디지털 및 일반 측방두부규격방사선사진에서 측정 방법에 따른 계측치의 비교

김미자,허경회,이원진,허민석,이삼선,이진구,안병근,최순철 대한구강악안면방사선학회 2005 Imaging Science in Dentistry Vol.35 No.1

Purpose : To compare cephalometric measurement between measuring methods in digital and conventional lateral cephalometric radiograph. Materials and Methods : Twenty digital and conventional lateral cephalometric radiographs were selected. In digital group, cephalometric measurements were performed manually using hardcopies and automatically using VCeph^(TM) program on the monitor. In conventional group, the same measurements were performed manually on conventional films, and for automatic measurement conventional films were digitized by scanner. All measurements were performed twice by 4 observers, and 24 cephalometric variables were calculated and the time spent for each measurement was recorded. The differences in measurements data and the time spent for each measurement were compared within each group. Intra-observer and inter-observer comparisons were performed. Results : In both groups, no statistically significant difference between manual and automatic measurements was observed and most of the variables didn’t show statistically significant differences between methods. The observer with less experience tended to show statistically significant differences of measurements between methods, and differences from other observers. The differences of measurements between methods in digital group were lesser than those of conventional group with statistical significance in 8 variables out of 24. With automatic method and in digital group, the spent time was shorter. Conclusion : With direct digital radiograph, automatic method using manually idenitified landmarks can be preferable in cephalometric analysis.

MoSi_2기 복합재료의 소결온도에 따른 미끄럼마모 특성

이광영,박원조,허선철,김형진,박성호 경상대학교 해양산업연구소 2002 해양산업연구소보 Vol.15 No.-

Molybdenum disilicide(MoSi_2) is considered to be a promising high temperature material for turbojet anhypersonic engines in aerospace and various industrial applications, because of a high melting point(2030℃),adequate density(6.3g/cm^3) and an excellent oxidation resistance. Mosi2 powder was evaluated from the variation of fabricating such as preparation temperature 1250℃, 1350℃ and 1500℃ respectively. Abrasion tester used a pin-on-disk type and a Si3N4 ceramic ball which used as machine structural materials. The test condition apply to load of 8kgf at 7.5rpm for 6 hours and the effect of hardness is also discussed. As a result of the tests, the friction coefficient was decreased with sintered MoSi_2 of increasing temperature but the function coefficient did not vary much for all specimens at all temperatures.

Smoking Is Associated With Abdominal Obesity, Not Overall Obesity, in Men With Type 2 Diabetes

Yun, Ji-Eun,Kimm, Hee-Jin,Choi, Young-Ju,Jee, Sun-Ha,Huh, Kap-Bum The Korean Society for Preventive Medicine 2012 Journal of Preventive Medicine and Public Health Vol.45 No.5

Objectives: Abdominal obesity increases mortality and morbidity from cardiovascular disease and there is a possibility that smoking effects obesity. However, previous studies concerning the effects of smoking on obesity are inconsistent. The objective of this study was to examine whether smoking is positively related to abdominal obesity in men with type 2 diabetes. Methods: Subjects consisted of 2197 type 2 diabetic patients who visited Huh's Diabetes Center from 2003 to 2009. Indices of abdominal obesity were defined as visceral fat thickness (VFT) measured by ultrasonography and waist circumference (WC). Overall obesity was defined as body mass index (BMI). Results: Statistically significant differences in WC and VFT by smoking status were identified. However, there was no statistical difference in BMI according to smoking status. Means of WC and VFT were not significantly higher in heavy smokers and lower in mild smokers. Compared to nonsmokers, the BMI confounder adjusted odds ratio and 95% confidence interval for VFT in ex-smokers and current-smokers were 1.70 (1.21 to 2.39) and 1.86 (1.27 to 2.73), respectively. Conclusions: Smoking status was positively associated with abdominal obesity in type 2 diabetic patients.

Bone marrow cells repair cigarette smoke-induced emphysema in rats

Huh, Jin Won,Kim, Sun-Yong,Lee, Ji Hyun,Lee, Jin-Seok,Van Ta, Quang,Kim, MiJung,Oh, Yeon-Mok,Lee, Yun-Song,Lee, Sang-Do American Physiological Society 2011 American Journal of Physiology: Lung cellular and Vol.301 No.3

Non-tuberculous Mycobacterial Pulmonary Disease in Patients with Idiopathic Pulmonary Fibrosis

( Jin-young Huh ),( Kyung-wook Jo ),( Tae Sun Shim ),( Jin Woo Song ) 대한결핵 및 호흡기학회 2021 대한결핵 및 호흡기학회 추계학술대회 초록집 Vol.129 No.-

