• 한국수학사학회지
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• 제13권2호
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• pp.33-40
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• 2000

This paper deals with the development of early group theory. We first investigate how the concept of abstract groups has emerged as a generalization of groups of substitution(=permutation groups) which strongly relate the theory of equations.

• 한국수학사학회지
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• 제12권2호
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• pp.1-13
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• 1999

Fermat's Last Theorem was proved. In this paper, we survey the historical development of format's Last Theorem and look over the Wolfskehl Prize, Beal's problem, and the abc conjecture.

• 한국수학사학회지
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• 제17권2호
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• pp.9-14
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• 2004

본 논문은 수리철학의 발전과정에 관한 발자취를 조사한다. 자연적으로 암시하는 주된 의문들 중에서 그것들은 수리철학의 변천과정에 의해서 생각되어질 것이다. 수리철학의 역사를 위한, 혹은 더 특별하게 말하자면 철학에 대한 수학의 관계를 위한 명백한 자료는 현재까지 그 수가 많지 않은 편이다. 더욱이 각각의 사색가들에 따른 철학에 대한 수학의 범위, 영향, 관계에 대한 의견차이와 논쟁이 분분하다. 수학과 철학의 발전 과정에서 서로에게 미치는 영향력에 대해서도 강조할 필요가 있다.

• 한국수학사학회지
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• 제27권1호
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• pp.67-79
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• 2014

When imaginary numbers were first encountered in the 16th century, mathematicians were able to calculate the imaginary numbers the same as they are today. However, it required 200 years to mathematically acknowledge the existence of imaginary numbers. The new mathematical situation that arose with a development in mathematics required a harmony of real numbers and imaginary numbers. As a result, the concept of complex number became clear. A history behind the development of complex numbers involved a process of determining a comprehensive perspective that ties real numbers and imaginary numbers in a single category, complex numbers. This came after a resolution of conflict between real numbers and imaginary numbers. This study identified the new perspective and way of mathematical thinking emerging from resolving the conflicts. Also educational implications of the analysis were discussed.

• 한국수학사학회지
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• 제24권4호
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• pp.7-20
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• 2011

이 논문은 18~19세기 조선산학자(朝鮮算學者)의 산서인 홍정하(洪正夏)의 구일집(九一集), 남병길(南秉吉)의 유씨구고술(劉氏勾股術) 요도해(要圖解), 이상혁(李尙爀)의 차근방몽구(借根方蒙求)에 들어있는 구고술(勾股術)을 사용한 방정식 구성을 조사하여 조선산학(朝鮮算學)의 발전과정을 밝혀내는 것을 목적으로 한다. 중인 산학자 홍정하(洪正夏)의 위대한 업적이 제대로 전승되지 못하여 조선산학의 발전에 기여하지 못한 것을 드러낸다.

• 대한의생명과학회지
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• 제27권4호
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• pp.317-322
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• 2021

Diabetes is mainly evaluated by fasting blood sugar. The genetic and environmental factors influence the development of type 2 diabetes. In this study, the relationship between diabetes and family history of diabetes in Koreans was analyzed in consideration of body mass index and age. The study subjects were 4,274 subjects who received a medical examination at a university hospital. The main statistical analysis method was multiple logistic regression analysis. In addition, subjects were analyzed by dividing them by gender and the median of age and body mass index. Diabetes prevalence was 8.9% of all subjects, and subjects with a family history of diabetes were 14.5%. The risk of diabetes was 2.80 times higher in subjects with a family history of diabetes than subjects without a family history of diabetes. In addition, in younger subjects, the risk of diabetes was 3.36 times higher in subjects with a family history of diabetes compared with subjects without a family history of diabetes. In this study, the family history of diabetes was significantly associated with diabetes. The relationship between family history of diabetes and diabetes was slightly higher in the younger group than in the older group. In order to obtain an accurate assessment of the association between diabetes and family history of diabetes, further prospective cohort study in the future is necessary.

