일제강점기 박람회 건축을 통해 본 건축양식의 상징성

강상훈,Kang, Sang-Hoon 한국건축역사학회 2006 건축역사연구 Vol.15 No.3

This research examines symbolic meanings of architectural style of Japanese ruling era of Korea through analysis of Expo buildings. Expo buidings of Joseon Product Evaluation Expo(1915), Joseon Expo(1929), and Joseon Grand Expo(1940) are chosen as subjects of this research. Expos held in Korea since 1945 were creatures of colonial reign and their objectives are advertising the advancement of Japan. New and latest architectural styles of Western countries were used as a symbol of advancement in non-western countries. Renaissance style and Secession style in Joseon Product Evaluation Expo and Modernism style in Joseon Expo were introduced as architectural styles that symbolize advancement. On the contrary, the traditional architectural style of Joseon Dynasty was distorted as symbol of backwardness. Latest Western Architectural Styles were used elaborately and Intentionally to symbolize advancement and industrialization by Japanese ruling power and companies. Specially, Modernism style operating as 'symbol of advancement' is characteristic of non-western society in attempt to proceed Modernization through Westernization. Also, it can be suggested that architectures in Modernism style are used in ways to symbolize the advancement of the colonial reign authorities within the colonial society.

하악 제3대구치 발치를 위한 예방적 항생제의 효용성

강상훈,김정인,박원서,이충국,이상휘,Kang, Sang-Hoon,Kim, Jung-In,Park, Won-Se,Yi, Choong-Kook,Lee, Sang-Hwy 대한구강악안면외과학회 2008 대한구강악안면외과학회지 Vol.34 No.3

This study analyzed the incidence of wound infection after the operation of mandibular third molar extraction in relation with antibiotic prophylaxis with the object of young and healthy patients. The study object was 1,177 mandibular third molars of 850 men of 20 to 25 years old without any specific systemic disease. Three methods of preventive antibiotic medication were selected according to the preventive antibiotic medication previously reported; three experimental groups were selected based on them, and the antibiotic used was amoxicillin($^{(R)}Kymoxin$, Yuhanyanghaeng, Seoul). The group 1 includes the patients that took the antibiotic orally before the operation(one hour earlier, 500mg) and for three days after the operation(250mg per time, three times/day), the group 2 is the ones that took the same antibiotic orally only once about one hour before the operation(500mg), and the group 3 did not take any antibiotics before and after the operation. And to compare the difficulties and the degrees of extraction during operations which can be possibly related to the wound infection after the operations, the mandibular third molars' impacted depths and extraction methods were investigated as well. To check if the wound was infected, observations with an internal of one week were performed twice after the operation, and the meaningfulness of the infection incidence was verified through Chi-square test using SPSS program(SPSS Inc., IL, USA). There was no statistically significant difference between the antibiotic medication methods and the wound infection incidence after the operation among the experimental groups. As examining the relations between the mandibular third molar operation methods and the wound infection incidence after the operation, there existed a statistically meaningful difference in the infection incidence according to the operation methods(p=0.020). And there was no statistically significant difference in the wound infection incidence according to the impacted depth of the mandibular third molar. Therefore, it is thought that there exists little necessity of prophylatic antibiotics medication when extracting the mandibular third molar of young and healthy men without any systemic disease in general; however, in case when it is expected that the possibility of infection will be high or the wound on the tissue will be severe, it is sure that the prophylactic antibiotics medication will be necessary.

RI 폐기물 내 방사성요오드 분석을 위한 분리 및 회수

강상훈,한선호,이흥래,지광용,이인구,Kang, Sang-Hoon,Han, Sun-Ho,Lee, Heung-N.,Jee, Kwang-Yong,Lee, In-Koo 한국방사성폐기물학회 2007 방사성폐기물학회지 Vol.5 No.4

