서울의 Penicillinase Producing Neisseria gonorrhoeae 발생빈도(1998)

김재홍,김준호,반재용,이정우,황성주,정준규,정성태,강진문,조흔정,홍창의,정혜신,이한승,김이선,이봉길,이종호,선영우,한기덕,윤성필,이성훈,안종성,박석범,문승현,조항래,김형섭,류지호,황재영,박준홍,손상욱 한양대학교 의과대학 2001 한양의대 학술지 Vol.21 No.1

In recent years, gonorrhea has been pandemic and remains one of the most common STDs in the world, especially in developing countries. For the detection of a more effective therapeutic regimen and assessing the prevalence of Penicillinase Producing Neisseria gonorrhoeae(PPNG), we have been trying to study the patients who have visited the Venereal Disease Clinic of Choong-Ku Public Health Center in Seoul since 1980 by menas of the chromogenic cephalosporin method. In 1998, 93 strians of N. genorrhoeae were isolated, among which 60(64.5%) were PPNG. The prevalence of PPNG in Seoul, which had been decreased to 39% in 1996 after a peak of 74.3% in 1993, is increased to 64.5% in 1998.

Anti-Inflammatory and Cytoprotective Effects of TMC-256C1 from Marine-Derived Fungus <i>Aspergillus</i> sp. SF-6354 via up-Regulation of Heme Oxygenase-1 in Murine Hippocampal and Microglial Cell Lines

Kim, Dong-Cheol,Cho, Kwang-Ho,Ko, Wonmin,Yoon, Chi-Su,Sohn, Jae Hak,Yim, Joung Han,Kim, Youn-Chul,Oh, Hyuncheol MDPI AG 2016 INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES Vol.17 No.4

<P>In the course of searching for bioactive secondary metabolites from marine fungi, TMC-256C1 was isolated from an ethyl acetate extract of the marine-derived fungus <I>Aspergillus</I> sp. SF6354. TMC-256C1 displayed anti-neuroinflammatory effect in BV2 microglial cells induced by lipopolysaccharides (LPS) as well as neuroprotective effect against glutamate-stimulated neurotoxicity in mouse hippocampal HT22 cells. TMC-256C1 was shown to develop a cellular resistance to oxidative damage caused by glutamate-induced cytotoxicity and reactive oxygen species (ROS) generation in HT22 cells, and suppress the inflammation process in LPS-stimulated BV2 cells. Furthermore, the neuroprotective and anti-neuroinflammatory activities of TMC-256C1 were associated with upregulated expression of heme oxygenase (HO)-1 and nuclear translocation of nuclear factor-E2-related factor 2 (Nrf2) in HT22 and BV2 cells. We also found that TMC-256C1 activated p38 mitogen-activated protein kinases (MAPK) and phosphatidylinositol 3-kinase (PI3K)/Akt signaling pathways in HT22 and BV2 cells. These results demonstrated that TMC-256C1 activates HO-1 protein expression, probably by increasing nuclear Nrf2 levels via the activation of the p38 MAPK and PI3K/Akt pathways.</P>

LANDSTAT 자료를 이용한 유출곡선지수의 추정

조홍제,황재호 울산대학교 2001 공학연구논문집 Vol.32 No.1

수치고도모델을 이용하여 유역의 지형학적 특성을 분석하고, LANDSAT 위성영상을 이용하여 유역의 토지피복상태를 분류한 후 유출곡선지수를 추정하였다. 특히, 우리나라는 유역의 대부분을 산림이 차지하는 피복특성이 있으므로 식생의 다중반사특성을 응용하여 산림지역을 분류하고 유출곡선지수 추정에 응용하였다. 산림지역은 식생의 건강 상태나 밀도에 따라 유출특성이 변화하는데, LANDSAT 위성영상의 다중분광자료를 사용하여 산출한 식생지수는 산림지역을 밀도나 건강상태에 따라 분류하는데 유용하였다. 또한 식생지수를 사용하여 산림지역을 분류한 후 산출한 유출곡선지수는 산림지역을 분류한 후 산출한 유출곡선지수에 비하여 감소하는 것을 확인할 수 있었다. Having analyzed the topographical quality of the basin using Digital Elevation Model and classified land uses by LANDSAT Satellite image, we estimated Runoff Curve Numbers. Most of the basins are characterized by the forest, therefore multiple reflex qualities were used to classify the forest and to estimate Runoff Curve Numbers. Because runoff changes according to the vegetative health and density, the vegetation index derived from the multispectral data of LANDSAT satellite images was useful to classify the forest by its health and density. It was observed that Runoff Curve Number decreased when the vegetation index was taken into account. In conclusion, the mulispectal image was useful to observe special quality and classification of the land.

