• The Journal of the Korea Contents Association
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• v.21 no.12
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• pp.84-94
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• 2021

Graph databases have been developed to efficiently store and query graph data composed of vertices and edges to express relationships between objects. Since the query types of graph database show very different characteristics from traditional NoSQL databases, benchmarking tools suitable for graph databases to verify the performance of the graph database are needed. In this paper, we propose an efficient graph database benchmarking system that supports diversity in graph inputs and queries. The proposed system utilizes OrientDB to conduct benchmarking for graph databases. In order to support the diversity of input graphs and query graphs, we use LDBC that is an existing graph data generation tool. We demonstrate the feasibility and effectiveness of the proposed scheme through analysis of benchmarking results. As a result of performance evaluation, it has been shown that the proposed system can generate customizable synthetic graph data, and benchmarking can be performed based on the generated graph data.

• Journal of Digital Convergence
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• v.21 no.1
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• pp.19-27
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• 2023

This is an implementation study towards the development of a strategy to improve the pneumonia adequacy evaluation index of regional public hospital and to confirm its effectiveness. One physician, eight nurses, one computer room staff, and one nursing professor working at a regional base public hospital located in N city participated in this study from March to October 2021. An implementation study was conducted based on the conceptual model of Zuber-Skerritt & Fletcher. The stages of planning, implementation, evaluation, and reflection were operated in two cycles, and the effectiveness was evaluated in the second and third quarters. Compared to the pneumonia adequacy evaluation index in 2019, all indicators reached 100% of the standard target in 2021. The results of this study therefore infer that to provide higher quality medical services in the future, it is necessary to apply medical quality improvement activities through practical research under multidisciplinary participation and cooperation and to review the applicability of clinical sites.

• Proceedings of the Korean Information Science Society Conference
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• 2005.07a
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• pp.91-93
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• 2005

교육에서 평가가 매우 중요하기 때문에, 인터넷과 정보통신 기술의 발달로 웹을 기반으로 하는 평가에 대한 연구들이 활발히 이루어지고 있으며, 또한 현재의 교육평가에서 강조되고 있는 수행평가를 지원하는 시스템 개발에 대한 연구들이 많이 이루어지고 있지만 이러한 연구들에서 제시하는 평가 시스템이나 수행평가 시스템은 학생들이 대부분의 시간을 보내는 현재의 교실에서 수업 시간에 사용하기는 힘들다. 따라서 본 연구에서는 현재의 교실에서 바로 사용이 가능하며, 수업 시간 중에 언제든지 수시로 사용할 수 있는 무선 수행평가 시스템을 설계하고 구현하였다. 본 연구의 시스템은 수업 과정에서 수시 평가를 통해 목표 달성을 위한 방법을 즉시 수정, 보완할 수 있도록 도울 것이며, 교사의 수행평가 업무를 수월하게 만들 것이고, 학습의 질을 향상시켜 공교육의 신뢰성을 증진시키는데 기여하게 될 것이다. 더 나아가 다양한 수업 활동에도 적용 가능하고, 교사와 학생, 학생과 학생들 간의 실시간 커뮤니티 도구로도 활용될 수 있을 것이다.

• Journal of Digital Convergence
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• v.17 no.6
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• pp.439-446
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• 2019

Poststroke depression can have a secondary effect on social cognition, and this can lead to behavioral problems. The purpose of this study was to verify the effects of a Cognitive Stimulation Circulative Program(CSCP) based on occupational therapy. The participants of this study were 12 stroke patients. The CSCP was organized in such a way to promote the cognitive process. This program were carried out as a circuit program(16 sessions). As a result of this study, the depression scale of the subjects had statistically significant benefit(p<.05). Also, the evaluation results verified partial improvement in quality of life, and the relationship change scale which was used to evaluate role of physical and social cognitive function ability had statistically significant benefit(p<.05). The above results of this study verified that the CSCP was an efficient intervention program that reduces the depression of stroke patients and improve their social cognitive function ability, thus enhancing the quality of life.

• The Mathematical Education
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• v.61 no.1
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• pp.179-198
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• 2022

Teaching is delicate, complicated, and demanding work, and especially beginning teachers set forth their difficulties in preparing and implementing mathematics instruction. It is important to ensure the quality of beginning mathematics teachers' instruction above a consistent level because such affirmation justifies the national policy on teacher education as well as the individual efforts of preservice teachers in South Korea. The current study collected mathematics lessons of the two beginning teachers who graduated from the same teacher training institute and worked at the same high school. The findings reported what features their lessons have with regard to the learning environment, engaging students in learning, deepening student learning, and using representations of the edTPA in order to identify what can or cannot be expected in their mathematics instruction. The instruction of the one teacher was assessed middle or more than middle scores throughout the rubrics, but the other one had lower scores. Based on these findings, this study suggested the implications for teacher education in ways of improving the quality of instruction of beginning mathematics teachers.

• Phonetics and Speech Sciences
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• v.12 no.2
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• pp.51-61
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• 2020

The purpose of this study is to compare voice characteristics and voice-related quality of life (K-VRQOL) of the elderly female choir members using perceptual-auditory voice quality evaluation (GRBAS) and K-VRQOL scales. The participants were 77 women over 60 years old who were actively engaged in the choir in either Seoul or Busan. There are two kinds of choirs that indicate different engagement levels: regular choir and church choir. The perceptual-auditory vocal quality evaluation was listened to by / a / vowels and were graded by experts using the GRBAS scale. As a result, when comparing the differences between groups, the elderly female participants of the regular choir showed higher satisfaction in speech using the subjective speech recognition level than the elderly female members who performed in the church choir. In addition, the analysis showed that the satisfaction level was high in the physical function area of the K-VRQOL scale. This study confirmed that choral activities could yield positive results not only in terms of improving voice function in old age, but also to improve the subjective perception level of voice use, thus suggesting the necessity of systematic music programs to improve voices that are aging.