Background It is known that the comorbidities may influence the clinical course of idiopathic pulmonary fibrosis (IPF). However, impact of combined nontuberculous mycobacterial pulmonary disease (NTM-PD) on clinical outcomes in IPF patients is not well defined. We aimed to investigate the impact of NTM-PD on prognosis of IPF, and vice versa. Methods Clinical data of 1360 IPF patients (biopsy proven: 32.2%) were retrospectively analyzed. The impact of NTM-PD on clinical outcomes of patients with IPF was evaluated by the Cox regression analysis, and risk factors for NTM-PD were assessed by logistic regression analysis. Results Of total patients, the mean age was 66.4 years, and 81.3% were male. NTM-PD occurred in 73 (5.4%). The NTM-PD group had lower body mass index (BMI) (22.8 vs. 24.4; p < 0.001) than the no-NTM-PD group. The no-NTM-PD group were followed for median of 25.4 ± 24.5 months and NTM-PD group were followed for 30.9 ± 27.0 months (p = 0.066). While all-cause hospitalization (39.1% [no-NTM-PD] vs. 58.9% [NTM-PD], p = 0.001), respiratory hospitalization (26.2% [no-NTM-PD] vs. 43.8% [NTM-PD], p = 0.016) and mortality (58.9% [no-NTM-PD] vs. 79.5% [NTM-PD], p = 0.001) were more frequent in the NTMPD group, acute exacerbation (16.3% [no-NTM-PD] vs. 27.1% [NTM-PD], p = 0.082) was not (Figure 1). In the Cox regression analysis, NTM-PD was independent risk factor for all-cause hospitalization (HR: 1.412; 95% CI: 1.015-1.965; p = 0.040), and respiratory hospitalizations (hazard ratio [HR]: 1.460; 95% confidence interval [CI]: 1.029-2.071; p = 0.034) but not in terms acute exacerbation, and mortality. Lower BMI was independently associated with NTM-PD (odds ratio:1.178; 95% CI: 1.077-1.291; p < 0.001) in patients with IPF. Conclusions Our data suggest NTM-PD increases the risk of hospitalization, and lower BMI means higher risk of NTM-PD in patients with IPF.

Endoscopy and Imaging Modalities/Basic Science of Gastrointestinal Disorders/Miscellaneous : Eus-Guided Transgastric Drainage Of Pancreatic Pseudocyst Complicated By Distal Pancreatectomy

( Jin Gook Huh ),( Jung Hwan Lee ),( Won Cheol Jang ),( Kyung Sun Ok ),( Tea Yeob Jeong ),( Soo Hyung Ryu ),( You Sun Kim ),( Jeong Seop Moon ) 대한소화기학회 2007 SIDDS Vol.9 No.-

Background/Aims: Pancreatic pseudocysts are caused by complications of patients with pancreatitis or pancreatic trauma including recent surgery. Asymptomatic pseudocysts require no treatment, but symptomatic pseudocysts should be decompressed. The management options include endoscopic, radiologic, surgical, and conservative treatment. Among these treatment, EUS-guided internal drainage is widely reported in multiple series, representing the experience of tertiary centers with special expertise. However, EUS-guided endoscopic drainage of post-operative pancreatic pseudocyst has not been reported as yet. We present a case of successful EUS-guided transgastric drainage of pancreatic pseudocyst complicated by distal pancreatectomy. Case: A 52-year-old man complained intermittent epigastric pain associated with dyspepsia during last 3 weeks. He had undergone distal pancreatectomy under the diagnosis of a pancreatic mucinous cystadenoma 4 months ago. The abdominal CT and MRI showed a 4.5×5.3 cm sized pseudocyst as the distal pancreatectomy sis and unclear communication with pancreatic duct. Transgastric drainage was performed by using linear array EUS. The cystotome dilator (Wilson Cook, Winston-Salem, NC, USA) was used to electrosurgically cannulate the gastric wall into a pancreatic pseudocyst and 10F double-pigtail plastic stent was placed through the cannulated channel. The drained fluid was dark brown color. Follow-up CT scan showed completely collapsed pseudocyst and the pigtail catheter was removed. At 6 months follow-up, there was no radiologic evidence of cystic recurrence and subjective symptom. Conclusions: With the advancement of EUS, endoscopic drainage of pancreatic pancreatic pseudocyst is an alternative to surgery because of its safety and efficacy. As our case, in the patient with post-operative pancreatic pseudocyst, EUS-guided internal drainage is very effective as a fist line therapy.

Hepatoprotective Effects of Allium cepa Linn Extract on Acetaminophen-induced Liver Damage in Mice

Kyung-Jin Lee,Deok-Song Kim,Eun-Sun Seo,Gun-Chang Ryu,Jin Huh,Jong-Sun Kim,Myung-Suk Ra,Seong-Uk Wui,Back-Jin Jeong,Dong-Woo Nam,Jong-Eun Chin,Jong Bin Lee 한국식품과학회 2003 Food Science and Biotechnology Vol.12 No.6

