• 한국시스템다이내믹스학회:학술대회논문집
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• 한국시스템다이내믹스학회 2004년도 하계 학술대회 발표논문집
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• pp.109-128
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• 2004

The complexity of information and communication policy has been increasing due to its rapid changes and its expansions toward various fields. I used the2001, 2002 and 2003 White Papers on MIC(Ministry of Information and Communication Republic of Korea) as a reference and the Vensim PLE program to create a causal map. According to my analysis, no major feedback loop was found among the information and communication policies. Thus, it was impossible to conduct a causal map analysis on these policies. The causal map analysis is usually employed to understand a complex mechanism of entire policies by finding feedback loops among them. A lack of feedback loops makes it impossible to conduct the causal map analysis and means that the mechanism of such policies is even more complex to understand. The most important conclusion is that to consider feedback thought among the policies based on the systems thinking before making the policies.

• 한국정보보호학회:학술대회논문집
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• 한국정보보호학회 2006년도 하계학술대회
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• pp.329-333
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• 2006

New computing paradigm in ubiquitous computing environments is revolutionizing the way people interact with computers, services and the surrounding physical spaces. In order to provide stronger authentication, MIST proposed an authentication framework for ubiquitous computing environments and assigned confidence values to some authentication methods to facility the combining. However, the assigned confidence values lack sufficient evidence. In this paper reliable confidence values for each authentication method used in MIST is proposed. These confidence values can combine multiple confidence values in some manner, producing a more accurate net confidence value. Authentication entities with confidence values allows the authentication framework to blond nicely into ubiquitous computing environments.

• 한국언론정보학보
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• 제46권
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• pp.485-510
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• 2009

이 연구는 신규매체로서 IPTV의 서비스 이용자들을 대상으로 IPTV의 선택요인과 수용행태를 조사하고 다양한 부가서비스 이용에 대한 만족도를 실증적으로 분석했다. 연구결과, 요금과 콘텐츠 유형이 IPTV 사업자 선택에 영향을 미친 것으로 나타났으며, 매체 간 기능적 유사성은 IPTV와 인터넷의 유사성이 다른 매체들에 비해 조금 더 높은 것으로 나타났다. IPTV가 제공하는 서비스 유형 중에는 생활서비스와 부가서비스, 쌍방향서비스와 교육서비스의 이용 만족도가 높은 것으로 밝혀졌으며, IPTV 서비스의 전반적인 만족도는 항목별 실제 이용정도에 비해 높은 것으로 나타났다. IPTV 콘텐츠 가운데 수용자들은 국내드라마를 가장 많이 시청했으며, 해외영화와 연예오락 프로그램이 그 다음 순위를 차지했다. IPTV 수용자들이 느끼는 가장 큰 문제점은 '비용부담'과 '콘텐츠의 다양성 부족' 이었으며, 가격요인이 IPTV 선정기준에 가장 크게 작용하는 것으로 나타났다. 특히 유료 콘텐츠 이용 및 부가 서비스에 따른 추가비용 상승 부담을 향후 IPTV의 가장 큰 문제점으로 인식하고 있었다. 기존의 연구들이 IPTV 상용화 이전에 수용자 예측조사를 실시했다면, 이 연구는 IPTV 상용화 이후 주요 IPTV 서비스(메가TV, SK브로드밴드, LGTV)를 이용하는 실수용자들을 대상으로 IPTV의 가입특성과 다양한 서비스 이용행태 및 만족도를 밝히고 수용자들의 가격민감성을 연구결과로 제시했다는 점에 의의가 있다.

• 보건교육건강증진학회지
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• 제28권1호
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• pp.37-47
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• 2011

Objectives: The purpose of this study was to explore the influential factors of family function, parent-child communication, and family satisfaction on Korean adolescents game use. Methods: The participants were 940 adolescents in Seoul. A structured questionnaire was used to collect data. The study variables were family function, parent-child communication, family satisfaction, and game use. Results: Game use was different by gender, age, time to spend in game during weekdays and weekend. Game use had significant negative correlations with family cohesion, family adaptability, communication with father, communication with mother, and family satisfaction. Multiple regression analysis showed that 20.3% of the game use was explained by gender, communication with mother, hours of playing games during weekdays, family adaptability, and hours of playing games during weekend. Conclusions: These results suggest that being male and lack of communication with mother, low family adaptability, game hours during weekdays and weekend can be potential risk factors for excessive game use in the adolescents, which should by considered in developing a prevention program for excessive game use focused on family factors.

• 한국의류산업학회지
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• 제13권5호
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• pp.705-716
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• 2011

The purpose of this study was to investigate salesperson's perception of fashion company in the middle management system of department store. This study was conducted by a qualitative research method. An in-depth interview was managed to 14 fashion shop managers and salesperson who have three or more years of work experience at the department store. Interview details were classified three categories: relations with fashion company and others, concern with products supply, concern with products sales. First, the positive factors on relations with fashion company are mutual trust, stability of fashion company, coordination and consideration for shop, communication with fashion company, methodical IT system, methodical education, and social gathering support. The negative factors are unilateral breach of contract from fashion company, communication problem, gap between sales status in shop and product design in fashion company, lack of professional education, difficulty of participating in education, and inadequate employee benefits. Second, the positive factor on products supply is priority of products supply. The negative factors are lack of main items, product procurement lacking rapidity, and problem of securing a supply. Third, the positive factors on products sales are brand pride, display and information support about products, and free gift support. The negative factors are unfair selling commission policy, sales pressure, and excessive responsibility.

