• Communications of Mathematical Education
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• v.36 no.1
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• pp.139-170
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• 2022

In relation to differentiated mathematics education, Russia has a longer experience in research and practice than Korea. The mathematics curriculum for 10-11 grades currently in use in Russia is a level-specific curriculum and consists of a basic level and an advanced level. And in Russia mathematics textbooks for 10-11 grades are also textbooks for each level. In this study, we analyzed basic level textbook and advanced level textbook written by the same author group among the textbooks 'Algebra and Introduction of Mathematical Analysis' of the 10th grade in Russia. To analyze the main learning contents and textbook descriptions that were added in advanced level the 'real numbers' and 'complex numbers' sections were studied. The main contents of basic and advanced level textbooks for 'functions', 'trigonometric functions', 'trigonometric equations', 'conversions of trigonometric expressions', and 'derivatives', which are included in both basic and advanced textbooks were compared and analyzed, and the descriptive characteristics of the definitions and theorems presented in the two levels of textbooks were also compared and analyzed. From the results of this study, it is expected that various information on the contents of various level textbooks of mathematics, the differences between textbooks for each level, and strategies for the composition of textbooks for various level can be accumulated.

• Korean Journal of Culture and Social Issue
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• v.28 no.1
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• pp.43-59
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• 2022

This study conducted a multiple mediation analysis using sub-factors of basic psychological needs (BPNs) as mediators in the relationship between problem gambling and stress of gambling addicts to confirm that BPNs and stress, which affect gambling addiction, may be the result of problem gambling and to find effective intervention strategies. A total of 206 adults gambling addicts were screened by using CPGI. Descriptive statistics, correlation, hierarchical regression, and mediation analysis were conducted. Hierarchical regression analysis results yielded that problem gambling and sub-factors of BPNs were significant predictors of stress when controlling for gender and debt. The sub-factors of BPNs mediated the relationship between problem gambling and stress. These results indicated that BPNs and stress are not only the causes of gambling addiction but also the results from the harmful consequences of gambling addiction. The study supported the possibility of the psychological process of "Deficits of BPNs (of gambling users) → stress (of gambling users) → problem gambling → gambling addiction (of gambling addicts) → problem gambling → Deficits of BPNs (of gambling addicts) → stress (of gambling addicts)" among the variables and provided clinical implications for problem gambling counseling. Lastly, the limitations of this study and suggestions for further study were discussed.

• 정보화사회
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• s.103
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• pp.22-27
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• 1996

오는 2010년까지 우리나라 국가사회 정보화를 추진할 정보화 촉진 기본계획(안)이 정보화추진위원회에 의해 6월 중순 발표되었다. 이 기본계획(안)을 요약하여 2회에 걸쳐 싣는다.

• 정보화사회
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• s.94
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• pp.16-21
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• 1995

WTO출범에 따라 기본통신시장 개방이 불가피하게 되었다. 오는 96년 4월을 시한으로 하고 있는 기본통신개방협상에서는 각국이 양허요구서를 제출하고, 이를 갖고 협의해 동등한 수준의 시장을 오픈하게 된다. 따라서 통신시장개방은 위기이자 기회이기도 하다. 우리 협회는 그간 통신시장 개방 상황을 알아보기 위해 "WTO기본통신시장개방 설명회"를 지난 8월 17일 가졌다.

• The Journal of the Korea Contents Association
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• v.21 no.7
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• pp.558-566
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• 2021

This study was conducted to classify college students using games based on the stress, satisfaction and balance of basic psychological needs and to identify how gaming behaviors differ according to the divided clusters. This study used data of 447 college students who used games with the support of JangHoon Scholarship Foundation. As a result, the college students using games were divided into four groups with different characteristics according to stress, satisfaction and balance of basic psychological needs. Also, the level of gaming behavior was different according to the degree of satisfaction of basic psychological needs. The lower the stress and the higher the balance when the level of satisfaction was similar, the lower the level of gaming behaviors was. This study confirmed the importance of satisfactory balance of basic psychological needs as well as satisfaction, and supported the biopsychological perspective by suggesting that there are significant differences in gaming behavior according to clusters.

