고려 엉겅퀴(Cirsium setidens Nakai) 잎 조직을 이용한 callus 배양 및 항산화 활성 검증

박정훈,심예지,박기임,이인순,문혜연 대구대학교 특수교육재활과학연구소 2010 産業技術硏究 Vol.21 No.1

We described the effects of antioxidant activity on the extracts of tissue and callus formation by Cirsium setidens Nakai. The callus culture were induced from leaf tissue of Cirsium setidens in both MS and B5 medium with IAA or/and kinetin (0∼5.0 ㎎/ℓ). As medium for callus culture induced from Cirsium setidens, B5 medium showed better condition than MS media. MS medium brought to decrease callus differentiation after formation, on the other hand B5 medium induced to accelerate callus differentiation. Among phytohormones is required 0.5 ㎎/ℓ of IAA and between 2.0 ㎎/ℓ and 1.0 ㎎/ℓ of Kinetin for formation of callus. In order to extract functional material from natural leaf and callus tissue of Cirsium setidens used distilled water and 75% ethanol as solvent and those extract used to determine antioxidant activity as alpha-diphenyl-2-picryl-hydrozyl (DPPH) radicals scavenging effect and TBA(thiobarbituric acid) activity. In result, the effect of DPPH and TBA had high activity more natural leaf extract than callus tissue and 75% ethanol was solvent better than distilled water. The 75% ethanol extract of natural leaf showed an excellent antioxidant activity because that particularly had highest concentration of vitamin C and total phenol among those extracts

人文主義時代의 數學敎育이 近世數學敎育에 미친 影響

鄭址鎬 동국대학교 자연과학연구소 1991 자연과학연구 논문집 Vol.11 No.-

人文主義時代의 敎育은 人間性의 解放을 목적으로 했기 때문에 中世의 因?的인 神學과 Schola學을 버리고, 古代 그리이스, 로마의 古典을 主眼으로 했다. 따라서 古典이 아닌 다른 學問 즉, 數學, 歷史, 地理, 科學 등은 輕視되었으며, 數學은 다만 形式理論의 演習科目에 不過했다. 그러나 15世紀의 商業上의 革命과 科學發展은 數學 및 天文學의 發達을 促進시켰다. 이와 같은 狀態下에서 從來의 古典만에 의한 非實用的인 數學敎育으로서는 發展하는 現實世界에 對處할 수 없게 되었으며, Euclid를 批判할 程度의 社會?圍氣로 變?했다. 實로 人文主義時代의 유럽의 數學敎育은 中世暗黑期의 沈?속에서 벗어나 東洋의 數學을 받아들이고 消火시켰을 뿐만 아니라 非實用的인 數學敎育을 脫皮해서 實用的인 數學敎育을 定着시킴으로서 近世의 實存主義의 發展에 많은 影響을 미쳤다. Because the objects of Mathematics Education in the Humanistic Ages was aimed at the classics the other educations i.e. mathematics, geography, history and science etc., were made light of and the mathematics was no more than a training subject. But the industrial revolution and the development of science in particular helped progress of mathematics and astronomy. Under these circumstance unpractical mathematics education as before could not cope with the circumstances of the real world on those days and some one criticized even the Euclidean geometry. European mathematics education in Renaissance Ages was gotten out of inactivity of Dark Ages and accepted the Oriental mathematics education. And such european mathematics education was helped to convert the unpractical mathematics education to the practical ones.

만성 신장 질환인 2마리의 개에 있어서 외인성 크레아티닌 청소율 검사에 의한 사구체 여과율 측정 예

강지훈, 강건아, 김유정, 나기정, 양만표 충북대학교 동물의학연구소 2006 Journal of Biomedical and Translational Research Vol.7 No.1

