Pentadecafluorroctyl Polyacrylate에 依한 Nylon 6 纖維의 撥水加工에 關한 硏究

李廷玟,任洪彬,劉承坤,裵基瑞 충남대학교 공업교육연구소 1978 論文集 Vol.1 No.2

This study has been investigated on the effects of fluorochemical repellent agent on the water repellent finishes of nylon 6 fibre with pentadecafluorooctyl polyacrylate. Contact angles of various liquids on the fluorochemical treated nylon 6 surface are measured. The critical surface tension of about 46 dynes per cm on the nylon 6 surface is resulted. The effect of fluorochemical repellent was most favourable at 1% concentration repellent agent and the critical surface tension is resulted the value of about 10.5 dynes per cm. The use of antistatic agent in the fluorochemical repellent was most favourable below 0.5% concentration. It was found that the repellent effects were improved by repeated treatments with the solution of lower concentration of repellent.

고혈압·당뇨병 신규 환자 발견 이후 지역사회 협력을 통한 등록관리가 치료순응도 및 혈압 및 혈당 조절에 미치는 영향

홍두호(Duho Hong),서화정(Hwa-jeong Seo),강경희(Kyoung-hee Kang),김은주(Eun-ju Kim),임정수(Jeong-Soo Im),오대규(Dae-kyu Oh),임준(Jun Yim) 한국농촌의학 지역보건학회 2008 농촌의학·지역보건 Vol.33 No.3

인천광역시의 2개 지방자치단체에서 고혈압과 당뇨병의 관리를 위해 민간의료기관과 함께 만든 만성질환등록관리체계의 효과를 평가하였다. 만성질환등록관리체계에 등록관리가 이루어지고 있는 군이 미등록군에 비해 치료순응도와 혈압 및 혈당의 조절 정도가 좋은지를 평가하였다. 자료분석은 로짓회귀모형을 구축하여 이루어졌고, 다단계 변수 선택법을 사용하여 교차비와 95% 신뢰구간을 구하였다. 연구결과 등록관리군이 미등록군에 비해 치료순응도가 5.5배 높았고, 혈압 및 혈당의 조절이 3.78배 더 잘 되었다. 향후 이러한 효과가 인천광역시 전체 사업으로 확대된 후에도 지속되는지를 평가할 필요가 있다. Objectives : Incheon metropolitan city has set a model program of community partnership for hypertensive or diabetic patients detection and follow-up since 2005. This study examines the effects of the model on the compliance and the control of blood pressure or blood sugar level Methods : Telephone-surveys were done for 140 persons selected from 408 patients who were detected newly as hypertensive or diabetic patients at Gangwha-Gun and Seo-Gu in Incheon between January 1st and August 31th in 2006, and finally completed in 110 patients(78.6%). Survey questionnaires included socio-demographic(age, gender, and educational level), health behavioral (smoking, drinking, physical activity, and diet), and therapy-related (registration state, compliance, blood pressure or blood sugar control) variables. Odds ratio and 95% CI were derived from logistic regression model. Results : Registered group exhibited high compliance and well managed blood pressure or blood sugar level. The odds ratio of registration were 5.55(95% CI:1.83~16.89) for compliance and 3.78(95% CI:1.43~9.99) for blood pressure or blood sugar control after adjusting for age, gender, disease, and area Conclusions : It is independently related to compliance and blood pressure or blood sugar control whether the patient is registered or not. To control hypertension or diabetes mellitus in terms of compliance and control state, a community-based registration program through community partnership could be a powerful tool.

CCD Photometry of the Globular Cluster M30

Yim, Hong-Seo,Chun, Mun-Suk 한국우주과학회 1993 한국우주과학회보 Vol.2 No.1

Rapid, Sensitive, and Specific Detection of Salmonella Enteritidis in Contaminated Dairy Foods using Quantum Dot Biolabeling Coupled with Immunomagnetic Separation

( Hong Seok Kim ),( Jung Whan Chon ),( Hyunsook Kim ),( Dong Hyeon Kim ),( Jin Hyuk Yim ),( Kwang Young Song ),( Il Byung Kang ),( Young Ji Kim ),( Soo Kyung Lee ),( Kun Ho Seo ) 한국유가공기술과학회 2015 Journal of Dairy Science and Biotechnology (JMSB) Vol.33 No.4

Colloidal semiconductor CdSe-ZnS core-shell nanocrystal quantum dot (Qdot) are luminescent inorganic fluorophores that show potential to overcome some of the functional limitations encountered with organic dyes in fluorescence labeling applications. Salmonella Enteritidis has emerged as a major cause of human salmonellosis worldwide since the 1980s. A rapid, specific, and sensitive method for the detection of Salmonella Enteritidis was developed using Qdot as a fluorescence marker coupled with immunomagnetic separation. Magnetic beads coated with anti-Salmonella Enteritidis antibodies were employed to selectively capture the target bacteria, and biotin-conjugated anti-Salmonella antibodies were added to form sandwich immune complexes. After magnetic separation, the immune complexes were labeled with Qdot via biotin-streptavidin conjugation, and fluorescence measurement was carried out using a fluorescence measurement system. The detection limit of the Qdot method was a Salmonella Enteritidis concentration of 10(3) colony-forming units (CFU)/mL, whereas the conventional fluorescein isothiocyanate-based method required over 10(5) CFU/mL. The total detection time was within 2 h. In addition to the potential for general nanotechnology development, these results suggest a new rapid detection method of various pathogenic bacteria from a complex food matrix.

