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눈꽃동충하초 (Paecilmyces japonica DGUM 32001) 균사배양물의 항암 효과에 관한 유세포분석학적연구
이지선(Ji-Seon Lee),이임선(Im Seon Lee),정경수(Kyeong-Soo Chung),김용해(Yong Hae Kim),한영환(Young Hwan Han),이만형(Man Hyong Lee) 대한약학회 2001 약학회지 Vol.45 No.1
Protein-polysaccharide fractions, PJ-3 and PJ-4, were prepared from mucelial culture filtrate of an insect fungus, Paecilomyces Japonica DGUM 32--1, and subjected to a flow cytomerical analysis for their in vivo antitumor and immunomodulating activity in ICR mice. When I.p. injected once daily for seven days at 100mg/kg, PJ-4 exerted a strong antitumor activity, showing the growth inhibition ratio of 85.1% against I.p.implanted sarcoma 180 cells, while PJ-3 showed only a weak activity. Moreover, PJ-4 significantly increased the expression level of CD25 (IL-2R alpha-chain) as well as forward scatter (FSC) values of splenic CD8+ T cells. It is also noteworthy that PJ-4 strongly induced the peritoneal exudate cells in the same experiment. In an in virto study, PJ-4 slightly inhibited the growth of sarcoma 180 sells at toe consentration of 50 concentration of 50ug/ml or higher. These results strongly suggest that PJ-4 might exert its antitumor activity through immunostimulation as well as direct inhibitory activity on the tumor cells.
다문화가정 아동과 일반가정 아동의 부모화 경험이 내재화 문제에 미치는 영향 비교
이지선(Ji Seon Lee),김정민(Jung Min Kim) 한국아동학회 2019 아동학회지 Vol.40 No.2
Objectives: The objective of this study is to identify, compare, and analyze children`s parentification between multicultural families and monocultural families, It also aims to examine internalized shame and the structural relationship between self-differentiation and internalized problems and to provide useful basic data to education and counseling sites. Methods: Data from a total of 725 people, including 367 children from multicultural families and 358 children from monocultural families were included in the final analysis. SPSS 24.0 and AMOS 22.0 were used to statistically process t-verification, correlations, and perform a structural equation model (SEM) analysis. Results: First, the negative effect of children`s parentification in multicultural families on internalized problems was found to be statistically significant, while the effect of children`s parentification in monocultural families on internalized problems was not significant. Second, it was found that the problems of children from multicultural families were partially mediated, and those of children from monocultural families were fully mediated, by internalized shame in relation to parentification and internalized problems, Third, it was found that the problems of children from multicultural families were partially mediated, and those of children from monocultural families were fully mediated, by self-differentiation in relation to parentification and internalized problems. Conclusions: The results of this study suggest that there is a need to consider the cultural differences of children when managing children’s parentification in the counseling sphere, and they also show that an approach to alleviate the shame of parentalized children and improve their level of selfdifferentiation may be effective in solving internalized problems.
e-러닝: m-러닝 2 ; 학습자 요구 분석에 따른 스마트폰 어휘 학습용 어플리케이션의 구현
이지선 ( Ji Seon Lee ),최재혁 ( Jae Hyuk Choi ) 한국컴퓨터교육학회 2011 한국컴퓨터교육학회 학술발표대회논문집 Vol.15 No.2
스마트폰의 보급으로 많은 교육용 어플리케이션이 개발되고 있다. 그러나 학습자들의 요구가 반영하는 데에 대한 연구가 부족하다. 이에 본 본문에서는 어휘 학습용 어플리케이션을 구현하기 위해 기존 어플리케이션을 이용하여 학습자들의 요구를 분석하고, 분석결과를 반영하여 어휘 학습용 어플리케이션을 구현하였다.
IPTV의 미디어 서비스 보호를 위한 지문 인식 기반의 1-out-of- n 접근 통제 기법
이지선(Ji-Seon Lee),이현숙(Hyun Sook Rhee),김효동(Hyo Dong Kim) 한국통신학회 2010 韓國通信學會論文誌 Vol.35 No.4b
IPTV는 방송과 통신이 융합된 서비스로 송신자는 IP망을 이용하여 암호화된 콘텐츠를 멀티캐스트 방식으로 전송하고 정당한 가입자만이 인증 절차를 거친 후에 이를 복호화하여 콘텐츠를 이용할 수 있다. 이 때 가입자의 권한을 보호하기 위하여 패스워드를 기반으로 한 셋톱박스와 스마트카드 간의 인증 프로토콜이 주로 이용된다. 이 논문은 임의의 조직에서 구성원들의 지문정보를 기반으로 구성원 중 누구라도 한 사람만 있으면 암호화된 콘텐츠를 볼 수 있도록 하는 지문정보 기반의 1-out-of-n 인증 기법을 제안한다. 제안하는 기법은 패스워드와 스마트카드의 내용이 노출되더라도 정당한 지문 정보를 제공할 수 있어야만 인증받을 수 있는 디지털 방송에서 미디어 서비스 보호를 위한 지문 정보 기반의 셋톱박스와 스마트카드 간의 인증 기법이다. IPTV(Internet Protocol Television) is an emerging technology in which telecommunication and broadcasting technologies are converged. IPTV service providers usually multicast scrambled contents. And only legitimate subscribers who pass the access control can de-scramble and use the contents. In order to ensure revenues, providers oftentimes employ password-based authentication protocols that ensure secure authentication processes between set-top box and smart card. In this paper, we propose a fingerprint-based 1-out-of-n authentication protocol which provides convenient and more secure authentication process in some organizational environments. The proposed scheme shows that only those who provide legitimate fingerprint information can be authenticated even in a situation that both password and smart card are compromised.