• Journal of The Korean Society For Urban Railway
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• v.6 no.4
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• pp.373-381
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• 2018

The floating population that is index to figure out dynamic activities in urban area will be important in urban railway planning, but it is not useful because it is collected by posterior method. This study aims to investigate factors influencing floating population. The floating population data that was collected in Seoul for a month in December 2013 is used as dependent variable, and the negative binomial regression analysis is used in modelling. The number of households, number of employees, number of subway stations, and number of bus lines variables are statistically significant in predicting floating population.

• Journal of the Korean BIBLIA Society for library and Information Science
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• v.16 no.2
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• pp.25-41
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• 2005

Collaboration between libraries and archives would be an effective and efficient strategy for them to accomplish their mission to make useful information accessible for current users and to preserve valuable documentary heritage for future users. This paper indicated differences in their organizational culture and some technical problems as obstacles to collaboration. Nine cases of collaboration and cooperation between libraries and archives in some foreign countries were introduced. This paper analysed strength and weakness for Korean libraries and archives when they explore ways to go into partnership. Based on the analysis. it suggested to develop the communication channels between libraries and archives; to further the education of competent professionals; to establish necessary standards. to get legal and financial support from the central and local authorities.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.12 no.12
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• pp.5558-5563
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• 2011

Using longitudinal data of 108 firms in large business conglomerates from 2001 to 2009, this study examines the impact of controlling shareholders' control-ownership disparity on R&D investment. The study finds that control-ownership disparity is negatively related to R&D intensity. This empirical result suggests that controlling shareholders' control rights in excess of ownership rights incent controlling shareholders' expropriation for their private interests, leading to decreased R&D investment which enhances firm value in the long term.

• Journal of the Korean Institute of Landscape Architecture
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• v.47 no.4
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• pp.24-32
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• 2019

According to the Ministry of Land, Infrastructure, and Transport, the total area of unexecuted urban planning facilities in Korea is about $1,257km^2$, of which 47% is the unexecuted urban green space and forests. In the case of Seoul, the total area of unexecuted urban planning facilities is about $66km^2$, which is 5.24% of the total unexecuted area in the entire country. In Seoul, approximately 88% of the total unexecuted area is urban green space and forests, which is higher than the national rate. About 92% of the unexecuted urban planning facilities are long-term unexecuted urban planning facilities that are more than 10 years old. This study assessed the economic value of potential ecosystem services, focusing on the regulation service, supporting service, and cultural service, for urban green space and forests of unexecuted urban planning facilities in Seoul by using meta-regression analysis. As a result, the value of the regulation service provided by the urban green space and forests in Seoul was about 16.39 billion KRW, the value of the supporting service was about 5.8 billion KRW, and the cultural service value was about 7.78 billion KRW. The total value of ecosystem services is about 33.93 billion KRW. The values of regulation service and cultural service were the highest, and that was attributed to the characteristics of the downtown area. The significance of this study is to evaluate the value of ecosystem services for unexecuted urban planning facilities in Seoul. The results of this study can be used not only in the process of urban planning or policymaking but also land compensation methods applying the concept of an ecosystem service payment system.

• Journal of Korean Library and Information Science Society
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• v.48 no.4
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• pp.181-207
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• 2017

The purpose of this paper is to provide values and effectiveness to libraries making a new social network service marketing model and strategy. According to study, when libraries entice library users with social network services, the users become loyal customers who give libraries long-term supports. For method of study, it establishes 15 hypotheses and proves those hypotheses with 157 responders. After inspecting hypotheses, 13 hypotheses are adopted and 3 hypotheses are dismissed. During the research, it is verified that usefulness perceived by library users is the most important factor of user satisfaction and continuous use intention which increased library users' intention to continue visiting the library. In addition, effectivness of marketing and cause are found in order of system quality, information quality, reliability, interactivity, subjective norms. In other words, the study found that library users found their information for using social network services and this attribute affects user satisfaction and ultimately continuous use intention in a positive way.

• Clinical and Experimental Pediatrics
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• v.52 no.4
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• pp.471-475
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• 2009

Purpose : Mitochondrial disorders are a clinical entity characterized by diverse symptoms and signs of involvement of various systems. Furthermore, the disorders are known to show ophthalmologic manifestations as well as neurological findings. Visually evoked potential is a sensitive measure to check the integrity of the visual pathway. In this study, we have investigated the value of visually evoked potential in mitochondrial disorders with respiratory chain defects. Methods : Nineteen patients diagnosed with mitochondrial respiratory chain complex I defect as confirmed by spectrophotometric enzyme assay in muscle samples were enrolled for this study. The patients underwent a visually evoked potential study. We classified the results into four groups and compared these with clinical ophthalmologic findings. Results : Among the 19 patients, 14 showed abnormal visually evoked potential findings. Seven patients showed abnormal clinical ophthalmologic findings. All patients with abnormal ophthalmologic findings showed abnormal visually evoked potential findings. Among the 12 patients with normal ophthalmologic findings, seven showed abnormal results in visually evoked potential. Conclusion : Visually evoked potential study could be used as an effective screening tool for mitochondrial disorders to detect ophthalmologic and neurological abnormalities.

