Hallervorden-Spatz 병 환자의 전신마취 하 치과치료 -증례보고-

이용기,서광석,김현정,염광원,안병덕,Lee, Yong-Ki,Seo, Kwang-Suk,Kim, Hyun-Jeong,Yum, Kwang-Won,Ahn, Byung-Deok 대한치과마취과학회 2007 Journal of Dental Anesthesia and Pain Medicine Vol.7 No.2

Hallervorden-Spatz disease (HSD) is a rare autosomal recessive disorder associated with excessive iron deposition in the basal ganglia. In general, HSD is characterized by onset in first two decade of life and by the presence of extra-pyramidal dysfunction including dystonia, rigidity, choreoathetosis. Other associated features include gait and posture disturbance, intellectual decline, seizure, tremor, dysarthria. These signs and symptoms are progressive. MRI is often demonstrated hypodensity in the basal ganglia which is probably suggestive of accumulation of iron. There is no specific treatment for HSD and 45% of patients die before reaching the age of 20 years. The managements directed at specific symptoms are often helpful. Especially, some surgical procedures like pallidotomy and gastrostomy are performed under general anesthesia. There is special need for careful management because of numerous anesthetic challenges like difficulty in cooperation, life-threatening airway obstruction and possibility of aspiration. We report a successful anesthetic management in a patient with HSD for dental procedures.

산림휴양지 유형에 따른 피톤치드(모노테르펜) 농도 비교

이용기,우정식,최시림,신은상,Lee, Yong-Ki,Woo, Jung-Sik,Choi, Si-Rim,Shin, Eun-Sang 한국환경보건학회 2015 한국환경보건학회지 Vol.41 No.4

Objectives: This study was conducted to provide scientific and effective information on phytoncides, which are associated with forest healing, and to activate recreational forests. Methods: The target sites were natural recreation forests, a forest park and an arboretum, and the control sites were three urban parks. The samples were collected at a volume of 6.0 L and a flow rate of 0.1 L/min for one hour using a low volume pump and the solid adsorbent sampling method. The phytoncide compounds adsorbed in the Tenax TA tube were analyzed by a automatic heat desorption unit and GC-MS. Results: By type of recreational forest, the annual concentrations of phytoncide (monoterpene) for the forest park showed the highest concentration with $1.450{\mu}g/m^3$, while those for the arboretum showed the lowest concentration at $0.892{\mu}g/m^3$, and thus the concentration of the forest park was approximately 1.6 times higher than the arboretum. The season showing the highest concentration of phytoncides was summer (June) and the forest park was the highest among the recreational forests. The concentrations of major components for phytoncide showed in descending order: ${\alpha}-pinene$, ${\beta}-pinene$, camphene, 3-carene and limonene. The seasonal concentration of ${\alpha}-pinene$, camphene and ${\beta}-pinene$ by type of recreational forest increased in April, which is characterized by low temperature and humidity, and the seasonal concentration of camphene decreased with higher humidity. The meteorological factors which had the high correlation with the concentration of total terpene were temperature and humidity. $CO_2$ and $O_2$ showed an inverse correlation. Conclusion: The major components of phytoncide were ${\alpha}-pinene$, ${\beta}-pinene$, camphene, 3-carene and limonene in descending order of concentration. Further and systematic study on the chemical nature of individual phytoncides, and on the effect of phytoncides on humans needs to be performed.

적층 제조형 방식의 3D 프린터로 제작한 뇌 팬텀의 유용성

이용기(Lee Yong-Ki),안성민(Ahn Sung-Min) 대한방사선과학회(구 대한방사선기술학회) 2020 방사선기술과학 Vol.43 No.6

The price of the Brain phantom (Hoffman 3D brain phantom) used in nuclear medicine is quite expensive, it is difficult to be purchased by a medical institution or an educational institution. Therefore, the purpose of present research is to produce a low-price 3D brain phantom and evaluate its usefulness by using a 3D printer capable of producing 3D structures. The New 3D brain phantom consisted of 36 slices 0.7 mm thick and 58 slices 1.5 mm thick. A 0.7 mm thick slice was placed between 1. 5 mm thick slices to produce a composite slice. ROI was set at the gray matter and white matter scanned with CT to measure and compare the HU, in order to verify the similarity between PLA which was used as the material for the New 3D brain phantom and acrylic which was used as the material for Hoffman 3D brain phantom. As a result of measuring the volume of each Phantom, the error rate was 3.2% and there was no difference in the signal intensity in five areas. However, there was a significant difference in the average values of HU which was measured at the gray and white matter to verify the similarity between PLA and acrylic. By reproducing the previous Hoffman 3D brain phantom with a 100 times less cost, I hope this research could contribute to be used as the fundamental data in the areas of 3D printer, nuclear medicine and molecular imaging and to increasing the distribution rate of 3D brain phantom.

