• 기본간호학회지
• /
• 제6권3호
• /
• pp.570-582
• /
• 1999

Although computers cannot analyze textual data in the same way as they analyze numerical data. they can nevertheless be of great assistance to qualitative researchers. Thus, the use of computers in analyzing qualitative data has increased since the 1980s. The purpose of this article was to explore advantages and disadvanteges of using computers to analyze textual data and to suggest strategies to prevent problems of using computers. In additon, it illustrated characteristics and functions of softwares designed to analyze qualitative data to help researchers choose the program wisely. It also demonstrated precise functions and procedures of the NUDIST program which was designed to develop a conceptual framework or grounded theory from unstructured data. Major advantage of using computers in qualitative research is the management of huge amount of unstructured data. By managing overloaded data, researcher can keep track of the emerging ideas, arguments and theoretical concepts and can organize these tasks mope efficiently than the traditional method of 'cut-and-paste' technique. Additional advantages are the abilities to increase trustworthiness of research, transparency of research process, and intuitional creativity of the researcher, and to facilitate team and secondary research. On the other hand, disvantages of using computers were identified as worries that the machine could conquer the human understanding and as probability of these problems. it suggested strategies such as 1) deep understanding of orthodoxy in analytical process. To overcome philosophical and theoretical background of qualitative research method, 2) deep understanding of the data as a whole before using software, 3) use of software after familiarity with it, 4) continuous evaluation of software and feedback from them, and 5) continuous awareness of the limitation of the machine, that is computer, in the interpretive analysis.

• 한국지능시스템학회논문지
• /
• 제1권1호
• /
• pp.9-25
• /
• 1991

This tutorial paper has been written for biologists, physicians or beginners in fuzzy sets theory and applications. This field is introduced in the framework of medical diagnosis problems. The paper describes and illustrates with practical examples, a general methodology of special interest in the processing of borderline cases, that allows a graded assignment of diagnoses to patients. A pattern of medical knowledge consists of a tableau with linguistic entries or of fuzzy propositions. Relationships between symptoms and diagnoses are interpreted as labels of fuzzy sets. It is shown how possibility measures (soft matching) can be used and combined to derive diagnoses after measurements on collected data. The concepts and methods are illustrated in a biomedical application on inflammatory protein variations. In the case of poor diagnostic classifications, it is introduced appropriate ponderations, acting on the characterizations of proteins, in order to decrease their relative influence. As a consequence, when pattern matching is achieved, the final ranking of inflammatory syndromes assigned to a given patient might change to better fit the actual classification. Defuzzification of results (i.e. diagnostic groups assigned to patients) is performed as a non fuzzy sets partition issued from a "separating power", and not as the center of gravity method commonly employed in fuzzy control. It is then introduced a model of fuzzy connectionist expert system, in which an artificial neural network is designed to build the knowledge base of an expert system, from training examples (this model can also be used for specifications of rules in fuzzy logic control). Two types of weights are associated with the connections: primary linguistic weights, interpreted as labels of fuzzy sets, and secondary numerical weights. Cell activation is computed through MIN-MAX fuzzy equations of the weights. Learning consists in finding the (numerical) weights and the network topology. This feed forward network is described and illustrated in the same biomedical domain as in the first part.

• 한국진공학회:학술대회논문집
• /
• 한국진공학회 2011년도 제41회 하계 정기 학술대회 초록집
• /
• pp.198-198
• /
• 2011

Organocatalysis is a relatively new and popular area within the field of chiral molecule synthesis. It is one of the main branches of enantioselective synthesis with enzymatic and organometallic catalysis. In recent years, immense high quality studies on catalysis by chiral secondary amines were reported. These progresses instantly led to different organocatalytic activation concepts, so thousands of researchers from academia and the chemical industry are currently involved in this field and new ideas, new approaches, and creative thinking have been rapidly emerged. Organocatalysts, some of which are natural products, appear to solve the problems of metal catalysts. Compared to metal-based catalysis, they have many advantages including savings in cost, time, and energy, easier experimental procedure, and reduction of chemical waste. These benefits originate from the following factors. First, organocatalysts are generally stable in oxygen and water in the atmosphere, there is no need for special equipments or experimental techniques to operate under anhydrous or anaerobic conditions. Second, organic reagents are naturally available from biological materials as single enantiomers that they are easy and cheap to prepare which makes them suitable for small-scale to industrial-scale reactions. Third, in terms of safety related catalysis, small organic molecules are non-toxic and environmentally friendly. Therefore, the purpose of this research is to develop novel synthetic methods and design for various organocatalyst. Furthermore, it is expected that these organocatalysts can be applied to a variety of asymmetric reactions and study the transition state of these reactions using a metal sulface. Here, we report the synthesis of unprecedented organocatalysts, proline and pyrrolidine derivatives with quaternary carbon center.

