• Journal of the Korea Academia-Industrial cooperation Society
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• v.12 no.12
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• pp.5677-5683
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• 2011

The purpose of this study was to determine the effects of hip flexion angles and Kinesio-taping on lumbar extension strength. Forty healthy participants(male=20, female=20) were volunteered for this study. It was used to measure lumbar extension strength with the back strength dynamometer in five angles($0^{\circ}$, $20^{\circ}$, $40^{\circ}$, $60^{\circ}$ & $80^{\circ}$ hip flexion). It was used to estimate and compare back extension strength with independent t-test, paired t-test, correlation analysis and ANOVA. The results of this study were as follows; First, lumbar extension strength was the most achieved at $40^{\circ}$ hip flexion in male and female(p<0.05). Second, lumbar extension strength was showed a statically increase(p<0.05) in $0^{\circ}$, $20^{\circ}$, $40^{\circ}$, $60^{\circ}$ and $80^{\circ}$(except male) after appling taping. These results proposed to us the conclusion that back muscle strength was influenced by hip flexion angles and Kinesio-taping in the lifting work.

• Journal of dental hygiene science
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• v.11 no.5
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• pp.463-469
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• 2011

The purpose of this study was to investigate effect of gap between expected job and performed job on job satisfaction and turnover intention in clinical dental hygienists. A total 292 hygienist in dental hospitals and dental offices in nationwide completed a questionnaire on their daily routine job and job which they expected and measured gap between expected job and performed job, such as chairside assisting, preventive care, consultation, reception. The study showed the gap on chairside assisting job among age, career and showed the gap on consultation among age, education, career and showed the gap on reception among age, career. gap on chairside assisting, salary satisfaction, personal day affected job satisfaction and gap on chairside assisting, children, salary satisfaction affected turnover intention. The study showed that salary satisfaction and gap on chairside assisting associated with turnover intention and job satisfaction. Personal day affected job satisfaction but did not affect turnover intention.

• Journal of the Korea Society of Computer and Information
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• v.26 no.7
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• pp.65-73
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• 2021

The purpose of this study is to cornpare the differences in clinical competence, knowledge of patient safety management and confidence of patient safety management according to the clinical practice experience of nursing students, Of the 73 nursing students who experienced clinical practice and 35 nursing students who did not experience, a total of 108 students in the third grade were analyzed, In the results of this study, clinical competence(t=.88, p=.377) knowledge of patient safety management(t=-.29, p=.773), and confidence of patient safety management(t=1.11, p=.267) the difference between was not statistically significant in the two groups. In the two groups, the score of the sub-area according to each variable is the lowest. First, the sub-area of the nursing process a lowest score in clinical competence, and the second, the sub-area of measuring knowledge about concept of near miss was the Knowledge of patient safety management. The score was the lowest in, and thirdly, the sub-area of writing an incident report when an error occurred had the lowest score in confidence of patient safety management. Therefore, in order to improve the quality of clinical competence of nursing students, it is necessary to develop a strategic educational guideline to improve the clinical practice education environment, to improve patient safety management capabilities and to cultivate correct attitudes toward patient safety management.

• Korean Journal of Environment and Ecology
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• v.36 no.5
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• pp.535-549
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• 2022

Damage to forests, such as broken or falling trees, has increased due to the increased intensity and frequency of abnormal climate events, such as strong winds and heavy rains. However, it is difficult to respond to them in advance based on prediction since structural defects such as cavities and bumps inside trees are difficult to identify with a visual inspection. Non-invasive sonic tomography (SoT) is a method of estimating internal defects while minimizing physical damage to trees. Although SoT is effective in diagnosing internal defects, its accuracy varies depending on the species. Therefore, it is necessary to analyze the reliability of its measurement results before applying it in the field. In this study, we measured internal defects in wood by cross-applying destructive resistance micro drilling on old Pinus densifloraSiebold & Zucc. and Ginkgo bilobaL., which are representative tree species in Korea, to verify the reliability of SoT and compared the evaluation results. The t-test for the mean values of the defect measurement between the two groups showed no statistically significant difference in pine trees and some difference in ginkgo trees. Linear regression analysis results showed a positive correlation with an increase in defects in SoT images when the defects in the drill resistance graph increased in both species.

• Journal of Digital Convergence
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• v.14 no.6
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• pp.167-175
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• 2016

This study analyzed empirically the same data through SPSS statistic(regression analysis) and AMOS program(structural equation model) used for cause and effect analysis. The result of empirical analysis was as follows. The different outcome of coefficients and p-values were deducted. Especially, in the mediated effect testing, meanwhile, SPSS statistic(regression analysis) pictured mediated effect, AMOS program(structural equation model) did not picture mediated effect on the reject zone of null hypothesis(absolute t-value and C.R.-value were nearby 1.96). Eventually, this study showed that what program used determined the outcomes of coefficients and p-values(In particular, the outcomes were differentiated further in the increasing measurement error) though using the same data.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.11
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• pp.544-555
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• 2017

