정신분열병 환자에서 존속살인의 임상적 특성

안병훈,최상섭,안성호,하태현,김선범,권경희,김정현 大韓神經精神醫學會 2008 신경정신의학 Vol.47 No.4

Objectives : This study aimed to describe the demographic, clinical and offense characteristics of the patients with Schizophrenia who committed parricide. This study also investigated the risk factors of parricide by comparing with characteristics of stranger killers to prevent the tragic offense. Methods : The sample consisted of 88 schizophrenic patients who committed homicide, 59 of them committed parricide and 29 of them killed strangers. Medical chart review regarding demographic and clinical characteristics as well as offense Characteristics was conducted. The information that was difficult to be obtained through chart review was acquired by direct interview. Results : Parricide group had earlier age of onset, more conflicts with the victims, more violence history toward victims and more offense provoking events than stranger killing group. Parricide group showed higher rate of past treatment than that of stranger killing group. However drug compliance at the time of offense was low in both groups. Offense provoking events in the parricide group included blaming, threatening a forced hospitalization or medication toward patients. The most common Psychiatric symptoms associated with homicide were threat/control override (TCO) symptoms, delusional perception, commanding auditory hallucination and especially with parricide, Capgras syndrome (CS). Conclusion : Interaction between psychotic symptoms such as TCO, CS and underlying emotion toward victims are likely to be associated with parricide. Mental health professionals are expected to play an important role in preventing this tragic offense by active history taking of the violence and effective management with active caregiver education/intervention of intrafamilial conflicts.

녹차 및 결명자 추출물의 치주조직병 원인균에 대한 억제효과

이은숙,안태영,윤정중,국중기,이병래,김동기 대한구강보건학회 2003 大韓口腔保健學會誌 Vol.27 No.4

It is known that the periodontal disease is caused by infection of inner oral bacteria as a suffering disease to human mankind for a long time. It can make the various clinical symptoms such as gingiva, bleeding, formation of periodontal pocket, loss of attached gingiva, collapse of alveolar bone and halitosis, and is known to the major contributor of loss of teeth. This study investigated the growth restraint effect of Camellia sinensis and Casia tora. As a result of study, the minimum restraint concentration of standard microbe on F. nucleatum for extracts from C. sinensis showed 2.5, 0.63 and 1.25 mg/ml, respectively and minimum restraint concentration of clinical separation microbe on F. nucleatum for extracts from C. sinensis showed 2.5 and 5.0 mg/ml. The minimum restraint concentration of standard microbe and clinical separation microbe, respectively. Meanwhile, the minimum restraint concentration of standard microbe and clinical separation microbe on F. nucleatum for extracts from C. tora showed 2.5 and 2.5-5.0 mg/ml, respectively. The minimum restraint concentration of standard microbe and clinical separation microbe for P. intermedia, P. nigrescens, P. gingivalis, and P. endodontalis showed above 5.0 mg/ml for standard microbe and above 5.0 mg/ml for clinical separation microbe, respectively. As a result of investigating the cell toxicity for each extracts, extracts from C. sinensis does not showed the toxicity for the cell below the concentration of 2.5 mg/ml, but it showed toxicity for the cell above concentration of 2.5 mg/ml and it decreased the existence ratio for the cell. Meanwhile, in the case of C. tora, it increased the multiplication ratio below the concentration of 1.25 mg/ml compared to the subject group and it decreased gradually the multiplication ratio that the growth ratio for the cell is increased better than subject group. As a result of this study, extracts from C. sinensis was more effect on the growth restraint effect against periodontopathogens than extracts from C. tora and is proven that it is possible for use as a oral mouthrinsing liquids in the near future. On the basis of results of this study, it is judged that the study for reaction mechanism and discrete clinical test for implementation should be needed.

유압 인버터 엘리베이터에서의 극저속 속도제어를 위한 퍼지논리 제어기의 설계

한권상,김병화,이우철,장태호,이건학,사공석진,안현식,김도현 대한전자공학회 1999 夏季綜合學術大會 論文集 Vol.22 No.1

In this paper, a fuzzy logic controller is designed for speed control of a hydraulic inverter elevator. Mathematical modeling of an elevator actuated with hydraulic system is presented and the friction characteristics of a cylinder is examined, which may cause the abrupt increase of the acceleration in the zero-crossing speed region. Simulation results show that the proposed fuzzy logic speed controller yields a better control performance than conventional PID controller.

