• Korean Journal of Social Welfare
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• v.35
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• pp.85-105
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• 1998

This article examined the trend of 125 empirical researches which were published in Jr. of Korean Social Welfare from the first issue to no. 33. in terms of theoretical and methodological orientations. The content analysis was employed for the purpose of the study. Since 1979, the number of empirical researches was in the trend of increasing. The findings from this research were as follows. 1) Among 166 authors, 96.4% were majored in social welfare. Also 6.0% were practitioners and the rest of them were in the position of professors or researchers. The outcome of lack of interdisciplinary co-work and researcher-practitioner co-work led the article to conclude that the nature of applied social science of social welfare was not so actively pursued in Korea. 2) It was almost impossible to find researches which studied same theme or employed same analytical framework. This meant that the work of re-verifying and proving the contray could not be done although it was essential for theory-building. In other words, the disciplinary of social welfare was far behind in the process of theory-building. 3) The methodology upon which most of researches were relied was quantitative methodology(92.8%). The article concluded 'paradigm shift' was not begun in the disciplinary of social welfare yet. 4) The study concluded that the particularity of empirical researches of social welfare in Korea was descriptive-configurative study. Whereas 65.5% of 125 empirical studies were descriptive-configurative, 25% were hypothesis - model test and only 6% causal analysis. 5) The most applied statistic models through the period from 1979 to 1997 were descriptive statistics such as frequency, chi square test, Pearson's r. More advanced statistics such as logit regression, probit regression, path analysis, covariance structure analysis were shown since 1990.

• Journal of the korean academy of Pediatric Dentistry
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• v.33 no.4
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• pp.624-632
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• 2006

In recent years, xenon plasma arc lamp was introduced for high-intensity curing of composite filling materials in direct resin restorations. In this study, two types of restorative materials, namely composites point $4^{(R)}$ and $Z250^{(R)}$ were selected and curing was conducted using a conventional halogen light and two plama curing lights. Two different resin composites were cured using the different units($Flipo^{(R)}$, Ultra-lite 180A, and $TriLight^{(R)}$) and tested for microhardness. The purpose of this study was to test the hypothesis that exposure to a plasma curing lamp for 3, 6. 9 seconds is equivalent to 20 or 40 seconds of irradiation using a conventional halogen curing unit. 1. $Flipo^{(R)}$ and Ultra-lite 180A were able to polymerize point $4^{(R)}$ at 6 seconds to a degree equal to that of the $TriLight^{(R)}$(control) at 40 seconds. 2. $Flipo^{(R)}$ was able to polymerize $Z250^{(R)}$ at 9 seconds to a degree equal to that of the $TriLight^{(R)}$(control) on the bottom surface at 20 seconds. whereas Ultra-lite 180A could not do. 3. Two plasma curing units were able to cure the test-composites with bottom/top ratios approximately 61% to 96% at 3 to 9 seconds. There were some differences between the two composite brands, with $Z250^{(R)}$ displaying less difference between top and bottom hardness values. For point $4^{(R)}$ and $Z250^{(R)}$, at least 6 or 9 seconds were necessary to produce microhardness equivalent to that of the $TriLight^{(R)}$ curing at 20 or 40 seconds.

• The Korean Journal of Rehabilitation Nursing
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• v.4 no.1
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• pp.58-72
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• 2001

A Cerebrovascular accident(CVA), or Stroke is a medical emergency that occurred when the blood supply to the brain is interrupted or blocked. The stroke causes physical function disorder due to hemiparalysis and emotional disorder. Also the stroke patients experience helplessness, powerlessness, sense of alienation and loss of hope. These feelings make the rehabilitation difficult because they lose the will of life. The purpose of this study is to identify the correlation between perceived social support and hope of stroke survivors. The subjects for this study were 100 out-patients with stroke in one general hospital and oriental medicine hospital located in Mokpo. The data were analysed by frequency, t-test, ANOVA. Duncan test, Pearson's correlation, using the SPSS WIN 9.0 program. Data were collected from July 11 to September 9, 2000, using a structured questionnaire. The instruments used for this study : The social support scale developed by Park, Ji-won(1985) and the hope scale developed by Miller(1988). The results were as follows. 1. It was found that the higher the degree of perceived social support, the higher the degree of hope(r=.726, p=.000). Therefore hypothesis was supported. 2. The mean score of perceived social support was 77.8(SD=21.0) with a score range from 27.0 to 104.0. 3. The mean score of perceived hope was 117.0(SD=25.7) with a score range from 57.0 to 160.0. 4. The level of social support depending on general characteristics were significantly different in variables such as marital status(t=3.131, p=.010). degree of income satisfaction(F=16.027, p=.000). 5. The level of hope depending on general characteristics were significantly different in variables such as marital status(t=2.681, p=.040). current job(t=-2.055, p=.043) degree of income, satisfaction(F=11.363, p=.000). For these subjects, there was a significant relationship between social support and hope. The stroke survivors need social support to inspire their hope. Nurses should plan interventions to enhance social support for patients with stroke. The above results may be used as the basic data to seek more efficient way of elevating nursing practice and rehabilitation for the patients with stroke.

