• 과학교육연구지
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• 제41권3호
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• pp.365-381
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• 2017

본 연구는 이전 연구 (Park et al. 2015)에서 POCoM (Practical On-site Cooperation Model)이 긍정적으로 과학수업을 개선할 수 있었다는 결과에 기초하여, 보다 다양한 상황에서도 POCoM의 긍정적인 결과를 기대할 수 있는지, 그에 따라 POCoM을 일반화할 수 있는지를 탐색해 보기 위해 실시되었다. 이를 위해 이전 연구결과를 포함한 총 18개 순환 (총 72개 수업)을 교실 수업과 실험실 수업으로 나누고, 1차 순환과 얼마의 기간 후에 다시 실시된 2차 순환으로 나누고, 또 본 연구를 계획한 연구자가 수업 개선을 노력한 경우와 다른 전문가들이 수업 개선을 위해 노력한 경우로 각각 나누어 다음 3가지 측면을 중심으로 POCoM의 적용결과를 비교하였다: 전체적인 수업 개선율, 개선이 필요하다고 분석된 KTOP (Korean Teaching Observation Protocol) 항목 수와 4차시까지 진행되면서 나타난 이러한 항목 수의 변화. 분석 결과, 1차 순환 이후에 POCoM을 2차로 적용해도 동일한 개선효과를 볼 수 있었으며, 이 결과로부터 2차 순환 후 일상적 과학학습에서도 개선 효과가 유지될 것으로 예측되었다. 그리고 교실 수업과 실험실 수업 모두에서 POCoM 적용을 통한 유사한 개선 효과를 볼 수 있었다. 다른 전문가들이 적용한 경우에는 본 연구자가 적용한 경우보다 통계적인 차이가 있지는 않았지만, 개선율이 적게 나타나고 개선이 필요한 항목수도 많은 것으로 나타났다. 그러나 다른 전문가들도 6차시까지 개선을 계속하면, 본 연구자가 4차시까지 적용하면서 얻은 개선 정도를 얻을 수 있을 것으로 예측되었다. 결론적으로 POCoM은 다양한 상황에 적용할 수 있으며, 다양한 상황에서 큰 차이가 없는 효과를 기대할 수 있다고 판단되었다.

• 한국지리정보학회지
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• 제21권4호
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• pp.64-80
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• 2018

우리나라의 시민들은 범죄에 대한 일반적인 사항만을 알 수 있을 뿐, 자신이 범죄위험에 얼마나 노출되어 있는지를 파악하기 어렵다. 경찰의 입장에서도 범죄발생 지역을 예측할 수 있다면 경찰력이 부족한 상황에서 효율성 있게 범죄에 대처 가능할 것이지만 아직 우리나라에서는 예측시스템이 없고, 관련 연구도 매우 부족한 실정이다. 이에 본 연구에서는 범죄발생 위험지역 예측 자동화 시스템 개발의 첫 번째 단계로 빅데이터로 구축 가능한 범죄정보와 도시지역 자료를 바탕으로 머신러닝 방식을 통해 한국형 범죄발생 위험지역 예측 모형을 개발하고자 한다. 또한 시나리오를 가정하여 범죄발생 확률을 지도로 시각화함으로써 사용자의 이해도를 높이도록 하였다. 선행 연구 및 사례에서 범죄발생에 영향을 미치는 요인 중 빅데이터로 구축 가능한 범죄정보, 날씨정보(기온, 강수량, 풍속, 습도, 일조, 일사, 적설, 전운량), 지역정보(평균 건폐율, 평균 용적율, 평균 높이, 총 건축물수, 평균 공시지가, 평균 주거용도면적, 평균 지상층수)를 머신러닝에 활용할 수 있도록 데이터를 사전 처리하였다. 머신러닝 알고리즘으로서 지도학습 모형 중 다양한 분야에서 활용되며 정확도가 높다고 알려진 의사결정나무모형, 랜덤포레스트모형, Support Vector Machine(SVM)모형을 활용하여 범죄 예측 모형을 구축하고 비교 분석하였다. 그 결과 평균 제곱근 오차(Root Mean Square Error, RMSE)가 낮아 예측력이 높은 의사결정나무모형을 최적모형으로 선정하였다. 이를 바탕으로 가장 빈번하게 발생하는 절도와 폭력범죄를 대상으로 시나리오를 작성하여 범죄 발생 위험지역을 예측한 결과, 사례도시 J시는 위험지역이 3가지 패턴으로 발생하는 것으로 나타났으며, 각각 발생확률을 3 등급으로 구분하여 $250{\times}250m$ 단위의 지도형태로 시각화할 수 있었다. 본 연구는 향후 자동화 시스템으로 개발하여 시시각각으로 변하는 도시 상황에 따라 실시간으로 예측 결과를 시각화하여 제공함으로써 보다 범죄로부터 안전한 도시환경 조성에 기여하고자 한다.

