• The Journal of the Korea Contents Association
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• v.18 no.2
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• pp.158-168
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• 2018

The purpose of this study was to investigate the effect of applying physical expression program through dancing on the post-traumatic growth of domestic violence female victims. The subjects of this study were female victims of domestic violence living in shelters (7 facilities) for women victims of domestic violence in Seoul, consisting of 23 experimental groups and 23 control groups. The dancing healing physical expression program applied to the experimental group consisted of 18 sessions, which was conducted three times a week for 6 weeks, and each session was conducted for 90 minutes. This study was aimed to dancing based on physical expression and movement experience, but focuses on improvisational, non-formal and creative expression for inner expression. We referred to the activities and principles of previous studies, and applied characters, which were counseling techniques, interactions, and healing principles of previous counseling psychology studies on domestic violence and trauma, to every stage of the session. As a result of this study, it was found that the dancing healing physical expression program had an effect on the entire post-traumatic growth of the experimental group and lower dimension lists of the depth of interpersonal relationship, self-perception, potential discovery, spiritual interest level, The results of the post - test were compared. There was a significant difference between the experimental and control groups after the test. In conclusion, this study aimed to understand the fundamental and healing attributes of dance, and provided basic data to establish a virtuous intervention strategy that provided opportunities for self-recovery to those who experienced psychological pain, such as women victimized by domestic violence at the social aspect.

• Journal of Elementary Mathematics Education in Korea
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• v.13 no.1
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• pp.97-114
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• 2009

The purpose of this study was to investigate the effects of digital mathematics textbook on spatial abilities, interest and achievement of 6th graders. For this, research questions were set as follow: A. Is there any difference in cognitive ability in the space perception test between the experimental group and the control group. B. What distinctive attributes exist between the experimental group and the control group in the Spatial abilities? C. Is there any difference in learners' interest and achievement between the experiment group and the control group. To investigate the research questions, two classes of 6th grade children were selected from an elementary school in Daejeon and assigned one as experimental group and the other as control group. The experimental group studied mathematics using Digital Textbooks under an individual PC environment while the control group studied using the existing book-type textbooks. The following results and conclusions were obtained from the research. First, the effect of the Digital Textbooks on children's mathematics achievement was not statistically meaningful even though there was some progress in children's achievement. Furthermore, it was not found that the usage of a Digital Textbooks consistently influenced improvement in the students' interest in mathematics. Second, there were some positive changes in the achievement of Spatial ability of the middle subgroup of pretest score in the experiment group. It can have some educational implication that the Digital Textbooks can affect positively to the middle group in mathematics achievement who dominated more than 50% of the class. Third, the number of correct answers was found to be somewhat higher than that of the control group in spatial reasoning items. This means that the learning environment with Digital Textbooks allow more opportunities for manipulating geometric objects physically and mentally. Therefore, It seems necessary to offer various resources such as digital contents for students' geometric learning. For future research, It is strongly recommended to fix the bugs of the digital textbook programs and to upgrade the operating system of the computer.

• Journal of The Korean Association For Science Education
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• v.42 no.5
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• pp.515-524
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• 2022

In this study, the relationship between the perception of 'scientific creativity' and 'scientific creativity education' of pre-service elementary school teachers was explored, focusing on the creativity within and between the framework. Within-frame creativity is divided into theoretical creativity and experimental creativity that operate within the paradigm, and between-frame creativity refers to theoretical creativity that brings about paradigm shift. Data collection was conducted through in-depth interviews, and the analysis was performed based on the categories within and between the frames. As a result, pre-service elementary school teachers mainly understood scientific creativity as the scientific creativity within a frame. And they consider scientific creativity in various ways in experimental and theoretical creativity aspects within a frame. On the other hand, they thought that scientific creativity education was possible in terms of experimental creativity within a frame. Based on the results of this study, we would like to discuss the attributes of scientific creativity that can be considered in science education and its educational direction.

• Journal of KIISE:Computer Systems and Theory
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• v.32 no.2
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• pp.95-105
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• 2005

This paper proposes a new dynamic video adaptation scheme that could generate an adapted video stream customized to the requesting mobile device and current network status without repeated decode-encode cycles. In the proposed adaptation scheme, the characteristics of the video codec such as MPEG-1/-2/-4 are analyzed in advance focused on the relationships between the size and Quality of the encoded video stream, and they are stored in the proxy as a codec-dependent characteristic table. When a mobile device requests a video stream, it is dynamically decoded-encoded in the proxy with the highest quality to extract the contents-dependent attributes of the requested video stream. By comparing these attributes with codec-dependent characteristic table, the size and Quality of the requested video stream when being adapted to the target mobile device could be predicted. With this prediction, a version of adapted video stream, that meets the size constraints of mobile device while keeping the quality of encoded video stream as high as possible, could be selected without repeated decode-encode cycles. Experimental results show that the errors in our proposed scheme are less than 5% and produce an appropriate adapted video stream very quickly. It could be used t(1 build a proxy server for mobile devices that could quickly transcode the video streams widely spread in Internet which are encoded with various video codecs.