• The Korean Journal of Elementary Counseling
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• v.9 no.1
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• pp.1-20
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• 2010

This research was carried out to see that to what extent KSD reaction can be related to types of sociometric status, and it was carried out on the basis of an hypothesis that KSD reactions of elementary school students in high grades(4th, 5th, 6th grades) would vary according to gender and 5 types of sociometric status, For that purpose, sociometry which were developed by Ahn Iehwan(2007) and KSD, were implemented with students of 20 classes (5 classes of 4th grade, 5 classes of 5th grade and 10 classes of 6th grade) at an elementary school in A city. Number of students surveyed was 366 and it was not exactly the stratified cluster sampling method. To verify 3 hypotheses, independent samples t-test, one way ANOVA, discriminant analysis were made. As a result, there was statistically significant difference in action factor and characteristics factor among 3 factors of KSD reaction by gender, but there was not statistically significant difference in dynamics factor. The result of one way ANOVA showed there was statistically significant difference in characteristics factor and dynamics factor among female students, but there was not statistically significant difference in action factor. Therefore, it was understood that characteristics factor of KSD reaction was closely related to gender difference and types of sociometric status. From the result of this research, it was considered necessary to review KSD scoring system suggested by 田中志帆(2009). And lastly, it was observed that KSD reaction was not effective in evaluating sociometry, and a new approach to the projective drawing test was suggested as a supplementary method for sociometry.

• Journal of Industrial Convergence
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• v.20 no.1
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• pp.23-33
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• 2022

The study was conducted to develop an implementation model for digital transformation (DX) of manufacturing companies. To this end, previous studies on the process of management innovation and digital transformation were reviewed. The DX process model was derived based on the NEBIC theory and innovation theory applied in the innovation process of the Internet business. In addition, a research model including the factors of the will of the top management class (TMT) was constructed and confirmed through empirical data. The research hypothesis were verified based on data collected from members of mid-sized manufacturing companies promoting digital transformation. Through regression analysis, the influence relationship of each stage of the research model (technical knowledge, TK → opportunity perception, OR → performace expectation, PE and → Intention to execute, IE) was confirmed. Hierarchical regression analysis was conducted to understand the mediating effect of the members' perception of the top management's willingness to promote DX in the process. As a result of checking the Sobel test, it was confirmed that the management's perception of DX promotion partially mediated the relationship at each stage. This study is meaningful in that it presented a model applicable to the digital transformation of the mid-sized manufacturing industry. It is also valuable in providing an empirical basis for innovative research and NEBIC expansion. Longitudinal studies are required to overcome the limitations of empirical data for process models with dynamic characteristics whereas extended empirical studies are required in various fields other than manufacturing to generalize research results.

• Journal of the Korean Society for Library and Information Science
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• v.41 no.1
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• pp.411-429
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• 2007

This study Performed five weeks' education on library use as a regular cultural subject at the target on university students and analyzed the difference in their library anxiety between Pre-education and Post-education as well as the difference in educational effectiveness based on the frequency of library use. The result intends to Present the result for basic materials which aye necessary for promoting the education on library use. The object of study selected the university freshmen. located in Gyeonggi-do, taking a lessen of cultural essential subjects. The education contents on library use were the understanding of library organization and function, the structure of library materials, the kind and use of academic information, the citation of materials, the description of bibliography, and the copyright in a library. The study methods applied in the study, were literature researches and two-times' questionnaire surveys in the first week of the education and the last week of that. Total 92 materials were applied for this study. This study performed faired t-test and independent t-test. As a result, four factors of six ones on library anxiety were selected in the verification of hypotheses after performing an education on university students' library use. In addition, the difference in education effectiveness based on university students' library use frequency was excluded in the course of hypothesis verification on six factors or library anxiety.

• Asia-Pacific Journal of Business Venturing and Entrepreneurship
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• v.12 no.6
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• pp.79-88
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• 2017

Personal time perspective is a factor influencing motivation and goal-oriented behavior. The start-up process is a preparatory process for the future rather than the present. There will be a difference in entrepreneurial decision making depending on the level of time perspective. This study verified the relationship between individual 's time perspective and entrepreneurial self-efficacy. For this study, a survey was conducted with 190 students in college. To test the hypothesis, t-test, one-way analysis of variance and correlation analysis were used. The results of the study are as follows. First, we analyzed the difference of individual 's time by past-negative, past-positive, present-fatalistic, present-hedonistic, and future-oriented time. As a result of analysis, the more experience of entrepreneurship education, the higher the present-fatalistic, present-hedonistic, and future-oriented level. Second, the effect of individual's time perspective on entrepreneurial self-efficacy was analyzed. The past-negative and present-fatalistic level influenced negative on entrepreneurial self-efficacy. The present-hedonistic and future-oriented level influenced positive on entrepreneurial self-efficacy. Finally, based on the above results, academic significance, implications and limitations are suggested.

