• 제목/요약/키워드: Reasonable explanation

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초등학생의 신체화 증상에 관한 영향요인 (Factors Influencing the Somatization of Elementary School Students)

  • 최연희;정창숙;유준옥;형나겸
    • 한국보건간호학회지
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    • 제31권3호
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    • pp.505-517
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    • 2017
  • Purpose: This study was conducted to investigate factors affecting the somatizationof 4th grade elementary school students in South Korea. Methods: The research used cross-sectional data of 2,031 first grade elementary school students that participated in 4th-year Korean Children and Youth Panel Survey (KCYPS). Data analysis, which included descriptive statistics, t-tests, one-way ANOVA, Pearson's correlation, and hierarchical regression,was performed using SPSS/WIN 23.0. Results: Aggression (r=0.60, p<.001) and depression (r=0.69, p<.001) showed significant positive correlation, while affection (r=-0.22, p<.001), reasonable explanation (r=-0.28, p<.001), peer relationship (r=-0.06, p=.001), and teacher relationship (r=-0.20, p<.001) were negatively correlated with somatization of elementary school students. Hierarchical regression analysis revealed that depression (${\beta}=0.52$, t=25.52, p<.001), aggression (${\beta}=0.27$, t=13.30, p<.001), reasonable explanation (${\beta}=0.05$, t=2.99, p=.002), and affection (${\beta}=0.04$, t=2.13, p=.031) were significant predictors of somatization. This regression model has an explanatory power of 52.8%. Conclusion: To reduce somatization, it is necessary to develop a therapeutic intervention to change student emotions into a positive coping mechanism and strategy. The results of this study will contribute to the development of programs and practices for healthy school life.

식스시그마의 1.5σ 이동에 대한 소고 (A Note for 1.5σ Shift of Six Sigma)

  • 박종훈
    • 산업경영시스템학회지
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    • 제45권1호
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    • pp.31-40
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    • 2022
  • Six Sigma is a philosophy and systematic methodology for quality improvement. It encourages continuous quality improvement efforts to achieve the ideal goal of 6σ. Sigma(σ) is a statistic representing the standard deviation of the normal distribution, and 6σ level means a level where the tolerance of the specification is six times the standard deviation of the process distribution. In terms of the defective rate, the 6σ level achieves the 0.002 defectives per one million units. However, in the field, the 6σ level is used in the sense of achieving 3.4 defects per one million opportunities, which shows a large gap from the 6σ level in the statistical viewpoint. This is because field practitioners accept a 1.5σ shift of the mean of process when calculating the defective rate under sigma level. It said that the acceptance of 1.5σ shift of the mean is from experience, but there is no research or theoretical explanation to support it logically. Although it is a non-scientific explanation based on experience, considering that there has been no objection to the 1.5σ shift for a long time and it is rather accepted, it is judged that there is a reasonable basis for the 1.5σ shift. Therefore, this study tries to find a reasonable explanation through detective power of control chart via the run-rules to the 1.5σ shift empirically recognized by practitioners.

Liquidity Risk and Asset Returns : The Case of the Korean Stock Market

  • Choe, Hyuk;Yang, Cheol-Won
    • 재무관리연구
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    • 제26권4호
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    • pp.103-140
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    • 2009
  • This paper investigates various channels through which liquidity can affect stock returns and examines whether behavioral explanation for liquidity risk is reasonable. First, we examine whether liquidity level (average liquidity) plays a significant role in determining asset returns. The result is consistent with the hypothesis that a stock with higher average illiquidity will have a higher expected return. Second, we focus on the argument that liquidity has a non-diversifiable systematic component. If systemic liquidity has a different impact across individual securities, a stock that is more sensitive to systematic liquidity will have a higher expected return. The results of various tests are inconsistent with each other, not completely supporting the argument. Finally, the intra-market tests in Korea support the behavioral explanation for the liquidity premium, and the effect is stronger in the liquidity level than in the liquidity beta related to systematic liquidity.

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통계적 변이성 사고 요소 간의 관계 연구 (The Relationships among Components of Thinking related to Statistical Variability)

  • 고은성
    • 대한수학교육학회지:학교수학
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    • 제14권4호
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    • pp.495-516
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    • 2012
  • 본 연구에서는 통계적 변이성 사고 요소를 변이성 인식, 변이성 설명, 변이성 제어, 변이성 모델링, 표본의 이해, 표집분포의 이해로 구분하고, 이들 요소 사이의 관계를 조사한다. 연구결과 통계적 변이성 사고 요소를 변이성 인식, 변이성 설명, 변이성 제어, 변이성 모델링, 표본의 이해, 표집분포의 이해로 구분하는 것이 타당함을 확인하였다. 상관관계 분석결과 변이성 인식, 변이성 설명, 변이성 제어에 대한 변이성 모델링, 표본의 이해, 표집분포의 이해의 상관계수가 유사한 것으로 나타났는데, 이러한 사실을 바탕으로 표집의 이해를 변이성 모델링, 표본의 이해, 표집분포의 이해를 포괄하는 잠재변수로 설정할 수 있었다. 또한 변이성 인식과 변이성 제어는 표집의 이해에 영향을 미치는 것으로 나타난 반면, 변이성 설명은 표집의 이해에 영향을 미치지 않는 것으로 나타났다.

