• 제목/요약/키워드: Chance

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초등수학 교과서의 자료와 가능성 영역에 제시된 발문의 유형과 기능 분석 (An analysis of types and functions of questions presented in data and chance area of elementary school mathematics textbooks)

  • 도주원
    • 한국수학교육학회지시리즈A:수학교육
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    • 제60권3호
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    • pp.265-279
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    • 2021
  • 본 연구에서는 초등수학 교과서의 자료와 가능성 영역에 제시된 발문을 학년군별로 비교 분석하여 발문의 특성을 파악하였다. 연구 결과 학년군별로 교과서에 제시된 발문의 유형 및 기능별 출현 비율이 서로 다르게 나타났으며, 이는 학년군별 학습 내용 및 학년군의 특성과 관련이 있는 것으로 보인다. 또한 발문의 기능은 발문의 유형과 관련이 있음을 알 수 있다. 본 연구의 결과는 초등수학의 자료와 가능성 영역 지도 시 발문 사용에 대한 교수·학습상의 기초를 제공하여 발전적인 방향으로 통계교육이 이루어지는데 기여할 수 있을 것이다.

비만 여고생의 건강통제위 성격과 섭식행동 (Health Locus of Control and Eating Behavior of Obese High School Girls)

  • 문선영;김신정;김숙영
    • 대한간호학회지
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    • 제31권1호
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    • pp.43-54
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    • 2001
  • The purpose of this study was to investigate the relationship between health locus of control (HLOC) and the eating behaviors in obese high school girls. The sample consisted of 262 obese high school girls in Seoul and Kangwon-Do. The results of this study were as follows: 1. The average scores of HLOC were HLOC- Internal; 4.06, HLOC-External; 2.47, and HLOC-Chance; 2.15. 2. The average scores of eating behavior factors were Disinhibition ; 2.91, Hunger ; 2.73, Dietary Restraint ; 2.55. 3. The HLOC-Internal and eating behavior (dietary restraint, disinhibition and hunger) were correlated positively. The HLOC- Chance and hunger was correlated positively. But HLOC-Chance and other eating behavior factors (dietary restraint & disinhibition) were not correlated in the level of statistical significances. The HLOC-External and eating behavior (dietary restraint, disinhibition and hunger) were correlated positively. 4. There was not a significant difference in HLOC depending on the existence of an obese sibling. There were significant differences in HLOC-Internal and HLOC- External depending on the evaluation of one's body figure. 5. There were significant differences in disinhibition and hunger depending on the existence of obese sibling. Also, there were significant difference in dietary restraint according to self perception of who is obese or not (t=3.342, p=.001). This study has shown a correlation between HLOC and eating behavior. As a result of these findings, clinical and school nurses should be involved in management and counselling obese girls concerning individual health locus of control and eating behavior.

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초등학생들의 창의적 과학 문제 해결 과정에서 나타나는 시각화 활동 분석 (Analysis of Elementary Students' Visualization Process of Creative Problem Solving in Science)

  • 김지수;장신호
    • 한국초등과학교육학회지:초등과학교육
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    • 제36권1호
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    • pp.73-84
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    • 2017
  • Cultivating creativity is one of the goals in science education. Previous studies report that students use visualization while they solve the creative science problem and it looks helpful to make them think more. For this study three $6^{th}$ grade students were selected in the consideration of pre-test through the qualitative think-aloud method. The results show that even though students have many ideas in planning stage in problem solving, they appeared to visualize familiar and empirical ideas at first. So if teachers want to watch another creative ideas, they tended to give enough time to visualize many ideas. Students drew lines, circles, "X"marks to select or remove information during their problem solving works. They said these marks seem to be useful to understand question. However, removal marks sometimes turn out to block another chance to re-think. Also students did not have a chance to reflect what they did. It means that they lose the chance to do convergent thinking. The implications of this study include the importance of students' visualization works to facilitate their creative ideas and support their problem solving strategies. In this study, we discuss the meaningful messages for teachers who construct science classroom for creativity.

조정의 성공요인 : 노사분쟁의 경우 (Success Factors of Mediation: Labor Disputes)

  • 김태기
    • 노동경제논집
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    • 제26권1호
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    • pp.53-73
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    • 2003
  • 본 연구는 노동부가 2000년에 실시한 노동위원회 조정서비스의 문제점 및 개선방향에 대한 설문조사 결과를 활용하여 분쟁조정의 성공을 좌우하는 요인이 무엇인지를 분석한다. 분석 결과를 보면 업종이 제조업이거나 노동조합이 민주노총에 소속되어 있는 경우 조정의 성공 가능성이 떨어지는 것으로 나타났다. 조정을 받았던 경험이 많은 사업체일수록 노사 당사자들의 자세가 조정 과정에서 합의에 우호적인 방향으로 바뀔 가능성은 낮고 조정안을 수락하지 않을 가능성은 높은 것으로 나타났다. 노사 당사자들이 조정위원이 공정하고 전문성을 갖추고 있다고 인식할수록 조정회의 시간이 길어질수록 조정이 성공할 가능성이 올라간다.