• Journal of Oral Medicine and Pain
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• 제32권1호
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• pp.9-33
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• 2007

치의학계에서는 의료사고를 일으킬만한 중환자나 응급환자의 빈도가 상대적으로 낮아 의료분쟁에 휘말리는 경우가 적었으나 요즈음은 의료분쟁이 증가하고 있는 추세이다. 치과진료의 특성상 항상 보조인력이 한, 두명씩 치과의사의 진료를 도와주어야 하고, 치과의사의 의료사고로 인해 의료분쟁으로 발생하는 경우도 있지만 의료법에서 정한 치과 보조인력의 진료영역에서 의료사고 및 분쟁이 발생할 수 있다. 또한 의료기관의 친절도, 서비스 불만 등 진료외적인 요인은 치과 보조인력의 역할을 무시할 수 없다. 본 연구는 2006년 현재 종합병원, 치과병원 및 의원에서 치과진료 보조업무를 하고 있는 치과위생사를 대상으로 설문조사를 하였다. 회수된 275명의 설문분석을 통하여 응답자에 관한 기본적인 자료조사 및 환자의 불평, 불만 및 의료분쟁 경험도와 함께 의료관계법의 이해도를 측정하고, 치과진료 및 의료분쟁에 대한 전반적인 의식성향을 비교분석하여 다음과 같은 결과를 얻었다. 1. 설문응답자 중에서 향후 의료사고 및 분쟁이 발생할지도 모른다는 불안감 또는 의구심을 어느 정도 가지고 있는 경우가 274명 중 251명(91.3%)이었다. 2. 치과위생사의 업무, 진료에 대한 환자의 불평, 불만 경험률은 29.5%(81명)으로 나타나 치과관련 의료분쟁의 원인이 될 수 있는 것으로 조사되었다. 3. 전체유형별 항목에 따른 환자의 문제제기 건수를 보면 직접적인 진료행위와 관련된 문제보다 불친절 및 진료비 등의 진료이외의 문제 제기가 1805건 중 349건(19.3%)으로 가장 높게 나타났다. 4. 세부유형별 항목에 따른 환자의 문제제기 건수를 보면 환자가 치료와 관련하여 충분한 사전설명이나 동의를 구하지 않았다고 문제시 한 경우가 1805건 중 129건(7.1%)으로 가장 높았다. 5. 치과위생사가 스케일링 시술 후 환자 진료기록부에 기록하는 경우는 267명 중 252명(94.4%)으로 나타났으나, 스케일링 시술 후 주의사항 설명 사실을 진료기록부에 기록하는 경우는 55명(20.8%)에 불과했다. 6. 치과진료에 있어서 환자가 언급하지 않으면 특별히 전신질환 유무를 조사하지 않는 경우가 6명(2.2%)으로 조사되었다. 7. 환자 진료와 관련되어 응급상황 발생 시 응급조치를 시행할 수 있다고 생각하는 치과위생사는 104명(38.0%)으로 조사되었다. 8. 근무지에 응급상황 발생 시 조치에 필요한 장비 및 약품을 구비해둔 경우는 115명(41.8%)으로 나타났다. 9. 의료분쟁 발생 시 문제해결에 있어 의무기록이 중요한 역할을 한다고 응답한 경우는 268명(97.81%)으로 나타났다. 10. 의료분쟁 시 문제해결에 있어서 치료 전 설명 및 동의의 의무의 이행 여부가 중요한 역할을 한다고 응답한 경우가 272명 (99.3%)으로 나타났다. 11. 의무기록의 의무보관연도가 10년이라고 옳게 응답한 경우는 160명(58.4%)에 불과했다. 12. 치과위생사의 업무를 벗어난 파노라마사진 촬영을 해도 된다고 응답한 경우가 124명(45.3%), 치경부 레진수복을 해도 된다고 응답한 경우가 71명(25.9%), 유치발치를 해도 된다고 응답한 경우가 37명(13.5%)으로 나타났다. 13. 환자의 비밀누설 금지와 관련하여 환자의 상태를 다른 사람에게 이야기하는 것은 큰 문제가 되지 않는다고 응답한 경우가 24명(8.8%)으로 나타났다. 14. 의료분쟁의 예방 및 대책에 관한 교육의 필요성에 대해서 272명(99.3%)이 필요하고, 167명(61.0%)이 시급하다고 답하였다. 15. 재학 중 의료분쟁의 예방 및 대책에 관한 관련교육을 수료한 적이 없다는 경우가 186명(64.2%), 졸업 후 의료분쟁의 예방 및 대책에 관한 보수교육을 수료한 적이 없는 경우가 212명(77.4%)으로 나타났다. 16. 향후 의료분쟁이 증가할 것으로 생각된다는 응답은 256명(93.4%)이었고, 그 원인으로는 83.3%가 인터넷, 방송 등의 매체를 통한 정보습득 기회의 확대를 꼽았다. 이상의 결과를 종합해보면 치과위생사와 관련한 환자의 불평, 불만 및 분쟁도 경험률이 응답한 치과위생사의 29.5%를 차지하고 있으며, 의료법에서 정한 의료인의 의무와 치과위생사의 직무범위에 대한 인식이 부족한 것으로 조사되어 앞으로 의료분쟁이 더욱 증가할 수 있는 가능성을 내포하고 있다. 그러므로 주의의무, 설명 및 동의의무 등의 의무를 다함은 물론, 이에 대한 인식을 제고하여야 하며, 의료법과 의료분쟁에 대한 예방 및 대책과 관련된 교육기회를 확대하여야 할 것이다.

