• Proceedings of the KOR-BRONCHOESO Conference
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• 1983.05a
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• pp.6.3-6
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• 1983

A total of 287 patients with foreign body in the air and food passage was treated in our unit between 1972 and 1982 and the following results were obtained : 1) The ratio between food and air passage was about 8 : 1. 2) The most common foreign bodies in the esophagus were coin (55.8%) and bone (28.5 %). Beans were the most common in the air passage (39.4%). 3) In sex distribution, there was no significant difference between male and females in the esophageal foreign bodies, but in the air passage male were prevalent (M : F = 57.9% : 42.1%). 4) In the age incidence, 61.8 % of the esophageal foreign bodies and 71 % of the foreign bodies in the air passage were under 5 Years of age. 5) The most prevalent site of Lodgement in the esophagus was the first narrowing (82.3 %). In the air passage, bronchial foreign bodies were more common and the right bronchus was the more frequent site (2 : 1). 6) In duration of lodgement, 62.2 % of esophageal foreign bodies and 55.2 % of foreign bodies in the air passage were removed within one day. 7) The most common complication of foreign bodies in the air passage was pneumonia (55.5%). 8) The removal of the foreign bodies in the air passage was performed by ventilation - bronchoscopy (84.3%). Two of 38 cases expired.

• Proceedings of the KOR-BRONCHOESO Conference
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• 1983.05a
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• pp.10.1-10
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• 1983

We have analysed the 76 cases of the foreign bodies of our ENT department during the period from Jun. 1973 to Feb. 1983. The following results were obtained and were reported. 1) Distribution of these whole 105 cases, 68 cases (64.8 %) were lodged in esophagus, 13 cases (12.4 %) were in the nasal cavities, 9 cases (8.5 %) were in the oral cavity and throat, 8 cases (7.6 %) were in the air passages, and 7 cases (6.7 %) were in the external auditory canal. 2) The sorts of the esophageal foreign bodies, the coins were the most cases(53 cases - 77.9 %) and other sites were shown of variable kinds. 3) Age distribution of the esophageal foreign bodies were mostly in under 5 years of age (49 cases - 72 %) and in cases of the air passages, all the 8 cases were in under 10. 4) In the localities of the esophageal foreign bodies, first narrowing was the most frequent site (61 cases - 89.7 %), and of air passages, 6 cases were in the left main bronchus, more that of Rt. main bronchus. 5) During the lodgement of esophageal foreign bodies, 58 cases (85.3 %) were visited to our ENT department within 24 hours. In the cases of air passages, most were viaited in 3 to 7 days (6 cases -75 %).

• Korean Journal of Microbiology
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• v.54 no.4
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• pp.448-452
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• 2018

The full genome sequence of Bacillus safensis KCTC 12796BP which had been isolated from the marine sponge in the seawater of Jeju Island, was determined by Pac-Bio next-generation sequencing system. A circular chromosome in the length of 3,935,874 bp was obtained in addition to a circular form of plasmid having 36,690 bp. The G + C content of chromosome was 41.4%, and that of plasmid was 37.3%. The number of deduced CDSs in the chromosome was 3,980, whereas 36 CDS regions were determined in a plasmid. Among the deduced CDSs in chromosome, 81 tRNA genes and 24 rRNA genes in addition to one tmRNA were allocated. More than 30 CDSs for sporulation, 16 CDSs for spore coat, and 20 CDSs for germination were also assigned in the chromosome. Several genes for capsular polysaccharide biosynthesis and for flagella biosynthesis and chemotaxis in addition to genes for osmotic tolerance through glycine-choline betaine pathway were also identified. Above all, the biosynthetic gene cluster for anti-allergic compounds seongsanamides were found among two non-ribosomal peptide synthetase (NRPS) gene clusters for secondary metabolites.