A Patient with Henoch-Schönlein Purpura with Intussusception and intractable Nephritis

Seo, Min Kyoung,Hong, Jeong,Yim, Hyun Ee,Pai, Ki Soo Korean Society of Pediatric Nephrology 2016 Childhood kidney diseases Vol.20 No.2

Henoch-$Sch{\ddot{o}}nlein$ purpura (HSP) is the most common vasculitis in children, mainly affecting the small vessels of the skin, joints, gastrointestinal tract, and kidneys. Although most cases of HSP resolve spontaneously without sequelae, serious nephrological and intestinal problems may occur in some cases. We experienced a case of HSP complicated by simultaneous intussusception and nephritis in a 14-year-old boy who developed a sudden abdominal pain and gross hematuria on the 11th day after onset of the disease. Imaging studies revealed intussusception that required emergency laparotomy. Despite treatment with steroid and angiotensin-converting enzyme inhibitors, nephritis and nephrosis progressed for 4 weeks, and renal biopsy was performed to confirm the diagnosis. Cyclosporin A therapy was started, and remission of proteinuria was achieved after 5 months. However, the nephritis recurred and worsened to end-stage renal failure during 15 years of follow-up.

A Study on the Deriving Requirements of ARGO Operation System

Seo, Yoon-Kyung,Rew, Dong-Young,Lim, Hyung-Chul,Park, In-Kwan,Yim, Hong-Suh,Jo, Jung-Hyun,Park, Jong-Uk 한국우주과학회 2009 Journal of Astronomy and Space Sciences Vol.26 No.4

Korea Astronomy and Space Science Institute (KASI) has been developing one mobile and one stationary SLR system since 2008 named as ARGO-M and ARGO-F, respectively. KASI finished the step of deriving the system requirements of ARGO. The requirements include definitions and scopes of various software and hardware components which are necessary for developing the ARGO-M operation system. And the requirements define function, performance, and interface requirements. The operation system consisting of ARGO-M site, ARGO-F site, and Remote Operation Center (ROC) inside KASI is designed for remote access and the automatic tracking and control system which are the main operation concept of ARGO system. To accomplish remote operation, we are considering remote access to ARGO-F and ARGO-M from ROC. The mobile-phone service allows us to access the ARGO-F remotely and to control the system in an emergency. To implement fully automatic tracking and control function in ARGO-F, we have investigated and described the requirements about the automatic aircraft detection system and the various meteorological sensors. This paper addresses the requirements of ARGO Operation System.

Role of Hepatitis B Surface Antigen (HBsAg) in Identifying True Inactive HBsAg Carriers Infected With Genotype C Hepatitis B Virus

Yim, Sun Young,Um, Soon Ho,Jung, Jin Young,Seo, Yeon Seok,Yim, Hyung Joon,Ryu, Ho Sang,Chun, Hoon Jai,Jeen, Yoon Tae,Kim, Chang Duck,Keum, Bora,Lee, Hong Sik RAVEN PRESS PUBLISHERS 2014 JOURNAL OF CLINICAL GASTROENTEROLOGY Vol.48 No.2

BACKGROUND:: Inactive and active phases of hepatitis B e antigen-negative chronic hepatitis B virus (HBV) infection are diagnosed by serum HBV DNA levels, with cutoff at 2000 IU/mL. However, it is difficult to distinguish inactive carriers at a single time point because HBV DNA levels can transiently decrease to <2000 IU/mL even in noninactive carriers. GOALS:: We aimed to establish the role of serum hepatitis B surface antigen (HBsAg) in identifying “true inactive carriers” among treatment-naive genotype C HBV-infected patients with low viremia. STUDY:: A total of 133 hepatitis B e antigen-negative carriers with serum HBV DNA levels of <2000 IU/mL and normal alanine aminotransferase levels were enrolled and followed up for >12 months. RESULTS:: Forty patients (30.1%) were classified as noninactive carriers (HBV DNA ≥2000 IU/mL and/or alanine aminotransferase >40 IU/L) during 12 months from enrollment. No baseline serum HBV DNA levels could identify true inactive carriers with 100% specificity, whereas baseline serum HBsAg levels (50 IU/mL) identified true inactive carriers with 100% specificity and 29% detection rate. Detection rate increased when different cutoff levels were applied to different age groups according to median age (46 y). It was comparable in both younger and older groups (37.2% vs. 38%) even when HBsAg cutoff level was increased in the former (400 vs. 50 IU/mL). Furthermore, none reversed to noninactive phase during long-term follow-up when these cutoff levels were applied. CONCLUSIONS:: Baseline serum HBsAg levels at a single time point can identify persistently true inactive carriers, with different cutoff levels according to age.

