LUnar Space Environment Monitor (LUSEM), the first achievement in Korea for the CLPS Project

Go Woon Na,Jongho Seon,Kyu-Sung Chae,Woo-Hyeong Seol,Chan-Haeng Lee,Young-Jun Choi,Dukhang Lee,Chae Kyung Sim,Seul-Min Baek,Jehyuck Shin,Jun Yong Park,Young Jin Jun 한국천문학회 2023 天文學會報 Vol.48 No.2

호흡기 ; 만성 폐쇄성폐질환의 폐기능 검사와 운동 검사의 비교

나운태 ( Woon Tae Na ),박주호 ( Joo Ho Park ),이고은 ( Go Eun Lee ),권선중 ( Sun Jung Kwon ),손지웅 ( Ji Woong Son ),나문준 ( Moon Jun Na ),최유진 ( Eu Gene Choi ) 대한내과학회 2009 대한내과학회지 Vol.76 No.5

Background/Aims: Chronic obstructive pulmonary disease (COPD) is characterized by an incompletely reversible airflow limitation. Pulmonary function test (PFT) has been considered the gold standard test for diagnosis and severity evaluation in COPD. However, PFT by spirometry does not provide information about exercise performance in COPD patients. Therefore, the present study was performed to compare pulmonary function determined by spirometry with exercise function determined by cardiopulmonary exercise test (CPET) for grading of COPD. Methods: A total of 105 patients with airway obstruction were examined. The patients` mean age was 65 years, and the mean smoking history was 27 pack-years. The patients underwent spirometry and CPET. The results were analyzed by categorical statistical comparison, based on the Global Initiative for Chronic Obstructive Lung Disease (GOLD) and American Thoracic Society guidelines. Results: The two methods agreed on the classification of only 44 patients (42%). Of the remaining patients, 21 (20%) were found to be less severe according to CPET than according to PFT, whereas 40 (38%) were more severe. Those who were more severe according to CPET had significantly low maximal minute ventilation, low anaerobic threshold, low oxygen pulse, and high breathing reserve. Conclusions: The present study revealed the large disagreement between the results of resting and exercise pulmonary function tests, and therefore suggests the need for a novel approach or guideline. Additional cardiological evaluation may be needed in patients classified as more severe according to CPET, who are assumed to have a greater degree of impairment of cardiovascular function. (Korean J Med 76:571-577, 2009)

Comparison of TheraCal LC, Mineral trioxide aggregate, and Formocresolas pulpotomy agents in rat molar

Bin-Na Lee(이빈나),Young-Sang Song(송영상),Go-Woon Lee(이고운),Young-Hoon Kim(김영훈),Hoon-Sang Chang(장훈상),Yun-Chan Hwang(황윤찬),Won-Mann Oh(오원만),In-Nam Hwang(황인남) 대한치과재료학회 2017 대한치과재료학회지 Vol.44 No.2

TheraCal LC, a new light-cured, resin-modified calcium silicate-filled base/liner material, has been introduced as a pulpotomy agent. The aim of this study was to evaluate the capacity of hard tissue formation and pulpal response after pulpotomy with TheraCal LC. Twenty-two 9-week-old male rats were anesthetized, cavities were prepared in maxillary first molars and pulps were capped with formocresol (FC), mineral trioxide aggregate (MTA), and TheraCal LC. Specimens obtained from rats were scanned using a high-resolution micro CT system. The specimens were prepared and evaluated histologically, and immunofluorescence assay was performed to assess the dentin matrix protein-1 (DMP-1) expression. On micro CT analysis, the MTA and TheraCal LC groups showed thicker hard tissue formation than the FC group. On hematoxylin and eosin (H&E) staining, MTA and TheraCal LC groups showed dentine bridge formation with vital pulp beneath the materials. On immunofluorescence analysis, DMP-1 was highly expressed in the TheraCal LC group compared to the FC group. TheraCal LC showed similar capacity to form hard tissue as MTA when it was used as a pulpotomy agent. Because of its good manipulation and faster setting time compared to MTA, TheraCal LC could be considered as a good alternative to MTA.

