2,2' -디히드록시설포 아조메친 유도체에 의한 알미늄 및 갈륨의 형광 정량

이종원,이지연,허문회,안문규 慶星大學校 1998 論文集 Vol.19 No.2

Four azomethine dyes were synthesized in order to get excellent fluorescent reagent having hydroxyl and sulfo substituents. They are 2-hydroxy-3-sulfo-5chloroaniline-N-salicylidene(Ⅰ), 2-hydroxy-3-sulfo-5chloroaniline-N-2, 4-dihydroxybenzylidene (Ⅱ), 2-hydroxy-5-sulfoaniline-N-salicylidene(Ⅲ) and 2-hydroxy-5-sulfoaniline-N-2, 4-dihydroxybenzylidene(Ⅳ). These compounds react with aluminum and gallium in an aqueous dimethyl-formamide solution to form fluorescent 1:1 (metal-azomethine) complexes. Several conditions, such as the pH of the solution, the reagent concentration, the time of standing and fluoresence characteristics cincellar media were investigated. the maxium fluorescence intensity of the aluminum complex was found at pH 6 (heated for 10 min, at 50℃), and the gallium complex was at pH 4. The fluorescence was stable at least for 2 hours by using 2-hydroxy-5sulfoanilin-2-, 4-dihydroxybenzylidene in Triton X-100 media, 0.1∼4 ㎍ of aluminum and 0.5∼30 ㎍ of gallium in 25 mL solution could be determined. Ni(Ⅱ), Cu(Ⅱ), Fe(Ⅱ), Mg(Ⅱ), and Zn(Ⅱ) ions interfered with the determination. On the other hand, the effect of surfactants on the fluorescence characteristics in Triton X series media show a remarkable enhancement of fluorescence intensity as compared with that of azomethine complexes in aqueous media.

Dibucaine-금속 요오드 착물을 이온교환체로서 이용한 Dibucaine의 정량

최현영,이지연,허문회,안문규 慶星大學校 1998 論文集 Vol.19 No.1

Dibucaine-selective poly(vinyl chloride) menbrance electrodes were designed based on ion-association complex between dibucaine and metal iodide complex such as H??, Bil?? and CdI??. Stable potentiometric response was obtained with Meyer reagent at pH 3.0-5.5, with Dragendorff reagent at pH 3.0-5.0 and with Marume reagent at pH 3.0-5.5. The best plasticizer was 49 w/w% acetyl-tri-n-butly critrate for Meyer reagent, 65.3 w.w% for Marume reagent. The electrodes exhibited a linear response based on Meyer, Dragendorff and Marume complex were the concentration range of 2×10?4×10?M ,2×10×4×10?M, 2×10?1×10?M,respectively. The potentiometric response slope of optimized membrane electrodes based on Meyer, Dragendorff and Marume complex for dibucaine were 56.12,57.81 and 56.45?? with relative standard deviation of 2.75, 2.29 and 1.96%, respectively. This ISE methods are found to be sensitive, rapid, fairly accurate and are able to be empolyed successfully for the determination of dibucaine preparations.

무선 ATM망에서의 동적 대역폭 할당 알고리즘에 대한 QoS 성능 연구

류기훈,김지연,전광탁,양해권 군산대학교 정보통신기술연구소 2000 情報通信技術硏究論文集 Vol.4 No.-

In the network with small cell radius, a mobile terminal which has large mobility should perform frequent handover. This requires that handover mechanism must be done fastly. As cell size is smaller, signal power level is lower Handover is implemented by the network to give the users freedom of motion beyond a limited wireless coverage area while they are communication. The handover is procedure by which a user's radio link is transferred from one radio port to another through the network without an interruption of the user collection. The currently existing method for handover uses an algorithm, in which the bandwidth corresponding to the adjacent cells is supposed to be allocated. However, this method leads to the problem of requiring bandwidth allocation for many-unknown cells, due to the lack of information toward moving direction in mobile terminal. In this paper, we propose an efficient dynamic bandwidth allocation algorithm for solving those problem above, based on both path rerouting handover and soft hangover mechanism with wireless ATM. Thus, only the bandwidth for corresponding adjacent cell, that is from estimation, is chosen to be reserved; this method drastically reduces the waste of bandwidth, and improves the efficiency in performance. Comparing with static bandwidth allocation algorithm, the proposed algorithm make a bandwidth allocation more efficient. As for the QoS, it has been shown that proposed algorithm shows better performance than that with static bandwidth allocation algorithm.