• Conservation Science in Museum
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• v.24
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• pp.37-54
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• 2020

This paper presents an archaeological interpretation of the results of conservation treatment and scientific analysis of the ancient Chinese bronze coin known as Huo Quan(貨泉) coins excavated from Tomb No. 4 at the Madeung Archaeological Site in Heukcheon-ri, Haenam. Huo Quan coins were issued in China by Wang Mang(王莽) when he founded the short-lived Xin(新) Dynasty and were used in the Samhan(三韓) period in Korea. A total of thirteen Huo Quan coins were excavated from the Madeung Archeological Site with some coins fused to each other. They were classified as clusters A, B, and C. On a coin from the B cluster the classical Chinese characters "貨泉" are visible to the naked eye, but no characters are visually identifiable in the other coins. For conservation treatment, foreign substances attached to the surfaces of the coins were removed, weak materials were reinforced with protective coatings, and fragments were reattached to the main bodies of the coins. Next, Nano CT scanning was conducted to identify the exact number of coins within the clusters and examine the surface condition of the coins. It revealed the inscription "貨泉" on twelve out of thirteen coins. In addition to these coins excavated from Heukcheon-ri, a number of coins were excavated from a tomb in Bokryong-dong, Gwangju. This necessitates an investigation into the possible development of a monetary economy in this region.

• Journal of Environmental Impact Assessment
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• v.30 no.4
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• pp.237-246
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• 2021

The similarity of hourly PM₁₀ and PM_2.5 concentration profiles of the atmospheric monitoring stations in Gyeonggi-do was evaluated through the multilateral analysis between stations. The existing category for most stations in the regions shows relatively low Pearson correlation values of 0.68 and 0.7 for PM₁₀ and PM_2.5 on average respectively, and some monitoring stations revealed high relationships over 0.8 to other regions. Since the current regions are mainly categorized by cluster analysis based on the number of occurrence of high concentration events and geological factors, it is necessary to reclassify them by concentration characteristics for precise fine dust management. In accordance, multi-dimensional scaling being able to visualize could categorize the regions based on regional emission contribution rate and hourly fine dust concentration. As a result of the current analysis, PM₁₀ and PM_2.5 could be reclassified into five regions and fourregions, respectively.

• Korean Journal of Culture and Social Issue
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• v.27 no.3
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• pp.259-284
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• 2021

The present study was conducted to develop and validate a psychological scale that measures individuals' attitude toward unification of Korea (ATU-K). Building on major theoretical perspectives on the structure of attitude and the attitude-behavior link, we specified two sub-components each representing the cognitive and the affective dimension of people's attitude toward unification. In a survey that involved a stratified sample of Korean adults (N = 1,500), we found strong evidence showing the construct validity of the ATU-K scale. We also found evidence for the convergent and discriminant validity of the scale. In a second survey involving another stratified sample of 1,500 Korean adults, we found the utility of the ATU-K scale in predicting people's intention to engage in unification-oriented behaviors (personal/collective). We also found that the ATU-K scale fares better in predicting the intention vis-a-vis the other measures of unification-related beliefs reported in previous research. We discuss implications of our findings and directions for future research.

• Journal of Korean Library and Information Science Society
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• v.53 no.4
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• pp.233-266
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• 2022

The purpose of this study is to derive and propose agenda to improve the quality of minority services provided by regional cental libraries at the present time when information gap is deepening. First, text mining and topic modeling were conducted on 144 studies in the field of library and information science that dealt with minorities, and the discussions surrounding minorities in the domestic library world were examined in detail. Next, the current status of services for minorities in Regional central libraries were examined in detail, and tasks requiring discussion were sought in planning and operation of services for minorities in Regional central libraries. To this end, interviews were conducted with practitioners, in charge of services for minorities at Regional central libraries. Specifically, 1) awareness of minorities by practitioners, 2) current status of minority services, and 3) responsibility and role of Regional central libraries for planning and operating minority services and necessary support were analyzed. Based on the analysis results, the following tasks were derived. 1) Recategorization of minority groups, 2) Establishment of reference resource, 3) Reinforcement of education, and 4) Cooperation support between regional representative libraries and local public libraries were derived and suggested.

