Clinical Experience of Single-Session Percutaneous Aspiration and OK-432 Sclerotherapy for Treatment of Simple Renal Cysts: 1-Year Follow-Up

Choi, Young Deuk,Ham, Won Sik,Kim, Won Tae,Cho, Kang Su,Lee, Joo Hyoung,Cho, Soung Yong,Seo, Ju Wan,Jin, Ok Hyun Mary Ann Liebert 2009 Journal of endourology Vol.23 No.6

<P>PURPOSE: To evaluate the efficacy and safety of single-session OK-432 sclerotherapy for the treatment of renal cysts. MATERIALS AND METHODS: From October 2005 to November 2006, 48 patients (61 simple renal cysts) were included in the study. Indications were determined as flank discomfort (n = 37) or patient reassurance due to increasing size (n = 11). The simple renal cysts were aspirated under ultrasonography (US), at which point OK-432 was injected into the cyst. Follow-up was performed with US or computed tomography scan every 3 months until 1 year. Complete regression of the renal cyst or more than 70% reduction in size with no symptoms indicated a successful treatment. RESULTS: Among 61 renal cysts of 48 patients, the overall success rate was 98.4%. Complete regression occurred in 46 cysts (75.4%), and more than 90% reduction in size occurred in 6 cysts (9.8%). A size reduction of 80% to 90% and 70% to 80% occurred in five (8.2%) and three cysts (4.9%), respectively. A size reduction less than 70% occurred in only one cyst (1.6%). The success of cyst regression was correlated with cyst volume. Clinical symptoms resolved in 100% of patients with symptomatic cysts, and there was no enlargement of the aspirated cysts at the 1-year follow-up. After the procedure, there were only some minor complications, such as mild fever, flank pain, and leukocytosis, which subsided with the conservative treatment. CONCLUSIONS: Percutaneous OK-432 sclerotherapy is simple, safe, and effective, and it can be an alternative first-line therapy for simple renal cysts.</P>

기관지 구조 변수와 폐 기능 특성을 결합한 시멘트 노출 분류 예측을 위한 딥러닝 모형

최예경(Yekyoung Choi),김태우(Taewoo Kim),김우진(Woo Jin Kim),이창현(Chang Hyun Lee),채금주(Kum Ju Chae),박소현(So Hyeon Bak),권성옥(Sung Ok Kwon),진공용(Gong Yong Jin),최상헌(Sanghun Choi) 대한기계학회 2021 대한기계학회 춘추학술대회 Vol.2021 No.11

(±)-Camphor가 ICR 마우스 수컷의 간 cytochrome P450 효소 활성에 미치는 영향

오은경,박형건,배기현,최옥진,최은경,최창근,한진희,정태천 한국환경독성학회 2002 환경독성보건학회지 Vol.17 No.4

Effects of (±)-camphor on liver cytochrome P450 enzymes were investigated in male ICR mice. Mice were treated intraperitoneally with 0, 200, 400 and 800 mg/kg of (±) -camphor in corn oil for 3 consecutive days. Twenty four hr after the final treatment, the animals were subjected to necropsy. The activities of serum aspartate aminotransferase and serum alanine aminotransferase were slightly changed by the treatment with (±)-camphor at the doses used. Administration o(±)-camphor to mice significantly induced the hepatic activities of pentoxyresorufin O-depentylase and benzyloxyresorufin O-debenzylase and weakly induced ethoxyresorufin O-deethylase in dose-dependent manners. The present results suggested that (±)-camphor might act as a relatively specific inducer of hepatic cytochrome P450 213 in male ICR mice.

단순추적법에 의한 태양전지의 특성평가

최연옥,서진연,조금배 조선대학교 에너지.자원신기술연구소 1997 에너지·자원신기술연구소 논문지 Vol.19 No.2

The main problems in photovoltaic performance measurement arises from the fact that solar cells have a highly selective spectral response and are, therefore, very sensitive to the spectral composition of the incident radiation. Outdoors, this varies considerably with location, weather, time of year and time of day, Indoors, it depends on the type of simulator used and it can change as the equipment ages. Unless measurement procedures take account of these variations and other difficulties, such as the marked temperature dependence of solar cell, the results can be grossly erroneous. Performance rakings of the same module by laboratory have been know to disagree by as much as 20%.

