• Journal of Biomedical Engineering Research
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• v.19 no.3
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• pp.233-242
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• 1998

In anatomical aspects, magnetic resonance image offers more accurate information than other medical images such as X ray ultrasonic and CT images. This paper introduces a method that recognizes disk diseases from spine MR images. In this method, image enhancement, image segmentation and feature extraction for sagittal plane and axial plane images are performed to separate the disk region. And then template matching method is used to extract disease region for axial plane imges. Finally, disease feature vectors are integrated and disease discrimination processes are performed. Experimental results show that the proposed method discriminates between normal and diseased disk with a considerable recognition ratio.

• Korean journal of communication and information
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• v.67
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• pp.7-34
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• 2014

This study analyzes the characteristics, implications, and problems of Social Network of Press Organizations from the Kim Dae-jung administration to the Lee Myung-bak administration in Korea. For analyzing these issues, this study attempts to investigate the traits of social network structure based on the density analysis, distribution character analysis and correspondence analysis in each and among regimes. To answer these questions, this study utilizes human relationship data which related to personal network aspects (place of birth, affiliated college) and expertise aspects (types of major field), and which data has been gathered from the biographical web-site of Press Organizations in Korea. The results showed that the membership format of each Press Organizations depends on the connection with political environment directly and indirectly. Especially, the network traits of Broadcasting Press Organizations stands out a place of birth aspect. This findings indicate that the broadcasting policy reality that the path of decision making is connected with the political environment is more effective.

• Investigative Magnetic Resonance Imaging
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• v.3 no.2
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• pp.179-187
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• 1999

Purpose : This paper introduces a computationally inexpensive context-dependent classification of multi-echo MRI with Bayes compound decision model. In order to produce accurate region segmentation especially in homogeneous area and along boundaries of the regions, we propose a classification method that uses contextual information of local enighborhood system in the image. Material and Methods : The performance of the context free classifier over a statistically heterogeneous image can be improved if the local stationary regions in the image are disassociated from each other through the mechanism of the interaction parameters defined at he local neighborhood level. In order to improve the classification accuracy, we use the contextual information which resolves ambiguities in the class assignment of a pattern based on the labels of the neighboring patterns in classifying the image. Since the data immediately surrounding a given pixel is intimately associated with this given pixel., then if the true nature of the surrounding pixel is known this can be used to extract the true nature of the given pixel. The proposed context-dependent compound decision model uses the compound Bayes decision rule with the contextual information. As for the contextual information in the model, the directional transition probabilities estimated from the local neighborhood system are used for the interaction parameters. Results : The context-dependent classification paradigm with compound Bayesian model for multi-echo MR images is developed. Compared to context free classification which does not consider contextual information, context-dependent classifier show improved classification results especially in homogeneous and along boundaries of regions since contextual information is used during the classification. Conclusion : We introduce a new paradigm to classify multi-echo MRI using clustering analysis and Bayesian compound decision model to improve the classification results.

• Journal of Digital Convergence
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• v.15 no.10
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• pp.293-306
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• 2017

This study conducted non-equality control post-design similar experimental study in order to investigate the effect of self-directed practice through self-reflection by using videos on the basic nursing performance ability, confidence in performance, learning self-efficacy, and practice satisfaction. The experimental group was 57 students and the control group was 56 students in the Department of Nursing in G region. The data was collected from April 1, 2017 to June 14, 2017. For analyzing data, the SPSS 22.0 program was used and the homogeneity test was analyzed with ${\chi}^2$ test, t-test, and Fisher's exact test. Also, independent-test was used. According to the result, all of the experimental groups including the basic nursing performance ability, confidence in performance, learning self-efficacy(t=15.304, p<.001), and practice satisfaction(t=15.304, p<.001) were improved and showed significant differences compared to the control group. As a result, it is predicted that the practice method has a positive effect on participating in self-study and it contributes to active participation by increasing learning motivation of learners. Thus, it is suggested to be applied to various practical training to improve basic nursing skills.

• Journal of Internet of Things and Convergence
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• v.7 no.4
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• pp.51-58
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• 2021

This study is a quasi-experimental study designed to examine the effects of color therapy on job stress and depression by applying color therapy to intensive care unit nurses. The subjects of this study were S hospital located in S city, a secondary medical institution with 500 beds, P hospital located in B city, and nurses in the intensive care unit of two general hospitals. The data collection period was 8 weeks from November 2, 2020 to December 25, 2020, with 29 patients in the experimental group and 29 in the control group. The data were analyzed by chi-square test, independent t-test and paired t-test using the SPSS WIN 22.0 program. The experimental group applied color therapy twice a day (before and after work) using a standardized canvas frame painted in yellow, red, blue, and three colors, and a total of 20 times for 10 days, and the control group lived and woked as usual without appiled color therapy. As a result of study, the experimental group showed a significant decrease in job stress score by 0.43 points and depression score by 0.26 points compared to the control group

