• The Journal of Korean Institute of Communications and Information Sciences
• /
• v.31 no.10C
• /
• pp.991-999
• /
• 2006

This paper shows that the support growth of an optimum (minimum mean square-error) scalar quantizer for a Laplacian density is logarithmic with the number of quantization points. Specifically, it is shown that, for a unit-variance Laplacian density, the ratio of the support-determining threshold of an optimum quantizer to $\frac 3{\sqrt{2}}1n\frac N 2$ converges to 1, as the number of quantization points grows. Also derived is a limiting upper bound that says that the optimum support cannot exceed the logarithmic growth by more than a constant. These results confirm the logarithmic growth of the optimum support that has previously been derived heuristically.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.21 no.3
• /
• pp.89-95
• /
• 2020

This study is a descriptive research to investigate the effects of nurses' internal orientation, social support and job orientation on turnover intention. The subjects were two university hospital nurses in D metropolitan city who agreed to participate in the study. Data collection was conducted from October 2, 2018 to March 20, 2019. The data were analyzed using SPSS 22.0 program, frequency and percentage, mean and standard deviation, correlation analysis, t-test, ANOVA, Pearson's correlation, and multiple regression. The study results were 3.04 ± .62 points for internal orientation policy, 3.08 ± .55 points for social support, 3.81 ± .59 points for peers, 3.67 ± .60 points for family members, and 2.98 ± 0.43 points for job placement and intention to turnover. The degree of turnover decreased with higher internal orientation, social support and job orientation. An examination of the general characteristics of the factors affecting turnover intention showed significant results with clinical experience and working department. The higher the clinical experience, the higher the turnover intention, and the department of work showed the higher turnover intention in the order of surgical ward, medical ward, ICU, and OR. These results show the need to actively develop and educate programs to improve nurses' intention to turnover, as well as internal hospital-oriented policies, social support, and job placement.

• Research in Community and Public Health Nursing
• /
• v.14 no.3
• /
• pp.375-384
• /
• 2003

The purpose of this study is to identify the amount of social support and quality of life perceived by elderly people in rural areas and to examine the relationship between social support and quality of life in an effort to provide the basic data for effective nursing intervention to enhance quality of life among elderly people. Data were collected from a sample of 220 elderly people aged over 60 from a stratified probability method from one rural area in South Jeolla province from Aug. 15 to Sep. 15, 2002. For data collection, pre-educated researchers visited the participants' homes and surveyed them face-to-face. The statistical analysis was performed using the SAS program along with t-test, ANOVA, and Pearson Correlation. The findings were as follows: 1. The most socially supportive people they answered were Spouses (57.28%), followed by children, friends/neighbors, in descending order. In terms of satisfaction about social support, the subjects felt the most satisfaction from spouses, followed by friends/neighbors, children, in descending order. 2. The participants' perceived social support was 26.0 and the highest score was 108.0 out of 125. Also, the average score and average grade point was 81.7 and 3.35, respectively. A comparison of the average grade points per items within sub-areas of social support revealed financial aid(3.56), informative support(3.34), emotional support (3.27), and evaluation support(3.22). 3. Their perceived social support had statistically significant differences in terms of how much they earned (F=18.56, p= .00001) and whether they had family members living together (F=2.68, p= .0512), quality of life had statistically significant differences in terms of how much they earned (F=35.34, p= 0.00001). 4. The quality of life they perceived was the lowest score 47.0, the highest score 196.0, average score 145.7, and average grade points 3.28. A comparison of the average grade points per items within sub-areas of quality of life revealed neighbor relationships(3.97), self-esteem(3.49), family relationships(3.35), economic conditions 3.12), physical health (2.98), and psychological health(2.74). 5. The relationship between the amount of the subjects' social support and quality of life was significantly correlated (r=.696, p< .001). The findings revealed that social support for elderly people in rural areas was a greatly effective factor on their quality, of life. Also, it was shown that the larger the social support for the elderly, the greater the quality of life for them. Therefore, it is necessary to foster geriatric nurse specialists and develop nursing intervention programs connected with health care and social wellbeing in order to enhance the quality of life of elderly people in rural areas. Also, it is necessary to develop effective models for community and its applications, which will playa leading role for elderly people.

