Journal of the Korea Institute of Information Security & Cryptology
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v.18
no.2
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pp.49-63
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2008
RDF is the base ontology model which is used in Semantic Web defined by W3C. OWL expands the RDF base model by providing various vocabularies for defining much more ontology relationships. Recently Jain and Farkas have suggested an RDF access control model based on RDF triple. Their research point is to introduce an authorization conflict problem by RDF inference which must be considered in RDF ontology data. Due to the problem, we cannot adopt XML access control model for RDF, although RDF is represented by XML. However, Jain and Farkas did not define the authorization propagation over the RDF upper/lower ontology concepts when an RDF authorization is specified. The reason why the authorization specification should be defined clearly is that finally, the authorizatin conflict is the problem between the authorization propagation in specifying an authorization and the authorization propagation in inferencing authorizations. In this article, first we define an RDF access authorization specification based on RDF triple in detail. Next, based on the definition, we analyze the authoriztion conflict problem by RDF inference in detail. Next, we briefly introduce a method which can quickly find an authorization conflict by using graph labeling techniques. This method is especially related with the subsumption relationship based inference. Finally, we present a comparison analysis with Jain and Farkas' study, and some experimental results showing the efficiency of the suggested conflict detection method.
Purpose: This aim of this phenomenological study was to describe and understand the experience of spiritual conflict in hospice nurses by identifying the meanings and structures of the experience. Methods: Participants were 12 nurses working for one year or more at hospice units of general hospitals in a metropolitan city and experiencing of spiritual conflict as hospice nurses. Over six months data were collected using individual in-depth interviews and analyzed with the method suggested by Colaizzi. Results: The experience of spiritual conflict in participants was organized into three categories, six theme-clusters, and 13 themes. The participants felt existential anxiety on death and a fear of death which is out of human control and skepticism for real facts of human beings facing death. They also experienced agitation of fundamental beliefs about life with agitation of the philosophy of life guiding themselves and mental distress due to fundamental questions that are difficult to answer. Also they had distress about poor spiritual care with guilty feelings from neglecting patients' spiritual needs and difficulties in spiritual care due to lack of practical competencies. Conclusion: Findings indicate the experience of spiritual conflict in hospice nurses is mainly associated with frequent experience of death in hospice patients. The experience of spiritual conflict consisted of existential anxiety, agitation of fundamental beliefs and distress over poor spiritual care. So, programs to help relieve anxiety, agitation and distress are necessary to prevent spiritual conflict and then spiritual burnout in hospice nurses.
This study examines adolescent delinquent behavior and the influence of friends, focusing specifically on friends' delinquent behavior and the influence of self-efficacy, parent-child conflict and parental control. A total of 1,399 adolescents attending five different high schools (male=642, female=756, consisting of 915 student attending high school and 484 students attending vocational high school) completed a questionnaire developed by Ahn, Hwang, Kim and Park (1997) and Bandura's (1995a) self-efficacy scale. Results indicate that those students who attend high school had parents with higher education, socio-economic status and better studying environment at home, while students attending vocational high school had higher parent-child conflict. Students attending high school had higher self-efficacy scores, while students attending vocational high school had higher scores on delinquent behavior. The results of LISREL analyses revealed a similar pattern for high school and vocational high school students. Combined analysis indicate that friends' delinquent behavior, parent-child conflict and parental control had direct and positive effect on students' delinquency behavior. Self-efficacy had a direct and negative influence of delinquency behavior. Similar pattern was obtained for friends' delinquency behavior, in which self-efficacy had a direct and negative influence of their delinquency behavior and their parent-child conflict and parental control had direct and positive effect on their delinquency behavior. In summary, those students who had lower self-efficacy, higher parent-child conflict and parental control, and with friends who are more likely to engage in delinquent behavior, had higher scores on delinquent behavior. Also, those students who had friends with lower self-efficacy scores and with higher parent-child conflict and parental control are more likely to engage in delinquent behavior, which in turn influenced their delinquent behavior. Friends' delinquent behavior had the greatest influence on students' delinquent behavior indicating the role of friends in influencing delinquency among adolescents.
This study examines different individual and environmental factors that affect children's self-control. For an analysis, locus of control, perceived competence, and achievement motivation were all included in individual variables. For family variables, mothers' parenting and patents' marriage conflict were examined. For classroom psycho-social environment, teacher support, peer relationship, class involvement, and teachers' supervision were used. The sample consisted of 548 fifth and sixth grade children. Statistics and methods used for the data analysis were Cronbach's alpha, frequency, percentage, Pearson's correlation, and Hierarchical Regression. Several major results were found from the analysis: First, locus of control, perceived competence, and achievement motivation had a positive correlation with children's self-control. Second, mothers' affective parenting had a positive correlation with children's self-control. However, mothers' controlling parenting and parents' marriage conflict had a negative correlation with it. Third, teacher support, peer relationship, and class involvement had a positive correlation with children's self-control. In addition, teacher supervision had a positive correlation with girls' self-control. Fourth, class involvement, locus of control, and academic competence were important variables predicting boys' self-control. On the other hand, Class involvement, achievement motivation, academic competence, teacher's supervision, and mothers' controlling parenting were important variables predicting girl's self-control.
