아동의 태권도 수련참여에 따른 생활태도 변화에 대한 모형적합성 검증

박종국,이선장,유재원 한국스포츠리서치 2003 한국 스포츠 리서치 Vol.20 No.1

This research is about the effect of Taekwondo training on the children's behavior. The subjects of this study are the elementary school students who are now engaged in the Taekwondo exercise course. And they all are in the school grade of 3rd, 4th, and 5th, possessed of over 1pum in Taekwondo. The parents of those students are the subject of the survey. 500 papers were distributed and 467 of those were used for the analysis. The collected data were analyzed to test the causal relationships using prequency Analysis, descriptive statistics, correlation analysis of SPSS/PC+ 8.0 version and LISREL 8.12 for windows From the above analysis, the following conclusions were obtained: First, by way of Taekwondo training, mental attitude of the children improved, elevated the children's flexibility to the society and their living attitude. Second, Taekwondo training the relation among the training period and the change of flexibility to the society, adaption to the society, influence on the living attitude. Third, there exist causal relationships among Taekwondo training period and their change of flexibility to the society, adaption to the society, influence on the living attitude. This causal model fits well with empirical data.

사후적 이윤율 규제에 대한 이론적 평가

김재철,유병국 한국경영과학회 1989 韓國經營科學會誌 Vol.14 No.2

The present paper analyzes performance of a variable of rate-of-return regulation called the ex-post adjustment regulation put in effect in the Korean petroleum refinery sector. Unlike the traditional rate-of-return regulation on a monopoly, the regulation is first for the oligopolistic industry as a whole and second of the ex post nature. Under the regulation, at the end of each year, each firm is responsible to pay allowed profits. It is shown that if the excess profits are completely collected (including the interests), the social optimum can realized. When only a portion of the excess profits can be collected, the regulation generally increases consumer surplus by making the firms more competitive. Each individual firm's production under the regulation depends on whether the firm's output is regarded as a strategic substitute or complement of other firm's output.

비감염성 설사

정환국,유재영 대한감염학회 1978 감염 Vol.10 No.1

顎骨 및 齒牙의 實驗的外傷後 흰쥐 三叉神經節의 形態學的反應에 關한 硏究

金明國,劉鍾德,黃聖明,高在丞 최신의학사 1983 最新醫學 Vol.26 No.6

중합효소연쇄반응법을 이용한 급성 치수 및 치근단 질환의 병원성 세균의 동정

김지훈,유소영,임선아,국중기,임상수,박슬희,황호길 大韓齒科保存學會 2003 Restorative Dentistry & Endodontics Vol.28 No.2

The purpose of this study was to investigate the frequency of 7 putative pathogens in endodontic infections. The specimens were collected from infected pulpal tissue of patients who were referred for root canal treatment to the department of conservative dentisty, Chosun University. Samples were collected aseptically using a barbed broach and a paper point. The cut barbed broaches and paper points were transferred to an eppendorf tube containing 500 ml of 1 X PBS. DNAs were extracted from the samples by direct DNA extraction method using lysis buffer (0.5% EDTA, 1% Triton X-100). Identification of 7 putative pathogens was performed by PCR based on 16S rDNA. The target species were as follows: Porphyromonas endodontalis, Porphyromonas gingivalis, Prevotella intermedia, Prevotella nigrescens, Bacteroides forsythus, Actinobacillus actinomycetemcomitans, and Treponema denticola. Our data revealed that the prevalence of P.endodontalis was found in 88.6% (39 / 54), P.gingivalis 52.3% (23 / 44), P.nigrescens 18.2%(8 / 44), P.intermedia 15.9% (7 / 44), B.forsythus 18.2% (8 / 44), A.actinomycetemcomitans 2.3% (1 / 44), T.denticola 25% (11 / 44) of the samples. The high prevalence of P. endodontalis and P.gingivalis suggests that they may play an important role in the etiology of endodontic infections.

