• Korean Journal of Heritage: History & Science
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• v.53 no.2
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• pp.242-253
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• 2020

Six ornamental metal quiver fittings were excavated from stone chamber No.1 of the ancient tombs of Jeongchon, Bokam-ri, Naju. The ornamental quiver fittings are metal, but the body of the quiver was made of organic material, so that it corroded and disappeared in the burial environment. The ornamental metal quiver fittings were made in pairs, and decorated one quiver according to the location they were found in and their forms. The ornamental metal quiver fitting can be divided into two types: A band style ornament (帶輪狀金具) which decorates the arrow pouch, and a board style ornament (板狀金具) which decorates the board connecting the waist belt. Two ornamental metal quiver fittings excavated from wooden coffin 2 of stone chamber No.1, were made in the band style, while the ornamental metal quiver fittings from southeast of stone chamber No.1 were identified as two boardstyle ornaments and two band-style ornaments for what was presumed to be belt loops. Material analysis of the ornamental metal quiver fittings shows that they are made of a gilt bronze plate attached to an iron plate, and the surface is marked with a speck of chisel to make lines and patterns. Chemical composition analysis (XRF) established that 24~40wt% Au and 50~93wt% Cu were detected on the gold surface, and it was confirmed that bronze corrosion had taken place on the gilt surface. SEM-EDS analysis of the gold plating layer identified a working line for glossing, and 7~9wt% Hg and an amalgam of gilt layers was detected, confirming the amalgam gilding. CT and FT-IR analysis established that the band style was double-layered with silk fabric under the iron plate, and there was also a lacquer piece underneath. The band-style ornaments have two layers of silk under the iron plate, along with lacquer pieces. Adding the fabric to the arrow pouch increases adhesion and decorative value. It is assumed that the lacquer pieces indicate that the surface of the lacquered arrow pouch had fallen together with the ornaments. On the other hand, the board-style ornaments have a thick layer of organic matter under the iron plate, but this is difficult to identify and appears to be a remnant of the quiver board. The characteristics of these ornamental metal quiver fittings were similar in Baekje, Silla, and Gaya cultures from the late 4th to the late 5th centuries, and enable us to identify the art of ancient gold craftwork at that time.

• Journal of Gifted/Talented Education
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• v.16 no.2
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• pp.167-191
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• 2006

The purpose of this study was to explore logical thinking abilities and metacognitive characteristics by student's giftedness and grade level. Furthermore, this study sought to present the practical basis for the promotion of students' abilities in self-driven learning as well as cognition. Average-ability students(n=199), economically disadvantage gifted students(n=133), and gifted students(n=111), who were sampled by two-step sampling procedures, responded the logical thinking ability test(Cho et al, 2006) and the questionnaire asking self-perception for 'metacognitive knowledge' and 'metacognitive control' abilities(Cho & Han, 2004). As the results, average-ability students showed less logical thinking abilities(in language, mathematics, and space) than gifted students. The logical thinking abilities had affected by giftedness, grade level and these interaction. And gifted students showed higher metacognitive control abilities in planning, monitoring, priority, and strategies of learning than average-ability students. However, there were no significant differences in metacognitive knowledge and metacognitive control abilities between economically disadvantaged gifted students and gifted students.

• Journal of Conservation Science
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• v.34 no.2
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• pp.119-128
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• 2018

This study revealed the material composition and characteristics of 19 glass fragments excavated from stone chamber No. 1 of Jeongchon Tomb in Naju through chemical composition analyses and observations. These characteristics were compared with the characteristics of the glass fragments excavated from No. 3 tomb of Bogam-ri in Naju. The purpose of this study was to identify the characteristics of the ancient glass of the Mahan-Baekje period. The glass fragments excavated from the Jeongchon Tombs can be classified into purplish blue, light-purplish blue, greenish blue, green, and mixture of purple blue and purple, based on their color. These beads were made using a drawn and casting technique. In addition, blue glass fragments were primarily excavated form No. 3 tomb of Bogam-ri. However, red glass fragments were not excavated from either of the tombs. According to chemical composition analyses, soda glass group and potash glass group were common in both the tombs. Additionally, alkali mixed glass group and lead barium glass group were excavated from Jeongchon Tombs and No. 3 tomb of Bogam-ri, respectively. The glass fragments excavated from No. 3 tomb of Bogam-ri have more color variations than those excavated from Jeongchon Tombs.