• Asia pacific journal of information systems
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• 제17권4호
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• pp.31-59
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• 2007

We frequently use search engines to find relevant information in the Web but still end up with too much information. In order to solve this problem of information overload, ranking algorithms have been applied to various domains. As more information will be available in the future, effectively and efficiently ranking search results will become more critical. In this paper, we propose a ranking algorithm for the Semantic Web resources, specifically RDF resources. Traditionally, the importance of a particular Web page is estimated based on the number of key words found in the page, which is subject to manipulation. In contrast, link analysis methods such as Google's PageRank capitalize on the information which is inherent in the link structure of the Web graph. PageRank considers a certain page highly important if it is referred to by many other pages. The degree of the importance also increases if the importance of the referring pages is high. Kleinberg's algorithm is another link-structure based ranking algorithm for Web pages. Unlike PageRank, Kleinberg's algorithm utilizes two kinds of scores: the authority score and the hub score. If a page has a high authority score, it is an authority on a given topic and many pages refer to it. A page with a high hub score links to many authoritative pages. As mentioned above, the link-structure based ranking method has been playing an essential role in World Wide Web(WWW), and nowadays, many people recognize the effectiveness and efficiency of it. On the other hand, as Resource Description Framework(RDF) data model forms the foundation of the Semantic Web, any information in the Semantic Web can be expressed with RDF graph, making the ranking algorithm for RDF knowledge bases greatly important. The RDF graph consists of nodes and directional links similar to the Web graph. As a result, the link-structure based ranking method seems to be highly applicable to ranking the Semantic Web resources. However, the information space of the Semantic Web is more complex than that of WWW. For instance, WWW can be considered as one huge class, i.e., a collection of Web pages, which has only a recursive property, i.e., a 'refers to' property corresponding to the hyperlinks. However, the Semantic Web encompasses various kinds of classes and properties, and consequently, ranking methods used in WWW should be modified to reflect the complexity of the information space in the Semantic Web. Previous research addressed the ranking problem of query results retrieved from RDF knowledge bases. Mukherjea and Bamba modified Kleinberg's algorithm in order to apply their algorithm to rank the Semantic Web resources. They defined the objectivity score and the subjectivity score of a resource, which correspond to the authority score and the hub score of Kleinberg's, respectively. They concentrated on the diversity of properties and introduced property weights to control the influence of a resource on another resource depending on the characteristic of the property linking the two resources. A node with a high objectivity score becomes the object of many RDF triples, and a node with a high subjectivity score becomes the subject of many RDF triples. They developed several kinds of Semantic Web systems in order to validate their technique and showed some experimental results verifying the applicability of their method to the Semantic Web. Despite their efforts, however, there remained some limitations