• Title/Summary/Keyword: 정체점

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Preventive Congestion Management Algorithm for Ubiquitous Freeway System (유비쿼터스 교통환경을 위한 연속류 정체예방관리 알고리즘)

  • Park, Eun-Mi
    • Journal of Korean Society of Transportation
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    • v.27 no.3
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    • pp.161-168
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    • 2009
  • The ubiquitous transportation system environments make it possible to collect each vehicle's position and velocity data and to perform more sophisticated traffic flow management at individual vehicle or platoon level through V2V and V2I communication. It is necessary to develop a new traffic management paradigm to take advantage of the ubiquitous transportation system environments. This paper proposed a preventive congestion management algorithm for uninterrupted flow, whose goal is to minimize the incident potential and maximize the productivity by maintaining traffic flow stability. The algorithm includes the following steps: Processing the raw data to produce the 3-dimension speed/flow/density profile and to produce the platoon profile and the shock wave profile, Determining the traffic state and the flow stability based on the processed data, Deciding the desirable speed the according the traffic flow state, and finally Providing the desirable speed information. It remains as further work to perform field experiments and calibrate the algorithm parameters.

The Implications of Global Citizenship and Regional Identity in Multicultural Society in the Field of Geographical Education (다문화사회에서 세계시민성과 지역정체성의 지리교육적 함의)

  • Park, Seon-Heui
    • Journal of the Korean association of regional geographers
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    • v.15 no.4
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    • pp.478-493
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    • 2009
  • The purpose of this paper is to discuss the educational implications of global citizenship and regional identity in geographic education of multicultural society. Geographical education inquires into places and region on local, regional, national and global scales. Geography studies geographical representation of ethnical, cultural, political diversities of human societies. Therefore geography is a very proper subject for multicultural education. Geography has also inherent legitimacy on multicultural education in the viewpoints that space or region has valued inherent nature which is constructed by human experience, perception and response etc. Citizenship in multicultural education requests some abilities and attitudes of world citizens superior to state or nation oriented citizenship. However the education of world citizenship doesn't mean abandonment of regional identity in geographical education. Citizenship is based on geographical units which have their territories. Regional identity is the feeling of belonging as a member of a certain region, and is formed not only by race, ethnic, gender, political and social position but also by thought of nature, landscape, national identity, regional dialect, and historical context, etc. The regional identity in multicultural society means the homogeneity which includes the heterogeneity of diverse groups, and has a key which solves the conflicts of diverse groups in the region. Consequently multicultural education in geography would focus on the cultivation of regional identities which are founded on critical thinking to solve the conflicts of multicultural society. The geographic education in multicultural society would rather emphasize on region than on race or nation, and can integrate the global vision of world citizenship with the diverse viewpoint of multicultural education.

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The Influence of Employees' Perceived CSR on Job Attitude - Focusing on the Mediating Effect of Organizational Identity - (조직구성원의 지각된 CSR이 직무태도에 미치는 영향 - 조직정체성의 매개효과를 중심으로 -)

  • Jee, Yong-Ik;Kim, Chan-Jung;Kim, Hong-Gu
    • Management & Information Systems Review
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    • v.36 no.4
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    • pp.167-185
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    • 2017
  • With the expansion of corporate influence on civil society, companies are facing various demands and expectations on higher social responsibilities. This study discusses the influence of corporate social responsibility(CSR) on job attitude of employees when they recognize their company's CSR efforts. In this regard, it focuses on mediator effect of organizational identity by examining job satisfaction, organizational commitment, and turnover intention. Based on empirical investigation, positive influence was confirmed, stemming from recognized CSR. It influenced organizational identity, and it changed job attitudes including job satisfaction, organizational commitment, and decline of turnover intention. This result shows that if employees recognize company's sincere CSR activities and organizational values and culture are desirable, they tend to more strongly identify themselves with their organization. In sum, this paper found that organizational identity can be applied as a mediator which enhances the influence of CSR on job attitude. Lastly, it analyzed applicable implications to business management and suggestions for future research.

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Effect of Police Corruption Factors on Corruption Level through Occupational Identity and Organizational Citizenship Behavior of Police Officers (경찰부패 요인이 경찰공무원의 직업정체성과 조직시민행동을 매개로 경찰부패에 미치는 영향)

  • Chun, Kyung Kook;Kim, Taek
    • The Journal of the Convergence on Culture Technology
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    • v.7 no.2
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    • pp.97-106
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    • 2021
  • The issue of controlling police corruption is very important that in terms of public services where police administration is in direct contact with citizens. In this study, individual, organizational, cultural, and legislative factors are classified as independent factor variables that contribute to police corruption, and the effect of these corruption factors on the level of police corruption, and the role of occupational identity and organizational citizenship behavior of police offices in this relationship are analyzed. A survey is conducted on the public citizens for empirical analysis of this study. The results of the empirical analysis are as follows: First, organizational, cultural factors and legal-legislative factors have negative influence on the occupational identity. Second, legislative factors has negative influence on organizational citizenship behavior. Third, organizational, cultural and legislative factors have positive effects on police corruption. Finally, in terms of the effect of corruption factors on organizational citizenship behavior through occupational identity, organizational, cultural and legal-legislative factors had negative mediating effect on it.

