• Journal of the Korea Convergence Society
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• v.12 no.12
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• pp.583-594
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• 2021

This study is a descriptive research study conducted to understand the effects of hospital nurses' COVID-19 risk perception, media dependence, government trust, resilience, and Socio-psychological stress on COVID-19 prevention behavior. Data were collected from 200 nurses at university hospitals, and the collected data were analyzed using descriptive statistics, t-test, Pearson's correlation analysis, ANOVA, and multiple regression analysis using the SPSS 24.0 program. The average age of the subjects was 29.8 years old, the hospital experience was 6.6 years, and the prevention of COVID-19 was high with 4.3 points. COVID-19 prevention behavior showed positive correlation with COVID-19 risk perception, resilience, and media dependence and negative correlation with socio-psychological stress. Factors influencing COVID-19 prevention behavior were COVID-19 risk perception, resilience, socio-psychological stress, and media dependence. To ensure that hospital nurses' COVID-19 prevention behaviors can be continued, it is necessary to appropriately manage COVID-19 risk perception and media dependence, and to develop and apply an intervention program to strengthen resilience and reduce socio-psychological stress.

• Journal of The Korean Association For Science Education
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• v.41 no.1
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• pp.47-57
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• 2021

This study aims to explore the epistemic goals that pre-service elementary teachers can construct in their biology-related knowledge construction activities, how these goals are constructed, and how the shaping of the knowledge construction activities around the goals was afforded or constrained. The research participants were 26 pre-service teachers, divided into 11 groups of two or three to engage in the activity. Their discussions and products were collected and used as data for this study. The analysis revealed that the teachers constructed three types of epistemic goals: making sense of natural phenomena, proposing the most effective course of action, and proposing solutions to problems based on their causes. Construction of different types of goals depended on the conclusions the pre-service teachers expected to draw based on the explored natural phenomena. It was found that the elicitation of the pre-service teachers' epistemic goals could facilitate their shaping of the knowledge construction activity as an evidence-based justification. The participants planned the construction of mechanistic explanations of natural phenomena with the epistemic goals of 'making sense of natural phenomena' or 'proposing solutions to problems based on their causes.' However, enacting their knowledge construction plans with sophisticated epistemic features was constrained due to the limited resources available. This study can contribute to developing instructional strategies that facilitate learners' epistemic agency and addressing epistemic agency in the development of pre-service teacher education methods.

• The Journal of the Convergence on Culture Technology
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• v.7 no.4
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• pp.471-478
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• 2021

The purpose of this study were to investigate knowledge, awareness, performance, and preventive behavior of latent tuberculosis infection management, and to identify influencing factors on preventive behavior of latent tuberculosis infection management of nursing students. The subjects of this study were completed by 191 nursing students from 2 colleges in D City. Data were collected from August 1 to November 30, 2020. Data were analyzed using the t-test, the ANOVA, the Pearson correlation coefficient, and stepwise multiple regression analysis by SPSS ver. 21.0. There were significant positive correlations between preventive behavior of latent tuberculosis infection management and performance(r=.21, p=.003), awareness and performance(r=.88, p<.001). The factors influencing grade and education experience about latent tuberculosis infection management of the study subjects were grade(β=.29, p<.001), final time of education experience about tuberculosis(β=.19, p=.004), and the explanatory power of these variables was 11.9%. The development of preventive behavior of latent tuberculosis infection management education program that focuses grade and final time of education experience about tuberculosis is needed.

