• Journal of Families and Better Life
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• v.28 no.6
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• pp.95-111
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• 2010

The purposes of this study were to show general trends in the aspects of psychological family environment (parental communication), peer factor, academic performance factor, depression perceived by adolescents and to examine possible changes in such trends in accordance with demographic variables and the family structure environment (parental marital status, family economic status, and parents' education level), and then to determine the effect of these variables on adolescents' depression. The subjects were 1009 middle and high school students in Seoul and Gyeonggi province. The main results were as follows: 1) Paternal communication was significantly lower in technical high school students, divorced/ separated parents, and families of lower economic status. Maternal communication was significantly lower in male students, divorced/sepa-rated parents, and families of lower economic status. Academic performance problems was significantly higher in males, technical high school students, divorced/ separated parents, families of lower economic status, and a less educated father. Peer relations was significantly lower in students of divorced / separated parents, and of families of lower economic status. Depression was significantly higher in technical high school students, divorced / separated parents, and families of lower economic status. 2) In the case of male students, paternal communication had both a direct and an indirect negative effect through peer relations on depression, while academic performance problems had both a direct and an indirect positive effect through peer relations on depression. Both peer relations and maternal communication had a positive and a negative direct effect on depression. School grade had both a direct and an indirect negative effect through paternal communication on depression. Parental marital status(divorced or separated) had both a direct and an indirect positive effect through academic performance problems on depression. Family economic status had only an indirect effect on discussed.

• Korean Journal of Child Studies
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• v.30 no.4
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• pp.33-46
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• 2009

In this analysis of relationships among parent-child communication style, child's sense of identity, and their effects on child's peer relationships, a survey was conducted of 506 6th grade students in 3 elementary schools of Incheon City. Data were analyzed by t-test, ANOVA, Pearson's correlation, and multiple regression analyses. Results showed that : girls had higher scores in academic identity and more positive factors in peer relationships than boys; when communications between parents and children were more open, peer relationships were more positive and less negative; children with a stronger sense of identity had more positive factors in peer relationships; social identity was the most influential factor in positive and general identity was the most influential factor in negative peer relationships, respectively.

• Journal of the Korean Home Economics Association
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• v.48 no.7
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• pp.33-48
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• 2010

The purpose of this study was to explore the effects of family structure(parentral marital status and socioeconomic status), parental communication, academic problems, and peer relationship on juvenile delinquency. The participants were 1009 middle school and high school students in Seoul city and Gyeonggi Province. The major results were as follows: 1) Parental marital status(divorced/seperated) had both direct and indirect positive effects and lower class in socioeconomic status had an indirect positive effect on academic problems and peer relationship on juvenile delinquency rates. 2) Open maternal communication had a direct negative effect on juvenile delinquency rates. However, open paternal communication had both direct and indirect negative effects. 3) Academic problems had both direct and indirect positive effects on juvenile delinquency rates. 4) Peer relationship had a direct positive effect on juvenile delinquency rates. 5) The level of effects that each variable had differed by delinquency types. Based on these results, implications for preventing juvenile delinquency were discussed.

• International Journal of Internet, Broadcasting and Communication
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• v.16 no.1
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• pp.36-46
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• 2024

This study is a descriptive survey to determine the effects of fundamentals of nursing skills education with peer evaluation on self-leadership, self-directed learning ability, and learning attitude. The factors affecting self-directed learning ability were peer evaluation, self-leadership, and learning attitude (F=118.81, p<.001), with an explanatory power of 50.4%. The factors affecting learning attitude were peer evaluation, self-leadership, and self-directed learning ability (F=48.89, p<.001), with an explanatory power of 29.5%. Based on the results of this study, we believe that it is necessary to apply various teaching methods such as peer evaluation and promote self-leadership to improve self-directed learning and learning attitude.

• Journal of Digital Convergence
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• v.20 no.4
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• pp.127-132
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• 2022

This study is a descriptive research to understand the leadership, communication ability, peer care behavior and relationship of nursing students. Data were collected from 192 nursing students in November 2021. The data were analyzed by t-test, ANOVA, Pearson's correlation ciefficients, using SPSS 28.0. As a result of the study, revealed positive correlations between leaderships and communication competence(r=.634, p<.001), communication competence and peer group caring interaction(r=.390, p<.001), leaderships and peer group caring interaction(r=.285, p<.001). Therefore, it is necessary to develop educational environment and programs to improve leadership, communication ability, and peer care behavior of nursing college students in the future.

