• Journal of the Society of Disaster Information
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• v.20 no.1
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• pp.106-116
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• 2024

Purpose: This paper conducts IoT and CCTV-based safety monitoring to analyze accidents and potential risks occurring at construction sites, and detect and analyze risks such as falls and collisions or abnormalities and to establish a system for early warning using devices like a walkie-talkie and chatbot service. Method: A safety management service model is presented through smart construction technology case studies at the construction site and review a relevant literature analysis. Result: According to 'Construction Accident Statistics,' in 2021, there were 26,888 casualties in the construction industry, accounting for 26.3% of all reported accidents. Fatalities in construction-related accidents amounted to 417 individuals, representing 50.5% of all industrial accident-related deaths. This study suggests implementing AI chatbot services for construction site safety management utilizing IoT-based health monitoring technologies in smart construction practices. Construction sites where stakeholders such as workers participate were demonstrated by implementing an artificial intelligence chatbot system by selecting major risk areas within the workplace, such as scaffolding processes, openings, and access to hazardous machinery. Conclusion: The possibility of commercialization was confirmed by receiving more than 90 points in the satisfaction survey of participating workers regarding the empirical results of the artificial intelligence chatbot service at construction sites.

• The Journal of the Korea Contents Association
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• v.12 no.8
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• pp.343-354
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• 2012

The purpose of this research was to compare the concentration variation between the sport talented children who have been applied with a sport program and the ordinary children who did not. The experiment group was composed of 59(male:32, female:27) sport talented children who were selected from the center of Busan University sport talent in April 2010. The control group was made up of 148 students who participated in 3 elementary schools located in Busan. Among these ordinary students 80 participants were finally used, as some of the students were excluded who were playing as athlete or studying in Science gifted program, FAIR concentration test sheet was used for this study, which was reformed for Korean version by Oh(2002). Covariance analysis was applied for using SAS 9.1 package, and the following conclusions were drawn. First, both the sport talented group and ordinary group of FAIR concentration's 3 subfactors were improved significantly after 8 months. Second, no difference between the sport talent group and ordinary group were found in the variations of post test of concentration's 3 subfactors. Especially there was no difference among groups in oneway-ANOVA using data of post test.

• Journal of Navigation and Port Research
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• v.37 no.1
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• pp.29-34
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• 2013

In this study, the corelation among the knowledge of and attitude to health care and the actual health protective practices of seafarers was surveyed and analyzed in order to provide the management method for improving seafarers' health care. The subjects of this study were 516 seafarers who took refresh training courses in Korea Institute of Maritime and Fisheries Technology. The questionnaire was constructed under the Guidelines for National Health of the Ministry of Health and Welfare and modified for studying seafarers' health state. The collected data were analyzed by SPSS package. The results were as follows: 1) The older, married, religion believer, higher ranker, the man who have longer career have the higher degree of knowledge, attitude, and practice-degree(p<0.05). 2) The degree of knowledge, attitude, and practice are $4.24{\pm}0.35$, $3.45{\pm}0.41$, and $3.39{\pm}0.22$ in mean by 5-score scale, respectably. 3) The corelation among the degree of knowledge, attitude, and practice was significant(r=0.33~0.63, p<0.05).

• Journal of Hospice and Palliative Care
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• v.16 no.3
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• pp.166-174
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• 2013

Purpose: This study aims to identify factors that influence middle-aged men's attitude towards death. Methods: The study enrolled 204 middle-aged (range=40~59 years) male residents of Daegu in Korea. Using a structured questionnaire, data were collected in October 4~30, 2010. For data analysis, we used descriptive statistics, t-test, one-way ANOVA, Scheff$\grave{e}$'s test, Pearson correlation coefficient, and stepwise multiple regression with SPSS WIN 14.0. Results: Participants' attitude towards death significantly differed according to educational level, religion, volunteer activities, and perceived health status. Moreover, their attitude towards death was negatively correlated with life stress and depression and positively correlated with self-esteem, life satisfaction, and coping behavior. The factors influencing the attitude towards death were life satisfaction, daily stress, religion, and depression, which explained approximately 25.7% of the total variance. Conclusion: Middle-aged men perform a crucial role in our society, and their attitude toward death affects how they cope with a situational crisis such as a terminal cancer or withdrawal of life sustaining treatment. Therefore, it is necessary to develop and implement a support program for middle-aged men, which offers them with various strategies to better manage their daily stress and improve their life satisfaction and coping skills.

