• Journal of Digital Convergence
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• v.17 no.6
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• pp.257-265
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• 2019

This study is a descriptive study to investigate the effects of communication competence and compassionate competence on academic self-efficacy of nursing students. The subjects of this study were 131 nursing students and the data collection was from November 5 to 30, 2018. Data was analyzed by descriptive statistics, t-test, correlation analysis, and hierarchical regression analysis. Significant relationships were found among communication competence and compassionate competence and academic self-efficacy. Motivation for admission, adaptation of nursing, participation on practice and compassion competence were found to academic self-efficacy. Therefore, in order to increase the academic self-efficacy it is necessary to make efforts to increase the participation on practice and to improve compassion competence as a strategy to increase academic self-efficacy of nursing students.

• The Journal of the Korea Contents Association
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• v.19 no.7
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• pp.291-303
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• 2019

For cities with ancient buildings at core areas, night lighting is an effective means to demonstrate their history and culture. In this regard, night scenes of these ancient buildings are evaluated from multiple aspects, such as color rendition, brightness ratio affected by ambient light and technological realization of lighting facilities. This study builds a visual evaluation system for night scenes of ancient buildings based on three dimensions, namely ancient architecture carrier performance, visual perception and technological realization, and explains specific evaluation sub-criteria one by one. In addition, this study adopts Analytic Hierarchy Process (AHP) to analyze the impact of each sub-criteria item on the weight of the whole evaluation system, and conducts a consistency test to show that the evaluation system meets the reasonable requirements of hierarchy setting. Moreover, relative importance of each sub-criteria item may be determined based on their corresponding weights.

• The Journal of the Korea Contents Association
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• v.19 no.1
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• pp.329-338
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• 2019

The purpose of this study was to examine the degree of aging anxiety and subjective well-being, and identify the effect of aging anxiety on subjective well-being among persons with mental disorder. A cross-sectional descriptive study design was used. 107 participants who were diagnosed with schizophrenia or mood disorder were recruited in D and C province. Collected data were analyzed using descriptive statistics, t-test, one-way ANOVA, Pearson correlation and multiple regression with SPSS 23.0 program. Mean score of aging anxiety and subjective well-being were $3.95{\pm}0.80$ and $3.53{\pm}0.73$ respectively. Aging anxiety had significant negative correlation with subjective well-being (r= -.48, p <.001). Aging anxiety, subjective health status, and employment status were significant influencing factors on subjective well-being, and these variables total explained for 31.1%. Therefore, it is necessary to provide a systematic and integrative strategy to cope with the aging anxiety for improving subjective well-being of person with mental disorder.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.20 no.1
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• pp.162-169
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• 2019

This study investigated the risk factors of hypertension among individuals under and over 65 years of age. A total of 6,152 participants were analyzed using the 6th Korean Longitudinal Study of Aging. The collected data were analyzed by Chi-square tests and logistic regression using SPSS 23. The results showed that the subjective health status, diabetes, heart disease, and degree of obesity according to BMI were risk factors affecting hypertension in individuals both under and over age 65. In adults under age 65, chronic lung disease, digestive disease, and drinking were risk factors affecting hypertension. In elderly over age 65, region, arthritis and rheumatic disease, smoking, and cognitive function were risk factors affecting hypertension. There is a need for chronic disease management in Korea due to rapid aging. In particular, it is important to analyze for effective management age-related risk factors affecting steadily increasing hypertension with age. Therefore, it is necessary to manage chronic disease management through social welfare improvement and welfare plans for the elderly, as well as personal management.

• The Journal of the Korea Contents Association
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• v.18 no.11
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• pp.135-145
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• 2018

In online communities, users use comments to exchange their opinions and feelings on various subjects. Communication based on comments is quick and convenient, but sometimes this light-weight characteristic makes users use impolite and aggressive words, which leads to an online conflict. Therefore, it is important to analyze and classify users according to their characteristics in order to predict and take action for this kind of troubles. In this paper, we present several quantitative measures for describing the structures of comments trees based on the assumption that the user characteristics be observed as a form of some structural feature in comment trees of articles in which they posted comments. We examine the distribution of the proposed measures over article posters and commenters, and in addition, we show the effectiveness of the presented structural features by conducting experiments to classify users who have received warnings of the administrator from benign users.

