• Membrane Journal
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• v.29 no.2
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• pp.80-87
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• 2019

Dye-sensitized solar cells (DSSCs) have attracted great attention as sustainable energy devices. The efficiency and long-term stability of DSSCs are greatly influenced by electrode materials and electrolytes. In this review, we focused on the electrolytes of DSSCs. Polymer electrolyte membranes have been proposed as an alternative to conventional liquid electrolytes in DSSCs. Conventional liquid electrolytes can exhibit a high efficiency, but due to some problems such as poor long-term stability of device and leakage of liquid, much interest in polymer electrolyte membranes continues to rise and the papers on polymer electrolytes membranes have been extensively reported recently. This review covers the concept and development of polymer electrolyte membranes for DSSCs, and discusses the efficiency and electrochemical properties of DSSCs, highlighting the modification of polymer matrix, the introduction of additives such as organic-inorganic plasticizers and ionic liquids.

• 한국노년학
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• v.32 no.4
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• pp.961-973
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• 2012

The aims of this study are to identify levels of diabetes self-care activities and find associated factors of the elderly with Type 2 diabetes. The participants for this study were 264 elderly Koreans over 65 years old who visited one general hospital in S city in South Korea for their medical treatment. In the results, there are few statistically significant differences in general characteristics and disease related variables according with diabetes self-care activities (DSCA). DSCA showed negative correlation with depression (r=-.278, p=.033) and positive correlation with ADLs(r=.310, p=.013)and IADLs(r=.415, p=.001). Therefore, the findings of this study suggest implementing self-care activities to the elderly with diabetes based on their psychological factors (depression) and functional capacities (ADL and IADL). In addition, the advanced research will be needed for developing tailored nursing educations and interventions to improve diabetes self-care activities of elderly patients.

• Journal of Digital Convergence
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• v.16 no.12
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• pp.449-457
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• 2018

This study examined the effect of communication competency and job stress of nurses working in long term care hospitals on turnover intention and to verify the effect of emotional intelligence control on the relationship among communication competency, job stress and turnover intention. The subjects consisted of 240 nursing students, and data were collected during from February 1 to February 28, 2018. The data were analyzed with descriptive statistics and Pearson's correlations that used IBM SPSS WIN 20.0 program and the analysis of control effect was made by using Hierarchical Multiple Regression Analysis. The result of this study can be summarized as follows. The turnover intention was positively correlated with job stress. The factors which had effect on turnover intention were pay satisfaction, job stress and age. Based on the results of this study, it is necessary to develop a systematic program that reflects clinical characteristics and education in order to reduce the turnover intention of the nurse.

• The Journal of the Korea Contents Association
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• v.18 no.11
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• pp.87-97
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• 2018

The purpose of this study was to investigate factors affecting nursing work outcome of nurses in small and medium-sized hospitals. The data were collected from 131 nurses working in the four small and medium-sized hospitals located K city using self-reported questionnaires and October 3 2016 to November 1 2016. Nursing work outcome had a significant positive effect on positive psychological capital, professional self-concept and self-leadership. The multiple regression analysis shows that the factors affecting nursing work outcome were positive psychological capital and self-leadership, and their explanation was 44.5%. Based on this research, it is believed that to improve nursing work outcome of nurses in small and medium hospitals, it will be necessary to develop diverse programs to lead nurses themselves positively, responsibly and autonomously.

• Journal of Digital Convergence
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• v.16 no.12
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• pp.351-358
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• 2018

The purpose of this study was to investigate job stress, job satisfaction and health behaviors of workers in information and communication industry. The data were collected using questionnaire from 138 workers who the information and communication industry in the J city. The analysis of the data was done through SPSS 20.0/window statistical analysis. Upon examining the correlation between Job stress and job satisfaction, the correlation was significant(r=-.69, p<.001), job stress and sleeping showed a significant relationship although small. Smoking and drinking alcohol of health behaviors were not significant. The result of the multiple regression indicates the job satisfaction(${\beta}=-.69$, p<.001) predict 47%(F=121.8, p<.01). Based on the results of this study, we propose a systematic health promotion program that can improve job satisfaction through job stress management instate of management for health habits of the workers who work in the information communication industry.