• Applied Chemistry for Engineering
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• v.34 no.4
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• pp.331-346
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• 2023

Recently, green processes that can be directly used in an energy-efficient and electrified society to achieve carbon neutrality are attracting attention. Existing heat and pressure-based desalination technologies that consume tremendous amounts of energy are no exception, and the growth of next-generation electrochemical-based desalination technologies is remarkable. One of the most representative electrochemical desalination technologies is electrochemical ion separation (EIONS) technology, which includes capacitive desalination (CDI) and battery desalination (BD) technology. In the research field of EIONS, various system applications have been developed to improve system performance, such as capacity and cyclability. However, it is very difficult to understand the meaning and novelty of these applications immediately because there are only a few papers that summarize the research background for domestic readers. Therefore, in this review paper, we aim to describe the technological advances and individual characteristics of each system in clear and specific detail about the latest EIONS research. The driving principle, research background, and strengths and weaknesses of each EIONS system are explained in order. In addition, this paper concluded by suggesting the future development and research direction of EIONS. Researchers who are just beginning out in EIONS research can also benefit from this study because it will help them understand the research trend.

• Clinical and Experimental Pediatrics
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• v.52 no.2
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• pp.220-226
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• 2009

Purpose : Macrovascular complications are the main cause of mortality in type 1 diabetes mellitus (T1DM). The purpose of this study was to clarify the presence of early vascular changes and to assess the risk factors of macrovascular complications in young adults with T1DM diagnosed in childhood and adolescence. Methods : Seventy-two patients ($23.9{\pm}2.4$ years) with T1DM diagnosed before 18 years of age and twenty normal controls were included. The incidence of hypertension, dyslipidemia, and other risk factors of macrovascular complication were reviewed. Flow-mediated vasodilation (FMD) and mean intima-media thickness (IMT) measured by ultrasound were compared between patients and control subjects, and their correlations with macrovascular risk factors were analyzed. Results : Of the 72 patients, 32 (44.4%) had hypertension. The proportions of maleness (P=0.03) and mean body mass index (P=0.04) were higher in the hypertensive patients than in normotensive patients. Thirty-one (N=69, 44.9%) patients had dyslipidemia and LDL-cholesterol was positively correlated with mean HbA1c (r=0.32, P=0.008) and total daily insulin dose (r=0.27, P=0.02). The mean IMT was significantly higher in patients than in control subjects ($0.43{\pm}0.06$ mm vs $0.39{\pm}0.06$ mm, P=0.03). There was no difference in the value of FMD between patients and controls, but the duration of the disease after pubertal onset was negatively correlated with FMD (r=-0.34, P=0.01). Conclusion : Hypertension, dyslipidemia and atherosclerotic vascular change were observed in young adults with T1DM diagnosed during childhood and adolescence; this strongly suggests that meticulous screening of macrovascular complications and control of their risk factors should be conducted.

• Journal of the Korean Institute of Landscape Architecture
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• v.41 no.5
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• pp.78-90
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• 2013

The purpose of this study was to analyze the types and characteristics of public complaints caused by the landscape architecture projects in the case of apartment complex. Furthermore, its purpose was also to propose as the basis data for the minimization of complaints in the course of future landscape architecture projects. To analyze and categorize the apartment complex civil complaints, we collected basic and case study data from LH Corporation, SH Corporation and GICO from 2009 to 2012. We also categorized 672 landscape complaints to 73 categories and conducted a survey from residents and landscape architecture. This Survey is to use IPA can collect character(public-private), handling of civil affair(easy-hard) and analyze typical characters and difference of civil complaint awareness between landscape architecture and residents. First, we were categorized 73 civil complaints by type in 5 categories such as park, green space and street trees, pedestrian road, facilities, and others. Second, the most common landscape complaints appear in green spaces, street trees, facilities, pedestrian roads and park orders. Third, results of the analysis conducted for each item which are publicity and measures the ease. 'Facilities', 'landscape and greenery', 'pedestrian road' and others were commonly appears from residents and professional awareness of the complaints. However, complaints of park appear different awareness between landscape architecture and residents. Fourth, 35 from 73 civil complaints(47.9%) are having high publicity and easy to measure, 25 civil complaints(34.2%) has analyzed to individual and difficult to measure so about the these complaints need to check from the design step so that it is necessary to minimize the problem of additional expense by civil complaints burden and decrease the confidence of residence problem were considered.