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산후비만에 영향을 미치는 인자에 대한 문헌적 고찰 -Medline에서 검색한 연구논문을 중심으로-
류은경,김경숙,Ryu, Eun-Kyung,Kim, Kyung-Sook 한방비만학회 2001 한방비만학회지 Vol.1 No.1
Objectives : Many women associate one or more of their pregnancies with the development of adult obesity. This study was designed to determine influencing factors on postpartum weight retention and whether the breast-feeding was available to weight loss in puerperium. Methods : Articles from the literature on 'postpartum weight retention' were examined. Results : These articles show that different factors were related with postpartum weight retention. This study suggests that moderate weight gain during pregnancy is important to prevent postpartum maternal obesity. Especially weight gain from 20 weeks to 36 weeks of pregnancy is important. Falling in depression and anxiety during postpartum period should be avoided and social support is also needed. Delivery at the financially secure status is also recommended. Sufficient physical activity and exercise are needed to prevent from postpartum weight retention. Weight loss with dieting and exercise during lactation don't have a bad influence on the growth of infants.
Efficient Unlinkable Secret Handshakes for Anonymous Communications
류은경,유기영,하금숙 보안공학연구지원센터 2010 보안공학연구논문지 Vol.7 No.6
The technique of secret handshake is used as a fundamental building block for anonymous peer-to-peer communications over untrusted networks. However, the fact that most existing schemes fail to meet unlinkability causes the use of schemes to limit for practical use. In this paper, we provide new constructions for unlinkable secret handshake, allowing arbitrary two communication parties with the same role in either one single group or multiple groups to privately authenticate each other. Compared to previous works, our techniques have much better performance in terms of both computational and communication cost, while they obtain good security results.
류은경,이성운 보안공학연구지원센터(JSE) 2015 보안공학연구논문지 Vol.12 No.1
위임기반 인증기법은 통신 당사자 간의 상호인증 및 부인방지 서비스를 동시에 제공할 수 있으며 공개키 기반구조가 필요치 않는 주요 장점을 갖는다. 본 연구에서는 최근 Tsai 등(TLW)이 제안한 위 임기반의 인증 프로토콜에 대한 보안 취약성을 분석하고 이를 해결할 수 있는 개선된 위임기반의 인 증 프로토콜을 제안한다. 제안된 프로토콜은 위장공격에 대한 저항성, 상호인증, 비연결성, 그리고 세 션키에 대한 전방향 안전성에 대한 보안 특성를 제공한다. 기존연구와 비교할 때 제안된 프로토콜은 보다 높은 보안강도를 제공할 뿐만 아니라 통신비용 측면에서도 효율적이다. The techniques of delegation-based authentication allow communication entities to authenticate each other and at the same time to support non-repudiation without imposing the public key infrasstrure requirement. This paper firstly points out some limiations of the delegation-based authentication protocol by Tsai et. al (TLW), and then introduces an improved delegation-based authentication protocol solving the problems. The protocol achieves all required security properties including resistance to impersonation attacks, mutual authentication, unlinkability, and forward secrecy. Furthermore, compared to the TLW protocol, it not only provides better security, but also is more efficient in communication cost.
On the Analysis and Improvement of a Secure Efficient Handover Authentication for Wireless Networks
류은경,유기영,이성운 보안공학연구지원센터 2013 보안공학연구논문지 Vol.10 No.3
In this paper, we briefly review that a bilinear pairing-based handover authentication scheme for wireless networks, which is recently proposed by He et al, is completely breakable and insecure, even an effortless, passive eavesdropper. We also point out that an improvement of the scheme published by the same authors is not only impractical to use in wireless settings, but also has another significant security weakness. To solve such problems we suggest an IBE-based authentication mechanism that supports a number of desirable security properties: resistance to impersonation attacks, resistance to key-compromise impersonation attacks, forward secrecy of session keys, and privacy protection. Our scheme has much better performance and security features than the improved PairHand version.
류은경,이재동 대한침구의학회 2003 대한침구의학회지 Vol.20 No.1
세포 증식과 COX-2 발현에 미치는 봉독의 효과
류은경,최은미,Ryu, Eun-Kyung,Choi, Eun-Mi 한방비만학회 2001 한방비만학회지 Vol.1 No.1
Objectives : This study was designed to investigate the effects of Fangfengtongsheng-san on obese patients. Materials and Methods : 20 patients that take Fangfengtongsheng-san during 3weeks at obesitic clinic, Conmaul Oriental Hospital from June 2000 to October 2000 were selected for this study. Results : In the change of body composition, the reduction of weight was $2.46{\pm}1.31\;kg$, the reduction of percent body fat was $1.34{\pm}0.84%$, the reduction of 8MI was $0.96{\pm}0.17$. Conclusion: This study shows that Fangfengtongsheng-san is effective on weight reduction.