야뇨증 역학조사 보고: 2개 초등학교 학생 대상

이현정,이강균,김은진,배기수,이상돈,Lee, Hyun Jung,Lee, Kang Gyoon,Kim, Eun Jin,Pai, Ki-Soo,Lee, Sang Don 대한소아청소년과학회 2008 Clinical and Experimental Pediatrics (CEP) Vol.51 No.5

Purpose : The purpose of this study was to investigate the prevalence of enuresis in association with voiding habits and socioeconomic status in elementary school children. Methods : A dynamic survey was done of 1,514 students from two elementary schools in Suwon, Korea in December 2006. Data regarding gender, age, height and weight, voiding habits, and monthly family incomes were gathered and analyzed to discover any correlation with the incidence of enuresis. The percentile value of height or weight was extrapolated from the standard population curve. Results : Among 1,514 children, 1,063 (70.2%) answered and returned the questionnaires. Overall, the prevalence of enuresis was 8.7% and there was no difference between the public (8.8%) and private school (8.7%). The family incomes of the students from the two schools differed greatly from each other, but there was no difference in the prevalence of enuresis between the two schools. Children with a habit of void-holding showed a higher prevalence of enuresis. No significant correlation was found between the prevalence of enuresis and the height and weight percentile of children. Experience with hospital visits was low among enuretic children (20.8%), suggesting that Korean parents tend to neglect treatment of enuresis for their children. The prevalence of enuresis decreased by 2.0% each year, as school children aged. Conclusion : The overall prevalence of enuresis among elementary school children in Suwon district was 8.7%. The 12.1% prevalence of enuresis at the seven years came down gradually, to be nil at the age of 13. Infrequent urination or void-holding was assumed to be one of the important factors causing enuresis in elementary school children.

단발성 결절성 매독진

이현정,박철종,이종육,조백기 ( Hyun Jeong Lee,Chul Jong Park,Jong Yuk Yi,Baik Kee Cho ) 대한피부과학회 1997 대한피부과학회지 Vol.35 No.4

Nodular lesions, especially a solitary nodule, is a rare manifestation in secondary syphilis and a few cases have been described recently. The nodular syphilid needs to be differentiated from lymphoma and a granulomatous process. In a patient previously treated for malignancy, this nodular lesion could also be clinically misdiagnosed as cutaneous metastasis. We, herein, report a case of an unusual solitary noduiar syphilid mimicking cutaneous metastasis. A 57-year-old woman patient presented with a month history of an asymptomatic erythematous telangiectatic nodul on the nose tip. She was treated for malignant melanoma on the buttock 2 years previausly. The preliminary differential diagnosis included cutaneous metastasis and a granulomatous process, but a solitary nodular syphilid was confirmed through skin biopsies and serologic tests. (Kor J Dermatol 1997;35(4): 778-780)

미국 대학교육의 위기

이현정,Lee, Hyeon-Jeong 한국대학교육협의회 1984 大學敎育 Vol.11 No.-

근본원인분석 수행을 위한 지침

이현정,최은영,옥민수,이상일,Lee, Hyeon-Jeong,Choi, Eun-Young,Ock, Min-Su,Lee, Sang-Il 한국의료질향상학회 2017 한국의료질향상학회지 Vol.23 No.1

Root cause analysis (RCA) is systematic process for identifying contributing factors and root causes. It detects system-level vulnerabilities and prevents them from occurring in the future. In many countries, RCA guidelines have been developed and used for these purposes, and various practical tools are suggested according to stages of RCA implementation. In Korea, adverse events occur in 7.2-8.3 percent of inpatients according to studies conducted in hospitals. However, frontline staffs are suffering from lack of knowledge about RCA implementation. This study introduces RCA guidelines that may be used in hospitals to improve the quality of medical care and patient safety.

소아응급의료센터에 내원한 중독 환자의 입원 결정과 관련 있는 요인 분석

이현정,조영순,장혜영,임훈,황보영,Lee, Hyun Jung,Cho, Youngsoon,Jang, Hye Young,Lim, Hoon,Hwang, Bo Young 대한임상독성학회 2018 대한임상독성학회지 Vol.16 No.1

Purpose: This study was conducted to analyze the factors associated with intoxicated patient's disposition in the pediatric emergency department. Methods: We retrospectively evaluated pediatric intoxicated patients visiting the pediatric emergency department of a hospital between January 1, 2011 and December 31, 2013. Specifically, we analyzed the association between hospitalization recommended rate and the following variables: patient age group, symptoms, intentional poisoning, decontamination and toxic level of substance. Results: We collected data from 345 patients. A high incidence was noted in the 1-4 years of age group and 10-15 years of age group. Unintentional poisoning occurred in 306 patients (88.7%). A total of 115 patients (33.3%) had symptoms when visiting. Forty three patients (12.5%) ingested cleaning substances, which was the most common agent. Potentially-toxic level was the most common level of the substance. The hospitalization recommended rate associated with visits in 2011 was 2.5 times greater than in 2012 and 2013, decontamination was 2.0 times greater than no decontamination, and poisoning with potentially-toxic substances was 2.6 times greater than poisoning with other toxic substances. Additionally, the hospitalization recommended rate associated with symptomatic patients was 2.4 times greater than that of asymptomatic patients and intentional poisoning was 2.4 times greater than unintentional poisoning. Conclusion: Patients with decontamination, ingestion of potentially-toxic substances, symptoms and intentional poisoning had increased hospitalization rates. In addition, the hospitalization rate for patients who visited in 2011 was greater than that of patients who visited in 2012 or 2013.