This study was conducted to identify the factors influencing consciousness of biomedical ethics, moral sensitivity and critical thinking disposition with respect to the Code of Ethics of nurses among nursing students. A descriptive correlation research design was used for this study. The subjects were 299 nursing students in two large cities from 1 June to 31 July 2015. Collected data were analyzed using a t-test, ANOVA, Scheffe's test and stepwise multiple regression by the SPSS 22.0 program. The results revealed that female subjects comprised 86.65% of the subjects and the mean age was 21.67 years. Awareness of the Code of Ethics for nurses was positively correlated with the consciousness of biomedical ethics(p<0.001), moral sensitivity(p<0.001), and critical thinking disposition(p<0.001). However, there were negative correlations between grade(p=0.017), marital state(p=0.012), and the possibility of increasing ethical problems according to the development of bioscience(p=0.012). Significant influencing factors of the awareness of the Code of Ethics for nurses included grade(p=0.013), marital state(p=0.030), consciousness of biomedical ethics(p=0.017), moral sensitivity(p<0.001), and critical thinking disposition(p=0.001), with apower of explanation of 26.3%. The results of this study show that the consciousness of biomedical ethics, moral sensitivity and critical thinking disposition are factors influencing the code of ethics for nurses among nursing students.

• Journal of the Korean Society of Radiology
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• v.82 no.1
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• pp.116-127
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• 2021

Purpose To evaluate the feasibility of texture analysis of gray-scale ultrasound (US) images for staging of hepatic fibrosis. Materials and Methods Altogether, 167 patients who had undergone routine US and laboratory tests for a fibrosis-4 (FIB-4) index were included. Texture parameters were measured using a dedicated in-house software. Regions of interest were placed in five different segments (3, 5, 6, 7, 8) for each patient. The FIB-4 index was used as the reference standard for hepatic fibrosis grade. Comparisons of the texture parameters between different fibrosis groups were performed with the Student's t-test or Mann-Whitney U-test. Diagnostic performance was evaluated by receiver operating curve analysis. Results The study population comprised of patients with no fibrosis (FIB-4 < 1.45, n = 50), mild fibrosis (1.45 ≤ FIB-4 ≤ 2.35, n = 37), moderate fibrosis (2.35 < FIB-4 ≤ 3.25, n = 27), and severe fibrosis (FIB-4 > 3.25, n = 53). Skewness in hepatic segment 5 showed a difference between patients with no fibrosis and mild fibrosis (0.2392 ± 0.3361, 0.4134 ± 0.3004, respectively, p = 0.0109). The area under the curve of skewness for discriminating patients with no fibrosis from those with mild fibrosis was 0.660 (95% confidence interval, 0.551-0.758), with an estimated accuracy, sensitivity, specificity of 64%, 87%, 48%, respectively. Conclusion A significant difference was observed regarding skewness in segment 5 between patients with no fibrosis and patients with mild fibrosis.

• Journal of the Korea Convergence Society
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• v.8 no.1
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• pp.163-171
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• 2017

This study is the one group pretest-posttest design study with a view to evaluate the effects of convergence-based education on core basic nursing skills on self-efficacy, confidence and department satisfaction of lower-class nursing students. The subject of this study was 80 sophomore nursing students, the data was collected from March to April 2016. The self-efficacy, confidence and department satisfaction of the target students before and after the education were evaluated using the structured survey, and after the education, the performance ability of the target students was evaluated. The collected data were analyzed through paired t-test. The results of this study showed that all the self-efficacy(p=.045), confidence(p<.001) and department satisfaction(p=.018) increased significantly, indicating that the convergence-based education on core basic nursing skills was effective for improving the self-efficacy, confidence and department satisfaction of lower-class nursing students.

• Korean Journal of Applied Biomechanics
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• v.18 no.4
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• pp.41-47
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• 2008

The purpose of this study was to provide foundations for proper stretching method not to lose muscle strength caused by shrink of muscle for preventing injury and improving performance when we make training programs. This study compared and analyzed isokinetic variables related to the static stretching frequency of knee joint extensor by isokinetic instruments applied to normal adults. 45 normal adults are randomly sampled into 3 different groups. All the measured variables were processed with SPSS and, means and standard deviations at each angle speed were calculated. The difference of means between before and after stretching of each groups were processed by paired t-test. One-way ANOVA and after test(Duncan) This study was able to see that stretching decrease acute isokinetic muscle strength High frequency stretching group showed more efficient decrease of muscle strength than low frequency stretching group. As a result, making training program for a game requiring strong muscle strength should consider proper stretching method not to lose muscle strength.

• Journal of the Korea Convergence Society
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• v.8 no.11
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• pp.133-139
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• 2017

Objective: The purpose of this study was to examine levels of awareness, attitude and practice of wearing seatbelt of university students using a long distance commute. Methods: A cross-sectional survey design was used to investigate a convenience sample of 118 university students in Chungbuk province. Data was analyzed by descriptive statistics, Pearson correlation coefficients, t-test, ANOVA and Scheffe'test using SPSS version 22. Results: A significant positive correlation was found among awareness, attitude and practice. There were statistically significant differences in awareness, attitude and practice according to some of general characteristics(gender, age, commuting time, the last point of no seatbelt, socioeconomic status). Conclusion: Based on the results of this study, it can be used to develop an accident prevention and health education program.