Trait Positive Affect and OCBI : The Moderating Role of Perceived Group Positive Affect and the Mediating Role of Group Identification (긍정적 정서성향과 조직시민행동 : 긍정적 집단 분위기 인식의 조절효과와 집단정체감의 매개효과를 중심으로)

  • Kim, Moon Joung
    • The Journal of the Convergence on Culture Technology
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    • v.7 no.1
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    • pp.416-423
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    • 2021
  • Drawing upon research in affect and social identity theory, this study examines when and how an individual's trait positive affect (TPA) exerts a significant effect on the person's organizational citizenship behavior directed toward individuals (OCBI). A moderated mediation model was tested by using the data of 293 employees nested in 66 work groups. Results demonstrate that the indirect effect of TPA on OCBI mediated by group identification (GI) is significantly positive only when perceived group positive affect (PGPA) is low, highlighting the substituting role of PGPA in the relationship between TPA and GI. The significant conditional indirect effects at the low level of PGPA suggest that TPA functions as significant, affective resources for enhancing GI and consequently increasing OCBI of the focal member when PGPA is low. By contrast, TPA's role in enhancing GI becomes redundant when PGPA is high. The current analysis reveals potential complementary functions of TPA and PGPA in explaining subsequent identity cognition and individual behavior.

Beyond Swahili Myths: Migration and the formation of modern Swahili identity (스와힐리 신화를 넘어서: 이주와 현대적 스와힐리 정체성의 형성)

  • Chang, YongKyu
    • Journal of International Area Studies (JIAS)
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    • v.12 no.4
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    • pp.395-420
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    • 2009
  • Academic discourses on Swahili identity have been focused on either its Bantu or Arabic-originated theories. Both theories, nevertheless, have a common feature: a unilineal origin of Swahili identity. This paper questions on this Swahili identity and argues that Swahili identity has been developed through historical experience and discourses. For this, the paper utilizes Barth's theory of situationalism. Barth(1998(1969)) suggests that maintaining an ethnic identity is a personal or group choice out of multiple layers of social identities according to his or their social environments. Tanzanian Swahili identity is a good case for this analysis. Based on fieldwork conducted at Magomeni and Msasani in Dar es Salaam, a capital of Tanzania, the paper shows that residents in both areas hold strong Swahili identities although they have different social and historical experience. In case of Magomeni, most of the residents came from Zanzibar, a core Swahili cultural area. They trace their original genealogy from Arabia peninsular. Besides, they argue that they speak a proper kiSwahili(Swahili language) distinguishable from inland kiSwahili. On the contrary, residents of Msasani show variety of ethnic identities, far from a proper Swahili. They have adapted Swahili identities since the independence of Tanzania. With the help of strong socialist policies, including a language policy, most of Tanzanian ethnic groups have ignored their own identities and accommodated a national identity, Tanzanian(waTanzania) or Swahili people(waSwahili). Makonde immigrants from Mozambique who consists the majority of residents in Msasani also easily accommodate Swahili identity in the course. Therefore, Makonde have began to rebirth as waSwahili by claiming that they are living in Tanzania and speak kiSwahili as a mother tongue.

The Effects of Civic Consciousness and Sense of Community on Happiness in Adolescent: Mediating Effects of Career Desision (고등학생의 공동체의식과 시민의식이 행복감에 미치는 영향: 진로정체성의 매개효과)

  • Kak-Ja Jang;Na-Yeon Kim;Mi-Hyun Kim
    • Journal of Industrial Convergence
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    • v.21 no.8
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    • pp.75-86
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    • 2023
  • The purpose of this study was to provide basic data to increase happiness by verifying the mediating effect of career identity in the relationship between community consciousness, civic consciousness, career identity and happiness of high school students. Data analysis used data from the '2020 Generation Z Teenage Values Survey' conducted by the Korea Youth Policy Institute. Among the survey subjects, 2,959 out of 3,037 high school students who met the purpose of this study, excluding missing, were sampled and analyzed using the SPSS WIN 25.0 program. The analysis method used frequency analysis, descriptive statistical analysis, correlation analysis, and Bayron and Kenny's analysis methods to verify the mediating effect, and applied Sobel test techniques to analyze indirect effects and significance. The results of the study showed that, first, high school students' sense of community and citizenship increased their happiness. Second, career identity had a partial mediating effect in the relationship between community consciousness and happiness. Third, it shows a partial mediating effect of career identity in the relationship between citizenship and happiness. Based on this, this study is meaningful in that it suggests policy alternatives and practical programs to promote high school students' happiness.