• 대한수의학회지
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• 제45권4호
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• pp.517-525
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• 2005

This study was performed to evaluate using wild-type (WT) and $C{\times}32$ knockout (KO) mice if lack of cell to cell communication by connexin 32 gap junction enhances the benzene-induced hematotoxicity and hemopoietic tumor development. The WT and $C{\times}32$ KO mice were exposed to 300 ppm of benzene for 6 hours/day, 5 days/week for a total of 26 weeks by inhalation, and then sacrificed to evaluate the toxicities of hemopoietic organs or allowed to live out their life span to evaluate the hemopoietic tumor incidence. The significant increase and decrease of organ weight were respectively noted in spleen and thymus of both WT and $C{\times}32$ KO mice without significant difference between the genotypes. Histopathologically, benzene exposure for 26 weeks induced the morphological changes in hemopoietic organs, characterized by fat cell accumulation in the bone marrow and extramedullary hemopoiesis in the spleen. The fat cell accumulation was, compared with that of WT mice, considerably exacerbated in the $C{\times}32$ KO mice. However, no significant difference was observed in the changes of hematological values and bone marrow cellularity as well as in the onset and incidence of hemopoietic tumors between WT and $C{\times}32$ KO mice. In conclusion, this study indicated little significant role of the cellular communication by $C{\times}32$ gap junction in the action mechanism of benzene hematotoxicity and leukemogenicity.

• 한국수학교육학회지시리즈A:수학교육
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• 제39권1호
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• pp.71-80
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• 2000

As the new century begins, it is clear that K-l2 education is going through a major change. The increasing power and affordability of personal computers along with wide spread use of the Internet has not only changed the landscape for communication but it has opened up new and exciting opportunities for education. One of the ways that Internet could help improve education is to act as an interactive communication link to gather the knowledge and experience of all the teachers and to serve as an open forum for discussing and exchanging innovative ideas. But developing a successful site is not an easy task since the success of the site depends on the level of participation and cooperation of teachers. In this paper, learnings derived from the development of an interactive web based resource center for K-12 mathematics teacher are described and recommendations for developing an effective site for teachers are suggested. The development of an interactive resource center for mathematics teachers showed that while interest for a web based resource is very high, the main obstacle for effective teacher participation is lack of easy accessibility of internet by teachers, and lack of computer and internet training for teachers. The technical issues regarding hardware installation, software development and cost were minimal. Accessibility will improve in time as more and more schools are connected to the internet, but this alone will not be enough. The study suggests that in order to bring together teachers on the internet more effort needs to be made in training teachers on the use of computers and the internet.

• 한국직업건강간호학회지
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• 제18권1호
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• pp.116-127
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• 2009

Purpose: This study was intended to understand relevant factors by observing phenomena and characteristics of family nursing based on ICNP. Methods: The subjects of this study were nurses and 80 reports were prepared by 680 students for the data. Results: The results are as follows: The average number of the family problems the subjects were faced with was 3.5, while the majority (70%) had 3 problems. The most frequently occurred family problem was 'lack of or improper communication,' followed by 'inappropriate family coping,' 'unhealthy life style,' 'inadequate care management of sick members,' and 'wrong parental role.' Married women showed high APGAR score in the family function. The problems they were experiencing were 'lack of or improper communication,' 'inadequate care management of sick members,' and 'wrong parental role.' Conclusion: As a conclusion, the following is advised. First, intervention strategies are required for the women workers at medical institutions as their family problems revealed to have occurred frequently. Second, in order to alleviate family problems of married working women with various tasks and roles they play, necessary measures and concern in the aspect of industrial nursing are needed.

• 한국전자통신학회논문지
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• 제14권4호
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• pp.693-700
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• 2019

본 논문은 민간 및 공공 소유의 활용 가능한 유휴공간을 더 발굴하고 사례의 다양한 적용을 통해 효율성이 강화된 설비를 적용하여 발전 단가의 지속적인 하락과 육상기반의 지상 발전부지의 부족 및 인허가 애로사항을 효과적으로 대체하는 사례로 연구하고자 한다. 구축 운영 사례를 바탕으로 분석 요인의 도출과 요인별 가변조건에 따라 경제적 가치와 수익성을 시뮬레이션을 하였고 태양광발전소의 수익모델 후속 발굴 연구에 활용될 수 있도록 한다.

• Child Health Nursing Research
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• 제11권3호
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• pp.273-281
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• 2005

Purposes: The purposes of this study were to evaluate parent satisfaction with inpatient hospital services in children's hospitals and to identify variables related to parent satisfaction. Method: A descriptive correlation study was conducted. Parents of 165 children who were inpatients in two children's hospitals participated in the study. Data were collected using structured questionnaire at the time of discharge. For statistical analysis, t-test, ANOVA, and Pearson correlation analysis were used. Results: The highest parent satisfaction domain was nursing service, and the lowest parent satisfaction domain was hospital service and accommodations. Parents were less likely to be satisfied with hospital facilities, equipment, noise and cleaning and less likely to be satisfied with the lack of information they received and with the lack of communication with health care professionals. Parents with longer length of stay and with older children reported higher satisfaction than their counterparts. Moreover, parent satisfaction was related to their intention to revisit and related to intention to recommend this surveyed hospital over others. Conclusions: Efforts to improve parent satisfaction in children's hospital service and accommodation are needed to improve the quality of health care. Communication by health care professionals with parents and a partnership between parents and health care professionals are necessary to improve quality of care.