• The Journal of Internal Korean Medicine
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• v.27 no.1
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• pp.92-101
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• 2006

Objectives : This study was done with intend to investigate whether two oriental medical prescriptions, daecheongryong-tang (DCRT) and prescription A (P-A) significantly affect mucin release from cultured hamster tracheal surface epithelial (HTSE) cells. Methods : Confluent HTSE cells were metabolically radiolabeled with $^3H$-glucosamine for 24 hrs and chased for 30 min in the presence of DCRT or P-A to assess the effect of each agent on $^3H$-mucin release. Possible cytotoxicities of each agent were assessed by measuring lactate dehydrogenase (LDH) release. Also, the effects of DCRT and P-A on contractility of isolated tracheal smooth muscle were investigated. Results were as follows : 1. DCRT significantly inhibited mucin release from cultured HTSE cells, with significant cytotoxicity. 2. P-A significantly increased mucin release from cultured HTSE cells, with significant cytotoxicity. 3. DCRT inhibited Ach-induced contraction of isolated tracheal smooth muscle. 4. P-A also inhibited Ach-induced contraction of isolated tracheal smooth muscle. Conclusion: Results suggest that DCRT and P-A have regulating effects on mucin secretion from goblet cells. Further investigation is needed, because of the value in finding novel agents to this purpose, and these oriental medical prescriptions have potential for this role.

• Journal of Korean Medical classics
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• v.18 no.1 s.28
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• pp.94-120
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• 2005

통과연구진사탁적현존팔종의서(通過硏究陳士鐸的現存八種醫書), 득출이하결론(得出以下結論): 인위석실비록시화타소저청낭서적복원본(認爲石室秘?是華?所著靑囊書的復原本), 이기백전급진사탁적시장중경보충설명완성적서적(而岐伯傳給陳士鐸的是張仲景補充說明完成的書籍). 본초신편재약271종(本草新篇載藥271種), 기술료종기백(記述了從岐伯), 장중경(張仲景), 편작소전수적내용(扁鵲所傳授的內容), 단재범예급서문중(但在範例及序文中), 견불도여편작상관적내용(見不到與扁鵲相關的內容). 변증기문여변증녹기술료기호상동적내용(辨證奇聞與辨證錄記述了幾乎相同的內容), 단무유관병인(但無有關病因), 맥진(脈診), 설진등방면적내용(舌診等方面的內容), 제외감이외(除外感以外), 대잡병병리기호도시이오장오행이론위의거진행료설명(對雜病病理幾乎都是以五臟五行理論爲依據進行了說明). 변증옥함기호미재세간류전(辨證玉函幾乎未在世間流傳), 근류전유일종판본(僅流傳有一種版本), 차파음양(且把陰陽), 허실(虛實), 상하(上下), 진가작위기구별질병적강요(眞假作爲其區別疾病的綱要). 맥결천미거설시귀여구소전(脈訣闡微據說是鬼與區所傳), 인기내용교소미단독간행(因其內容較少未單獨刊行), 근부어변증녹지후보충료변증방면적불족지처(僅符於辨?錄之後補充了辨證方面的不足之處). 거인위외경미언시진사탁종선사소수전적서중최위기리적서적(據認爲外經微言是陳士鐸從先師所授傳的書中最爲奇異的書籍), 시일본집진사탁의학사상지대성적전저(是一本集陳士鐸醫學思想之大成的專著). 동천오지시진사탁적외과전저(洞天奧旨是陳士鐸的外科專著), 재림상극소응용도침지법(在臨床極少應用刀針之法), 이책용료이중제위대보내소법(而策用了以重劑爲大補內消法), 계승료사전급가전적비방(繼承了師傳及家傳的秘方), 이차종합료력대외과저작적내용(而且綜合了曆代外科著作的內容).

• The Journal of Internal Korean Medicine
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• v.27 no.4
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• pp.895-904
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• 2006

Objectives : In the present study, the author intended to investigate whether two oriental medical prescriptions named Socheongryongtang-ga-seoggo (SCTS) and Prescription D (P-D) significantly affect mucin release from cultured hamster tracheal surface epithelial (HTSE) cells. Materials and Methods : Confluent HTSE cells were metabolically radiolabeled with 3H-glucosamine for 24 hrs and chased for 30 min in the presence of SCTS or P-D to assess the effect of each agent on 3H-mucin release. Possible cytotoxicities of each agent were assessed by measuring lactate dehydrogenase (LDH) release. Also, the effects of SCTS and P-D on contractility of isolated tracheal smooth muscle were investigated. Results : SCTS did not affect mucin release from cultured HTSE cells, without cytotoxicity. However, P-D significantly increased mucin release from cultured HTSE cells. with significant cytotoxicity. SCTS inhibited Ach-induced contraction of isolated tracheal smooth muscle. P-D also inhibited Ach-induced contraction of isolated tracheal smooth muscle. Conclusions : The author suggests that the effects of SCTS and P-D with their components should be further investigated and it is valuable to find, from oriental medical prescriptions, novel agents which might regulate mucin secretion from airway goblet cells.