• Journal of KIISE:Databases
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• v.30 no.3
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• pp.336-349
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• 2003

Histograms have been getting a lot of attention recently. Histograms are commonly utilized in commercial database systems to capture attribute value distributions for query optimization Recently, in the advent of researches on approximate query answering and stream data, the interests in histograms are widely being spread. The simplest approach assumes that the attributes in relational tables are independent by AVI(Attribute Value Independence) assumption. However, this assumption is not generally valid for real-life datasets. To alleviate the problem of approximation on multi-dimensional data with multiple one-dimensional histograms, several techniques such as wavelet, random sampling and multi-dimensional histograms are proposed. Among them, GENHIST is a multi-dimensional histogram that is designed to approximate the data distribution with real attributes. It uses overlapping buckets that allow more efficient approximation on the data distribution. In this paper, we propose a scheme, OPT that can determine the optimal frequencies of overlapped buckets that minimize the SSE(Sum Squared Error). A histogram with overlapping buckets is first generated by GENHIST and OPT can improve the histogram by calculating the optimal frequency for each bucket. Our experimental result confirms that our technique can improve the accuracy of histograms generated by GENHIST significantly.

• Journal of KIISE:Databases
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• v.37 no.2
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• pp.71-81
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• 2010

The problem of finding clusters is widely used in numerous applications, such as pattern recognition, image analysis, market analysis. The important factors that decide cluster quality are the similarity measure and the number of attributes. Similarity measures should be defined with respect to the data types. Existing similarity measures are well applicable to numerical attribute values. However, those measures do not work well when the data is described by categorical attributes, that is, when no inherent similarity measure between values. In high dimensional spaces, conventional clustering algorithms tend to break down because of sparsity of data points. To overcome this difficulty, a subspace clustering approach has been proposed. It is based on the observation that different clusters may exist in different subspaces. In this paper, we propose a new similarity measure for clustering of high dimensional categorical data. The measure is defined based on the fact that a good clustering is one where each cluster should have certain information that can distinguish it with other clusters. We also try to capture on the attribute dependencies. This study is meaningful because there has been no method to use both of them. Experimental results on real datasets show clusters obtained by our proposed similarity measure are good enough with respect to clustering accuracy.

• Proceedings of the Korean Society of Crop Science Conference
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• 2017.06a
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• pp.183-183
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• 2017

In the early part of rice growth, root volume primarily limits the amount of plant-accessible nitrogen (N). Therefore, knowledge of the root development is important for modeling N uptake of rice. The timing when the volume of rhizosphere cover the whole soil is also important to carry out timely top dressing. However, information about initial root expansion and associated N uptake is limited due to intrinsic technical difficulties in assessing below-ground processes. Some studies, however, showed a close relationship between below-ground root and above-ground leaf development, suggesting a possibility that above-ground attributes could serve as surrogates for the root processes. In this study, we investigated the relationship between below-ground and above-ground development of rice. Field experiments were conducted where we cultivated Koshihikari (a leading cultivar in Japan) for four different cropping schedules in 2012. In 2016, Gimbozu (HEG4) and three flowering time mutant lines of Gimbozu (X61 (se13), HS276 (ef7), DMG9 (se13, ef7)) were examined for a single season. Experiments were performed with three replications in a completely randomized design. We monitored ammonium-N concentration ([NH4+-N]) in soil solution by repeatedly taking samples from a porous tubing (10-cm long) vertically inserted at the most distant point from surrounding rice hills. Samples were taken in triplicate (= triplicate tubes) and every three days from transplanting in each experimental unit. For above-ground attributes, leaf area index (LAI) was measured in 2012, whereas soil coverage ratio was estimated by image processing in 2016. Results showed that [NH4+-N] increased gradually after transplanting and then rapidly decreased from a certain day. This distinct drop in [NH4+-N] informed us the timing at which the rice root system reached the point of porous tubing and thus essentially covered the whole soil volume. The LAI at the dropping point was about 0.43 regardless of the cropping schedules in 2012 experiment. In 2016, the coverage ratio at the N dropping point was within the range of 0.12 to 0.19 for four genotypes having different growth durations. In addition, the coverage ratios at seven weeks after the transplanting showed a good correspondence to LAI across the four genotypes. We therefore conclude that both LAI and coverage ratio may serve as robust indicators for root development and might be useful to estimate the timing when the root system fully cover the soil volume. Results obtained here will also contribute to develop models that can predict not only above-ground canopy development but also associated below-ground processes.