• The Journal of the Korea Contents Association
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• v.19 no.3
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• pp.126-137
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• 2019

This study is a descriptive research that aimed to investigate the relationship among the knowledge, attitude, self-confidence, and ability to perform basic life support of nursing students, and to identify the factors affecting their performance ability of basic life support. The subjects in this study were 85 senior nursing students. And a questionnaire survey and an observation assessment for their ability to perform basic life support were conducted. The data were analyzed by descriptive statistics, t-test, ANOVA, Pearson's correlation coefficient, Multiple Linear Regression with SPSS WIN 23.0 program. Performance ability on Basic life support was found to be in a significant positive correlation with knowledge, self-confidence. Factors affecting the ability to perform basic life support were knowledge, number of training sessions received, and last training time. Therefore, programs for repetitive basic life support training at 3-month intervals should be developed to maintain the performance ability of basic life support.

• The Journal of the Korea Contents Association
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• v.18 no.12
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• pp.281-290
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• 2018

Concerns regarding health problems due to fine dust have rapidly grown in Korea. However, studies on fine dust cognition, knowledge and attitudes were not performed actively. The purpose of this study is to examine college students' cognition, knowledge, and attitudes regarding fine dust in Korea, and to identify the relating factors including self efficacy on theses variables. This study was descriptive research, and 206 college students of 1 university were interviewed with a structured questionnaires. We found that the fine dust cognition score was the highest, and the knowledge and attitude scores were low among college student. According to the logistic regression analysis, grade, past respiratory disease, and self-efficacy were affecting fine dust cognition, and grade, self-efficacy were affecting fine dust knowledge. It is needed to provide educational program for college students to enhance the fine dust knowledge and attitude. It is necessary to include strategy increasing the self-efficacy to the education program.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.23 no.1
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• pp.84-89
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• 2019

JPEG is a most widely used standard image compression technology. This research introduces the JPEG image compression algorithm and describes each step in the compression and decompression. Image compression is the application of data compression on digital images. The DCT (discrete cosine transform) is a technique for converting a time domain to a frequency domain. First, the image is divided into 8 by 8 pixel blocks. Second, working from top to bottom left to right, the DCT is applied to each block. Third, each block is compressed through quantization. Fourth, the matrix of compressed blocks that make up the image is stored in a greatly reduced amount of space. Finally if desired, the image is reconstructed through decompression, a process using IDCT (inverse discrete cosine transform). The purpose of this research is to review all the processes of image compression / decompression using the discrete cosine transform method.

• The Journal of the Korea Contents Association
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• v.19 no.1
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• pp.60-73
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• 2019

This study is a descriptive research study to identify the role conflicts, positive psychological capital, organizational effectiveness, and factors affecting organizational effectiveness of nurses in small hospitals. The subjects of the study were nurses working in three small and medium-sized hospitals located in A city and 255 copies were used for final data analysis. The results showed that the roles of role conflict, isolation, role ambiguity, and resource shortage had a significant negative effect on organizational effectiveness. Role ambiguity and resource shortage of role conflict were significant (-) on positive psychological capital. Positive optimism, positive self efficacy, hope and optimism have a positive (+) effect on organizational effectiveness. Based on the results of this study, it is necessary to develop a variety of programs to reduce role conflict and demonstrate positive psychological capital in order to improve the organizational effectiveness of nurses in small and medium-sized hospitals.

• The Journal of the Korea Contents Association
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• v.18 no.12
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• pp.516-525
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• 2018

The purpose of this study was to investigate the effects of family cohesion and self-care agency on the quality of life in community-dwelling elderly. Using a descriptive survey design, data were collected during September 2-20, 2016 by distributing questionnaires to and retrieving them from 197 elderly participants aged 65 years or older in two senior welfare centers located in "B" metropolitan city. Results showed that family cohesion of community-dwelling elderly was significantly positively correlated with their self-care agency (r=.434, p<.001) and quality of life (r=.544, p<.001), while self-care agency was significantly positively correlated with quality of life (r=.571, p<.001). The factors that had the biggest effect on the quality of life in community-dwelling elderly were identified in the order of self-care agency (${\beta}=0.413$, p<.001) and family cohesiveness (${\beta}=0.365$, p<.001). These variables were found to have an explanatory power of 42.8% for quality of life (F=74.31, p<.001). Therefore, a strategy to improve self-care agency and family cohesion may be helpful in improving the quality of life in community-dwelling elderly.