Relationship between Alcohol Use Disorders Identification Test Fractional Anisotropy Value of Diffusion Tensor Image in Brain White Matter Region

이치형,김경립,곽종혁,Lee, Chi Hyung,Kim, Gyeong Rip,Kwak, Jong Hyeok The Korean Society of Radiology 2022 한국방사선학회 논문지 Vol.16 No.5

Magnetic resonance diffusion tensor imaging (DTI) has revealed the disruption of brain white matter microstructure in normal aging and alcoholism undetectable with conventional structural MR imaging. we plan to analyze the FA measurements of the ROI of dangerous drinkers selected from Alcohol Use Disorders Identification Test (AUDIT) and Tract-Based Spatial Statics (TBSS) tool was used to extract FA values in the ROI from the image acquired through the pre-processing process. TBSS has a higher sensitivity of the FA value and MD value in the white matter than the brain gray matter, and has the advantage of quantitatively deriving the unlimited degree of brain nerve fibers, and more specialized in the brain white matter. We plan to analyze the fractional anisotropy (FA) measurement value for damage by selecting the center of the anatomical structure of the white matter region of the brain with high anisotropy among the brain neural networks that are particularly vulnerable to alcohol as the region of interest (ROI). In this study, we expected that alcohol causes damage to the brain white matter microstructure from FA value in various areas including both Choroid plexus. Especially, In the case of the moderate drunker, the mean value of FA in Lt, Rt. Choroid plexus was 0.2831 and 0.2872, whereas, in the case of the severe drunker, the mean value of FA was 0.1972 and 0.1936. We found that the higher the score on the AUDIT scale, the lower the FA value in ROI region of the brain white matter. Using the AUDIT scale, the guideline for the FA value of DTI can be presented, and it is possible to select a significant number of potentially severe drinkers. In other words, AUDIT was proved as useful tool in screening and discrimination of severe drunker through DTI.

칸토어 ‘무한’(無限)과의 비교를 통해 본 원효 ‘부정’(不定)의 교육학적 의미

이치형(Lee Chi-Hyung) 한국교육철학회 2020 교육철학 Vol.75 No.-

The purpose of this article is to draw educational implications by comparing and examining the infiniteness of Cantor, especially the practical concept and the denial of Wonhyo, that is, the indeterminate concept. Cantor presented the transfinite number that can be treated as a closed system like a number, away from the potential infinite concept that has been going on since Aristotle, and based on this, it presented the concept of practical limit based on the size comparison in infinity. Here, an unresolved paradox of continuum hypothesis occurs, which is called Cantor s paradox, which cantor failed to solve and eventually continued his unhappy life. In contrast, Wonhyo also faced an infinite problem, a paradox, but he concluded it as a ‘negative’ of ‘indetermination’ and lived a life of positivity. This fundamental difference should be seen as the fact that his logic based on his ‘One mind’, which thoroughly carried out the area of intuition in the face of the limitations of inferential thought, worked, and this is differentiated from Cantor. Through this comparative study, this study tried to suggest the meaning of inferential thinking in educational sense and intuitive thinking to supplement it.

원효 ‘삼세·아려야식설’ 창안의 교육학적 의미

이치형(Lee, Chi Hyung) 한국교육철학회 2021 교육철학 Vol.80 No.-

The purpose of this article is to interpret Wonhyo s three subtle[三細]·ālaya vijñāna[阿賴耶識] theory educationally. Thus, this study deduced what educational implications are by grasping Wonhyo s theory of mind from a more matched point of view. According to this paper, education is the most important thing to cultivate the mind, and it should be the reason why students acquire knowledge of beautiful mind, and it is related to not only cultivating their own life but also grasping the fundamental meaning of their job in relation to their job more directly. Thus, it was found that students need to approach their jobs from the perspective of a great mind rather than a child while learning at school.