경제 블로킹의 상황적 이슈에 따른 자민족 중심주의가 국산 제품과 외국산 제품에 대한 평가 및 브랜드 간섭효과에 관한 연구

고지숙(Go, Ji Sook),이경은(Lee, Kyung Eun),나운봉(Na, Woon Bong) 한국상품학회 2020 商品學硏究 Vol.38 No.5

본 연구는 자민족 중심주의를 유발하는 상황 하에서 외국산 제품과 국산 제품의 품질을 판단함에 있어 자민족 중심주의가 제품평가에 직접적인 영향을 미칠 것인가를 중점적으로 살펴보았다. 구체적으로 선행연구들은 자민족 중심주의 성향이 소비자의 반응과 관련하여 외국산 제품에 대한 태도에 부정적인 관계가 있다는 단편적인 연구들이 주를 이루고 있었다면, 본 연구는 제품 유형(실용재 vs. 쾌락재), 관여도(저관여 vs. 고관여), 브랜드 간섭효과(제시 vs. 미제시) 등 다양한 변수들의 효과를 세밀하게 규명하고자 하였다. 연구결과를 요약하면 다음과 같다. 자민족 중심주의가 높은 소비자는 낮은 소비자보다 외국산 제품을 부정적으로 평가하는 반면에 국산 제품을 긍정적으로 평가하는 것으로 나타났다. 이러한 결과는 제품유형과 관여도에 따른 차이가 발생하지 않는 것으로 나타났다. 더 나아가 자민족 중심주의에 따른 제품평가가 브랜드 제시로 인해 개선되는 브랜드 간섭효과가 나타나는지 살펴보았다. 그 결과, 외국산 제품의 경우에는 브랜드 간섭효과로 인하여 자민족 중심주의가 높은 집단과 낮은 집단 모두에서 제품 평가가 더 긍정적으로 개선되는 것으로 나타났다. 반면, 국산 제품의 경우에는 자민족 중심주의가 낮은 집단에서만 브랜드 제시로 인해 제품평가가 개선되는 브랜드 간섭효과가 나타났다. 본 연구결과를 토대로 자민족 중심주의가 제품평가에 미치는 영향에 대한 이론적, 실무적 시사점을 제공하였다. This study examined that consumer ethnocentrism influences product quality evaluation toward foreign products and domestic products in situation induced by patriotism. Previous studies have focused on fragmentary studies that showed that consumer ethnocentrism had a negative relationship with the quality evaluation of foreign products. Therefore, this study sheded light on clarifying the effects of various variables such as product type, degree of involvement, and brand interference effects. The results can be summarized as follows: First, while consumers with high ethnocentrism evaluated foreign products more negatively than consumers with low ethnocentrism, consumers with high ethnocentrism evaluated domestic products more positively than consumers with low ethnocentrism. However, these results showed that there was no moderating effect depending on product type and involvement. Furthermore, we investigated whether the difference in product quality evaluation based on consumer ethnocentrism resulted in improved interference effects due to brand presentation. As a result, brand interference effects were seen in both high and low consumer ethnocentrism groups in the case of foreign products, while brand interference effects were only seen in low consumer ethnocentrism groups in the case of domestic products. Based on the results of this study, theoretical and practical implications were provided on the impact of consumer ethnocentrism on product quality evaluation.

Responses of Colletotrichum gloeosporioides isolated from persimmon trees in Sangju and Yeongdong to Qoi and DMI-fungicides

Hyeon Jeong An,Hee Been Na,Tae Heon Lim,Taehyun Chang,Janghoon Song,Dong Woon Lee 한국농약과학회 2017 한국농약과학회 학술발표대회 논문집 Vol.2017 No.4

Change of responses of Colletotrichum gloeosporioides isolated from persimmon trees to MBC and dithiocarbamate fungicides