플라비아닌산을 이용한 클로르프마진의 용매추출 분광광도법

정문모,남수자,이미나,이지연,허문회,안문규 慶星大學校 1998 論文集 Vol.19 No.2

임상가를 위한 외상후 스트레스 장애 척도의 신뢰도, 타당도 연구

이병용,김임,이선미,은헌정,김동인,김지연 大韓神經精神醫學會 1999 신경정신의학 Vol.38 No.3

연구목적 : 본 연구의 목적은 임상가를 위한 외상후 스트레스 장애 척도의 신뢰도와 타당도를 알아보고자 하는 것이다. 방 법 : 28명의 PTSD 군, 30명의 Non-PTSD군, 36명의 정상군에 대하여 임상가를 위한 외상후 스트레스 장애 척도를 실시하였다. 면담자간 신뢰도를 평가하기 위하여 10명의 외상후 스트레스 장애 환자를 2명의 검사자가 동시에 평가하였다. 타당도를 평가하기 위하여 모든 피검자들을 대상으로 사건 충격 척도, Beck의 우울 검사, Spielberger의 상태 특성 불안 검사 Ⅰ, Ⅱ를 시행하였다. 결 과 : Cronbach's α와 면담자간 일치도는 각각 .95와 .89였다. 임상가를 위한 외상후 스트레스 장애 척도는 각각 사건 충격 척도(r=.80), Beck의 우울 검사(r=.70), Spielberger의 상태 특성 불안 검사 Ⅱ(r=.56)와 높은 상관을 가지고 있었다. 그러나 Spielberger의 상태 특성 불안 검사 Ⅰ(r=.20)과는 상관을 보이지 않았다. 임상가를 위한 외상후 스트레스 장애 척도는 임상 진단과 82.1%의 일치도를 보였다. 결 론 : 임상가를 위한 외상후 스트레스 장애 척도는 충분한 신뢰도와 타당도를 가지고 있었다. 임상가를 위한 외상후 스트레스 장애 척도는 외상후 스트레스 장애를 진단하기에 유용한 도구라 할 수 있다. Objectives : The purpose of this study was to examine the reliability and validity of A Clinician-Administered PTSD Scale (CAPS). Methods : CAPS was administered to 28 PTSD subjects, 30 non-PTSD subjects, and 36 normal subjects, Interrater reliability for the CAPS was established by interviewing 10 PTSD subjects. The interviews were conducted by 2 interviewers simultaneously. The authors administered to all the subjects Impact of Event Scale(IES), Beck Depression Inventory(BDI), State Trait Anxiety InventoryⅠ, Ⅱ(STAI-I, Ⅱ) for measuring concurrent validity. Results : The value of Cronbach's α and interrater agreement were .95 and .89, respectively. The CAPS was highly correlated with IES(r=.80), BDI(r=.70), STAI-Ⅱ(r=.56). But the CAPS was not correlated with STAI-I(r=.20). The CAPS showed an overall agreement with clinical diagnosis of 82.1%. Conclusions : The CAPS shows a reasonable degree of reliability and validity. The CAPS could be a valuable tool to diagnose PTSD.

Research of public perceptions and behaviors for skin health: results of survey from the skin health expo in Korea

( Ji Yeoun Shin ),( A Young Park ),( Woo Il Kim ),( Sung Yul Lee ),( Moon Kyun Cho ),( Sang Hoon Lee ) 대한피부과학회 2018 대한피부과학회 학술발표대회집 Vol.70 No.2

Background: Healthy skin is an important factor for the quality of life and physical and mental well-being. The demand for dermatological information is increasing not only in patients with skin diseases, but also in the publics with normal skin. However, the public’s perception and behaviors for skin health in Korea is unknown. Objectives: To examine public’s perception and behaviors for skin health in Koreans visiting Skin Health Expo 2017. Methods: A total of 597 participants completed a questionnaire. The questionnaire regarding demographics, status and behavior for skin health and expo satisfaction. Results: Respondents with higher stress level, and history of skin diseases had lower satisfaction with self-skin health. Most subjects responded with sleep and water intake as important factor for healthy skin. One-on-one consultation with dermatologists was the most satisfactory among the Expo. Conclusion: To provide proper information for improving public skin health and emphasize the importance and expertise of dermatologists in skin disorders with social burden, educational efforts using mass media and education program such as Expo planned by dermatologists and government are necessary.