교사의 당사자적 자세와 간접전달 : 메타프락시스적 관점

이치형(Chi-Hyung Lee) 한국도덕교육학회 2020 道德敎育硏究 Vol.32 No.3

이 글의 목적은 메타프락시스적 관점에서 교과와 교사, 그리고 교사와 학생의 관련을 모색하여 유기적으로 설명하는 데에 그 목적이 있다. 여기서 ‘유기적’이라는 말은 마치 살아있는 생명체가 그러하듯이, 하나의 요소라도 배제되면, ‘교육이라고 하는 생명체’에 치명적인 타격이 불가피하다는 것을 가리킨다. 그럼에도 불구하고, 특별히 교사의 존재는 교과와 교사, 교사와 학생의 관련에 있어서 ‘핵심적인 지위’를 차지한다. 그도 그럴 것이, 교사는 교과를 내면화하여 ‘자득지’(自得知)에 있는 사람이며, 한편으로 자신이 내면화한 교과―총체로서의 세계―를 온몸을 활용하여 후세대에 전수해주는 역할을 하는 사람이기 때문이다. 이러한 교사의 자득의 측면은 특히 ‘당사자적 자세’에 의해 학생에게 전달(간접전달)될 수 있다. 그리하여 이들의 ‘유기적 관련’에 보다 근본적으로 ‘숨을 불어넣는 존재’는 교사라고 할 수 있으며, 교사의 실존 또는 그의 삶의 태도, 즉 ‘당사자적 자세’는 온 인류의 존재 근거를 확립하는 중차대한 일이라는 점을 밝혀 보았다. The purpose of this study is to explore the relationship between subjects, teachers, and students from the metapraxis perspective and to explain them organically. Here, the term ‘organic’ refers to the inevitable blow to life, which is called education, if one element is excluded, as if it were living life. Nevertheless, the existence of teachers in particular takes a key position in the relation between subjects and teachers, teachers and students. He also does so because the teacher is a person who internalizes the subject and is in the self-acceptance, and on the other hand, he plays a role of transferring the internalized subject - the world as a whole - to the later generations using the whole body and his spirit. This aspect of teacher s self-interest can be delivered (indirectly) to students, especially by ‘the standpoint of personal participation’. Thus, the existence that breathes more fundamentally into their organic relation can be said to be a teacher, and the existence of the teacher or his attitude of life, that is, the ‘the standpoint of personal participation’, is a serious thing to establish the basis of existence of the whole human race.

스마트폰에서 제공되는 실시간 방송서비스 규제방안에 관한 연구 - CJ 티빙서비스를 중심으로

이치형 ( Chi Hyung Lee ),박성원 ( Seong Won Park ) 한국인터넷정보학회 2012 인터넷정보학회논문지 Vol.13 No.6

스마트폰에서 제공되는 방송서비스에 대해 지상파 혹은 케이블 수준의 규제를 적용해야 한다는 입장과 별도의 규제가 필요하지 않다는 입장이 대립하고 있다. 본 연구는 CJ 티빙서비스를 중심으로 스마트폰에서 제공되는 방송서비스에 대해 규제 방안을 제안하는 것이 목적이다. 연구를 위해 방송 및 콘텐츠 기업, 규제기관, 정책연구소, 컨설팅기업 간부급 14명으로 구성된 전문가 인터뷰를 실시했다. 인터뷰 분석 결과 스마트폰 방송서비스는 콘텐츠 형식으로 보면 방송의 형태를 띠고 있지만 당분간 규제가 필요 없다는 것이 공통적인 의견이다. 근거로 규제의 실효성이 낮고, 대부분의 콘텐츠가 이미 다른 플랫폼에서 검증 받았으며, 서비스의 사회적 영향력이 아직 미약하기 때문이다. 따라서 당분간 스마트폰 방송서비스는 인터넷과 같이 자율규제가 적합하며, 현행법에서 전기통신사업법의 부가통신사업으로 분류하는 것이 타당하다고 결론 내렸다. There is a growing controversy on whether and how to regulate real-time broadcasting services carried on smartphone. Some advocates strict regulation on them but the others minimal regulation. This study aims to suggest guiding rules for how to regulate broadcasting services in smartphone. For this, the study interviewed fourteen (14) executives of broadcasting companies, content providers, policy research center and regulatory body. The analysis indicates that linear channel service in smartphone is similar in form to traditional broadcasting but they should not be regulated at this moment. The supporting reasons are 1) regulating them is technically not effective, 2) they were already regulated in their primary service platforms, 3) they don`t have a significant impact on a society. Consequently, the study suggests that the service providers are categorized as value added common carriers as defined in the Telecommunication Business Act.