• The Journal of Industrial Distribution & Business
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• v.9 no.11
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• pp.55-66
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• 2018

Purpose - Present research aimed at identifying the effects of ambient pride type on judgement difference between existing preference and final preference formed after being exposed to the preference inconsistent information from others representing a conflict between consumer's own perspective and the others' perspective. And this study also explored the roles of empathic concerns and motive type in the ambient pride type's effects on the judgement difference. Research design, data, and methodology - 2(information type: consistent versus inconsistent) × 2(pride type: hubristic versus authentic) between-subjects design was employed. Data for empirical analysis were from 252 undergraduate students who participated in questionnaire survey. To verify hypotheses, Anova and regression analysis were used. Results - First, there was the judgement difference among the experimental groups. The difference was greater at the authentic pride group than at the hubristic pride group. And the difference was greater at the inconsistent information group than at the consistent information group. The interaction effect of pride type and information type was significant. Second, when consumers who had made their preference were exposed to the inconsistent information from other, those of the hubristic pride group showed more defense motive and less empathic concerns than those of the authentic pride group. And there were the mediation roles of the empathic concerns and the interaction roles of the motive type in the effects of pride type on the judgement difference. Third, the self validity did not affect the difference even that become increased by defense motive rather than accuracy motive. Conclusions - This research could advance the information processing theory related to pride type by exploring the effects of the pride type on judgement difference between existing preference and final preference formed by the inconsistent information from others, and by identifying the mediation roles of the empathic concerns and the interaction roles of the motive type in the effects of the pride type. In view of the results from current study, marketers should make efforts of inducing defense motive and developing and communicating the consistent information to persuade consumers under hubristic pride who have the belief that attributes of their brand are better than those of the competitors' brand, and they also should conduct marketing acts by using the inconsistent information to persuade consumers under authentic pride who have the belief that attributes of the competitors' brand are better than those of their brand.

• Korean journal of communication and information
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• v.44
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• pp.223-247
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• 2008

The purpose of this study is to explore the anti-smoking message effects and smoking status on smoking belief attributes. Based on the health behavior theories such as theory of reasoned action, health belief model, and social cognitive theory, three factors are selected to investigate the effects of anti-smoking campaign messages. The balance of benefits and barriers, self-efficacy, and social pressure are selected as independent variables. Three two-way ANOVA were conducted. Results showed that the main effect of social pressure were found with the social smoking attributes. Interaction effects were found on the nonsmoker-social pressure group and the non-smoker-two sided message group. It is found that nonsmokers accepted these two anti-smoking messages easily as compared to smoker groups. No main smoking status was found in this study; it is believed that smoking is a habitual that is not changed easily because attitude formation takes time. Results revealed that the two-sided message video releases and the social pressure video releases were favored by both smokers and nonsmokers. This study contributes the theoretical framework that can be transferred to the practices of anti-smoking campaign. Also, the researcher produced the televised stimuli which is not common in health message studies. By using the televised message material, the research tried to solve the validity problem which is common in experimental design.

• Korean Journal of Plant Resources
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• v.37 no.4
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• pp.401-410
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• 2024

This study was undertaken to elucidate the effects of virus and viroid infections on the growth of trees and the attributes of fruit quality in 'Hongro' apples. Trials were initiated using virus-infected, viroid-infected, combined virus/viroid-infected, and uninfected apple trees in an experimental apple orchard at the National Institute of Horticultural and Herbal Science in 2019. The growth of each tree was measured annually and compared between virus-free and virus/viroid-infected trees. Fruits were harvested from all apple trees, and selected attributes of fruit quality, including yield, weight, firmness, titratable acidity, and anthocyanin content, were determined in September 2021-2022. The results revealed significant differences among virus-free trees and those infected with either virus, viroid, or a combination of virus and viroid. Infection with viral and viroid diseases led to reductions in tree height (14.0%), trunk area (23.1%), fruit yield (65.0%), fruit weight (34.4%), and anthocyanin content (39.8%), while increasing fruit firmness (33.2%) and titratable acidity (39.8%), respectively. We anticipate that our research findings will also be beneficial for apple virus and viroid disease control, as well as apple cultivation management.