RDF and OWL are the primary base technologies for implementing Semantic Web. Recently, many researches related with them, or applying them into the other application domains, have been introduced. However, relatively little work has been done for securing the RDF and OWL data. In this article, we briefly introduce an RDF triple based model for specifying RDF access authorization related with RDF security. Next, to efficiently find the authorization conflict by RDF inference, we introduce a method using prime number graph labeling in detail. The problem of authorization conflict by RDF inference is that although the lower concept is permitted to be accessed, it can be inaccessible due to the disapproval for the upper concept. Because by the RDF inference, the lower concept can be interpreted into the upper concept. Some experimental results show that the proposed method using the prime number graph labeling has better performance than the existing simple method for the detection of the authorization conflict.
Given the daily tactical schedule, the purpose of the traffic management system is to develop operating plan that will achieve the stated schedule as best as possible. The operating plan has to be modified during the day because of occurring disturbance(e.g. delay, infrastructure breakdown, etc.) Conflict detection and resolution(CDRS) are aimed for adjusting the distorted schedule to tactical schedule. Our research separate CDRS into two hierarchy modules, line conflict control module and station conflict control module. We define the role of each modules and design the cooperative architecture. We suggest the conflict detection and resolution approach based on mathematical model. These results can be implemented as prototype modules.
Purpose: This study was to examine the possibility of the contact with pornographs of elementary school boys and girls and to confirm responses after that, and to compare the feeling of sexual conflict between the boys and girls. Methods: The subjects were 952 5th and 6th graders of elementary school in four city areas(456 boys, 496 girls). Data collection was via questionnaires Results: Except several pupils(34.4% of boys, 27.4% of girls), most of subjects of the study had no contact with pornographs. The response after the contact with pornographs was feeling of shame the most, which was a negative reaction. The sexual conflict appeared more in pupils who had contact with pornographs than in those who had not boys(t=3.84, p<.000), girls(t=3.96, p<.000), which showed a significant difference. However, the conflict between boys and girls was not significant statistically. Conclusion: We would like to suggest that a sound control system must be prepared and a development of programs related to sexual education and promotion of ability fighting against them that can release their impulse of sex.
The impact of gender, sex-role identity and cultural background on self - control behaviors was studied with the use of reports from 410 college students(201 Koreans and 209 Americans), who were administered both the Bem Sex Role Inventory and the Missouri Self Control Instrument. Gender, sex - role identity and cultural background significantly affected self - control and satisfaction. Regardless of cultural background, males showed a higher level of self - control and satisfaction than females. Androgenous students from both nations used a higher level of expressed/yielded self - control and more satisfied than the students with other sex - role identities. There were some differences in self - control between the Korean and American students. For the American students, the level of expressed self - control was the critical factor in explaining self - control behavior, whereas the level of yielded self - control was the critical factor for the Korean students. This was explained as a phenomenon of culture - bound relationships. Regardless of sex and sex - role identity, the level of satisfaction of Korean students was significantly lower than that of American students. The present results suggested that Korean students have some sort of conflict between self - control and satisfaction. The conflict can probably be attributed to the recent influx of western culture emphasizing goal - oriented control.
This study aims to offer base line data for efficient conflicts control measures by first, analyzing the current situation of the regional comprehensive development project and second, identifying level, type and cause of the conflicts appeared during the development business promotion. For this purpose, theoretical side of this study establishes a basic frame by reviewing the existing researches in order to analyze the characteristics of the conflicts between the participation subjects in the development business, and the empirical side conducts survey and analysis on the awareness on these conflicts. As a result of the analysis, the survey revealed the followings. First, the respondents were aware of the overall promotions of the business quite positively, second, the conflicts were considered as a major obstacle against the development project promotion just as the other negative factors, third, majority of the responses on the seriousness of the conflicts were neutral which meant that the conflicts could be deepened by situations, fourth, most respondents had positive recognition on the needs of conflict control training and its effectiveness, and last but not least, most respondents of the survey revealed their intentions to take parts in trouble shooting from the conflicts. Based on the results above, we were able to extract several elements to consider preparing the countermeasures for the conflicts. First, specific plan should be arranged and institutionalized in order to control the conflicts between the residents at the initial stage of the development business or even before. Second, the specific plan must lower its threshold for easy participation of the residents in that region and make the residents main body of the conflict control. Third, enhanced conflict control education must be provided to the residents of the region where comprehensive development plan is in progress or being prepared.
Journal of the Korean Society of Marine Environment & Safety
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v.22
no.6
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pp.688-693
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2016
In this study, various conflicts in the maritime police organization were diagnosed and police subculture, which is different from dominant mainstream maritime police culture, was concluded to cause conflicts. In addition, maritime police conflicts and conflicts due to the balance, confrontation, and contradiction between bureaucratic and democratic values in the maritime police organization itself are discussed. The results of analysis on the effects of Maritime police subculture on organizational conflict are as follows: First, the influence of cynicism on functional conflict was explored. The higher the level of lies of the persons under investigation, the more functional conflict appeared. Also, if a person showed a low level of credibility among the police, this also led to functional conflict. In addition, if an individual showed low levels of cooperation and credibility with the police, this resulted in hierarchical conflict. Second, the influence of machismo on functional conflict was also explored. It was found that female officers experienced conflicts because of poorer job performance compared to male counterparts. In hierarchical issues, female officers experienced conflict over the reduced scope of tasks assigned to them and lower job performance ability. Third, the effect of non-acceptance of change in functional conflict was not statistically significant. An aggressive attitude toward crime control and rejecting jobs unrelated to crime influenced functional conflict, and an aggressive attitude and performing jobs unrelated to crime lead to functional conflict.
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