Hyeon Jeong An,Hee Been Na,Tae Heon Lim,Taehyun Chang,Janghoon Song,Dong Woon Lee 한국농약과학회 2017 한국농약과학회 학술발표대회 논문집 Vol.2017 No.4

상주와 영동지역 감나무에서 분리한 Colletotrichum horii에 의한 탄저병균의 탈메틸화억제(DMI)계 살균제에 대한 감수성 변화

안현정(Hyeon Jeong An),나희빈(Hee Been Na),임태헌(Tae Heon Lim),장태현(Taehyun Chang),송장훈(Janghoon Song),이동운(Dong Woon Lee) 한국농약과학회 2018 농약과학회지 Vol.22 No.3

Anthracnose disease caused by Colletotrichum spp., was one of the most serious disease in persimmon (Diospyros kaki). This study was evaluated to survey of Colletotrichum horii isolated from Sangju, Gyeongsangbuk-do and Yeongdong, Chungcheongbuk-do at 2016 growth responses on demethylation inhibitors (DMI) fungicides (prochloraz manganese complex, fluquinconazole+prochloraz, metconazole, tebuconazole) media. All isolates collected Sangju (127 isolates) and Yeongdong (148 isolates) showed inhibited mycelium growth over 91% on media with DMI fungicides in this experiment. Average EC<SUB>50</SUB> values (μg/ml) was lower in Yeongdong isolates than Sangju excepted prochloraz manganese complex. The lowest EC<SUB>50</SUB><SUB></SUB> value was 0.004 ppm from prochloraz manganese complex in Sangju isolates however 0.0046 ppm from fluquinconazole+prochloraz in Yeongdong isolates. DMI fungicides are judged to be sustainable because there is no change in sensitivity to the Colletotrichum spp. in two regions.

Measurements of relative abundance of high-energy cosmic-ray nuclei in the TeV/nucleon region

Nam, Shin-Woo,Jeon, Jin-A,Na, Go-Woon,Nam, Ji-Woo,Park, Il-H.,Park, Na-Hee,Yang, Jong-Mann 한국우주과학회 2009 한국우주과학회보 Vol.18 No.1

의료관광서비스의 창조적 편익 세분화

이경은(Kyung Eun Lee),고지숙(Ji Sook Go),나운봉(Woon Bong Na) 피터드러커 소사이어티 2016 창조와 혁신 Vol.9 No.4

