• Journal of Digital Convergence
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• v.15 no.8
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• pp.489-500
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• 2017

The purpose of this study is to investigate the factors affecting health promotion behavior according to emotional labor, depression, and self - efficacy of taxi drivers. Study participants were 102 Taxi drivers in urban areas, and the data were collected through self-reported structured questionnaire. According to the results, among the variables related to Health promotion behaviors, Meaningful positive correlations were found among Health promotion behaviors and Emotional Labor, Depression, Self-efficacy, but Emotional Labor and Depression, Self-efficacy and Health promotion behaviors showed positive correlations. Emotional Labor and Self-efficacy, Emotional Labor and Health promotion behaviors, Depression and Self-efficacy, Depression and Health promotion behaviors showed negative correlations. In addition, the factors such as spouse, Emotional Labor, Self-efficacy explained Health promotion behaviors 57%. Based on the findings from the study, in order for taxi drivers to improve health promotion behaviors education program should be made with strategies increasing Self-efficacy and decreasing Emotional labor.

• Journal of Digital Convergence
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• v.18 no.5
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• pp.325-336
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• 2020

This study identified the perception and coping ability of an emergency involving the elderly for facility directors in charge of services in long-term care facilities, and used it as basic data for developing educational programs and policy data for improving the ability of emergency facilities. The subjects were 192 directors of elderly care facilities and home care centers. Data were collected from March 15 to April 20, 2019 and analyzed using the SPSS WIN 25.0 program. Data analysis was performed using t-test, One-way ANOVA, Pearson's correlation coefficient, Scheffe, and multiple linear regression. The results revealed 97.4% of emergency experience, 6.16 points of emergency perception, and 62% of correct answers, and coping ability of an emergency was 69.61 ± 13.537. The negative correlation between emergency experience and ability to cope with emergencies(r=-.202, p= .005) was the long-term care facility type(β = 8.253, p<.001). Overall, an education program considering the type of long-term care facility is needed when applying emergency education for facility directors.

• Journal of the Korea Society for Simulation
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• v.17 no.2
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• pp.31-47
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• 2008

As OWL(Web Ontology Language) has been selected as a standard ontology description language by W3C, many ontologies have been building and developing in OWL. The lena developed by HP as an Application Programming Interface(API) provides various APIs to develop inference engines as well as storages, and it is widely used for system development. However, the storage model of Jena2 stores most owl documents not acceptable into a single table and it shows low processing performance for a large ontology data set. Most of all, Jena2 storage model does not consider hierarchical structures of classes and properties. In addition, it shows low query processing performance using the hierarchical structure because of many join operations. To solve these issues, this paper proposes an OWL ontology relational database model. The proposed model semantically classifies and stores information such as classes, properties, and instances. It improves the query processing performance by managing hierarchical information in a separate table. This paper also describes the implementation and evaluation results. This paper also shows the experiment and evaluation result and the comparative analysis on both results. The experiment and evaluation show our proposal provides a prominent performance as against Jena2.

• Journal of Convergence for Information Technology
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• v.10 no.5
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• pp.75-82
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• 2020

This study is a descriptive research study to identify Unmet Dementia Information Needs (UDIN) for caregivers of dementia patients at Dementia Relief Center and to understand the effectiveness of the program for workers. The subjects were 114 caregivers and 217 practitioners from dementia relief centers in 25 autonomous districts of S city from November 1, 2019 to January 31, 2020. The UDIN questionnaire is a 7-point Likert scale. The Crisis Management Questionnaire is a Likert 5-point scale consisting of 10 questions from 6 categories. As a result of the study, the proportion of depressed caregivers experiencing UDIN was 12.3times higher than those who did not (p<.001). The program effectiveness was 8.98times better than those who perceived the lack of risk management as good (p=.004), and social workers were 2.81times better than nurses (p=.091). It is necessary to conduct interactive operations to meet the needs of the community residents by listening to their diverse opinions rather than simply implementing a one-sided policy to raise the service of a dementia relief center to the highest level in a short period of time.

• Journal of Hospice and Palliative Care
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• v.14 no.1
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• pp.34-41
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• 2011

Purpose: The purpose of this study was to analyze the reason to select complementary and alternative therapy for terminally ill cancer patients. Methods: The data were collected from 21 terminal cancer patients and families through the in-depth interview. Data analysis were performed by the Colaizzi's phenomenological method (1976). Results: The reason to select complementary and alternative therapy for terminal cancer patients and families was then categorized with 4 elements; Awareness of limitations in contemporary medical treatments, Belief in effectiveness of the CAM, Satisfaction with emotional needs of family members, and Disbelief due to negative attitudes of physicians. The result indicated the following 9 themes expectation for a complete cure, uncertainty in hospital treatments, complementary method for management of side effect of chemotherapy, alleviation of symptoms and life-sustaining, fear for side effects of cancer treatments, belief in earned information, referrals by other, responsibility of family, and dissatisfaction with negatine attitudes of physicians. Conclusion: Physicians should provide a sufficient explanation and try to effectively communicate with clients about hospice and palliative service and the CAM. We strongly realized that concerns about patients' best care and satisfactions with family's needs should be understood.

