충남지역 NGO의 활동특성과 네트워크 중심성 결정요인

이관률(李官律),도묘연(都妙年) 한국지방자치학회 2016 韓國地方自治學會報 Vol.28 No.4

본 연구의 목적은 충남지역 NGO를 사례로 하여 NGO의 활동특성과 네트워크의 중심성 결정요인을 분석하는데 있다. 이를 위해 충남지역 3개 신문검색 통해 자료를 구축하고, NGO의 활동특성과 네트워크의 중심성 결정요인을 분석하였다. 주요 연구결과는 다음과 같다. 첫째, 충남지역 NGO의 활동특성을 살펴보면, 연평균 1.34회 활동을 하고 있다. 이들 활동은 주로 서비스적 활동, 협력적 활동, 1회에 6개 이상의 단체와 협력, 시군 중심의 활동, 대상 측면에서 대중지향적 활동, 방식 측면에서 비제도적 활동이다. 둘째, 연결중심성의 결정요인을 분석해 보면, 외향적 연결중심성에는 협력활동의 비중(+), 활동횟수(+), 협력기관수(+), 비NGO 협력단체 비중(-)이 영향을 미친다. 반면 내향적 연결중심성에는 활동횟수(+)와 비NGO 협력단체 비중(-)이 영향을 미친다. 셋째, 인접중심성의 결정요인을 분석해 보면, 외향적 인접중심성에는 비제도적 방식의 활동비중(+), 대중지향적 대상의 활동비중(+), 협력활동의 비중(+), 비NGO 협력단체 비중(+). 협력기관수(-)가 영향을 미친다. 그리고 내향적 인접중심성에는 비제도적 방식의 활동비중(+), 대중지향적 대상의 활동비중(+). 시군단위 활동비중(+), 서비스적 활동비중(-)이 영향을 미친다. 넷째, 사이중심성에는 활동횟수(+)와 협력기관수(+)만이 영향을 미친다. The purpose of this study is to look into NGOs in Chungnam region an example to investigate the activity characteristics of NGO cooperative network as well as its centrality determination factors. To this end, three kinds of Chungnam regional newspapers were analyzed and database was established to identify NGO activity characteristics and network centrality determination factors. Main findings of this study are as follows; First, in terms of the activity characteristics of NGOs in the Chungnam region, they were found to show 1.34 times of activity on average annually. These activities include mostly service activities, cooperative activities, cooperation with 6 or more groups at once, local activities, inside strategy activities in their target and non-institutional activities in their methodology. Second, degree-centrality determination factors were analyzed. The out-degree centrality was found to affect cooperative activity share (+), activity frequency (+), number of cooperation agencies (+), and share of non-NGO cooperative agencies (-). On the other hand, the in-degree centrality was found to affect the activity frequency (+) and share of non-NGO cooperative agencies (-). Third, closeness-centrality determination factors were analyzed. The out-closeness centrality was affected by the share of non-institutional activity (+), share of inside strategy activity (+), share of cooperative activity (+), share of non-NGO cooperative agencies (+), and number of cooperative agencies (-). The in-closeness centrality was found to be affected by the share of non-institutional activity (+), share of inside strategy activity (+), share of local activity (+), and share of service activity (-). Forth, the betweenness centrality was affected by activity frequency (+) and share of cooperative activity.

비영리 민간단체의 협력네트워크 구조분석

이관률(李官律),도묘연(都妙年) 한국지방자치학회 2012 韓國地方自治學會報 Vol.24 No.4

The purpose of this study is to analyze the structure of the cooperative network of Non Profit Organizations (NPOs) in Chungnam Region. To achieve the purpose, with the keywords of the names of NPOs, this researcher searched for the news articles written in 2009 to 2010 by three major daily newspapers in Daejeon and Chungnam Region and built a database. And then, the database was analyzed by the use of UCINET, a social network analysis program. The main results from the work are presented as follows. First, the lines and density of the cooperative network of NPOs in Chungnam Region were found low, whereas its the centrality of the cooperative network appeared high. Regarding each activity area, the lines and density were found low in all six areas, but the centrality was found somewhat high in local autonomy, educational and academic area, and cultural area. Secondly, the cooperative network of NPOs in Chungnam Region was found to be largely created. That is, 83.4% of the entire participants joined the sub-network. Regarding each activity area, sub-network was activated in local autonomy, welfare and environmental area, but was not activated in other areas. Thirdly, super network was found in the cooperative network of NPOs in Chungnam Region. In other words, from the perspective of areas, the cooperative network of NPOs in the local anatomy and welfare areas played a central role, and from the perspective of space, the cooperative network of NPOs in Cheonan, Asan, and Dangjin did so.