좌심실내 혈류 전파 속도에 관한 연구

최시완,정진옥,강승식,성인환,박종훈 충남대학교 의과대학 지역사회의학연구소 1995 충남의대잡지 Vol.22 No.1

Background : Noninvasive attemps to identify left ventricular relaxation have been hampered because relaxation rate, left atrial filling pressure, and chamber compliance are the major determinants of peak early velocity and filling rate. This study was perfomed to evaluate the relation between the velocity of flow propagation and left ventricular relaxation by using pulsed doppler echocardiography to analize flow propagation in the left ventricle. Method : By using pulsed Doppler echocardiography, the velocity of left ventricular flow propagation was measured from the distance and time difference of flow wave along the long axis propagation of left ventricular inflow during early filling in normal subjects (n=30), and M-mode echocardiographic data were obtained to evaluate mitral annulus long axis movement (mitral annulus relaxation rate) which represents left ventricular relaxation. Results : the peak early velocity was not related to mitral annulus relaxation rate, but, the velocity of flow propagation was related to mitral annulus relaxarate (P<0.005) in normal subjects. Conclusion : the velocity of flow propagation during early filling seems to be highly dependent on the mitral annulus relaxation rate and could be an important noninvasive tool in studying diastolic function.

自然科 實驗學習指導方法의 硏究 : 탐구학습의 효율화를 위한 재료개발

최수안,오진태,옥치율 부산교육대학교 과학교육연구소 1985 科學敎育硏究 Vol.10 No.-

It may be said that the mainpost of natural science study is the inquring study and as for the point of observation and experiment which is a kind of inquiring process, the success of natural science study is dependent upon study materials. Therefore, in order to develop more effective inquring activities, successive studies such as the ploblem solution, improvement and development of study materials are needed. Several units is the field of chemistry and biology are selected, and several study materials improved and developed are examined as followers: 1. Several experiment methods for the game in order to observe the presence of air are tried. 2. In order to observe the solution phenomena of air easily, new experiment designe is devised, ammonia is soluble in the water including two drops of phenolphthalein and the solution phenomena of air changing into red. 3. In the experiment of the generation of carbon dioxide using every kind of shelfish instead of lime, the amount of the generation of carbon dioxide from the concentration of hydrochloric acid and the amount of shelfish is compared and the effort of substitute materials is examined. 4. The utility factor or the inquring study is devised through the utilization of waste materials, the development of substitute materials and the productive activities of instrument observation using study materials used separated units of materials. 5. It is found that a tadpole, a mud-snail and a killifish substitute for a planaria with a living thing material in the field of biology is available for the revival experiment.

태권도 체육관의 프로그램 및 시설에 따른 수련생 만족도 분석

최상진,조옥성 한국스포츠리서치 2003 한국 스포츠 리서치 Vol.20 No.1

This study is aims to suggest the basic data providing variouse services for the trainees in Taekwondo training centers. The subject of this study were the training centers in Seoul and Gyeonggi-do. And this study used the questionnaries used by Kim Seon-Hwa(2000), Kim O-Seong(2001), Kim Eun-Cheol(2001) and I added several qustions that were considered to be necessary for this study. In addition, I analyzed the data from 904 trainees randomly selected and computerized the results to fit for the purpose of this study using Windows SPSS/PC+ 10.0 Version. This study concluded as follows. 1) The trainee's satisfaction of Program and facility by sex distinction was not significant difference. 2) The trainee's satisfaction of Program and facility by the grade of trainers was not significant difference(p<.001, p<.01). 3) The trainee's satisfaction of Program and facility by level of trainers was not significant difference.

