• Journal of Yeungnam Medical Science
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• v.3 no.1
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• pp.141-148
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• 1986

The authors studied psychotic ism, using Derogatis's SCL-90, in the subjects of 3,499 male and 1,335 female college freshmen of Yeungnam University. The authors collected the reports of Self-Rating Psychoticism Scale during the periods from January to February, 1986, and applied ANOVA and t-test on psychoticism scores in order to compare them between various psychosocial factors, and sexes. The results are as follows : There was significant difference in the mean averages of total psychoticism socres between male and female students: male students scored 4.62+4.01, female students scored 5.03+3.89(P<0.01). Thirteen male students(0.4%) showed high psychoticism scores of 20 or higher, while seven female students(0.5%) showed the same scores. The male students who have maturated in city and the female students whose educational fees were paid by self, showed higher level of psychoticisrn scores(P<0.05). The male and female students who believed protestantism showed higher level of psychoticism scores(respectively P<0.05, P<0.01). There was a strong tendency toward higher psychoticisrn scores in the students who were dissatisfies with their home atmosphere, college, department and familiarity of parents and those who had pessimistic views of self in the past, present or future in both groups(P<0.001).

• Journal of the Korea Academia-Industrial cooperation Society
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• v.15 no.6
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• pp.3625-3634
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• 2014

This study was conducted to provide the basic data for the prevention and management of health risk of dental technicians by proposing the necessary data in the management of the health related quality of life of dental technicians. The subjects of the survey were 141 dental technicians working in 30 dental technical laboratories and corresponding companies in Daejeon area. A structured self-entry type questionnaire survey was implemented by measuring the work environment from December 20, 2011 to January 31, 2012 at the same time. The total score of health index showed a significant difference according to the working hours and smoking state as the a factor of the individual level, the physical health index showed a significant difference according to the smoking state and the exercise habits as the factor of the individual level. The mental health index showed a significant difference according to the working hours and smoking state as the factor of the individual level. The significant variable did not appear in the predictor of the group level. In conclusion, the quality of life of dental technicians in relation to health appeared to have a larger effect on the factor of the individual level than the factor of the group level.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.1
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• pp.316-324
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• 2017

The purpose of this descriptive study was to identify the relationship among incivility, burnout, coping, and satisfaction to clinical practice experienced by nursing college students in clinical practice. A set of self-reported questionnaires, which included demographic characteristics, incivility, burnout, coping, and satisfaction to clinical practice, was completed by 160 nursing college students. Data was analyzed using t-test, ANOVA, correlation analysis, and multiple regression analysis by SPSS ver. 18.0. The mean age was 21.5 years. The mean scores, in Likert scales, were 1.18. 3.41, 2.48 and 3.30 out of 5 for items of incivility, burnout, coping, and satisfaction, respectively. According to our analysis, significant positive correlations were observed among incivility, burnout, and coping; significant negative correlations were observed between incivility and satisfaction, as well as between burnout and satisfaction. The predictors on satisfaction to clinical practice were coping, incivility, and burnout. Our model explained 26.6% (F=9.868, p<.001) of the variance. Based on the findings of this study related to main impediment, it is necessary to build prepared practice environments, such as interpersonal relations capacity empowerment and supporting system. Therefore, various nursing curricular programs are needed to promote satisfaction through multilateral collaboration with clinical practice among nursing college students.

• Korean Journal of Cognitive Science
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• v.16 no.4
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• pp.369-386
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• 2005

Although Intelligent Tutoring System(ITS) offers individualized learning environment that overcome limited function of existent CAI, and consider many learners' variable, there is little development to be using at the sites of schools because of inefficiency of investment and absence of pedagogical content knowledge representation techniques. To solve these problem, we should study a method, which represents knowledge for ITS, and which reuses knowledge base. On the pedagogical content knowledge, the knowledge in education differs from knowledge in a general sense. In this paper, we shall primarily address the multi-complex structure of knowledge and explanation of learning vein using multi-complex structure. Multi-Complex, which is organized into nodes, clusters and uses by knowledge base. In addition, it grows a adaptive knowledge base by self-learning. Therefore, in this paper, we propose the 'Extended Neural Logic Network(X-Neuronet)', which is based on Neural Logic Network with logical inference and topological inflexibility in cognition structure, and includes pedagogical content knowledge and object-oriented conception, verify validity. X-Neuronet defines that a knowledge is directive combination with inertia and weights, and offers basic conceptions for expression, logic operator for operation and processing, node value and connection weight, propagation rule, learning algorithm.