• The Journal of the Korea Contents Association
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• v.16 no.1
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• pp.263-273
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• 2016

The purpose of this research is to verify that adjustment resilience has a moderating effect on the influence of social exclusion regarding suicide in senior citizens, and the research results are as follows: First, the demographic sociological factors that affect suicidal impulse have been shown to be age, education level, marriage status, and child co-residence. Senior citizens between the ages of 75 and 80 have been shown to have the most suicidal impulses, whereas the tendency to have such suicidal impulses increases as the level of education decreases. Furthermore, those seniors who are unmarried or single due to divorce, death, or separation and those who do not live with their children tended to have stronger, more frequent suicidal impulses. Second, seniors have been shown to suffer stronger suicidal impulse when subjected to more serious social exclusion. Third, it has been verified that adjustment resilience has a strong moderating effect on the influence of social exclusion regarding the suicidal impulses of senior citizens. Last, the results of the inclination test (Hypothesis Test for Slope of Inclination) have shown that adjustment resilience tends to be lower in the group that is more socially excluded. The purpose of this research is to suggest the direction of social policy creation in order to prevent suicide by senior citizens and set forth the practical implication regarding adjustment resilience as a protection factor for further studies.

• Progress in Medical Physics
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• v.28 no.4
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• pp.218-225
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• 2017

Effects on skin caused by the dose from linear accelerator (LINAC) opposing portal irradiation and TomoDirect 3-D modeling treatment according to the radiation devices and treatment methods were measured, and a comparative analysis was performed. Two groups of 10 patients each were created and measurements were carried out using an optically stimulated luminescence dosimeter. These patients were already receiving radiation treatment in the hospital. Using the SPSS statistical program, the minimum and maximum average standard deviations of the measured skin dose data were obtained. Two types of treatment method were selected as independent variables; the measured points and total average were the dependent variables. An independent sample T-test was used, and it was checked whether there was a significance probability between the two groups. The average of the measured results for the LINAC opposing portal radiation was 117.7 cGy and PDD 65.39% for the inner breast, 144.7 cGy and PDD 80.39% for the outer breast, 143.2 cGy and PDD 79.56% for the upper breast, 151.4 cGy and PDD 84.11% for the lower breast, 149.6 cGy and PDD 83.11% for the axilla, and 141.32 cGy and PDD 78.51% for the total average. In contrast, for TomoDirect 3-D conformal radiotherapy, the corresponding measurement values were 137.6 cGy and PDD 76.44%, 152.3 cGy and PDD 84.61%, 148.6 cGy and PDD 82.56%, 159.7 cGy and PDD 88.72%, and 148.6 cGy PDD 82.56%, respectively, and the total average was 149.36 cGy and PDD 82.98%. To determine if the difference between the total averages was statistically significant, the independent sample T-test of the SPSS statistical program was used, which indicated that the P-value was P=0.024, which was 0.05 lower than the significance level. Thus, it can be understood that the null hypothesis can be dismissed, and that there was a difference in the averages. In conclusion, even though the treatment dose was similar, there could be a difference in the dose entering the body surface from the radiation treatment plan; however, depending on the properties of the treatment devices, there is a difference in the dose affecting the body surface. Thus, the absorbed dose entering the body surface can be high. During breast cancer radiotherapy, radiation dermatitis occurs in almost all patients. Most patients have a difficult time while undergoing treatment, and therefore, when choosing a radiotherapy treatment method, minimizing radiation dermatitis is an important consideration.

• The Journal of the Korea Contents Association
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• v.16 no.2
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• pp.129-142
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• 2016

This study evaluates the sectoral effects of the regeneration of the idle space and aims to analyze the impact relationship and structure with the quality of residents's life and local economy revitalization. this study verifies the 8 hypotheses from total 11 ones through the PLS structural equation model and suitability test for setting the hypothesis and statistical significance test. The results can be summarized into 3 parts. First, If physical, social and cultural aspects should be considered, Regeneration of idle space could meet the 2 pasts such as quality of residents life and local economy revitalization at the same time. Secondly, the regeneration of idle space from environmental aspect should be led by the local government and let it's effect leaded to local economy revitalization through the collaboration of private and public sector. Finally, it should promote the quality of resident's life and let the satisfaction linked to cyclical effects with local economy revitalization. This study has an significance that it provides the theoretical basis for regeneration of idle space and it is an empirical study for impact structure model.