심한 급성망막괴사에서 망막박리 예방을 위해 시행한 유리체절제술 및 실리콘기름 주입술의 효과

정자영,이태곤,Ja Young Jung,Tae Gon Lee,M,D 대한안과학회 2008 대한안과학회지 Vol.49 No.3

`Purpose: We report the results in two patients received prophylactic surgery to prevent retinal detachment in the severe acute retinal necrosis. Case summary: Two patients in whom the presumptive diagnosis of the severe acute retinal necrosis were concomitantly treated with antiviral agents, systemic steroids and anti?platelet therapy. We performed vitrectomy and silicone oil tamponade as the prophylactic surgical procedure for retinal detachments. The retinas remained attached in all patients over a follow?up periods. Conclusions: Retinal detachment secondary to acute retinal necrosis has a complex nature and usually results in severe visual loss. A combination of vitrectomy and silicone oil tamponade may be effective prophylaxes against retinal detachment in acute retinal necrosis. `

공정조성 SnPb Solder 합금의 부식 및 Electrochemical Migration 특성에 미치는 SO₄^2- 이온의 영향

정자영,유영란,이신복,김영식,주영창,박영배,Jung, Ja-Young,Yoo, Young-Ran,Lee, Shin-Bok,Kim, Young-Sik,Joo, Young-Chang,Park, Young-Bae 한국재료학회 2007 한국재료학회지 Vol.17 No.1

Electrochemical migration phenomenon is correlated with ionization of anode electrode, and ionization of anode metal has similar mechanism with corrosion phenomenon. In this work, in-situ water drop test and evaluation of corrosion characteristics for SnPb solder alloys in $Na_2SO_4$ solutions were carried out to understand the fundamental electrochemical migration characteristics and to correlate each other. It was revealed that electrochemical migration behavior of SnPb solder alloys was closely related to the corrosion characteristics, and Sn Ivas primarily ionized in ${SO_4}{^2-}$ solutions. The quality of passive film formed at film surface seems to be critical not only for corrosion resistance but also for electrochemical migration resistance of solder alloys.

태아발육지연 임신에서 산소농도가 영양배엽세포의 telomerase 활성도에 미치는 영향

정영내(Young Nae Jung),김세광(Sei Kwang Kim),정현철(Hyun Cheol Chung),박규현(Kyu Hyun Park),김창한(Chang Han Kim),장영건(Young Kwon Chang),권자영(Ja Young Kwon),김성훈(Sung Hun Kim),노성일(Sung Il Roh),조동제(Dong Jae Cho) 대한산부인과학회 2001 Obstetrics & Gynecology Science Vol.44 No.8

N/A Objective : To observe the difference in telomerase activity (TA) expression in the placenta between fetal growth restriction (FGR) with preeclampsia and those without and to evaluate the effect of oxygen concentration on the TA expression in the trophoblastic cells. Methods : Telomerase activity was measured in 48 (normal pregnancies, 16; preeclampsia with FGR, 15; normotensive FGR, 17) placentas which were obtained between 32 and 41 weeks' gestations. Trophoblastic cells were extracted from 8 chorionic villi samples obtained from 8-10 weeks' placenta and were cultured in either 2%, 8%, and 20% oxygen atmosphere. Then TA was examined by using telomeric repeat amplification protocol (TRAP) assay. Results : During 3rd trimester of pregnancy, exhibited TA expression in normal pregnancy, FGR complicated by preeclampsia, and normotensive FGR groups were 11 of 16 (68.8%), 4 of 15 (26.7%), and 4 of 17 (23.5%), respectively. Significantly lower level of TA was detected in the FGR group compared to the normal pregnancies (p=0.009), whereas within FGR pregnancies, presence of preeclampsia did not seem to have statistically significant effect on TA expression. TA expression levels were measured by optical density in trophoblasts cultured under various oxygen concentration which revealed that significantly higher TA was exhibited in the cells cultured in 2% oxygen compared to 8% and 20% (p<0.001). However no significant difference was noted in TA between cells cultured in 8% and 20% oxygen. Conclusion : Decreased TA in the placenta from pregnancies with FGR was noted regardless of presence of preeclampsia indicating a probable correlation between FGR and placental senescence. Since increased TA was noted in trophoblastic cells that were cultured in hypoxic condition, we could speculate that the intervillous oxygen tension during early-stage placental development plays a certain role in the placental degeneration in pregnancies complicated by FGR and preeclampsia.