Profile Index에 따른 Panelipse Ⅱ 放射線 像層의 變化

曺哲鎬,成在鉉 慶北大學校 齒科大學 1985 慶北齒大論文集 Vol.2 No.1

This research was made to investigate the change of the image layer and of the vertical and horizontal magnification on the Panelipse radiographic image by the control of profile index. Using the Panelipse, a series of 60 exposures were taken with the steel balls placed in the holes of the plastic model plate, and then evaluated by 4 observers. Two points were assigned for a reading of sharp, one for middling sharp, and zero for unsharp. Each ball image then could be given a total reader score of 0 to 8. The author analyzed the image layer as defined by a sharpness score of 6 or more. The resutls obtained were as follows: As the profile index was increased, the shape of the image layer was not changed, and the width of the image layer was increased, and the position of the layer shifted away from the rotation center. As the profile index was increased, the ranges of vertical and horizontal magnification was increased, especially the ranges of horizontal magnification was greater than that of vertical magnification.

단백질흡착을 막는 소프트콘택트렌즈에 관한 연구

조종수,정영일,나재운,김성호 朝鮮大學校 1997 藥學硏究誌 Vol.18 No.2

양말단에 이크릴레이트를 갖는 폴리에틸렌글리콜 미크로마(PEG macromer)와 또한 PEG macromer와 폴리하이드록시에칠메타아크릴레이트[P(HEMA)] 혹은 폴리(하이드록시에칠메타아크릴레이트-하이드록시프로메타아크릴레이트-비닐피롤리돈)[P(HEMA-co-HPMA-co-NVP)]와 상호침투된 망상구조의 시료가 소프트콘텍트렌즈의 알부민의 흡착을 막기위하여 제조되었다. PEG macromer의 중합으로 macromer의 다관능성기로 인하여 가교된 겔이 형성되었다. P(HEMA-co-HPMA-co-NVP)/PEG IPN계 콘텍트렌즈에서 PEG분자량이 중가할수록 알부민의 흡착량은 감소되었다. 또한 IPN제조시의 PEG의 농도가 짙을수록 알부민의 흡착량은 감소되었다. PEG macromer와 IPN하기전의 P(HEMA)계 및 P(HEMA-co-HPMA-co-NVP)계의 콘텍트렌즈에 비하여 PEG macromer와 IPN함으로서 렌즈의 착용감이 훨씬 상승되었다. Poly(ethylene glycol)(PEG) macromers terminated with diacrylate groups and interpenetrating polymer networks(IPN) composed of poly(hydrowyethyl methacrylate)(PHEMA) or poly(hydrowyethyl methacrylate-co-hydroxypropyl methacrylate-co-N-vinyl pyrrolidone)[P(HEMA-co-HPMA-co-NVP)]and PEG macromer were synthesized with the aim of abtaining protein adsorption resistant soft contact lens. Polymerization of PEG macromer. Crosslinked p(HEMA)or P(HEMA-co-HPMA-co-NVP) chains were interpenetrated into the cross-linked three-dimensional networks of PEG. It was found that albumin adsorption onto the contact lens prepared by P(HEMA-co-HPMA-co-NVP)/PEG IPN decreases with an increase of molecular weight of PEG. Also, it was found that albumin adsorption onto the both contact lens decreases with an increase of concentration of PEG macromer in the IPN preparation. There are also more adequate in the biointerness for the contact lens by P(HEMA)/PEG IPN or P(HEMA-co-HPMA-co-NVP)/PEG IPN than that by P(HEMA) or P(HEMA-co-HPMA-co-NVP).

