열공형과 비열공형 피질하 혈관성 치매에서 위험인자의 차이에 관한 비교 연구

배희준,정지향,유경호,나덕렬,김상윤,최경규,양동원,손의주,이상도,김재우,박경원,김응규,이재홍,박미영,한일우,함동석,최문성,하충건,최성혜,이애영,이병철,한설희 대한치매학회 2003 Dementia and Neurocognitive Disorders Vol.2 No.2

Backgrounds and Objectives: Vascular dementia is a group of dementing disoders arising from various stroke syndrome. Among these. subcortical ischemic vascular dementia (SIVD) is regarded as a relatively distinct clinical entity. However, MRI patterns of SIVD are not homogenous. In some patients, lacunes are dominant, and in others, subcortical white matter changes are. This study was designed to compare risk factor profiles between SIVD with and without multiple lacunes. Methods: We divided 47 subjects (22 males, mean age. 68 years) recruited from VADAPET (Multicenter Trial For Evaluation Of The Changes In the PET Images Of Subcortical Vascular Dementia Patient) study into two groups one with more than 5 lacunes in deep gray matter (lacune group) and the other with 5 or less(non-lacune group) Clinical characteristics and laboratory findings of two groups were compared. Results: Nineteen of 47 patients (40%) belonged to the lacune group. The lacune and non-lacune groups d d not differ in the following variables: age, hypertension, diabetes mellitus, hyperlipidemia heart disease, history of stroke or TIA, history of trauma or major surgery, family history of hypertension stroke, or dementia, age at diagnosis of dementia, body mass index, white blood cell count, ESR, CRP, fibrinogen, hemoglobin A1C, total cholesterol. LDL cholesterol creatinine, proteinuria, glucosuria, and microhematuria. However, male sex, smoking alcohol. hemoglobin, and HDL cholesterol were possibly associated more with lacune group SIVD than with non-lacune group (p<0 1) Multivariate analyses revealed that smoking, hemoglobin, and HDL cholesterol were independent predictors of SIVD with multiple lacunes Conclusion: Our study suggests that SIVD with multiple lacunes may be significantly different in smoking habits hemoglobin, and HDL cholesterol from SIVD without multiple lacunes.

중합효소연쇄반응을 이용한 도말양성 폐결핵 환자에서의 결핵균 DNA 검출방법에 관한 연구

이종진,김애경,조해정,한표성,홍석철,김주옥,김선영 충남대학교 의과대학 지역사회의학연구소 1994 충남의대잡지 Vol.21 No.2

Polymerase chain reaction (PCR) is the most sensitive and rapid method for the diagnosis of M.tuberculosis infection. Many reports have shown different methods for mycobacterial DNA extraction, but revealed many differences in simplicity and time-consumption. We studied which method was the best among 7 different ones for DNA extraction from 32 smear-positive sputa, using PCR of targeting 123bp DNA fragment of IS6110. The methods were the following : SDS-Microwave oven method, NaOH Lysis method, Triton X-100, Proteinase K method, Lysis buffer method. SDS-Proteinase K method, Bead Beater method, and Bead Beater/CTAB method. The amplification products were identified by electrophoresis on ethidium bromide-stained agarose gels, and confirmed by restriction enzyme, Southern blot hybridization, and DNA sequencing. All 32 cases were positive (100%) by the 7 different methods. It took 1 hour or more to detect DNA in SDS-Microwave oven method, NaOH Lysis method, and Bead beater/CTAB method. It took 2 hours or less in the others. SDS-Proteinase K method and Bead Beater/CTAB method were simpler and more convinient than the others. These results suggest that SDS-Proteinase K method and Bead Beater/CTAB method might be better than the others for the extraction of mycobacterial DNA in terms of simplicity and time-consumption, although all the methods were sensitive.

