• The Journal of Korean Academic Society of Nursing Education
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• v.18 no.3
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• pp.393-402
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• 2012

Purpose: This study was conducted to test the effect of a Career Search Program on career search efficacy, career search behavior, and career decision making for nursing students. Methods: A non-equivalent pre-post test of a quasi-experimental design was used. Fifty first grade nursing students participated in the study with 22 in the experimental group and 28 in the control group. We used a Career Search Program which was held 6 times over 6 weeks, 90 minutes per session. Descriptive statistics, ${\chi}^2$-test, and independent t-test were used for statistical analysis with SPSS 19.0. Results: There were significant increases in career search efficacy (t=2.07, p=.044) and career search behavior(t=2.65, p=.011) in the experimental group compared to the control group. However, career decision making was not significantly changed (t=0.96, p=.342). Conclusion: These results suggest that a Career grade Search Program has an effect on increasing career search efficacy and career search behavior in first grade nursing students. In addition, more programs to impact career decision making should be developed for nursing college students.

• Journal of the Korea Convergence Society
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• v.11 no.10
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• pp.369-376
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• 2020

This study was to investigate the predictors of suicidal thoughts in the subjects who received the support for depression drug costs at a local public health center. The subjects were 156 depressed patients aged 18 and over. Data analysis was conducted by descriptive statistics, χ²-test, t-test and logistic regression analysis. The results of the analysis showed that the suicidal thoughts rate of the subjects was 25%, and the subjects showed significant differences in suicidal thoughts as the duration of antidepressant use was longer (t=-2.19, p<.05), the perceived physical health(t=3.03, p<.01) and the perceived mental health (t=5.21, p<.001) were lower, and the depression(x²=41.11, p<.001) were higher. The predictors of suicidal thoughts were perceived mental health(OR=0.97, p<.05) and depression(OR=8.44, p<.001). The regression equation of this study explained 42.4% of the suicidal thoughts of the subjects. Continued assessment and convergent mental health promotion programs are required for depression patients living in the community.

• Journal of the Korea Institute of Military Science and Technology
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• v.7 no.4 s.19
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• pp.44-52
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• 2004

The test and evaluation(T&E) of weapon systems is a significant activity in the decision-making process of defense acquisition program, providing the data of trade-off analysis, risk reduction and readiness to advance to next phase of development for the decision-maker. Currently, the modeling and simulation(M&S) is being a critical method in the test and evaluation of weapon systems. Therefore in this paper we review the current status of the test and evaluation for the defense acquisition program in Korea, and suggest an application of M&S in the T&E of weapon systems.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.13 no.8
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• pp.1693-1698
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• 2009

This paper is a research on the feature information using direction information and adjusting constant w for the dynamic signature verification. We could improved processing time and reduce signature database without the increase of error rate. We could confirmed these results by using statistical method T-test.

• Computers and Concrete
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• v.13 no.4
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• pp.531-545
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• 2014

The purpose of this paper is to develop a prediction model for the compressive strength of waste LCD glass applied in concrete by analyzing a series of laboratory test results, which were obtained in our previous study. The hyperbolic function was used to perform the nonlinear-multivariate regression analysis of the compressive strength prediction model with the following parameters: water-binder ratio w/b, curing age t, and waste glass content G. According to the relative regression analysis, the compressive strength prediction model is developed. The calculated results are in accord with the laboratory measured data, which are the concrete compressive strengths of different mix proportions. In addition, a coefficient of determination $R^2$ value between 0.93 and 0.96 and a mean absolute percentage error MAPE between 5.4% and 8.4% were obtained by regression analysis using the predicted compressive analysis value, and the test results are also excellent. Therefore, the predicted results for compressive strength are highly accurate for waste LCD glass applied in concrete. Additionally, this predicted model exhibits a good predictive capacity when employed to calculate the compressive strength of washed glass sand concrete.

• Journal of Society of Preventive Korean Medicine
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• v.18 no.2
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• pp.69-80
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• 2014

Objective : The purpose of this study was to investigate the effects of Intensive management program of home visiting health service for community dwelling Clients with Arthralgia. Method : A nonequivalent control group pretest-posttest design was used for this study. Elderly people who agreed to participated in the study were assigned to an experimental group (n=30) or a control group (n=30). For an experimental group, The Intensive Management program was given as a home visiting health service once a week for 8 weeks. Study outcomes were measured by structured questionnaires from August, 2013 to october. For data analysis, Chi-square test, Fisher's exact probability test, independent t-test, and paired t-test were performed using SPSS version 17.0. Results : Changes in pain, fatigue, medical service utilization and self management compliance were significantly different between the two groups in pretest and posttest(t=-4.828, p < .001), (t=-4.944, p =.001), (t=2.176, p =.039), (t=3.141, p =.003). And there were significant difference between the two groups in left extension and flexion of knee(t=-2.241, p < .031), (t=2.166, p < .037). Conclusion : The intensive management program was effective on decreasing pain, fatigue, medical service utilization, and increasing flexibility of knee joint and self-management compliance of community dwelling clients with arthralgia.