which they reported in their paper. First, their algorithm is useful only when a Semantic Web system represents most of the knowledge pertaining to a certain domain. In other words, the ratio of links to nodes should be high, or overall resources should be described in detail, to a certain degree for their algorithm to properly work. Second, a Tightly-Knit Community(TKC) effect, the phenomenon that pages which are less important but yet densely connected have higher scores than the ones that are more important but sparsely connected, remains as problematic. Third, a resource may have a high score, not because it is actually important, but simply because it is very common and as a consequence it has many links pointing to it. In this paper, we examine such ranking problems from a novel perspective and propose a new algorithm which can solve the problems under the previous studies. Our proposed method is based on a class-oriented approach. In contrast to the predicate-oriented approach entertained by the previous research, a user, under our approach, determines the weights of a property by comparing its relative significance to the other properties when evaluating the importance of resources in a specific class. This approach stems from the idea that most queries are supposed to find resources belonging to the same class in the Semantic Web, which consists of many heterogeneous classes in RDF Schema. This approach closely reflects the way that people, in the real world, evaluate something, and will turn out to be superior to the predicate-oriented approach for the Semantic Web. Our proposed algorithm can resolve the TKC(Tightly Knit Community) effect, and further can shed lights on other limitations posed by the previous research. In addition, we propose two ways to incorporate data-type properties which have not been employed even in the case when they have some significance on the resource importance. We designed an experiment to show the effectiveness of our proposed algorithm and the validity of ranking results, which was not tried ever in previous research. We also conducted a comprehensive mathematical analysis, which was overlooked in previous research. The mathematical analysis enabled us to simplify the calculation procedure. Finally, we summarize our experimental results and discuss further research issues.

• 치위생과학회지
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• 제17권6호
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• pp.523-532
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• 2017

국내 치위생(학)과를 대상으로 하여 임상치위생학 교육과정 운영 현황을 조사하고, 심층 분석한 결과 첫째, 임상치위생학 영역의 교과목 명칭은 전체 96개 과목으로 확인되었으며, 학교별로 매우 다양하게 나타났다. 그러나 전체 교과목 중 60.5%가 임상치위생학 또는 임상치위생학 및 실습이라는 명칭으로 사용하고 있었다. 둘째, 임상치위생학 교과목 운영은 졸업시점까지 평균 21.1학점을 이수하고, 15주차 수업으로 평균 471.3시간 수업을 운영하는 것으로 나타났다. 또한 교수 1인당 학생 수는 21.4명을 담당하였으며, 3년제에 비해 4년제에서 더 많은 학점과 시간을 배정하여 운영하고 있는 것으로 조사되었다. 셋째, 임상치위생학의 교육주제와 내용에서는 감염관리, 치위생관리를 위한 기초 개념의 이해, 치위생사정, 중재 및 평가, 증례연구, 치주기구조작법 등으로 나타났다. 그러나 치위생관리과정의 개념, 치위생사정, 치아우식증, 치주질환 위험도 평가, 특별환자 관리, 전신질환자의 구강건강관리 등에 대한 수업운영내용은 3, 4년제 학제 간 차이가 컸으며, 사정과 수행 중심의 교육내용으로 운영되며, 학제 내에서도 교육운영내용의 차이가 있는 것으로 조사되었다. 넷째, 대상자 실습은 대상자 1인당 평균 2시간 소요되었고, 평균 1.9회 내원하도록 하여 실습을 진행하고 있는 것으로 나타났다. 졸업시점까지 필수적으로 진행하는 대상자 실습은 3년제의 경우 평균 총 19개의 케이스를, 4년제의 경우 평균 26.6개 케이스를 실습하고 있었고, 가장 적게는 15개의, 많게는 35개 케이스를 실습하였고, 학생 1인당 대상자 실습에 참여하는 시간은 3년제의 경우 평균 38.0시간, 4년제에서는 평균 53.1시간으로 나타났다. 본 연구는 일부 치위생(학)과를 대상으로 조사한 연구라 한계점은 있지만 임상치위생학 교육과정의 전체적인 흐름과 운영방식을 파악할 수 있었다. 학제를 떠나 임상치위생학의 교육과정 표준화를 위해서는 교과목 명칭, 졸업생 수준에서 치과위생사로서 달성해야 할 역량에 기반한 최소한의 수업운영내용, 이론과 실습시간, 학생수 대비 지도 교수자의 수 등에 대한 치위생계 내 합의 또는 가이드라인이 반드시 필요할 것으로 판단된다. 이러한 과정은 공적인 기관을 통해서 제도적 마련에 근거하여 변화할 수 있도록 노력해야 함을 확인하였다.