• 대한수학교육학회지:학교수학
• /
• 제9권1호
• /
• pp.65-97
• /
• 2007

본 연구에서는 수학적 모델링에 관한 주제로 국내 학회지에 실린 총 11편의 선행 연구 및 22편의 석사학위논문을 대상으로 그 밖의 국내외 문헌을 참조하여 수학적 모델링에 관한 이해를 도모하고자 하였다. 우선, 수학적 모델링의 의미와 과정을 살펴보고, 수학적 모델링과 문제해결의 관계를 살펴보았는데, 그 결과 수학적 모델링의 중요성을 부각시키기 위한 노력 내지 의도 하에 문제해결의 진정한 의미가 다소 축소되고 간과되는 경향이 있음을 알 수 있었다. 이어서 수학적 모델링의 주요 특징을 탐색해 보고, 수학적 모델링 문제와 문제해결에서 정의되는 문제의 관계를 살펴보았는데, 이는 문제해결에서의 수학 외적 소재를 수반하는 문제의 의미 내지 범주가 보다 분명히 밝혀질 때 두 문제 사이의 범주 및 관계도 정립될 수 있을 것으로 나타났다. 결과적으로, 본 연구에서는 문제해결 문제와의 비교를 떠나 수학적 모델링 문제 자체가 지니고 있는 특징을 간추려 제시하였다. 끝으로, 수학적 모델링 과정의 전반적인 이해를 돕기 위하여 폴리아의 문제해결 과정과 연계지어 간략히 제시하였다.

• 대한수학교육학회지:수학교육학연구
• /
• 제24권2호
• /
• pp.145-164
• /
• 2014

본 연구는 수학에 대한 자신감의 개념을 탐색하고, 우리나라 학생들의 수학에 대한 자신감의 특성을 분석하는 것을 목적으로 한다. 먼저, 자신감과 유사 개념으로 사용되고 있는 자아개념, 자아효능감에 관한 문헌을 고찰하여 세 가지 개념의 정의 및 개념 간 관계를 규명해보았다. 수학에 대한 자신감은 수학을 잘 할 수 있다는 자신의 능력에 대한 신념이며, 수학에 대한 자아개념이나 수학에 대한 자아효능감과는 개념적으로 차이가 있음을 밝혔다. 더불어, TIMSS 2003, 2007, 2011에 걸쳐 축적된 학생 설문 자료를 바탕으로 최근 우리나라 초등학교 및 중학교 학생들의 수학에 대한 자신감과 그 변화 추이를 분석하고, 자신감에 영향을 미치는 요인들을 탐색해보았다. 분석 결과 우리나라 학생들의 자신감은 초등학생에 비해 중학생이 더 낮았고, 수학 성취도, 수학에 대한 흥미와 같은 변인이 영향을 미치는 것으로 나타났다. 또한, 수학수업에서 활용하는 평가 형태 중에서는 학생들이 진행중인 과제에 대한 평가가 자신감에 정적인 영향을 미치는 것으로 나타났다.

• 대한수학교육학회지:학교수학
• /
• 제18권1호
• /
• pp.215-229
• /
• 2016

본 연구는 무한 등비급수의 합을 구하는 Archimedes의 상승적 아이디어를 소개하고 분배 상황을 이용하여 이를 은유적으로 확장하였다. Archimedes의 아이디어에 대한 은유적 확장 모델은 현행 고등학교 수준에서 강조되는 극한 개념의 동적 측면에 상보적으로 작동할 수 있는 정적인 특징을 갖고 있으며 중학교 수준에서 $0.999{\cdots}=1$임을 설명할 때 현행 교과서에서 대수적 무한 유추에 기반하여 유도하고 있는 식 $0.999{\cdots}=9/(10-1)$에 새로운 의미를 불어넣을 수 있는 장점이 있다. 실제로 중학교 2학년 영재학생들을 대상으로 한 본 연구자의 수업에서 은유적으로 확장된 모델은 구체적인 분배 상황을 통해 위의 식을 문맥화 함으로써 학생들의 흥미를 유발하였고 창의성과 오류를 이끌어 낼 수 있는 학습 환경을 제공하였다.

• 한국수학교육학회지시리즈C:초등수학교육
• /
• 제5권1호
• /
• pp.21-39
• /
• 2001

This study is to develop assessment framework, test items and questionnaire for the National Assessment of Educational Achievement(NAEA), which administered in the elementary and secondary schools across the country in this year(2000). According to the first year study result of the NAEA, the test was administered in two core subjects, Mathematics and Social Studies. In this study, test items and sets of questionnaire and administered pretest were developed in the last year. In this year, the NAEA was administered with the adjusted test items and questionnaires and the results was analyzed and would be reported to the public. NAEA was developed on the basis of national curriculum, especially of the nature and objectives of subject curriculum in Mathematics (and also Social Studies). In the framework of assessment, we set up four differentiated levels of student achievement:‘under basic’,‘basic’,‘intermediary’, and ‘advanced’. Here ‘the intermediary level’means the level of educational achievement in which students can understand average content of subject curriculum. ‘Advanced level ’indicates the level of educational achievement in which students master all the content of subject curriculum and apply basic concepts and principles to a variety of situations. ‘The basic level’means the level of educational achievement in which students do not achieve the intermediary level. Students who do not understand average content of subject curriculum are classified as belonging to the basic level. Finally, this study would explain how to administer and analyze the test int he future. The test result was analyzed to report students’s educational achievement according to regions, content area, behavioral characteristics, and etc. This study would show how to report test results and how to set up student’s academic achievement.