Various kinds of RI wastes are discharged from licensed organizations of radioisotopes les such as hospitals and clinic organizations, educational organizations, research institutions, and public organizations. Radioiodines such as $^{125}I\;and\;^{131}I$ are radioisotopes mainly used in nuclear medicine and industry. A method for the determination of radioiodines in RI wastes has been applied to measure low level activity using acid decomposition method and HPGe gamma ray spectrometer. Prior to analysis of real samples, $^{131}I$ reference solution and 10 g of yellow tissue paper was added to flask in mantle and was heated in 100 mL of 0.4 N $K_2Cr_2O_7$ and 100 mL of 9 M $H_2SO_4$, and then distilled after adding 10 mL of 30% $H_2PO_3$ and 1 mL of 30% $H_2O_2$. The condensed iodine by circulator was extracted into $CCl_4$, then back-extracted into the aqueous phase with 10 mL of 5% $K_2SO_2$ solution. Finally, $^{131}I$ was measured at 364.48 keV using HPGe gamma ray spectrometer after precipitation and filtration. Chemical yield of three steps such as acid decomposition process, chemical separation process, and precipitation and filtration process was more han 94% respectively, MDA(Minimum Detectable Activity) of $^{131}I$ at this analytical condition was 0.6 Bq/g.

악교정 수술시 술후 환자의 증상변화와 항생제 투여와의 관계

강상훈,유재하,이충국,Kang, Sang-Hoon,Yoo, Jae-Ha,Yi, Choong-Kook 대한악안면성형재건외과학회 2007 Maxillofacial Plastic Reconstructive Surgery Vol.29 No.4

This study compared and evaluated the variation of patients' symptoms depending on whether or not antibiotics had been used in the recovery period after the orthognathic surgery. 28 patients, with no particular medical history, were divided into two groups on the basis of whether antibiotics had been applied after the orthognathic surgery. All patients had been operated on maxilla and mandible simultaneously and were investigated with any symptom changes within the postoperative 4 days. Among the symptoms that could follow after the orthognathic surgery, 6 symptoms were checked every 24 hours on 5 points basis. Phases of each symptom improvements were checked and analyzed by ANOVA statistical method. Aspects of symptom changes according to application of antibiotics showed no statistical significance. Symptoms, except for swelling, showed continuous improvements after the surgery. Swelling increased until postoperative $2^{nd}\;day$, and then started to decrease. This study shows that post-surgical use of antibiotics has no significance provided that post-surgical infection had not occurred.

자초(紫草)가 HaCaT 세포의 사이토카인 유전자 발현에 미치는 영향

강상훈,김경준,Kang, Sang-Hoon,Kim, Gyung-Jun 대한한방안이비인후피부과학회 2013 한방안이비인후피부과학회지 Vol.26 No.1

Objective : Propionibacterium acnes (P. acnes) is a major pathogenic bacteria for acne vulgaris. This study was performed to evaluate the effects of Lithospermum erythrorhizon extracts on the inflammatory cytokines gene expression by P. acnes in human keratinocytes, HaCaT cell line. Methods : Anti-bacterial activity and cytotoxicity of LE extracts was analyzed by agar plate culture and XTT assay. The cytokines gene expressions were assessed by real time RT-PCR for IL-8, MCP-1 and TNF-${\alpha}$. During the cell culture and treatments, amounts of secreted TNF-${\alpha}$ were measured by ELISA. Translocation of transcription factor NF-${\kappa}B$ from cytoplasm into nucleus was observed by immunocytochemistry and confocal microscopy. Results : There were no anti-bacterial effects and cytotoxicity as high as $1,000{\mu}g/ml$ of LE extracts in XTT assay. Transcription levels of inflammatory cytokines, IL-8, MCP-1 and TNF-${\alpha}$ were increased by P. acnes in HaCaT. LE extracts decreased the upregulated gene transcription levels. However, amounts of secreted TNF-${\alpha}$ were similar in HaCaT cells with P. acnes and LE extracts. Translocation of NF-${\kappa}B$ into nucleus by P. acnes was significantly inhibited by LE extracts. Conclusions : From the results of this study, LE extracts have anti-inflammatory effects on HaCaT cells by P. acnes that decreased the mRNA expressions of IL-8, MCP-1 and TNF-${\alpha}$. This anti-inflammatory effects of LE extracts could provide the potential of therapeutic substance for acne vulgaris.