• 한국학교보건학회지
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• 제4권2호
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• pp.176-192
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• 1991

특수학교 보건관리의 방향 설정과 특수학교 양호교사 업무 수행에 있어 질적 향상을 위한 기초 자료를 제시하고자 전국의 102개 특수학교 양호교사를 대상으로 1991년 2월 1일부터 1991년 3월 31일까지 우편 설문 조사를 실시하여 회수된 77개 학교를 대상으로 분석한 결과를 요약하면 다음과 같다. 특수학교의 67.5%가 사립이고, 83.2%가 시 이상 지역에 위치해 있으며, 정신지체학교가 48.1%로 가장 많았다. 특수학교의 평균 학급수는 17.2학급, 평균학생수는 194명, 평균교직원 수는 28명이었다. 양호교사의 평균 연령은 32.7세였고, 97.4%가 전문대학 이상 졸업자였으며, 71.4%가 기혼자였고, 79.2%가 임상이나 보건과 관련된 분야의 과거경력이 있는 것으로 나타났다. 또한 62.3%의 양호교사가 단독 업무를 보고있었으며, 77.9%가 초등에 소속되어 있었다. 대상 특수학교 양호실은 68.9%가 l층에 위치해 있었고, 학교보건 조직은 90.9%가 구성되어 있지 않았으며, 학교보건 인력으로 교의, 치과의, 학교 약사 모두를 위촉하고 있는 곳은 18.2%에 불과했다. 학교보건에 관한 연간 예산은 양호교사의 46.8%가 모르고 있었으며, 학교당 평균 년간지출액은 317,000원으로 그 중 의약품 구입비가 제일 많았다. 학교당 월 평균양호실 이용자수는 71명이었고, 학생 1인당 연간 양호실 이용은 4.4회였으며, 외상으로 인한 이용이 26.6%로 가장 많았다. 양호실 이용자중 1.4%가 의료기관에 의뢰되었는데, 시각장애학교는 고열, 정서장애학교는 골절, 다른 영역학교는 외상으로 가장 많이 의뢰하였다. 특수학교 아동 중 간질 학생수는 956명으로 조사 대상학교 학생수의6.4%를 차지하고 있었다. 신체검사를 2회 이상 실시하고 있는 학교는 22.6% 밖에 되지 않았으며, 98.7%가 보건교육을 실시하고 있고, 성교육은 98.7%가 필요하다고 강조하였다. 보건교육은 개인 위생에 가장 비중을 두고 있었으며, 시각장애 학교는 방송교육, 청각장애 학교는 OHP나 VTR, 다른 영역의 학교는 가정통신문이나 OHP VTR을 가장 많이 사용하는 교육매체였다. 대상 양호교사의 46.8%가 학교보건관리중 보건교육이 가장 어렵다고 하였으며, 중점개선내용으로 49.4%가 특수학교 보건관리에 대한 구체적인 업무 지침이 필요하다고 강조하였다. 사업계획 및 평가, 양호실 관리, 보건교육, 환경관리, 건강관리 등의 양호교사 업무 수행은 비교적 높은 수행율과 자신감을 나타냈으나, 그 중 학교보건 사업의 평가, 체력검사, 보건교육 후 평가, 학교정화구역 관리, 상처 봉합에 대한 수행율과 자신감이 비교적 낮았다. 따라서 특수학교 보건관리의 방향설정과 양호업무의 질적수준 향상을 위하여 학교보건사업에 대한 구체적인 업무지침의 개선과 특수학교 양호교사에 대한 별도교육이 필요한 것으로 생각된다.