• Women's Health Nursing
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• v.29 no.4
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• pp.274-290
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• 2023

Purpose: This study investigated the effects of prenatal education characteristics, pandemic-related pregnancy stress, and health behaviors during pregnancy on prenatal depression in pregnant women during the coronavirus disease 2019 (COVID-19) pandemic. Methods: The participants were 180 pregnant Korean women, recruited from internet communities for pregnancy preparation, childbirth, and childcare, from July 5 to 15, 2022. The collected data were analyzed using the t-test, analysis of variance, the Mann-Whitney U-test, the Kruskal-Wallis test, and multiple regression analysis. Results: The scores for pandemic-related pregnancy stress (24.50±6.37) and health behaviors during pregnancy (67.07±9.20) were high. Nearly half of the participants (n=89, 49.4%) presented with prenatal depression, with scores of 10 or greater. Prenatal depression had a positive correlation with gestational age (r=.18, p=.019) and pandemic-related pregnancy stress (r=.27, p<.001), and a negative correlation with health behaviors during pregnancy (r=-.42, p<.001). The factors associated with prenatal depression were pandemic-related pregnancy stress (t=4.70, p<.001), marital satisfaction (dissatisfied) (t=3.66, p<.001), pregnancy healthcare practice behaviors (t=-3.31, p=.001), family type (weekend couple) (t=2.84, p=.005), and gestational age (t=2.32, p=.022). The explanatory power of these variables was 38.2%. Conclusion: Since participants had a high level of prenatal depression during the pandemic, and infectious diseases such as COVID-19 may recur, strategies should be developed to improve pregnant women's mental health with consideration of the unique variables that are relevant in a pandemic. It is also necessary to develop efficient online prenatal education programs that can be implemented even in special circumstances such as social distancing, and to evaluate their effectiveness.

• Journal of The Korean Association For Science Education
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• v.33 no.6
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• pp.1237-1247
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• 2013

The purposes of this study are 1) to revalidate the developed Measuring Instrument Systems Thinking and 2) to compare systems thinking skills between gifted and non-gifted high school students. For the test, 116 gifted science students and 553 non-gifted students were sampled from high schools. Exploratory factor analysis and confirmatory factor analysis were performed and Independent t-test was performed using the average of the two groups. The finding of the exploratory factor analysis indicated 5 factors in the model with 4 items per single factor. The result of confirmatory factor analysis was generally appropriate and acceptable (5 factor model: ${\chi}^2/df$ : 2.765, TLI=.907, CFI=.929, IFI=.930, RMSEA=.044). The reliability for 20 items turned out to be high because the Cronbach's alphas were at .875 and .693~.751 per each factor. In addition, the result of t-test showed that systems thinking skills among gifted science students were significantly higher than non-gifted students. This study could be expanded to measuring systems thinking with qualitative research tools and to various school levels.

• Proceedings of the KIEE Conference
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• 2009.04a
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• pp.192-194
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• 2009

This study presents on the analysis fire hazards of communication cable. In order to analyze fire hazards fire retardant tests and con-calorimeter test is conducted. The fire retardant tests are IEC 60332-1 and UL 94 test. The results show that IEC 60332-1 test and It 9t test are not effective to estimate fire hazard. And various parameter is obtained by con-calorimeter test. It is necessary to analysis effectively fire hazards of cable for new fire retardant test.

• International Journal of High-Rise Buildings
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• v.4 no.4
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• pp.271-281
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• 2015

This paper introduces detailed three-dimensional numerical analyses on a bored pile foundation for a high-rise building. A static load test was performed on a test pile and a numerical model of a single pile, which was calibrated by comparing it with the test result. The detailed numerical analysis was then conducted on the entire high-rise building foundation. Further study focused on soil pressures under the base slab of a piled raft foundation. Total seven cases with different pile numbers and raft-soil contact conditions were investigated. The design criteria of a foundation, especially settlement requirement were satisfied even for the cases with fewer piles under considerable soil pressure beneath the base slab. The bending moment for the structural design of the base slab was reduced by incorporating soil pressures beneath the base slab along with bored piles. Through the comparative studies, it was found that a more efficient design can be achieved by considering the soil pressure beneath the slab.