Poster Session:PS 1134;Gastroenterology (Liver):Association of Erectile Dysfunction with Depression in Patients with Chronic Viral Hepatitis

( Gun Wung Na ),( Sang Goon Shim ),( Kil Jong Yu ),( Dae Hyeon Cho ),( Chang Uk Jeong ),( Ji Eun Oh ),( Hyun Chin Cho ),( Kwang Min Kim ),( Hyoun Soo Lee ),( Man Je Park ) 대한내과학회 2014 대한내과학회 추계학술발표논문집 Vol.2014 No.1

Background: In men, erectile dysfunction (ED), which is defi ned as the inability to achieve or maintain an erection suffi cient for satisfactory sexual performance, is an important issue. There were extensive investigations in clinical and pathophysiological mechanisms with sexual dysfunction during the last decade. However, ED in patients with chronic viral hepatitis has been investigated in few and limited studies, which are often not comparable because they use different survey and patient-sampling methodologies. Moreover, few have evaluated the association of ED and depression in patients with chronic viral hepatitis. Therefore, we assessed the prevalence of ED, and their association with depression in patients with chronic viral hepatitis. Methods: This cross-sectional study was conducted from August 2013 through January 2014. All outpatients with chronic viral hepatitis between the age of 18 and 80 years were considered eligible. The exclusion criteria included well established causes of erectile dysfunction such as liver cirrhosis and alcohol abuse. Erectile dysfunction was assessed with the International Index of Erectile Function-5 (IIEF-5) scale. The Beck Depression Inventory (BDI) scale was used to assess depression of the patient. Results: The prevalence of erectile dysfunction among the patients with chronic viral hepatitis was 40%. Age, employment, peg-interferon, IIEF-5 scores and BDI scores were statistically associated with erectile dysfunction. And also, IIEF-5 scores correlated negatively with age, employment and BDI scores. In a multiple logistic regression analysis, age and depression were independently associated with erectile dysfunction. Conclusions : Patients with chronic viral hepatitis have a high prevalence of erectile dysfunction. Age and depression are independent factors of erectile dysfunction in male patients with chronic viral hepatitis. Evaluation of depression must be included to properly manage erectile dysfunction.

Color-Based Image Retrieval Using Perceptually Modified Hausdorff Distance

Park, Bo Gun,Lee, Kyoung Mu,Lee, Sang Uk Hindawi Publishing Corporation 2008 EURASIP journal on image and video processing Vol.2008 No.-

<P>In most content-based image retrieval systems, the color information is extensively used for its simplicity and generality. Due to its compactness in characterizing the global information, a uniform quantization of colors, or a histogram, has been the most commonly used color descriptor. However, a cluster-based representation, or a signature, has been proven to be more compact and theoretically sound than a histogram for increasing the discriminatory power and reducing the gap between human perception and computer-aided retrieval system. Despite of these advantages, only few papers have broached dissimilarity measure based on the cluster-based nonuniform quantization of colors. In this paper, we extract the perceptual representation of an original color image, a statistical signature by modifying general color signature, which consists of a set of points with statistical volume. Also we present a novel dissimilarity measure for a statistical signature called Perceptually Modified Hausdorff Distance (PMHD) that is based on the Hausdorff distance. In the result, the proposed retrieval system views an image as a statistical signature, and uses the PMHD as the metric between statistical signatures. The precision versus recall results show that the proposed dissimilarity measure generally outperforms all other dissimilarity measures on an unmodified commercial image database.</P>

뇌출혈이 합병된 감염성 심내막염 1례

박동건,이재욱,권삼,이동철,강승완 동국대학교 경주대학 1997 東國論集 Vol.16 No.2

감염성심내막염에 의한 신경계 합병증은 색전성 뇌경색, 색전성 뇌출혈, 두개내 패혈성 동맥류, 뇌농양, 뇌막염등 다양한데 항생제 요법의 발달과 판막치환술에도 불구하고 그 빈도는 감소되지 않고 있다. 이 중 두개내 패혈성 동맥류의 파열에 의한 뇌출혈은 사망률이 80%로 치명적일 수 있어 조기 발견 및 적절한 치료가 필요하다. 저자들은 두통, 열감, 근육통 등의 증상으로 내원하여 감염성 심내막염으로 진단받고, 항생제 치료로 임상증세의 호전중에 심한 두통과 전신적 발작이 있은 후 갑자기 발생한 두개내 뇌출혈을 심장초음파 및 뇌 컴퓨터 단층촬영을 통하여 진단, 경험하였기에 문헌고찰과 함께 보고하는 바이다. The complications of infective endocarditis may involve any organ system ie, cardia, neurologic, vascular, dermatologic, and kidney. Extracardiac complications are usually caused by either embolization of vegetations or deposition of immune complexes. Neurologic complications remain a significant problem in bacterial endocarditis and have been reported to occur in up to 20% to 40% of cases of infective endocarditis. The various types of central nervous system disease seen in patients with infective endocarditis are cerebral embolism (with infarction or with intracerebral hemorrhage), intracranial mycotic aneurysm, seizures, brain abscess, meningitis, mental change, psychiatric disorder. Mycotic aneurysms are uncommon but not rare and are an important cause of local or systemic sepsis and acute hemorrhage following aneurysmal rupture. Cerebral mycotic aneurysms have been noted in 2∼10% of cases of bacterial endocarditis and account for 2.5∼6.2% of all intracerebral aneurysms. We have experienced a case of neurologic complication due to infective endocarditis in a 23 year-old female patient, who admitted to our hospital because of fever, chill, headache, myalgia. This case was diagnosed by echocardiography, brain computed tomography. The patient died of sudden intracerebral hemorrhage in the 53th hospital day despite intensive medical treatment. We report one case of intracerebral hemorrhage complicated with infective endocarditis.

