• 제목/요약/키워드: graduate thesis

검색결과 273건 처리시간 0.024초

니켈-크롬 합금 보철물 주위 치은열구 내에서 발견된 니켈 내성 균주에 관한 분자생물학적 연구 (A Study of Ni-resistant bacteria isolated from gingival crevicular fluid on the patients wearing Ni-Cr alloy prosthesis (In terms of molecular biological aspects))

  • 채영아;우이형;최부병;최대균;이성복;권긍록
    • 대한치과보철학회지
    • /
    • 제37권6호
    • /
    • pp.741-755
    • /
    • 1999
  • As a material of metal-ceramic prosthesis, nickel as a form of Ni-Cr alloy has been used for many dental prostheses in many cases. However, several problems in use of the alloy have been revealed (ex : tissue stimulation, skin allergy, hypersensitivity, cytotoxicity and carcinogenecity). Little is known about nickel with respect to the relationship between Ni-prosthesis and gaining of Ni-resistance in oral microorganisms. The present study was undertaken to check wheather use of Ni-prosthesis leads to occurrence of Ni-resistant microorganisms. So this study may suggest the possible relationships between the oral microorganisms and nickel-resistance in oral environment. Bacteria were isolated from the gingival crevicular fluid on the pateints wearing Ni-Cr prosthesis. The isolated bacteria were tested for their Ni-resistance in nickel containing media at different concentration from 3mM to 110mM. E. coli HB101 was used as control. The Ni-resistant bacteria were isolated and biochemically identified. The Ni-resistant bacteria were tested several bio-chemical, molecular-biological tests. Performed tests were ; measuring the growth curve, antibiotic test, growth ability test in liquid media, isolation of the chromosome and plasmid, digestion of DNA by restriction enzyme, electrophoresis of chromosome and plasmid DNA, identification of Ni-resistant genes by the DNA hybridization. The results were as follows: 1) The bacteria isolated from gingival crevicular fluid on the patients wearing Ni-Cr alloy pros-thesis showed nickel-resistance. 2) The isolated microorganisms grew at nickel containing media of high concentrations (60mM-110mM). 3) Based on the biochemical tests, the isolated microorganisms were identified as Enterococcus faecalis(13 cases), Klebsiella pneumoniae(1 case) and Enterobacter gergeviae(1 case). 4) Enterococcus faecalis expressed not only nickel resistance but also the multi-drug resistance to several antibiotics ; chloramphenicol, kanamicin, streptomycin, lincomycin, clindamycin. However, all strain showed the sensitivity against the tetracycline. 5) DNA hybridization result suggest that there is no homology between the previousely known gene of nickel resistance in Klebsiella pneumoniae and chromosomal DNA of Enterococcus faecalis.

  • PDF

NAC 시스템의 시험방법과 평가사례에 관한 연구 (A Study the Test Methods and Evaluation Practices of Network Access Control System)

  • 양효식;전인오
    • 디지털융복합연구
    • /
    • 제12권9호
    • /
    • pp.159-168
    • /
    • 2014
  • 인터넷과 이동통신 기기의 발전으로 인해 개인의 경제활동에 관련된 인터넷뱅킹, 인터넷대출, 스마트폰등과 같은 이동통신기기를 이용한 모바일 뱅킹이 활성화되고 있다. 이에 따라 신종 범죄를 막기 위해 보안 시스템들이 새롭게 선보이고 있으며, 앞으로 보안 시스템의 시장은 날로 늘어날 것으로 보고 이에 따른 보안 시스템들에 대한 질적인 발전이 지속적으로 요구되고 있다. 따라서 보안시스템 제품의 시장이 지속적으로 성장할 것으로 예상되는 시점에서 보안 시스템의 품질평가 요구에 대응하기 위해 본 논문에서는 보안 시스템중의 네트워크 접근제어시스템 분야의 기반기술과 표준을 조사하고, 동향을 분석하여 관련 시스템의 시험과 평가방법을 제안하여 네트워크 접근제어시스템의 품질평가 방법과 체계를 제안하였다.