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수질학적 관점에서의 수문모델 유출량 보정 방법 평가 (Evaluating Calibration Methods of Stream Flow for Water Quality Management)

  • 전지홍;최동혁;김정진;김태동
    • 한국물환경학회지
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    • 제25권3호
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    • pp.432-440
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    • 2009
  • The effect of selecting hydrologic item for calculating objective function on calibration of stream flow was evaluated by Hydrologic Simulation Porgram-Fortran (HSPF) linked with Model Independent Parameter Optimizer (PEST). Daily and monthly stream flow and flow duration were used to calculate objective function. Automated calibration focused on monthly stream was proper to analyze seasonal or yearly water budget but not proper to predict daily stream flow or percent chance flow exceeded. Calibration result focused on flow duration is proper to predict precent chance flow exceeded but not proper to analyze water budget or predict peak flow. These results indicate that hydrologic item calculated for objective function on calibration procedure could influence calibration results and watershed modeler should select carefully hydrologic item for the purpose of model application. Current, the criteria of stream flow of Korean TMDL is generated based on percent chance flow exceeded, so flow duration should be included to calculate objective function on calibration procedure for the estimation of criteria of stream flow using hydrologic model.

류마티스 관절염 환자의 보완대체요법 이용에 대한 예측 요인 (Predictive Factors for Use of Complementary·Alternative Therapies in Rheumatoid Arthritis Patients)

  • 이은남;손행미
    • 성인간호학회지
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    • 제14권2호
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    • pp.184-193
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    • 2002
  • Purpose: The purpose of this study was to assess the characteristics of the user of complementary alternative therapies(CAT) and to identify the important predictive factors associated with them. Method: This study included 142 patients attending outpatient rheumatology clinics of D Hospital in Busan between July and August in 2001. The multiple logistic regression model was developed to estimate the likelihood of user or nonuser of CAT. Result: The duration of illness and chance score of health locus of control were found to be significant factors through the estimated coefficients of using CAT. Duration of illness is longer and chance score of health locus of control is higher in patients who have used CAT in past than that of nonuser. When the model performance was evaluated by comparing the observed outcome with predicted outcome, the model correctly identified 95% of user of CAT and 31% of nonuser. Conclusion: In this survey, duration of illness and chance score of health locus of control are found to be significant factors in predicting utilization of CAT. Nurses who care for rheumatoid arthritis patients should take consideration into health locus of control in planning health education programs.

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COHEN의 합치도의 두 가지 역설을 해결하기 위한 새로운 합치도의 제안 (A New Measure of Agreement to Resolve the Two Paradoxes of Cohen's Kappa)

  • 박미희;박용규
    • 응용통계연구
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    • 제20권1호
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    • pp.117-132
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    • 2007
  • 두 평정자가 있는 이차원 분류표에서 우연에 의한 합치 비율을 보정한 Cohen의 합치도($\kappa$)는 문제점이 있는 측도로 알려져 있다. $\kappa$는 평정자의 분류 비율(주변확률)에 매우 민감하고, 합치도로서의 조건도 만족하지 못한다. 그러나 $\kappa$를 비롯한 기존 합치도들은 주변확률이 0.5에 가까울 때 안정되며 비슷한 값을 갖는다. 본 연구에서는 이차원 분류표의 불균형적 주변분포를 보정함으로써 $\kappa$의 역설을 해결하는 새로운 합치도 H를 제안한다. 또한 예제를 통해 기존의 합치도들과 제안된 합치도를 비교한다.

디지털게임에 나타나는 알레아의 세 층위 (Three Types of Alea Appearing in Digital Games)

  • 임해량;이동은
    • 한국게임학회 논문지
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    • 제19권4호
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    • pp.65-76
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    • 2019
  • 국내 알레아 연구는 사행성 담론에 한정된 채, 우연성의 놀이학적 의미와 기능은 주목받지 못하고 있다. 알레아 연구가 사행성 규제 법안을 중심으로 진행될 경우 알레아는 '도박' 개념에 종속되어 우연성에서 창발되는 순기능이 무시된 채 부정적인 의미로 평가절하되는 한계를 갖게 된다. 따라서 본 연구는 카이와가 주창한 알레아 개념의 계보를 따라 '우연'과 '놀이'의 의미와 기능을 분석함으로써 알레아가 가진 세부적 층위들을 그레마스 기호사각형으로 구조화하고 이를 디지털 사례에 적용해보고자 한다. 본 연구는 알레아의 세부 층위를 주술적 알레아, 시스템적 알레아, 영웅적 알레아 세 가지로 나누었으며 이를 디지털 사례인 CCG 하스스톤에 적용해 보았다. 이를 통해 사행성 도박과 알레아의 스펙트럼적 관계를 파괴하고 다양한 성질의 알레아를 구분해 냄으로써 우연놀이의 순기능을 재발견하고자 한다.

자율주행 버스의 주행 안전을 위한 차량 간 통신 및 모델 예측 제어 기반 종 방향 거동 계획 (Proactive Longitudinal Motion Planning for Improving Safety of Automated Bus using Chance-constrained MPC with V2V Communication)

  • 조아라;유진수;곽지섭;권우진;이경수
    • 자동차안전학회지
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    • 제15권4호
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    • pp.16-22
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    • 2023
  • This paper presents a proactive longitudinal motion planning algorithm for improving the safety of an automated bus. Since the field of view (FOV) of the autonomous vehicle was limited depending on onboard sensors' performance and surrounding environments, it was necessary to implement vehicle-to-vehicle (V2V) communication for overcoming the limitation. After a virtual V2V-equipped target was constructed considering information obtained from V2V communication, the reference motion of the ego vehicle was determined by considering the state of both the V2V-equipped target and the sensor-detected target. Model predictive control (MPC) was implemented to calculate the optimal motion considering the reference motion and the chance constraint, which was deduced from manual driving data. The improvement in driving safety was confirmed through vehicle tests along actual urban roads.