본문참조

아라비아 수학이 근세 수학 발전에 미친 영향

鄭址鎬 단국대학교 통계문제연구소 1984 數學 및 統計硏究 Vol.12 No.-

Islam took a great interest in the utility sciences such as mathematics and astronomy as it needed them for the religious reasons. It needed geometry to determine the direction toward Mecca, its holiest place; arithmetic and algebra to settle the dates of the festivals and to calculate the accounts for the inheritance; astronomy to settle the dates of Ramadan and other festivals. Islam expanded and developed mathematics and sciences which it needed at first for the religious reasons to the benefit of all mankind. This thesis focuses upon the golden age of Islamic culture between 7th to 13th century, the age in which Islam came to possess the spirit of discovery and learning that opened the Islamic Renaissance and provided, in turn, Europeans with the setting for the Renaissance in 14th century. While Europe was still in the midst of the dark as age of the feudal society based upon the agricultural economy and its mathematics was barey alive with the efforts of a few scholars in churches, the Arabs played the important role of bridge between civilizations of the ancient and modern times. In the history of mathematics, the Arabian mathematics formed the orthodox, not collateral, school uniting into one the Indo-Arab and the Greco-Arab mathematics. The Islam scholars made a great contribution toward the development of civilization with their advanced the development of civilization with their advanced knowledge of algebra, arithmetic and trigonometry. the Islam mathematicians demonstrated the value of numerals by using arithmetic in the every day life. They replaced the cumbersome Roman numerals with the convenient Arabic numerals. They used Algebraic methods to solve the geometric problems and vice versa. They proved the correlation between these two branches of mathematics and established the foundation of analytic geometry. This thesis examines the historical background against which Islam united and developed the Indian and Greek mathematics; the reason why the Arabic numerals replaced the Roman numerals in the whole world; and the influence of the Arabic mathematics upon the development of the modern mathematics.

高麗·朝鮮時代의 數學과 社會

鄭址鎬 동국대학교 1985 論文集 Vol.24 No.-

Though the tradition of Korean mathematics since the ancient time up to the "Enlightenment Period" in the late 19th century had been under the influence of the Chinese mathematics, it strove to develop its own independent of Chinese. However, the fact that it couldn't succeed to form the independent Korean mathematics in spite of many chances under the reign of Kings Sejong, Youngjo, and Joungjo was mainly due to the use of chinese characters by Koreans. Han-gul(Korean characters) invented by King Sejong had not been used widely as it was called and despised Un-mun and Koreans still used Chinese characters as the only "true letters"(Jin suh). The correlation between characters and culture was such that, if Koreans used Han-gul as their official letters, we may have different picture of Koran mathematics. It is quite interesting to note that the mathematics in the "Enlightenment Period" changed rather smoothly into the Western mathematics at time when Han-gul was used officially with Chinese characters. In Koryo, the mathematics existed only as a part of the confucian refinement, not as the object of sincere study. the mathematics in Koryo inherited that of the Unified Shilla without any remarkable development of its own, and the mathematicians were the Inner Officials isolated from the outside world who maintained their positions as specialists amid the turbulence of political changes. They formed a kind of Guild, their posts becoming patrimony. the mathematics in Koryo is significant in that they paved the way for that of Chosun through a few books of mathematics such as "Sanhak-Kyemong", "Yangwi-Sanpup" and "Sangmyung-Sanpup". King Sejong was quite phenomenal in his policy of promotion of matematics. King himself was deeply interested in the study, createing an atmosphere in which all the high ranking officials and scholars highly valued mathematics. The sudden development of mathematic culture was mainly due to the personality and capacity of King who took any one with the mathematic talent into government service regardless of his birth and against the strong opposition of the conservative officials. However, King's view of mathematics never resulted in the true development of mathematics per se and he used it only as an official technique in the tradition way. Korean mathematics in King Sejong's reign was based upon both the natural philosophy in China and the unique geo-poltical reality of Korean peninsula. the reason why the mathematic culture failed to develop continually against those social background was that the mathematicians were not allowed to play the vital role in that culture, they being only the instrument for the presonality or politics of the King. While the learned scholar class sometimes played the important role for the development of the mathematic culture, they often as not became an adamant barrier to it. As the society in Chosun needed the function of mathematics acutely, the mathematicians formed the settled class called Jung-in(Middle-Man). Jung-in was a unique class in Chosun and we can't find its equivalent in china or Japan. these Jung-in mathematician officials lacked tendency to publish their study, since their society was strictly exclusive and their knowledge was very limited. though they were relatively low class, these mathematicians played very important role in Chosun society. In "Sil-Hak(the Practical Learning) period" which began in the late 16th century, especially in the reigns of Kings Youngjo and Jungjo, which was called the Renaissance of Chosun, the ambitious policy for the development of science and technology called for the rapid increase of the number of such technocrats as mathematics, astronomy and medicine. Amid these social changes, the Jung-in mathematicians inevitably became quite ambitious and proud. they tried to explore deeply into mathematics per se beyond the narrow limit of knowledge required for their office. Thus, in this period the mathematics developed rapidly, undergoing very important changes. The characteristic features of the mathematics in this period were: Jung-in mathematicians' active study an publication, the mathematic studies by the renowned scholars of Sil-Hak, joint works by these two classes, their approach to the Western mathematics and their efforts to develop Korean mathematics. Toward the "Enlightenment Period" in the late 19th century, the Western mathematics experienced great difficulty to take its roots in the Peninsula which had been under the strong influence of confucian ideology and traditional Korean mathematic system. However, with King Kojong's ordinance in 1895, the traditional Korean mathematics influenced by Chinese disappeared from the history of Korean mathematics, as the school system was changed into the Western style and the Western mathematics was adopted as the only mathematics to be taught at the schools of various levels. Thus the "Enlightenment Period" is the period in which Korean mathematics shifted from Chinese into European.

