• The Journal of Korean Institute of Communications and Information Sciences
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• v.36 no.1A
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• pp.35-40
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• 2011

The complex-valued blind algorithm based on a set of randomly generated symbols and Euclidean distance can take advantage of information theoretic learning and cope with the channel phase rotation problems. On the algorithm, in this paper, the effect of kernel size has been studied and a kernel-modified version of the algorithm that rearranges the forces between the information potentials by kernel-modification has been proposed. In simulation results for 16 QAM and complex-channel models, the proposed algorithm show significantly enhanced performance of symbol-point concentration and no phase rotation problems caused by the complex channel models.

• ETRI Journal
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• v.37 no.2
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• pp.222-232
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• 2015

In this paper, we propose a dual-phase approach to improve the process of heart disease prediction in a mobile environment. Firstly, only the confident frequent rules are extracted from a patient's clinical information. These are then used to foretell the possibility of the presence of heart disease. However, in some cases, subjects cannot describe exactly what has happened to them or they may have a silent disease - in which case it won't be possible to detect any symptoms at this stage. To address these problems, data records collected over a long period of time of a patient's heart rate variability (HRV) are used to predict whether the patient is suffering from heart disease. By analyzing HRV patterns, doctors can determine whether a patient is suffering from heart disease. The task of collecting HRV patterns is done by an online artificial neural network, which as well as learning knew knowledge, is able to store and preserve all previously learned knowledge. An experiment is conducted to evaluate the performance of the proposed heart disease prediction process under different settings. The results show that the process's performance outperforms existing techniques such as that of the self-organizing map and gas neural growing in terms of classification and diagnostic accuracy, and network structure.

• Journal of Korean Academy of Nursing Administration
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• v.8 no.4
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• pp.595-603
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• 2002

Purpose : The purpose of this study was to identify the effect of clinical nurse's locus of control of personality on job stress and job satisfaction and organizational commitment out of organizational effectiveness. Methods : The subjects were 463 staff nurses, who were employed in four university hospitals located in Seoul, Pusan and Kyungki-do. Data was collected from October 4th to October 14th in 2000 by a self-report questionnaire. Data was analyzed by the SAS for the general characteristics of the subjects, descriptive statistics, test for reliability and correlations. The effect of variables were tested using the Lisrel 8.12(a) program. Results : With the findings from this study, the internal-external locus of control affects job stress directly. Also it affects job satisfaction directly and via job stress indirectly. But it affects organizational commitment only via job stress and job satisfaction indirectly. Direct effect of locus of control to organizational commitment is not significant. Job stress affects job satisfaction and organizational commitment out of organizational effectiveness directly. Finally, job satisfaction was direct predictor of organizational commitment. Conclusion : Therefore, nursing managers ought to develop social learning programs to change the perception of individual personality and job stress management programs in order to improve organizational effectiveness.

• Journal of Korean Academy of Nursing Administration
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• v.9 no.4
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• pp.641-650
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• 2003

Purpose: The purpose of this study was to examine the performance, autonomy, and organizational commitment of the preceptors. Methods : The sample consisted of 29 nurses in one university hospital. The data were collected through a questionnaire survey of performance, autonomy, empowerment, and organizational commitment conducted from May through August. 30, 2003. The subjects accepted preceptor training for 26 hours, which was conducted by a researcher. The contents of the training program consisted of an introduction to preceptorship, nursing organization, teaching and learning methods, interpersonal relationships, organizational management, self management, and basic nursing practice. Analysis was performed by SPSS for percentile, mean, standard deviation, and correlation using the paired t-test. Results : Our study results showed that performance, autonomy, empowerment, and organizational commitment were significantly altered by training. After education for preceptors, performance, autonomy, empowerment, and organizational commitment were all enhanced. Performance was related with empowerment, and not with autonomy. Conclusion : This study suggests that the application of preceptorship as a nursing management intervention can benefit organizational efficiency.

• Journal of Korean Academy of Nursing
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• v.33 no.2
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• pp.236-245
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• 2003

Purpose: This study was to develop a screening model for identifying a high risk group of dementia and to develop and evaluate the web-based prevention program. Method: It was conducted in 5 phases. 1) Data were collected from dementia patients and non-dementia patients in a community. 2) A screening model of the high risk population was constructed. 3) The validity test was performed and the model was confirmed. 4) Four weeks-prevention program was developed. 5) The program was administered, and evaluated the effects. Result: The model consisted of age, illiteracy, history of stroke and hypercholesterolemia. The program was designed with 12 sessions, group health education using web-based individual instruction program, and 12 sessions of low-intensity physical exercise program. After the completion, their self-efficacy, and health behaviors in experimental group were significantly improved over those in the control group. The perceived barrier in the treatment group is significantly decreased. Conclusion: The screening model developed is very simple and can be utilized in diverse community settings. And the web based prevention program will encourage individual learning and timely feedback, therefore it can facilitate their active participation and promote health management behaviors at home.