20세기 전반 지역사회의 재편과 지역민의 대응 ; 일제시기 면 단위 유력자의 구성과 지역정치 -전남 장흥군(長興郡) 용산면(蓉山面) 사례를 중심으로-

이용기 ( Yong Ki Lee ) 성균관대학교 대동문화연구원 2009 大東文化硏究 Vol.67 No.-

일제시기 을종 농업학교의 특성과 학생 구성 : 상주공립 농잠학교의 사례

이용기 ( Lee Yong-ki ) 국민대학교 한국학연구소 2021 한국학논총 Vol.55 No.-

This study starts with the purpose of expanding research on agricultural schools during the Japanese colonial period into the context of social history. To this end, the characteristics of Sangju Public Agricultural & Sericultural School(SPASS), which was a three-year term second-grade(Euljong, 乙種) agricultural school, and the personal composition of students were examined. SPASS was established in Gyeongsangbuk-do in 1921, and was founded by the government rather than active participation of the local community. As a school specializing in sericulture, it had a professionalism, but because of its limitations as an Euljong school, it continued to try to be promoted to a first-grade(Gabjong, 甲種) school. SPASS had a lower entrance competition rate compared to the five-year term Gabjong school, while the graduation rate was higher. This means that Euljong agricultural school was relatively incompetent, but had an atmosphere of conformity to the existing order. SPASS continued without much easing of the old age structure, and even in the mid-1920s, those who did not receive formal education accounted for a significant proportion of the enrolled students. In addition, the socioeconomic background of the students was extremely concentrated in agriculture, and the place of origin was limited to those from Gyeongsangbuk-do. It can be seen that SPASS has limited influence on farmhouses in the area near the school location. The fact that the three-year Euljong Agricultural School had a lower status and influence than the five-year Gabjong Agricultural School showed that the hierarchical structure of education was working strongly in Koean society during the Japanese colonial period.

일제시기 모범부락의 내면과 그 기억 : 전남 강진군 성전면 수양리 사례를 중심으로

이용기(Lee Yong-ki) 고려사학회 2010 한국사학보 Vol.- No.38

골프연습장의 환경특성이 서비스품질, 고객만족 및 구매행동의도에 미치는 영향

이용기(Lee Yong-ki),신두철(Shin Doo-chul),류철(Lryu Cheol) 한국스포츠산업경영학회 2000 한국스포츠산업경영학회지 Vol.5 No.1

본 연구는 골프연습장의 환경특성 중 어떠한 요인들이 소비자들의 전반적 서비스품질 평가에 영향을 미치며, 그 결과 고객만족 및 구전, 재이용의도 등의 구매행동의도에 어떠한 영향을 미치는 가를 실증분석 하였다. 서울, 부산, 대전, 충북, 경기의 5개 지역에 소재하고 있는 18개 골프연습장의 126명 이용고객으로부터 자료를 수집하였으며, 경로분석을 이용하여 연구가설을 분석하였다. 실증분석 결과, 본 연구의 요약은 다음과 같다. 첫째, 골프연습장의 환경특성 중 고객서비스, 시설/장비, 편리성 등의 요인이 전반적 서비스품질 평가에 유의적인 정(+)의 영향을 미치는 것으로 나타났다. 둘째, 전반적 서비스품질의 지각 정도가 높을수록 고객만족이 높아지며, 그 결과 구전커뮤니케이션과 재이용의도에 유의적인 영향을 미치는 것으로 나타났다. The purpose of this study was to investigate the effects of golf training facilities' environments on evaluation of service quality and purchase behavior intentions. To analyze the data collected from 126 respondents, path analysis was employed. The results can be summarized as follows. First, customer service, facilities/equipment, and convenience factors had a significant positive effect on the perception of overall service quality. Second, the higher perceived overall service quality, the higher customer satisfaction, in turn, the higher word-of-mouth communications and repurchase intentions.