• 한국실내디자인학회논문집
• /
• 제15권6호
• /
• pp.159-171
• /
• 2006

As the increase in quantity of apartments has been stable, consumers' needs in housing quality become more diverse. According to the changes in the tendency of residents, construction companies has developed brands of apartment buildings with the concepts of LOHAS, well-being, ergonomics, ubiquitous. However, these trends has been focusing on the Capital area, and becoming fixed and typical in the way of delux quality, large-sized houses and a healthful residence. For that reason, this research is about survey on the needs of the local apartment residents, especially in Daegu. This analysis of their preferences will furnish basic data and offer possible interior plans to building companies making inroads into the Daegu apartment market. This research is based on the questionnaire forms which had been collected for two months(in Aug.-Oct.) of 2005 in Daegu and the amount of the samples is 135. All of them are the residents of the apartments where they moved in after 2000. The contents of this research include the evaluation of plane composition and practicality, interior finishing and design, and spaces for items. The results of this research show that the interior design and finishing materials of apartments in Daegu should be improved and the drainage and uncleanness of bathroom also need to be considered, much like the results of Seoul area. However, regarding the higher age range and life stage, the bedroom 2 needs to be planned for a study and the design of livingroom is prefered to be widely open. Besides, comparing with those in Seoul, the residents in Daegu demand that spaces for things (especially those in secondary kitchen and dress room) be more organized and convenient.

• 대한지리학회지
• /
• 제39권6호
• /
• pp.971-983
• /
• 2004

학생들의 지리적 이해와 개념 발달 그리고 기능 습득 등이 복합적인 배경 변인의 영향을 받고 있음이 점점 더 분명해지고 있다. 복합적인 배경 변인 중에서 성별 차이는 오랫동안 지리학자와 심리학자들의 관심 대상이었다. 최근 지리적 지식과 공간적 능력에서 나타나는 성별 차이는 성적 고정관념을 강화하는 사회문화적 요인들에서 기인한 것이라는 주장이 제기되고 있다. 지리 학습에 영향을 미치는 주요 변인으로 고려되는 성별 차이는 단순한 차이 그 자체보다는. 다면적인 젠더에 대한 과정 변인으로 진술되고 탐구되는 것이 바람직하다. 이에 본 연구는 성별 차이와 젠더 특성이 지리 수업에 미치는 영향을 이론적으로 고찰하고. 실제 중학교 지리 수업에서 이루어지는 학습 지역과 학습 내용 그리고 학습 활동에 대한 성별 차이와 젠더 특성을 조사하였다. 연구 결과, 지리 학습에서는 성별 차이보다는 유사성이 더 많이 나타났으며. 젠더별 특성이 다양하게 나타났다. 이는 학습의 개인차를 고려하는데 적절한 것은 단순한 성별 차이보다는 좀더 구체적이고 다면적인 젠더 특성임을 시사한다. 더불어 이러한 특성들이 학습 효율성을 장려하는데 어떠한 영향을 미치는지에 대한 설명이 이루어지면, 지리 교육을 증진하는데 직접적인 도움이 될 것이다.

• 한국정보시스템학회지:정보시스템연구
• /
• 제19권2호
• /
• pp.23-36
• /
• 2010

The focus of this study is to analyze between South Korea and China in terms of diversity in Management Information Systems research. As a result, there is herding phenomenon regarding researches in both of the countries compared to other previous studies. There also seemed to be lack of in-depth study of basic theories and connection to related field of study considering the broad topics of management information, unlike other international journals that pursue diversity in control referencing various methodologies, analysis units and many citations. Therefore, both South Korea and China should stabilize theoretical base of MIS through securing independent field of MIS along with founding the fundamentals by searching in diversified fields, methodologies and analysis units with focused topics. The upshot here is that with respect to diversity in MIS from both countries, to alleviate herding phenomenon, enforcing accuracy of data collection and reducing convenience pursuit should be implemented. Also as criteria to select a topic, different kinds of consulting concepts and taking social issues into consideration that helps tool development and analysis power should be done. Through varied methodologies, tool development and analysis power should be assisted and analysis unit should be shifted to organization unit for Korea and team or individual for China only to augment the accessibility. As a limitation for the paper is that the data used in this analysis is secondary data. In addition, although time period used in both countries were the same, object of analysis had homogeneity in Korean case while Chinese one having heterogeneity from 19 different journals. For the future studies, multicultural comparison or time series analysis and their comparison in deeper approach with regard to object of analysis and methodologies can contribute to further MIS diversity.