• Journal of Hospice and Palliative Care
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• v.13 no.4
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• pp.243-251
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• 2010

Purpose: This study was conducted to investigate how nurses who take care of terminal patients perceive fluid therapy and how this therapy is currently being used in hospitals. Methods: This survey included 200 nurses, 87 of whom were working in the oncology units of 3 university hospitals in Seoul, Korea, and 113 were working in 18 hospice centers. The data for this study were collected by means of structured questionnaires and analyzed by using the Statistical Analysis System software. The differences in perception towards fluid therapy between nurses working in oncology units and those working in hospice centers were examined using the $x^2$ test and analysis of covariance. Results: Fluid therapy was perceived more negatively by the nurses from hospice centers than by those from oncology units. Continuous subcutaneous infusion was used in hospice centers, but not in oncology units. In addition, the average amount of fluid infused daily differed significantly between the oncology units and hospice centers. Conclusion: Our results show that there were differences in the perception towards fluid therapy between nurses in different clinical settings. Nurses caring for terminal and palliative care patients should not simply provide or withhold fluid therapy, but rather develop a wider range of views on fluid therapy, focusing on effective alternative interventions.

• Journal of Hospice and Palliative Care
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• v.17 no.2
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• pp.75-84
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• 2014

Purpose: This study was conducted to explore predictors of health status of family caregivers of hospice patients. Methods: This study included 118 family caregivers of patients who were admitted to the hospice ward of three general hospitals in D city. The collected data were analyzed by frequency, percentage, t-test, one-way ANOVA, Pearson's correlation coefficients, and stepwise multiple regression using the SPSS WIN 18.0 program. Results: The mean score for overall health of family caregivers was 2.68 (${\pm}0.42$). Mean scores for variables related to health were 2.55 (${\pm}0.37$) for sleep quality, 1.91 (${\pm}0.41$) for anxiety and 2.78 (${\pm}0.33$) for hope. Variables such as sleep quality, gender, anxiety and hope explained 59.8% of variance among family caregivers' health conditions. Conclusion: These results suggest the need for nurses to search for ways to promote health of hospice patients' family caregivers, such as improving the quality of sleep, easing their anxiety and encouraging hope.

• Applied Chemistry for Engineering
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• v.29 no.2
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• pp.138-146
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• 2018

Photodynamic therapy (PDT) is a great potential approach for the localized tumor removal with fewer metastatic potentials and side effects in treating the disease. In the treatment process, a photosensitizer (PS) that absorbs a light energy to generate reactive oxygen is essential. In general, a visible light is used as a light source of PDT, so that side effects from the light source are inevitable. For this reason, upconversion nanoparticles (UCNPs) using near-infrared (NIR) as an excitation source are attracting attention in the field of disease diagnosis and treatment. UCNPs have the low cytotoxicity and phototoxicity, and also advantages such as deep tissue penetration and low background autofluorescence. For PDT, UCNPs should be combined with a PS which absorbs the light energy from UCNPs and transfers it to the surrounding oxygen to produce reactive oxygen. In addition, the therapeutic efficacy can be improved by modifying nanoparticle surfaces, adding anti-cancer drugs, or combining with photothermal therapy (PTT). In this review, we summarize the recent research to improve the efficiency of PDT using UCNPs.

• Journal of Science Education
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• v.32 no.2
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• pp.121-145
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• 2008

The purposes of this study were to identify the misconceptions that students have on the magma and plate tectonics and to present the implications in developing textbooks as well as related curriculum of high school textbooks. Data were collected through questionnaire, consisting of some questions, short essays, and descriptive drawings, developed by the research team. A total of 140 high school students(9th graders) responded to those questionnaires and were interviewed for further information. It was reported that participants displayed various misconceptions related to magma and plate tectonics. The identified misconceptions are as follows: For the definition of magma, the 31% of participants misunderstood magma as lava. In respect to the generative mechanism of magma at subduction zone, over 90% of students responded that it is generated by frictional heat. The source of misconceptions were identified as a result from textbooks and related reference-books. For the concept of plates, 87% of students conceived 'crust or a lower part of the plates' as 'plates'. Most participants hold the right concept of oceanic ridge, whereas, 66% of them considered 'rift valley' as either 'divergence of continental plates' or 'converging boundary'. 63% of them defined 'collision boundary of continental plate' as either 'subduction zone' or 'diverging boundary'. For the definitions of the trench and Benioff zone, 86% of students responded them as the place of subduction or differing density between two converging plates. The students' misconceptions were resulted from the errors and insufficient explanation, inappropriate figures, and data presented in textbooks, reference-books, lecture, and web sites. The results of this study are implied to contribute the improvement of students' misconceptions.

• Tunnel and Underground Space
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• v.16 no.2 s.61
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• pp.179-188
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• 2006

The vibration or/and noise generated by blast operations might cause not only structural damage to properties but mentally also to humans and animals. For that reason, maximum permitted vibration and noise levels are set by sensitivities of structures and they are used for the management of blast vibration. It is known that the fish lived in water are more sensitive to vibration than land animals, and thus the adverse impact of the blasting on fish farms should be very concerned. This study investigated the vibration and noise levels at a large eel farm located some 840 meters of the blasting site through the large real-scale experiments of blastings, prior to conducting the actual blasting. As a result, it was found that the noise met the requirement to be within maximum permitted level, while the ground vibration exceeded the permitted vibration. Accordingly, the impact of the excess vibration was investigated by an existing empirical method and verified by a new three dimensional numerical analysis. In this study, such an inspection process was briefly described, and a method was suggested for the examination of possible adverse effects from blasting on vibration-sensitive structures like the eel farm. The study also introduced a design method that controls the blast effects - ground vibration and noise.