• The Journal of the Korea Contents Association
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• v.12 no.8
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• pp.47-58
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• 2012

In this paper, we propose a continuous k-nearest neighborhood query processing method for updating the query results in real-time over mobile peer-to-peer environments. The proposed method disseminates a monitoring region to efficiently monitor the k-nearest neighbor peers. The Monitoring Region is created to assure at least k peers as the result of the query within the time range using the vector of neighbor peers. In the propose method, the monitoring region is valid for a long time because it is calculated by the vector of neighbor peers of the query peer. Therefore, the proposed method decreases the cost of re-processing by monitoring region invalidation. In order to show the superiority of the proposed method, we compare it with the previous schemes through performance evaluation.

• The Journal of the Korea Contents Association
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• v.16 no.8
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• pp.247-256
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• 2016

The purpose of this study was to identify the mediating effect of hope relationships among social support, social stigma and quality of life. It was conducted to measure social support, social stigma, hope and quality of life from 197 HIV-infected people. Data collection was carried out through one-on-one interviews by counselling nurse. The mediating effect was analyzed through Structure Equation Model using AMOS 21.0 program and indirect effect was analyzed by bootstrapping method. As a result of analysis, first, social support had a significant positive effect on quality of life. But social stigma had a significant negative effect on quality of life. Second, social support had a significant positive effect on hope. But social stigma had a significant negative effect on hope. Third, hope had significant mediating effect within the influence of social support and social stigma on quality of life. It is suggested to develop and apply comprehensive intervention program for improve quality of life of HIV infected people in community.

• The Journal of the Korea Contents Association
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• v.14 no.11
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• pp.810-819
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• 2014

Objectives: The aim of this study was to investigate the sleep quality and depression, and relationship between sleep quality and depression of nursing students. Methods: A cross-sectional, descriptive study was conducted. The subjects were 268 nursing students from a University. Data were collected on September, 2012 by using a structured questionnaire. The data were analyzed using SPSS/WIN 19.0 program. Results: The mean score of sleep quality was 6.65, among the students, 86.6% had sleep problem. The mean score of depression was 16.89, 25.4% of the students had mild depression, and 20.5% had severe depression. Sleep quality showed no significant differences, meanwhile depression showed significant differences according to the school year, satisfaction level with nursing major and university. There was a significant relationship between sleep quality and depression. Conclusions: These results suggest that some of the nursing students have sleep problem and depression. Therefore, it is needed to develop various nursing intervention strategies to improve physical, psychological health of the nursing students.

• The Journal of the Korea Contents Association
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• v.18 no.4
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• pp.516-529
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• 2018

The purpose of this study is to investigate the effect of perceived medical service quality by outpatient on hospital image, satisfaction, and re-use intention in a general hospital. A total of 176 questionnaires were administered to outpatients who presented to a S general hospital in Daejeon. The results of this study are as follows. First, medical service quality had significant effects on re-use intention, satisfaction, and hospital image. Second, the mediating effect of satisfaction on the relationship between medical service quality and re-use intention was not significant but the mediating effect of hospital image on the relationship was significant. Third, satisfaction and hospital image had significant effects on re-use intention. Consequently, this study verified the influence of perceived medical service quality by outpatient on hospital image, satisfaction, and re-use intention in a general hospital. Further, considering that hospital image, rather than satisfaction, mediates the relationship between perceived medical service quality and re-use intention, it suggests that much more general satisfaction is required in the marketing activities of hospitals.

• The Journal of the Korea Contents Association
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• v.9 no.1
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• pp.428-437
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• 2009

This study was to analyze the effect of service encounter and service quality, customer satisfaction in the golf range. This subject who answered to giver questionaire was 291 persons. The result of reliability check up was here below; Chronbach' ${\alpha}=.817{\sim}.914$. To analyze materials, reliability analysis, factor analysis, correlation analysis, multiple regressions were used as statistic analysis techniques.On the basis of the results, the conclusions were as follows; Firstly, there was a significant influence between service encounter and service quality. Secondly, there was a significant influence between service encounter and customer satisfaction. Lastly, there was a significant influence between service quality and customer satisfaction.