• Proceedings of the Korea Water Resources Association Conference
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• 2007.05a
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• pp.2034-2038
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• 2007

물관련 정보화에 대한 우리나라의 수준을 평가하기 위해 건설교통부 및 산하기관에서 구축되어 운영되고 있거나 현재 구축 중인 14개 시스템에 대한 현황, 연혁, 구조 등을 조사하였으며 미국, 영국, 일본의 정보화 관련 조직과 시스템에 대한 조사 및 분석을 통해 우리나라의 물관련 정보화가 향후 지향해야 할 방향을 제시하였다. 관련 시스템 및 정보화 환경에 대한 조사성과를 바탕으로 우리나라의 물 관련 정보화 수준을 4가지 정보화 영역별(수자원정보화, 물관리정보화, 하천정보화, 수문정보화)로 평가하였고, 기본원칙 다섯 가지(공공성, 정확성, 정시성, 다양성, 연계성)를 설정하여 정량적인 지표로 결과를 제시하였다. 분석결과, 4개 정보화 영역에 대한 기본전략을 수립할 경우 향후 목표로 하고 있는 수준에 도달하기 위해서는 정확성, 정시성, 다양성의 원칙에 부합하는 지표들에 대한 시스템에 우선 집중하여야 할 것으로 나타났으며, 다음으로는 공공성 및 연계성 부분에 집중함으로써 향후 다양한 기능을 갖춘 물관련 정보 종합시스템의 구축을 추진해야 할 것으로 나타났다.

• Journal of Korean Society of Transportation
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• v.19 no.6
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• pp.19-31
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• 2001

In this paper, 3 layered architecture model and related design guidelines are proposed, which have been actually applied in our national ITS-Architecture design. The domain architecture as the 1st layer is to structure all ITS related domains for maximizing the co-operability in national level. The logical architecture as the 2nd layer is to structure all ITS related application-systems for minimizing duplications, conflicts and dead-zones in service level and maximizing the co-operability in application-system level. The physical architecture as the 3rd layer is to structure all IT(Information Technology) related physical resources for maximizing.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.15 no.4
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• pp.135-143
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• 2015

A Multiplayer Online Game(MOG) is a game capable of supporting hundreds or thousands of players and is mostly played using the Internet. P2P(peer-to-peer) architectures for MOGs can potentially achieve high scalability, low cost, and good performance. The basic idea of many P2P-based games is to distribute the game state among peers and along with it processing, network, and storage tasks. In a primary-copy based replication scheme where any update to the object has to be first performed on the primary copy, this means distributing primary copies of objects among peers. Most multiplayer games use a primary-copy model in order to provide strong consistency control over an object. Games consist of various types of actions that have different levels of sensitivity and can be categorized according to their consistency requirements. With the appropriate consistency level of each action type within a game, this paper allows developers to choose the right trade-off between performance and consistency. The performance for P2P game architecture with the primary-copy model is evaluated through simulation experiments and analysis.

• Journal of The Korean Association For Science Education
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• v.31 no.6
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• pp.848-863
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• 2011

The purpose of this study is to explore how high school physics teachers perceive and understand fundamental physical constants as well as how they explain them and what methods they currently use in class. This study developed a questionnaire survey to recognize physics teachers' level of understanding of fundamental physical constants, which were measured by many scientists and contributed the to generation and improvement of scientific theories. Those questionnaire surveys were conducted among 130 high school physics teachers in Seoul, Gyeonggi, and Incheon. Among them, 124 participated in the survey and six were interviewed. The content of the survey consists of three parts: (i) basic questions about teachers, (ii) questions to measure the teachers' understanding of fundamental physical constants, and (iii) questions about the educational use of fundamental physical constants. The survey was distributed via e-mail, and respondents submitted their responses via e-mail as well. Semi-structured interviews were conducted for 30 minutes each, and all interviews were recorded, transcribed and analyzed twice.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.29 no.3D
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• pp.335-345
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• 2009

Generally, density is used as a measure of effectiveness (MOE) of the level of service (LOS) for the basic segment of the roadway facility, but can not express the operational condition of the roadway facility properly because there can be an error in the computed density compared with the density measured in the field. Thus, the purpose of this study is to investigate the real-time traffic characteristic data (traffic flow, speed, occupancy, headway, spacing, etc.) from the detectors installed on the mainline section of urban freeway under the study, analyze the maximum flow rate from the relationship between the real-time traffic characteristics collected, and evaluate the LOS criteria within the basic segment of the urban freeway based on the relationship between the occupancy and the v/c ratio depending on the level of service.