Mitigation of Greenhouse Gas Emissions (GHGs) by Water Management Methods in Rice Paddy Field

Gun-Yeob Kim,Woo-Kyun Park,Sun-Il Lee,Jong-Sik Lee,Eun-Jung Choi,Un-sung Na,Hee-Young Jang,Sang-Uk Suh 한국토양비료학회 2015 한국토양비료학회지 Vol.48 No.5

Environmental effect of water-saving irrigation on the emissions of greenhouse gases (GHGs) has not been well investigated. The objective of this study was to measure the effect of water-saving irrigation on GHGs as well as water use and rice production yield in paddy field condition in Korea. Four experimental runoff plots of 4x35 m in size were prepared at an existing paddy field. GHGs emission was measured during the 2012∼2013 growing seasons while a Japonica rice variety was cultivated. Four different water management methods, 1) Continuous Flooding (CF), 2) Intermittent Drainage (ID), 3) Water Saving (WS), and 4) CF+WS, were used during a rice growing season to compare the effects of water management methods on GHGs emission. CF method is flooding all the time, ID method makes paddy water drained 40 days after transplanting for about two weeks, WS method maintains 2~3 ㎝ water-level, which should be refilled when the water-level decreased to about 0 ㎝, and CF+WS method combines CF method before 30 days after transplanting (DAT) and WS method after 30 DAT. Regardless of water management methods, paddy field water was drained about 30 days before harvest. Amount of GHGs emission from WS plot was reduced by 69.3% compared to that from CF plot and by 59.0% compared to that from ID plot. Amount of GHGs emission from CF+WS plot was reduced by 60.7% compared to that from CF plot and by 47.5% compared to that from ID plot. Weed occurrence in CF+WS plots was reduced to 62.2% in comparison with the WS plot, implying that CF+WS plot showed the best effect to mitigation of the greenhouse gas emission in the atmosphere.

Growth and Characteristics of Al₂O₃/AlCrNO/Al Solar Selective Absorbers with Gas Mixtures

Park, Soo-Young,Han, Sang-Uk,Kim, Hyun-Hoo,Jang, Gun-Eik,Lee, Yong-Jun The Korean Institute of Electrical and Electronic 2015 Transactions on Electrical and Electronic Material Vol.16 No.5

AlCrNO cermet films were prepared on aluminum substrates using a DC-reactive magnetron sputtering method and a water-cooled Al:Cr target. The Al₂O₃/AlCrNO (LMVF)/AlCrNO (MMVF)/AlCrNO (HMVF)/Al/substrate of the 5 multi-layers was prepared according to the Ar and (N₂ + O₂) gas-mixture rates. The Al₂O₃ of the top layer is the anti-reflection layer of triple AlCrNO (LMVF)/AlCrNO (MMVF)/AlCrNO (HMVF) layers, and an Al metal forms the infrared reflection layer. In this study, the crystallinity and surface properties of the AlCrNO thin films were estimated using X-ray diffraction (XRD) and field-emission scanning electron microscopy (FESEM), while the composition of the thin films was systematically investigated using Auger electron spectroscopy (AES). The optical properties of the wavelength spectrum were recorded using UH4150 spectrophotometry (UV-Vis-NIR) at a range of 0.3 μm to 2.5 μm.