Multi-aperture Photometry Pipeline for DEEP-South Data

Seo-Won Chang,Yong-Ik Byun,Myung-Jin Kim,Hong-Kyu Moon,Hong-Suh Yim,Min-Su Shin,Young-Woon Kang 한국천문학회 2016 天文學會報 Vol.41 No.1

Nimodipine, 유도성 고혈압 및 양 방법의 혼합 치료가 실험적 뇌경색에 미치는 영향

서영호,김인홍,이장철,손은익,김동원,임만빈 대한신경외과학회 1994 Journal of Korean neurosurgical society Vol.23 No.6

저자들은 60마리의 흰쥐를 실험동물로 사용하여 측두하 접근으로 중대뇌동맥을 폐쇄하여 뇌경색을 유발하고, nimodipine 단독치료, 유도성 고혈압 단독치료, 혼합치료를 시행하여, 6시간, 12시간 및 24시간에 TTC 염색을 시행하여 뇌경색 크기를 측정하고 비교분석 하였다. 중대뇌동맥 폐쇄후 각 군간의 시간경과에 따른 뇌경색 크기는 nimodipine 치료군, 유도성 고혈압치료군, 혼합치료군에서 대조군에 비해 의미있게 감소되어 있었으며(p<0.05), 전체 뇌경색 크기의 평균치 역시 대조군에 비하여 nimodipine 치료군, 유도성 고혈압치료군, 혼합치료군에서 의미 있게 감소되어 있었다(p<0.05). 그러나 혼합치료군, nimodipine 치료군, 유도성 고혈압치료군 간의 비교에서는 혼합치료군에서 각각의 단독치료군보다 뇌경색 크기가 약간 더 감소하였으나, 통계학적 유의성있는 차이는 없었다. 따라서 이 실험의 결과로써는 임상에서 혼합치료가 nimodipine이나 유도성 고혈압 단독치료보다 효과가 우월하지는 않을 것으로 예측된다. 그러나 저자들의 뇌경색 모형이 영구성 국소 뇌경색 모형이었으므로 향후 가역성 뇌경색모형과 또한 뇌지주막하출혈을 유발한 동물실험에서 혼합치료의 효과를 더 추적 연구하는 것이 필요할 것으로 생각된다. The treatment with nimodipine is recommended as an effective therapy for the delayed ischemic neurological deficits(DIND) caused by cerebral vasospasm following aneurysmal subarachnoid hemorrhage. The induced hypertension is also widely accepted as a treatment method to reverse the DIND caused by cerebral vasospasm. Therefore, the combination of these two regimens may be considered as a more effective treatment method for the DIND than nimodipine or induced hypertension alone. The authors performed this experimental study to clear up this subject. In a series of 60 adult rats, a surgical occlusion of the middle cerebral artery(MCA) was carried out by a microsurgical technique. The animals were divided into 4 groups as follows ; group Ⅰ(N=15) : control group, group Ⅱ(N=15) : nimodipine treated group, group Ⅲ(N=15) : induced hypertension group, group Ⅳ(N=15) : combined nimodipine treated with induced hyertension group. Group Ⅱ animals were treated with an infusion of nimodipine intravenously(1㎍/Kg/min), and group Ⅲ animals were maintained high blood pressure(B.P) to 160㎜Hg by an infusion of dopamine intravenously(2㎍/Kg/min), and group Ⅳ animals were treated with an infusion of nimodipine and dopamine intravenously. All animals of each group were sacrificed at 6, 12 and 24 hours after MCA occlusion. Then the brain slices were obtained and stained with triphenyltetrazolium chloride(TTC). The size of the infarction area was quantified by a computer image analysis system and the size of the infarction area compared among each groups. The results showed that each size of the infarction area according to sacrifice time at 6, 12 and 24 hours after MCA occlusion was significantly smaller in group Ⅱ, Ⅲ, Ⅳ than that of group Ⅰ(p<0.05). The total size of the infarction area was significantly smaller in group Ⅱ, Ⅲ and Ⅳ than that of group Ⅰ(group Ⅰ vs. Ⅱ vs. Ⅲ vs. Ⅳ ; 13.23±2.60 vs. 9.17±2.23 vs. 10.24±2.23 vs. 8.85±2.23%, respectively. group Ⅰ vs. Ⅱ, Ⅲ and Ⅳ : p<0.05). However, there was not noticed any significant difference in the size of the infarction area among group Ⅱ, Ⅲ and Ⅳ. This study concludes that the treatment of the combined nimodipine with induced hypertension has no more benefit for the improving infarction in the permanent focal ischemic model than nimodipine or induced hypertension treatment alone.

A New Calibration of Deep MMT 6.5m Transit Survey Data for Variability Research

Seo-Won Chang,Yong-Ik Byun,Hong-Suh Yim 한국천문학회 2009 天文學會報 Vol.34 No.1