혈관줄무늬망막병증에서 발생한 맥락막신생혈관의 광역학치료 6예

정자영,조성원,이재흥,Ja Young Jung,Sung Won Cho,Jae Heung Lee 대한안과학회 2007 대한안과학회지 Vol.48 No.11

Purpose: To evaluate the efficacy of photodynamic therapy (PDT) with verteporfin in the management of choroidal neovascularization (CNV) associated with angioid streaks. Case summary: Six eyes of four patients with CNV due to angioid streaks were treated with photodynamic therapy with verteporfin. Visual acuity testing, ophthalmologic examinations, photographs, and fluorescein angiograms were used to evaluate the results of PDT. Two of six eyes had subfoveal lesions, while four eyes had juxtafoveal lesions on initial examination. Conversion from a CNV to a fibrous scar lesion following PDT was observed in four eyes. Enlargement of the CNV was documented in two eyes at the final follow-up. Of a total of 6 eyes, the final best-corrected visual acuity decreased in 4 eyes and stabilized in 2 eyes. Conclusions: Photodynamic therapy can achieve short-term cessation or decrease of fluorescein leakage from chroidal neovascularization associated with angioid streaks. However, it does not alter the course of this disease, and multiple sessions are needed. Visual prognosis is poor.

본관 5층 시청각실 로비 : 계획된 행동이론에 기반한 정보통신윤리 수업 설계

정자영 ( Ja Young Jung ),김길모 ( Kil Mo Kim ),김성식 ( Seong Sik Kim ) 한국컴퓨터교육학회 2010 한국컴퓨터교육학회 학술발표대회논문집 Vol.14 No.2

정보통신기술의 발달로 인하여 더욱 절실히 요구되고 있는 정보통신윤리 교육은 정보통신윤리 교육을 실시해야 한다는 당위성만 강조될 뿐, 실제 학교현장에서는 단순히 정보화의 역기능 측면을 강조하고 이를 대처하기 위한 단편적인 방법 전달 위주의 수업 방식으로 이루어지고 있다. 그 결과 가치관과 태도의 변화가 이루어 져야 하는 정보통신윤리교육의 목적을 달성하지 못한 채 학습자들은 인지하고 있는 것과 행동하는 것에 괴리가 생기게 되었다. 이에 본 연구에서는 중학교 학생들을 대상으로, 학생들의 옳고 그름을 판단하지만 행하지 않는 윤리적 정보통신윤리 행동이 일어나는 원인을 계획된 행동이론으로 고찰하였다. 그리고 계획된 행동이론에서 알면서 행하지 않는 불완전한 행동의 실천력을 강화시킬 수 있는 수업 전략을 도출하여 정보통신윤리 수업을 설계하였다.