Mitigation of Greenhouse Gas Emissions (GHGs) by Water Management Methods in Rice Paddy Field

Kim, Gun-Yeob,Park, Woo-Kyun,Lee, Sun-Il,Lee, Jong-Sik,Choi, Eun-Jung,Na, Un-sung,Jang, Hee-Young,Suh, Sang-Uk 한국토양비료학회 2015 한국토양비료학회지 Vol.48 No.5

Environmental effect of water-saving irrigation on the emissions of greenhouse gases (GHGs) has not been well investigated. The objective of this study was to measure the effect of water-saving irrigation on GHGs as well as water use and rice production yield in paddy field condition in Korea. Four experimental runoff plots of 4x35 m in size were prepared at an existing paddy field. GHGs emission was measured during the 2012~2013 growing seasons while a Japonica rice variety was cultivated. Four different water management methods, 1) Continuous Flooding (CF), 2) Intermittent Drainage (ID), 3) Water Saving (WS), and 4) CF+WS, were used during a rice growing season to compare the effects of water management methods on GHGs emission. CF method is flooding all the time, ID method makes paddy water drained 40 days after transplanting for about two weeks, WS method maintains 2~3 cm water-level, which should be refilled when the water-level decreased to about 0 cm, and CF+WS method combines CF method before 30 days after transplanting (DAT) and WS method after 30 DAT. Regardless of water management methods, paddy field water was drained about 30 days before harvest. Amount of GHGs emission from WS plot was reduced by 69.3% compared to that from CF plot and by 59.0% compared to that from ID plot. Amount of GHGs emission from CF+WS plot was reduced by 60.7% compared to that from CF plot and by 47.5% compared to that from ID plot. Weed occurrence in CF+WS plots was reduced to 62.2% in comparison with the WS plot, implying that CF+WS plot showed the best effect to mitigation of the greenhouse gas emission in the atmosphere.

한국어 음성 명료도를 이용한 새로운 난청분류 방법

박병욱(Park Byoung-Uk),이건재(Lee Gun-Jae),유동구(Yoo Dong-Gu),김학윤(Kim Hack-Yoon) 한국정보기술학회 2005 Proceedings of KIIT Conference Vol.2005 No.-

난청이란 사람의 정력이 저하되거나 혹은 상실된 상태를 말한다. 난청은 수술이나 치료가 어려워 난청자에게는 보청기를 착용하는 것이 최선의 방법일 수 있다. 보청기 착용 시, 난청자의 청력 손실 값을 토대로 이득을 구하는 fitting이 수행된다. fitting의 가장 큰 목적은 난청자에게 난청이 있는 주파수 대역에 최상의 이득 값을 조절하여 줌으로써 정상인과 같은 청력으로 보상하여 주는 것이다. 또한 난청자의 난청 정도를 분류하는 기존의 방법들은 각 주파수 대역의 청력 손실 값에 일정한 가중치를 주거나 혹은 어음역에 특정한 가중치를 주어 계산하고 있기 때문에 고주파수 대역에서 청력손실이 많은 노인성 난청자(감음신경성 난청)들에게는 부적합하다는 문제점을 갖고 있다. 따라서 본 논문에서는 위에서 언급한 문제점들을 보완하기 위하여 음성 명료도를 토대로 새로운 난청자 분류 방법을 제안한다. Hearing impairment is a state in which one's hearing has declined or been damaged. It is hard to cure hearing impairments with operations or remedies, so wearing a hearing aid may be the best option for people who have difficulties in hearing. When wearing a hearing aid, a fitting process is conducted to calculate the profit, based on the hearing loss value. The existed methods to classify the degree of hearing impairment are calculated by putting weight on the hearing loss value of each frequency range or articulation frequency band. For this reason, it is not adequate for presbycusis (sensorineural hearing loss) people who have the most hearing damage in a high frequency range. Therefore, this paper constructs a total system by gearing a hearing impaired management database and fitting system of the digital hearing aid to supplement the above-mentioned problems and suggest a new method to classify people who have a hearing impairment based on speech clarity.

Monitoring environmental factors in low-salinity culture ponds of the whiteleg shrimp, Litopenaeus vannamei.

Seong Uk Park,Jong Kuk Kim,Gwan Hee Han,Hyung Seop Kim,Soo-Gun Jo 한국수산해양기술학회(구 한국어업기술학회) 2018 한국수산해양기술학회 학술발표대회 Vol.2018 No.11

A Perceptually Modified Hausdorff Distance for a Random Signature

Bo-Gun Park(박보건),Hoyub Jung(정호엽),Kyoung-Mu Lee(이경무),Sang-Uk Lee(이상욱) 한국통신학회 2005 한국통신학회 학술대회논문집 Vol.2005 No.6

CCl₄ 유도 肝 독성에 대한 冬蟲夏草의 항산화 효과

민건우(Gun-Woo Min),박종혁(Jong-Hyuck Park),신상국(Sang-Guk Shin),윤철호(Cheol-Ho Yoon),서운교(Woon-Gyo Seo),정지천(Ji-Cheon Jeong),한영환(Yeong-Hwan Han),신억섭(Uk-Seob Shin) 대한한의학회 2001 대한한의학회지 Vol.22 No.3