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황보성,손준혁,Bo Sung Hwang,M,D,Jun Hyuk Son,M,D 대한안과학회 2007 대한안과학회지 Vol.48 No.8
Purpose: This survey was performed to gather information about the guardians of pediatric oculoplastic patients undergoing certain medical care services in order to recommend improvements in these services. Methods: Questionnaires were distributed to guardians of pediatric oculoplastic patients who were admitted for operations to correct epiblepharon and ptosis. Completed questionnaires, which numberd 100, were then analyzed. Results: The results of this survey show that most guardians were the parents of the patient; most had a level of education higher than or equal to junior college graduation; and most were middle-class. The parents themselves had discovered their children`s disease and had a great influence on the decision to operate. Most parents took an optimistic view of the results of the operation. The higher the guardians` economic status, the more likely he or she believed that both an ophthalmic and a plastic surgeon could perform oculoplastic operations. Many guardians chose an ophthalmic clinic over a plastic surgery clinic because the likelihood of a satisfactory result is higher and because these diseases are related to visual acuity. Half of the guardians knew that there is an oculoplastic clinic at the department of ophthalmology, and many of them gathered information about oculoplastic surgery from the internet. Conclusions: Better explanations about oculoplastic diseases and more education about these diseases should be available to the guardians of patients with these diseases. Systematic publicity for the field of oculoplastic surgery is needed urgently, and the availability of accurate information and specialized medical counseling about these diseases on the internet should be increased.
황보성(Bo-sung Hwang),이임영(Im-yeong Lee) 한국정보과학회 2000 정보과학회논문지 : 시스템 및 이론 Vol.27 No.10
암호 시스템에서 가장 중요한 정보는 키 정보이다. 그러므로 공개 네트워크 상에서 비밀키의 관리는 아주 중요하다. 키가 손상되거나 유실되면 모든 정보가 유실되기 때문이다. 키 위탁 시스템이란 유사시의 상황에 대비해서 키를 특정한 위탁기관에 위탁함으로써 정보를 암호의 오용이나 키의 분실로부터 보호할 수 있는 시스템이다. 이러한 키 위탁 시스템을 이용함으로써 사용자의 키 유실이나 정부의 법 집행능력 확보를 제공할 수 있다. 일반적으로 키 위탁 시스템은 사용자와 정부사이의 요구사항들의 상충에 의해 많은 문제를 가지고 있어 기존에 발표된 키 위탁 시스템은 이러한 요구사항들을 모두 만족할 수 없었다. 따라서 본 논문에서는 Failsafe 와 Blind Decoding 방법을 기본으로한 사용자와 정부의 요구사항을 모두 만족하는 새로운 키 위탁 시스템을 제안한다. One of the most important thing in a cryptosystem is a key information. Therefore, it is important to manage private keys on large public networks. If the private key is lost or damaged, it may lost all informations. A key escrow system can recover user's key against user's key loss and provide law-enforced access to government. Generally, in a key escrow system, there are many problems on fairness between user and government. But conventional key escrow systems can not satisfy requirements of user and government. So, this paper propose a new fair key escrow system based on Failsafe and Blind Decoding that can protect of user privacy and user can not bypass key escrow system.
황보성(Bo-Sung Hwang),이임영(Im-Yeong Lee) 한국정보과학회 2000 한국정보과학회 학술발표논문집 Vol.27 No.2Ⅰ
인터넷 환경의 발달에 의해 네트워크상의 콘텐츠의 전송이 활발해 지고 있다. 그 대표적인 예가 대중적으로 일반화되어 있는 전자메일일 것이다. 하지만 전자메일이 보다 일반화되고 보안상의 위협을 제거하기 위해선 전송되는 메일에 대한 내용증명과 배달 증명이 가능해야 한다. 따라서, 본 논문에서는 먼저 내용증명과 배달증명이 가능한 기존의 방법들을 분석하고, 양사용자사이에 문서를 교환할 수 있는 새로운 방법을 제안한다.