Structural Relationship among Regional Identity, Team Identification, and Re-attend Intention (지역정체성과 팀정체성, 재관람의도의 구조적 관계 : 프로축구 산업을 중심으로)

  • Kim, Ki-Tak
    • The Journal of the Korea Contents Association
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    • v.11 no.4
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    • pp.404-413
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    • 2011
  • The research for the regional identity including relationships with professional sport team was caused by local autonomy system and localism. This study was to verify structural relationships among regional identity, team identification and re-attend intention of professional soccer spectators. Data were collected from spectators of professional soccer game in 'D' metropolitan city. Using purposive sampling method, a total of 397 samples were used for analysis. The statistical techniques for data analysis were descriptive analysis, frequency analysis, reliability analysis, correlation analysis, confirmatory factor analysis, and structural equation modeling by SPSS 15.0 and AMOS 7 programs. The results of this study were that regional identity have a positive effects on team identification. Also, team identification have a positive effects on re-attend intention. Theoretical and practical implications and future research directions were provided.

The Effect of Self-Efficacy on Career Commitment: Mediating Effects of Career Identity and Conditional Effects of Goal Difficulty (자기효능감이 경력몰입에 미치는 영향: 경력정체성의 매개효과와 목표난이도의 조절된 매개효과)

  • Nayeon Lee;Hyunjeong Jo; Woocheol Kim
    • Journal of Practical Engineering Education
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    • v.15 no.3
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    • pp.649-662
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    • 2023
  • This study aimed to confirm the conditional effect of goal difficulty on the relationship between self-efficacy, career identity, and career commitment of workers in domestic companies. A survey targeting 500 employees of domestic companies was conducted to measure self-efficacy, career identity, career commitment, and goal difficulty. Data were analyzed using MPlus and SPSS PROCESS Macro. The results are as follows. First, self-efficacy was found to have a significant positive effect on career identity and career commitment. Additionally, career identity was found to have a significantly positive effect on career commitment. Second, the mediating effect of career identity on the relationship between self-efficacy and career commitment was significant and moderated by the level of goal difficulty. Based on the above research results, the academic and practical implications are presented.

Predictive Factors for Prognosis of Neonatal Intrahepatic Cholestasis : Non-Familial, Non-Metabolic, Non-Syndromic Cholestasis (신생아 간내 담즙 정체증의 예후 인자: 비가족성, 비대사성, 비증후성 담즙 정체증)

  • Kim, Hyung Suck;Lee, Chang Hoon;Kim, In Ju;Park, Jae Hong
    • Pediatric Gastroenterology, Hepatology & Nutrition
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    • v.7 no.2
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    • pp.208-214
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    • 2004
  • Purpose: The prognosis of neonates with cholestasis is not clear. Some factors, such as high peak bilirubin levels and liver histologic findings have been claimed to affect the prognosis adversely. Our study aims to define which factors influence the prognosis of neonatal intrahepatic cholestasis. Methods: Retrospective reviews of the medical records were performed in 32 cases with neonatal intrahepatic cholestasis, who were admitted to Department of Pediatrics, Pusan National University Hospital from July 1995 to July 2002. Neonates were classified into 2 groups according to the duration of elevated serum alanine aminotransferase (ALT) levels more or less than 6 months. The data, such as biochemical, histopathologic and radiologic findings, were compared in both groups. Biochemical data included mean peak level of serum ALT, total bilirubin, direct bilirubin, and alkaline phosphatase. Histologic parameters related to lobular architecture, fibrosis, inflammatory infiltration and degenerative features of hepatocytes were arbitrary estimated on a scale of 1 to 3. Results: There were 19 males and 13 females, whose mean age was 48 days (14~77 days). The peak serum ALT levels were higher in the poor outcome group. Ductular proliferation and portoportal bridging were more severe in the poor outcome group. But the degree of multinucleated hepatocytes, hepatocellular swelling and canalicular plug did not appear to be significantly related to the long-term outcome. The DISIDA scintigraphy by visualization time of gall bladder and intestine was not useful in predicting outcome of neonatal intrahepatic cholestasis. Conclusion: Neonates who have intrahepatic cholestasis with high serum ALT levels, severe ductular proliferation and portoportal bridging in the liver biopsy specimen should be carefully followed up because they may have a poor prognosis.

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