• Korean Journal of Social Welfare
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• v.53
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• pp.209-230
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• 2003

This is the study to find out the differences between the mandated reporters who reported child abuse and who did not report and to know which factors affect the reporting behavior The researcher sent questioners to 595 doctors, teachers, nurses and social workers in 3 different cities as a sample. 477 people responded to questioner and only 116 people who said that they have found out abused child during the last year were used for analysis of this research. Among 116 people, only 35.4% reported child abuse. There were significant differences between two groups, groups that reported child abuse and groups that did not report, in attitude about Abuse, the experience of child abuse training and knowledge about abuse. However, the result of Logistic regression showed that reporting behavior are significantly affected by occupation, experience of child abuse training and severity of abuse.

• KIISE Transactions on Computing Practices
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• v.22 no.8
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• pp.357-362
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• 2016

A social network or bio network is one of the complex networks that are formed by connecting specific relationships between interacting objects. Usually, these networks consist of community structures. Automatically detecting the structures is an important technique to understand and control the interaction objects. However, the topologies and structures of the networks change by interactions of the objects, with respect to time. Conventional techniques for finding the community structure have a high computational complexity. Additionally, the methods inefficiently deal with repeated computation concerning graph operation. In this paper, we propose an incremental technique for detecting interaction-based communities in dynamic networks. The proposed technique is able to efficiently find the communities, since there is an awareness of changed objects from the previous network, and it can incrementally reuse the previous community structure.

• Korean Journal of School Psychology
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• v.17 no.1
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• pp.125-144
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• 2020

Only a few studies have investigated the influence of career calling on career adaptability and the mechanisms behind this relationship, so this investigated how the search for and presence of meaning, the two elements of meaning in life, affect this relationship. 247 Participants completed a survey on career calling, career adaptability, the search for meaning and the presence of meaning. Correlational analysis was conducted to examine the relationships between the research variables. A serial multiple mdediating effects test was conducted to test the proposed mediating effects. Finally, a bootstrapping procedure was used with SPSS Macro to test the significance of the indirect effects. The results were as follows: First, career calling was positively related with career adaptability. Second, the search for and presence of meaning both partially mediated the relationship between career calling and career adaptability. This result implies that the search for meaning alone can lead to positive outcomes, such as increasing career adaptability, a result not found in previous studies. Third, the relationship between career calling and career adaptability was sequentially mediated by the search for meaning and the presence of meaning. This paper ends with a discussion of implications of this study's results in clinical practice and this study's limitations.

• Journal of The Korean Association For Science Education
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• v.27 no.3
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• pp.263-271
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• 2007

The purpose of this study was to investigate the relationships between the ability of students' raising creative problems and academic achievement, science inquiry skills and creative personality of high school students. In order to evaluate the originality of problems, the present study used three methods: evaluation by frequency, teacher, and student. The results in this study turned out to be as follows: First, there was not much difference in the three methods. But familiar problems had the possibility of receiving higher marks. Second, the ability of students' raising creative problems was significantly correlated with academic achievement and creative personality, but there was no correlation with science inquiry skills. The subjects were divided into 2 groups by students' originality score. In the higher score group, the ability of students' raising creative problems was significantly correlated with creative personality, but in the lower score group, it was significantly correlated with academic achievement. Third, as for science inquiry skills and creative personality between two groups, there was no significant difference, whereas as for academic achievement(physics I, chemistry I), there was significant difference.