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폴리프로필랜 필름의 부성지향특성에 관한 연구 (A Study On the Negative Resistance Characteristics of Polypropylene Films)

  • 김봉협;김용주;류강식;김귀열;이준욱
    • 대한전기학회논문지
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    • 제36권6호
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    • pp.418-423
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    • 1987
  • In the course of the investigation to the field dependent electrical conducation mechanism in polypropylene, an abnormal conduction phenomena such as voltage controlled negative resistance charateristics has been observed at the junction of two regions charateriged by schottky effect and space charge effect respectively. This abnormal characteristics was observed initially about 110MV / m of the field strength and at 25 , however, the field strength where it observed was decreased and the apparent feature of negative charateristics was less pronounced as increasing ambient temperature. Although the observations of analogous characteristics in other materials such as polyethylene, polymethylemethactylate, and polystyrene have already been reported together with plausible explanation by Toureille and others, however, it was found that the proposed concept by those authors was little use to the present observations for quantitative discussions. Accordingly we tried to adapt another conceptual discussion based on Gibbons's formulation pertaing to the saturatio trend of the field dependent drift velocity of carriers towards the thermal velocity corresponding to the ambient temperature so that the quantitative explanatio on the observed facts has been succeeded to some estent of reasonable acceptance.

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"소문.생기통천론(素問.生氣通天論)"의 "인어기(因於氣)"에 대한 연구(硏究) (A Study on "Due to pathogenic Gi(因於氣)" in "Somun(素問).Saenggitongcheonron(生氣通天論)")

  • 김선형;방정균
    • 대한한의학원전학회지
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    • 제22권3호
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    • pp.291-297
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    • 2009
  • It is difficult that we understand "Due to pathogenic Gi(因於氣)" in "Somun(素問) Saenggitongcheonron(生氣通天論)", because that is too many comments. We are to interpret Gi(氣) as Wind(風) or Anger(怒). However, the most reasonable explanation is to Yang-Gi weakness(陽氣虛). In other words, pathogenic Gi of four seasons should violate Yang-Gi(陽氣) and become a Yang-Gi weakness. Sayu(四維) can be interpreted as limbs[四肢], the last month of each of the four seasons[四季], four seasons[四時]. It is a logical view of the four seasons. This meaning is that it was already Yang-Gi weakness state by pathogenic-Gi of four seasons which violate Yang-Gi(陽氣), again the pathogenic Gi of four seasons violate Yang-Gi. As a result Yang-Gi will drain.

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전통발효 저장식품의 용기형태와 그 재료에 관한 연구 (A Study on Form of Vessel for Traditional Fementation Storage Foods and that Materials-Concentrated on Soy Bean paste)

  • 김홍산;권일현
    • 디자인학연구
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    • 제14권
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    • pp.233-243
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    • 1996
  • Our Country are called as a suzerain State of fermentation food, and preservative Technique was developed, because the specific character and the form of pottery were the best superior utensil of storage. The form couldn't give an explanation with scientifically, but we have used it for a few thousand years, which must get transformed from most compatible and reasonable form of fermentation. At present, a pottery was disappeared by the growth of the industrial society, and even the scientific form concealed it looks. For that reason, we apply the form into looks of a modernistic mechanism, and it intends to suggest a new direction to better the pottery of a formentation food.

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ESPM을 이용한 전력가격의 결정 (The Pricing of Electricity through the ESPM)

  • 이석규;변영덕
    • 한국경영과학회지
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    • 제27권4호
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    • pp.11-27
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    • 2002
  • This paper is aimed at surveying the method that supports logical and theoretical back grounds of electricity service pricing, to investigate whether the ESPM can reflect comprehensively the various interests of parties and persons concerned with electricity supply and demand, and analyzing the practical applicability of the model in short-term perspectives. The major findings of this study can be summarized as fellows. First, the ESPM explains what process the equilibrium price is attained through, which is the essential concept and object in evaluating the value of public enterprises or utilities and the price of electricity Second, the ESPM provides the logics and methods that can objectify the discrete price by each electricity user. Third, the ESPM presents theoretical logics and practical methods that can calculate the basic price and the variable price per electricity unit which are key concepts in the two-part tariff. Fourth, the ESPM has powerful practical applicabilities in the reasonable electricity pricing and in the explanation for the balance between parties and persons interested with electricity supply and demand.

알루미늄 소결재를 이용한 흡음 특성 연구 (Study of sound absorption characteristics using the sintered aluminium plate)

  • 노대호;김재수;윤진국;강현주;신종철;김원용
    • 한국소음진동공학회:학술대회논문집
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    • 한국소음진동공학회 2002년도 춘계학술대회논문집
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    • pp.1071-1076
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    • 2002
  • The purpose of this paper is to examine sound absorption characteristics of sintered Al(aluminum) plate. Comparison between experiment and theoretical analysts by using empirical formula are made. Based on comparison. it is found that Voronina model gives more reasonable explanation for sound absorption characteristics of sintered Al plates. Effect of air gap with varying the thickness of plates are also investigated, which concludes that the air gap generally increase absorption but for too thick thickness of Al plates. Al plates with air gap shows 0.85∼0.9 of NRC(Noise Reduction Coefficient) measured in reverberation room. which is comparable to glass wool. Comparison between normal and random Incident absorption shows that random incident absorption is higher than normal incident absorption.

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선로연변 낙석우려개소 점검 및 평가항목에 대한 기초연구 (Fundamental Study on the Items of Check and Evaluation at the Rockfall-worried Railroad Sites)

  • 박영곤;김현기;김경태;신민호
    • 한국철도학회:학술대회논문집
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    • 한국철도학회 2001년도 춘계학술대회 논문집
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    • pp.431-436
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    • 2001
  • Rockfall has long been a serious problem, especially derailment of train running on the track in mountainous regions. The purpose of this study is to suggest the reasonable items of check and evaluation to railroad rock slopes for safe maintenance and management of rockfall-worried railroad sites. Therefore, main and sub items were extracted from the survey of foreign and other authorities' cases and evaluation table (temporary) composed of items classified by important degree was suggested. To evaluate the availability and reasonability of items, statistical analysis based on field investigation namely SMR(Slope Mass Rating) and explanation values was carried.

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