한국간호의 현재 (Present Situation of Korean Nursing)

  • 최의순
    • 여성건강간호학회지
    • /
    • 제10권3호
    • /
    • pp.190-199
    • /
    • 2004
  • This thesis explores the actual circumstances of Korean nursing by investigating its present situations. Ultimately, the intent of this study aims to establish a future direction of Korean Nursing. As such, the current conditions of Korean nursing is analyzed in the following categories: education, practice, research, nursing policy, expansion of nursing field, and entrepreneurship. In the final conclusion, an appropriate orientation of the future of Korean nursing is discussed. There are two primary Nursing programs, a three-year(63) and a four-year(53), in Korean Nursing education. Master's programs are available at 32 nursing schools or 32 professional graduate schools. A total of 15 nursing schools have a doctoral program in Korea. The ratio of graduates between the three-year and four year programs is 76:24. Hence, it is highly encouraged to expand four-year nursing programs, because it will help raise the social status of nursing professionals as well as the quality of nursing. In the clinical nursing field, independency and self regulation are critical. As such, organizational change, implementation of a standardized nursing m information system, appropriate workforce, and improvement of the reimbursement system in nursing is recommended. In community nursing, the following should be resolved to provide better nursing services: improvement of working condition and benefits, establishment of a law enforcing the hiring of nurses, and providing continuing education. The number of nursing research has increased and nursing studies are in great quantity. However, research in practices and theories are more in demanded. Hence, research that integrates theories and practices are very significant. Ultimately, it is critical to support nursing studies that will influence nursing policy. The Korean Nurses Association(KNA) is an organization that supervises the nation's nursing policy. The primary focus of KNA is to combine the three and four year undergraduate education systems into 4 years and to establish the Nursing Practice Act. The Ministry of Health and Welfare has adapted a system to educate and certify nurse specialists in 10 nursing areas in 21 nursing graduate schools expecting high-quality nursing services and a decrease of cost. The government also allowed nurses to operate facilities for health management or welfare agencies.

  • PDF

거머리 요법에 대한 연구동향 (The literature review of Leech therapy)

  • 장효길;허동석
    • 대한약침학회지
    • /
    • 제13권1호
    • /
    • pp.103-120
    • /
    • 2010
  • Objective : To review the trend of the study related to Leech therapy and to establish the hereafter direction for the study on Leech therapy. Methods : I reviewed and analyzed all the theses published in Domestic and Foreign research institution from 1990 to 2009. Results : The following results were obtained in this study. 1. Analyzed number of theses published, there was no significance per year. 2. Classified by theme of journal, journals related to surgery were most(41 journals, 75.92%) among 54 kinds. 3. Classified by theses by research method and thesis types, case report accounted for nearly twothirds (52 pieces, 68.42%) of all theses and consideration of document was next(9 pieces, 11.84%). 4. With the most case of venous congestion after plastic and reconstructive surgery(33 pieces, 63.46%), leech therapy was effective on illnesses such as haematoma, macroglossia, purpura, varicous vein, avulsion injury, neurovascular compression, diabetic neuropathy, penoscrotal oedema, buerger's disease, rheumatoid arthritis. 5. Two most appeared adverse effects were anemia and infection. Immediate blood transfusion was done for recovering anemia and prophylactic 3rd generation antibiotics to infection were emphasized in more than half of case reports. 6. All of consideration of documents was retrospective study of cases related leech therapy and 3 pieces of them emphasized prophyratic antibiotic treatment for preventing infection. 7. The study of clinical trail type started first in 2002 and osteoarthritis of knee and carpometacarpal joint were main target. As see above result, Leech therapy was effective cure and could be used in disease induced by venous congestion. And I think that it is necessary to perform additional study related to solution of problems about leech therapy and protocol for using in clinical practice.