• Korean Journal of Human Ecology
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• v.22 no.5
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• pp.433-445
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• 2013

The purpose of this study was to investigate the effects of children's temperament, parent-child communication, peer relationships on children's cognitive and affective happiness. The participants consisted of 396 elementary school students aged 10-13 dwelling in Jeonbuk province. Data was analyzed through descriptive statistics, t-test, regression analysis using the SPSS 18.0 program. The most salient results from this study were as follows: first, there were statistically significant differences in the children's happiness according to academic performance and family's economic level; children who considered themselves to have good grades and to have a higher standard of living were happier than other groups. However, there was no significant difference in children's happiness in relation to gender. Second, children's temperament(sociability, activity), parent-child open communication and peer relationships were positively associated with the children's cognitive and affective happiness. Children's emotional temperament, parent-child problem communication were negatively associated with the children's cognitive and affective happiness. Third, as the results of regression analysis, parent-child open communication, children's temperament(activity, sociability), peer relationships were considered to be the most influential factors in explaining cognitive happiness. And parent-child open communication, parent-child problem communication, children's temperament(activity) were influential factors in explaining affective happiness. In conclusion, children's happiness is critically affected not only by internal variables but also environmental ones such as parents and peers.

• Communications of Mathematical Education
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• v.23 no.2
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• pp.327-347
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• 2009

The purpose of the present study is to investigate the effects of mathematical communication-centered teaching using peer feedbacks on students' mathematics achievement and mathematical dispositions toward mathematics, and then this study examined the characteristics of feedbacks used by students. To do this study, two sixth grade classes selected from an elementary school in Seoul participated in the current study; one class for a treatment group applying mathematical communication-centered teaching using peer feedback, and the other for a comparison group applying traditional teaching using teacher-centered communication. The results of this study showed the fact that a treatment group of mathematical communication-centered teaching applying peer feedback scored statistically higher than a comparison group applying teacher-centered communication with respect to both students' mathematical achievement and disposition. Especially, this communication-centered teaching program focused on peer feedback was more effective to middle or lower level students than higher level students. In addition, mathematical communication-centered teaching applying peer feedbacks helps students reflect their own thinking process about problem solving, and students experienced the improvement of their confidence about mathematics from opportunities to provide peers with feedbacks. Finally, the present study suggests the important role of communication in mathematics learning, particularly student-to-student feedbacks rather than teacher-to-students feedbacks. That is to say, students need to have many opportunities to represent their own mathematical thinking processes using mathematical language.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.16 no.6
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• pp.65-73
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• 2016

Peer-to-Peer (P2P) systems with super-peer overlay networks show combined advantages of both hybrid and pure P2P systems. Super-peer is a special peer acting as a server to a cluster of generic peers. Organizing a super-peer network is one of important issues for P2P systems with super-peer networks. Conventional P2P systems are based on two-level hierarchies of peers. One is a layer for generic peers and the other is for super-peers. And it is usual that super-peer networks have forms of random graphs. However, for accommodating a large-scale collection of generic peers, the super-peer network has also to be extended. In this paper, we propose a scheme of hierarchically constructing super-peer networks for large-scale P2P systems. At first, a two-level tree, called a simple super-peer network, is proposed, and then a scheme of generalizing and then extending the simple super-peer network to multi-level super-peer network is presented to construct a large-scale super-peer network. We call it an extended super-peer network. The simple super-peer network has several good features, but due to the fixed number of levels, it may have a scalability problem. Thus, it is extended to k-level tree of a super-peer network, called extended super-peer network. It shows good scalability and easy management of generic peers for large scale P2P system.

• International Journal of Computer Science & Network Security
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• v.21 no.9
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• pp.91-98
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• 2021

Peer to Peer Networks play an increasing role in today's networks, also it's expected that this type of communication networks evolves more in the future. Since the number of users that is involved in Peer to Peer Networks is huge and will be increased more in the future, security issues will appear and increase as well. Thus, providing a sustainable solution is needed to ensure the security of Peer to Peer Networks. This paper is presenting a new protocol called Malicious Trust Managers Identification (MTMI). This protocol is used to ensure anonymity of trust manager, that computes and stores the trust value for another peer. The proposed protocol builds a secure connection between trust managers by using public key infrastructure. As well as experimental testing has been conducted to validate the proposed protocol.

• Journal of Ocean Engineering and Technology
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• v.11 no.4
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• pp.180-188
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• 1997

This paper proposes a new efficient MAC(Media Access Control) protocol to establish the ultrasonic communication network for underwater vehicles, which ensures a certain level of maximum throughput regardless of the propagation delay of ultrasonic and allows fast data transmission through the multiple ultrasonic communication channel. A MAC protocol for underwater communication network that allows 'peer-to-peer' communication between a surface ship and multiple underwater systems is designed, and the proposed control protocol is implemented for its verification.