백서 간재생중 H2B Histone 유전자 발현에 대한 Octamer Binding Transcription Factor의 역할

임규,방재웅,최두식,손미영,이영철,박청,김태동,김영래,박종일,윤완희,박승길,황병두 한국노화학회 2001 한국노화학회지 Vol.11 No.1

多點 피토관 流量計 周圍의 流動特性에 관한 실험적 연구

임재명,윤복현 木浦大學校 工業技術硏究所 2000 工業技術硏究誌 Vol.10 No.-

The flow characteristics passing a multi-point Pitot tube flow-meter with diamond shape were experimentally studied. ISA 1932 nozzles were used in order to measure average velocities in the pipe. A model of the same shape as the multi-point Pitot tube flow-meter with several holes perforated on its side was manufactured and tested to obtain pressure distributions around the test-piece. The combination of upstream double elbows varies the velocity profile and the position of maximum velocity and produces secondary flows and swirl. Especially, in case of 90˚ double elbows combination, swirl showed its maximum strength and anti-symmetric flow was also detected. The position of separation occurred at the same point all the time, in spite of various combinations of double elbows and for the entire range of Reynolds number tested in this study.

녹차 및 결명자 추출물의 교정용 브라켓과 치면 사이의 경계부에서 분리된 mutans streptococci에 대한 항균작용

임성훈,서정순,윤영주,김광원,유소영,김화숙,국중기,이병래,차종희,박재윤 대한치과교정학회 2003 대한치과교정학회지 Vol.33 No.5

본 연구는 치아우식증에 관련된 Mutans streptococci 표준균주 및 임상분리 균주의 성장억제를 유도할 수 있는 천연 생약추출물을 검색하기 위하여 실시되었다. 녹차추출물은 CHMC-2032를 사용하였으며, 결명자 추출물은 50% 에탄올을 이용하여 얻었다. 이들 추출물의 Mutans streptococci 표준균주 및 교정환자들에서 브라켓과 치면 사이의 경계부에서 분리된 각각 10 균주씩의 S. mutans 및 S. sobrinus에 대한 최소성장억제농도를 액체배지 희석법으로 구하였다. 그 결과 CHMC-2032의 S. mutans 및 S. sobrinus의 표준 균주, S. sobrinus의 대부분 임상분리 균주에 대한 최소성장억제농도는 5 mg/ml이었다. 그러나 결명자 추출물에 의한 S. mutans 및 S. sobrinus에 대한 세균 성장억제 효과는 미미하였다. 본 연구 결과 치아우식증의 예방적 측면에서 결명자차보다는 녹차를 마시는 것이 유리하며, CHMC-2032를 이용하여 구강양치용액을 제조하여 사용할 경우 교정환자를 포함하여 대부분의 사람에게서 치아우식증 예방 효과가 있으리고 추정된다. Mutans streptococci is the major causative factor in dental caries. Especially, orthodontic patients with fixed appliance are a risk group for dental caries. Because fixed appliances attached on teeth may change the environment of dental plaque, the enamel decalcification or dental caries around the bracket and band is a major side effect of orthodontic treatment. The aim of this study was to search plant extracts that have antimicrobial effect on mutans streptococci. Seed-extract of Casio tora were prepared with ethanol and CHMC-2032, the leaf-extracts from Camellia sinensis extract, was obtained extract, 2 type strains and 20 clinical isolates of mutans streptococci isolated from the interface between orthodontic brackets and tooth surfaces in the orthodontic patients were used in this study. The minimal inhibitory concentration of CHMC-2032 was 5 mg/ml on the S. mutans KCTC 3065, S. sobrinus KCTC 3088, and 8 clinical isolates of S. sobrinus. However, there was no antibacterial effect of seed-extract of C. tora on mutans streptococci. These data suggest that green tea may be more effective than the tea prepared from C. tora in the prevention of enamel decalcification or dental caries around brackets.

實驗大學 實施에 따른 師範大學 學生實態 (Ⅱ)

林在圭,吳岱燮,琴鍾友,李潤樹 慶北大學校 師範大學 1978 敎育硏究誌 Vol.20 No.-

The purposes of this study were (1) to reexamine what were found by the survey on KNU Teachers College Students after the Pilot School Project (Ⅰ) in order to assess the possibility of .generalizing results of the survey across different groups of students who enter Teachers College after the Pilot School Project was implemented, (2) and to examine students' opinion toward the current procedures of assingning freshemen to departments or majors of the Teachers College. The subjects were freshmen of KNU Teachers' College from 1975 to 1777 academic year. However, the data pertaining to the students from 1975 to 1976 had been gathered while the survey on Teachers College Students after the Pilot School (Ⅰ) was being carried out. In order to collect the data with regard to the students entered the Teachers College in 1977, four different questionnaives were employed. The data were statistically tested by means of chi-technique only when it seemed necessary and appropriate. Major findings of this study are as following: (1) After the Pilot School Project was employed, there were general tendency in students' reason applying for admission to KNU Teachers College: Each academic year, approximately 40% of freshmen decided to enter the college to be secondary school teachers in the future. (2) Students' attitude toward the new procedures of screening college applicants, which was employed after the Pilot School Project, were negative in general. Furthermore, their negative attitude became stronger year by year. (3) The degree of students' satisfaction with their majors were relatively higher than that expressed by the students who entered the college before the Pilot School Project was employed. (4) Both students' criteria for selecting their majors and then reasons for changing their majors which they had been interested in applying were varied across time subjects and time. (5) The obtained contingency coefficient between departments and GPA students of each department earned during thir freshmen year was 0.831. It seems to indicate that majority of freshment tends to choose their majors according to their GPA rather than their interest or aptitude. (6) Approximately 67.73% of freshmen of the 1977 academic year accepted the end of the academic year as the most appropriate time for assigning them to departments they desire to enter. 7) Approximately 52.10% of freshment supported the idea of assigningas many students to the departments as they wish to enter, as far as it is possible, by adjusting the capacity of department, which is regulated by MOE. (8) Approximately 61.08% of freshmen claimed not to deduct their GPA when their first choice of department became impossible and turned down to the second or the third one.