• 건축역사연구
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• 제26권3호
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• pp.31-38
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• 2017

The retail store, which appears in various ways of the modern city, is the architectural result that the merchandise is finally delivered to consumers. The relationship between the commerce based on manufacturing and distribution and the retail store as urban architecture can be understood not only from the viewpoint of economics and business administration but also the problem of the formation of urban history and urban organization. The modern industrial development in Korea had been progressed by the state led, as the manufacturing and distribution developed in turn. This social and economic situation influenced the formation of the retail store of the city. This is different from the West, which the development has been conducted together. The cosmetics sales space, which is the subject of this study, has changed in various forms from the 1960s to the 1990s. Cosmetics brand retail shop is a corporate brand-based space, but paradoxically, it has a historical characteristic of urban architecture in that it is branding city street. This specificity of Seoul is unexplained by the development process of the Western and does not exist as a physically huge or special construction sometimes. However, it operates as a urban architecture in Seoul where the complicated.

• 디지털융복합연구
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• 제20권5호
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• pp.309-316
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• 2022

본 연구는 우리 지역의 고대 마한역사문화제에 대한 축제를 독자적으로 개최되고 있는 것을 통합적인 발전 방안을 제시해 보는 데 있다. 또한 마한의 역사, 문화를 통해 관광객 유치와 홍보를 통해 집중적인 마한문화를 알리는데 있다. 그러기 위해서는 독자적으로 열리고 있는 문화제 및 축제를 보다 효율적이고 집중될 수 있는 총합적 방향성과 향후 발전 방안에 도움이 되고 상호 공감대를 형성 할 수 있는 발전 제시와 심층 분석을 통해 미래적인 고대 역사문화를 모색해 보고자 하는 데 있다. 또한 마한문화의 가치를 재조명하고 지역주민 및 전문가들의 실증분석을 통해 차후 통합된 마한문화를 관광지를 발전시키고 관광객 유치를 위해 연구를 통해 현황과 추진방향을 제시하고자 하는데 연구 목적을 두고 있다.

• 대한의생명과학회지
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• 제28권4호
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• pp.284-289
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• 2022

Hypertension is associated with cardiovascular disease. The environmental and genetic factors can cause the development of hypertension. In this study, the relationship between hypertension and family history of hypertension in Koreans was analyzed in consideration of serum fasting blood glucose levels and age. The study subjects were 2,484 subjects who had a medical examination at a university hospital. The main statistical analysis method was multiple logistic regression analysis. Hypertension prevalence was 16.4% of all subjects, and subjects with a family history of hypertension were 23.5%. The risk of hypertension was 2.36 times higher in subjects with a family history of hypertension than subjects without a family history of hypertension. In addition, in the subjects with fasting blood glucose levels more than 120 mg/dL, the risk of hypertension was 4.44 times higher in subjects with a family history of hypertension compared with subjects without a family history of hypertension. The relationship between family history and hypertension was slightly higher in the older group than in the younger group. To assess the association between hypertension and family history, further cohort study is necessary in the future.

• 한국수학사학회지
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• 제19권4호
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• pp.31-62
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• 2006

본 논문에서는 먼저 수학사를 수업에 활용하고자 하는 이론적 근거를 여러 가지 교육적 측면에서 고찰한다. 아울러 수학적 인식에 관한 개인적인 발달과 역사적 발달 사이의 관계를 토대로 수학사 활용의 교육적 유용성을 가장 강력하게 이론적으로 뒷받침하는 역사 발생 원리의 생성, 전개 과정 및 그 의의와 한계 등을 논한다. 또한 여러 가지 측면에서 이론적 근거가 마련되고 있는 수학사 활용에 대한 긍정적인 입장에서 구체적인 방안을 기준과 함께 제시하였다. 다음으로 지금까지 논의된 수학 영재 프로그램 개발의 방향과 실제를 개관하고 수학사를 접목하는 것에 대한 근거를 밝혔다. 마지막으로 수학사 활용의 예를 미분개념의 이해를 중심으로 제시하였다.