• Asia-Pacific Journal of Business
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• v.9 no.4
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• pp.85-97
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• 2018

This paper investigates factors underlying a decrease in trading values in KOSPI 200 futures/options market on the basis of the current state of the markets. Among the factors that could affect trading values in KOSPI 200 derivatives market, we focus on the market activity of underlying assets as it has an impact on the trading of financial derivatives. Trading value and volatility are designated as market activity and the empirical results confirm that the market activity of the underlying assets is significant in explaining the decrease in trading values in KOSPI 200 futures/options market. To figure out fundamental reasons of the decrease in trading values in this market, we examine mitigation of home bias and decrease in leverage incentives as they are presumed to have influence on KOSPI 200 index market. As the global and local financial environment is time-varying, the degree of home bias and the leverage demand also changes. It implies that institutional change and/or policy effort to promote the trading of KOSPI 200 financial derivatives should be made taking into account the fact that considerable portion of the change in trading values in financial derivatives market depends on the state of the market.

• Journal of Information Technology Services
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• v.20 no.1
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• pp.55-65
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• 2021

For smart defense innovation, the key is to apply state-of-the-art technologies of the Fourth Industrial Revolution to national defense. In order to apply state-of-the-art technology to the defense sector, we need to apply and develop technologies to analyze and respond to uncertain future operational environments. To this end, our military is investing a lot of time and effort. To understand future operational environment analysis and to apply and develop our military, we explored the perspectives of operational environment analysis in major countries and studied specific cases of U.S. troops with systematic analysis functions. The U.S. Army has established a cooperative system to analyze future operational environment under the leadership of the Education Command and operates the organization organically. It also utilizes the collective intelligence of expert groups in various fields by utilizing the MSC, and it is time for the Korean military to take the lead in keeping with the era of transformation. To that end, the organization of the U.S. Education Command should be benchmarked and the Korean Future Operation Environment Analysis Organization should be established and operated. Through this study, we have developed an understanding of the future operational environment analysis system of the U.S. Army and presented a plan to apply the ROK MND.

• Journal of Korean Medical classics
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• v.36 no.3
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• pp.1-13
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• 2023

Objectives :The Shishimilu is a clinical treatise, published in 1687 by Qing period doctor, Chensiduo. The purpose of this study is to report the newly discovered Korean translation to the academic world and discuss its significance. Methods : The newly discovered Korean translated version was examined in detail focusing on bibliography and content items. In addition, the time of introduction of the Shishimilu to Joseon was studied philologically. Results : 1. The time of completion was during the period of the Korean Empire. 2. The original text was faithfully translated. 3. The book was rearranged from the original document to make it easier to apply in clinical practice. 4. Experiences of Joseon medicine were reflected, mainly prescriptions. 5. According to documentary evidence, the Shishimilu was first introduced to Korea only in the late 19th century, and was widely distributed during the Japanese colonial period. Conclusions : he Korean translated version of the Shishimilu was the earliest among known Korean translations of Chinese medical texts, and while faithfully translating the original text, the compilation was rearranged to make it easier to apply clinically. In addition, the experience of Joseon medicine was reflected mostly in prescriptions. It could be determined that if contents of the Shishimilu appear in Korean literature whose writing period is unknown, it can be historically verified to have been written after the late 19th century.

• Korean Journal of Human Ecology
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• v.23 no.1
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• pp.31-46
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• 2014

This study investigated the proceeding patterns of constructive play with lego blocks, and the differences on the quality of constructive play and symbolic play's pretending elements. The subjects were 132 children at child care centers and kindergarten: 64 three-year-olds (36 boy, 28 girl) and 68 five-year-olds (32 boy, 36 girl). The study found three proceeding patterns in the constructive lego play. First, children engaged in constructive and symbolic play simultaneously, or they switched back and forth between symbolic and constructive play. This pattern was termed as "constructive and symbolic play simultaneously or alternatively"(type 3), and it was occurred most frequently. Secondly, children focused only on constructing structures. This pattern was termed as "constructive play only"(type 1), Thirdly, children engaged in symbolic play only after they completed building some structures. This pattern was named "symbolic play after constructive play"(type 2). The findings also indicated that children who were categorized as type 1 and 2 showed higher quality of constructive play and longer duration in play than children as type 3. Five-year-old children sustained play longer and showed higher quality in terms of elaboration, imagination, and variety (number of blocks, shape of blocks). Furthermore, children as type 3 showed a higher level of imaginative play than children as type 1 and 2, especially in terms of role, objet, and context of projection.