• Title/Summary/Keyword: Causal structure

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Fuzzy Cognitive Map Construction Support System based on User Interaction (사용자 상호작용에 의한 퍼지 인식도 구축 지원 시스템)

  • Shin, Hyoung-Wook;Jung, Jeong-Mun;Cheah, Wooi Ping;Yang, Hyung-Jeong;Kim, Kyoung-Yun
    • The Journal of the Korea Contents Association
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    • v.8 no.12
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    • pp.1-9
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    • 2008
  • Fuzzy Cognitive Map, one of ways to model, describe and infer reasoning relations, is widely used in the field of reasoning knowledge engineering. Despite of the natural and easy understanding of decision and smooth explanation of relation between front and rear, reasoning relation is organized with mathematical haziness and complex algorithm and rarely has an interactive user interface. This paper suggests an interactive Fuzzy Cognitive Map(FCM) construction support system. It builds a FCM increasingly concerning multiple experts' knowledge. Futhermore, it supports user-supportive environment by dynamically displaying the structure of Fuzzy Cognitive Map which is constructed by the interaction between experts and the system.

Mental Health Status of Prisoners in Jail (교정기관 재소자들의 정신건강문제)

  • Suh, Jin-Hwan;Lee, Soo-Jung
    • Korean Journal of Social Welfare
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    • v.43
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    • pp.131-156
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    • 2000
  • It is recognized that one of the major issues in jail management is responding to the needs of a growing number of inmates with mental health problems. The purpose of this study was to assess the nature and severity of mental health problems among inmate population. The mental health status of 1,500 (1,337 responded) inmates of the 30 prisons located in nationwide area was examined using Minnesota Multiphasic Personality Inventory (MMPI). And the scores on MMPI were examined in relation to some offender characteristics such as type of offence, treatment classification, frequence of discipline. The result indicates that the percentage of inmate population with scores over 70 on every sub-categories of the scale is higher than that of general populations reflecting high rate of deviation from average normal mental health. It seems likely that many of inmates are in need of specific mental health treatment services. The nature and severity of mental health problems varies depending on offender characteristics above mentioned. It is also notable that the inmates are heterogeneous in terms of mental health status, and that severe offences such as robbery, assault, and rape or sexual assault are highly related to the scores on 'antisocial' sub category. The study also reveals that there is a relation, if not causal, between mental health problem and frequency of discipline while in prison. Under basis of these findings, this study concludes that a number of inmates in our prison have mental health problems requiring mental health treatment services and suggests five key steps to effectively respond to the prevalence of mental health problems in prison at both the level of the clinical interventions and at the level of system structure and organization. Specially, the importance of collaborative service strategies of the correctional system with mental health systems are underlined.

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A Time-Series Analysis for Emotional Dynamics of Sport Issue and Group Emotion : Focusing on Korean Swimming Player Tae-Hwan Park (스포츠 이슈와 집단 감정의 감정 동학에 대한 시계열 분석 : 수영선수 박태환 사례를 중심으로)

  • Lee, Jong-Kil;Lee, Kong-Joo;Yang, Jae-Sik
    • Journal of Digital Convergence
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    • v.16 no.8
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    • pp.393-400
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    • 2018
  • The purpose of this study was to empirically investigate the emotional dynamics among sport issues, social structure changes and collective behaviors with time-series analysis. For the purpose, the doping scandal of Tae-Hwan Park was chosen and simplified into 10 episodes. And replies and articles on them were analysed by time-series analysis. As the conclusions, first, there was a clear causal relationship between sport issue and sport emotion. Second, sport emotion was a social being which interacting with social process. Third, the sport emotional dynamics was confirmed. With this study, the sport emotion dynamics was empirically verified, but more statistical approaches would be needed for stronger evidences.

Lymphadenitis in experimental murine toxoplasmosis induced by intramuscular injection of tachyzoites (톡소포자충 RH주의 근육내 주입에 의한 마우스 림프절의 조직상)

  • 최원영;남호우
    • Parasites, Hosts and Diseases
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    • v.33 no.2
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    • pp.131-134
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    • 1995
  • When tachyzoites (RH strain) of Toxoplasmo gondii are injected intramuscularly, experimental mice survive up to 7 days, 1-2 days longer than those infected intraperitoneally. We observed sequential histopathological changes in inguinal Iymph nodes after intramuscular injection of tachyzoites to thighs of specific pathogen free (SPF) mice. Initial findings on 1 or 3 days after the injection were reactive germinal centers, distended sinuses and epithelioid cell clusters in cortical and paracortical regions. Later on 5 days after the injection, however, effacement of nodal structure with depletion of cells and focal necrosis were observed . Necrotizing Iymphadenitis in the experimental murine toxoplasmosis suggests the causal relation between T. gondii infection and the human disease.