• Research in Community and Public Health Nursing
• /
• v.15 no.2
• /
• pp.237-245
• /
• 2004

Purpose: This study was to identify the relationships among the depression, social support and quality of life of the elderly in rural areas. Method: The subjects of this study were 199 people aged over 60 who had been living in three rural area. Data were collected through a questionnaire survey from the 10th of July to the 10th of August 2003. Collected data were analyzed using descriptive statistics, t-test, ANOVA. Duncan's multiple-range test, Pearson's correlation coefficient and multiple stepwise regression with SPSS & SAS. Result: The average depression score was 11.09. As for the score of social support by supporter, the score of spouse' support was 13.36 out of 18 points, children's support 13.27, friends' support 11.40, neighbors' support 10.21 and siblings' support 10.20. The average score of quality of life was 132.26 out of 220 points. As for the score of the sub-areas of quality of life, the score was highest in economic status(32.18) and lowest in neighbor relationship (16.42). The score of quality of life was negatively correlated with the score of depression (r=-.014) and positively with the score of social support (r=.338). The suitable regression from the results of the multiple regression analysis to investigate factors influencing quality of life was expressed by y=58.341-$0.361x_1$+$1.492x_2$ ($x_1$: social support, $x_2$: depression) and $R^2$=.327. Conclusion: These results suggest that elderly people in rural areas with high quality of life is likely to be low in depression and high in social support. Therefore, it is necessary to develop health promotion programs in due consideration of depression and social support in order to enhance the quality of life of elderly people in rural areas.

• Journal of Digital Convergence
• /
• v.19 no.1
• /
• pp.431-441
• /
• 2021

In this study, the hygiene control status of meals for the elderly was investigated for the elderly care facilities, communal living families, and day care centers, which are members of the Cheongju Social Welfare Food Management Support Center, and the improvement of food hygiene management was compared and analyzed to find out the effectiveness of the pilot project after conducting management support such as hygiene education for the elderly and providing related supplies and information. The study found that after the first support, the average score of overall feeding hygiene control increased significantly from 63.13 points (out of 100) to 75.10 points (p<0.001) and from 75.10 points (out of 100) to 80.89 points (p<0.001). After primary support, 16 out of 29 items showed significant differences in average scores in the checklist, and 7 out of 29 after secondary visit support (p<0.05, p<0.01, p<0.001). Based on the effectiveness of the above-mentioned pilot project to support senior citizens' meal service management, more welfare facilities for senior citizens should be continuously supported by the Foodservice Management Support Center.

• Journal of Internet Computing and Services
• /
• v.6 no.3
• /
• pp.159-170
• /
• 2005

OC-SVM(One Class Support Vector Machine) avoids solving a full density estimation problem, and instead focuses on a simpler task, estimating quantiles of a data distribution, i.e. its support. OC-SVM seeks to estimate regions where most of data resides and represents the regions as a function of the support vectors, Although OC-SVM is powerful method for data description, it is difficult to incorporate human subjective importance into its estimation process, In order to integrate the importance of each point into the OC-SVM process, we propose a fuzzy version of OC-SVM. In FOC-SVM (Fuzzy One-Class Support Vector Machine), we do not equally treat data points and instead weight data points according to the importance measure of the corresponding objects. That is, we scale the kernel feature vector according to the importance measure of the object so that a kernel feature vector of a less important object should contribute less to the detection process of OC-SVM. We demonstrate the performance of our algorithm on several synthesized data sets, Experimental results showed the promising results.

• Proceedings of the KIEE Conference
• /
• 2003.11c
• /
• pp.404-407
• /
• 2003

In this paper, we have designed the humanoid robot's leg parts with 12 D.O.F. This robot uses ankle's joints to confirm stability of walking performance. It is less movable to use ankle's joints than to do upper body's balancing joints like IWR-III, which needs three parts of via points, support leg, swing leg and balancing joints. Instead, the proposed humanoid robot needs support leg and swing leg via points. ZMP(Zero Moment Point) is utilized to guarantee the stability of robot's walking. The humanoid robot uses the ankle's joints to compensate for IWR-III's balancing joints movement. Actually we concern about a motor performance when making a real humanoid robot. So a simulator is employed to know each joint torque of humanoid robot. This simulator needs D-H(Denavit-Hartenberg) parameters, robot's mass property and two parts of via points. The simulation results are robot's walking trajectories and each motor torque. Using the walking trajectories, we can see the robot's walking scene with 3D simulator. Before we develop the humanoid robot, simulation of the humanoid robot's walking performance is very helpful. And the torque data will be used to make humanoid's joint module.