철골보-기둥 용접 접합부의 초기강성에 관한 연구

손상해,김순태,유병억,안형준 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.1(구조계)

The purpose of this study was to propose the initial stiffness of steel welded beam-to-column connection. To simplify the analysis, neglect the influence of welding and fillet of H-section beam. According to the parameter(ζ), initial stiffness(K_(i)) increased by ratio of section modulus(Z_(b)/Z_(c)) and decreased by ratio of width/thickness. Result of analysis, range of moment resistance is 0.50M_(F)~1.00M_(F) (Unstiffened Welded Connection), 0.77M_(F)~1.00M_(F) (Continuity Plates Welded Connection) and initial stiffness(K_(i)) is 1.36×10^(8)~24.5×10^(8)(kgf·cm)(Unstiffened Welded Connection) 3.79×10^(8)~33.3x10^(8)(kgf·cm)(Continuity Plates Welded Connection).

Propylthiouracil에 의한 중증 급성간염 1예

임종주,심미령,이명수,김태현,오석규,안선호,박무림,김남호,박병현,조성구 圓光大學校 醫科學硏究所 2002 圓光醫科學 Vol.17 No.2

PTU에 의한 간염의 발생은 매우 드물게 발생하는 것으로 알려져 있으나 저자들은 Graves씨 병으로 진단 받고 propylthiouracil 투여를 받고있던 환자에서 중증의 급성 간염이 발생한 1예를 경험하였기에 보고하는 바이다. Propylthiouracil is widely used to treat patients with hyperthyroidism. This drug has been associated with severe hepatotoxicity rarely. We presented the case of jaundice and profound liver dysfunction from a 23-year old woman treated with propylthiouracil for hyperthyroidism. Viral, metabolic, and autoimmune liver disease could be excluded and liver biopsy revealed a pattern of acute hepatitis. After discontinuing the drug, there was a progressive resolution of hepatic symptoms and decrease in biochemical data of the liver. Despite propylthiouracil induced hepatitis in rare case, patients receiving propylthiouracil are exposed to develope severe hepatotoxicity. Therefore it might be advisable to monitor level of the transaminase on regular base from patients receiving propylthiouracil.

Ce_(0.8)Zr_(0.2)O₂ 촉매를 이용한 Dimethyl Carbonate 합성에서 탈수제 첨가의 영향

한기보,전진혁,박노국,이종대,류시옥,이태진,이병권,안병성 한국공업화학회 2004 응용화학 Vol.8 No.1

The effect of dehydrating agent in DMC(dimethyl carbonate) synthesis from methanol and carbon dioxide over Ce_(0.8)Zr_(0.2)O₂ catalyst was studied in this work. Ce_(0.8)Zr_(0.2)O₂ catalyst having the best activity among Ce_(1-x)Zr_(x)O₂ catalysts was selected. We could supposed that the addition of dehydrating agents improved the DMC yield by H₂O elimination. When the dehydrating agents such as Na_(2)SO₄ or K₂SO₄ was added into the synthesis of DMC, the formation amount of DMC increased to about 0.8∼0.9 mmol through the elimination of formed H₂O as by-product.

Experimental investigation of supercavitating flows

Ahn, Byoung-Kwon,Lee, Tae-Kwon,Kim, Hyoung-Tae,Lee, Chang-Sup The Society of Naval Architects of Korea 2012 International Journal of Naval Architecture and Oc Vol.4 No.2

When the object is traveling in the water at tremendously high speeds, the cavity forms and grows up at a fore part of the object called cavitator, and the object is eventually enveloped by vaporized water, supercavitation. As a result, the only part of the object in direct contact with the water is the cavitator, so skin-friction drag is significantly reduced. This is why recently supercavitating objects have been interested in many applicable fields. In this study we are focused out attention on supercavitating flows around various shapes of two and three dimensional cavitators. First, general features of supercavitation are examined by analyzing results obtained by the previously developed numerical method. Second, experimental observations are carried out at a cavitation tunnel at the Chungnam National University (CNU CT), and supercavity dimensions are scrutinized.