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Effects of Hotel Employee' Followership on Service Orientation (호텔구성원의 팔로워십이 서비스지향성에 미치는 영향)

  • Lee, Sang-Woo
    • The Journal of the Korea Contents Association
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    • v.13 no.6
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    • pp.450-458
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    • 2013
  • This study aims to suggest implications on hotel HR management through the research on the influence relation with voluntary behaviors that increase the effectiveness of work functions and also hotel employee' perceived followership contributing to achievement of hotel's goals. As study methods to achieve the study objective suggested above, we aim to conduct literature research and empirical study. The data are analyzed by such frequency analysis, validity analysis, reliability analysis, correlation analysis, confirmatory factor analysis, covariance structure analysis. The SPSS 10.1 and AMOS 4.0 for Windows program was used to investigate material. The major finding can be summarized as follow: The analysis on relationship between followership and revealed that 'critical thinking' and 'enthusiasm' dimensions of but 'active participation' dimension of followership has not affected service orientation. The expected effects through this study are like below. First, it is expected that the theory about followership will be extended by verifying the causal relation between followership and internal mental state. Second, it is also expected to be able to suggest alternatives for qualitative improvement of service and emphasis of the importance of hotel employee'.

Structural Analysis of Relations among Adult learners' Participatory Motivation, Program Satisfaction, and Social Capital (성인학습자의 참여동기, 프로그램 만족도, 사회적 자본에 관한 구조적 분석)

  • Kang, Hun
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.19 no.7
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    • pp.354-361
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    • 2018
  • The purpose of this study was to analyze the structural causal relationship between adult learners' participation in lifelong learning, education program satisfaction, and social capital. Also, the study reviews how education program satisfaction variables mediate the relationship between adult learners' participatory motivation and social capital. Subjects included 425 adult learners who participated in lifelong education, and the research hypothesis was verified through structure equation modeling analysis. Results are as follows: First, adult learners' participatory motivation had a positive (+) effect on social capital and education program satisfaction. Secondly, education program satisfaction had a positive (+) effect on social capital. Thirdly, education program satisfaction partially mediated the relationship between adult learners' participatory motivation and social capital and showed a significant indirect effect. This study suggests that it is necessary to develop various programs that can satisfy learners as well as improve social capital, participation motivation, and satisfaction of programs provided by lifelong educational institutions. Based on these results, this study suggests not only the role of lifelong education institutes, but also ways to improve social capital of adult learners within the lifelong education field.

The effects of Dessert Cafe Franchise's Experiential value on Lovemarks and Brand loyalty: Focusing on the Control Variables by Structural Equation Model

  • Kim, Ki-Soo;Kim, Sung-Hun;Cho, Sung-Ho
    • Journal of Distribution Science
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    • v.16 no.10
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    • pp.39-46
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    • 2018
  • Purpose - this research is to examine the relationship between Franchise's experiential value, lovemarks, respectful recognition, and brand loyalty focusing on the control variables. Control variables such as age, occupation, education, monthly income, and kinds of restaurant are included to measure influence on these as well. Research, design, data, and methodology - 500 questionnaires were distributed from June 10th to July 10th, 2017. 225 respondents were totally included in this analysis using SPSS and AMOS program. In order to test hypothesis, factor analysis and reliability verification firstly were employed, and then covariance structure analysis was used. Results - Empirical results are as followed. First, it can be mentioned that the esthetics of dessert cafe is analyzed to have a positive effect on the perception of love and respectful perception. Second, playfulness has a positive effect on perception of love. Third, respect perception has a positive effect on brand loyalty. When variables such as age, occupation, education, monthly income, and restaurant type were used as control variables, only monthly income had a significant effect on respect recognition. This shows that the control variable has a significant effect on the causal relationship of the variables. Conclusions - In summary, it can be stated that it is necessary for marketers to establish marketing strategies in order to boost customers' experiential value such as esthetics of franchise and also to strengthen lovemarks for respectful recognition and brand loyalty.