비영리법인의 과세제도에 관한 연구

이주성 忠州大學校 2007 한국교통대학교 논문집 Vol.42 No.-

Knowledge information society in 21st century emphasizes the social responsibility for the increase of welfare and public benefit so that the corresponding role has been expanded. Thus, the government is more obliged to improve the social welfare and public interests. However, the government alone cannot afford to meet the rapidly increasing social and economic needs, and therefore, the roles of the non-profit corporations become more and more important to support the government function, while people are more concerned about the tax systems related to establishment and activities of the non-profit corporations. With such basic conceptions in mind, the purpose of this study is to suggest the improvement for the tax system of non-profit corporation in comparison with foreign systems. To accomplish this objective, this study reviewed the existing relevant studies and literatures. By the results of this study, I suggested some improvements for two aspects of the corporation income tax and the value-added tax. The findings of this study will contribute to the settlement and development of the non-profit corporation in Korea.

W/O 마이크로에멀젼에 의한 나노크기의 TiO₂/SiO₂ 합성에서 물/계면활성제의 몰 비(W_(0)) 영향 및 그 광분해 특성

이만식,주창식,이근대,홍성수 한국화학공학회 2003 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.41 No.4

나노크기의 TiO₂/SiO₂입자는 음이온 계면활성제 AOT(sodium bis(2-ethylhexyl) sulfosuccinate)를 사용하여 W/O 마이크로 에멀젼에서 TTIP(titanium isopropoxide)와 TEOS(tetraethylorthosilicate)의 가수분해 반응에 의해 제조하였다. 그때 TEOS의 몰분율은 0.1이였다. 나노입자 제조시 W_(0)(H₂O/AOT)비에 따른 열적안정성, 표면적, 결정성 및 결정크기 등과 같은 물리적 특성은 TEM, XRD, BET, FT-IR, TGA-DTA 등을 사용하여 분석하였다. 또한 광촉매적 특성을 알아보기 위해 회분식 반응장치를 이용하여 p-니트로페놀의 광분해 활성을 조사하였다. 제조된 Ti0₂/SiO₂ 나노입자는 열처리 온도 105℃, 300℃에서 비결정구조를 가졌으며, 소성온도 800℃에서는 Ti0₂ 결정입자 내에 무정형의 SiO₂로 인해 열적 안정성이 증가되었고, 여전히 anatase 결정을 유지하였다. 그리고 Ti0₂/SiO₂(90/10) 입자에서 SiO₂ 결정은 관찰되지 않았다. 제조된 촉매는 대체로 구형이며 아주 균일한 분포를 갖는 것으로 관찰되었다. W_(0) 비가 증가할수록 결정크기는 증가되었고, 표면적은 감소하는 경향을 나타내었다. 또한 p-니트로페놀에 대한 광분해 활성은 순수한 Ti0₂ 보다 Ti0₂/SiO₂(90/10) 촉매가 우수하였다. Nanosized TiO₂/SiO₂ particles were prepared by hydrolysis of TTIP (titanium isopropoxide) and TEOT (tetra-ethylorthosilicate) in sodium bis (₂-ethylhexyl)sulfosuccinate (AOT) reverse micelles. The mole fraction of TEOS was 0.1. The physical properties, such as surface area. thermal stability, crystallite size and crystallinity according to W_(0), ratio have been investigated by TEM, XRD, BET, FT-IR, TGA and DTA. In addition. the photocatalytic degradation of p-nitrophenol has been studied by using batch reactor in order to compare the photocatalytic activity of prepared nanosized TiO₂/SiO₂, particles. It is shown that the XRD pattern of the particle heat treated at 105℃ and 300℃ indicates amorphous and the major phase of all the prepared particles were anatase structure. No significant rutile phase was observed although the calcination temperature at 800℃ and no peaks SiO₂ crystal were also observed for TiO₂/SiO₂ (90/10). The presence of amorphous SiO₂ in TiO₂/SiO₂ particle enhanced the thermal stability of TiOz particle resulting in the suppression of the phase transformation from anatase to rutile phase. The crystallite size of prepared particles decreased with decreasing W_(0) ratio. The surface area increased with decreasing W_(0) ratio. In addition, TiO₂/SiO₂ (90/10) particles shows higher photoactivity than that of pure TiO₂ particles.