가변부하를 이용한 PV모듈의 시험회로 설계

최연옥,이열선,서진연,한승조,조금배 조선대학교 동력자원연구소 1997 動力資源硏究所誌 Vol.19 No.1

A complete computerized system for the characterization and performance testing of photovoltaics(PV) modules under natural sunlight and ambient condition was designed. I-V characteristics of PV module provides on essential diagnostic means in assessing the performance and internal cell parameters of PV module depends on its basic materials, manufacturing technology and operating environmental conditions. I-V curves derived from PV modules refect to a large extent the physical properties and their expected performance. In this paper, Electrical performance measurement and evaluation methods for solar cell module by MOSFET variable Load were studied. Also, Mathematical model and theory of solar cell associated with the photovoltaic effect has been discribed.

대학생의 봉사활동 의식 수준별 성격 특성 연구

최진승,한미옥,김경원 동아대학교 교육대학원 2002 동아교육논총 Vol.28 No.-

This study research on service cognitions of college's students and their personality traits. The subjects are 1,417 college students (504 male students and 913 female students). The used tools are college student's personality test and questionnaires of college student's service activities. The sub-factors of personality traits are 12 traits as responsibility, leadership, diligent, independent, planning, tolerance, self-esteem, legality, generosity, anxiety, impulse, and masculinity. The categories of service activities on college students are 11 items as the importance of service activity to college students, the desire of service activity to college students, the beginning times of service activity to college students, the expense of service activity of college students, the times in one year of service activity to college students, the satisfactions of service activity to college students, the obstacles of service activity to college students, the obstacles of service activity to college students, the advantages of service activity to college students, the credit permissions of service activity to college students, the areas of service activity to collee students, the perspectives in future time of service activity to college students. From the results and discussions, conclusions as follows: 1.The college students on higher level traits as level traits as responsibility, leadership, diligent, planning, tolerance, self-esteem, legality, generosity, impulse, and masculinity recognize the importance of service activity. 2.The college students on higher level traits as responsibility, leadership, diligent, planning, tolerance, self-esteem, legality, and generosity recognize the importance of service activity. But the college students on higher level traits as independent recognize the unimportance of service activity. 3.The college students on higher level traits as leadership tolerance, self-esteem, and legality rrecognize the desire of service activity. 4.The college students on higher level traits as tolerance, legality, and generosity recognize the importance of self-expenses. 5.The college students on higher level traits as planning, tolerance, self-esteem, legality, generosity, and masculinity recognize the more than five times in a year as college students' service activity. 6.The college students on higher level traits as responsibility, leadership, diligent, independents planning, tolerance, self-esteem, legality, generosity, impulse, and masculinity recognize the satisfaction of service activity. 7.The college students on higher level traits as responsibility, leadership, planning, tolerance, and self-esteem recognize the obstacle as misunderstanding of college students, but the college students on higher level traits as independents recognize the obstacle as lake of systems and support from college and govemment. 8.There are no differences among the college student's traits and college student's advantages as spirits of sacrifice, professional knowledge, and a lot of times in college courses. 9.The college students on higher level traits as leadership, diligent, planning, tolerance, self-esteem, generosity, impulse, and masculinity recognize the importance of the credit permissions of service activity to college students. 10.The college students on higher level traits as responsibility and masculinity recognize the importance of visiting home for orphans, the college students on higher level traits as leadership recognize the importance of helping farm country, and the college students on higher level traits as independence recognize the importance of helping homelessness parents. 11.The college students on higher level traits as leadership, planning, tolerance, self-esteem, legality, and generosity recognize the positive perspectives in future time of service activity to college students.

의지 통제 방략 척도 개발에 관한 연구

최진승,박경옥,박금옥 東亞大學校 學生生活硏究所 1998 學生硏究 Vol.17 No.-

The purpose of this study is to make a research on the Volitional Control Strategies Scale of middle and high school students. The subjects were 1,500 male and female students : 300 each in their 1st through 3rd grade in middle schools and 1st and 2nd grade in high schools. The preliminary items were analyzed by item analysis and factorial analysis, and correlations among subfactors of Volitional Control Strategies Scale. From the results and discussions, the conclusions are as follows : 1. The Volitional Control Strategies Scale have four subfactors such as cognition control, emotional control, motivational control and environmental control. 2. Useful items of Volitional Control Stategies Scale were 48 developed items according to the item analysis and factor analysis. 3. Reliability of Volitional Control Strategies for learning scale was found to exist from the study of the correlations the four subfactors.