황보성(Bo-Sung Hwang),이임영(Im-Yeong Lee) 한국정보과학회 2000 한국정보과학회 학술발표논문집 Vol.27 No.1A
무선이동통신 기술의 발달은 이용자의 수와 데이터 양의 폭발적인 증가를 가져왔다. 이러한 추세에 따라 Cellular, PCS, Radio-paging, Multimedia, Internet services를 통합하는 제 3세대 무선이동통신이 연구 중에 있다. 모든 서비스들이 무선이동통신으로 이동함에 따라 보안문제들(인증, 키교환, 키복구등)이 중요시되고 있다. 그 중에서도 범법자들의 통신에 대한 국가적 법집행능력 확보를 위한 키 복구 모델은 꼭 필요 할 것이다. 따라서, 본 논문에서는 이동통신시스템에서 효율적인 키 복구를 위한 모델을 제안하고 이에 따른 데이터 타입을 정의한다.
선천무홍채증 환자의 PAX6 유전자의 돌연변이와 임상양상
김종호,황보성,이정호,차순철,Jong Ho Kim M,D,Ph,D,Bo Sung Hwang,M,D,Jung Ho Lee M,D,Soon Cheol Cha M,D,Ph,D 대한안과학회 2008 대한안과학회지 Vol.49 No.11
Purpose: To report the PAX6 mutations and clinical features in Korean aniridia patients. Methods: Genomic DNA was isolated from 12 aniridia patients and 5 normal controls. The coding regions of the PAX6 gene were analyzed by direct sequencing of polymerase chain reaction products. The relationship between the mutational types and the ophthalmic findings from medical records was determined. Results: Mutation analysis demonstrated seven different types of mutations, five of which have not previously been reported. Notably, these mutations were confined to PD and LNK in the PAX6 gene. Although R44X and W156X were recurrent mutations, novel mutations included G18R, IVS6+1insG, A139P, A139A, and G141G. Glaucoma was found in five (42%, adult patients 30 years or older) of twelve patients, of whom four were male. Conclusions: This is the first report to identify the PAX6 gene mutations in Korean aniridia patients. Our limited data show that glaucoma was more prevalent in male and adult patients. Moreover, a patient’s age along with the PAX6 genotype might be a factor related to glaucoma in aniridia patients. J Korean Ophthalmol Soc 2008;49(11):1794-1800
문성혁,황보성,장우혁,Sung Hyuk Moon,Bo Sung Hwang,Woo Hyok Chang 대한안과학회 2008 대한안과학회지 Vol.49 No.12
Purpose: To describe the clinical course of young patients with central retinal vein occlusion (CRVO). Methods: We reviewed the records of patients 50 years or younger who presented with CRVO and who were followed up for at least 6 months. Results: The average age of the patients was 37.7 years, and the mean follow-up time was 26.3 months. Participants included 27 patients with CRVO younger than 50 years among the total 393 patients with CRVO, and the sex distribution was nearly equal; 13 patients were male and 14 patients were female. Associated systemic diseases were hypertension (8 patients), diabetes (3 patients), stroke (3 patients), and myocardial infarction (1 patient). Of the 17 patients who had no systemic disease, 8 patients had hypercholesterolemia or another hematologic abnormalities. Of the 18 eyes with non-ischemic CRVO, 10 eyes (55.6%) showed improved final visual acuities (2 or more lines). Of the 9 eyes with ischemic CRVO, only 1 eye (11.1%) showed improved visual acuity. Conclusions: Hematological examination and treatment with systemic evaluation were recommended to younger patients with CRVO. The classification of retinal ischemia of young patients as well as that of older patients could be useful for the follow-up of patients and the assessment of its progression in the future.
이상원(Sang-Won Lee),김정희(Jung-Hee Kim),황보성(Bo-Sung Hwang),전길수(Kilsoo Chun) 한국정보보호학회 2009 情報保護學會誌 Vol.19 No.6
유비쿼터스 환경으로 네트워크 환경이 진화함에 따라 다양한 기기가 정보제공의 주체로 등장하고, 이에 따른 정보보호의 중요성이 증대되고 네트워크에 참여하는 기기에 대한 신뢰된 인증체계의 필요성이 요구되고 있다. 현행 사람 중심의 공인인증체계의 안전?신뢰성에 준하는 기기인증을 위해 추진되고 있는 기기인증체계 구축현황을 소개한다.