Effects of employees' perceptions of CSR legitimacy on their citizenship behaviors: The role of moderation by CEO's visionary leadership (기업의 사회적 책임 활동에 대한 정당성 인식이 종업원의 조직시민행동에 미치는 영향에 관한 연구: CEO의 비전적 리더십의 조절효과를 중심으로)

  • Lee, Soojung;Yoon, Jeongkoo
    • Knowledge Management Research
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    • v.13 no.4
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    • pp.31-54
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    • 2012
  • This study examines whether employees' legitimacy perceptions of corporate social responsibility (CSR) affect their organizational citizenship behavior (OCB). It also investigates whether CEO's visionary leadership can moderate this causal relationship. CSR legitimacy is defined in the current study as employees' personal beliefs about the appropriateness of corporate CSR activities. In fact, employees evaluate the appropriateness of CSR activity based on its consistency with corporate philosophy (e.g. corporate mission, vision, and values) which functions as employees' referencial belief structure. If CSR activity is perceived as one of firm's effort to fulfill its mission, vision, and values, which means that espoused theory and theory-in-use of CSR activity are congruent, employees will consider firm's CSR activity as legitimate. If, however, employees think that CSR activity is not congruent with firm's mission, vision, and values, which means that espoused theory and theory-in-use of CSR activity are inconsistent, they will perceive that CSR activity of their firm is not legitimate. In the current study, we propose that employees who perceive that the CSR activity of their firm is legitimate are more likely to engage in OCB. In addition, we hypothesize that CEO's visionary leadership can strengthen the positive effect of employees' perception of CSR legitimacy on their OCB. We tested these hypotheses with the sample of 383 employees from 32 companies listed on DJSI (Dow Jones Sustainability Index) Korea 2009. We employed the HLM (hierarchical linear modeling) program to decompose the multi-level random effects. We found that CSR legitimacy perceptions of employees increase employees' OCB and that CEO's visionary leadership moderates this relationship. We discussed implications of these findings in more detail.

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Social Environment Research of Capitalism for the Private Security Development (민간경호경비의 발전에 대한 자본주의의 사회환경적 해석)

  • Kim, Chang-Ho;Gong, Bae-Wan
    • Korean Security Journal
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    • no.7
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    • pp.125-154
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    • 2004
  • Capitalism is based on a material desire of the human being. the social control of capital value and the management of capital ability reflects the actual condition of the capitalism well. The unconstrained growing and the expansion of capitalism, it finally lost social meaning and an importance of human being element and the safety of the civilian life, began to threat the security of citizen by forming over the material center structure of society. Improving human life quality and material richness on their life leads positive factor of capitalism whereas is causing several crimes through the society which is being threatened around a human being life for a negative factor of the capitalism. Therefore capitalistic social system has offered both a positive factor 'growing' and 'richness' and that of a negative 'structural poverty' and 'lack of security' and they have been remaining the assignment of capitalism 'poverty' and 'security' by settlement in the society for a extremely phenomenon of both sides. The objective of this research is to build its study theory and establish its causal relation by illuminating for the social environment of capitalism for a private guard or a development background of the civil security contributing for citizen security, as well as gets the clue of the development possibility of the civil guard and escort field and the development of capitalism. In Korea because their recognition of the study approach and the social safety for social security control function is still staying first step and our daily life is annoying from various threat of the society, many studies and the realistic necessity of experience related with social security is being studied. In addition, The development possibility of the civil guard and defense at the civil field which will be keep the social security has a wide position but its study approach and realistic comprehension is still in insufficient condition. Consequently, this research is started to grasp the security of civil fiend and to grope a development possibility through the research of capitalism.

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First Report of Red Thread of Kentucky Bluegrass (Poa pratensis L.) Caused by Laetisaria fuciformis on Golf Course in Korea (국내 골프코스의 켄터키블루그래스에 Laetisaria fuciformis에 의한 붉은뿔마름병(Red Thread) 발생보고)

  • Lee, Jung Han;Kim, Jeong Ho;Shim, Gyu Yul;Kwak, Youn-Sig
    • Weed & Turfgrass Science
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    • v.7 no.3
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    • pp.269-274
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    • 2018
  • In the middle of May 2018, typical red thread disease symptoms were observed on Kentucky bluegrass (Poa pratensis L.) on a golf course, which locates at Yangsan, Gyeongnam province in Korea. Irregular-shaped patched symptoms were observed in fairway of golf course. The foliar symptom was dried out and faded to straw color and tip of the grass leaves were tangled like thread. Early morning, infected and tangled leaves were covered with the pinkish gelatinous antler-like structure (sclerotinia) as a typical red thread disease symptom. Causal fungal pathogens were isolated from the symptom in Kentucky bluegrass. The fungal culture characteristic on potato dextrose agar color of colony was pale pink and conjugated hyphae, sclerotium of irregular shape was pale pink and 3~5mm diameter in size. The pathogen was identified as Laetisaria fuciformis based on morphological and culture characteristics as well as molecular characteristics. Pathogenicity test was verified on the Kentucky bluegrass by Koch's postulates. This is the first report of red thread disease occurrence in Kentucky bluegrass by L. fuciformis in Korea.