커피의 소비동기와 향후 소비의도에 관한 연구

정자영,Jung, Ja Young 한국벤처창업학회 2013 벤처창업연구 Vol.8 No.4

우리나라 사람들의 커피에 대한 소비는 급격하게 증가해왔고 지금은 모든 연령대에서 개인의 취향에 따른 커피를 즐기는 문화가 자리잡아가고 있다. 그래서 소비자의 연령층, 기호도, 만족도에 따른 마케팅 전략이 필수인 시점이 되었다. 커피가 건강에 도움이 되는지 아니면 안 좋은지에 대한 논의는 계속되고 있지만 카페인이 주는 각성과 커피를 마실 때의 심신의 안정과 마음의 여유는 부정할 수 없는 커피가 주는 즐거움이다. 본 연구에서는 커피를 소비하는 동기를 요인 분석한 결과 웰빙소비동기, 기분전환동기, 사회적 소비동기, 습관적 소비동기, 정서적 소비동기 등의 5가지 요인으로 분류하였다. 또한 이에 따른 사람들의 소비의도 요인 분석은 정신건강적 소비의도, 중독적 소비의도, 부작용 극복 소비의도, 가격적 소비의도, 사회심리적 소비의도 등의 5가지 유형으로 분류하였다. 본 연구의 조사대상은 서울시와 경기도에 거주하는 20세 이상의 성인들을 대상으로 2013년 1월 3일부터 2월 5일까지 설문조사를 실시하였다. 총 500부의 설문지를 배부하여 450부가 회수되었고, 이들 중 설문의 응답이 불성실한 22부를 제외한 428부를 최종분석에 사용하였다. 자료의 통계처리는 SPSS Win Ver 18.0 버전을 사용하여 타당성분석, 요인분석, 신뢰성분성, 군집분석, 일원분산분석(One-Way ANOVA), 다중회귀분석 등을 실시하였다. 주요 연구가설은 다음과 같다. 첫째, 커피소비동기는 소비의도에 영향을 미칠 것이다. 둘째, 인구통계적 특성에 따라 커피소비의도의 차이가 있을 것이다. 연구결과에서 커피소비동기는 커피소비의도에 부분적으로 영향을 미치는 것으로 나타났고, 공통적으로 영향을 미치는 요인은 정서적 동기로 나타났다. 인구통계적 특성에 따른 커피소비동기 차이분석과 커피소비의도 차이분석 모두에서 연령, 직업, 학력, 및, 월평균 소득에 따라 차이가 나타났다. 사람들의 커피소비유형은 기존의 알려진 사람들의 맛 추구나 커피전문점 속성선택 결과와는 달리 인체에 미치는 건강과 효능에 관련된 요인과 정서적 안정요인이 더 높았다. The consumption of coffee has been drastically increased last two decades. Now almost all the Korean adult people enjoy the coffee and diverse cultures related coffee have been spread widely in Korea. Therefore new marketing strategies are necessary to satisfy consumers according to ages, attitudes, and other characters. It has been continuously discussed whether the coffee gives negative impacts to health. Regardless of the discussions of the effects to health, now coffee became a part of modern daily lives. In this study the motivations of coffee consumption were classified to five; wellbeing motivation, refreshment motivation, social motivation, habitual motivation, and emotional motivation. Future intention of coffee consumption were also classified to five factors: sound mental intention, addictive intention, side-effect recovery intention, economic intention, and psychological intention. The survey was conducted in Seoul City and Kyeongki Province from January 3 to February 2, 2013. Total 500 questionaries were distributed and 450 were collected and 428 samples were used for the analysis of this study. The data were analyzed by SPSS Win 18 Version. The methods used in this study were factors analysis test, reliability test, validity test, t-testy, One-Way ANOVA, and regression analysis. The hypnosis in this study were as follows. First, The motivations of coffee consumption would influence to the intention of coffee consumption. Second, there would be statistical differences to the intention of coffee consumption according to the demographic characteristics. According to the result of the study, the motivation of coffee partially affected to the intention of coffee consumption. And there were statistical differences according to age, occupations, educational levels, and monthly incomes. The implications of this study were the factors related health and emotional feeling were considered more important than tastes and characters of coffee-shop that people thought more important before.

