• Journal of Korean Academy of Nursing
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• v.42 no.5
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• pp.632-643
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• 2012

Purpose: This study was done to develop tool to evaluate the core competencies regarding nursing cancer patients on chemotherapy, and to verify the reliability and efficacy of the developed tool. Methods: A tool to evaluate the core competencies was developed from a preliminary tool consisting of 112 items verified by expert groups. The adequacy of the preliminary tool was analyzed and refined to the final evaluation tool containing 76 items in 8 core competencies and 18 specific competencies. The evaluation tool is in the form of a self-report, and each item is evaluated according to a 3-point scale. From September 22 to October 14, 2011, 349 survey responses were analyzed using SPSS 20.0 and the WINSTEPS program that employs the Rasch model. Results: Results indicated that there were no inappropriate items and the items had low levels of difficulty in comparison with the knowledge levels of the study participants. The results of factor analysis yielded 18 factors, and the reliability of the tools was very high with Cronbach's ${\alpha}$=.97. Conclusion: The results of this study can be used for training and evaluation of core competencies for nursing cancer patients, and for standardizing nursing practices associated with chemotherapy.

• The korean journal of orthodontics
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• v.38 no.6
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• pp.388-396
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• 2008

Objective: The purpose of this study was to evaluate the effects of malocclusion on the self-esteem of female university students. Methods: The subjects were composed of 67 female university students who showed Class 1 molar relation, no missing or supernumerary teeth and has had no orthodontic treatment experience. Each subject was evaluated with Rosenberg's Self-esteem Scale to measure the level of self-esteem and also evaluated the degree of anterior crowding and lip protrusion through model analysis and cephalometric soft tissue profile analysis. Results: The results showed that a protrusive profile and crowding of upper anterior teeth had significant reducing effects on the level of self-esteem. The protrusion and crowding groups showed no significant differences in self-esteem between groups. Conclusions: Malocclusion had significant negative effects on the self-esteem of female university students. Further research to investigate the negative psychological influence of malocclusion and the education of lay people about this influence is necessary.

• The Journal of Bigdata
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• v.2 no.1
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• pp.59-69
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• 2017

According to precedent research of disaster economics, most of the studies are either based on belated macroeconomic indicators or are limited to specific industries. It is certain that preventing disaster is important, but immediate analysis and reconstruction policy are crucial as well. This research analyzed the ripple effect of consumer spending followed by April 16 ferry disaster and MERS outbreak; it was done by applying credit card company's real-time big data with Marketing Mix Modeling. The main focus of this research is to see if it is possible to predict the scale of damage during ongoing disasters. It is found that setting up weekly MMM and moving the timeline draws significance conclusion. When disasters or events occur in future, this research may be the basis of building quick and intuitive indicator to monitor possible effects.

• The Journal of Society for e-Business Studies
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• v.17 no.3
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• pp.117-128
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• 2012

There was a large scale of DDoS(Distributed Denial of Service) attacks mostly targeted at Korean government web sites and cooperations's on March 4, 2010(3.4 DDoS attack) after 7.7 DDoS on July 7, 2009. In these days, anyone can create zombie PCs to attack someone's website with malware development toolkits and farther more improve their knowledge of hacking skills as well as toolkits because it has become easier to obtain these toolkits on line, For that trend, it has been difficult for computer security specialists to counteract DDoS attacks. In this paper, we will introduce an essential control list to prevent malware infection with live forensics techniques after analysis of monitoring network systems and PCs. Hopefully our suggestion of how to coordinate a security monitoring system in this paper will give a good guideline for cooperations who try to build their new systems or to secure their existing systems.

• The Journal of Society for e-Business Studies
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• v.18 no.4
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• pp.169-193
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• 2013

This study investigates time series data on internet banking systems and business performances for 5 large-scale banks : Kookmin, Woori, Hana, City, Shinhan. These banks have the common features that they merged with other banks around 2000, hence they experienced massive IS integration between banks. This study adopted VAR and VECM for identifying Granger causality between the quality of internet banking systems and the performances of banks(operating revenue and cost). The main results are as follows. First, internet banking system impacts positively on the revenues as well as costs of banks. Second, the improvement of internet banking system is instigated by cost part more than revenue part. Hence, the results imply that banks tries to reduce operating costs via internet banking systems, however the systems rather increased the costs of banks, although the systems increased operating revenues of banks too.