온라인증명서 발급시스템 보호프로파일에 관한 연구

이현정,원동호,Lee, Hyun-Jung,Won, Dong-Ho 한국정보보호학회 2011 정보보호학회논문지 Vol.21 No.6

We can use document issuance services provided by a school, bank, hospital, company, etc. either by visiting those facilities or by simply visiting their Web sites. Services available through the Internet allow us to use the same services as we do by actually going to those facilities at home or office any time. As much as it saves us time and money, there also arises a problem of information being forged on the Internet or on a printed document. There has to be security functions to deal with the problem. This paper intends to think of the possible security threats and draw out the necessary security functions that an on-line document issuance system should have based on the CC v3.1, so that anyone can use it as reference when they evaluate or introduce the system.

건식숙성을 이용한 저지방 우육의 고부가가치화

이현정,최주희,윤영권,윤요한,조철훈,Lee, Hyun Jung,Choe, Ju Hui,Yun, Yeong Gwon,Yoon, Yohan,Jo, Cheorun 한국축산식품학회 2017 축산식품과학과 산업 Vol.6 No.1

스마트공장 기술 및 표준화 동향

이현정,유상근,김용운,Lee, H.,Yoo, S.,Kim, Y.W. 한국전자통신연구원 2017 전자통신동향분석 Vol.32 No.3

전 세계적으로 인구구조의 변화, 에너지 형태의 전환, IT기술을 광범위하게 적용한 스마트제조 기술의 출현 등 제조업을 둘러싼 환경이 급변하고 있다. 독일과 미국 등 주요 제조강국들은 글로벌 금융 위기 이후 제조업의 중요성을 인식하고, 제조업 진흥을 통한 생산 효율 증대와 친환경 고객 맞춤형 생산으로 국가 산업 경쟁력을 강화하고 있다. 이러한 추세에 따라, 우리나라도 제조업 경쟁력 강화를 위해 스마트 공장과 스마트제조 관련 정부 정책 및 기술 개발의 보급과 확산을 추진 중이다. 본고에서는 국내외에서 추진 중인 스마트공장에 대한 기술 동향을 소개하고, 국내외 표준화 동향에 대하여 살펴보고자 한다.

예비 사회진출자의 졸업 후 주거에 대한 기대 및 주거비 부담에 대한 인식

이현정,Lee, Hyun-Jeong 한국주거학회 2013 한국주거학회 논문집 Vol.24 No.4

The purpose of this study was to explore college students' expectations on post-college housing and sources of finance to afford housing costs; and perception of housing cost burden. Between May 28, 2012, and June 17, 2012, a questionnaire survey was conducted to undergraduate students in university-A located in non-capital region and 465 useable responses were collected. Major findings are as follows: (1) About 60% of respondents expected to live apart from their parents or relatives within two years from college graduation; (2) Majority of respondents who expected to live apart from their parents or relatives expected to rent housing units and compact non-traditional housing types such as studio units; (3) Major source of finance the respondents expected to afford post-college housing costs was financial supports from their parents and families; (4) Housing cost burden were perceived to have influence even on job decision and respondents with lower parents' income perceived housing cost burden more influential; and (5) In spite of respondents' low financial independence to afford post-college housing costs, finding housing units in areas with relatively lower housing costs seemed not to be an important consideration when choosing post-college housing.

가시광선하에서 Cd_0.5Zn_0.5S/ZnO 광촉매를 이용한 로다민 B의 광분해 반응

이현정,진영읍,박성수,홍성수,이근대,Lee, Hyun Jung,Jin, Youngeup,Park, Seong Soo,Hong, Seong Soo,Lee, Gun Dae 한국공업화학회 2015 공업화학 Vol.26 No.3

$Cd_{0.5}Zn_{0.5}S/ZnO$ composite photocatalysts were synthesized using the precipitation method and characterized by XRD, UV-vis DRS, PL and FE-SEM. Photocatalytic activities of the materials were evaluated by measuring the degradation of rhodamine B under visible light irradiation. Contrary to ZnO, $Cd_{0.5}Zn_{0.5}S/ZnO$ materials absorb visible light as well as UV and their absorption intensities in visible region increased with increasing the $Cd_{0.5}Zn_{0.5}S$ amount. The increment in the $Cd_{0.5}Zn_{0.5}S$ content in $Cd_{0.5}Zn_{0.5}S/ZnO$ also leads to reducing the particle size and consequently increasing the specific surface area. $Cd_{0.5}Zn_{0.5}S/ZnO$ materials with the larger $Cd_{0.5}Zn_{0.5}S$ content showed the higher activity in the photocatalytic degradation of rhodamine B under visible light irradiation. Therefore, the heterojunction effect between $Cd_{0.5}Zn_{0.5}S$ and ZnO as well as the adsorption capacity seems to give important contributions to the photocatalytic activity of the $Cd_{0.5}Zn_{0.5}S/ZnO$.