기종성 신우신염의 임상양상 및 사망위험인자

조수연,이호재,조용현,이승주 대한감염학회 2009 감염과 화학요법 Vol.41 No.1

Background : Emphysematous pyelonephritis (EPN) is an acute gas forming necrotizing infection of the renal parenchyma with high mortality. Although its incidence is relatively low, it mostly occurs in patients wiith diabetes mellitus. The aim of the study is to identify the risk factors related to mortality and assess the outcome of managements according to the radiologic classification. Materials and Methods : The clinical records of 23 patients diagnosed with EPN were reviewed retrospectively. The cases were grouped into two types on the basis of computed tomography scan. Type 1 EPN was defined as renal necrosis and gas formation with total absence of fluid content. Type 2 EPN was defined as the presence of renal or perirenal fluid in association with bubbly or loculated gas pattern. The patients' symptoms, performed investigations, and treatments were analyzed. Results : All patients had diabetes mellitus. Escherichia coli (78.6%) was the most common pathoqen in urine and blood cultures. The factors showing statistically significant differences between survivors and non-survivors were age (P=0.013), the presence of obstructive uropathy (P= 0.008), and type 1 group (P=0.030). Multivariate logistic regression showed that factor significantly related to death was age (odds ratio=1.20, 95% confidence interval 1.01-1.38, P=0.037). Conservative treatment including antibiotics and percutaneous drainage was successful in type 2 group, Overall mortality was 26.1%; all expired patients were from type 1 group. The mortality of conservative treatment and nephrectomy in type 1 group was 83.3% and 20.0%, respectively. Conclusion : These results suggest that old age is a significant risk factor for mortality in patients with EPN. Nephrectomy should be considered as the main treatment option in patients with type 1 EPN.

공동주택 현장 실험을 통한 바닥복사냉방의 성능평가

조영흠,임재한,석호태,여명석,김광우 대한건축학회 2004 대한건축학회논문집 Vol.20 No.11

The objective of this study is to analyze the performance evaluation of the Radiant Floor Cooling and the dehumidification system included in the integrated system may be utilized as a supplementary cooling device through field experiments. The experiments are performed to evaluate the performance of the radiant floor cooling and confirm the possibility of continuous cooling through the actual field experiments, moreover, analyze specific characters of the radiant floor cooling system according to varying the load conditions which is able to happen to field. Experiment results show that the permissible ambient temperature range was determined by cooling load calculations, and the cooling capacity was calculated from steady-state heat transfer equations. Under these conditions, experiments were performed for an actual apartment building assuming two occupants. During 80% of the cooling period, radiant floor cooling provides sufficient and continuous cooling. The results of analyzing the indoor thermal environment in the actual apartment building show that the set room air temperature is maintained while the floor surface temperature, vertical temperature distribution and PMV remain within the comfort range.

스포츠參加者의 Lifestyle에 관한 要因分析

조재호,조만태,안영필 東亞大學校附設스포츠科學硏究所 1992 스포츠科學硏究論文集 Vol.10 No.-

The purpose of this study is to apply and test lifestyle concept in the field of sports behavior research. The AIO(Activities, Interests, and Opinions) approach is used to operationalize the lifestyle concept. Questionnaires containing 63 AIO statements are admistered to a total 600 members of a private sport club in Busan. 452 usable questionnaires were returned, resulting in a response rate of 75.3%. The sampling was chosen by the stratified random sampling Method. Analysis Method was used factor analysis to identify. The overall structure of club member's lifestyle the main result of the study : There exist eight factors representing dimensions of club member's lifestyle, there are named as sensitive of fashion, preference of Brend, Achievement, stability directed, self-confidence, Nihilism, Health-Conscious, self-affirmative.

SOL-GEL법을 이용한 강유전체 BaTiO₃박막 및 Ceramics 제조

조채룡,이수재,장민수,김호종,정세영,노동택,김성철 동의대학교 기초과학연구소 1993 基礎科學硏究論文集 Vol.3 No.1

Concentrated solution was prepared for a sol-gel process of BaTiO₃. Barium hydroxide and Ti-isopropoxide were used as the raw materials with methanol and isopropanol as solvents. Dense ferroelectric polycrystalline BaTiO₃thin films with the perovskite structure were fabricated by spin coating of the prepared concentrated solution on a few substrates. From XRD investigation, it was confirmed that tetragonal phase of polycrystalline BaTiO₃powders are formed after heat treatment above 550℃ in air and grain-oriented BaTiO₃thin films are obtained by coating of 0.06M concentrated solution on the substrates. It was observed that surfaces of thin films deposited on the substrates by our methods were formed crack-free and uniformly. The thickness of thin film which depends the concentration of the solution was 400∼900Å for 1 time coating, which was confirmed by SEM analysis. Ceramics and thin films show dielectric constant of 4600 (at 1㎑) and capacitance 300∼800㎊ (at 1㎑) at room temperature, respectively.

