• Journal of Korean Critical Care Nursing
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• v.1 no.1
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• pp.59-71
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• 2008

Purpose: This study was to identify the effects of simulation-based training for advanced cardic life support on the competence of nurses in critical care settings. Methods: In this study, a nonequivalent control pretest-post test quasi-experimental design was used. Data were collected from May 1 to June 1, 2006 at one general hospital in W city. Among 40 nurses in critical care settings, twenty were assigned to the experimental group and twenty to the control group. Nurses in the experimental group received simulation-based training for advanced cardiac life support. Measurement tool were ACLS related knowledge and skills developed by AHA & Mega Code (2005) and some items were modified. The collected data were statistically processed using SPSS version 12.0 for Windows, and analyzed using descriptive statistics, $X^2$test, t-test, paired ttest, Pearson correlation coefficients. Results: 1) Hypothesis 1“: Nurses who received simulationbased training would have more knowledge of advanced cardiac life support than nurses who received traditional training”, was supported (t=11.51, p=.00). 2) Hypothesis 2: “Nurses who received simulation-based training would have better advanced cardiac life support skills than nurses who received traditional training”, was supported (t=2.38, p=.00). Conclusion: Simulation-based training for advanced cardiac life support is an effective strategy for increasing the competence of nurses in advanced cardiac life support in critical care settings.

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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• 2004.05a
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• pp.222-227
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• 2004

Korean High Speed Train(KHST) has been tested on the high speed test line in Osung site, since it was developed through the G7 Project Plan in 2002. It was also tested on the conventional line such as KyongBu and Honan Line to know the possibility of increasing the limited speed for the high speed trains. This paper introduces the method to improve the speed on the conventional line with body lateral acceleration among the several considered issues and explains the parameters related to those analysis, such as the cant deficiency, the radius of curve, speed and etc. When a train pass on the curved track, the lateral accelerations of body are divided into the quasi-static and the maximum accelerations according to the UIC 518 which is the international specification for testing and approval of railway vehicles from the point of view of their dynamic behaviour, especially for safety and ride comfort. This paper shows that it is safe and comfort from the results of test when KHST runs on the conventional line with the curves and proposes that the limited speed of conventional curved line could be changed to a little higher speed if the analysises of other fields are completed.

• Research in Community and Public Health Nursing
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• v.25 no.2
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• pp.146-157
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• 2014

Purpose: The objective of this study is to analyze systematically the trends of experimental researches in the area of community health nursing. Methods: This is a study based on literature review, which analyzed 137 experimental research papers in the Journal of Korean Academy of Community Health Nursing, from the first issue in 1989 to those in 2012. Results: 1) The proportion of experimental researches in the total published papers was 14.9%. 2) The mainly used research method was quasi-experiment, which was 60.6% of them, and there was no RCT. 3) Convenient sampling was used in 95.6% of the researches. 4) Only 5.1% were reviewed for keeping the ethical standards for the study objects by the IRB. 5 When classified by the Omaha Classification System, psycho-social researches were most frequent, which were followed by physiological, health-related behavioral, and environmental ones in order of frequency. Conclusion: This study found that the proportion of experimental research papers was increasing in the 2000s and ethical standards were required more rigorously. However, it was suggested that the research design be more elaborated and sampling methods be manifested to reduce research bias and errors.

• International Journal of Concrete Structures and Materials
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• v.18 no.3E
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• pp.183-189
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• 2006

Many researchers have recently proposed various parameters, variables of models and experimental methods to evaluate fracture properties of concrete, and their developments allow us to analyze the non-linear and quasi-brittle fracture mechanisms. This paper presents a brief treatment of the fracture parameters. Additionally, three-point bending tests were conducted to compare J-integral($J_{Ic}$) with other parameters($K_{Ic},\;G_{Ic},\;and\;G_F$). The change in parameter values with respect to the width and notch length of concrete beam specimens was also considered. The load-displacement curves were used to measure the concrete fracture toughness experimentally. From the results of experiment, it was found that the value of $G_F\;and\;J_{Ic}$ decreased as the notch depth increased and that $G_F$ was less sensitive than $J_{Ic}$. Therefore, the former, $G_F$, is more appropriate in using it as the concrete fracture toughness parameter. The values of $G_F\;and\;J_{Ic}$ increased when the width of concrete specimens increasing from 75 mm to 150 mm. Thus, the effects of the specimen width should be considered in determining the fracture toughness of concrete.

• Child Health Nursing Research
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• v.23 no.4
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• pp.416-428
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• 2017

Purpose: Tonsillectomy is a very common surgical procedure, particularly in children. The purpose of this study was to identify current evidence in nursing research on pediatric tonsillectomy by analyzing and evaluating Korean nursing studies related to pediatric tonsillectomy. Methods: An integrative literature review of Korean pediatric tonsillectomy research was conducted. Databases were searched to identify research that related to nursing care for pediatric tonsillectomy children. Results: Of the 115 studies identified, 13 studies met the inclusion criteria for this review. All studies were experimental studies and most of those studies had a quasi experimental design. No correlational studies or qualitative studies were found. Providing nursing information and education for children and their mothers at pre, during, and post tonsillectomy by pediatric nurses were found to be effective in reducing children's pain and anxiety and their mother's anxiety and uncertainty, and increasing children's appropriate sick role behaviors and their mother's satisfaction with nursing services provided and knowledge related to tonsillectomy. Conclusion: Although most studies reported positive effects in terms of post tonsillectomy outcomes, lack of methodological rigor limits the current evidences for pediatric tonsillectomy nursing interventions. Greater attention to improve methodological rigor for Korean research on pediatric tonsillectomy is needed.