• Journal of Digital Convergence
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• v.17 no.2
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• pp.265-273
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• 2019

The Purpose of this study was to investigate the attitude and confidence of patient safety in undergraduate healthcare professions students. The subjects consisted of 145 grade 3,4 students who have had clinical practice in nursing and emergency medical technician schools in a J province from June 1st to 30th in 2016. Data were analyzed with SPSS 21.0 using descriptive statistics. The results of the study showed that the attitude of nursing students were more positive, but there was no difference in patient safety self-confidence and patient safety education experience, and the students who had experienced medical errors saw positive attitude and self-confidence. Based on the results of this study, I propose case-based multidisciplinary contents development to nurture emergency healthcare professions

• The Journal of the Convergence on Culture Technology
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• v.4 no.4
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• pp.57-65
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• 2018

A descriptive correlation study was conducted to identify the factors of health promotion behaviors among adolescents. Participants were 643 students in a high school. Data were collected using a self administered questionnaire. Participants' health promotion behaviors were relatively high. Among sub-domains of health promotion behaviors, infectious diseases prevention was the highest domain and accident prevention was the lowest domain. Participants' smoking, self-efficacy, and social support were statistically significant factors to explain their health promotion behaviors and these variables accounted for 38.0% variance of health promotion behaviors among high school students. Among the variables that were statistically significant, social support was the most explanatory. Conclusions: Accident prevention education should be strengthened in health promotion program for adolescents. More attention is needed for health promotion behaviors among smoking group adolescents. Moreover, we confirmed the importance of social support from school, family and community to improve health promotion behaviors among adolescents.

• The Journal of Korean Institute of Electromagnetic Engineering and Science
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• v.29 no.12
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• pp.915-923
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• 2018

A concrete embedded antenna design is proposed for probing the durability of a building at an industrial scientific medical band of 902~908 MHz. The proposed antenna is designed with a stacked slot patch structure for lower impedance variation to a dielectric constant of concrete, as a dielectric constant difference is derived from the moisture content. The proposed structure has a wider bandwidth when a parasitic patch structure is used, which reduces antenna performance degradation resulting from the moisture content of concrete. The measured voltage standing wave ratio of the proposed structure is less than 2 and the beam width is approximately $80^{\circ}$, whereas the gain is greater than 7 dBi. The proposed antenna is fabricated with a rectangle-type concrete block, which is simulated and measured for return loss and antenna gain.

• Journal of Convergence for Information Technology
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• v.9 no.2
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• pp.55-64
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• 2019

The purpose of this descriptive research is to get basic data for educational program after investigating convergent effect of psychological capital on learning satisfaction of nursing freshmen. Using SPSS 21, T-test, ANOVA, Pearson's correlation coefficient and hierarchical multiple regression of the 164 collected data were carried out. The mean scores of psychological capital and learning satisfaction were above the middle, and the 'hope' was the highest among subdomains of psychological capital. There was a positive correlation between psychological capital and learning satisfaction(r=.665, p<.001). School performance(${\beta}=.311$), school life satisfaction(${\beta}=.191$) and psychological capital(${\beta}=.522$) were the significant factors of learning satisfaction in hierarchical multiple regression(F=37.651, p=.004). The explanatory rate of variables on learning satisfaction was 57.4%. It is needed applying these results in developing learning satisfaction programs, but it isn't appropriate to generalize these results conducted on nursing freshmen in one university.

• The Journal of the Korea Contents Association
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• v.19 no.4
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• pp.120-128
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• 2019

Purpose: This study is a retrospective descriptive study to investigate the factors affecting sleep quality of Obstructive Sleep Apnea (OSA) patients. Methods: Data were collected from questionnaires and electronic medical records of 176 patients with obstructive sleep apnea were reviewed from 2017 to 2018. The collected data was analyzed into descriptive statistics, t-test, Pearson's correlation, and multiple regression analysis. Results: The mean age of the subjects was 49.37 years and 94.4%(n=166) had low sleep quality. The quality of sleep of the OSA patients had correlations with daytime sleepiness, and depression. The significant factors influencing quality of sleep were Gender(${\beta}=.18$, p<.004), depression(${\beta}=.50$, p<.001), dry mouth (${\beta}=.15$, p<.016), Headache(${\beta}=.17$, p<.008), explained 37.1% of the variance. Conclusion: To improve their sleep quality, required for OSA patients who have the depression, daytime sleepiness.