라이프스타일과 커피소비동기에 관한 연구

정자영,김광진,Jung, Ja Young,Kim, Kwang Jin 한국벤처창업학회 2013 벤처창업연구 Vol.8 No.3

우리나라 사람들의 커피에 대한 소비가 급격하게 증가해왔고 지금은 20대 이후의 모든 연령대에서 커피가 사람들의 일상적인 생활에서 가장 많이 마시는 생활의 필수 소비품의 하나로 자리 잡아 가고 있다. 커피소비가 증가함에 따라서 커피 산업계는 물론이거니와 학계에서도 커피소비에 대한 많은 연구가 진행되고 있다. 커피는 종류가 다양하고 커피를 소비하는 동기와 커피소비 태도도 연령이나 라이프스타일 등에 따라 다양한 형태를 보이고 있다는 연 결과가 있었다. 본 연구에서는 라이프스타일에 따른 커피 소비동기의 차이를 중심으로 연구하였다. 본 연구의 조사대상은 서울시와 경기도에 거주하는 20세 이상의 성인들을 대상으로 2013년 3월 1일부터 3월 31일까지 1개월간 설문조사를 실시하였다. 총 600부의 설문지를 배부하여 480부가 회수되었고, 이들 중 설문의 응답이 불성실한 10부를 제외한 470부를 최종분석에 사용하였다. 자료의 통계처리는 SPSS Win Ver 18.0 버전을 사용하여 타당성분석, 요인분석, 신뢰성분성, 군집분석, 일원분산분석(One-Way ANOVA), 다중회귀분석 등을 실시하였다. 본 연구에서는 라이프스타일을 요인분석한 결과 웰빙추, 맛추구, 분위기추구, 외식추구, 인스턴트추구, 경제성추구 등 6가지 유형으로 분류되었다. 커피소비동기를 요인분석한 결과 웰빙소비동기, 기분전환 소비동기, 사회적 소비동기, 습관적 소비동기, 정서적 소비동기 등 5가지 유형으로 소비동기가 분류되었다. 주요 연구가설은 다음과 같다. 첫째, 라이프 스타일은 커피소비동기에 영향을 미칠 것이다. 둘째, 라이프스타일 유형에 따라 커피 소비동기에 차이가 있을 것이다. 연구결과에서 라이프스타일은 커피소비동기에 부분적으로 영향을 미치는 것으로 나타났고, 라이프스타일 유형에 따른 커피 소비동기의 차이에서는 라이프스타일 유형에 따라 습관적 소비동기에 차이가 있을 것이라는 항목을 제외하고는 다른 4가지 세부 가설이 모두 라이프스타일 유형에 따라 커피소비동기에 차이가 있는 것으로 나타났다. In Korea recently the consumption of coffee has been drastically increased and majority of people who are more than $20^{th}$ are drinking more than a cup of coffee every day. Nowadays coffee a kind of essential items in modern urban society. As the popularity of the coffee is increasing, As the coffee consumption is growing, the studies on coffee also have been increased. Many of the studies on coffee were focused on the consumer attitudes, coffee shops and franchise coffee shops, and coffee components or ingredients. As the products of the coffee are becoming diverse, the consumers of coffee also becoming diverse. There was a study showing that coffee has variety of types, and that motivations and attitudes for coffee consumption are different depend on demographic statistics such as age and life styles. On this study main focus was life style and consumer's motivation on coffee consumption. For this study the survey was conducted on the people living in Seoul City and Kyengkido from March 1, 2013 to March 31, 2013. 600 questionnaires were distributed and 480 were collected and 470 were used for analysis of this study. The statistics program used in this study was SPSS. The method used in the analysis wee factors analysis test, reliability test, validity test, t-testy, One-Way ANOVA, and regression analysis. In this study according to the factor analysis, the life styles were classified the following six categories ; wellbeing pursuit, taste pursuit, atmosphere pursuit, dine-out pursuit, instant pursuit, and economic value pursuit. The factors of coffee consumption motivation were 6; wellbeing consumption motivation, changing mood consumption motivation, social consumption motivation, habitual consumption motivation, and emotional consumption motivation. The demographic factors used in this study were age, marital status, occupation, educational background, residence, income, and eating-out expenses. The hypothesis used in this study were two. The first hypo-thesis was whether the coffee consumption was affected by the life styles. The second hypo-thesis was whether there was any statistical differences on the motivation of coffee consumption according to the characteristics of life style. The outcome of this study demonstrated that life styles had partial impact on coffee consumption motivations. According to the characteristics of the life style, except for the habitual consumption motivation, all the other factors showed statistical differences on coffee consumption motivations according the characteristics of life styles.