• Earthquakes and Structures
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• v.11 no.5
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• pp.905-924
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• 2016

Several two-dimensional analytical beam column joint models with varying complexities have been proposed in quantifying joint flexibility during seismic vulnerability assessment of non-ductile reinforced concrete (RC) frames. Notable models are the single component rotational spring element and the super element joint model that can effectively capture the governing inelastic mechanisms under severe ground motions. Even though both models have been extensively calibrated and verified using quasi-static test of joint sub-assemblages, a comparative study of the inelastic seismic responses under nonlinear time history analysis (NTHA) of RC frames has not been thoroughly evaluated. This study employs three hypothetical case study RC frames subjected to increasing ground motion intensities to study their inherent variations. Results indicate that the super element joint model overestimates the transient drift ratio at the first story and becomes highly un-conservative by under-predicting the drift ratios at the roof level when compared to the single-component model and the conventional rigid joint assumption. In addition, between these story levels, a decline in the drift ratios is observed as the story level increased. However, from this limited study, there is no consistent evidence to suggest that care should be taken in selecting either a single or multi component joint model for seismic risk assessment of buildings when a global demand measure such as maximum inter-storey drift is employed in the seismic assessment framework.

• Women's Health Nursing
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• v.18 no.4
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• pp.248-256
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• 2012

Purpose: This study examines the difference of optimism, self-esteem and depression to verify an effect of laughter therapy program for menopausal women. Methods: A quasi-experimental nonequivalent control group pre / post-test design was used. The participants (n=57) were 28 in the experimental group and 29 in the control group. The data were collected in December of 2011. The experimental group participated in laughter therapy for 30 min per session, five times a week for the period of 2 weeks. The questionnaires were used to measure pre / post-test optimism, self-esteem, and depression of menopausal women. Results: The results showed that laughter therapy was effective in increasing optimism (p= .020) and self-esteem (p<.001). And the depression of menopausal women decreased (p= .003). Conclusion: The result of the study indicates that laughter therapy for menopausal women may be an effective nursing intervention to improve optimism, self-esteem and depression of menopausal women.

• Steel and Composite Structures
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• v.34 no.6
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• pp.863-875
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• 2020

After medium or strong earthquakes, damage in the reduced portion of RBS connections occurs due to plastic deformations. The purpose of this paper is to numerically and experimentally investigate the reduced depth section connection as a replaceable fuse. In this regard, three commonly used rigid connections with RBS, a replaceable fuse with RBS, and a replaceable fuse with Reduced Depth Section (RDS-F) were evaluated. All specimens were subjected to quasi-static cyclic load until failure. Although the final strength of the RDS-F is lower than that of the other two, laboratory results showed that it had the maximum ductility among the three samples. The numerical models of all three laboratory samples were constructed in ABAQUS, and the results were verified with great accuracy. The results of more than 28 numerical analyses showed that the RDS-F sample is more ductile than the other specimens. Moreover, the thickness of the web and the plastic section modulus increasing, the final strength would be equal to the other specimens. Therefore, the modified RDS-F with replaceability after an earthquake can be a better alternative for RBS connections.

• Korean Journal of Adult Nursing
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• v.17 no.3
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• pp.484-492
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• 2005

Purpose: This study was undertaken to identify the effect of providing information on anxiety, knowledge and compliance in permanent pacemaker patients. Method: A quasi experimental design with non-equivalent control group and non-synchronized design was used. The subjects of this study were 50 patients who had received permanent pacemaker implantation at a university hospital in Seoul. They were divided into an experimental group of 22 patients who received education and a control group of 28 patients. The education was composed of group education(twice) and individualized reinforcement education(once) using an education booklet. Results: Anxiety decreased in the experimental group. Knowledge significantly increased in the experimental group compared to that in the control group. Compliance significantly increased in the experimental group. Conclusion: It can be concluded that providing information is effective for reducing anxiety, increasing knowledge and improving compliance of the permanent pacemaker patients.

• Korean Journal of Adult Nursing
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• v.19 no.5
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• pp.47-55
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• 2007

Purpose: The purpose of this study was to determine the effect of supportive nursing care on the level of knowledge and compliance with sick-role behavior in patients with coronary artery disease after coronary angiography (CAG). Methods: A quasi-experimental research was performed with 81 subjects with coronary artery disease who were admitted for CAG to a cardiovascular department. Among the selected subjects, 40 of them were assigned to experimental group and the rest of them were assigned to control group by convenience. Supportive nursing care was implemented twice by a researcher. Results: 1. The mean score of knowledge related to coronary artery disease was higher in the group who received supportive nursing care than that of the control group (t=2.259, p=.027). 2. The mean score of compliance of sick role behavior was higher in the group who received supportive nursing care than that of the control group (t=4.580, p=.001). Conclusion: The supportive nursing care after CAG was effective in increasing the knowledge level and compliance of sick-role behavior in patients with coronary artery disease. Further studies would be recommended to identify long-term effectiveness of supportive care on patients' outcomes.