새로운 발명기법 인벤토그램을 이용한 헤어드라이기 개발 (Developing a hair dryer using a new invention techniques Inventogram)

  • 한재오;오세훈
    • 한국산학기술학회논문지
    • /
    • 제15권11호
    • /
    • pp.6425-6431
    • /
    • 2014
  • 과학의 발달로 누구나 원하는 정보를 얻고 공유하는 것이 쉬워졌으며, 인터넷과 스마트 폰을 매개로 지구촌간의 정보 파급 속도가 빠르게 증가하고 있다. 그 결과 히트 아이디어 제품이 매우 빠른 속도로 전 세계로 펴져나가며 막대한 부의 창출도 가능하다. 더 나아가서는 한 국가의 경제부흥에도 큰 영향력을 미칠 수 있다. 그러나 이러한 아이디어 제품을 도출해내기 위한 기존의 발명기법들은 일반인들이 사용하기 어려운 점들이 많으며, 또한 현재의 히트상품을 개발하기 위해서는 부족한 점들도 많다. 본 연구에서는 기존의 발명기법들의 한계점을 파악하고, 히트 아이디어 상품 속에 숨겨져 있는 발명원리와 아이디어를 분석하였다. 분석을 통해 얻어진 결과는 픽토그램 이라는 일종의 그림문자와 결합하여 발명기법으로 상징화하여서 누구나 습득하기 쉬운 인벤토그램을 만들었다. 더 나아가 인벤토그램을 활용하여 전자파가 차단되는 헤어드라이기를 개발하였다.

물류촉진형 통관제도 구축방안 (Analysis of the Customs Procedures Modification to facilitate the Movements of Goods)

  • 백승래;유성진
    • 한국항해항만학회지
    • /
    • 제32권8호
    • /
    • pp.659-665
    • /
    • 2008
  • 본 논문은 최근의 급변하는 국제무역환경, 통관제도의 발전내역, 컨테이너물동량의 변화추이 등을 살펴보고 물류현장에서의 경험과 다양한 의견 수렴을 토대로 부산항에 대하여 부두지역에서의 컨테이너화물 물류를 촉진할 수 있는 효율적인 통관제도를 연구하였다. 항만지역 컨테이너의 흐름을 더욱 원활히 하기 위하여 해상 수입화물의 적하목륵 제출$\sim$하선신고$\sim$반입신고 구간에서 보세운송신고와 수입통관에 제한을 두고 있는 구간을 개선하는 방안을 제시하였고, 물류보안 강화를 통한 항만경쟁력을 확보하기 위하여 수출화물 선적지세관 선별검사제도와 환적 컨테이너 고체작업 예정신고제 및 컨테이너번호 봉인번호 추적체계 도입 등을 제시하였다.

섬유매체를 활용한 집단미술치료가 중학생의 정서지능에 미치는 효과 (The Effects of Group Art Therapy Using Fabric Medium on Emotional Intelligence of Middle School Students)

  • 박치홍;김갑숙
    • 가정과삶의질연구
    • /
    • 제28권3호
    • /
    • pp.61-71
    • /
    • 2010
  • This thesis seeks to inquire into the effect of group art therapy using a fabric medium on the emotional intelligence of middle school students. This application of fabrics to group art therapy is helpful in terms of gender roles and equality from an educational aspect and can help activate and control positive sentiment. Therefore, it was believed to have a positive effect on emotional intelligence. The subjects were 28 boys and girls who were students of the Supportive Project for the Priority Region of Educational Welfare Investment. The measurement tool is a revision of the emotional intelligence test of Mun Yong-Rin (1997), which itself was based on the emotional intelligence model of Mayer and Salovey (1997). The data materials are analyzed by SPSS (ver. 17.0 for Windows). To test the homogeneity of the groups, the Mann-Whitney U test was carried out, and to analyze the effect of this program, the Wilcoxon signed ranks test was carried out. The results are as follows. This program had a positive effect on the emotional intelligence of both male and female students, especially on their empathy and activation of thinking among the subcategories. This study has significance in that it verifies the effect of the improvement of emotional intelligence by way of group art therapy using fabrics, adding a fabric medium to the art medium. As the subject group was restricted to 28 adolescents in the Supportive Project, it is not easy to generalize the achievement to the entiresphere of group art therapy.

