• 제목/요약/키워드: K-History

검색결과 11,291건 처리시간 0.034초

한국 근현대 과학사의 초등교육 활용 방안 (Introducing the History of Science in Modem Korea into the Elementary Classroom)

  • 문만용
    • 한국초등과학교육학회지:초등과학교육
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    • 제28권2호
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    • pp.197-212
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    • 2009
  • The purpose of this study is to investigate the possibility of introducing the history of science in modern Korea into elementary education. Although there are many studies on applying a history of science to science education, they do not pay attention to the history of science in modern Korea. I survey research papers on the history of science in modern Korea and science education based on a history of science, and elementary science textbooks in Korea, Japan and the US. When we apply the history of science in modern Korea into elementary education, elementary students will recognize science has close relations to Korean culture and history and they will develop the familiarity with science. I show there are 3 ways using the history of science in modern Korea in elementary education: 1) Applying Korean scientists' research contents to science education, 2) Measures to evaluate Korean scientists correctly, 3) Materials for science education programs for gifted elementary students.

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Family History and Survival of Patients with Gastric Cancer: A Meta-Analysis

  • Oh, Myueng Guen;Kim, Jin Hwa;Han, Mi Ah;Park, Jong;Ryu, So Yeon;Choi, Seong Woo
    • Asian Pacific Journal of Cancer Prevention
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    • 제15권8호
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    • pp.3465-3470
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    • 2014
  • Background: Previous studies have generated conflicting evidence regarding associations between family history and survival after gastric cancer surgery. In this study, we investigated this question using a meta-analysis. Materials and Methods: To identify relevant studies, PubMed and Embase databases were searched up to June 2013. Two reviewers independently assessed search results and data extraction of included studies. Hazard ratios (HRs) and 95% confidence intervals (CIs) for overall survival (OS) were calculated based on fixed- or random-effects models. Homogeneity of effects across studies was assessed using $x^2$ test statistics and quantified by $I^2$. Results: A total of five studies were selected according to the inclusion criteria. The total number of patients included was 2,030, which ranged from 145 to 598 per study. There was no significant difference in OS by family history of cancer (HR=0.83, 95%CIs=0.50-1.38), but subgroup analysis of patients with a first-degree family history of cancer (HR=0.74, 95%CIs=0.60-0.93) and gastric cancer family history (HR=0.56, 95%CIs=0.41-0.76) tended to show better OS in these patients. Conclusions: This meta-analysis suggests that a first-degree family history of cancer or gastric cancer family history is associated with better survival of gastric cancer patients after surgery, after a systematic review of five previous studies. These results can be applied by clinicians when counselling patients regarding their risk of death from gastric cancer. Further study is needed to investigate the underlying mechanism between family history and survival in gastric cancer patients.

응력이력이 사질토의 CPT-DMT 상관관계에 미치는 영향 (Effect of Stress History on CPT-DMT Correlations in Granular Soil)

  • 이문주;최성근;김민태;이주형;이우진
    • 한국지반공학회:학술대회논문집
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    • 한국지반공학회 2010년도 춘계 학술발표회
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    • pp.730-739
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    • 2010
  • Stress history increases in penetration resistance due to the increase in residual horizontal stress of granular soil. This study analyzes the effect of stress history on the results of CPT and DMT from calibration chamber specimen in OC as well as NC state. Test results show that the normalized cone resistance by mean effective stress correlates well with the relative density and the state parameter, whereas the normalized cone resistance with regard to vertical effective stress is a little affected by stress history. The horizontal stress index($K_D$) in DMT more reflects the influence of stress history on granular soil than the dilatometer modulus($E_D$) and cone resistance($q_c$). The $K_D/K_0$, in which the effect of stress history on $K_D$ is compensated by the at-rest coefficient of earth pressure, $K_0$, is related to relative density, state parameter and the normalized cone resistance by mean effective stress. It is also observed that the normalized dilatometer modulus by mean effective stress($E_D/{\sigma_m}'$) is unique correlated with the state parameter, regardless of stress history.

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Forty-five Years of HPM Activities: A Semi-personal Reflection on What I Saw, What I Heard and What I Learn

  • Keung, Siu Man
    • 한국수학사학회지
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    • 제33권5호
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    • pp.261-275
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    • 2020
  • HPM (History and Pedagogy of Mathematics) activities deal with integrating the history of mathematics with the teaching and learning of mathematics. As a teacher of mathematics the author will share his personal experience in the engagement of HPM activities during the past forty-five years with fellow teachers who are interested in such activities and who may wish to know how another teacher goes about doing it.

코호트 기반 조사 공변수 자료의 신뢰도 평가 연구: 원전주변지역주민 역학조사연구 (Reliability of Covariates in Baseline Survey of a Cohort Study: Epidemiological Investigation on Cancer Risk Among Residents Who Reside Near the Nuclear Power Plants in Korea)