• Proceedings of the Korea Multimedia Society Conference
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• 2000.11a
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• pp.455-458
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• 2000

인공 신경망은 체계적인 알고리즘으로 풀기 어려운 문제들을 해결하는데 사용되어오고 있다. 이는 인간의 뇌세포가 외부자극에 대해 반응하는 과정을 컴퓨터 시스템 상에서 구현한 것으로 새 인간과 컴퓨터의 상호작용을 연구하는데 흥미로운 접근방식이다. 본 논문에서는 신경망의 접근방법을 이용하여 인간행위 인식시스템을 구현하였다. 신경망을 이용해 구현된 컴퓨터 인식 시스템이 인간의 두 가지 정서 하에서 일어난 세가지 서로 다른 행동을 보고 행위자의 성별이나 강정상태를 얼마나 인식해낼 수 있는지 실험해 보았다. 특히, 성별 인식 실험에서는 신호탐지 이론에서 사용하는 인장도(discriminability)를 이용해 사람에 대한 이 시스템의 효율도를 계산하였다

• Journal of The Korean Association For Science Education
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• v.39 no.4
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• pp.511-523
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• 2019

In this age of the $4^{th}$ industrial revolution, we, science educators, are giving more light on students' agentic behavior in the process of educating future scientist. This study, with the analytic lens of epistemic agency, explores the key stages of a student-driven R&E program rather than the scientist-led R&E program. It also examines to understand the emergence of students' epistemic agency in each stage of R&E. Data from participant observation for 18 months and in-depth interviews were collected and analyzed with the constant comparative method of grounded theory. This study identifies and describes five key stages of student-driven R&E: The stage of exploring research theme, designing research, performing lab activity, interpreting results, and communicating research. It also finds that (a) students' epistemic agency emerged with the constant interactions with the R&E structure; (b) students' epistemic agency has deep relations with the epistemic beliefs of the students; (c) students positioned themselves as decision-makers in the R&E practice; (d) the redistributed power and authority of the R&E contributed to the emergence of students' epistemic agency.

• Journal of Digital Contents Society
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• v.16 no.1
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• pp.25-32
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• 2015

With the increased frequency of crime such as assaults and sexual violence, the reliance on CCTV in arresting criminals has increased as well. However, CCTV, which should be monitored by human labor force at all times, has limits in terms of budget and man-power. Thereby, the interest in intelligent security system is growing nowadays. Expanding the techniques of an objects behavior recognition in previous studies, we propose a system to detect forms of violence between 2~3 objects from images obtained in CCTV. It perceives by detecting the object with the difference operation and the morphology of the background image. The determinant criteria to define violent behaviors are suggested. Moreover, provable decision metric values through measurements of the number of violent condition are derived. As a result of the experiments with the threshold values, showed more than 80% recognition success rate. A future research for abnormal behaviors recognition system in a crowded circumstance remains to be developed.

• Journal of Industrial Convergence
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• v.21 no.5
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• pp.109-122
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• 2023

The purpose of this study is to look into how elderly people's health promoting behaviors influence their successful aging, to realize how their perception of successful aging and their life satisfaction have the mediating effect on the path from health promotion behaviors to successful aging, and to find the significant influence of successful aging perception and life satisfaction on successful aging. This researcher conducted a questionnaire survey with elderly people using a senior welfare center in Gyeonggio-do, and analyzed 250 copies that. For data analysis, SPSS Win 25 was applied to conduct frequency analysis, descriptive statistics, t-test, one-way ANOVA, and correlation analysis. Mediating effect analysis was made to verify the causal relations between health promoting behaviors and successful aging, and to validate the mediating effect of successful aging perception and life satisfaction on the causal relations. As a result, elderly people's health promoting behaviors influenced their perception of successful aging, their life satisfaction, and their successful aging. Their perception of successful aging had the mediating effect on health promotional behaviors and successful aging, but life satisfaction did not so. This study has the following implications: it is necessary to train persons specializing in support for health promoting, to develop an efficient health promotional model and program, and to provide an opportunity of education. It is necessary to come up with a support policy in consideration of tangible or intangible factors. It is necessary to establish a policy in line with economic levels and health conditions of elderly people.