해외유료방송의 시장집중과 시장성과 간의 관계분석을 통한 미디어산업 규제 및 정책 방향

이치형 ( Chi Hyung Lee ),이봉규 ( Bong Gyou Lee ) 한국인터넷정보학회 2011 인터넷정보학회논문지 Vol.12 No.4

본 연구의 목적은 해외유료방송의 시장집중과 시장성과 간의 실증적인 관계분석을 통해 국내 미디어산업의 바람직한 규제 및 정책 방향을 고찰해 보는 것이다. 세계적으로 방송통신이 융합되어 규제가 완화되고 있음에도 불구하고, 국내의 경우에는 미디어 시장이 특정사업자에 집중될 경우 시장 비효율이 발생하고 다양성이 훼손된다는 전제 하에, 여전히 시장집중현상을 집중적으로 규제하고 있다. 본 연구에서는 전 세계 17개 유료방송시장을 대상으로 1위 사업자의 시장점유 정도가 시장가격과 서비스 보급에 영향을 미치는지 분석하였다. 조사결과 시장집중 현상이 초래되어도 가격이 상향되거나 서비스 보급이 지연되는 않는 것으로 분석되었다. 본 연구결과, 시장성과에 영향을 주는 요인들이 다각화되었기 때문에 단순히 시장집중만을 규제하면 기술혁신 침체와 같은 부작용도 발생하는 것을 포함하여 다양한 시사점들이 도출되었다. The purpose of this study is to provide relevant directions of media industry regulation and policy by analyzing the relationship between market concentration and performance in global pay TV markets. The market concentration has long been regulated in the media industry under the belief that it harms market efficiency and cultural diversity. As the global media market is undergoing significant chance accelerated by the advance of technology, it is necessary to examine the feasibility of this long myth. The data are collected from global 17 pay TV markets and analyzed to see whether the highly concentrated markets by a single player result in higher price and slower service penetration. The result indicates that the price is not escalated and the penetration is not limited even in the markets where a dominant player takes high market share. It implies that more diverse factors other than the market concentration affect the market performance and that maintaining strict regulation of the market concentration is likely to have negative effect on technology innovation.

모바일 소셜 네트워크 게임 사용자의 지속적인 게임 사용의도에 관한 정성적 연구

이치형(Chi Hyung Lee),박성원(Seong won Park) 한국컴퓨터게임학회 2013 한국컴퓨터게임학회논문지 Vol.26 No.4

Users of smrtphone based mobile social network games are rapidly increasing. However, there are few researches for smartphone based mobile social network games. In this paper, we conducted a qualitative study in order to understand the continual usage intention of mobile social network game from indepth interview. As a result, passing time, hedonic valuem social value, challenge/competition, perceived enjoyment, and social interaction were found to have positive effects on continuous usage intention of smartphone based mobile social network game. And network quality, difficulties of game, and social interaction were found to have negative effects on continuous usage intention of smartphone based mobile social network game. This study provides practical suggestions for developers of social network game to invigorate the smart-phone based social network game market, such as improved additional investment for simple game interface, easy game rule, additional interactive services.