Treatment of hidradenitis suppurativa patient with klinefelter syndrome using adalimumab

( Ji Yeoun Shin ),( Ho Jung Lee ),( Sung Yul Lee ),( Young Lip Park ) 대한피부과학회 2018 대한피부과학회 학술발표대회집 Vol.70 No.1

Hidradenitis suppurativa (HS) is a chronic recurrent suppurative skin disease of unknown etiology, frequently involves axillae, inguinal area, buttock, and perineum, and is more frequent in women. Klinefelter syndrome, known as 47,XXY or XXY, is the set of symptoms that result from two or more X chromosomes in males. There have been reported many cases of autoimmune disease in patients with Kleinfelter syndrome, but no case has been reported with HS. We reported at a 30-year-old man with Klinefelter syndrome presenting suppurative nodules around the anus. We found that multiple purulent nodules with tenderness and odor was present around the anus and perineum, accompanied by scar and sinus on the periphery through physical examination. We diagnosed him as HS, based on clinical findings. When serum testosterone level was low (e.g, Klinefelter syndrome), level of tumor necrosis factor-α (TNF-α) was significantly increased. TNF-α is overexpressed in intact skin as well as lesions in patients with HS, which correlates with the severity of the disease. Although the exact mechanism is unknown, low male hormone level in Klinefelter syndrome associated with increased TNF-α, may have contributed to worsening the patient's disease. We reported that biologics were more effective than primary treatment such as antibiotics in patients with autoimmune or genetic diseases, which may be accompanied by increased TNF-α in patients with HS.

Social Policies and Politics : The Politics of Immigrant Incorporation Policies in Korea and Japan

( Ji Yeoun Song ) 경남대학교 극동문제연구소 2016 ASIAN PERSPECTIVE Vol.40 No.1

Over the past two decades Korea and Japan have experienced a rapid inflow of foreign population into their homogeneous societies. Despite their many similarities in immigration control policies, Korea and Japan have differed in their politics of immigrant incorporation. Korea’s central government has instituted policies that favor female marriage migrants and children of international marriages, while Japan’s local governments have initiated policies for a wide range of foreign residents in their communities. I argue that the different boundaries of citizenship for specific groups of the foreign population, created and reinforced by the state, explain variations in the politics of immigrant incorporation policies in the two countries. KEYWORDS: immigrant incorporation, multiculturalism, citizenship, migrant workers, marriage migrants

Inhibition Effect of Chaenomeles Sinensis Extract on Adipogenesis in 3T3-L1 Adipocytes

Ji-Hyeon Kwon,Sung-Yeoun Hwang,Ji-Sook Han 한국식품영양과학회 2016 한국식품영양과학회 학술대회발표집 Vol.2016 No.10

Poster Session : PS 0886 ; Lower GI Tract : Association Between Functional Constipation and Intake of Dietary Fiber: A Population-Based Study

( Ji Yeoun Kim ),( Young Jae Byun ),( Dong Soo Han ),( Young Ouk Ro ),( Sun Min Kim ),( Chang Soo Eun ) 대한내과학회 2014 대한내과학회 추계학술대회 Vol.2014 No.1

Backgrounds: Patients with functional constipation are often recommended to increase dietary fiber intake and overactive bladder (OAB) may be associated with bowel symptoms. We examined the associations among functional constipation, dietary fiber intake, and OAB in Korean population cohort. Methods: This cohort study, using a reliable and valid questionnaire based on the Rome III criteria was performed in Yangpyeong city, Korean community on subjects aged = 40 years between 2011 and 2012. Total, grain, vegetable, fruit and seaweed fiber intakes were estimated from dietary questionnaires. OAB was defined through overactive bladder symptom score. The associations among functional constipation, dietary fiber intake, and OAB were assessed separately by age and gender. Results: A total of 1,173 patients were enrolled, with mean age of 62.4±29.0, of which 63% was comprised of women. There were 134 (11.4%) patients with functional constipation. Total fiber intake was associated with a significantly lower prevalence of functional constipation in men, not in women. On the contrary, OAB was correlated with functional constipation in elderly women. Conclusion: Men who consumed high amount of fiber have a lower prevalence of functional constipation. OAB is associated with functional constipation in elderly women. This population-based study suggest that the pathogenesis of functional constipation may be different between men and women.