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전대원 ( Dae Won Jun ),이오영 ( Oh Young Lee ),조경란 ( Gyeong Lan Jo ),백상현 ( Sang Hyeon Baeg ),양선영 ( Sun Young Yang ),한성희 ( Sung Hee Han ),이항락 ( Hang Lak Lee ),전용철 ( Young Cheol Jeon ),한동수 ( Dong Soo Han ),손주 대한소화기기능성질환·운동학회 2005 Journal of Neurogastroenterology and Motility (JNM Vol.11 No.1
목적: 과민성 장증후군은 약 6~10%의 유병율을 가지는 매우 흔한 소화기 질환이며, 정신사회학적 증상과 밀접한 관계를 가지는 것으로 알려져 있다. 그러나 과민성 장증후군 증상을 가지고 있는 사람 중 소수만이 의료기관을 방문하는 것으로 알려져 있다. 본 연구에서는 과민성 장증후군의 증상을 가지고 있는 사람 중 의료기관을 이용하여 치료를 받고 있는 군과 치료를 받지 않는 비치료군 간의 심리적 상태 및 장외증상의 차이에 대하여 알아보고자 하였다. 대상 및 Background/Aims: Only a relatively small portion of those people suffering with IBS, estimated at 25~50%, eventually seeks medical care. Yet little is known about the difference in the characteristics between the consulter and non-consulter IBS patients.
진공압에 의해 탈수 처리된 정수장 슬러지의 이용에 관한 연구 ( 2 ) ; 건설재료로서 재활용 가능성에 관하여
정연인(Youn In Chung),전대원(Dae Won Jeon) 한국수처리학회 2001 한국수처리학회지 Vol.9 No.1
Water treatment plant sludge occurred in sedimentation and inverse wash process. Sludges are generally managed by disposal to the ocean and reclamation after dehydration using mechanical or natural dry method. However, disposal to the ocean will be prohibited by international law, and reclamation to sanitary facilities is going to be more difficult due to environmental issue. Physical, chemical, and geo-technical characteristics of water treatment plant sludge were analyzed by experiments. Dehydration sludges were examined the possibilities of recycling as a construction material. Performed experiments are as follows ; sieve and hydrometer analysis, liquid and plastic limit test, specific gravity test, compaction test, and unconfined compression test to sludges mixed with coal ash and fiber. As the results of this study, mixtures(sludge mixed with fiber) have larger OMC(optimum moisture content) and smaller γ_(dmax)(maximum dry unit weight) than sludge only. When having the same mixture ratio with coal ash, as compared fibrillated bundle mixtures with mono filament mixtures, mono filament mixtures have smaller OMC and larger γ_(dmax)·Unconfined compression strength are increasing as increasing coal ash mixture ratio and longer curing time.
트위터 프로필 사진 유형과 메시지 유형이 트위터 계정소유자 (TAO)의 인상형성에 미치는 영향
김아름(Ah-reum Kim),박민아(Mi-na Park),전대원(Dae-won Jeon),강미리(Mi-ri Kang),공혜진(Hye-jin Kong),구유리(Yoo-ri Gu),진민수(Min-soo Jin),김주환(Joo-han Kim) 한국HCI학회 2011 한국HCI학회 논문지 Vol.6 No.2
최근 소셜미디어를 통한 커뮤니케이션이 늘어나면서 소셜미디어에서의 인상형성에 대한 관심도 급증하고 있다. 본 연구에서는 트위터 프로필 사진의 유형과 타임라인 메시지 유형이 트위터 계정소유자(TAO)의 인상을 어떻게 형성하는가를 알아보고자 했다. 즉, 온라인상에서 TAO의 메인화면을 구성할 때 격식적 사진과 비격식적 사진, 정보적 메시지와 일상적 메시지 등 각각의 유형에 따라 피험자가 느끼는 인상이 어떤 차이를 보이는지를 분석했다. 더 나아가 온ㆍ오프라인으로 각각 관계를 발전시킬 의향 역시 측정하였다. 그 결과, 메시지 유형이 정보적 메시지일 경우, 일상적인 메시지일 경우보다 TAO의 신뢰도 향상에 긍정적인 영향을 미쳤고, 온라인 안에서의 관계 형성 의지를 높이는 것으로 나타났다. 또한 프로필 사진이 비격식적인 사진일 때가 격식적인 사진일 때보다 TAO의 호감도를 높여주었다. 정보적 메시지와 격식적 사진이 함께 제시 되었을 때 신뢰도가 가장 높았다. 일상적 메시지와 비격식적 사진이 함께 제시되었을 때 신뢰도는 가장 낮은 반면 호감도는 가장 높았다. 