• Journal of Korean Academic Society of Home Health Care Nursing
• /
• v.12 no.2
• /
• pp.87-101
• /
• 2005

Purpose: The purpose this study was to investigate the relationship between self-care performance and influential factors in hemodialysis patients. Method: The subjects of this study were 102 hemodialysis outpatients who had been visiting C University Hospital in Seoul. The data were collected through the scale of self care, self efficacy family support, daily living activity and hope from the 1st to 31st of December 2004. The collected data were analysed using SPSS PC Win 10.0. Result: The average score of self-care performance of subjects was $3.2\pm0.4$ points(4points scale) and significantly different among groups according to age and duration of dialysis. Self care performance of subjects was in a significant positive correlation with family support and hope. Factors affecting self care performance of subjects were family support, duration of hemodialysis, age and daily living function, and the explanatory power of these factors was 31.4%. Conclusion: These findings indicate that is necessary to enhance family support, to develope and apply self-care education programs in consideration of duration of dialysis and age, to have hope-giving communication with patients and their families, and to provide nursing interventions for maintaining patients' daily living function in order to improve the self care performance of hemodialysis patients

• Journal of Korean Clinical Nursing Research
• /
• v.29 no.1
• /
• pp.85-94
• /
• 2023

Purpose: The purpose of this study was to investigate the influencing factors of post-traumatic growth in patients with gastrointestinal cancer. Methods: A cross-sectional study was conducted, enrolling 120 patients with gastrointestinal cancer. Their general characteristics, disease-related characteristics, perceived illness intrusiveness, levels of optimism, social support, and post-traumatic growth were assessed through self-administered questionnaires. The collected data were analyzed using descriptive statistics, independent t-test, oneway ANOVA, Pearson's correlation, and multiple regression analysis. Results: The mean score of post-traumatic growth was 52.74 points(total score of 92 points). Among the subscales of post-traumatic growth, levels of the preciousness of life were the highest, and relating with others was the lowest. The post-traumatic growth was found to be significantly correlated with optimism (r=.48, p<.001), social support (r=.47, p<.001), and depression (r=-.37 p<.001). Factors associated with post-traumatic growth were optimism (β=.36, p<.001), social support (β=.31, p<.001), and depression (β=-.27, p<.001). Conclusion: Given that prevalence of gastrointestinal cancer is increasing in Korea, identifying general, psychological, and social factors affecting post-traumatic growth among this population will be helpful in clinical practice. Integrated strategies to increase optimism and social support and lower depression should be considered to improve the post-traumatic growth of patients with gastrointestinal cancer.

• The Journal of the Korea Contents Association
• /
• v.21 no.4
• /
• pp.815-824
• /
• 2021

Purpose: This study was to identify the degree of academic stress, college life Adjustment, and social support perceived by nursing students, and to identify the mediating effect of social support between academic stress and college life Adjustment. The participants were 248 nursing college students who have experience in field practice at 4 universities in G metropolitan city. Data analysis was analyzed using SPSS 24.0 as Descriptive statistics, Independent-test, One-way ANOVA, Pearson's correction, and Bootstrapping. Results: The study found 2.68 points for academic stress, 4.11 points for social support, and 3.5 points for college life adjustment. Academic stress was negative correlation with social support and Adjustment to college life, social support was positive correlation with Adjustment to college life. As a result of the analysis by applying the mediating effect verification model 4, first, academic stress had a significant negative effect on social support, second, academic stress had a negative effect on college life adjustment, and social support had a positive effect on college life adjustment. Third, the analysis of the total, direct, and indirect effects of academic stress and social support on college life adjustment showed that they were all significant. In conclusion, it has been found that social support has a partially controlled mediating effect between academic stress and college life adjustment.