• The Journal of the Convergence on Culture Technology
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• v.10 no.2
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• pp.237-244
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• 2024

We studied the effects on their academic achievement of chemistry II and advanced chemistry subjects of science high school students according to the type of class (face-to-face and non-face-to-face). The subjects of this study were 195 first-year students of G Science High School located in Gyeongnam. The average scores of Chemistry II and Advanced Chemistry in non-face-to-face classes in 2020 and face-to-face classes in 2021 were compared and analyzed. As a result of comparing and analyzing the academic achievement according to the class type, students' grades in Chemistry II and Advanced Chemistry were higher in non-face-to-face classes. In the comparison of academic achievement by level according to class type, Chemistry II showed higher average grades in non-face-to-face classes as the lower level were, and in advanced chemistry, the higher the upper grades in non-face-to-face classes. In addition, in terms of the effect of changes in class form on the upper and lower 10% levels of academic achievement of Chemistry II, the upper 10% showed high grades in face-to-face classes and the lower 10% in non-face-to-face classes. On the other hand, in advanced chemistry, the average grade of non-face-to-face classes was higher than that of face-to-face classes in the top 10%, and the average grade of face-to-face classes was higher than that of non-face-to-face classes in the bottom 10%. Through these results, it was found that in the teaching-learning of science high school students, instructors need to design and treat teaching-learning appropriate to the level of academic achievement.

• Journal of Korea Society of Industrial Information Systems
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• v.27 no.3
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• pp.109-126
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• 2022

Due to the nature of small businesses, different corporate performance was found according to the leadership and marketing capabilities of managers. In particular, the presence or absence of corporate performance was confirmed through the manager's perception of the usability of non-face-to-face services. As a result of conducting a survey of executives of small businesses, it was found that the open leadership and marketing capabilities of small business managers had an effect on corporate performance and also had an effect on the convenience of non-face-to-face service use.

• The Journal of the Korea Contents Association
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• v.16 no.2
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• pp.666-672
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• 2016

We extracted 50 LVH patients out of 30'~80's who performing ECG and echocardiography examination. We used Devereux's theory to examinate LVH with echocardiography and used Sokolow-Lyon's theory to examinate LVH with ECG. We used regression and correlation analysis by SPSS, used ROC curve analysis to decide predominance of two ways of .Age, BMI, SBP and DBP whice are the danger factors of LVH and standard value of LVH diagnosis examination seems correlated. Out of 50 LVH patients, 50 patients were diagnosed LVH by echcardiography examination and only 21 patients were diagnosed LVH by ECG examination. Also echocardiography was AUC 99%, sensitivity 96%, singularity 95%, accuracy 95.5%. And ECG was AUC 76%, sensitivity 62%, singularity 76%, accuracy 68%.By comparing accuracy between echocardiography and ECG in diagnosing LVH, we could tell echocardiography was examination with higher accuracy. Therefore, if one was diagnosed with summit on 1st examination with ECG, considering age, body mass index, systolic blood pressure and dilator blood pressure, should offer echocardiography examination.

• Journal of the Korean School Mathematics Society
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• v.24 no.4
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• pp.349-367
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• 2021

In this study, 85 studies on probability education from 2000 to 2020 were analyzed by publishing year, journals, research subjects, and research topics. Especially, fundamental probabilistic ideas presented by Batanero et al.(2016) were applied to examine which topics were dominant in domestic probability education research. As a result, it was found that there has been a few research in probability education in Korea during the past 20 years, and the number of human subject studies was slightly more than the number of non-human subject studies. In addition, the analysis of research topics according to the fundamental probabilistic ideas showed that two topics, conditional probability and independence and combinatorial enumeration and counting, were dominant in domestic probability education research. However, while both conditional probability and independence and combinatorial enumeration and counting are introduced to young children using intuitive manners in international probability education research, subjects related to these topics were primarily high school students and pre and in-service teachers. Based on the results of this study, the implications for the goal and the direction of future probability education research were discussed.

• Journal of the Society of Disaster Information
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• v.17 no.4
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• pp.722-732
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• 2021

Purpose: Due to the coronavirus infection-19 (COVID) pendemics, all educational institutions were required to provide full non-face-to-face real-time education, and fire officials were required to provide fire-fighting education by applying non-face-to-face education. In this difficult situation, the National Fire Service Academy tries to find the direction of the non-face-to-face real-time education and suggest ways to improve it through a survey of the status of non-face-to-face real-time education conducted by the NFSA to fire officials. Method: A survey was conducted on fire officials under the theme of "Consciousness Survey for Improving the Quality and Specialization of Non-face-to-face Real-Time Remote Education" and an in-depth analysis was conducted based on the results. Result & Conclusion: First, professors or educational operators shall actively utilize remote education programs suitable for educational characteristics by utilizing various programs. Second, a dedicated notebook for non-face-to-face training should be provided to provide an educational environment where all learners can participate in the training without difficulty. Third, in the case of education and training that requires the use of equipment due to the nature of fire officials' education and training, it is necessary to consider it as a non-face-to-face training place by arranging educational equipment at each fire station. Fourth, it is hard to expect a satisfactory educational effect to cope with practical education with theoretical education. Therefore, facilities and programs that enable non-face-to-face real-time hands-on training should be developed. It is worth considering the proper combination of face-to-face education while maintaining the social distance as much as possible until such non-face-to-face training is possible. Fifth, non-face-to-face education is considered to have high eye fatigue due to the light and electromagnetic waves of the computer screen, and as time goes by, the concentration level decreases. Therefore, it is necessary to form an education time to reduce the eye fatigue of learners and increase concentration through proper class and rest time. Finally, professors should operate a learner participation-oriented education that allows professors and learners to interact rather than one-sided knowledge transfer education. In addition, technical problems of non-face-to-face remote education should be thoroughly prepared through preliminary system checks to ensure that education is not disrupted.

