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An Analysis on Sixth Graders' Recognition and Thinking of Functional Relationships - A Case Study with Geometric Growing Patterns - (초등학교 6학년 학생들의 함수적 관계 인식 및 사고 과정 분석 - 기하 패턴 탐구 상황에서의 사례연구 -)

  • Choi, JiYoung;Pang, JeongSuk
    • Journal of Educational Research in Mathematics
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    • v.24 no.2
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    • pp.205-225
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    • 2014
  • This study analyzed how two sixth graders recognized, generalized, and represented functional relationships in exploring geometric growing patterns. The results showed that at first the students had a tendency to solve the given problem using the picture in it, but later attempted to generalize the functional relationships in exploring subsequent items. The students also represented the patterns with their own methods, which in turn had an impact on the process of generalizing and applying the patterns to a related context. Given these results, this paper includes issues and implications on how to foster functional thinking ability at the elementary school.

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Estimation of the Demand Function of the Information and Communication Construction Business

  • Kwak, Jeong Ho;Lee, Jemin Justin;Lee, Han-Joo;Lee, Bong Gyou
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • v.9 no.8
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    • pp.3249-3257
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    • 2015
  • The smart convergence environment, in which all industries are converged around ICT infrastructure -- with the eventual inclusion of both industry and culture -- looms. With the emergence of new convergence industries such as smart medicine, smart cities, and smart automobiles, the ICT infrastructure is recognized as the foundation of the overall economy. As such, the importance of the next generation of information and communication construction businesses, which constructs the ICT infrastructure, is highlighted under the smart convergence paradigm environment; various multilateral policies to foster the information and communication construction business -- led by the Ministry of Science, ICT, and Future Planning -- are being implemented. Like other infrastructure industries, however, the estimation of the demand function of the information and communication construction business overall is essential for effectively establishing promotional policies for information and communication construction businesses. However, there has been no study which theoretically estimates the market demand function in the information and communication construction business thus far. The pursuit of a creative economy is a national agenda, as the significance of accelerating the ICT infrastructure is emphasized. Therefore, this paper seeks to estimate quantitatively the demand function in the information and communication construction business using empirical data and a statistical model and then to present policy implications which will aid the development of the information and communication construction business.

A Study on the Revitalization of High Performance Computing in Korea

  • Choi, Younkeun;Lee, Hyungjin;Jeong, Hyonam;Cho, Jaehyuk
    • Journal of Internet Computing and Services
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    • v.17 no.3
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    • pp.129-136
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    • 2016
  • Crucial aspects to successfully realizing the re-emergence of a contemporary and sustainable supercomputing community in South Korea will involve the devoted efforts and support from key government and R&D organizations. We suggest various supplementation plans regarding the roles of support for the statutory plan. This includes the committee and the plans which are often missing necessary support systems that help competent ministries to plan properly according to the missions of the research center. This dissertation suggests that adjustment in the HPC trends will depend upon exposing and correcting problems in the law as well as overall improvement of the law. Also, the total development of a super computing market is necessary. The results of these guidelines will create a spread of demand for supercomputing for national IT resource sharing, and will foster the development of supercomputer specialists worldwide. Other major end results include significant increases in research productivity and increased rates of product development.

Association between Educational Level of Parents and Adolescent Depression Feeling: Based on 14th Korean Youth Health Behavior Survey (부모의 학력수준과 우울감 사이의 연관성: 제14기(2018년) 청소년건강행태조사 자료를 이용하여)

  • Kang, yung Mo;Yoon, Chae Yeon;Kim, Ye Ji;Kim, Jae-Hyun
    • Health Policy and Management
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    • v.29 no.4
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    • pp.422-430
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    • 2019
  • Background: This study aimed to demonstrate the association between the education level of parents and adolescent depression feeling. Methods: We used the chi-square test and the multiple logistic regression model to analyze the data of the "Korean Youth Health Behavior Survey in 2018" (n=43,220) conducted by the Korea Centers for Disease Control and Prevention. Results: As a result of the analysis, a group whose parents' education level is 'above the university graduation (including the graduation of the college)' had statistically significant experience of depression than a group whose parents' education level is 'high school graduation.' Conclusion: When preparing a policy on adolescent depression feeling, we need to consider the association between the education level of parents and adolescent depression feeling. Especially, a higher level of education of parents needs attention and management to foster positive mental health rather than excessive academic pressure, especially in the parent-child relationship of the same gender.