M_(7)C₃형 크롬탄화물의 경도에 미치는 고용원소(V, Mo, Mn)의 영향

백응률,유국종,정재영,안상호 영남대학교 재료기술연구소 2000 재료기술연구 Vol.1 No.1

This study makes an investigation into the effect of dissolved alloy element (V,Mo,Mn) on hardness of the M_(7)C₃ type chromium carbide. Dis solved alloy element (V,Mo,Mn) content in M_(7)C₃ type chromium carbide was analyzed by EDS and micro- hardness of the M_(7)C₃ type chromium carbide was measured by micro- Vicker s hardness tester . Increasing to V, Mo content in specimen, result to increasing dissolved V, Mo content in M_(7)C₃ type chromium carbide. Also hardnes s of M_(7)C₃ type chromium carbide was increased. At this point , V added specimen was superior to Mo added specimen. According as Mn content in specimen increases , Mn cont ent in M_(7)C₃ type chromium carbide some increased but hardness in M_(7)C₃ type chromium carbide some decreased.

녹차 및 결명자 추출물의 교정용 브라켓과 치면 사이의 경계부에서 분리된 mutans streptococci에 대한 항균작용

임성훈,서정순,윤영주,김광원,유소영,김화숙,국중기,이병래,차종희,박재윤 대한치과교정학회 2003 대한치과교정학회지 Vol.33 No.5

본 연구는 치아우식증에 관련된 Mutans streptococci 표준균주 및 임상분리 균주의 성장억제를 유도할 수 있는 천연 생약추출물을 검색하기 위하여 실시되었다. 녹차추출물은 CHMC-2032를 사용하였으며, 결명자 추출물은 50% 에탄올을 이용하여 얻었다. 이들 추출물의 Mutans streptococci 표준균주 및 교정환자들에서 브라켓과 치면 사이의 경계부에서 분리된 각각 10 균주씩의 S. mutans 및 S. sobrinus에 대한 최소성장억제농도를 액체배지 희석법으로 구하였다. 그 결과 CHMC-2032의 S. mutans 및 S. sobrinus의 표준 균주, S. sobrinus의 대부분 임상분리 균주에 대한 최소성장억제농도는 5 mg/ml이었다. 그러나 결명자 추출물에 의한 S. mutans 및 S. sobrinus에 대한 세균 성장억제 효과는 미미하였다. 본 연구 결과 치아우식증의 예방적 측면에서 결명자차보다는 녹차를 마시는 것이 유리하며, CHMC-2032를 이용하여 구강양치용액을 제조하여 사용할 경우 교정환자를 포함하여 대부분의 사람에게서 치아우식증 예방 효과가 있으리고 추정된다. Mutans streptococci is the major causative factor in dental caries. Especially, orthodontic patients with fixed appliance are a risk group for dental caries. Because fixed appliances attached on teeth may change the environment of dental plaque, the enamel decalcification or dental caries around the bracket and band is a major side effect of orthodontic treatment. The aim of this study was to search plant extracts that have antimicrobial effect on mutans streptococci. Seed-extract of Casio tora were prepared with ethanol and CHMC-2032, the leaf-extracts from Camellia sinensis extract, was obtained extract, 2 type strains and 20 clinical isolates of mutans streptococci isolated from the interface between orthodontic brackets and tooth surfaces in the orthodontic patients were used in this study. The minimal inhibitory concentration of CHMC-2032 was 5 mg/ml on the S. mutans KCTC 3065, S. sobrinus KCTC 3088, and 8 clinical isolates of S. sobrinus. However, there was no antibacterial effect of seed-extract of C. tora on mutans streptococci. These data suggest that green tea may be more effective than the tea prepared from C. tora in the prevention of enamel decalcification or dental caries around brackets.