중국 연변 조선족자치주 성인과 한국 구리지역 성인의 식생활 양식 비교

이선희,백희영,김정순,문용,정효지 한국식생활문화학회 2001 韓國食生活文化學會誌 Vol.16 No.4

This study was conducted to investigate dietary patterns and assimilation of dietary culture of Korean descendants in Yanbian, China compared to Korean. A dietary survey was conducted using one 24-hour recall method from 730 adults over 30 years of age in Yanbian, China and 695 adults over 25 years of age in Kuri, Korea. The average number of food items consumed per day was 14 in Yanbian and 20 in Kuri and there was a significant difference between the two regions(p<0.001). The foods consumed most frequently were rice, salt, the M.S.G. in Yanbian and rice, green onion and garlic in Kuri. The foods consumed most by amount were rice, cucumber, Soju in Yanbian and rice, Kimchi and grape in Kuri. The average number of dishes consumed per day was 6.4 in Yanbian, 9.4 in Kuri and the difference between the two regions was significant(p<0.001). Total number of dishes appeared in the survey was 253 in Yanbian and 494 in Kuri. The dishes consumed most frequently were cooked-rice, beverages, Kimchi, stir-fried eggplant in Yanbian and cooked-rice, Kimchi, coffee, soybean paste stew, in Kuri. The dish groups appeared most frequently were rice, stir-fried foods, vegetables and Kimchi in Yanbian and rice, Kimchi, beverages and fruits in Kuri. Male subjects in Yanbian Consumed alcohol frequently while adults in Kuri consumed coffee more frequently than Yanbian. The major meal patterns were rice+side dish, rice+soup, rice+side dish+Kimchi in Yanbian and rice+soup+side dish+Kimchi, rice+side dish+Kimchi, rice+soup+Kimchi in Kuri. Stir-fried foods, which were consumed 46.6% of all the meals, were dominant side dish in Yanbian, but stir-fried food, seasoned vegetables and grilled food appeared aver 10% in Kuri. There results show that variety of diet of Korean-Chinese in Yanbian was lower than Kuri. Korean-Chinese tend to keep traditional Korean dietary patterns of consuming rice as staple but were adapted to Chinese dietary patterns of consuming stir-fried side dishes. Efforts should be directed toward preserving Korean traditional patterns of dietary culture among Korean-Chinese population.