본 연구는 의료서비스의 선택행동이 동기적 요인에 의하여 결정될 것이라는데 착안한 연구이다. 따라서 본 연구에서는 기존의 연구에서 단순히 편익이나 속성으로 서비스 선택결정과정을 할 것이라는 관점을 다시 재조명하였다. 이러한 현상을 살펴보기 위하여 소비자의 선택요인으로 중심적 요인인 의료서비스 요인, 주변적 요인인 관광서비스 요인으로 구분하여 어떤 동기에 따라 Trade-off가 발생되는지 살펴보고자 한다. 나아가 이러한 Trade-off 현상을 더욱 세밀히 살펴보기 위하여 소비자들의 지식과 지각된 신체적 위험을 추가적인 동기요인으로 추가하여 연구를 진행하였다. 연구결과 첫째, 환자들의 의료관광 서비스 선택요인은 중증, 경증 환자의 본인 스스로 지각하는 환부의 상태에 따라 중심요인인 의료서비스 요인과 주변요인인 관광서비스 요인의 Trade-off 효과가 있는 것으로 확인되었으며 전체집단 대비 환부에 대해서 심각하고 중요하게 생각하는 집단과의 차이분석 결과에서도 경증/중증 Trade off 차이가 있음을 밝혀내었다. 둘째, 경증환자의 경우 의료관광 서비스 선택요인이 중심요인인 의료서비스 요인보다 주변요인인 관광서비스 요인에 대 한 비중이 더 높을 것이라는 가설은 기각되었다. 또한, 경증환자라 할지라도 본인스스로가 지각하는 환부의 상태가 심각하다고 생각하는 경우에는 중심요인인 의료서비스 요인에 대한 비중이 더 높았다. 중증환자 경우 의료관광 서비스 선택요인에 서 중심요인인 의료서비스 요인에 대한 비중이 더 높았으며, 본인의 상태가 더 심각하고 지각한 중증 집단에서도 덜 심각하다고 지각한 중증 집단에서도 중심요인인 의료서비스 요인의 비중이 주변요인인 관광서비스 요인의 비중보다 더 높았다. 셋째, 경증환자의 경우 지식이 낮은 집단의 경우와 지식이 높은 집단의 경우에서도 중심요인인 의료서비스 요인이 주변요인인 관광서비스 요인보다 비중이 더 높은 것으로 나타났다. 중증환자의 경우도 경증환자의 결과가 유사한 패턴을 보였다. 마지막으로 경증환자의 경우 의료관광 서비스 선택요인에서 지각된 신체적 위험이 낮은 환자라도 중심요인인 의료서비스 요인에 대한 비중이 더 높게 나왔다. 또한 중증환자의 경우 신체적 위험이 높게 지각된 환자, 낮게 지각된 환자 모두의 경우 에도 의료관광 선택 시 주변요인인 관광서비스 요인보다는 중심요인인 의료서비스요인의 비중이 더 높다는 결과가 나타났다. This study focuses on the fact that the choice behavior of medical services will be determined by motivational factors. Therefore, it is a research that re-examines from the point of view of the previous research that the service choice decision process will be performed simply by benefit or attribute. In order to investigate this phenomenon, we examine whether the trade-off occurs according to the motive by dividing the factors of the consumer choice as medical service as the central factor and tourism service factor as the peripheral factor. To further investigate this trade-off phenomenon, we conducted a study to add consumer knowledge and perceived physical risk as additional motivators. The results of this study were as follows: First, the medical and tourism service selection factors of the patients were found to have the trade-off effect of the center factor and the peripheral factors. The results of the difference analysis between the group and the group that thinks about the severity and the importance of the return to the whole group also reveals that there is a trade off difference in the selection factors of the mild and severe patients. Second, the hypothesis that medical tour service selection factors are more likely to be related to peripheral factors than mental factors is rejected. In the case of mild patients, the proportion of central factors was higher when they were considered serious. In the case of severe patients, the percentage of center factor was higher in selection of medical tourism service. The percentage of the central factor was higher in the severe group perceived as more severe and important and in the severe group as less serious and important. Third, in the case of mild patients, the center factor was higher in the knowledge group and the knowledge group than the peripheral group. The results of mild patients also showed a similar pattern in severe patients. Finally, in the case of mild patients, the proportion of the center factor was higher even in patients with low physical risk perceived by the medical tourism service selection factor. In the case of severely ill patients, the percentage of the central factor is higher when the physical risk is perceived.

상주와 영동지역 감나무에서 분리한 탄저병균 Colletotrichum horii의 carbendazim과 thiophanate-methyl에 대한 약제반응

안현정(Hyeon Jeong An),권오경(Oh Gyeong Kwon),나희빈(Hee Been Na),임태헌(Tae Heon Lim),장태현(Taehyun Chang),이동운(Dong Woon Lee) 한국농약과학회 2017 농약과학회지 Vol.21 No.4

Total 282 isolates of Colletotrichum horii were collected from persimmon orchards in Sangju (79 isolates at 2013 and 127 isolates at 2016) and Yeongdong (148 isolates at 2016). MBC (Methyl benzimidazole carbamates) fungicides (carbendazim and thiophanate-methyl) which are registered on persimmon, were evaluated to survey of C. horri growth responses on fungicide-media. All isolates collected in Sangju showed inhibited mycelium growth over 91% on medium with carbendazim (415 μg/ml) however, one isolate of Yeongdong showed 87.6% compared to untreated control. The sensitivity of C. horri isolates from Sangju to thiophanate-methyl (700 μg/ml) was similar between 2013 and 2016. The sensitivity of C. horri against thiophanate-methyle (700 μg/ml) was higher isolated from Yeongdong than Sangju.