• The Korean Journal of Nuclear Medicine
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• v.37 no.6
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• pp.374-381
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• 2003

Purpose: Determining an appropriate thresholding is crucial for PDG PET analysis since strong control of Type I error could fail to find pathological differences between eariy Alzheimer' disease (AD) patients and healthy normal controls. We compared the SPM results on FDG PET imaging of early AD using uncorrected p-value, random-field based corrected p-value and false discovery rate (FDR) control. Materials and Methods: Twenty-eight patients ($66{\pm}7$ years old) with early AD and 18 age-matched normal controls ($68{\pm}6$ years old) underwent FDG brain PET. To identify brain regions with hypo-metabolism in group or individual patient compared to normal controls, group images or each patient's image was compared with normal controls usingthe same fixed p-value of 0.001 on uncorrected thresholding, random-field based corrected thresholding and FDR control. Results: The number of hypo-metabolic voxels was smallest in corrected p-value method, largest in uncorrected p-value method and intermediate in FDG thresholding in group analysis. Three types of result pattern were found. The first was that corrected p-value did not yield any voxel positive but FDR gave a few significantly hypometabolic voxels (8/28, 29%). The second was that both corrected p-value and FDR did not yield any positive region but numerous positive voxels were found with the threshold of uncorrected p-values (6/28, 21%). The last was that FDR was detected as many positive voxels as uncorrected p-value method (14/28, 50%). Conclusions FDR control could identify hypo-metaboiic areas in group or individual patients with early AD. We recommend FDR control instead of uncorrected or random-field corrected thresholding method to find the areas showing hypometabolism especially in small group or individual analysis of FDG PET.

• Journal of The Korean Association For Science Education
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• v.32 no.4
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• pp.570-585
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• 2012

The Korean national curriculum for secondary school emphasizes scientific problem solving. In line with the national curriculum, many educational studies have been conducted in relation to science education. The objects of these studies were well-defined and well-structured problems. The studies were criticized for overlooking ill-defined and ill-structured problems. Some research has dealt with problem finding in ill-structured problems, which is related to creativity. There is a need for a study of scientific problem finding process in an ill-structured problem situation, because this study will help teachers wanting to teach scientific problem-finding in an ill-structured problem situation. The objective of this study was to conduct an empirical study on the scientific problem finding process in an ill-structured problem situation. One task of scientific problem finding in an ill-structured problem situation was assigned to 92 university students; thereafter, 32 of them participated in the research through interviews. Results indicated that the scientific problem finding process depended on initial clues and tentative solutions. Initial clues were affected by students' experiences, such as major classes, films, and novels. Tentative solutions were influenced by background knowledge of the tasks. Students screened information browsed on the Internet. They applied some standards for selection, particularly emphasized reliability standards, which are supposed to be studied in other contexts. All the students used assumptions to make their problems appear probable, which could be a useful tool to articulate.

• Journal of the Institute of Electronics and Information Engineers
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• v.50 no.1
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• pp.51-63
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• 2013

Recently with base apply MANET with the application for the service discovery and delivery which are various techniques are being proposed the result of such MANET base research techniques from actual inside. This dissertation proposes T-Chord(Trustworthy-based Chord) Ring system for MANET to guarantees from such requirements. T-Chord Ring system in order to manage Efficiently the services which the mobile nodes provide is the service discovery system which uses P2P overlay network Technique in mobile environment. The system which is proposed MANET communications in order to accomplish a service discovery operation with physical network class and logical network class will be able to minimize problems from about MANET service discoveries, and uses the dispersive hash table technique for a service discovery and effectiveness of service discovery improves and will be able to guarantee the expandability of network size. The mobile nodes(mobile device) have a mobility from MANET and operate with service request node, service provide node and service transmit node. The mobile nodes will be able to elect cluster header using Trustworthy that was evaluated service request, provision and delivery in each other. The system which is proposed a service discovery and a delivery efficiently will compose the cluster head which will grow of P2P overlay networks and will be able to accomplish. The system which proposes from dissertation is composed of Trustworthy evaluations of MANET mobile nodes, service information collection which is dispersed and P2P overlay networks that composed of Chord algorithm modules which provide O(Log N) efficiencies. The system comparison evaluation analyzes an efficiency from the expandability side of effectiveness and the network of service discovery technique and the service discovery message over head, service discovery and delivery of former times and service discovery and delivery is excellent gives proof from MANET.