• Journal of the Korean Association of Geographic Information Studies
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• v.10 no.3
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• pp.93-103
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• 2007

In order to plunder the Korean Peninsula in earnest, 'Modern Age Korea Topographical Map' of reduced 1:50,000 scale was manufactured within the period of 5 years from 1914 to 1918 through Japanese government-general of Joseson. This map includes all the data representing the life model of Korean Peninsula in the period of the End of Korean Empire, before the modern public construction works had started to seriously develop. This study analyzes the land use change after embedding the coordinates to the image of Modern Age Korea Topographical Map, which includes the scenery of 1910, and then overlaying it with the contemporary map in GIS environment. The results of presented research showed that before modern civil construction works started, the farmlands had lost their competitiveness because of difficult for development hilly areas and frequent floods, the river sites being abandoned and industrial structure change, and were developed into modern city area.

• Journal of Korea Port Economic Association
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• v.34 no.1
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• pp.99-110
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• 2018

This study empirically examines simple methodology to quantify the risk resulted from the uncertainty of bunker price and foreign exchange rate, which cause main resources of the cost in shipping industry during the periods between $1^{st}$ of January 2010 and $31^{st}$ of January 2018. To shed light on the risk measurement in cash flows we tested GBM(Geometric Brownian Motion) frameworks such as the model with conditional heteroskedasticity and jump diffusion process. The main contribution based on empirical results are summarized as following three: first, the risk analysis, which is dependent on a single variable such as freight yield, is extended to analyze the effects of multiple factors such as bunker price and exchange rate return volatility. Second, at the individual firm level, the need for risk management in bunker price and exchange rate is presented as cash flow. Finally, based on the scale of the risk presented by the analysis results, the shipping companies are required that there is a need to consider what is appropriate as a means of risk management.

• Journal of Digital Convergence
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• v.11 no.6
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• pp.113-127
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• 2013

The open market are expanding service quality which was used as rating scale in the field of marketing. In accordance with open market, they convert it to e-service quality and use it. Udo et al.[6] suggested web service quality combining e-SEVQUAL[2] and extended Information Success Model[7]. This study suggests four influence factors of e-service quality in the open market; website privacy and security, web site contents, web site convenience, and images of the open market companies. The study conducted survey on 301 college students and life long education center students in Busan. The study found that all four influence factors have positive effects on the web service quality and ultimately web service quality has beneficial effects on the satisfaction in open market users' information system.

• 전자공학회논문지 IE
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• v.48 no.4
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• pp.69-77
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• 2011

Recently, the public sector information projects have bebn larger in size, sophisticated, and diversified, which make the performance management model be studied continuously. According to the research and understanding on this, there are discontents resulted from poor requirements managements, schedule delays, budget overruns, failure to achieve expected goals, although there are increase the scale of projects and the number of information systems than ever before. it makes the requirement for the plan to manage significant risk factors systematically. So in this study, we will understand the risks which have been recognized by professionals and managers in public sector projects for enhancing the success rate. And the surveys will be conducted for the risk factors in each fields by gathering the opinions of the hands on workers in public sector project support team such as S company, L company. Finally, the correlation index between the risks and the other project fields would be clear by this survey.

• Journal of the Institute of Electronics and Information Engineers
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• v.51 no.9
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• pp.139-147
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• 2014

In this paper, we present a novel method for simultaneous detection and tracking of multiple objects using dual-layer particle filtering. The proposed dual-layer particle sampling (DLPS) algorithm consists of parent-particles (PP) in the first layer for detecting multiple objects and child-particles (CP) in the second layer for tracking objects. In the first layer, PPs detect persons using a classifier trained by the intersection kernel support vector machine (IKSVM) at each particle under a randomly selected scale. If a certain PP detects a person, it generates CPs, and makes an object model in the detected object region for tracking the detected object. While PPs that have detected objects generate CPs for tracking, the rest of PPs still move for detecting objects. Experimental results show that the proposed method can automatically detect and track multiple objects, and efficiently reduce the processing time using the sampled particles based on motion distribution in video sequences.