• Journal of Agricultural Extension & Community Development
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• v.21 no.2
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• pp.185-209
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• 2014

The aim of this study was to examine middle school students' career attitude maturity with five career elements(career decisiveness, goal orientation, confidence, preparation, and independence) related to relational(parent, teacher, friend) and school adjustment (school life, instruction, environment) variables. To accomplish this, 467 collected data was passed through correlation, and simple and multiple regression analysis using SPSS win 12. The main finding was that friend's support was highly correlated to and significantly affected career preparation and independence of the students. School life and instruction were also highly correlated to their career preparation. Parents' and teachers' support affected their career decisiveness. Their school life was an important factor to influence career decisiveness, preparation, and independence of the students. Generally, friends' support and school life of the students were the most important factors that affected the students' career preparation and independence. From the findings, this study suggests that middle schools need to provide more vocational education, diverse after-school activities, and teacher training to support middle school students' career attitude maturity.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.9
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• pp.236-243
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• 2017

The purpose of this study is to investigate the relationship between the OKgram and abuse awareness, and between the the characteristics of the major field and abuse awareness of pre-service child care teachers who are taking the (child care) course as part of their university curriculum. Positiveness isclassified into 2 subfactors,self-positiveness and other positiveness, while abuses are classified into 4 sub factors,viz. body, sex, emotion and neglect, in order to investigate and analyze the effectsof each sub factor. Asurvey was carried out for students of the department of Child Care and the department of Social Welfare of the universities in Gyeonggi-do, Gangwon-do and Seoul, during the 5 day period from 8th May to 12th May, 2017. After conducting a frequency analysis, correlation and multiple regression analyses were performed, from which we madethe following conclusions. First, it was found that positiveness influences abuse awareness, and that when other positiveness is higher than self-positiveness, abuse awareness is increased. We also concluded that we should provide more personality programs that enhance others positiveness. Second, the seriousness of abuse level showed an average value of 4.594, which is highly recognized, while the level (required) to recognize the index wasin the order of sexual(4.789), physical(4.587), neglect(4.510), emotional(4.498), with the index of emotion beingthe lowest. This indicatesthe necessity to strengthen the social standard on emotion abuse awareness. Third, in the characteristics of the major field, the respondents answered that their actual work experience of being a pre-service child care teacher was helpful to raise their abuse awareness, and thatchild care practice wasthe most important.Therefore,we concluded that it is necessary to arrange practical courses which increase the chance of obtaining actual work experience and provide child care practice during child care teacher training.

• Journal of The Korean Association For Science Education
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• v.37 no.1
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• pp.25-37
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• 2017

The purpose of this study is to analyze the effects on particulate concept formation based on abductive reasoning model for elementary science class. For this study, an author selected two groups in the sixth grade. One group is an ordinary textbook-based control group (N=26) and the other group is an abductive reasoning model-based treatment group (N=26). After twelve lessons, the scores of Concepts Test for Gas were analyzed by t-test and two-way ANOVA. The result of t-test showed both the control and treatment groups have higher score than before they take the lesson. But after the lesson, an author found out that the treatment group had higher score than that of the control group. And compared to the number of particles expressed, the number of the treatment group were higher than that of the control class. The two-way ANOVA result revealed that the interaction effect between their cognitive level and treatment was not significant. And regardless of the level of cognition, the scores of treatment group are higher than those of control group. Therefore, abductive reasoning model-based elementary science class were found to be more effective for particulate concept formation. Based on the results, an author concluded that abductive reasoning model is very effective in teaching particulate concepts to elementary students.

