• Journal of Yeungnam Medical Science
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• v.9 no.1
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• pp.68-74
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• 1992

To evaluate the simplicity and efficacy of the 7-symptom screen test for somatization disorder, the authors tried 7-symptom screen test to find out the easiness in diagnosing the somatization disorder and to evaluate the simplicity and efficacy of it from Mar 1991 to Feb 1992. The objects were 135 female outpatients who visited Department of Psychiatry, College of Medicine, Yeungnam University. The results were as follows : The discriminant index was over 3.0 for all 7 symptoms and two item accuracy was 89%(sensivity 99%, specificity 77%), three item accuracy was 87%(sensitivity 83%, specificity 90%). In discriminant analysis, the cut off score for the criteria of somatization disorder was 87% when three or more symptoms were checked for 7-symptoms. This result means that 7-symptom screen test is the simple and accurate method for screening and diagnosing the somatization disorder.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.13 no.3
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• pp.1161-1169
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• 2012

This study was investigate the usefulness of the DSI according to gender. The present study evaluated DSI in Korean population and Thirty voluntary participants (15 males, 15 females) who had G0 on the Grade, Roughness, Breathiness, Asthenics, Strain(GRBAS) and lived in Kyunggi-Do or Seoul, from March 2011 to June 2011. Maximum phonation time, the Highest fundamental frequency, the Lowest intensity, and Jitter(%) were measured using CSL 4500(Kay Pentax. USA). The experimenter explained the subjects the experimental condition and procedures and demonstrated the procedures, prior to the experiment. The result of in this study showed that the difference between males and females were not significants, although the Fhi was higher for females than for males. Therefore, We conclude that the DSI is a useful instrument to objectively measure the severity of dysphonia.

• Journal of Korea Multimedia Society
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• v.15 no.11
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• pp.1349-1357
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• 2012

In recent years, security accidents which are becoming the socially hot issue not only cause financial damages but also raise outflow of private information. Most of the accidents have been immediately caused by the software weakness. Moreover, it is difficult for software today to assure reliability because they exchange data across the internet. In order to solve the software weakness, developing the secure software is the most effective way than to strengthen the security system for external environments. Therefore, suggests that the coding guide has emerged as a major security issue to eliminate vulnerabilities in the coding stage for the prevention of security accidents. Developers or administrators effectively in order to use secure coding coding secure full set of security weaknesses organized structurally and must be managed. And the constant need to update new information, but the existing Secure Coding and Security weakness is organized structurally do not. In this paper, we will define and introduce the structured weakness for mobile applications by the surveys of existing secure coding and coding rules for code analysis tools in Java.

• Journal of Korean Library and Information Science Society
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• v.40 no.2
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• pp.355-373
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• 2009

School library concentrates its focus on how information literacy is implemented through the collaborative efforts of classroom teachers and teacher librarian. The role of teacher librarian and the competencies they need in order to succeed have changed over many years. However, current LIS education for teacher librarian has limitations in terms of institution, curriculum. In this research, I designed and implemented an Internet-based educational contents development and evaluation for teacher librarian's competency. This system was development by lecture authoring tool(LectureMAKER v2.0). This study tested the effectiveness of the system was verified by survey by 51 college students. The test paper consisted of 20 items(5 scale) for measuring teaching competencies of college students. This study verified effectiveness of the Internet-Based Educational Contents by two dependent samples t-test, Levene test.

• Journal of the Korea Convergence Society
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• v.11 no.1
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• pp.97-108
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• 2020

Nowadays, '1+N' is the operation model of compound bookstores. This study firstly investigated the general information and needs of customers and analyzed 4 basic behaviors of customers in 10 functional space of bookstore. Secondly, a preliminary analysis framework of interior design of compound bookstore was established, by applying 3 research tools of service design to 3 design elements of interior design. Thirdly, the case was analyzed in the preliminary analysis framework to find out the detailed process of the interaction between the customer and the bookstore, the touchpoint and the interior design project, to find out the blind spots in design, and put forward the solutions. Finally, after being refined, a compound bookstore interior design model based on the concept of service design was established. This model can be used to test the design content and service quality of the interior functional area of the compound bookstore, and to find out the design blank points.