A Structure and Framework for Sign Language Interaction

  • Kim, Soyoung;Pan, Younghwan
    • 대한인간공학회지
    • /
    • 제34권5호
    • /
    • pp.411-426
    • /
    • 2015
  • Objective: The goal of this thesis is to design the interaction structure and framework of system to recognize sign language. Background: The sign language of meaningful individual gestures is combined to construct a sentence, so it is difficult to interpret and recognize the meaning of hand gesture for system, because of the sequence of continuous gestures. This being so, in order to interpret the meaning of individual gesture correctly, the interaction structure and framework are needed so that they can segment the indication of individual gesture. Method: We analyze 700 sign language words to structuralize the sign language gesture interaction. First of all, we analyze the transformational patterns of the hand gesture. Second, we analyze the movement of the transformational patterns of the hand gesture. Third, we analyze the type of other gestures except hands. Based on this, we design a framework for sign language interaction. Results: We elicited 8 patterns of hand gesture on the basis of the fact on whether the gesture has a change from starting point to ending point. And then, we analyzed the hand movement based on 3 elements: patterns of movement, direction, and whether hand movement is repeating or not. Moreover, we defined 11 movements of other gestures except hands and classified 8 types of interaction. The framework for sign language interaction, which was designed based on this mentioned above, applies to more than 700 individual gestures of the sign language, and can be classified as an individual gesture in spite of situation which has continuous gestures. Conclusion: This study has structuralized in 3 aspects defined to analyze the transformational patterns of the starting point and the ending point of hand shape, hand movement, and other gestures except hands for sign language interaction. Based on this, we designed the framework that can recognize the individual gestures and interpret the meaning more accurately, when meaningful individual gesture is input sequence of continuous gestures. Application: When we develop the system of sign language recognition, we can apply interaction framework to it. Structuralized gesture can be used for using database of sign language, inventing an automatic recognition system, and studying on the action gestures in other areas.

ARCS 동기 이론을 적용한 학습용 모바일 앱 설계 연구 (The Use of the ARCS Motivation Model in Mobile Learning Apps Design)

  • 김의호;양해술
    • 디지털융복합연구
    • /
    • 제13권4호
    • /
    • pp.69-79
    • /
    • 2015
  • 증강현실까지도 구현할 수 있는 기능을 가진 스마트폰의 보급률이 높아지면서 그 활용 범위도 급격하게 증가하고 있다. 그러나 다양한 기능이 있음에도 학습용 앱은 부족한 상황이다. 모바일의 장점인 이동성은 학습자가 시공간의 제한 없이 학습할 수 있지만 학습자가 학습하는데 적합하지 않은 장소도 제공될 수 있다는 의미이다. 이러한 관점에서 학습 동기를 유발시키고 지속시킬 모바일 기반 학습용 앱이 필요한 상황이다. 본 논문에서는 ARCS 이론의 동기 전략과 웹 기반 콘텐츠의 UI를 분석하여 모바일 학습용 앱 설계 시 고려할 사항을 제안하였다. 또한, ARCS 이론을 적용한 모바일 학습용 앱 설계의 절차적 모형을 구안하고 이를 바탕으로 모바일 학습용 앱 설계 방안을 제안하였다.

기록학 대학원 교육 프로그램에 관한 비교 연구 - 한국과 북미를 중심으로 - (A Comparative Study of Graduate Archival Programs in Korea and North America)

  • 정연경
    • 한국문헌정보학회지
    • /
    • 제37권1호
    • /
    • pp.81-100
    • /
    • 2003
  • 본 연구는 한국과 북미에서 현재 이루어지고 있는 기록학 석사 프로그램을 비교 분석함으로써 한국의 기록학 석사 학위 프로그램에서 반드시 고려해야할 요소와 기록학 교육이 나아가야 할 방향을 제시하였다. 웹사이트 내용분석과 문헌연구를 바탕으로 각 프로그램의 소속 및 명칭, 학점, 교과목, 실습, 연구 및 논문에 관해 중점적으로 다루었다. 분석 결과, 보다 다양한 석사학위 과정 개발, 독립된 석사학위 명칭 부여, 전공 학점의 추가, 교과과정의 표준화, 실습 및 연구 환경 조성이 필수적인 요소로 나타났다. 또한 다양한 학문의 참여와 시도, 이론과 경험이 많은 교원의 채용, 교육기관과 현장 및 전문 단체의 활발한 교류, 교육 프로그램에 대한 지속적인 연구, 기록전문가의 자질 개발, 국가적 차원의 관심과 지원 및 기록전문가의 엄격한 자격제도 규정을 발전 방향으로 제시하였다.