  • 배상혁;박보영;이충민;안윤옥
    • Journal of Preventive Medicine and Public Health
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    • 제43권2호
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    • pp.159-165
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    • 2010
  • Objectives: We evaluated the reliability of the possible covariates of the baseline survey data collected for the Epidemiological Investigation on Cancer Risk Among Residents Who Reside Near the Nuclear Power Plants in Korea. Methods: Follow-up surveys were conducted for 477 participants of the cohort at less than 1 year after the initial survey. The mean interval between the initial and follow-up surveys was 282.5 days. Possible covariates were identified by analyzing the correlations with the exposure variable and associations with the outcome variables for all the variables. Logistic regression analysis with stepwise selection was further conducted among the possible covariates to select variables that have covariance with other variables. We considered that these variables can be representing other variables. Seven variables for the males and 3 variables for the females, which had covariance with other possible covariates, were selected as representative variables. The Kappa index of each variable was calculated. Results: For the males, the Kappa indexes were as follow; family history of cancer was 0.64, family history of liver diseases in parents and siblings was 0.56, family history of hypertension in parents and siblings was 0.51, family history of liver diseases was 0.50, family history of hypertension was 0.44, a history of chronic liver diseases was 0.53 and history of pulmonary tuberculosis was 0.36. For females, the Kappa indexes were as follow; family history of cancer was 0.58, family history of hypertension in parents and siblings was 0.56 and family history of hypertension was 0.47. Conclusions: Most of the possible covariates showed good to moderate agreement.

KHistory: 한국사 객관식 문제 자동 생성 시스템 (KHistory: A System for Automatic Generation of Multiple Choice Questions on the History of Korea)

  • 김성원;정해성;진재환;이명준
    • 예술인문사회 융합 멀티미디어 논문지
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    • 제7권1호
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    • pp.253-263
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    • 2017
  • 최근 한국사에 필요성이 증대하고 사람들의 관심이 높아지면서, 한국사 학습을 위한 다양한 어플리케이션들이 등장하고 있다. 이러한 기존의 한국사 학습 어플리케이션은 문제은행 방식으로 사용자들에게 객관식 문제를 제공한다. 하지만 문제은행 방식은 미리 저장된 문제를 가져와 사용함으로써 계속 사용할 경우 중복되는 문제로 인하여 필연적으로 학습효율이 떨어지게 된다. 본 논문에서는 한국사 데이터베이스를 기반으로 한국사 학습문제를 자동적으로 생성하는 시스템인 K-History의 개발과 이를 활용한 한국사 학습 어플리케이션인 한국사 무한도전의 개발에 대하여 기술한다. K-History의 개발을 위하여 한국사 학습 교재를 바탕으로 다양한 한국사 학습 문제를 분석하여 학습문제의 대표 유형을 분류하고, 발견된 유형에 따라 문제를 생성하는 알고리즘을 제안한다. 개발된 한국사 학습문제 생성 기법은 다양한 학습 시스템에 적용되어 문제 생성을 위한 비용을 줄일 수 있으며, 다양하게 생성된 학습문제를 통하여 학습자의 학습효율을 높일 수 있을 것으로 기대된다.

『수세현서(壽世玄書)』의 인용문헌 연구 (A Study of Quotation Medical Text in 『Susehyunseo』)

  • 이선영;김남일;차웅석
    • 한국의사학회지
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    • 제20권2호
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    • pp.70-80
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    • 2007
  • "Susehyunseo" is an unpublished writing of Kimyounghun, a Korean doctor who was active in the Japanese occupation era. This book reveals the details about the traditional medical education of his time rather than his medical opinion because he had written it as a student to check his own medical system. Many representative TKM texts such as "Donguibogam", "Yixueruwen", and "Bangyakhappyun" are mentioned, but many medical documents that are lost now are also mentioned, making it a useful document in understanding the medical education circumstances of those times.

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침(針)과 도(刀)를 이용한 수술법에 대한 문헌 조사 - 외과전문서적을 중심으로 - (A Research of Ancient operation through traditional medical documents)

  • 방성혜;차웅석;김남일
    • 한국의사학회지
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    • 제20권2호
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    • pp.81-86
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    • 2007
  • In ancient East Asia surgical methods existed even before the modern surgical methods were introduced. These surgical methods were mainly used to treat tumor, bruises, and dermatosis. The methods include many techniques such as making incisions in the skin, tell when to operate, and the aftercare following an operation. The traditional ways are not practiced any more due to its being replaced by the anesthesia techniques originating from the West, but the ancient methods can still be found in documents and these methods can be reproduced through such documents. There is a possibility that this ancient method could replace the present day method because of its nature-friendly characteristic as well as its post-operation management.

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수학 교수-학습에서의 동양 수학사 활용에 관한 연구 (A Study on The Application of Oriental History of Mathematics in School mathematics)

  • 양성호;이경언
    • 한국수학교육학회지시리즈A:수학교육
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    • 제49권1호
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    • pp.15-37
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    • 2010
  • In this study, we investigated the application of oriental history of mathematics in school mathematics teaching. We set up three study problems to achieve this purpose. First, we analyze the middle and high school mathematics textbooks and auxiliary books. Second, we survey the mathematics teacher's knowledge and degree of application on history of mathematics. Third, we develop the teaching and learning materials on oriental history of mathematics. We performed three study-methods to settle above study problem. First, we analyzed 24 textbooks and auxiliary books for study problem 1. There were 6 middle school mathematics textbooks and 6 auxiliary books and also 6 high school mathematics textbooks and 6 auxiliary books. We categorized the contents into "anecdote", "systematization", "application of problem", "expansibility of thought", and "comparative of the contents". Second, we surveyed the 78 mathematics teachers's knowledge and degree of application using questionnaire about knowledge and application on history of mathematics. The questionnaire was made up of four types of question; the effect of material about history of mathematics, the understanding of western history of mathematics, the understanding of oriental history of mathematics; the direction of development of teaching material. Third, we exemplified the teaching and learning materials about three categories: "anecdote", "comparative of the contents".