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A Study on the Level of MERS-related Health Literacy in High School Students
강보경(Bo-Gyeong Kang),김미점(Mi-Jum Kim),김용진(Yong-Jin Kim) 한국교원대학교 뇌기반교육연구소 2020 Brain, Digital, & Learning Vol.10 No.2
The purpose of this study is to evaluate the level of MERS (Middle East Respiratory Syndrome)-related health literacy in high school students. For this purpose, a survey questionnaire (11 questions) was developed on basic knowledge, prevention of infection and how to deal with symptoms of infection related to MERS. The survey was conducted on 491 high school students in G-province. The average score of high school students who responded to the questionnaire was 6.6 (60 points on a scale of 100 points), which is includeded in the middle level point in health literacy related to MERS. In the area of basic knowledge related to MERS, the high school students had a very high correct answer rate of 83.8%, but the correct answer ratio of knowledge on the prevention of MERS infection was 57.5% and that of the proper behavior to suspected MERS infection was 32.3%. The 35.8% of high school students who responded were distributed at the upper level in health literacy, 35.6% at the middle level, and 28.5% at the lower level. In addition, female students showed more distribution in the upper level of health literacy and less distribution in the lower level than male students. The important preventive actions against the epidemic of new respiratory diseases are practice of proper hand washing, coughing etiquette, and wearing a properly functioning mask. Therefore, this study suggests that there is a need to emphasize practical health education in the class of science (life science) and health subjects.
김재희 ( Jae-hee Kim ),강보경 ( Bo-gyeong Kang ),금진우 ( Jin-woo Kum ),조병수 ( Byung-soo Cho ),문재현 ( Jae-hyun Moon ) 한국정보처리학회 2020 한국정보처리학회 학술대회논문집 Vol.27 No.2
커피는 전 세계인들의 꾸준한 인기를 받고 있으며, 커피머신에 대한 관심이 증가하고 있다. 따라서 본 논문의 커피머신은 IAFC(Integrated Adaptive Fuzzy Clustering) 신경회로망을 이용하여 지도학습 및 비지도 학습으로 개인에게 최적화된 커피를 제공한다. 또한, 사용자는 어플리케이션을 통해 커피머신을 무선으로 조작할 수 있고 웹을 통한 관리자 모드로 데이터를 관리하고 학습시킬 수 있다.
RSA와 소인수 분해 문제에 기반한 대리서명 기법의 안전성 분석
박제홍(Je Hong Park),강보경(Bo Gyeong Kang),한재우(Jae Woo Han) 한국정보보호학회 2005 정보보호학회논문지 Vol.15 No.2
최근 Zhou, Cao 그리고 Lu는 강한 위조 불가능성을 만족하는 RSA와 소인수 분해 문제 기반의 세 가지 대리서명기법을 제안하면서 각각의 대리서명 기법들이 랜덤 오라클 모델하에서 증명가능한 안전성을 제공한다는 주장을 하였다. 본 논문에서는 이 기법들이 원 서명자로부터 위임받지 않은 사용자도 유효한 대리서명을 생성할 수 있게 한다는 점을 보임으로써 대리서명이 만족해야 하는 기본적인 안전성을 만족하지 않는다는 것을 보인다. Quite recently, Zhou, Lu and Cao proposed a proxy-protected signature scheme based on the RSA assumption and two proxy-protected schemes based on the hardness of integer factorization. They also provided a security proof for each signature scheme in the random oracle model. In this paper, we show that their schemes do not satisfy a security requirement necessary for proxy signature schemes. This results in generating proxy signatures without any permission from an original signer.
자체인증 공개키를 사용하는 threshold 대리서명 기법의 안전성 분석
박제홍(Je Hong Park),강보경(Bo Gyeong Kang),한상근(Sang Geun Hahn) 한국정보보호학회 2005 정보보호학회논문지 Vol.15 No.3
최근 다중 사용자 환경에서 안전한 대리서명을 설계하고자 하는 연구가 진행되면서, threshold 서명 방식을 대리서명에 적용한 threshold 대리서명 기법들이 제안되고 있다. 최근 Hsu와 Wu는 이산대수 문제 기반의 자체인증 공개키(Self-certified public key)를 사용하는 threshold 대리서명 기법을 제안하였다. 본 논문에서는 이 대리서명 기법이 자체인증 공개키의 취약성에 의한 원서명자의 위조 공격 (Original signer's forgery attack)에 취약함을 보임으로써 부인 방지 (nonrepudiation) 성질을 가지지 못함을 확인한다. On the research for constructing secure group-oriented proxy signature schemes, there are several proposals of threshold proxy signature schemes which combine the notions of proxy signature with threshold signature. Recently, Hsu and Wu proposed a threshold proxy signature scheme which uses a self-certified public key based on discrete logarithm problem. In this paper, we show that this scheme is vulnerable to original signer's forgery attack. So our attack provides the evidence that this scheme does not satisfy nonrepudiation property.
김봉환,한선희,신지은,김혜령,강보경,박정현,Kim, Bong-Hwan,Han, Sun-Hee,Shin, Ji-Eun,Kim, Hye-Ryeong,Kang, Bo-Gyeong,Park, Jeong-Hyeon 한국임상보건과학회 2018 한국임상보건과학회지 Vol.6 No.1
Purpose. The purpose of this study was to investigate the effect of lens color of sunglasses on stereoacuity by experiment. Methods. We conducted a stereotaxic test using a RANDOM DOT with a polarizing lens at an examination distance of 40 cm in 100 men and women aged 20 to 60 years without any specific ocular disease. Then, seven kinds of PVC color film such as yellow, black, brown, red, purple, blue and green were put on the polarizing lens and the stereoscopic examination was carried out again. Results. When the lens color of the sunglasses is yellow, black, and brown, it affects less stereoscopic effect. However, red, purple, blue, and green have much influence on stereoscopic effect. Especially, the red and purple colors affected the stereoscopic vision. In blue and green, the effect of stereoscopic vision was different according to the people. Conclusions. Depending on the lens color of the sunglasses, stereoscopic vision is affected, which can cause problems in binocular vision. Therefore, when choosing sunglass lens color, many buyers need to pay attention.