퍼지 제어기의 함수 구성 능력에 관한 연구

이지홍,오영석,정병현 金烏工科大學校 1991 論文集 Vol.12 No.-

Fuzzy controller has been successfully applied to many cases to which conventional control algorithms are difficult to be applied. This is due to the uncertainty handling capability of fuzzy controller. In spite of the special internal processing mechanisms, the fuzzy controller is basically a crisp mapping from n dimensional space to m dimensional space; n and m are the numbers of output and input variable of the controlled system, respectively. The approximating capability the fuzzy controller with a given mapping, is studied in this paper.

CRM 활동이 관계편익, 관계몰입 및 행동의도에 미치는 영향 : 미용산업을 중심으로

성현선,정지선 동양대학교 2010 동양대학교 논문집 Vol.14 No.1

The study examines the influences of CRM activites to the relational benefits, relational commitment and behavioral intention. First of all, CRM activities were classified into 3 categories using factor analysis: continuous contact, discriminated management, typical compensation. Or Relational benefits were classified into 3 categories: social benefits, customization benefits, economic benefits. To analyze the data, with SPSS program (Ver.12.0) and AMOS program (Ver.5.5). The result of fators analysis, only discriminated management have a positive effect with continuous contact, discriminated management and typical compensation. Second, continuous contact, discriminated management and typical compensation have a positive with relational commitment. Furthermore all benefits have a positive with behavioral intention.

근세 서양복식에 나타난 두식에 관한 연구

이순홍,이지숙,김정진 誠信女子大學校 生活文化硏究所 2003 生活文化硏究 Vol.17 No.-

The purpose of this study is to find the trend of European headdresses during the period of the 16^th to the 18^th century. The fashion of the headdress, which generally means hairstyle and hat, constitutes a part of the whole fashion style of a time. The fashion style itself represents an aspect of the society at the time. The headdress in the 16^th century, which was also called Renaissance period, had begun to show diversified hairstyles and hats, of men's and women's reflecting the liberal trend of the society of the period. Short hairs and beret represent men's headdress of the period; dyed hairs and various hoods represent women's headdress. The headdress in the 17^th century, Baroque period, showed somewhat exaggerated, complicated and sensitive tendency as a reflection of the trend of the period that tried to express things more artistic ways. Wigs and hats took important position in men's fashion; Fontages hairstyle and tricorn hat partly represent women's headdress. The headdress in the 18^th century, Rococo period, had partly showed the culmination of the fashion in its history in the diversity of style and pursue of beauty. The fashion in the period could almost be called the art itself. Men's wigs evolved more practical style while their hats more decorative; women's headdress became extremely beautiful decorated by corsages and plaits.

복강경하 질식 자궁적출술 30예의 임상적 고찰 : A Review of 30 Cases

윤병일,김소정,정두용,김수녕,손인숙,이지영 건국대학교 의과학연구소 2003 건국의과학학술지 Vol.13 No.-

Hysterectomy is the most common gynecologic operation. Traditionally, hysterectomy was performed either through an abdominal approach or through a vaginal approach. Recently, laparoscopic hysterectomy is quite often tried. To evaluate the effectiveness and value of LA VH(Laparoscopy Assisted Vaginal Hysterectomy), and to evaluate the possibility whether to rep;ace abdominal hysterectomy to LAVH, we analyzed our clinical cases. This clinical study is a retrospective review of 30 cases of LAVH from May 2002 to February 2003 at the department of Obstetrics and Gynecology, Chung- Ju hospital, Konkuk University. We evaluated age, parity, previous abdominal operations, indications of hysterectomy, combined operation, operating time, hemoglobin change, weight of uterus, hospital stay and postoperativeThe average operating time was 146 ± 42 minutes, the uterine weight was 239 ± 126 grams, and the mean postoperative hemoglobin loss was 1.7 ± 1.4 g/dl. The most common pathologic finding was myoma uteri(37%), and the second most pathologic finding was adenomyosis(20%) and myoma uteri with adenomyosis (20%). Serious complications were not appeared. LAVH provides a shorter hospital stay, quicker recovery, and the acceptable complication rate except incerased operating time than abdominal hysterectomy. This study suggests that LAVH appears more useful than TAH(Total Abdominal Hysterectomy) and could replace abdominal hysterectomy.