공연 번들티켓 판촉전략과 희소성메시지가 구매의도에 미치는 영향

허유진(Huh, You Jin),황선진(Hwang, Sun Jin) 한국전시산업융합연구원 2014 한국과학예술융합학회 Vol.18 No.-

본 연구는 번들티켓 판촉전략과 희소성메시지 그리고 관여도가 공연티켓 구매의도에 어떠한 영향을 미치는지 알아보고자 하였다. 이를 위해 번들티켓 판촉전략 유형(가격-할인 vs 가치-부가), 희소성메시지(수량한정 vs 시간한정) 그리고 소비자의 관여도(고 vs 저)의 삼원혼합요인설계로 구성하였으며, 서울과 대전 지역의 20~30대 150명을 대상으로 편의표집하여 총 132명의 자료를 최종분석에 활용하였다. 자료분석은 SPSS 19.0을 이용하여 ANOVA, 단순 상호작용, 단순 주효과 분석을 실시하였다. 본 연구결과는 다음과 같다. 먼저, 번들티켓 판촉유형인 가격할인 번들티켓과 가치부가 번들티켓에 따라 구매의도에 있어 각각 유의한 차이가 있는 것으로 나타났다. 둘째, 희소성메시지와 번들티켓 판촉유형이 구매의도에 미치는 영향에 있어 유의한 상호작용 효과가 있는 것으로 나타났다. 셋째, 희소성메시지와 관여도, 그리고 번들티켓 판촉유형과 관여도에 따른 구매의도에는 유의한 차이가 없는 것으로 나타났다. 넷째, 희소성메시지, 번들티켓 판촉전략 유형 그리고 소비자의 관여도가 구매의도에 미치는 영향에 있어서 유의한 차이가 있는 것으로 나타났다. 본 연구를 통해 공연 티켓 판매에 있어 보다 효과적인 판매촉진을 할 수 있는 다차원적이며 효율적인 마케팅 전략 방안을 제시하며, 공연 티켓 번들링에 관한 실증적인 분석을 통해 기존의 제한적인 연구의 폭을 확대하는데 기여하고자 한다. This study investigated the influences of the types of bundle tickets promotion strategy, scarcity messages and consumers involvement on purchase intentions. 2(Bundle ticket promotion types: price-discount vs value-added) * 2(Scarcity message: quantitative vs temporal) * 2(Involvement: high vs low) three-way mixed factorial design was composed to verify the effects of study. 150 people in their 20s and 30s residing in Seoul and Daejeon have responded to the survey and total of 132 responses were analysed. Data analysis was done with SPSS 19.0 program and three-way ANOVA, simple interaction effects and simple main effects analysis were conducted. The results of this study are as follows. First, there was significant difference between price-discount promotion and value-added promotion in terms of purchase intentions. Second, there was significant interaction effect between scarcity message and types of bundle ticket in terms of affecting purchase intentions. Third, the differences of purchase intentions based on both scarcity message and involvement, and types of bundle ticket and involvement were not significant. Lastly, the effects of scarcity message, bundle ticket promotion, and involvement on purchase intentions were significantly different. This study presents more enhancing sales promotion which is efficient and multi-dimensional marketing strategy plans that can sells tickets for performances more effectively, and expands from limited research areas through empirical analyzing about tickets for performances.

Prospects and Direction of Brassica Genome Sequencing: Lessons from Comparison with Arabidopsis Genome Sequence

Tae Jin Yang,Ho Il Kim,Yong Pyo Lim,Ki Byung Lim,Soo Jin Kwon,Jin A Kim,Jee Young Park,Jung Sun Kim,Myung Ho Lim,Yong Moon Jin,Jang Ho Han,Yoon Kang Huh,Beom Seok ParkMi 한국육종학회 2004 한국육종학회 학술발표회 발표요지 Vol.36 No.1

Clinical and molecular characterization of Korean children with infantile and late-onset Pompe disease: 10 years of experience with enzyme replacement therapy at a single center

Min-Sun Kim,Ari Song,Minji Im,June Huh,I-Seok Kang,Jin Young Song,Aram Yang,Jinsup Kim,Eun-Kyung Kwon,Eu-Jin Cho,Sun-Ju Han,Hyung Doo Park,조성윤,진동규 대한소아청소년과학회 2019 Clinical and Experimental Pediatrics (CEP) Vol.62 No.6

Purpose: Pompe disease (PD) is an autosomal recessive disorder caused by a deficiency of acid alphaglucosidase resulting from pathogenic GAA variants. This study describes the clinical features, genotypes, changes before and after enzyme replacement therapy (ERT), and long-term outcomes in patients with infantile-onset PD (IOPD) and late-onset PD (LOPD) at a tertiary medical center. Methods: The medical records of 5 Korean patients (2 male, 3 female patients) diagnosed with PD between 2002 and 2013 at Samsung Medical Center in Seoul, Republic of Korea were retrospectively reviewed for data, including clinical and genetic characteristics at diagnosis and clinical course after ERT. Results: Common initial symptoms included hypotonia, cyanosis, and tachycardia in patients with IOPD and limb girdle weakness in patients with LOPD. Electrocardiography at diagnosis revealed hypertrophic cardiomyopathy in all patients with IOPD who showed a stable disease course during a median follow-up period of 10 years. Patients with LOPD showed improved hepatomegaly and liver transaminase level after ERT. Conclusion: As ERT is effective for treatment of PD, early identification of this disease is very important. Thus, patients with IOPD should be considered candidates for clinical trials of new drugs in the future.