CFS로 횡보강된 콘크리트 압축부재의 보강성능에 관한 실험적 연구

유영찬,임재형 국립7개대학공동논문집간행위원회 2003 공업기술연구 Vol.3 No.-

The attention of this paper is focused on the reinforcement capacity of the RC compressive member confined with CFS and the regression analysis is performed with the use of the previous experimental data. From the regression analysis, the main parameters for CFS confinement were proved to be CFS amounts of reinforcement and overlapping length plus confinement coefficient. The main parameters and confinement coefficient are as follows. 1) CFS amounts of reinforcement: confinement ratio 0.53(circle), 0.35-0.40(rectangle) 2) Overlapping length: 10cm to a half of a cylinder circumference 3) Transverse confinement coefficients: 2.4(circle), 1.03(rectangle) The analytical results through the regression analysis are determined that they correspond well with experimental ones carried out to verify the afore-mentioned parameters and confinement coefficient.

간세포암의 크기와 알파 피토프로틴의 연관성

임효순,정용연,김재규,윤웅,강형근,박진균 全南大醫大 2001 전남의대학술지 Vol.37 No.4

특발성 자발성 신장 파열 1예

윤재철,김원,조규종,홍정석,이미우,장성은,오세현,임경수 대한응급의학회 2001 대한응급의학회지 Vol.12 No.4

Primary aldosteronism is a syndrome characterized by hypertension, hypokalemia, suppressed plasma renin activity, and elevated serum aldosterone levels. Conn first described it 1955 in association with adrenal cortical adenoma(Conn's syndrome). Today, it can be divided into at least six distinctive sub-groups. The diagnosis of primary aldosteronism is usually suspected when the patient presents with poorly controlled hypertension with hypokalemia. The main issues in the evaluation of primary aldosteronism are to differentiate an adenoma from hyperplasia and to localize the adenoma. Basic hormonal studies and computed tomographic(CT) scanning can be used effectively for that differentiation. An adenoma is one of a few potentially curable forms of hypertension, and it is best treated by removing the adrenal tumor. We experienced a case of a typical adrenal adenoma. The patient was a 37-year-old male who had experienced in both his legs over a period of several days a weakness due to hypokalemia. He was diagnosed using basic hormonal studies and adrenal CT scanning. After, he received laparoscopic adrenalectomy and was discharged with improved condition.

高血壓을 일으키는 아세트 알데하이드의 作用에 關한 硏究 : 副腎에서 카테콜아민의 分泌에 對하여

林東潤,文宰奎 朝鮮大學校 附設 醫學硏究所 1986 The Medical Journal of Chosun University Vol.11 No.1

Authors tried to investigate whether acetaldehyde causes release of catecliolaniiiies(CA) from Liie isolated perfused rabbit adrenal gland or not and to elucidate its mechanism or action. Acetaldehyde (300㎍) injected into adrenal vein produced the marked secretion of CA. Acetaldehyde-induced secretory effect of CA was not affected by treatment of atropine or chlorisondamine and even by atropine plus chlorisondamine. Release of CA evoked by acetaldehyde was not blocked by pretreatment with adenosine, but inhibited significantly by ouabain-treatment or calcium free Krebs solution. These results obtained suggest that acetaldehyde evokes release of CA from the isolated perfused rabbit adrenal gland by direct action, and that it may exert its hypertensive action partly through this mechanism.

Ganglioside GM1 influences the proliferation rate of mouse induced pluripotent stem cells

( Jae-sung Ryu ),( Kyu-tae Chang ),( Ju-taek Lee ),( Malg-um Lim ),( Hyun-ki Min ),( Yoon-ju Na ),( Su-bin Lee ),( Gislain Moussavou ),( Sun-uk Kim ),( Ji-su Kim ),( Kinarm Ko ),( Kisung Ko ),( Kyung- 생화학분자생물학회 2017 BMB Reports Vol.50 No.6

The ACKNOWLEDGEMENTS should be corrected as follows, This research was supported by a grant (Code# PJ0074922012) from the Korean Rural Development Administration, and has been supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education Science and Technology (2010-0022316 and KCG5401011), and the KRIBB/KRCF Research Initiative Program (NAP), Korea. The published article in this journal was a part of the 2013 Doctoral thesis of Jae-Sung Ryu submitted to Wonkwang University, Korea. and not This research was supported by a grant (Code# PJ0074922012) from the Korean Rural Development Administration, and has been supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education Science and Technology (2010-0022316 and KCG5401011), and the KRIBB/KRCF Research Initiative Program (NAP), Korea.

多點 피토관 流量計의 流量係數 測定에 관한 실험적 연구

임재명,윤복현 木浦大學校 工業技術硏究所 2000 工業技術硏究誌 Vol.10 No.-

The performance of multi-point Pitot tube flow-meter with diamond shape depending on the combination of upstream double elbows was experimentally studied. Actual flow-rates were measured by using ISA 1932 nozzles which are all standard flow-meters. Based on the measured flow-rates the flow coefficients of the multi-point flow-meter could be obtained. The flow coefficients calculated with all the front four holes open agree very well with those calculated by means of the average coefficient for the all holes. Furthermore, the flow coefficients were quite indifferent to Reynolds number variation for the region of ReD> 5.5×104. It is mostly due to the fact that the straightener installed upstream makes the flow more stable and straight than the case without the straightener ahead of the test section.