• The Journal of Korean Institute of Communications and Information Sciences
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• v.38C no.12
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• pp.1134-1149
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• 2013

Pub/sub system enables data users to access any necessary data without knowledge of the data producer and synchronization with the data producer. It is widely used as the middleware technology for the data-centric services. DDS (Data Distribution Service) is a standard middleware supported by the OMG (Object Management Group), one of global standardization organizations. It is considered quite useful as a standard middleware for US military services. However, it is well-known that it takes considerably long time in searching the Participants and Endpoints in the system, especially when the system is booting up. In this paper, we propose a discovery scheme to reduce the latency when the participants and Endpoints are densely distributed in a small area. We propose to modify the standard DDS discovery process in three folds. First, we integrate the Endpoint discovery process with the Participant discovery process. Second, we reduce the number of connections per participant during the discovery process by adopting the concept of successors in Distributed Hashing scheme. Third, instead of UDP, the participants are connected through TCP to exploit the reliable delivery feature of TCP. We evaluated the performance of our scheme by comparing with the standard DDS discovery process. The evaluation results show that our scheme achieves quite lower discovery latency in case that the Participants and the Endpoints are densely distributed in a local network.

• Journal of radiological science and technology
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• v.42 no.6
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• pp.491-496
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• 2019

The purpose of this study was to apply a concept map to the first-year students of radiologic science and report its effects. The concept map is a visual representation of a major concept and related linking statements. Concept maps are useful tools for students to construct and organize content they have learned. The subjects of this study were first-year grade and at one university in Chungbuk, Korea. They were divided into active and passive participant groups in the class. And they were evaluated the educational effects such as satisfaction, fidelity, learning achievement, and interest before and after using the concept map. As a result, the passive participant group significantly increased the educational effect except for satisfaction, and the active participant group significantly increased the educational effect in all variables (p<0.05). These results showed that concept mapping, which induces first-year grade students to participate in class, could be helpful in radiologic education. It is expected to be used as basic data in various radiologic educational methodology studies in the future.

• The Journal of Korean Medicine
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• v.32 no.4
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• pp.128-138
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• 2011

Objective: This study aimed at providing preliminary data useful in reducing participant dropout and improving the quality of clinical trials, by analyzing the factors related to dropout. Methods: The data came from 15 acupuncture and/or moxibustion clinical trials (n=638; August 2005 to December 2009). Logistic regression analysis was used to reveal factors influencing participant dropout. Results: Gender, age, treatment method (intervention), treatment frequency, availability of follow-up, and presence of compensation treatment for the control group were factors influencing participant dropout. Conclusion: Subsequent studies of large-scale acupuncture and moxibustion clinical trials should address dropout factors that consider the character of each clinical trial, or general characters like participants' gender, age, occupation, and diverse diseases.

• Journal of Digital Convergence
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• v.14 no.11
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• pp.619-626
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• 2016

The purpose of this study was to investigate effects of physical activity and sedentary life in metabolically healthy obesity(MHO) and metabolically unhealthy obesity(MUO). A total of 1585 middle-aged obesity men and women participated in this study. The subjects were divided to MHO(n=840) and MUO(n=745) by metabolic syndrome markers(National Cholesterol Education Program-Adult Treatment Panel III). We analyzed measurement data using t-test. As results, physical activity and exercise participant between group had not significant difference in men subjects. But, in women subjects, total physical activity volume and muscle strength exercise participant between group had a significant difference. In conclusion, we suggest that physical activity and exercise participant are important factors affecting health status in the same level of obesity women.

• Asian Oncology Nursing
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• v.10 no.2
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• pp.156-162
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• 2010

Purpose: The purposes of this study was to compare the meaning in life and death attitude between the participants and nonparticipants of the well-dying education program. Methods: This study adopted the descriptive comparative design. Data were collected by interviewing 85 participants and 94 non-participants of well-dying education. The instruments used for this study were a self-report questionnaire. Results: There were significant differences in age, gender, marital status, health status, and volunteer experience. The program participants showed higher scores in the death attitude than non-participants. There were significant correlations between meaning in life and death attitude in participant group. Death attitude was significantly associated with meaning in life in participant group with 6.0% variance. Conclusion: Based on the results, well-dying education program was effective to prepare good death with more comprehensive vision. Therefore, this program should be served for patient with life-threatening illness by nurse and this is the expended role of oncology and hospice palliative nurses.

• Korean Journal of Adult Nursing
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• v.26 no.2
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• pp.171-180
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• 2014

Purpose: This study was to investigate the effects of upper meridian massage on cerebral blood flow, emotions, and sleep of the institutionalized elderly. Methods: This study was a nonequivalent control group pre- and post-test design. The participants were 50 elderly (26 in the experimental group; 24 in the control group) living in the institutions. Data were collected between July 9 and September 1, 2011. The data were analyzed using descriptive statistics, t-test, and $x^2$-test, Repeated Measures ANOVA, and Cronbach's ${\alpha}$ coefficient. Each participant in the experimental group received the upper meridian massage for 10 minutes, 4 times per week for 2 weeks. Each participant's cerebral blood flow and self-reported questionnaires were tested before treatment, after 1 week and 2 weeks during treatment sessions. Results: There were significant differences in sleep and emotions after 1 week and 2 weeks during treatment sessions. But cerebral blood flow measured by common carotid artery pulsatility index (CCA PI) and common carotid artery resistance index (CCA RI) demonstrated significant differences in 2 week point in time. Conclusion: These results indicated that upper meridian massage could be an effective intervention for improving cerebral blood flow, emotions, and sleep of the institutionalized elderly.