• 한국의상디자인학회지
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• 제7권3호
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• pp.113-127
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• 2005

From the ancient times, incense was used for various usages including a means of beauty expression with flavor, a medicine for disease treatment and a device for religious event or ritual. The period of T'ang was the times when cultural and material exchanges with foreign countries were very actively made under the political openness of the Chinese nation. Here the exchanges were made mainly through inland trade, called Silk Road(絲綢之路) and marine trade routes, Incense Road(香料之路). This indicates that incense was one of the main items actively traded at that time. In addition, literatures of the T'ang period show that in the Chinese nation, a wide range of classes from the imperial family to the public used incense for many different purposes. This suggests that the culture of incense was deeply prevailed and very socially significant in T'ang. This study investigated social factors that promoted the incense culture of T'ang and the applications and types of incense widely used in the period of T'ang. First, influential religions and the openness of sex culture were main social factors that made incense culture flourish in the period of T'ang. Above all, two main religions of the Chinese nation, Buddhism and Taoism became secularized under political protection by the imperial family. As Buddhism was popularized, the Buddhist ritual of incense burning made a contribution to making public incense culture. Providing its doctrines of eternal youth and eternal life, Taoism necessarily used incense to form a Taoistic climate. The flourishment of the foresaid religion in T'ang added more fuel to that of incense culture in the Chinese nation. The openness of sex culture brought about the Inauguration of the empress, improvement in female position and free relationships between man and woman. It was accelerated by sexology as a method of eternal youth provided by Taoism. The opened culture also developed the culture of kibang where female entertainers called kinyeo consumed lots of incense for decoration and sexual desire stimulation. These open climates of T'ang society made a great contribution to making incense culture, especially for decoration, prevailed throughout the Chinese nation. Second, types of incense prevailed and widely used in the period of T'ang included olive incense, germander(廣藿香), olibnum(乳香), myrrh Resinoid(沒藥), jia Xiang(甲香), clove(丁香) and Shen xian(沈香), all of which were imported from foreign nations and had various applications. Specifically, olive incense, germander(廣藿香), olibnum(乳香) and myrrh Resinoid(沒藥) were used for religious purposes while, jia Xiang(甲香), clove(丁香) and Shen xian(沈香) for the purposes of religion and decoration. In conclusion, a number of social factors including political, religious and medical purposes and the openness of sex culture set fundamentals on which the culture of incense was extensively developed and established as a social trend in T'ang. In the Chinese nation, incense culture was not just an option for taste, but a part of life style social members needed to know. People of T'ang not only enjoyed incense mainly for purposes of religion, pleasure and make-up, but also had the wisdom to know various effects of incense, curiosity about such new things and the will to imitate and pursue alien culture, resultantly flourishing incense culture. Thus the culture of incense represented many social aspects of T'ang.

• 한국수학사학회지
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• 제2권1호
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• pp.91-105
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• 1985

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 Korean mathematics. It is quite interesting to note that the mathematics in the "Enlightenment Period" changed rather smoothly into the Western mathematics at the 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, "Yanghwi - Sanpup" and "Sangmyung-Sanpup." King Sejong was quite phenomenal in his policy of promotion of mathematics. 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 onto 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-political 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 personality 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 of 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 King 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 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 effort 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 traditonal 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 matehmatics 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 sifted from Chinese into European.od" is the period in which Korean mathematics sifted from Chinese into European.pean.

• 한국수학교육학회지시리즈A:수학교육
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• 제24권2호
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• pp.48-73
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• 1986

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 Korean mathematics. It is quite interesting to note that the mathematics in the 'Enlightenment Period' changed rather smoothly into the Western mathematics at the 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 significant in that they paved the way for that of Chosun through a few books of mathematics such as 'Sanhak-Kyemong', 'Yanghwi-Sanpup' and 'Sangmyung-Sanpup'. King Sejong was quite phenomenal in his policy of promotion of mathematics. 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 anyone 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 perse 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-political 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 personality 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 he 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 perse 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 effort 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 hanged 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.

