• Structural Engineering and Mechanics
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• v.54 no.3
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• pp.393-417
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• 2015

In this paper an 8-node quadrilateral assumed stress hybrid Mindlin plate element with $39{\beta}$ is presented. The formulation is based on complementary energy principle. The proposed element is free of shear locking and is capable of passing all the patch tests, especially the non-zero constant shear enhanced patch test. To accomplish this purpose, special attention is devoted to selecting boundary displacement interpolation and stress approximation in domain. The arbitrary order Timoshenko beam function is successfully used to derive the boundary displacement interpolation. According to the equilibrium equations, an appropriate stress approximation is rationally derived. Particularly, in order to improve element's accuracy, the assumed stress field is derived by employing $39{\beta}$ rather than conventional $21{\beta}$. The resulting element can be adopted to analyze both moderately thick and thin plates, and the convergence for the very thin case can be ensured theoretically. Excellent element performance is demonstrated by a wide of experimental evaluations.

• Research in Community and Public Health Nursing
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• v.28 no.2
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• pp.216-225
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• 2017

Purpose: The purpose of the study was to analyze the effects of self-care behavior, empowerment, and social support on glycosylated hemoglobin in patients with type 2 diabetes. Methods: The data were collected during the period of July 1 to July 31, 2016. In total, 172 participants were recruited from outpatients who had been diagnosed with type 2 diabetes at a health care center, a health promotion center at National Health Insurance Corporation, and a tertiary hospital. Statistical data were analyzed with SPSS 20.0 using frequency analysis, t-test, ANOVA, $Scheff{\acute{e}}$ test, Pearson's correlation coefficients, and hierarchical regression analysis. Results: The study results showed that self-care behavior (${\beta}=-.34$, p<.001), empowerment (${\beta}=-.34$, p<.001), and social support (${\beta}=-.20$, p=.018) were found to be influential factors affecting glycosylated hemoglobin, with an overall descriptive power of 69%. Conclusion: Self-care behavior, empowerment, and social support are considered to be important factors in blood glucose management for the patients with type 2 diabetes. Therefore, self-caring blood glucose programs and internal synchronizing education through social support and empowerment need to be improved.

• Journal of muscle and joint health
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• v.24 no.1
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• pp.14-23
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• 2017

Purpose: The purpose of this study was to identify the factors affecting the perceptions of patient safety culture, safety care knowledge, and safety care activity among nurses at orthopedic hospitals. Methods: Data were collected during Feb. 16 and Feb. 26, 2017, from 195 nurses of 9 small to medium sized orthopedic hospitals. Questionnaires about patient safety culture, safety care knowledge and activity were used. Data were analyzed by descriptive statistics, t-test, ANOVA, $Scheff\acute{e}$ test, Pearson's correlation coefficient, and stepwise multiple regression. Results: The safety care activity was positively correlated with perceptions of patient safety culture (r=.50, p<.001) and knowledge (r=.48, p<.001). Factors that had influence on the safety care activity were the patient safety culture (${\beta}=.30$, p<.001), age (${\beta}=.27$, p<.001), and knowledge of the safety activity (${\beta}=.21$, p=.004). The patient safety care activity was explained 36.6% by those factors. Conclusion: To enhance the patient safety care activity, it should be provided the environment and open communication for the perceptions of patient safety culture and the in service education program for safety care knowledge.

• Journal of Korean Clinical Nursing Research
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• v.25 no.2
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• pp.133-141
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• 2019

Purpose: This study aimed to examine the effects of compassion competence and organizational commitment on customer orientation in hospital nurses. Methods: The participant of this study was 223 nurses who have worked at a tertiary hospital in Chungcheong Province for at least one year. The general characteristics, compassion competence, organizational commitment, and customer orientation of the participants were collected, using self-reported questionnaires, from June 15 to June 29, 2018. The data were analyzed by descriptive statistics, independent t-test, ANOVA ($Scheff{\acute{e}}$ test), Pearson's correlation coefficient, and multiple regression using an SPSS/WIN 22.0 program. Results: Customer orientation was significantly associated with organizational commitment (r=.51, p<.001), and compassion competence (r=.74, p<.001). Compassion competence (${\beta}=.62$, p<.001), organizational commitment (${\beta}=.17$, p=.004), and marital status (${\beta}=.11$, p=.034) were identified as the predictors of customer orientation. These variables explained 59.1% of the variance in customer orientation. Conclusion: This study confirmed that compassion competence and organizational commitment may have an impact on customer orientation in hospital Nurses. Therefore, to improve customer orientation in hospital nurses, it is necessary to develop interventions and education programs considering these factors.

• Journal of Korean Clinical Nursing Research
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• v.25 no.2
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• pp.189-197
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• 2019

Purpose: The purpose of this study was to identify the effects of symptom experience and depression on the falls efficacy of elderly patients who were undergoing chemotherapy. Methods: The questionnaires were administered to 105 elderly patients over 65 years hospitalizing for chemotherapy from October 25 to December 30, 2018. The data were analyzed by descriptive statistics, t-test, ANOVA, $Scheff{\acute{e}}$ test, Pearson's correlations and Multiple Linear Regression, ursing an SPSS/WIN 22.0 program. Results: Falls efficacy was negatively correlated with the symptom experience (r=-.58, p<.001), and depression (r=-.57, p<.001). Symptom experience and depression were positively correlated (r=.72, p<.001). The significantly influential factors of falls efficacy were age (${\beta}=-.34$, p<.001), symptom experience (${\beta}=-.24$, p=.022), and the history of falls (${\beta}=-.15$, p=.040), explaining 57.0% of the variance in falls efficacy. Conclusion: The main findings of this study can be used as the foundation for developing programs to increase the falls efficacy of elderly patients undergoing chemotherapy.