Study of the Drinking Environment, Drinking Culture and Behavior for the Development of an Alcohol Intervention Program (음주환경과 음주문화·행태에 따른 음주 중재 프로그램 개발)

  • Lee, Hyo Young;Im, Hyuk;Kim, Hye Sook;Kim, Min Jung;Yoon, Jin Sun
    • The Korean Journal of Health Service Management
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    • v.14 no.1
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    • pp.177-194
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    • 2020
  • Objectives: This study aims to identify the drinking environment and drinking culture in an area with high drinking rates in order to provide the basis for the development of a drinking intervention program. Methods: Forty-six local experts and residents participated in focus group interviews that mainly asked questions about the drinking environment in the community, the culture and behavior of drinking, and the community efforts to reduce the drinking rates. The interviews of four groups were transcribed and analyzed. Results: Drinking environments and cultures were categorized into the following five themes: high physical accessibility to drinking, type of housing and long duration of stay in the same region, drinking-friendly culture and daily life events, various reasons and patterns of drinking, and lack of health (education) programs. Conclusions: Community efforts are required to make the residents aware of how the local environment is related to the high drinking rates in their community. Further, the study underlines the need for the community to make efforts to create an environment where drinking rates are low, and foster a diverse leisure culture.

The Impacts of Social and Cultural Capital on the Academic Achievement of Children in Out-of-Home Care (가정외보호아동의 사회적 자본과 문화적 자본이 학업성취에 미치는 영향)

  • Kang, Hyun-Ah;Woo, Seok-Jin;Kang, Hyun-Ju
    • Journal of the Korean Home Economics Association
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    • v.50 no.5
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    • pp.25-38
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    • 2012
  • Drawing on social and cultural capital theory, the study investigates the influences of social capital and cultural capital on the academic achievement of children in out-of-home care. We collected data from 494 children living in out-of-home services, including institutional care facilities, foster care homes, and group homes. To analyze the collected data, a multiple regression analysis method was used. In addition, the IV (instrumental-variables) estimation was utilized to rule out the possibility of reverse causality. The level of children's social capital was measured through children's relationships with parents and friends, parental monitoring, etc. The level of children's cultural capital was measured by their cultural activities, such as going to museums, and playing musical instruments. Children's personal characteristics and placement history in out-of-home services were used as control variables. We found that among personal characteristic variables, self-esteem, depression and anxiety, and delinquency affected the academic achievement of the children. Cultural capital, but not social capital, positively affected the level of academic achievement of the children. Based on the study results, implications for child welfare practice were discussed.

Mothers′ Child-Rearing Attitude (어머니의 아동 양육태도)

  • Kim Shin-Jeong;Kim Young-Hee;Kim Kye-Sook
    • Child Health Nursing Research
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    • v.9 no.4
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    • pp.392-398
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    • 2003
  • Purpose: This study was carried out to provide the theoretical understanding of mothers' child-rearing attitude and the eventual purpose was to contribute to the development of nursing interventions to help mothers have love-automous childrearing attitudes which will foster child development and enhance harmonious child-mother relationship. Method: The data were collected from April to september, 2002 by questionnaires with 130 married child-rearing mothers. Mothers' child-rearing attitudes were rated on the 5-point sclae of Schaefer's Maternal Behavior Research Instrument(MBRI). Result: 1) In love vs hostility and autonomy vs control, the score of love(3.79) is higher than hostility(2.64) and the score of autonomy(3.54) is higher than control(2.58). 2) In love- autonomous child-rearing attitude(3.69) is highest than hostility-control(2.75), love-control(2.70), hostility-autonomous (2.54) child-rearing attitude and the direction is autonomy→love. Conclusion: Nurses assess mothers' child-rearing attitude and provide teaching and counselling to help mothers to form love-autonomous child-rearing attitude.