악교정 수술후 항생제 투여의 효용성 : 술후 항생제 투여 여부에 따른 창상감염 빈도

강상훈,유재하,이충국,Kang, Sang-Hoon,Yoo, Jae-Ha,Yi, Choong-Kook 대한악안면성형재건외과학회 2007 Maxillofacial Plastic Reconstructive Surgery Vol.29 No.3

This study observed the frequency of post-surgical infection according to post-surgical application of antibiotics in order to evaluate the benefits of the use of antibiotics after the orthognathic surgery. 349 patients without any specific medical history were divided into two groups depending on whether or not antibiotics had been applied after the surgery. The mean(SD) age of the 349 patients was 22.7(${\pm}4.25$) with a male-female ratio of 168:181. 226 patients received only 1.0g of a third-generation cephalosporin(Cefpiramide) intravenously 30 minutes prior to the surgery. Likewise, 123 patients received 1.0g of Cefpiramide 30 minutes prior to the surgery and twice daily longer than the third day after surgery. The mean(SD) duration of administration was 4.75(${\pm}0.89$) day. The patients were evaluated after surgery for any postoperative infections according to the criteria: purulent drainage from a wound, spontaneous wound dehiscence accompanied by swelling, pain, and fever around the wound. However, 14 patients of 226 patients received antibiotics only prior to the surgery developed postoperative infection, 2 patients of 123 patients received antibiotics longer than postoperative 3 days developed postoperative infection. Postoperative infection frequency showed no significant difference between the two groups(p=0.094). Also, bi-maxillary operation and mandibular operation alone, showed no significant difference in the frequency of post-surgical infection when antibiotics had been continuously used after the surgery. From this study, postoperative use of antibiotics seems to be unnecessary with view of the little significance of the factors that could affect the wound infection.

KOSPI 200 현물시장-선물시장 사이의 변동성 전이: VECM-DCC-GARCH 모형

강상훈 ( Sang Hoon Kang ),윤성민 ( Seong Min Yoon ) 한국파생상품학회(구 한국선물학회) 2011 선물연구 Vol.19 No.3

이 논문은 KOSPI 200 현물시장과 선물시장 사이의 가격 발견, 변동성 전이, 비대칭적 변동성 전이 효과에 대해 VECM-DCC-GARCH 모형을 이용하여 연구하였다. 수익률의 경우, 선물시장에서 현물시장으로의 정보전이가 유의하게 존재하는 것으로 나타났다. 이러한 결과는 KOSPI 200 선물시장이 현물시장의 가격 발견에 중요한 역할을 한다는 것을 의미한다. 변동성의 경우, 현물시장과 현물시장 사이에서 양방향으로의 정보전이가 강하게 존재하는 것으로 나타났다. 이러한 결과는 현물시장에서 유발된 변동성이 선물시장의 변동성에 영향을 미치지만, 반대로 선물시장에서 유발된 변동성도 현물시장의 변동성에 영향을 미친다는 것을 의미한다. 그리고 두 시장 사이의 변동성 전이는 좋은 뉴스와 나쁜 뉴스의 효과가 다른 비대칭적 특성을 가지는 것으로 나타났다. This paper investigates the price discovery, volatility spillover, and asymmetric volatility spillover effects between the KOSPI 200 market and its futures contracts market. The investigation was performed using the VECM-DCC-GARCH approach. In the case of returns, we found a significant unidirectional information flow from the futures market to the spot market; this implies that the KOSPI 200 futures market plays an important role on the price discovery in the spot market. In addition, we found a strong bi-directional casualty involving the volatility interaction between the spot and futures markets; this implies that market volatility originating in the spot market will influence the volatility of the futures market and vice versa. We also found strong asymmetric volatility spillover effects between the two markets.

하악골 골절에 대한 수술 시 예방적 항생제 사용과 술후 항생제 투여의 효율성

강상훈(Sang-Hoon Kang),최영수(Young-Su Choi),변인영(In-Young Byun),김문기(Moon-Key Kim) 대한구강악안면외과학회 2009 대한구강악안면외과학회지 Vol.35 No.1