A Transdisciplinary Approach of Crisisonomy for Implementing SDGs in Global Society - Using the Core System Model and Disaster Resilience Concept -

Jae Eun Lee,Seol A Kwon,Dong Kyun Yim,Jae Soo Yoo,Young Woon Ban,Hyun Jung Yoo,Seung Jin Maeng,Sungeun You,Hae-Jin Lee,Joong-Kook Choi,Muhammad Azam,Gajendra Sharma 위기관리 이론과 실천 2019 Crisisonomy Vol.15 No.6

The purpose of this study is to suggest a framework to implement SDGs (Sustainable Development Goals) by utilizing the transdisciplinary “crisisonomy” approach with the core system model and the concept of disaster resilience. The transdisciplinary “crisisonomy” consists of social activities which find and apply the solutions to social problems, science and technology innovation activities, and technology knowledge to solve problems. The core system model needs to be prepared through a transdisciplinary approach as follows. First, we must set a common goal as the value that society members agree on. Second, we need to provide implementing organizations with laws and guidelines to achieve the values expressed in vision, strategy and action plan. Third, leadership has to ensure that the efforts to implement the SDGs should be effective. Fourth, the successful implementation of the SDGs requires the devotion of ordinary citizens, practitioners, experts and leaders. Finally, we need the expertise in creating new knowledge for SDGs as well as the expertise in the cooperation of citizens and experts.

천변저류지 조성에 따른 효과분석 : (2) 경제적 가치 평가

유병국(Yoo Byung Kook),곽재원(Kwak Jae Won),김형수(Kim Hung Soo),김재근(Kim Jae Guen) 대한토목학회 2010 대한토목학회논문집 B Vol.30 No.1B

천변저류지의 조성에 관한 기존의 연구는 천변저류지의 홍수조절 효과분석이나 유량변화 등을 이용하여 그 효과를 판단하고 적용하여 왔다. 그러나 이와 같은 분석방법은 천변저류지의 조성에 의한 경제적인 효과를 명확하게 제시할 수 없으므로 천변저류지의 타당성과 역할을 정확하게 평가하고 알리기에는 한계가 있다. 본 연구에서는 천변저류지 조성에 따른 홍수 조절 효과와 수질개선효과 및 생태적인 효과를 경제적인 가치로 산정하고 이를 정량화하였다. 이를 위하여 경상남도 창녕군에 위치한 우포늪 지역을 대상으로 분석을 수행하였으며, 우포늪의 천변저류지 조성에 따른 경제적인 가치는 평균 819억원으로 산정되었다. 본 연구에서 제시한 경제적 가치 평가는 천변저류지의 효과 및 중요성을 판단하는데 기여할 수 있을 것으로 판단된다. The previous researches on wash land construction have focused on the flood control effect or flow discharge change. In spite of the previous studies, the wash land construction has lacks of representing its reasonable value and effects. Therefore, this study tried to perform the economic value analysis based on flood damage reduction, water quality improvement, ecological effectiveness, and socio-cultural effect for the wash land construction plan in Topyeong-cheon basin in Changyeong-gun, Gyeo-ngnam. The results of value analysis showed the economic value of about 87.6 billion won was estimated and this could contribute to the realization of the effect and importance of wash land construction.

CI의 理論과 實際

柳濟國 중앙대학교 예술연구소 1990 中央大學校 藝術大學 創論 Vol.9 No.-

As the human civilization is being formed in the ongoing process of human life and experiences, the character of man is being developed in the course of his growth, giving a certain image to others. The reason why this treatise presents this them lies in the pursuit of identifying how an integranted image of a person combining his character, behavior, and appearance is being molded in the course of his experiencing complex relationships with various groups during his life time. C. I.(corporate identify) are the very initials emerged as a methodology to deal with problems such as one presented above. For instance, in the case of industries, it is the business ethics that should come before the profits or the formulation of new business culture. Business culture mentioned here translates into the sharing of conveniences and happiness with the general public in the form of human relations, mental culture and services that are most likely slighted in the process of mass production of products and snowballing information flow. Therefore, at the very moment of the establishment of a corporation, there should exist the founding spirit and philosophy of the founder and staffed by personnel united in the founding ideal and represented by beautiful, unique symbols or logos embracing such corporate ideals and philosohy that could be effectively used as the basic visual system for all corporate activities both internal and external. As the image culture symbolizes the modernity, the enhancement of the corporate image tantamounts to the vary survival of the corporation. In this context, the introduction of C. I. is necessary as a strategy for the maintenance of the corporate image. For the method of the introduction of C. I. and for the measurement of the effectiveness thereafter, the desirable corporate image could only be consistently maintained through the survey activities both inside and outside the corporation.