• The Korean Journal of Nuclear Medicine Technology
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• v.16 no.1
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• pp.62-69
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• 2012

Purpose: The present study has an objective of effectively separating and making observations on a portion of radiopharmaceutical excreted via digestive organ to remain in the organ and invade a heart shadow. Materials and methods: When heart shadow is blocked by the organ in tests during a resting phase and a loaded phase, additional images were obtained using immobilization device. The immobilization devices were used to tilt the upper body forward from supine position. Results: In the reconstructed image for the separated case, as compared with the case where a part of organ is overlapped with heart, in terms of an overall mean value for each parameter, the end-diastolic volume increased by 2.75 mL, the end-systolic volume decreased by 3.16 mL, the left ventricle cardiac coefficient increased by 3.58%, and the area of defect region decreased by 3.58 and 3.92 cm for loading and resting phase, respectively. Conclusions: In the present study with myocardial perfusion SPECT, overlapped areas of heart and other organs could be effectively separated and visualization by the use of an immobilization device.

• Proceedings of the Plant Resources Society of Korea Conference
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• 2018.04a
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• pp.6-6
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• 2018

백두대간은 백두산에서 시작된 큰 산줄기로 금강산, 설악산, 덕유산 등을 거쳐 지리산까지 이어지는 우리나라 중심 산줄기이다. 백두대간은 우리 민족 고유의 사회 문화적 가치는 물론 자연 생태적 측면에서 매우 중요한 지역이다. 백두산에서 지리산까지 약 1,400km, 남한 지역은 약 700km가 남북으로 길게 연결되어 우리나라 주요 산들을 연결하는 한반도 중심축을 형성하고 있다. 백두대간은 생물다양성의 보고이자 주요강의 발원지로 중요한 역할을 하고 있다. 이러한 주요 지역에 위치함 국립백두대간수목원은 수목원 정원의 조성 및 진흥에 관한 법률에 근거하여 기후대 및 식생권역별 국가수목원의 확충 계획에 따라 온대 북부 권역에 조성되었다. 백두대간 산림생물 다양성 유지와 산림생물자원의 보전 및 활용을 위한 다양한 연구를 수행하고 있다. 국립백두대간수목원의 시드볼트는 생물다양성 보존과 산림생물유전자원의 지속가능한 활용을 위하여 종자보존 협력 네트워크를 구축 하고 있다. 또한 아시아를 포함한 전세계 야생 종자를 수집하기 위한 기후대 생태권역별 종합계획 수립과 표준화 모델 개발을 통해 체계적인 협력체를 구축 중이다. 종자의 안정적인 장기 보존을 위한 형태학적, 분자생물학적 연구를 통해 종자의 저장특성 연구 및 수명연구를 통해 예측 모델을 연구하며 이를 기반으로 생태계 복원을 위한 종자 활용 연구를 수행하고 있다. 국립백두대간수목원은 백두대간 생물종의 조사, 생태계 보전 복원연구를 위한 현지 조사, 서식지외 보전 기관 역할, 유용자원 발굴 및 연구 등 백두대간 생물다양성 보전을 위한 다양한 역할을 하고 있다.

• The Journal of the Korea Contents Association
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• v.22 no.10
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• pp.330-348
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• 2022

The purpose of this study is to derive useful theoretical and practical implications for the prevention and overcoming of burnout of visiting caregivers by conducting a qualitative case study researb on the burnout experience of visiting caregivers. To this end, we analyzed the context in which visiting caregivers experienced relationships with the elderly 65 years of age or older and their family carers for long-term care benefit service, and the dispatched home elderly welfare center. As a result, a total of 12 high-level categories were derived, Which were 'I fell into a suspicious person', 'Fallen self-esteem', 'Visiting caregiver activity I don't want to do anymore', 'Oppressed being', 'In a violent situation Exposure', 'Devaluated care worker', 'Work that is difficult to be recognized as a professional occupation', 'Labor where the boundaries of work are not clear', 'Disappointment with family guardians', 'Social awareness and effort that is not easy to improve', 'Poor treatment of dispatching agencies' and 'Distrust of dispatching agencies'.

• Information Systems Review
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• v.16 no.3
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• pp.215-242
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• 2014

This paper investigates accounting principles about social infrastructure on Korean National Accounting Standard and on National Accounting Standards from other countries that adopted a accruals- based national accounting standards. Social infrastructure as assets has important value in financial statements of Korea and deterioration or insufficient management of social infrastructure accompanies a huge social cost. Therefore, understanding the characteristics and related accounting standard for social infrastructure is necessary. To do this, we examine the accounting standards of U.S., New Zealand, and Australia. We also review the financial statement of local government. Based on these findings, this paper suggests that a preventive-asset management approach should be applied and alternative depreciation method for social infrastructures is developed. Moreover, a local government needs to provide important accounting information to the public in a timely and reliably manner.