• School Mathematics
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• v.10 no.2
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• pp.139-154
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• 2008

The primary purpose of this study was to investigate how sixth grade elementary school students react to the types of letters use, what levels of understanding letters students are in and what difficulties are in understanding letters, and to raise issues about instructional methods of algebra. A descriptive study through pencil-and- paper tests was conducted. The test instruments consisted of 18 questions with 6 types of letters use. According to the results of testing, students' types of letter use and the levels of understanding letters were classified. The conclusions from the results of this study were as follows: First, the higher the types of letters use, the more sixth grade elementary school students had low scores on the types. Therefore, teaching methodologies of letters and expressions in the classroom need to encourage for students to improve their ability of using and understanding letter. Second, approximately 40% of students were categorized in level 3. Accordingly it is necessary to have a program of teaching and learning to improve their understanding levels of letters. Third, approximately 15% of students were categorized in level 0. In order to develop understanding of letters, it is important that students use letter evaluated and letter used as an object. Fourth, students had the difficulties in understanding letters. It is informative for teachers to understand these students' difficulties and thinking processes. Finally, we must treat the different uses of letters and introduce them successively according to the student's understanding levels of letters.

• Journal of Educational Research in Mathematics
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• v.21 no.3
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• pp.239-259
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• 2011

This study investigated the elementary school students' ability on the algebraic reasoning as generalized arithmetic. It analyzed the written responses from 648 second graders, 688 fourth graders, and 751 sixth graders using tests probing their understanding of the properties of whole number operations. The result of this study showed that many students did not recognize the properties of operations in the problem situations, and had difficulties in applying such properties to solve the problems. Even lower graders were quite successful in using the commutative law both in addition and subtraction. However they had difficulties in using the associative and the distributive law. These difficulties remained even for upper graders. As for the associative and the distributive law, students had more difficulties in solving the problems dealing with specific numbers than those of arbitrary numbers. Given these results, this paper includes issues and implications on how to foster early algebraic reasoning ability in the elementary school.

• Journal of Gifted/Talented Education
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• v.26 no.1
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• pp.37-51
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• 2016

This study examined the friendship expectation that science-gifted and non-gifted elementary students perceived in gifted class and regular class. In 233 science-gifted elementary students and 329 non-gifted elementary students, we measured the friendship expectation that sub-domains were intimacy, ability similarity, and morality. The results of this study were as follows: First, according to the results of comparing the friendship expectations of science-gifted and non-gifted students at the regular class, there was statistically significant intergroup difference in the sub-domains of intimacy and morality, but there was no significant difference in the sub-domain of ability similarity. Second, according to the results of comparing the friendship expectations of science-gifted at the gifted class and at the regular class, there was statistically significant difference in the sub-domain of intimacy, but there was no significant difference in the sub-domains of morality and ability similarity. Based the results, the implications to understand the friendship of the science gifted elementary students were suggested in depth.

• Journal of Gifted/Talented Education
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• v.20 no.2
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• pp.571-594
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• 2010

Learning styles affect how students access and handle their task, so it is very important to understand how they study, when planning teaching-learning process, to enhance their potential to the maximum. In addition, in order to improve the quality of gifted education, there is a need to examine the curriculum and teaching-learning process which reflect learner characteristics. In this study, gifted student's preferred learning styles are investigated using questionnaires and learning style inventory. Also by analyzing the characteristics of the learners, it is hoped to get parents and teachers to understand the gifted who have various talents, and to support teaching programs for the gifted in order to develop their potential. This study shows that there are differences in the studying style between the gifted child and the average child. Namely, learner's physical and psychological environment can affect learning styles. Also there is a difference between the studying style which the gifted students prefer and the teaching style which teachers use most frequently. Programs for the gifted should be planned through better understanding of the characteristics of the learners.

• School Mathematics
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• v.18 no.3
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• pp.647-666
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• 2016

This study investigates pre-service teacher's understanding of the concept and representations of irrational numbers. We classified the representations of irrational numbers into six categories; non-fraction, decimal, symbolic, geometric, point on a number line, approximation representation. The results of this study are as follows. First, pre-service teachers couldn't relate non-fractional definition and incommensurability of irrational numbers. Secondly, we observed the centralization tendency on symbolic representation and the little attention to other representations. Thirdly, pre-service teachers had more difficulty moving between symbolic representation and point on a number line representation of ${\pi}$ than that of $\sqrt{5}$ We suggested the concept of irrational numbers should be learned in relation to various representations of irrational numbers.