• 대한간호학회지
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• 제20권3호
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• pp.414-429
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• 1990

Numerous research reports have substantiated the role of stressful life events in relation to the onset of health changes. The relationship tends to hold across different age groups. Theoretically, adolescence has been considered a developmental crisis period of great stress, impoverished coping skills and high vulnerability to biological, social and psychological demands. The research problem addressed by this study was to examine the relationships between stressful life events and health symptom patterns, and the effect of two variables, coping and social, support, theoretically considered to mediate the relationship between stress and health symptoms in adolescents. The following five hypotheses were tested in this research : 1. Health symptoms are positively related to stressful life events in adolescents, 2. Health symptoms are negatively related to coping in adolescents, 3. Health symptoms are negatively related to social support in adolescents, 4. When coping is controlled, the relationship between health symptoms and stressful life events will decrease, and 5. When social support is controlled, the relationship between health symptoms and stressful life events will increase. The study subjects consisted of 1090 high school students of the metropolitan city of Seoul. The following sampling procedure was used : 1. Of the 169 high schools in nine school administrative districts in the city, a proportional sample of ten schools was selected. 2. One class from each of the freshman and sophomore was randomly selected and all the students who were in the sampled class were used as the study sample. The study was limited to freshman and sophomore adolescents, aged 15 to 18(mean＝16.6). Of the 1090 subjects 688(63%) were boys and 402(37%) were girls. An Adolescent Inventory of Stressful Life Events, a Health Symptom Questionnaire and an Adolescent Coping Inventory were adapted for this study. The Norbeck Social Support questionnaire was utilized to collect the data on perceived social support. Five high school teachers in the areas of school health and counselling reviewed the items of each questionnaire for content validity. A pilot study was undertaken to ascertain reliability. Fifty three high school students responded to the questionnaires and gave their opinions on the items. For stressful life events, health symptoms, coping, and social support, the Cronbach's alpha's on the study were .70, .94, .77, and .76, respectively. Research assistants attended all the sampled classes with the school proctor to explain the purpose and procedures of the study to the students. The questionnaires along with a ballpoint pen were distributed to the students who were asked to complete each item. The research assistants left the ballpoint pen with the students as a gift for their cooperation. An average of 50 minutes was required to complete the questionnaires. Using an SPSS, the first, three hypotheses were tested using Gamma, a measure of association for ordinal variables. Partial gamma was used to test the fourth and fifth hypotheses. Patterns of elaboration described by Babbie were selected to interpret the relationship of the three variable analyses. The significance of gamma was determined by Chisquare at a .05 level of significance. There was a positive relationship between health symptoms and stressful life events(Gamma＝.35, p＝.000). Thus the first hypothesis was supported. Unexpectedly, coping was positively related with health symptoms(Gamma＝.13, p＝.000). That is, the higher the coping levels, the greater number of health problems. The third hypothesis, the higher the level of social support, the fewer the health symptoms, was not accepted in this adolescent study group. When coping was controlled, under the condition of low coping the association between health symptoms and stressful life events increased significantly to a partial gamma of .39, and under the condition of high coping it was .30. According to the elaboration model, when one partial relationship is the same or greater than the original and the other is smaller, the control variable should be considered to be specifying the conditions. When social support was controlled the relationship between stressful life events and health symptoms increased under the condition of low social support, but with high social support, the relationship decreased. Both partial gamma were statistically significant at .05 level(.43 and .26 relatively). It can be interpreted that stressful life events are strongly and positively related to health symptoms under the condition of low social support, however this relationship can not be expected with high social support. Thus, the last two hypotheses were conditionally sustained. In this study, the relationships between stressful life events and health symptoms, and the specified me diating roles of coping and social support were found to have statistical interaction. This finding supports the theoretical position of this study. It suggests that stressful life events would create high susceptability to biological social and psychological health symptoms and coping and social support buffering the relationship between stressful life events and health symptom. The findings of this study have implications for nursing practice. When adolescents are confronted with non-developmental life events that are perceived as stressful, nurses should recognize the evidence of the stress-buffering effect of coping and social support on health symptoms and utilize the diverse sources of social support that are readily available to adolescents.