• Journal of The Korean Association For Science Education
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• v.22 no.1
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• pp.40-53
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• 2002

This study was based on the analysis of earth and environmental science items in PISA 2000 data. The purpose of this study was to identify i) gender differences in scientific literacy, ii) item characteristics that favored either female or male, and iii) misconceptions that 15-years-old Korean students have in the field of earth and environmental science. The results revealed significant gender differences. Overall, male students demonstrated higher level of achievement than female students. On the other hand, amongst high ability students, female students outperformed male students in open-constructed items. Female students tended to score higher on items that required long answers or items related to scientific processes, whereas male students outperformed female students in science knowledge or items that required data interpretation. The study also revealed that a majority of Korean students had misconceptions in fundamental earth and environmental science knowledge, such as the direction of earth's axis and equator, and the causes of Greenhouse Effect.

• Journal of Science Education
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• v.35 no.2
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• pp.307-323
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• 2011

The study aims to investigate self-regulated learning ability (SRLA) of students and analyze its relationship to their science inquiry skill and affective domain of science in middle schools in Korea. For this end, the research questions include the followings: First, what level is SRLA of middle school students? Second, how does the relationship between SRLA and science inquiry skill look like? Third, how does the relationship between SRLA and affective domain of science look like? A research method employed in the study is the survey utilizing three questionnaires: a) a questionnaire of SRLA (Jung et al., 2004); b) a questionnaire of problem finding ability of the science inquiry skill (Jung et al., 2004); and c) a questionnaire of science affective domain (Seo et al., 2008, adopted from 2006 PISA Student Questionnaire). Responses to three questionnaires by 704 students from seven middle schools in Busan, Ulsan, and Gyeongnam in Korea were analyzed. The research findings were as follows: First, mean average scores of SRLA is 3.02 (${\pm}0.63$) in 5 Likert scale (1 = strongly disagree; 5 = strongly agree). Second, students with higher scores in science inquiry skill showed significantly (p<.05) higher scores in SRLA than others. Third, boys scored higher on self-efficacy scale than girls. As students advance their grade level, their affective domain levels of science significantly (p=.048) decreases, in particular, their self-efficacy level most significantly (p=.002) decreases. Fourth, SRLA was significantly (p=.000) correlated with science inquiry skill and affective domain of science. In conclusions, it appeared that the higher SRLA level of students in middle schools is, the higher level of science inquiry skill and affective domain of science is.

• 대한공업교육학회지
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• v.35 no.2
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• pp.1-24
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• 2010

The purpose of this study is to investigate provedly the effectiveness of the practice for the arts and crafts by machine for project based learning upon improving industrial high school students' key competency for vocation, and to provide the incumbent teachers and future teachers who want to conduct research, a similar study with the basic reference materials. The vocational key competencies interested in this study are communication ability, information usage skills, team work skills, problem solving skills, tool usage skills, and responsibility and confidence areas. Because the result of pre and post testing over these six areas has insignificant differences statistically, we reach a conclusion which project based learning is more effective than traditional practice methods at improving the vocational key competencies of industrial students. On the basis of the results of this study, I would like to suggest some kinds of things needed to improve the vocational key competencies of industrial high school students. First, we require the diverse research to investigate the best teaching and learning methods to cultivate people of ability with the vocational key competencies Second, it is required that to measure the extent of the improvement of the vocational key competencies of industrial high school students, we have to develop a more objective test tool than that used in this study. Third, in the light of facts that project based learning influences on improving the vocational key competencies of the industrial high school student, we will have to make an effort actively to find the best teaching and learning methods, like project based learning. Therefore, we need to give diverse training opportunities and financial support so that teachers can conduct research to find the best teaching and learning method at improving the vocational key competencies for industrial high school students.