• Korean Journal of Occupational Health Nursing
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• v.28 no.1
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• pp.36-43
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• 2019

Purpose: The purposes of this study were to investigate sleep quality and the related factors among clinical nurses. Methods: Data were collected from 208 nurses in general hospitals through self-report. Pittsburgh Sleep Quality Index (PSQI), Korean Epworth Sleepiness Scale (KESS), Insomnia Severity Index (ISS) were used. The data were analyzed t-test, ANOVA, $Scheff{\acute{e}}$ test, and multiple regression using the SPSS 20.0 program. Results: The mean scores of the subjects were $7.58{\pm}3.61$ on daytime sleepiness, $9.93{\pm}6.22$ on insomnia, and $7.29{\pm}3.05$ on sleep quality. The sleep quality in clinical nurses significantly influenced by insomnia (${\beta}=.55$, t=8.14, p<.001), daytime sleepiness (${\beta}=.16$, t=2.83, p=.005), and work satisfaction (${\beta}=-.15$, t=-2.35, p=.020). The three variables explained 55.9% of variance of sleep quality (F=10.73, p<.001). Conclusion: Sleep quality was influenced by daytime sleepiness, insomnia, and job satisfaction. To improve sleep quality, hospitals managers or leaders need to provide sleep promotion programs for preventing daytime sleepiness and insomnia.

• Korean Journal of Occupational Health Nursing
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• v.28 no.3
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• pp.176-185
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• 2019

Purpose: The purpose of this study was to identify the effects of job stress, emotional labor, and positive psychological capital on the job satisfaction of physician assistants (PAs). Methods: The sample consisted of 166 PAs working in general hospitals in B city, Y city, and C city. Data were analyzed through the SPSS/WIN 18.0 program using t-test, ANOVA, $Scheff{\acute{e}}$ test, Pearson's correlation coefficients, and multiple regression. Results: The factors of job stress (${\beta}=-.488$, p<.001), positive psychological capital (${\beta}=.188$, p=.004), and total clinical career (${\beta}=-.147$, p=.014) had the greatest influence on the level of job satisfaction experienced by the PAs. The total explanatory power was 49.9%. Conclusion: It was found that job stress, positive psychological capital, and total clinical career were influencing factors in the job satisfaction of PAs. Therefore, to improve their job satisfaction, it is necessary to develop strategies to manage the job stress experienced by PAs, and to strengthen and develop positive psychological capital.

• The Journal of Korean Academic Society of Nursing Education
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• v.25 no.2
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• pp.163-172
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• 2019

Purpose: The purpose of this study was to identify the effects of nursing students' belongingness and self-esteem on self-directed learning in clinical practice. Methods: The participants were 163 senior nursing students. Using a structured-questionnaire, data were collected from September to October 2016. Data were analyzed using independent t-test, ANOVA, $Scheff\acute{e}$, test Pearson's correlation coefficients, and multiple linear regression. Results: Self-directed learning in clinical practice had statistically significant correlation with belongingness (r=.47, p<.001) and self-esteem (r=.52, p<.001). Factors affecting self-directed learning were self-esteem (${\beta}=.38$, p<.001), belongingness (${\beta}=.30$, p<.001), and more than 5 members of clinical practice (${\beta}=.15$, p=.017). These three variables explained 35% of self-directed learning. Conclusion: In order to enhance self-directed learning in clinical practice of nursing students, nursing schools should provide training to increase self-esteem in nursing students. In addition, an appropriate number of students should be considered, so that they can have a well-developed sense of belonging to clinical practice.

• Journal of Ceramic Processing Research
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• v.19 no.6
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• pp.492-498
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• 2018

In this study, a sea shell was converted into bioceramic phases at three different sintering temperatures ($450^{\circ}C$, $850^{\circ}C$, $1000^{\circ}C$). Among the obtained bioceramic phases, a valuable ${\beta}-TCP$ was produced via mechanochemical conversion method from sea snail Turritella terebra at $1000^{\circ}C$ sintering temperature. For this reason, only the bioceramic sintered at $1000^{\circ}C$ was concentrated on and FT-IR, SEM/EDX, BET, XRD, ICP-OES analyses were carried out for the complete characterization of ${\beta}-TCP$ phase. Biodegradation test in Tris-buffer solution, bioactivity tests in simulated body fluid (SBF) and cell studies were conducted. Bioactivity test results were promising and high rate of cell viability was observed in MTT assay after 24 hours and 7 days incubation. Results demonstrated that the produced ${\beta}-TCP$ bioceramic is qualified for further consideration and experimentation with its features of pore size and ability to support bone tissue growth and cell proliferation. This study suggests an easy, economic method of nanobioceramic production.

• The Korean Journal of Applied Statistics
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• v.11 no.1
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• pp.129-139
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• 1998

This article examines the use and some difficulties of Normal Test Variables(NTV) plot for clinical research. Monte Carlo Simulation results are presented based on Normal, Bimodal, Uniform, Exponential and skewed-right distributed Beta Distributions. Further, some solutions are presented and illustrated.