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Management and Marketing Improvement for Folk Vegetables in Chungnam Province (충남지역(忠南地域) 민속채소(民俗菜蔬)의 경영(經營) 및 유통개선(流通改善)에 관(關)한 연구(硏究))

  • Lee, Dong-Jae;Kim, Chul-Ho
    • Korean Journal of Agricultural Science
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    • v.25 no.2
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    • pp.321-328
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    • 1998
  • This study was performed to provide reference materials for the vegetable cultivating farmhouses by investigating profit and marketing situation for the folk vegetables. The survey areas covered 10 cities and counties including Kumsan, 72 farmhouses, and 8 crops including buffterbur and wild rocambole. As a result, the cultivated area of folk vegetables was increased as much as 13.7%, however, marketing cost was higher than that of horticultural crops, because they were not accessed to wholesale market. It was that the optimal period to sell the folk vegetables was shown like Jan. - Feb. for butterbur and day lily, Nov. - Dec. for wild rocambole, and Oct. - Nov. for kind of lettuce respectively. As the result of analyzing economical efficiency, the net profit per 0.1 ha was amounted to 3,438,000 won for butterbur, 3.291,000 won for wild rocambole 1,712,000 won for day lily, and 1,464,000 won for fatsia shoots. Besides, these four crops occupied more than 60% in cultivation area, and their profit was high. Therefore, it is necessary to foster them with special crops in Chnugnam area. The crops that require more labor time were such crops as 632.9 hours for day lily, 584.3 hours for butterbur, and 409.2 hours for fatsia shoots, whereas the crops that required less labor time were such field crops as 219.2 hours for fragrant edible wild aster and 233.8 hours for kind of lettuce.

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A Study on prediction of patent big data using supervised learning with dimension reduction model (지도학습 기반의 차원축소 모델을 이용한 특허 빅데이터 예측에 관한 연구)

  • Lee, Juhyun;Lee, Junseok;Kang, Jiho;Park, Sangsung;Jang, Dongsik;Hong, Sungwook;Kim, Sunyoung
    • Journal of Korea Society of Digital Industry and Information Management
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    • v.15 no.4
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    • pp.41-49
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    • 2019
  • Patents are system to promote the development of industry by disclosing technology. The importance of recent patent is being emphasized. For this reason, companies apply for many patents. And they analyze the patent. Patent analysis helps to protect and foster their technology. Previously this method has been carried out by experts. Expert-based patent analysis, however, has the disadvantage of being time-consuming and expensive. Consequently, we try to solve this problems by developing prediction model. Therefore, this paper proposes a data-based patent analysis method using quantitative indicator and textual information. We confirmed the practical applicability of the proposed method through 1,831 autonomous vehicle patents. As a result, it was possible to confirmed that safety and lane detection related technologies are important.

A Study on the Development of the Teaching Model for Environmental Education (환경교육을 위한 수업모형 개발에 관한 연구)

  • 최운식;윤성희
    • Hwankyungkyoyuk
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    • v.12 no.1
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    • pp.378-390
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    • 1999
  • The purpose of this study is to investigate what are objects in environmental education and to develop the teaching model for environmental education. The major objects of environmental education is how to teach students who not only take knowledge/skill, but also change their behavior with responsibility for environment. In order to change students' behaviors for environment, Hungerford recommended that teachers have teaching strategies with recognition, evaluation, and adaptation. Also, McCarthy developed teaching model to engage immediate personal meaning, to raise intellectual awareness of a concept, to enhance skills that students can use in their lives, and to foster personal adaptations. Based on the Hungerford's teaching strategies, and Mccarthy's 4MAT system, a teaching model is developed to encourage thinking skill, problem-solving ability, interesting, and participation in the class. The basic steps of the teaching model in this study are experience/recognition, knowledge/skill, evaluation, and adaptation/new experience and 8 sub-steps for instructional methodologies are developed to match of all students' learning style types in a classroom. This model will make it possible to raise the efficiency of instruction, and contribute to changing students who have responsibilities for their environmental behaviors. This model will be supplemented in schools, and applied to developing other instructional issues.

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