리튬 이온 2차전지용 Anode 재료의 제조와 그 특성 고찰

이주성,정윤이,변지형,박은성,유덕영 한양대학교 에너지·환경기술연구소 1997 에너지·環境技術論文集 Vol.3 No.-

Carbon materials, disordered carbon and KS6(graphite, Lonza), were studied as anode materials of lithium ion secondary battery. The disordered carbons were made from thermosetting resins (phenol resin, furan resin, acetylene resin and its mixed resin). The resins were carbonized in nitrogen gas at 1000℃. When the thermosetting resins were carbonized, an addition of lithium hydroxide improved capacity and cycle life, but decreased the efficiency of the first charge/discharge. Also, in this study, the capacity of the carbon from phenol resin was higher than that of the carbon from acetylene resin or furan resin. But, the carbon from mixed resin was the highest capacity of all the synthetic carbons.

演習林 木本植物 調査에 관한 硏究

李命器,全哲,吳正壽,金成柱 圓光大學校大學院 1987 論文集 Vol.1 No.-

1. The tree grown in the university forest consisted of 54 families, 69 genera, 167 species, 15 varieties, 2 forma, so that the totaling were 185 taxa. 2. At a height of 500 meters over, the forest mostly consisted of Quercus variabilis forest. 3. We need to collect cork from Quercus variabilis growned massively and have enlarged artificial reproduction than now. 4. Cryptomeria japonica forest area that artificially reproducted at 11 block is a model managed forest. 5. According to the results, because the species defined the temperate zone, it is not suitable for the practice of students. Therefore, we need the positive act of university so that the forest species obtain the other forest zone.

IMT-2000 환경에서 Block Design을 응용한 회의용 인증메카니즘의 설계

이여진,김중태,조영주,유성진,배용근 조선대학교 전자정보통신연구소 2003 電子情報通信硏究所論文誌 Vol.6 No.1

In this paper, we present conference key authentication mechanism by employing an algebraic method on IMT-2000 environment To accomplish this, Symmetric Balanced Incomplete block design is applied for generating the communication key and then this key is distributed to participants Through this technique for creating a conference key and mutual authentications performed based on identification information, the communication protocol is designed The protocol presented minimizes the transmission complexity for generating a conference key On a special case the time complexity is O(v√v), where v is the number of participant. The security of the mechanism, which is a significant problem in the construction of Secure system, can be, proved as computationally difficult to calculate as factoring and discrete logarithms.