Purpose: This study compared the frequency of postoperative infections in patients for a closed mandibular fracture with that without the postoperative antibiotic prophylaxis. Patients and Methods: 48 patients without any specific medical history were divided into two groups depending on whether or not antibiotics had been applied after the surgery. The 24 patients in group 1 received only a second-generation cephalosporin (Cefotetan) intravenously from admission to immediate after the surgery. Likewise, 24 patients in group 2 received 1.0g of Cefotetan􀋓 twice daily longer than the third day after surgery. The mean (SD) duration of antibiotics administration after surgery was 6.9 (±3.56). The patients were evaluated after surgery for any postoperative infections according to the criteria: purulent drainage from a wound, spontaneous wound dehiscence accompanied by swelling, pain, and fever around the wound. Results: Postoperative infections were encountered in 2 out of 24 patients in group 1, who received antibiotic medication until shortly after surgery, and in 3 out of the 24 patients in group 2, in whom the medication was continued even after the surgery. There was no sig nificant difference in the incidence of postoperative infections between the two groups. Conclusion: From this study, postoperative use of antibiotics seems to be unnecessary with view of the little significance of the factors that could affect the wound infection.

빅데이터 분석을 활용한 해양쓰레기 유형 도출 : 코로나19 발생 전 그리고 후 비교

강상훈(Sang-Hoon Kang),박득희(Deuk-Hee Park) 한국자료분석학회 2022 Journal of the Korean Data Analysis Society Vol.24 No.1

해양쓰레기에 대한 관심이 증가하고 있다. 다양한 해양쓰레기와 관련된 연구가 수행되었지만, 빅데이터를 활용하여 해양쓰레기를 조사한 연구는 부족한 실정이다. 이 연구는 해안지역에서 관광객 행동과 연관된 해양쓰레기 유형을 빅데이터 분석기법을 적용해서 도출했다. 또한, 이 연구는 코로나19 발생 이전과 코로나19 발생 이후의 해양쓰레기 유형을 비교했다. 연구 결과는 노드와 링크 수, 그리고 밀도 값에서 코로나19 발생 이전과 코로나19 발생 이후의 해양쓰레기 연결망 사이에 차이가 있음을 보여줬다. 해양생태관광, 플라스틱, 그리고 해양관광자원이 코로나19 발생 이전 연결망에서 핵심어였다면, 코로나19 발생 이후 연결망에서는 해양여가, 해양생태관광, 그리고 플라스틱이 주요한 핵심어였다. 코로나19 발생 이전에도 해양생태관광에 대한 사람들의 관심이 높았지만, 코로나19 발생 이후에는 해양생태관광에 대한 관심은 더욱 높아졌다. 특히 주목할 점은, 코로나19 발생 이전 해양쓰레기 연결망에서는 재활용품이나 생활쓰레기 같은 일반적으로 인식되고 있는 해양쓰레기와 관련된 키워드가 포함되어 있었지만, 코로나19 발생 이후에는 낚시, 해수욕장, 여름철과 같은 해양자원을 활용한 관광·여가·휴양 활동과 관련되는 키워드가 도출되었다. 코로나19 이전 연결망과 코로나19 이후 연결망 간에 관련성은 낮았지만, 이러한 결과는 통계적으로 유의했다. 본 연구의 시사점을 결론에서 제시했다. There are growing concerns about marine debris. While marine debris research has been widely studied across the world, little attention has been made to examine marine debris issues using big-data. This study identified the types of marine debris associated with tourist behavior in coastal areas. This study also compared the types of marine debris between before and after COVID-19 outbreak. Results show differences in the number of nodes and links as well as density score between the two networks. Marine eco-tourism, plastic, and marine tourism resources were major actors in the before COVID-19 outbreak network, whereas marine leisure, marine eco-tourism, and plastic were major actors in the after COVID-19 outbreak network. Notably, marine debris such as recyclables and household waste were included in the before COVID-19 outbreak network. However, tourism/leisure/recreation related keywords such as fishing, beach, summer season were drawn in the after COVID-19 outbreak network. Two different networks, meaning the before COVID-19 outbreak network and the after COVID-19 outbreak network, were lowly related, but the relation was statistically significant. Implications of this study were discussed in conclusion.

국내육성 온주밀감 신품종에 대한 플라보노이드 조성 및 함량 비교

강상훈(Sang Hun Kang),박영철(Young Chul Park),진석천(Seok Cheon Jin),강종훈(Jong Hoon Kang),이창훈(Chang Hoon Lee),김진영(Jin Young Kim),현원화(Won Hwa Hyeon) 한국원예학회 2014 한국원예학회 학술발표요지 Vol.2014 No.10