• Journal of Korean Academy of Nursing
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• v.45 no.3
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• pp.337-346
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• 2015

Purpose: This study was conducted to develop a mobile web-based pregnancy health care educational program for mothers who were at an advanced maternal age (AMA) and to verify the effects of the program on pregnancy health care. Methods: This program was developed using a web-based teaching-learning system design model and composed of 10 subject areas. This research was a quasi-experimental study using a non-equivalent control group pretest-posttest time serial design and data were collected from April 2 to May 3, 2014. To verify the effects of the program, it was used for 2 weeks with 30 AMA mothers (experimental group). For the control group, a classroom education booklet for pregnant women used with 31 AMA mothers. Results: The experimental group having participated in program had statistically significantly higher scores for knowledge (t=3.76, p <.001), self-efficacy (t=8.54, p <.001), and practice behavior (t=4.88, p <.001) of pregnancy health care, compared to the control group. Conclusion: The results of the program indicate that a Mobile web-based pregnancy health care educational program is effective in meeting the needs of AMA mothers and can be used as the prenatal educational program for AMA mothers and is appropriate as an educational media for theses mothers.

• Journal of dental hygiene science
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• v.6 no.3
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• pp.193-199
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• 2006

The purpose of this study was to compare the ideas of dental hygiene education programs between Korea and America. The America dental hygiene education program aimed at development capacity such as comprehensive dental hygiene care, critical thinking and problem solving, self-assessment skill to prepare for and engage in life-long learning, effective interpersonal and communication skill which evidence-based approach to dental hygiene process.

• Korean Parent-Child Health Journal
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• v.12 no.1
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• pp.77-87
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• 2009

Purpose: The purpose of this study was to determine the knowledge of nocturnal emissions, or wet dreams and to provide information for developing a wet dream education program for elementary school boys. Method: The research design was a descriptive study through questionnaires. Data was collected from May 10, 2009 to May 20, 2009. A total of 197 late elementary school boys in Incheon, Korea participated in this study. Data was analyzed using the SPSS WIN 15.0 program. Result: The results of this study were as follows; Knowledge of wet dreams in late elementary school boys was low; The mean of the information about wet dreams was 14.00 on a 100 point scale; There were significant differences of knowledge regarding wet dreams according to the educational experience at 6 items and wet dreams experience at 12 items of total 21 items. This indicates that present education for wet dreams is not efficient and does not provide appropriate information when they need practical information. Conclusion: Self education learning program for wet dreams should be developed for late elementary school boys which includes different contents and time required for further study, evaluation and assessment.

• World Technopolis Review
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• v.5 no.1
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• pp.30-46
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• 2016

This paper is intended as an opening of a dialog on how to apply platform thinking in the development of innovation environments. It will briefly describe a new STP (Science and Technology Park) concept called 3GSP (Third Generation Science Park), which is gaining momentum in Finland. The paper explains the fundamental changes that are currently taking place in the global innovation environment and explains why platform thinking is becoming an essential element in ecosystem development. The theoretical background and classifications of platforms are described and the benefits to be gained from STP perspective are highlighted. The paper emphasizes especially the role of so called 'competence platforms' and explains the main characteristics of a fully working competence platform. The role of competence platforms in understanding serendipity and as a fundamental factor in building the team is also highlighted. The paper analyses from STP perspective several practical examples, where platform thinking supports the emergence of new innovation environments, including Urban Mill (Finland) and Meetberlage (Netherlands). The requirements for comprehensive competence platform services are presented and their potential to support community building and therefore ecosystem development is illustrated. This analysis will provide STP practitioners with new models for applying platform thinking and will help to establish co-creation, open innovation and serendipity management practices. The case studies presented will help STP management teams to evaluate the benefits of competence platforms in different contexts.

• Journal of Internet Computing and Services
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• v.17 no.5
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• pp.9-16
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• 2016

Pervasive computing and Internet of Things (IoT) have recently received considerable interest to deploy solutions for the future Internet. Smart environments are integrated with Semantic Web to provide context-awareness to the processed information. Self-learning techniques have been adopted within smart solutions for efficient retrieval of data but do not process data with privacy parameters for in-place authorization. To overcome this issue, we present a novel approach of deploying access control as a service mechanism within Semantic Web based smart environment by using eXtensible Access Control Markup Language (XACML). The proposed XACML as a Service (XACMLaaS) approach offers fine-grained access control for protecting information within smart environment. In this paper, we have defined mathematical rules for each components of proposed access control service layer. These rules are for implementation of access control using XACML. The proposed approach allows the adaptation of authorization of information at component level and provides scalable solution for authorization policies and rule enforcement within smart environment.