신념의 형성과 사육신의 충절: 도덕교육의 성격과 과제에 고함

이치형(Chi-Hyung Lee) 한국도덕교육학회 2021 道德敎育硏究 Vol.33 No.2

이 글의 목적은 단재 신채호의 민족사학적 관점을 통해 死六臣의 정신을 탐색하여 도덕교육의 성격과 과제에 대한 함의를 드러내는 데에 있다. 본 연구에 따르면, 도덕교육의 이론적 측면은 반드시 실제적 측면과 더불어 그 원리가 도출될 수밖에 없으며, 그렇게 될 때 현실을 살아가는 ‘삶의 이론’이 될 수 있다는 점이다. 따라서 도덕교육의 성격은 삶의 이론으로서의 역할을 수행해야 하는 과제를 떠안게 되며, 이는 곧 도덕교육에서는 이론과 실제가 별개가 아닌 ‘미묘한 균형’을 바탕으로 전개된다는 점을 의미하는 것으로 해석된다. 그리하여 도덕교육을 연구하는 사람은 곧 그의 삶이 매순간 도덕교육의 방법적 원리에 의해 뒷받침되는 실천적 삶을 살아가도록 한다는 자기규제[자율]의 의미를 지니게 되며, 이는 곧 ‘실재에의 登程’의 삶을 조금씩 실천하면서 살아간다는 것과 별개의 것이 아님이 확인된다. The purpose of this article is to explore the spirit of the deceased through the ethnic historical perspective of Danjae Shin Chae-ho, revealing the implications of moral education and its challenges. According to this study, the theoretical aspect of moral educa―tion must be derived along with the practical aspect, and when it does, it can be a theory of life to live reality. Therefore, the nature of moral education takes on the task of performing its role as a theory of life, which is interpreted as meaning that theory and practice develop on the basis of exquisite balance rather than separately in moral education. Therefore, a person who studies moral education soon has the meaning of self-regulation (autonomy) that his life is supported by the methodical principles of moral education every moment, which is not separate from practicing the life of departing to reality.

개방형 콘텐츠 유통환경에서 시장집중 규제에 대한 비판적 고찰

이치형(Chi Hyung Lee),이중만(Jungmann Lee),이종원(Jongwon Lee) 한국콘텐츠학회 2012 한국콘텐츠학회논문지 Vol.12 No.11

전통적으로 미디어 시장은 사업자수가 적고 특정 미디어의 영향력이 크기 때문에 시장집중을 엄격하게 규제하여 왔다. 하지만 미디어에 개방형 인터넷이 도입됨에 따라 미디어 규제의 근거인 희소성과 침투성 개념이 약해지고 있다. 본 연구는 미디어 융합 환경에서 기존 시장집중 규제의 문제점을 비판적으로 평가한다. 개방형 콘텐츠 유통구조에서 시장성과는 시장구조보다 사업자행위에 더 영향을 받으며, 수직결합이 서비스 혁신의 수단으로 부각되고 있고, 시장획정이 끊임없이 변하기 때문에 시장집중 측정이 어려워지고 있다. 따라서 시장집중은 단순히 사업자의 시장점유율과 같은 구조적 요인으로만 규제할 것이 아니라 시장비효율과 다양성을 저해하는 사업자 행위를 중심으로 규제하는 것이 더 적합하다는 결론이다. Government has strictly regulated the concentration of the media market because the number of broadcasters was traditionally limited and they had significant influence on public. However as the media market converges with Internets open architecture, scarcity and pervasiveness are losing their roles in justifying media regulation. This article examines market convergence and its impact on market concentration, and criticizes the current concentration regulation. The study indicates that market performance are much governed by firms competitive actions than market structure, and that vertical integration contributes to service innovations, and that horizontal concentration makes it difficult to measure due to its even-changing market definition. Therefore, the regulation for market concentration should shift its focus from firms market share to broadcasters unfair acts driving market inefficiency and hurting content diversity.

Design of filter pack and well screen for the horizontal gallery of radial collector well considering soil distribution in riverside alluvium

이치형(Chi-hyung Lee),이성규(Seong-Kyu Lee),김민(Min Kim),박혁진(Hyuck-Jin Park),김규범(Gyoo-Bum Kim) 대한지질학회 2015 지질학회지 Vol.51 No.4