• Proceedings of the Korea Information Processing Society Conference
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• 2012.04a
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• pp.1070-1072
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• 2012

최근 헬스케어에 대한 관심이 급증하면서, 운동을 통한 칼로리 관리 애플리케이션 연구들이 진행되고 있다. 기존의 연구들은 행위 인식 모델이 정교하지 못할 뿐만 아니라, 기초적인 행위 인식 기술을 사용하여 정확한 운동량을 측정하기 어렵다. 또한, 파일 시스템을 이용하여 센서, 행위, 칼로리 등의 다양한 데이터를 효과적으로 관리하기 어렵다. 본 논문에서는 경량 데이터베이스를 이용하여 개인의 칼로리 섭취량 및 소모량을 관리해주는 시스템을 제안한다. 제안하는 시스템은 스마트폰용 경량 데이터베이스에 저장된 데이터를 활용하여 효과적으로 칼로리를 관리하며, 칼로리 소모량 측정 정확도를 높이기 위해 계층적 행위 인식 모델을 제시한다.

• Proceedings of the Korean Information Science Society Conference
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• 1999.10b
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• pp.251-253
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• 1999

가상현실을 이용한 교육시스템에서 학습자를 대신한 에이전트의 설계에 대한 많은 연구가 이루어지고 있다. 이러한 에이전트의 설계에 있어서 가장 중요한 점은 동적으로 변화되는 환경에서 이루어지는 다양한 현상과 사건들을 인식하는 방법과 이에 대해 반응하는 행동의 설계와 구현에 있다. 본 논문에서는 에이전트의 행동을 설계함에 있어서 교육 시스템의 목적에 부합하기 위한 주위 객체들과의 상호작용을 통한 행위의 인식, 장이론을 이용한 공간객체와의 상호작용 등을 이용하여 좀 더 효율적으로 주위 환경에 반응할 수 있는 자율 에이전트의 행위에 대한 방안을 제시한다.

• Korean Business Review
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• v.7
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• pp.145-164
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• 1994

본 연구는 조직의 작업정보환경이 개인의 피이드백 추구 행위에 어떤 영향을 주는가에 관한 탐색적인 연구이다. 피이드백 추구 행위를 '탐지'와 '문의'의 유형으로 나누되, 피이드백 원천에 따라 상사에 대한 문의, 상사에 대한 탐지, 동료에 대한 문의, 동료에 대한 탐지를 구분하였으며, 작업정보환경은 피이드백 원천(상사, 동료, 자기자신)으로부터의 피이드백을 피이드백 부호(긍정적 피이드백, 부정적 피이드백)에 따라 평가하였다. 연구의 방법은 군 헬리콥터 조정사 훈련생 187명을 대상으로 질문지 방법에 의하였다. 연구의 결과 첫째, '탐지'와 '문의'의 피이드백 추구행위는 정의 상관관계를 보임으로써 피이드백 추구전략으로서 두 행위 유형은 서로 대체관계에 있지 않으며, 특정 유형의 피이드백 추구행위가 오히려 다른 유형의 피이드백 추구행위에 대한 필요성을 높여주고 있는 것으로 나타났다. 즉, '탐지'를 통한 피이드백과 '문의'를 통한 피이드백은 적어도 질적으로 상이한 정보를 제공하여 주는 것으로 인식되고 있음을 알 수 있다. 둘째, 어떤 원천으로부터 제공되었거나 추구된 피이드백 정보는 다른 피이드백 원천으로의 추구행위와 정의 상관관계를 보임으로써, 여러 피이드백 원천들로부터 제공되는 피이드백 정보는 피이드백 수신자에게 서로 대체적인 역할을 하지 않으며, 특정 피이드백 원천으로부터의 피이드백은 피이드백 수신자로 하여금 질적으로 상이한 정보를 제공하여 주는 것으로 인식되는 상이한 원천으로부터의 피이드백을 추구하도록 한다는 것을 알 수 있다. 셋째, 작업정보환경에서 긍정적 피이드백이 주어지면 인상관리의 측면에서 적극적으로 피이드백을 추구하는 경향이 있었으며, 부정적 피이드백이 주어진 경우, 본 연구에서와 같이 성과가 매우 중요시 여겨지는 조직에서는 개인이 그 정보적 가치를 높게 평가하여 대체로 피이드백을 적극적으로 추구하는 경향이 있는 것으로 나타났다.