• Journal of the Korean Institute of Landscape Architecture
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• v.43 no.1
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• pp.120-131
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• 2015

This research aimed at understanding recognition of the park's community garden, public evaluation of it, and user awareness of the public enhancement plan. This was based on the problem that arose in the park community garden as public awareness research along with community garden cultivation participation within the urban park. In order to compare recognition differences along with community garden cultivation participation, the researcher conducted an analysis by dividing research participants into a cultivation participant group and non-participant group. As a result first, the cultivation participant group positively recognized the necessity of the community garden compared to the non-participant group. However, they recognized the community garden as a space for private profit, which threatened the public aspect of the park. Second, as a result of evaluating community garden publicness, the non-participant group which was alienated from community garden use, had a negative opinion about the community garden. Third, as a result of researching awareness of the community garden distribution method and consumption to promote publicness of the community garden, the cultivation participant group recognized the community garden as a space for private profit. Therefore, it is necessary for both groups to be aware of the public value of the community garden among the park users for sustainable management and operation. The significance of this research is the direction in the aspect of users to form, manage and operate the community garden in the urban park without damaging publicness of the park or conflicting between the function of the park and the function of the community garden. Henceforth, the researcher expects that this research can be utilized to maintain publicness of the park in respect of formation of the community garden in the park and management and operation.

• The Journal of the Korea Contents Association
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• v.14 no.12
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• pp.1010-1020
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• 2014

This study intended to compare and analyze the difference between resilience and academic stress of juveniles depending on having experience in participating in the camp, and furthermore, to analyze how the camping participation degree of juveniles affect resilience and academic stress. To do so, this study selected teenagers as a population among camping ground users located in Chungcheong and Kyunggi region in 2014, sampled out total 300 participants of 150 camping participants and 150 non-participants using purposive sampling method, then selected final 295 subjects for the final analysis. Validity and credibility of questionnaire were verified through factor analysis and reliability analysis. For data processing, the t-test and multiple regression analysis were used using SPSSWIN 18.00 program. Conclusions are as follows. First, the camp participant group of juveniles showed higher resilience than the non-participant group. Secondly, it was identified that among camping participation degree of juveniles, the resilience of positivity decreased when the length of stay was longer. Thirdly, the camp participant group of juveniles showed lower academic stress than the non-participant group, but did not who significant difference statistically. Fourthly, the school record stress and assignment stress decreased when the participation degree, the length of stay, among camping participation degree of juveniles was longer. Fifthly, it was identified that the better the resilience strengthened by participating in the camp, the academic stress decreased.

• Journal of Korean Academy of Nursing
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• v.30 no.5
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• pp.1133-1144
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• 2000

This study was conducted to evaluate the effects of the program for the autistic children which was designed to promote mother-child attachment. The subjects of this study were consisted of 11 pairs of mother and child( 7 for participant group:PG, 4 for non-participant group: NPG), who were diagnosed as Pervasive Developmental Disorder. The intervention was consisted with play activity centered mother-child interaction, educational activity for mothers, lecture, video-feedback, and supports. The main data were collected by video-taping and analyzed by Wilcoxon Rank Sign Test, and Content Analysis. The results obtained were as follows, 1. Before the program, there were no significant group differences on the children's and the mother's characteristics. After the program, total score on the attachment of PG was higher than that of NPG, but not significant. Only proximity-seeking behaviors and contact-maintaining behaviors were higher significantly(p<.05). Then the characteristics on contact- maintaining behaviors of PG were lasting longer and reciprocal than those of NPG. 2. After the program, the score on mother's nurturing behavior of PG was significantly more increased. The mother's behaviors to her child of PG became more child- centered, positively responsive, expressive supportively. But there were pretty big individual difference. It can be concluded that Mother-child Attachment Promotion Program is effective. Thus it can be recommended to be a early intervention model for autistic children.

• Journal of Digital Convergence
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• v.19 no.9
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• pp.373-383
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• 2021

The purpose of this research was to develop an un-tact group counseling program to deal with the conflicts in the relationship of unmarried couples and to verify the effect of the program for improving emotional cognition and emotion regulation of unmarried couples. The research procedure consisted of the program development step and the program verification step, and in detail, 8 steps of program development processes were established. The subjects of the research were 11 unmarried couples, and 4 group were organized. The group counseling program was conducted once a week (2 sessions), a total of 10 sessions for 5 weeks. The effect was analyzed quantitatively and qualitatively. As a result of quantitative analysis, the participant's relationship satisfaction was significantly improved and there was a significant change in some relationship emotional schemas of participants. As a result of qualitatively analysis through participant's program review, participant's emotional understanding and the couple relationship were improved, and the group effect of the couple group counseling was found. Finally, the significance and limitations of this study were presented.