경상북도 거주 고위험군에서 브루셀라 감염에 관한 혈청 역학적 연구

이관,박우원,김성환,이도영,박미연,허영주,임현술,Lee, Kwan,Park, Woo-Won,Kim, Sung-Hwan,Lee, Do-Young,Park, Mi-Yeoun,Hur, Young-Ju,Lim, Hyun-Sul 대한예방의학회 2007 예방의학회지 Vol.40 No.4

Objectives : Cases of human brucellosis in Korea have recently increased due to the increasing incidence of bovine brucellosis. The authors conducted this study to elucidate the status of brucellosis through seroepidemiologic study. Methods : We selected our study population from a high risk group. We conducted a questionnaire survey and obtained blood samples to determine the seroprevalence of brucellosis antibodies for 10 days in February, 2005. The titers of brucellosis were measured by the combination of standard tube agglutination test (STA) and enzyme-linked immunosorbent assay (ELISA) test. Results : Our study subjects comprised 1,075 cases: 971 livestock workers, 51 veterinarians, and 53 artificial inseminators. In the STA test, 27 cases (2.5%) had titers of greater than or equal to 1:20. Of 1,068 cases (7 cases were excluded due to previous brucellosis), 7 cases of brucellosis were diagnosed with titers of 1:160, giving a seroprevalence of brucellosis of 0.66%. The seroprevalence in the male group was 0.95%, and that of livestock workers, veterinarians, and artificial inseminators was 0.52%, 4.17%, and 0.00%, respectively. The Spearman's correlation coefficient between the positive rate of bovine brucellosis per capita and household and human brucellosis was 0.806 and 0.744, respectively. The concordance rate between the Korea National Institute of Health and the Gyeongsangbuk-do Institute of Health and Environment by the STA and ELISA tests was 94.7% and 100.0%, respectively. Conclusions : The study results indicated in higher seroprevalence rate among veterinarians than among livestock workers and artificial inseminators. Because veterinarians may be exposed to this high risk, effective working guidelines for veterinarians to guard against brucellosis must be developed. Moreover, more extensive epidemiologic research for laboratory workers and meat handlers is needed.

일부 담배 재배농에서 담뱃잎농부병의 유병률 및 위험 요인

이관,남시현,임현술,Lee, Kwan,Nam, Si-Hyun,Lim, Hyun-Sul 대한예방의학회 2004 예방의학회지 Vol.37 No.1

Objectives : This study was carried out to understand the prevalence and risk factors of green tobacco sickness (GTS) among Korean tobacco harvesters. Methods : The authors conducted a questionnaire among the tobacco harvesters (1,064 persons from 555 out of 723 tobacco harvesting households) in Cheongsong-gun for 4 days from May 7 to 10, 2002. Results : The study subjects were 550 males and 514 females. The recognition and experience of GTS up until 2001 were 96.4% and 61.9%, respectively. The prevalence of GTS in 2001 was 42.5%, and was significantly higher in females than in males (59.0% vs. 26.6%, p<0.01). The incidence density of GTS according to the number of workdays in 2001 was 12.3 spells/100 person..days. The GTS symptoms reported by the tobacco harvesters in 2001 were dizziness in 441 cases (97.6%), nausea in 414 (91.6%), headache in 349 (77.2%) and vomiting in 343 (75.9%). The use of gloves, hat and wristlets, sweating at work and the number of working hours significantly increased the prevalence of GTS (p<0.05). Multiple logistic re- gression analysis was used to determine the factors significantly associated with GTS. Odds ratios for smoking, working over 10 hours and sweating at work were 0.26 (95% CI:0.19-0.35), 1.64 (95% CI:1.26-2.14) and 1.60 (95% CI:1.14-2.25), respectively. Of those who reported GTS in 2001, 311 cases (68.8%) underwent treatment from their local medical facilities. Conclusions : In Korea, there are many tobacco-harvesting households, and most may be stricken with GTS. More extensive epidemiological studies, including the incidence and associated risk factors, are expected and a surveillance system including measurements of cotinine in urine should be conducted.