• Korean Institute of Interior Design Journal
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• no.29
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• pp.35-42
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• 2001

As a part of Avant-Garde movement centered in Russia before and after the Revolution in 1917, Russian Constructivism was born as most experimental and avant-garde modernity artistic movement. Russian Constructivism played a significant part in relative to Avant-Garde in the beginning of twentieth century and has contributed to a series of artistic movement, it deserves a status befitting its contribution to modem abstract art. Noticing the fact that Constructivist approaches are being attempted in modern architecture with the new rise of Constructivist design theory and increased interest in Constructivism, this thesis explores the design elements characterizing Constructivism in art and architecture To be specific, it suggests the relation of Plastic paradigm in formalistic, elemental and technical aspects and categories into Plastic characteristics. Thereby, the thesis aims to categorize the elements in terms of contradicting two trends of pure plastic and scientific expressions, and to analyze comparatively the related Plastic trends represented in modern space design. The thesis recolonizes that attempts to break out from stereotypes of Constructivism to reinvent itself constantly have contributed to an unconventional forms and new aesthetic standards and have a great impact on idealistic forms in many genres.

• Journal of Digital Policy
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• v.1 no.2
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• pp.89-98
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• 2022

The study is a descriptive correlational study, aimed to identify the effect of non-face-to-face class satisfaction on major commitment of nursing students after COVID-19. The subjects are 123 3^rd and 4^th grade nursing students at three universities located in S city and G province, data were collected using the Google Online Questionnaire from March 9^th to April 9^th, 2022. The collected data were analyzed using SPSS/WIN 28.0 program. As a result of the analysis, the factors that affect major commitment are the upper grade (β=.290, p=.013), the middle grade (β=.272, p=.022), and the contents of non-face-to-face class satisfaction (β=.308, p=.008) accounting for 16.5%. Therefore, developmental strategies and educational programs to organize the contents of non-face-to-face classes are required to be enhanced in order to improve nursing students' class satisfaction and major commitment.

• The Journal of the Acoustical Society of Korea
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• v.27 no.7
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• pp.365-371
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• 2008

In this study, beat control method using an equivalent ring model is proposed to control beat period of a slightly asymmetric ring. Slight asymmetry in a ring generates mode pair and the interaction of the mode pair makes beat in vibration and sound. In a ring, as a simplified bell type structure, mode data are measured and an equivalent ring is determined so that the measured mode condition is satisfied. By the finite element analysis on the equivalent ring, changes of mode pair condition are predicted when local mass is attached or the local thickness is decreased. The predicted results are compared with the experimental result and the validity of the proposed method is verified.

• Journal of Educational Research in Mathematics
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• v.27 no.2
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• pp.269-289
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• 2017

Statistics education research is an important basis for improving the practice of statistical education by describing, predicting, and explaining the phenomena of statistical education. In this study, the research trends in Korea were analyzed through the statistical education research papers published in major Korean mathematics education journals on the 21st century. 99 papers published in these journals from 2000 to 2016 were categorized by journals, research subjects, research methods, and, topics. As a result, it was shown that there are not many statistics education researchers, so domestic researches are dependent on some researchers. In addition, the numbers of studies of human subjects and human non-subject researches were similar. There were few studies of university students, and the studies of teachers' subjects was gradually increasing since 2010. In the case of research methods, the numbers of experimental and non-experimental studies seem to be similar, but this is a result of the increase in qualitative research and mixed research since 2010. Last, many studies about domestic statistics education are on teaching and learning, and the studies on reasoning and understanding have been increasing. In this study, we see the research trends of domestic statistics education and provide implications for the future researches and development directions of statistical education research.

• Journal of Digital Convergence
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• v.20 no.2
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• pp.455-462
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• 2022

This study was conducted to find ways to utilize human-centered IT in caring for elderly people who live alone. Through focus group interviews with experts, this study investigated the problems with delivery system, and ethical issues. Problems such as lack of trust, supplier-centered care, and uniform service provision were derived as major problems in the delivery system. These findings indicate that IT should be used as an auxiliary means of face-to-face services and to be controllable and convenient. Issues such as "guaranteeing the right to self-determination," "protecting privacy," "sufficiently guaranteeing the right to know," and "encompassing blind spots" were raised as important ethical issues related to human-centered IT utilization. Based on the research results, this study presented the necessity of designing user-centered information technology and the necessity of developing ethical indicators for the use of human-centered technology.