백내장 수술 후 발생한 급성 안내염의 임상경과와 시력예후 인자

정자영,고병이,김병엽.Ja Young Jung. M.D.. Byung Yi Ko. M.D.. Byeoung Yeob Kim. M.D. 대한안과학회 2008 대한안과학회지 Vol.49 No.8

Purpose: To determine the factors related to the clinical outcome of acute endophthalmitis after cataract surgery. Methods: Authors performed a retrospective study of 65 eyes of 65 patients who had been treated for endophthalmitis from 2001 to 2006 at our hospital. We analyzed the relationship between final visual outcomes and prognostic factors. Results: Final visual acuities were 0.5 or better in 49.2% of all eyes. Of 57 eyes, 29 eyes (50.8%) were culture positive. Staphylococcus epidermidis and Streptococcus pneumoniae were the most common organisms isolated. Cases with baseline acuity of counting fingers or better, cases with culture-negative or gram-positive infection, and cases not requiring vitrectomy had better prognoses. Conclusions: Baseline visual acuity, type of cultured organism, and method of treatment are significantly related to visual prognosis. J Korean Ophthalmol Soc 49(8):1242-1247, 2008

비유전독성 간발암물질인 Cloibrate 의 F344 랫드에 있어서 경구 아급성독성시험

정자영(Ja Young Jeong),이국영(Kook Kyung Lee),신동환(Dong Hwan Shin),한범석(Beom Seok Han),김대중(Dae Joong Kim),강태석(Tae Seok Kang),김기상(Ki Sang Kim),장동덕(Dong Deuk Jang),김창옥(Chang Ok Kim),김효정(Hyo Jung Kim),김지희(Jee He 한국응용약물학회 1995 Biomolecules & Therapeutics(구 응용약물학회지) Vol.3 No.1

Clofibrate, a peroxisome proliferator, is hepatocarcinogenic in rats in a dose-dependent manner. A total of 70 male and female F344 rats, 5-week-old, were divided into three groups. Rats were fed clofibrate at 0, 0.25, or 0.5% in diet for 30 days. All rats were anesthetized with CO₂, blood samples were taken by cardiac puncture for hematology and clinical chemistry, and the rats were killed by exsanguination. Livers, kidenys, pancreas, adrenal glands, spleen, heart, lungs, thyroid gland, reproductive organs, and digestive organs were removed, weighed, later processed, and embedded with paraplast for histological examination. The relative liver and kidney weights with respect to final body weight in the clofibrate-treated group were significantly increased compared with those of control group at all dose levels (p<0.01). It has been suggested that clofibrate may influence on hepatotoxicity by increases in peroxisomal proliferation.

6~7세기 백제 사찰 내 강당 좌우 건물지의 변천과정 고찰

정자영,Jung, Ja-Young 한국건축역사학회 2010 건축역사연구 Vol.19 No.6

Jeongrimsaji as temple remains of Baekje Sabi period, its re-excavation has been carried three times in full scale. As a result, the buildings in left and right of lecture hall was largely identified in 3 forms. First, layout of small buildings in left and right of lecture hall. Second, layput of corridor in left and right of lecture hall. Third, layout of construction site in the north of corridor in left and right of lecture hall. Above second is included into remains of Gorye, the third is included into remains of Baekje - the remains were almost ruined then. The first form and third form in above is different each other in size of buildings, form of layout, and location. It is important to investigate these points: the time of constructing the buildings; what position have the use and function of the buildings in the temple? ; transition process of layout of the Buddhist temple. In this context, of temple remains in Baekje during the 5~7th century, the cases where construction sites in left and right of lecture hall and construction site in the north of corridor are identified, have been reviewed. Based on this review, the use and function of buildings, their transition process were investigated. The survey results show that small buildings in left and right of lecture hall existed in the middle and later period of the 6th century. During the later 6th century ~ the 7th century, construction site in narrow and long square shape was located in left and right of lecture hall instead of small buildings in the north of corridor. Therefore, it is identified that the aforementioned thing is earlier stage and the latter thing is later stage.