결과적으로 소셜미디어에서의 인상형성을 TAO가 원하는 양상으로 구성할 수 있을 것이라는 의미를 도출해낼 수 있었다. Increasing communication through social media forming impression becomes more important. In this research, how three stimulus can build the impression of Twitter Account Owner(TAO) such as the types of the profile pictures, the types of timeline messages and the number of followers. We analysed the feelings of respondents when they face TAO’s formal picture and informal picture, informative message and normal message, the number of followers. We, in addition, measured the willingness of respondents whether they want to develop their relationship online and offline as well. As a result, informative message draws positive reliability and makes respondent want to build deeper relationship with TAO at online. Respondent answered TAO’s informal picture was more likable than formal picture and more reliable when informative message and formal picture were provided together. Our study shows that there are actual differences at attitudes of respondents by the types of the profile pictures and the types of timeline messages. Thus, we can conclude that TAOs can modify their impressions at online as they hope to.
한성희 ( Sung Hee Han ),이오영 ( Oh Young Lee ),양선영 ( Sun Young Yang ),전대원 ( Dae Won Jun ),이항락 ( Hang Lak Lee ),전용철 ( Yong Cheol Jeon ),한동수 ( Dong Soo Han ),손주현 ( Joo Hyun Sohn ),윤병철 ( Byung Chul Yoon ),최호순 대한소화기학회 2006 대한소화기학회지 Vol.48 No.1
In Crohn`s disease, neurologic complications such as cerebrovascular accident, headache, peripheral neuropathy have been reported sporadically. The pathogenesis of these neurologic complications is still unknown and controversial. We experienced a 22-year-old man, with Crohn`s disease accompanied by optic neuritis. Loss of visual acuity was developed during the worsening course of enterocutaneous fistula. After high dose steroid treatment, his visual acuity and neurologic symptoms improved immediately. (Korean J Gastroenterol 2006;48:42-45)
만성 간 질환에서 Thallium-201 간 스캔의 단락지수(Shunt Index)와 간 조직 검사 소견에 대한 연구
유영조(Young Jo Yoo),정진웅(Jin Woong Jung),최춘식(Choon Sik Choi),전대원(Dae Won Jeon),이오영(Oh Young Lee),최호순(Ho Soon Choi),윤병철(Byung Chul Yoon),함준수(Joon Soo Hahm),이민호(Min Ho Lee),최윤영(Yun Young Choi),홍은경(Eun Kyun 대한내과학회 2000 대한내과학회지 Vol.58 No.2
Background : The disturbances of portal circulation in chronic liver disease may cause hepatic failure, hepatic encephalopathy and variceal bleeding. The measure of porto-systemic shunt plays a significant role in the management and prognosis of the patients. So we have evaluated the relationship between the shunt index of thallium-201 liver scan and the histological grade and stage of chronic liver disease. Methods : The thallium-201 scintigraphy per rectum was evaluated in 159 patients with chronic liver disease, which were proven with percutaneous liver biopsy. We used the heart to liver activity ratio at 20 minute as shunt index, representing portal-systemic shunt. The two pathologists scored independently hepatitis activity (lobular and porto-periportal activity) and stage (fibrosis). Results : A significant difference was noted between the shunt index and the scores of fibrosis (p<0.001) although this correlation was statistically weak (r=0.26, p=0.008). In cumulative logistic regression test, the shunt index had a effect on the fibrosis (p<0.001) but not on the lobular and porto-periportal activity. Fibrosis was predicted as less than 2 if shunt index was less than 0.24, 3 if more than 0.24 but less than 0.46, 4 if more than 0.46. Conclusion : The shunt index of thallium-201 liver scintigraphy correlated only with fibrosis not with lobular and porto-periportal activity. As the fibrosis progresses in chronic liver disease, portal hypertension becomes more severe and the shunt index increases. Thallium-201 liver scan may be useful for evaluation of hepatic fibrosis instead of invasive liver biopsy in predicting the histological stage (fibrosis) of advanced chronic liver disease.