사월마을 주민건강영향 조사

이관,전준민,반영운 한국환경보건학회 2022 한국환경보건학회 학술대회 자료집 Vol.2022 No.5

Mendelian Randomization Analysis in Observational Epidemiology

이관,임지연 한국지질동맥경화학회 2019 지질·동맥경화학회지 Vol.8 No.2

Mendelian randomization (MR) in epidemiology is the use of genetic variants as instrumental variables (IVs) in non-experimental design to make causality of a modifiable exposure on an outcome or disease. It assesses the causal effect between risk factor and a clinical outcome. The main reason to approach MR is to avoid the problem of residual confounding. There is no association between the genotype of early pregnancy and the disease, and the genotype of an individual cannot be changed. For this reason, it results with randomly assigned case-control studies can be set by regressing the measurements. IVs in MR are used genetic variants for estimating the causality. Usually an outcome is a disease and an exposure is risk factor, intermediate phenotype which may be a biomarker. The choice of the genetic variable as IV (Z) is essential to a successful in MR analysis. MR is named ‘Mendelian deconfounding’ as it gives to estimate of the causality free from biases due to confounding (C). To estimate unbiased estimation of the causality of the exposure (X) on the clinically relevant outcome (Y), Z has the 3 core assumptions (A1-A3). A1) Z is independent of C; A2) Z is associated with X; and A3) Z is independent of Y given X and C; The purpose of this review provides an overview of the MR analysis and is to explain that using an IV is proposed as an alternative statistical method to estimate causal effect of exposure and outcome under controlling for a confounder.

21세기의 세계와 한국

이관 한국에너지협의회 1991 에너지協議會報 Vol.21 No.-

일개 대학 신입생의 모발 염색 실태와 관련 증상

이관,임현술,Lee, Kwan,Lim, Hyun-Sul 대한예방의학회 2003 Journal of Preventive Medicine and Public Health Vol.36 No.3

Objectives : This study was carried out tn investigate the prevalence and symptoms related to hair dyeing among university freshmen. Methods : The authors conducted a questionnaire survey among 1,499 university freshmen from Mar 11 to 15, 2002. Results : The study group contained 710 tenses and 789 males. Up until 2002, 62.7% of the subjects had experienced hair dyeing, and this was significantly higher in females (66.2%, p<0.05), The period of first experience of hair dyeing was in high school for 361 cases (38.4%), after high school for 345 cases (36.7%t and before high school for 234 cases (24.9%), The major reasons of hair dyeing were 'to improve their appearance' in 465 cases (49.6%), and 'to follow the hair dyeing fashion' in 169 cases (18.0%). The prevalence of hair dyeing in 2002 was 47.8%, and again was significantly higher in females (53.7%, p<0.05). The major symptoms related to hair dyeing were 'cleaved and nonelastic hair' in 495 cases (69.0%), and 'thin and easily breakable hair' in 359 cases (49.3%). Of those, 361 eases (50.4%) appealed to three or more symptoms related to hair dyeing, Through multiple logistic regression, factors significantly associated with symptoms related to hair dyeing were found to be female (OR=2.14, 95% CI; 1.61-2.83), use of hair dryer (OR=1.36, 95% CI; 1.004-1.054), a frequency of hair dyeing of three or more (OR=1,40, 95% CI; 1.04-2.09), and a duration of processing hair dyeing of over 60 minutes (OR=2.18, 95% CI; 1.50-3.18). Conclusions : The prevalence and experience of hair dyeing were generally high among university freshmen. Therefore, more extensive epidemiological studies on the symptoms related to hair dyeing should be conducted.

Mining Semantically Similar Tags from Delicious

이관 한국정보관리학회 2009 정보관리학회지 Vol.26 No.2

The synonym issue is an inherent barrier in human-computer communication, and it is more challenging in a Web 2.0 application, especially in social tagging applications. In an effort to resolve the issue, the goal of this study is to test the feasibility of a Web 2.0 application as a potential source for synonyms. This study investigates a way of identifying similar tags from a popular collaborative tagging application, Delicious. Specifically, we propose an algorithm (FolkSim) for measuring the similarity of social tags from Delicious. We compared FolkSim to a cosine-based similarity method and observed that the top-ranked tags on the similar list generated by FolkSim tend to be among the best possible similar tags in given choices. Also, the lists appear to be relatively better than the ones created by CosSim. We also observed that tag folksonomy and similar list resemble each other to a certain degree so that it possibly serves as an alternative outcome, especially in case the FolkSim-based list is unavailable or infeasible.

울산공과대학의 좌표와 전망

이관,Lee, Gwan 한국대학교육협의회 1984 大學敎育 Vol.9 No.-