• Journal of Korean Academy of Nursing
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• v.46 no.5
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• pp.663-674
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• 2016

Purpose: The purposes of this study were to develop and test a prediction model for caregiving experiences including caregiving satisfaction and burden in dementia family caregivers. Methods: The stress process model and a two factor model were used as the conceptual frameworks. Secondary data analysis was done with 320 family caregivers who were selected from the Seoul Dementia Management Survey (2014) data set. In the hypothesis model, the exogenous variable was patient symptomatology which included cognitive impairment, behavioral problems, dependency in activity of daily living and in instrumental activity of daily living. Endogenous variables were caregiver's perception of dementia patient's unmet needs, caregiving satisfaction and caregiving burden. Data were analysed using SPSS/WINdows and AMOS program. Results: Caregiving burden was explained by patient symptomatology and caregiving satisfaction indicating significant direct effects and significant indirect effect from unmet needs. The proposed model explained 37.8% of the variance. Caregiving satisfaction was explained by patient symptomatology and unmet needs. Mediating effect of unmet needs was significant in the relationship between patient symptomatology and caregiving satisfaction. Conclusion: Results indicate that interventions focusing on relieving caregiving burden and enhancing caregiver satisfaction should be provided to caregivers with high levels of dementia patients' unmet needs and low level of caregiving satisfaction.

• The Journal of Korean Academic Society of Nursing Education
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• v.22 no.1
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• pp.96-109
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• 2016

Purpose: The purpose of this study was to explore the levels of disaster preparedness competency in public health workers and identify influential factors on disaster preparedness competency. Methods: The data was collected through self-report questionnaires from a convenience sample of 281 public health workers in 2014 in Korea. The data was analyzed using descriptive statistics, t-test, ANOVA, and multiple regression. Results: The mean disaster preparedness competency score was 2.77 and the mean disaster educational needs score was 4.01. Disaster preparedness competency had a statistically significant difference by gender, position, experience of disaster education in workplace, and experience of BLS education. As a result of the multiple regression analysis, disaster preparedness competency accounted for 11.6% of the variance by gender, experience of disaster education in workplace, and experience of BLS education. Conclusion: The results of this study reveal that gender, strengthening education of disasters in the workplace, and education of BLS should be taken into consideration and integrated when developing an effective educational program in order to enhance disaster preparedness competency in public health workers.

• The Journal of Korean Academic Society of Nursing Education
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• v.20 no.3
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• pp.413-423
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• 2014

Purpose: The purpose of this study was to investigate the relations among emotional intelligence, interpersonal relationship, and job satisfaction among clinical nurses. Methods: Data were collected from 315 nurses who had worked for more than 6 months at five general hospitals by a self-reported questionnaire. The collected data were analyzed with descriptive statistics, t-test, ANOVA, Scheffe-test, Pearson's correlation, and hierarchial regression using SPSS 18.0 program. Results: The mean score of emotional intelligence was 3.42 and the score of self emotional appraisal was the highest. The mean score of interpersonal relationship was 3.44 and the score of intimacy was the highest. The mean score of job satisfaction was 3.04. Emotional intelligence and interpersonal relationship were positively correlated with the job satisfaction. Hierarchial multiple regression analysis showed that use of emotion was the main factor of affecting job satisfaction, which explained 30.8% of the variance for the nurses' job satisfaction together with intimacy, regulation of emotion, position, and monthly salary. Conclusion: These findings indicated that emotional intelligence and interpersonal relationship, especially use and control of emotion and intimacy contributed to nurses' job satisfaction. It is necessary to develop and implement the program for increasing emotional intelligence and interpersonal relationship for improving job satisfaction.

• Korean Management Science Review
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• v.29 no.1
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• pp.153-168
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• 2012

Order allocation is one of the most important decision-making problems of firms having significant influences on performances of themselves and the whole supply chain. Existing researches about order allocation have mainly focused on evaluating capabilities of directly connected suppliers so that it is hard to consider effects and interactions from undirected connections over multiple lower-layers. To alleviate the limitation, this paper proposed a novel approach to order allocation using structural hole. By applying the concept of structural hole to the supply network, we could evaluate the structural supplying powers of firms with respect to both of direct and indirect connections. In the proposed approach, we derived a methodology to measure the potential supplying power of each firm by modifying the effective size as one of the measurements of structural hole and then, proposed its application, the structural hole based order allocation strategy. Furthermore, we conducted the agent based modeling of supply chain to perform the decision-making process of order allocation and simulated the proposed strategy. As a results, by coping with the variance of demand more stably, it could improve the performance of supply chain from the aspects of fill rate, inventory level and demand-supply balance.

• The Journal of Asian Finance, Economics and Business
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• v.2 no.1
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• pp.5-13
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• 2015

This paper aims to provide an overview of customer trust toward Islamic banks, and to study the effect of trust on the selection of Islamic banks services. A total 375 questionnaires were distributed to the three groups of bank customers, i.e. Islamic banks customers, conventional banks customers, and customers of both banks (125 respondents in each group). Trust is measured based on three constructs, namely Ability, Integrity, and Benevolence. To test the hypothesis this study employs Analysis of Variance and Tukey Test. The results show that bank customers have degree of trust towards Islamic banks relatively high enough, although among the respondents had never become customers of Islamic banks. Benevolence as the dimension with the lowest average score revealed the Islamic banks are more believed as a competent and honest bank in carrying out the business than the bank that will work for the benefit of customers. Other findings suggest that degree of trust have significant affects on the decision for using the Islamic banks services. The positive values that embedded in the concepts and systems of the Islamic is the key to improving the competitiveness of Islamic banks.