(Korean J Med 58:152-160, 2000)
권오성 ( Oh Sung Kwon ),박영숙 ( Young Sook Park ),최정호 ( Jung Ho Choi ),김성환 ( Seong Hwan Kim ),송문희 ( Moon Hee Song ),이한효 ( Han Hyo Lee ),전대원 ( Dae Won Jeon ),김남인 ( Nam In Kim ) 대한소화기학회 2007 대한소화기학회지 Vol.49 No.5
Although a large number of studies have reported the causes of the exacerbation of ulcerative colitis (UC), the effect of influenza vaccination on the relapse of UC has not been reported. We experienced a case of prompt exacerbation of quiescent UC due to influenza vaccination. A 39-year-old woman was diagnosed as UC 4-years ago and was well controlled with oral mesalazine. She experienced abdominal pain and frequent bowel movements with hematochezia 3 days after the vaccination. On admission, laboratory findings showed elevated erythrocyte sedimentation rate and C-reactive protein. Sigmoidoscopy showed marked edematous mucosa on rectum and sigmoid colon with fine ulceration and spontaneous bleeding. She recovered from the exacerbation of UC after steroid treatment. Vaccination should be administered to the patients with inflammatory bowel disease with the caution of its possible side effects. (Korean J Gastroenterol 2007;49:327-330)
만성 간질환의 진행 정도 평가를 위한 비침습적 검사들의 상관관계와 임상적 의의
이재원,정진웅,이민호,박근태,김진배,전대원,함준수,유영조,박경남,윤병철,최호순,최춘식 대한소화기학회 1999 대한소화기학회지 Vol.33 No.6
Background/Aims: We aimed to figure out a correlation of non-invasive tests for the diagnosis o chronic active hepatitis (CAH) or liver cirrhosis (LC). Methods: We measured the levels of serum albumin, bilirubin, alanine aminotransferase (ALT), asparate aminotransferase (AST), cholesterol prothrombin time, ICG-Rmax and shunt index (heart/liver ratio) in 174 patients with CAH and 80 patients with LC (Child A, 73 patients; Child B, 7 patients). A correlation of these values to evaluat the progression to liver cirrhosis was figured out from the multiple regression analysis. Results: There were significant differences between CAH patients and LC patients in the ratio of ALT to AST (ALT/AST, 1.45 ±0.05 vs 0.99 ±0.05), prothrombin time (93.9 ±1.2% vs 77.1 ±2.4%), ICG-Rmax (2.11 ±0.15 vs 1.07 ±0.12) and shunt index (0.21 ±0.00 vs 0.60 ±0.03). The multiple regression analysis of non-invasive tests yielded a formula, Y=3.3431 -0.8160 ×ALT/AST -0.0343 ×prothrom-bin time +2.6963 ×shunt index & p=ey/(ey+1)timate the progression of chronic liver disease. The p value was less than 0.7 in 126 (96.2%) of 131 CAH patients, while 47 (68.1%) o69 LC patients showed p value over 0.7. Conclusions: When the p value mentioned above exceed 0.7, CAH is likely to develop into an early LC. These results suggest that the formula inferred from the multiple regression analysis of non-invasive tests may be used to evaluate the progression of chronic liver disease without the repeat of liver biopsy.