구순구개열 환아에서의 치조골이식

조해성,박재홍,김광철,최성철,이긍호,최영철 대한소아치과학회 2007 大韓小兒齒科學會誌 Vol.34 No.1

치조파열 및 구개열과 같은 선천성 기형은 이환된 환자에게 기능적, 심미적으로 많은 문제점을 야기하므로 정상으로 회복시켜 주는 것은 중요한 문제이다. 장기간 방치될 경우 영양장애, 구강위생 불량, 호흡기 간염, 언어 장애, 악안면 변형, 그리고 정신적인 문제 등이 복합적으로 발생할 수 있다. 따라서 구순구개열 환자의 치료는 여러 전문 치료 분야의 복합적인 접근이 필요하다. 골이식은 구순구개열 환자에 있어 중요한 치과치료 단계이다. 치아의 맹출과 치열의 안정화를 위해 치열궁은 골격손이 없이 완전해져야 한다. 또한 치열궁의 파열이 있는 부위로는 정상적인 교정적 치아이동이 곤란하다. 따라서 구순구개열 환자에 있어 골이식은 광범위하게 적용되고 있는 외과적 술식이다. 치조골을 이식함으로써 치조열은 안정화되고, 견치 또는 절치가 이식부위로 이동할 수 있게 된다. 그리고 골 이식 후, 교정을 통해 치조열 부위의 공간을 폐쇄함으로써 보철 치료 없이 치열을 재형성할 수 있다. 골이식술에는 다양한 이식재료가 사용되었다. 자가골을 이식할 경우 장골이 가장 선호되며, 그 밖에 경골, 늑골, 두개골, 하악골을 이용하기도 한다. 그리고 골이식은 골이식 시기에 따라 일차골이식, 조기 이차골이식, 이차골이식, 만기 이차골이식으로 구분할 수 있다. 이차골이식은 혼합치열기 말경에 시행되는 것을 말하며 가장 좋은 것으로 받아들여지고 있다. 영구 견치가 맹출되기 전에 이차골이식을 시행하면 인접치아의 맹출과 보존에 도움이 된다. 본 증례에서는 치조구개파열 환자의 장골에서 골을 채취하여 골 이식을 시행한 후, 골이 채워진 이식 부위에 인접 치아가 성공적으로 이동하거나 치축이 개선되고 교정치료를 통해 치열궁 배열의 만족스러운 결과를 얻었기에 이를 보고하는 바이다 Cleft lip and palate are congenital craniofacial malformation. Reconstruction of dental arch in patient with alveolo-palatal clefts is very important, because they have many problems in functions and esthetics. Malnutrition, poor oral hygiene, respiratory infections, speech malfunctions, maxillofacial deformity, and psychological problems may be occured without proper treatment during the long period of management of the cleft lip and palate. So the treatment should be managed with a multidisciplinary approach. Bone grafting is a consequential step in the dental rehabilitation of the cleft lip and palate patient. A complete alveolar arch should be achieved of the teeth to erupt in and to form a stable dentition. And the presence of the cleft complicate the orthodontic treatment. Therefore bone grafting in patients with cleft lip and palate is a widely adopted surgical procedure. Grafted bone stabilizes the alveolar process and allows the canine or incisor to move into the graft site. After the bone grafting, orthodontic closure of the maxillary arch has become a common practice for achieving dental reconstruction without any prosthodontic treatment. Various grafting materials have been used in alveolar clefts. Iliac bone is most widely fovoured, but tibia, rib, cranial bone, mandible have also been used. And according to its time of occurrence, the bone graft may be divided into primary, early secondary, secondary, late secondary. Bone grafting is called secondary when performed later, at the end of the mixed dentition. It is the most accepted procedure and has become part of treatment of protocol. A secondary bone graft is performed preferably before the eruption of the permanent canine in order to provide adequate periodontal support for the eruption and preservation of the teeth adjacent to the cleft. In this report, we report here on a patient with unilateral cleft lip and palate, who underwent iliac bone graft. The cleft was fully obliterated by grafted bone in the region of the alveolar process. The presence of bone permitted physiologic tooth movement and the orthodontic movement of adjacent tooth into the former cleft area. Satisfactory arch alignment could be achieved in by subsequent orthodontic treatment.