• The Journal of the Korea Contents Association
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• v.16 no.2
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• pp.503-512
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• 2016

The purpose of this study was to examine the impact of socioeconomic status on quality of life(QOL) among breast cancer survivors. The data were from breast cancer survivors in their forties, among whom the prevalence in terms of age was the highest in Korea. A total of 607 cases were analyzed and the mean scores of QOL measured by FACT-B were 93.75(SD=21.50). After controlling for the other socio-demographic and medical variables, QOL was significantly correlated to income and job type, which confirms the association between high socioeconomic status and better QOL. Specifically, groups with higher income($${\geq_-}4$$ million won/month, ${\beta}=0.11$, p= .03) and groups with self-employed(${\beta}=0.10$, p= .01) or professional/managerial(${\beta}=0.17$, p< .001) job type showed significantly better QOL. The need for more attention and support, including formal and informal resources, for breast cancer survivors with low socio-economic status and the implication for practice were discussed.

• The Journal of the Korea Contents Association
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• v.18 no.7
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• pp.350-361
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• 2018

This study investigated the mediating effect of social capital between social workers' professionalism and service quality. By utilizing a convenience sampling method, a survey data form 276 social workers in Chungbuk province was analyzed. Results of descriptive statistics found that professionalism of social workers is 3.36, subtype of social capital among network being 3.43, credibility is shown for 3.67, and quality of service is confirmed for 4.00points in 5-point Likert scales. Both subtypes of social capital - network and credibility - showed mediating effects in the relations between professionalism and service quality. That is, a causal path of professionalism, social capital and service quality was confirmed by the data. Based on these results theoretical and practical implications for enhancing the level of social support and service quality of social services.

• The Journal of the Korea Contents Association
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• v.7 no.7
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• pp.50-59
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• 2007

This paper describes a question analysis and expansion based on semantics for on efficient information retrieval. Results of all information retrieval systems include many non-relevant documents because the index cannot naturally reflect the contents of documents and because queries used in information retrieval systems cannot represent enough information in user's question. To solve this problem, we analyze user's question semantically, determine the answer type, and extract semantic features. And then we expand user's question using them and syntactic structures which are used to represent the answer. Our similarity is to rank documents which include expanded queries in high position. Especially, we found that an efficient document retrieval is possible by a question analysis and expansion based on semantics on natural language questions which are comparatively short but fully expressing the information demand of users.

• The Journal of the Korea Contents Association
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• v.15 no.1
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• pp.221-232
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• 2015

The purpose of this study was to identify factors that influence school adjustment in male high school students. The participants were 569 male high school students (1th and 2nd grade) in A city. We analyzed quality of life, family strength, self-resilience, and school adjustment of subjects. Data were analyzed using descriptive statistics, t-test, ANOVA, Pearson correlation coefficients and multiple regression with the SAS program. The result of this study was that school adjustment was significantly different by school achievement, financial abilities, job of father, scholarship of mother, smoking and drinking alcohol, suicidal ideation and suicide attempts. The school achievement, suicidal ideation, and other quality of life, family strength, self-residence explained 61.4% of school adjustment. Based on the results, if we develop the program which focusing on quality of life, family strength, self-resilience, we could make a meaningful improvement of school adjustment of high school student.

• The Journal of the Korea Contents Association
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• v.14 no.10
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• pp.454-462
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• 2014

With the development of location aware technologies and mobile devices, location-based services have been studied. To provide location-based services, many researchers proposed methods for processing various query types with Mapreduce(MR). One of the proposed methods, is a Reverse k-nearest neighbor(RkNN) query processing method with MR. However, the existing methods spend too much cost to process the continuous RkNN query. In this paper, we propose an efficient continuous RkNN query processing method with MR to resolve the problems of the existing methods. The proposed method uses the 60-degree-pruning method. The proposed method does not need to reprocess the query for continuous query processing because the proposed method draws and monitors the monitoring area including the candidate objects of a RkNN query. In order to show the superiority of the proposed method, we compare it with the query processing performance of the existing method.