DFT 연산 FPGA 모듈에 기반한 위상 측정 앨고리즘의 구현

安炳善(Byoung-Sun Ahn),金炳一(Byoung-Il Kim),張泰奎(Tae-Gyu Chang) 대한전기학회 2005 전기학회논문지 D Vol.54 No.3

婚俗의 親迎에 對하여

安秉台(Ahn Byoung-tae) 한국민속학회 1972 韓國民俗學 Vol.5 No.1

In Korean matrimonial customs from anicent times until the Koryo dynasty a bridegroom as a general rule used to make a temporary stay at his bride’s house. Since the Koryo dynasty the newly married man engoyed a short sojourn at his wife’s house. But what with the influence of Confucianism and what with the Social system to hold a man in esteem, the nuptial manners suffered harsh citicism : thus a new marriage customs what was called “Chin-young (親迎)” : a bride was removed to her hushand’s house, was brought into effect in the reign of the King Saejong of Lee dynasty. Despite encouraging the procedure into execution by the Saejong Administration and Confucians, a remarkable result was not produced. Since old days there was another particular marriage customs called “Samil-Daeban(三日對飯)” : on the first dsy a wild goose was made a victim to God, on the second day the bridegroom’s friends were treated to a dinner, on the third day finally the wedding ceremony was celebrated. This wedding procedure is regarded as an ancient matrimonial manners : a bridegroom used to stay at his wife’s house for long, nowdays it remained to exert some influence over the three days-sojourn of a bridegroom at his wife’ house. The complicated manners of both “Samil-Daeban” and “Chin-Yong” was obliged to be transformed into a new nuptial procedure called “half-Chin Young” : on the wedding day the matrimonial service was held on the next day a bride took a removal to her husband’s house. Even the present time this “half-Ching Young” retains universal influence over most of the Korean nuptial customs. Thus the old Korean matrimonial traditions, a bridegroom made a long stay at the bride’s house, is gradually converted into a new one, and the bride removes to the bridegroom’s house soon after a few days-sojourn of the husband.

Early-Stage Vascular Response between Bare Metal Stent and Drug-Free Bioresorbable Vascular Scaffold in the Small-Sized Peripheral Artery: A Preclinical Study in Porcine Femoral Arteries

Ahn, JiHun,Rha, Seung-Woon,Choi, Byoung Geol,Park, SangHo,Choi, Woong Gil,LI, H.U.,Yu, HyeYon,Byeon, JinSu,Moon, Sang Ki,Do, Sang Tae Elsevier 2019 Annals of vascular surgery Vol.60 No.-

<P><B>Background</B></P> <P>The clinical benefits and outcomes of the interventional treatment of small-sized infrapopliteal arteries using stent implantation remain uncertain. The aim of this study was to compare the safety and efficacy of drug-free bioresorbable vascular scaffold (BVS) with that of bare metal stent (BMS) in endovascular treatment of small-sized peripheral arteries.</P> <P><B>Methods</B></P> <P>In this study, drug-free BVS and BMS were used in eight porcine models. We compared the angiographic and histomorphometric findings in the two groups at 4 weeks. In each pig, BVS and BMS of adequate sizes were implanted in the small branch (<3 mm) of the femoral artery. Angiography, intravascular ultrasound (IVUS), and histomorphometric analysis were performed at 4 weeks.</P> <P><B>Results</B></P> <P>In the 4-week follow-up angiography and IVUS examination, the minimal luminal diameter was smaller and diameter stenosis was more severe in the BVS group. Histomorphometric findings indicated that the lumen area in the BVS group was smaller (0.34 ± 0.28 mm<SUP>2</SUP> vs. 1.40 ± 0.52 mm<SUP>2</SUP>, <I>P</I> < 0.001), whereas the neointimal area (2.70 ± 1.28 mm<SUP>2</SUP> vs. 1.76 ± 0.66 mm<SUP>2</SUP>, <I>P</I> = 0.013), area stenosis (85.18 ± 13.14 % vs. 54.99 ± 16.13 %, <I>P</I> < 0.001), inflammatory score (2.07 ± 0.861 vs. 28 ± 0.39, <I>P</I> = 0.003), and fibrin scores (1.24 ± 0.70 vs. 0.79 ± 0.72, <I>P</I> = 0.043) were significantly higher in the BVS group. The injury score was higher in the BMS group. In histopathologic findings, restenosis was mainly due to recoil and distortion of the scaffold in the BVS group.</P> <P><B>Conclusions</B></P> <P>Compared with BMS, drug-free BVS was not feasible for small-sized peripheral arteries based on the angiographic, IVUS, and histomorphometric results primarily due to insufficient mechanical support.</P>