• The Journal of the Korea Contents Association
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• v.14 no.3
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• pp.203-214
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• 2014

In this study, a meta-analysis was conducted to investigate the effect of community-based rehabilitation on patients with brain injury by ICF factor in previous studies and examine the application of recent community-based rehabilitation program. Total 15 articles that satisfied the selection criteria were divided by ICF factors to obtain the effect size. Homogeneity and publication bias were tested for those selected papers. As a result, the overall effect size of community-based rehabilitation was 0.22; the effect size by physical function and structure among the ICF factors came to be 0.21; and the effect size of activity and participation was 0.20, indicating a small effect size. The studies involved in a meta-analysis were considered as the absence of heterogeneity and publication bias, which indicates that the results of this study are subjectively reliable. These results well explained the level of change on ICF factors, especially physical function and structure, activity and participation, in other words, the intervention effect of community-based rehabilitation on patients with brain injury.

• Journal of the Korean Society for information Management
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• v.34 no.3
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• pp.125-150
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• 2017

The study seeks to establish a theoretical basis for extending the accessibility and availability of records to the public area. For the purpose, the study links the target and scope of archival literacy with official document literacy and proves the relationship between the elements of archival literacy and official public literacy. The literature reviews and survey comparing public officers and undergraduates are conducted. The results of the survey are as follow; public officers with official document literacy showed higher the degree of actual use and awareness than undergraduates; awareness was higher than the degree of actual use in all questions and factors; all correlations showed a positive correlation. In the public officers group, the correlation between 'communication as public officers' and 'analytical concepts' (0.626) was the highest, In the undergraduates group, the correlation between 'communication as the public' and 'analytical concepts' (0.561) was the highest, As a whole, the respondents show the highest correlation between 'communication as the public' and 'analytical concepts' (0.563); As a result, the group with official document literacy is more aware of the homogeneity between official document literacy and archival literacy.

• Journal of the Korean Data and Information Science Society
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• v.22 no.3
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• pp.413-421
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• 2011

The present study was carried out to summarize the effect of garlic in the hyperlipidemia rats by meta-analysis related studies. The association measure to test effect of garlic was the mean difference (MD). In this particular fixed-effect model of mean difference, body weight, liver weight, kidney weight and heart weight were significantly decreased (p < 0.05). Also, blood glucose, plasma total cholesterol, plasma triglycerides, LDL-cholesterol, liver cholesterol, liver triglycerides were significantly decreased. HDL-cholesterol was significantly increased. In this case of heterogeneous variable, random effect model was applied. In this model, liver weight, blood glucose, plasma total cholesterol, plasma triglycerides, LDL-cholesterol, liver cholesterol, liver triglycerides were significantly decreased. HDL-cholesterol was significantly increased. According to the meta-regression analysis, duration of injection was significantly for kidney weight, testis weight, plasma total cholesterol, plasma triglycerides, HDL-cholesterol, LDLcholesterol, liver cholesterol, liver triglycerides.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.16 no.4
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• pp.2511-2519
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• 2015

This research was executed to develop a consultation program for female victims of domestic violence in the past and appraise its effectiveness. For the research, we selected 30 persons for an experimental group and a control group respectively, and practiced frequency analysis, reliability analysis, homogeneity check and T-test of independent sample by using SPSS 20.0 for Windows. The result of analysis is as follows. First, it was probed that the consultation program had the effect to improve the self-esteem of female victims of domestic violence, and reduce depression levels and anxiety. Second, it appeared that consultation program improved the psychological and social adaptation of female victims of domestic violence positively and cast an affirmative effect on the satisfaction of communication of subdivision and conflict-coping method. Therefore, it app[eared that this program had a close relation with the attitude etc. to solve the issues of interpersonal relations and communication of female victims of domestic violence. That is, it was verified that the program had the effect in that they escaped from the sequela of abuse and adapted themselves to mental society.

• Journal of Digital Convergence
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• v.11 no.11
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• pp.155-161
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• 2013

This study investigates the beginning background of the Smart Education Policy. Besides this article suggests the policy task and direction through analysis of politique characteristic of the Smart Education Policy. First of all, the Smart Education Policy belongs with distribution policy. Distribution policy means that the government positively provides goods and services that people in need. Second, the Smart Education Policy has high tangibility and the policy's output appears immediately. Thus, this step required verification of policy output as well as policy impact. Third, the Smart Education Policy is succession policy of historical and contextual homogeneity of educational information comprehensive development plan that has been promoted in our country since 1996. So, Policy implementation must based on this. Fourth, in order to smooth driving of the Smart Education Policy, to keep up with a rapidly changing politique environment, driving of policy need to secure high flexibility.