3·1운동 연구의 흐름과 민족주의의 향방

이용기(Lee, Yong-ki) 한국사학회 2020 史學硏究 Vol.0 No.139

이 글은 3·1운동 연구의 흐름을 복기함으로써 한국 근대사 연구의 인식 지형의 변화를 검토하되, 민족주의 관점의 안착, 굴절, 내파의 과정을 중심으로 접근한다. 3·1운동 연구는 운동 50주년인 1969년부터 본격화되었는데, 당시 한국사 학계를 풍미하던 민족주의에 바탕을 두면서도 박정희 정권 시기의 반공주의에 제약되어 ‘보수적 민족주의’ 경향을 띠었다. 3·1운동 70주년을 맞이한 1989년에는 1980년대의 정치적 · 이념적 스펙트럼을 반영하여 연구 시각의 분기가 뚜렷하게 나타났다. 주류 학계는 기존의 보수적 입장을 고수하는 경향과 중도적 민족통합을 지향하는 경향으로 구분되었다. 진보적 입장의 소장 연구자들은 민족모순과 계급모순의 통일적 인식을 지향하고 계급적 함의를 가진 민중을 강조하는 ‘민중적 민족주의’ 경향을 보였다. 21세기에 들어와서는 ‘탈민족주의’ 경향의 연구가 두드러졌다. 여기에서는 지배와 저항의 이분법적 인식과 단일한 집합주체의 설정에서 벗어나 복수의 주체들의 다층적 행위에 주목하였으며, 민족주의에서 벗어나 민주, 평화, 인권 등의 가치를 내세웠다. 이처럼 3·1운동 연구의 관점이 보수적 민족주의에서 민중적 민족주의로, 그리고 최근에는 탈민족주의로 변화한 것은 한국근대사 연구의 인식론적 지형의 전환을 보여준다. This article examines the changes in the perceptional terrain of the study of Korean modern history by reviewing the flow of the March 1st Movement study, but approaches the process of settlement, refraction, and implosion of the nationalist view. The research on the March 1st Movement began in earnest from 1969, the 50th anniversary of the movement, and while based on the nationalism that prevailed in Korean history academic circles at that time, it was constrained by the anti-communism of the Park Chung-hee regime, and thus tended to be a “conservative nationalism.” In 1989, which celebrated the 70th anniversary of the March 1st Movement, a divergence of research perspectives emerged clearly reflecting the political and ideological spectrum of the 1980s. The mainstream academia was divided into a tendency to adhere to the existing conservative position and a tendency toward a moderate national unity. The junior researchers holding a progressive position showed a tendency to “popular nationalism”, which aimed for a unified perception of national and class contradictions, and emphasized the people with class implications. In the 21st century, research on the trend of “post-nationalism” was prominent. These studies focused on the multi-layered behavior of multiple subjects, moving away from the dichotomy of domination and resistance, and raised values such as democracy, peace, and human rights apart from nationalism. As such, the change in the perspective of the March 1 Movement study from conservative nationalism to popular nationalism and recently post-nationalism shows a shift in the epistemological topography of the study of Korean modern history.

라이센서 형태와 라이센시 속성에 따른 라이센싱 효과에 관한 연구

이용기(Lee, Yong-Ki),김관호(Kim, Kwan Ho),김경식(Kim, Kyoung Sik) 한국상품학회 2011 商品學硏究 Vol.29 No.2

라이센서와 라이센시 모두에 이익을 줄 수 있는 라이센싱 전략은 기업의 차별적 브랜드 전략으로 각광받고 있다. 이용 빈도와 매출증대와 같은 긍정적인 실무적 효과에도 불구하고 라이센싱과 관련된 학문적 연구에서는 긍정적인 효과성(Simoninand Ruth 1998 ; Washburn, Till, and Priluck2000)과 부정적인 효과성(Tilland Shimp 1998; Kellerand Aaker 1992; Loken and John 1993)간의 논의가 활발하다. 특히, 실무적 측면에 비해 아직까지라 이 센싱 전략을 브랜드 전략 관점에서 연구한 것은 매우 미흡했다. 따라서 본 연구에서는 브랜드자산 구축 전략의 하나인 라이센싱의 효과성을 실증적으로 분석해 보았다. 먼저, 라이센서가 다양한 업체에 라이센스를 제공하는 다중적 라이센싱과 한 개의 업체에 독점적으로 라이센스를 제공하는 독점적 라이센싱 중 라이센서 태도에 더욱 영향을 미치는 라이센싱 형태를 파악해 보았다. 둘째, 라이센싱의 효과성을 라이센시 측면에서 설명하는 데 있어라이센싱이 전과 이후를 구분하여라 이 센싱이 라이센시 태도에 영향을 미칠 수 있는지 비교해 보았다. 마지막으로 라이센 시 속성에 따라 차별적인 라이센싱의 효과성을 제안하려 하면서 라이센시의 속성을 실용적 속성과 쾌락적 속성으로 분류하고 라이센싱후의 라이센시 태도를 비교해 보았다. 연구결과를 살펴보면, 먼저, 라이센서는 다중적 라이센싱을 하는 것보다 독점적 라이센싱을 하는 것이 효과적인 것으로 나타났다. 또한, 라이센싱은 실제로 라이센시에게 긍정적인 영향을 줄 수 있는 것으로 나타났다. 그러나 이는 라이센시의 속성에 따라 차별적으로 나타났는데, 쾌락적 속성을 소유한 라이센시보다 실용적 속성을 소유한 라이센시에게 라이센싱 효과는 더욱 긍정적으로 나타났다. Licensing which is brand strategy for company is popular in practical field. But there is no research which is aspect of differential brand strategy based on viewing of combining licensor and licensee. To achieve the research objectives, the authors investigated the effect of licensing which is the valuable strategy increasing brand equity. The research experiments showed that under the type of licensor, consumers preferred licensor which focus on monopolistic licensing rather than multiple licensing. In addition, this research addresses that a utilitarian licensee is relatively preferred over the same hedonic licensee influenced by licensing. The theoretical and managerial implications and contributions are discussed then the limitations and the future research opportunities are suggested.

시장지향성에 대한 관리자와 종업원간 , 호텔등급별 지각차이 및 사업성과의 관계 분석

이용기(Yong Ki Lee),장경란(Kyung Lan Jang),임종달(Jong Dal Im) 한국마케팅학회 2000 ASIA MARKETING JOURNAL Vol.2 No.1