curriculum, including the learning elements required to acquire the competencies, and the competencies that can be manifested through the learning element, was proposed. The implication is that the informatics standard curriculum, proposed in this study, laid down the foundation for establishing the informatics curriculum scheduled to be revised in 2022.

• Journal of applied mathematics & informatics
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• v.40 no.1_2
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• pp.289-303
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• 2022

This article examines the multidimensional index extraction method of the disability social security system based on data mining. While creating the data warehouse of the social security system for the disabled, we need to know the elements of the social security indicators for the disabled. In this context, a clustering algorithm was used to extract the indicators of the social security system for the disabled by investigating the historical dimension of social security for the disabled. The simulation results show that the index extraction method has high coverage, sensitivity and reliability. In this paper, a multidimensional extraction method is introduced to extract the indicators of the social security system for the disabled based on data mining. The simulation experiments show that the method presented in this paper is more reliable, and the indicators of social security system for the disabled extracted are more effective in practical application.

• Proceedings of the Korea Information Processing Society Conference
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• 2023.11a
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• pp.886-887
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• 2023

This paper is about the development of kiosks that provide four types of service. Simple UI and educational videos solve the complexity of existing kiosks and provide an intuitive and convenient screen to users. In addition, the AR function, which is a three-dimensional form, shows directions and store representative images. After storing user information in the DB, a learning model is generated using user-based KNN collaborative filtering to provide a recommendation menu. As a result, it is possible to increase user convenience through kiosks using metaverse and AI recommendation services. It is also expected to solve digital alienation of social classes who have difficulty using kiosks.

• The Journal of Korean Association of Computer Education
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• v.21 no.1
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• pp.31-42
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• 2018

Countries around the world are strengthening informatics education to cope with the development of technology that leads to rapid social change. The last step in the capacity to foster through formal education is high school education. The purpose of this study is to examine the competence and level of informatics curriculum for high school students who aim to enter university in terms of testing tools. In order to carry out the research, we analyzed informatics education related test tools for high school students such as Japan, Germany, and USA. The results of the analysis are as follows: First, both the essay type and the short answer type question are included in the test tool as well as the multiple choice question type. Second, we use the real world model as an item and ask whether we can use computing power for practical problem solving ability. Third, the items directly related to the university education are reflected in the items. This study suggests that it has helped to elucidate the features and discussions of the test tool and establish the development direction of the test tool for informatics education.

• Journal of Contemporary Eastern Asia
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• v.12 no.2
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• pp.49-59
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• 2013

Social media such as Twitter and Facebook have become popular. In the age of social media, many people have become more active online. For example, about half of all global active Internet users are on Facebook (Perry 2012). Personal branding is a very important strategy to build on an individual's strengths, and this kind of branding is expected to contribute to self-actualization. Therefore, the presence of mentors who advise users to discover their own strong points for self-actualization is necessary. In this paper, we propose a personal branding support service, Mentors, which connects mentors and mentees. The core concept is: "Everyone has the face of both a mentor and mentee." The key function is sharing stages of self-analysis in human life design: Determining value, creating a mission, and forming a strategy. From this function, a good match between a mentor and mentee can be found. The program aims to improve human life by understanding the client's strengths and using social media effectively. Future work includes launching Mentors and evaluating its service.

• Safety and Health at Work
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• v.10 no.2
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• pp.248-249
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• 2019

• The Journal of Korean Association of Computer Education
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• v.21 no.2
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• pp.31-40
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• 2018

The purpose of this study is to analyze the perception of elementary and secondary parents on 'Informatics' education to solve the various social problems that can occur due to the application of mandatory 'Informatics' subject and find the stable public education settlement plans. For this purpose, we conducted and analysis of questionnaire survey on 'Informatics' education for parents of elementary and secondary students who participating the SW education camp in K university. The major results of this study are as follows. Firstly, both of elementary and secondary parents show high interest in the SW education policy of the government, but they are showing distrust about the timeliness of the actual SW education policy and the support of elementary and secondary education. Secondly, both of the elementary and secondary parents showed high awareness of the necessity and importance of 'Informatics' education and they recognized that 'Informatics' education should be done in high school. Thirdly, parents of elementary and secondary school students perceive that there is not enough time for 'Informatics' education and both of elementary and secondary parents to secure teachers with professional competence as a leading factor for stable settlement of 'Informatics' education in public education field. In this study, we suggested the stable settlement plans in public education field based on the analysis results.

• Korea Journal of Hospital Management
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• v.22 no.1
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• pp.51-60
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• 2017

목적: 보건의료 관리 분야의 진로는 급변하는 사회적 요구와 시대적 흐름에 발맞추어 다양한 형태로 변화하여 왔다. 본 연구에서는 학습 수요자 측면으로 교과과정에 대한 만족도와 보건의료 계열 취업에 영향을 미치는 요인을 분석하여 보건의료 계열 학과 학생들의 취업률을 향상시킬 수 있는 방안을 도출하고자 한다. 방법: 경기도 성남시 소재 보건의료 계열 학과 163명을 대상으로 2013년 5월 6일부터 5월 9일까지 설문조사를 거쳐 분석을 실시하였다. 결과: 성별에 따른 교육과정의 만족도는 통계적으로 유의하지 않았으나, 고학년으로 올라갈수록 교육과정에 대한 만족도가 낮은 것으로 분석되었다. 성별과 학년에 따라 자격증 취득 계획 여부는 통계적으로 유의한 차이를 보였다. 즉, 성별이 여학생이고 학년이 낮을수록 전공관련 자격증 취득 계획이 높았다. 전공관련 자격증 취득에 영향을 미치는 요인으로는 '성별', '학년(학번)', '보건의료계열 분야로의 취업 여부'가 유의하게 영향을 미치는 것으로 나타났다. 보건의료계열 취업 여부에 영향을 미치는 요인으로는 '교육과정 만족도', '전공관련 자격증 취득 계획'이 통계학적으로 유의하게 영향을 미치는 것으로 분석되었다. 결론: 보건의료관련 학과 학생들의 동일계열 취업률을 향상시키기 위해서는 전공관련 자격증 취득에 직접 간접적으로 영향을 미치는 학생들의 요구를 파악하여 교육과정에 반영하는 것이 중요할 것이다.