골격성 III급 부정교합자에서 술 전 교정치료 전과 후의 수술계획의 차이

이은주,손우성,박수병,김성식 대한치과교정학회 2008 대한치과교정학회지 Vol.38 No.3

본 연구는 술 전 교정치료 전 치아 이동 예측치(initial STO)와 술 전 교정치료 후 실측치에 바탕을 둔 STO (finalSTO)를 비교하고자 시행되었다. 부산대학교병원 치과교정과에 내원하여 교정 및 악교정수술 복합치료를 시행 받은 환자 중 하악만 수술한 환자 40명을 선정하여 상악 제1소구치 발치 여부에 따라 두 그룹(발치 그룹 20명, 비발치그룹 20명)으로 분류하였다. 술 전 교정치료 전의 initial STO, 술 전 교정치료 후의 final STO를 작성하여 각 계측치를 수평, 수직 기준선에 대해 거리를 측정하여 비교하였다. 발치 그룹의 두 STO 비교 시 수직적으로 상악 중절치절단연과 치근단, 상악 제1대구치 협측교두에서, 수평적으로 상악 중절치 절단연, 상악 제1대구치 근심협측교두, 하악 중절치 치근단, 하악 제1대구치 근심면과 근심협측교두에서 차이를 보였으며 비발치 그룹의 경우는 수직적으로 하악 중절치 치근단, 수평적으로 상악 중절치 절단연, 하악 중절치 절단연과 치근단, 하악 제1대구치 근심면에서 차이를 보였다. 두 STO의 차이와 initial STO 수립에 영향을 미칠 수 있는 여러 진단 요소와의 상관성 평가 시 상악 치열궁 공간 부족량이 상악 전치의 수평, 수직 및 제1대구치의 수평 위치 예측에 유의한 상관성을 가졌으며 두 그룹 모두 하악 전치 치축 각도와 하악 치열궁 공간 부족량이 하악 전치의 수평 위치 예측에 유의한 상관성을 보였다. InitialSTO 작성과 술 전 교정 단계에서 이를 고려하여 진행한다면 좀 더 효율적인 치료 계획 수립 및 전체적인 치료 기간을 줄이는 것에도 도움이 될 것이라 생각한다. and final STO in Class III malocclusions and to find which factors are related to the discrepancies. Methods: Twenty patients were selected for the extraction group and 20 patients for the non-extraction group. They were diagnosed as skeletal Class III and received presurgical orthodontic treatment and mandibular set-back surgery at Pusan National University Hospital. The lateral cephalograms were analyzed for initial STO (T1s) at pretreatment and final STO (T2s) after presurgical orthodontic treatment, and specified the landmarks as coordinates of the X and Y axes. Results: Differences in hard tissue points (T1s-T2s) in the X coordinates of upper central incisor edge, upper first molar mesial end surface, lower central incisor apex, lower first molar mesial end surface and mesio-buccal cusp and Y coordinates of upper central incisor edge, upper central incisor apex, upper first molar mesio-buccal cusp were statistically significant in the extraction group. Differences in hard tissue points (T1s-T2s) in the X coordinates of upper central incisor edge, lower central incisor apex, lower first molar mesial end surface and Y coordinates of lower central incisor apex were statistically significant in the non-extraction group. In the extraction group, the upper arch length discrepancy (UALD) had a statistically significant effect on maxillary incisor and first molar estimation. Lower arch length discrepancy and IMPA had statistically significant effects on mandibular incisor estimation in both groups. Conclusions: Discrepancies between initial STO and final STO and factors contributing to the accuracy of initial STO must be considered in treatment planning of Class III surgical patients to increase the accuracy of prediction.

Systemic Lupus Erythematosus를 동반한 Multiple sclerosis

이지현,이기주,윤성호,부귀범,손현화,박유환,정춘해,김진호,정원영 조선대학교 부설 의학연구소 1998 The Medical Journal of Chosun University Vol.23 No.2

Multiple sclerosis and lupus erythematosus are chronic, potentially disabling diseases of unknown cause. It is a rare occasion that the finding of both diseases occurs in one patient. Because both diseases may affect the central nervous system, it may be difficult at times to differentiate symptoms of lupus erythematosus from those of multiple sclerosis. As far as we know, there was no case report of SLE in multilple sclerosis in Korea. We report a case of multiple sclerosis accompanied by SLE.

만성 간질환에 대한 DDB(Biphenyl Dimethyl Dicaboxylate)의 임상적 효과

이헌영,임의혁,김성걸,김진희,육은주,성자원,김병호,정형용,강대영,김영건 충남대학교 의과대학 지역사회의학연구소 1994 충남의대잡지 Vol.21 No.2

To investigate the effects of short-term administration of DDB(Biphenyl Dimethyl Dicarboxylate) for decreasing elevated serum aminotransferase levels in chronic liver diseases, authors applied 3 capsules of DDB per day at each meal time for 35 patients and compared with 35 patients treated with other conservative management. The following results were obtained. 1. Serum alanine aminotransferase (ALT) levels significantly decreased from 247.1± 180.0 IU/L of pretreatment level to 96.6±126.0 IU/L, 61.1±62.7 IU/L and 38.0±26.8 IU/L after 1, 3 and 6 months of treatment(p<0.05) and effective rates were observed in 60.0%, 71.4% and 88.6% of patients after 1, 3 and 6 months of treatment. 2. Serum aspartate aminotransferase (AST) levels decreased also significantly from 167.8±96.9 IU/L of pretreatment levels to 124.4±155.0 IU/L, 77.9±49.6 IU/L, 60.6± 46.9 IU/L after 1, 3 and 6 months of treatment(p<0.05), but decreasing pattern of serum AST was less significant than that of serum ALT. 3. No significant difference were observed in the serum ALT and AST changes according to the cause and duration of hepatitis. 4. No significant adverse effects were observed in whole patients treated with DDB. It is suggested that small dose administration of DDB is effective for decreasing serum aminotrans ferase levels in chronic liver disease in which other conservative management was not effective.