• The Journal of the Korea Contents Association
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• v.22 no.8
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• pp.660-670
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• 2022

This study was analyzed by applying AMSTAR-2, a methodological quality evaluation tool, to evaluate the quality of domestic meta-analysis papers on rehabilitation interventions for stroke patients. The purpose of this study is to provide guidelines for qualitative improvement of evidence-based practice and meta-analysis research by analyzing the qualitative level of the analyzed research. The literature search was conducted using the Research Information Sharing Service, Korean Medical database, and Korean studies Information Service System. Two authors searched, extracted, and reviewed literature using the keywords 'stroke' and 'meta-analysis'. As a result of the AMSTAR-2 quality evaluation of the final 18 studies, 3 studies (16.67%) were 'Moderate', 8 studies (44.44%) were 'Low', and 7 studies (38.89%) were 'Critically Low'. In future research, scientific and objective data selection and extraction process should be performed. It is expected that interest and efforts to improve the quality of meta-analysis research will continue by referring to the contents analyzed in this study as a way to improve the quality of literature.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.6
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• pp.187-196
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• 2017

In using lecture evaluation methods to improve the quality of education, most universities need to reflect the changes in the educational environment. The transformation of university education into a mixed learning environment blending face-to-face education and online education necessitates the development of appropriate lecture evaluation items. For this purpose, we analyzed the items and the factor analysis for the students of C university in Daejeon. The primary data were carried out with 47 measurement items in 10 domains, such as planning and preparation of lectures, which were found through previous research analysis. Secondary data were validated by using the items confirmed through analysis of preliminary test data. The study results showed that 20 items including six domains such as planning and preparation of lectures, learning materials, learning tasks, instruction media, online course test and grades were derived. These study results suggest that universities lectures should be evaluated to ensure improvement.

• Proceedings of the Korea Contents Association Conference
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• 2011.05a
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• pp.395-396
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• 2011

과체중, 비만을 포함한 만성질환은 일회성의 치료행위보다는 지속적인 관리가 필요한 질환이다. 이러한 점을 고려하여 개발된 IT서비스와 Healthcare서비스의 융합형 체중관리 모바일 어플리케이션 사용이 늘고 있는 추세다. 그러나 대부분의 체중관리 어플리케이션에서는 식단정보와 운동 칼로리 소모량에 관한 정보를 일방적으로 제공하고 있을 뿐, 사용자 건강의 질적인 부분을 고려하지는 못하고 있다. 따라서 본 연구에서는 어플리케이션 사용자들에게 지속적으로 동기를 부여하는 방안들을 모색하고 사용자 건강의 질도 관리 할 수 있도록 고려하여 모바일 체중관리 어플리케이션을 개발하였다. 이를 위하여 사용자 건강의 위험도를 Framingham risk score를 이용하여 지속적으로 점검하고 관리할 수 있도록 하였다. 또한 건강과 관련 된 삶의 질(HRQOL) 측정도구를 포함하여 사용자가 건강상태를 지속적으로 평가, 관리할 수 있도록 개발하였다. 본 연구를 통해 개발된 체중관리 어플리케이션은 사용자는 식이, 칼로리 뿐 만이 아니라 개인의 건강의 질에 관한 관리를 지원하고, 나아가 일회성이 아닌 지속적인 건강관리 서비스를 제공할 것으로 기대한다.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• v.17 no.1
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• pp.3-9
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• 2006

Objectives: Obesity is one of risk factors for psychological and social adjustment problems (depression, low self esteem, low school function etc). Quality of life(QOL) is comprehensive and multidimensional construct including physical, emotional, social and school functioning. Some authors reported that child and adolescent obesity is associated with impaired QOL. This study was to examine the association between QOL and body mass index (BMI) in middle school students. Methods : Cross sectional analysis of 471 adolescents between the ages of 13 and 14 years ($mean{\pm}SD,\;13.4{\pm}0.6$), who attended one of middle schools in Seoul, Korea. Participants' QOL were scored by using Korean version of pediatric QOL inventory generic score scale ($PedsQL^{TM}$ 4.0). Participants had a $mean{\pm}SD\;BMI\;of\;21.3{\pm}4.0$. Self reports and parent proxy reports using $PedsQL^{TM}$ 4.0 were administered to measure participant's QOL. Participants were divided into four groups by BMI (Male: obesity group >26.5, at risk group 23.2-26.5, normal weight group 15.8-23.1, underweight group <15.8, Female : obesity group >25.2, at risk group 22.9-25.2, normal weight group 16.0-22.8, underweight group <16.0). Results : Compared with other groups, obese adolescents reported significantly(p<0.01) love. QOL in all domains. Obese adolescents were more likely to have impaired QOL than normal weight adolescents (Odds Ratio, 8.3, 95% confidence interval, 4.0-16.7). Conclusion : Obese adolescents have lower QOL than normal weight adolescents. Psychiatrist, parents, and teachers need to be informed of the risk fur impaired QOL in obese adolescents to target interventions that could enhance health outcomes.