• Advances in environmental research
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• v.1 no.2
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• pp.153-166
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• 2012

Decolourization potential of white rot fungal organism, coriolus versicolor, was investigated in a batch reactor, for textile dye industry wastewater. The influence of process parameters like pH, temperature, agitation speed and dye wastewater concentration on the decolourization of textile dye wastewater was examined by using Response surface methodology (RSM). The maximum decolourization was attained at: pH- 6.8, temperature - $27.9^{\circ}C$, agitation speed - 160 rpm and dye wastewater concentration - 1:2. From the analysis of variance (ANOVA) results it was found that, the linear effect of agitation speed and dye wastewater concentration were significant for the decolourization of textile dye wastewater. At these optimized condition, the maximum decolourization and chemical oxygen demand (COD) reduction was found to be 64.4% and 79.8% respectively. Various external carbon sources were tried to enhance the decolourization of textile dye wastewater. It was observed that the addition of carbon source enhances the decolourization of textile dye wastewater. Kinetics of textile dye degradation process was studied by first order and diffusional model. From the results it was found that the degradation follows first order model with $R^2$ value of 0.9430.

• Journal of Environmental Science International
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• v.21 no.11
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• pp.1297-1305
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• 2012

Clonal plants combine sexual and clonal reproduction, which contribute differently to plant fitness. Reproductive analyses have highlighted the importance of clonal growth in shaping the spatial genetic structure in Potentilla conferta Bunge, a herbaceous rhizomatic clonal distributed in hot sand dunes. We investigated the reproduction system of P. conferta at two populations in Mongol and three natural populations in Uzbekistan. The measurements of 19 quantitative or qualitative morphological characters were taken on each of total individuals directly from their natural habitats. Some morphological characteristics between Mongolia and Uzbekistan populations showed a slight heterogeneity of variance. Especially, the length of internodes (LFI and LSI) and characteristics of root (LLR and NOR) were shown a significant difference between two countries (P<0.05). P. conferta of Uzbekistan has most ramets at short distance intervals 30~100 cm. In light conditions, P. conferta of Uzbekistan was significantly less resilience than P. conferta of Mogol. In drought conditions, although there was not shown significant difference, P. conferta in Uzbekistan was less resilience than that in Mogol. The core analysis indicates that P. conferta in Uzbekistan is the more resistant than that of Mongol and seems to do by sexual reproduction strategy during several strong environmental disadvantages such as drought events.

• Journal of Environmental Science International
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• v.18 no.11
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• pp.1225-1234
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• 2009

The aim of this research was to apply experimental design methodology in the optimization condition of electrochemical oxidation of Rhodamine B(RhB). The reactions of electrochemical oxidation were mathematically described as a function of parameters amounts of current, NaCl dosage, pH and time being modeled by the use of the central composite design, which was used for fitting quadratic response surface model. The application of response surface methodology using central composite design(CCD) technique yielded the following regression equation, which is an empirical relationship between the removal efficiency of RhB and test variable in actual variables: RhB removal (%) = 3.977 + 23.279$\cdot$Current + 49.124$\cdot$NaCI - 5.539$\cdot$pH - 8.863$\cdot$time - 22.710$\cdot$Current$\cdot$NaCl + 5.409$\cdot$Current$\cdot$time + 2.390$\cdot$NaCl$\cdot$time + 1.061$\cdot$pH$\cdot$time - $0.570{\cdot}time^2$. The model predicted also agree with the experimentally observed result($R^2$ = 91.9%).

• Journal of East-West Nursing Research
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• v.26 no.1
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• pp.71-79
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• 2020

Purpose: The purpose of this study was to examine the effect of head nurses' authentic leadership to nurses' organizational politics perception and organizational silence. Methods: A descriptive research design was used with a convenience sample of 201 nurses. Data were collected from Aug 7 to Sep 13, 2018 using self-reported questionnaires. Data were analyzed using descriptive statistics, t-test, ANOVA, Pearson's correlation coefficient, and multiple regression analysis. Results: The mean scores of authentic leadership of the head nurses perceived by nurses and nurses' organizational politics perception and organizational silence were 3.44 out of 5, 2.57 out of 5 and 2.62 out of 5, respectively. Nurses' organizational silence was negatively correlated with authentic leadership of the head nurse and positively correlated with nurses' organizational politics perception. Factors influencing on nurses' organizational silence were organizational politics perception, clinical career, authentic leadership of the head nurses and work life satisfaction which explained 38% of the variance. Conclusion: Based on the finding of this study, it is necessary to develop education and intervention programs in order to improve unreasonable and unfair job environment, enhance head nurses' authentic leadership, manage nurses' careers appropriately and raise the level of their work life satisfaction.

• Korean Journal of Rural Living Science
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• v.10 no.2
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• pp.37-51
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• 1999

The objectives of this study were to understand the working stress of rural women and their coping strategies, and to provide basic data related with rural welfare policy. The data were obtained through 318 samples of rural women under sixty years old who work full-time at their farms with their husbands. The questionnaire employed Likert-type scale with four-point, and then the data were analyzed by statistical methods of frequency, percentage, mean score, analysis of variance, t-test and Duncan test through SAS program. The significance level was p ＜ .05. The results of this study are as follows ; 1) The average stress level of rural women was over 2.9 points out of 4. 2) The stress level showed meaningful correlation with such variables as age, education, perception on economic status, and recognition by their husbands and other family members. The rural women who are over forty years old, below high school, disregarded from their family members were marked high stress level. 3) The level of rural women's stress coping strategies was quite as low as 1.95 out of 4. 4) The level of coping strategies showed meaningful correlation with such socio-demographic variables as age, perception on economic status and job satisfaction level. Those who aged over 40, perceives low economic staus, lives together with husbands'parents, and shows “average” job satisfaction scored significantly lower coping strategy levels. 5) The level of stress didn't indicate significant relation with the type of coping strategy.