• Korean journal of applied entomology
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• v.17 no.2 s.35
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• pp.89-98
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• 1978

A study on the root-knot nematodes (Meloidogyne spp.) affecting economic crops in Korea was undertaken to know the distribution of the nemic fauna. Total 66 samples were taken from soil and root of 24 host plants at different localities in 4 provinces. Four Meloidogyne species such as Meloidogyne hapla, Meloidogyne arenaria, Meloidogyne incognita and Meloidogyne javanica were identified and some morphological characteristics were described. One of these, Meloidogyne javanica was reported newly in Korea from Horticultural Experimental Station, Suweon, Gyeong Gi on potato, Geomsadong, Daegu on chinese cabbage, Sangeogdong, Daegu, Gyeong Bug on violet and Choeumri, Namhae, Gyeong Nam on pumpkin. In Jae Ju province, Meloidogyne incognita was only found except the other three species. The most common and widely distributed Meloidogyne species in Korea is Meloidogyne hapla by $50\%$ in total, next Meloidogyne incognita $33.3\%$ Meloidogyne arenaria $10.6\%$ Meloidogyne javanica $6.0\%$ in turn, The root-knot nematodes infected the most severely in Jae Ju province and Gyeong Nam, Gyeong Bug and Gyeong Gi province in turn. Twenty four plants were attacked by root-knot nematodes among them important economic crops are soybean, peanut, potato, tomato, cucumber, carrot, pumpkin, wateremelon, edible burdock, pepper, eggplant, cabbage, lettuce and tobacco in Korea.

• Journal of Gifted/Talented Education
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• v.18 no.1
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• pp.23-52
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• 2008

The purpose of this study was to examine the Structural Equation Model (SEM) of scientific problem finding ability based on science related attitude, motivation and self-regulation learning strategy of the gifted in science. A total of 153 scientifically gifted students were selected from a university-based Sifted education center The instruments used for the study were Test of Science-Related Attitudes, Motivated Strategies for Learning Questionnaire (MSLQ), and Science Problem Finding Test. In order to examine Structural Equation Model (SEM) of scientific problem finding ability, we assumed scientific problem finding model related to science inquiry, model I (domain specific), and scientific problem finding model related to creativity, model II (domain general) The results of this research are as follows. First, the correlations between science related attitudes and MSLQ were significant; motivation and self-regulated learning strategy as sub factors were positively correlated to science related attitudes. Only scientific attitude as a sub factor of science related attitudes was significantly correlated to elaboration of creativity category in scientific problem finding ability. In other hand, self-regulated learning strategy was significantly correlated to elaboration, inquiry motivation and inquiry level in scientific problem finding ability. Second, as the results of SEM analysis, we confirmed model I and model II were the best adequate through the indices of best fit (TLI, CFI>.90, RMSEA<.08); scientific problem finding ability was directly influenced motivation and self-regulated learning strategy but science related attitudes indirectly influenced scientific problem finding ability through motivation and self-regulated learning strategy. Based on the results, the implications for science gifted education were discussed.

• The KIPS Transactions:PartA
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• v.17A no.5
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• pp.237-248
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• 2010

UPnP(Universal Plug and Play) is a middleware of DLNA (Digital Living Network Alliance) services a home network. UPnP supports the connections between each other devices in networks and also provides service discovery and advertisement with SSDP(Simple Service Discovery Protocol), which is generally designed for wired networks. SSDP operates on multicasting discovery request and advertisement and unicasting a reply in networks. It is a challenge issue for service discovery protocol such as SSDP to provide a stable and effective service in wireless ad-hoc networks. Wired based service discovery protocol does not consider the dynamics of wireless ad-hoc network. In that case, the nodes are freely in or out. Therefore, this paper proposes a flexible SSDP(fSSDP) which is a peer-to-peer(P2P) discovery protocol adopted for wireless ad-hoc Networks. It is implemented on the extension of SSDP. fSSDP supports a functionality that the broadcast area of service discovery dynamically changes with the periodically updated area of advertisement. It is good for reducing messaging overhead caused from the broadcast flooding of service discovery in wireless ad-hoc network.