• The Journal of the Korea Contents Association
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• v.18 no.10
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• pp.453-463
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• 2018

An analysis including ASE model accessing based on the intention of behavior performance of online university students is a new approach to improve academic persistence considering the characteristics of students with extensive personal variables, a uniqueness of learning environment. This study aimed to identify the relationship between ASE model including academic stress and academic persistence, and the effect of these factors on academic persistence of online university students. Data were collected from 181 sophomores in K open university from March to June, 2018. Frequency analysis, ${\chi}^2-test$, t-test, F-test, Pearson's correlation analysis, and multiple regression analysis used for data analysis. For factors affecting academic persistence, academic stress (${\beta}=-.16$, p=.016), online learning attitude (${\beta}=.44$, p<.001), and social support among social influential factors (${\beta}=.16$, p=.045) were statistically significant and the prediction model of academic persistence showed 29% explanation power (F=15.76, p<.001). To enhance academic persistence of online university students, it is needed to develop programs to reduce academic stress, improve attitude toward online learning, and improve social support.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.5
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• pp.285-293
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• 2017

This study examined the causal relationship among job stress, fatigue, and job satisfaction, which affect the turnover intention of elderly nursing home care workers. Data were collected from Sep.15 to Sep. 30, 2014. Structured self-administered questionnaires were delivered and collected without the respondents' personal information. The subjects were 232 female care workers working in nursing homes in D city. The data were analyzed using the SPSSWIN 21.0 and AMOS 21.0 programs. Covariance structure analysis was performed to estimate the causal relationship between the variables affecting the turnover intention of care workers. The results of the analysis were as follows. The variables included in this study were fatigue, which comprised 4.9% of job stress. Job satisfaction explained 54.6% of job stress and fatigue. The turnover intention was 46.2% due to job stress, fatigue, and job satisfaction. In other words, job stress, fatigue, and job satisfaction had a direct or indirect effect on the turnover intention of care workers. In conclusion, job stress, fatigue, and job satisfaction affect the turnover intention. Therefore, a policy to improve the work environment and working conditions is needed to reduce the turnover intention of care workers, and fulfill their duties in a stable life time workplace.

• KIPS Transactions on Software and Data Engineering
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• v.7 no.10
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• pp.377-382
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• 2018

This study deals with internal state and tissue density analysis methods for red ginseng grade determination. For internal measurement of red ginseng, there have been various studies on nondestructive testing methods since the 1990s, It was difficult to grasp the most important inner hole and inside whites in the grading. So in this study, we developed a closed capturing device for infra-red illumination environment, and developed an internal measurement system that can detect the presence and diameter of inner hole and inside whites. Made devices consisted of infrared lights with a high transmission rate of red ginseng in 920 nanometer wave band, a infra-red camera and a Y axis actuator with a red ginseng automatically controlled focus on the camera. The proposed algorithm performs an auto-focus system on the Y-axis actuator to automatically adjust the sharp focus of the object according to the size and thickness. Then red ginseng is rotated $360^{\circ}$ at $1^{\circ}$ intervals and 360 total images are acquired, and reconstructed as a sinogram through Radon transform and Back-projection algorithm was performed to acquire internal images of red ginseng. As a result of the algorithm, it was possible to acquire internal cross-sectional image regardless of the thickness and shape of red ginseng. In the future, if more than 10,000 different shapes and sizes of red ginseng internal cross-sectional image are acquired and the classification criterion is applied, it can be used as a reliable automated ginseng grade automatic measurement method.

• Journal of dental hygiene science
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• v.11 no.1
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• pp.41-46
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• 2011

The purpose of this study was to examine the work and turnover of dental hygienists in a bid to find out problems with them and feasible reform measures. The subjects in this study were 383 dental hygienists, on whom a self-administered survey was conducted in May and June, 2010. Concerning the work of the dental hygienists by the type of dental institution, the largest group placed importance on treatment cooperation as the major duty. Both of the dental clinic(54.3%) and the dental hospital employees(30.0%) faced the most difficulties in providing treatment counseling. As to the work awareness of the dental hygienists by career, the greatest group gave weight to treatment cooperation as the major duty, and the gaps in that aspect were statistically significant (p<.05). In dental clinics, working conditions (27.2%) and in dental hospitals, salary increase (37.1%) should be given top priority for improvement. The most common reasons for which dental hygienists changed theirs jobs were significantly different between dental clinics and dental hospitals: discord with supervisors (39.3%) in dental clinics and dissatisfaction with the salary (28.6%) in dental hospitals. The difference between the two results were statistically significant (p<.05). These findings indicate that independent working and improvement in working conditions of dental hygienists are urgently needed.

• Journal of The Korean Association For Science Education
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• v.37 no.2
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• pp.253-262
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• 2017

This study aims at investigating the perceptions of science teachers about the role of visual representations in the teaching of electromagnetism, and finding out how science teachers use visual representations in their teaching of electromagnetism and the difficulties they experience in dealing with those representations. A total of 121 science teachers responded to the online survey. The results showed that most of the teachers agreed to the significance of using visual representations in the classroom but regarded their role as means of simply delivering science knowledge rather than constructing or generating knowledge. For the three visual representations widely used in teaching of electromagnetism in secondary schools (electrostatic induction on electroscope, magnetic field around current carrying wire, structure and principle of electric motor), the teachers preferred teacher-centered use of visual representations rather than student-centered and teacher's construction of representations were the most frequent among four types of use; interpretation, construction, application, and evaluation. The difficulties of teaching with these three visual representations were categorized into several factors; teachers, students, the characteristics of the representations, and lack of resources and classroom environment. Teachers' limited perceptions about the role of visual representations were associated with the ways of using visual representations in their teaching. Implications for the effective use of visual representations for science learning and teaching were discussed.

• Journal of the Korea Convergence Society
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• v.6 no.6
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• pp.65-74
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• 2015

In this study, the characteristics and oral health status of manufacturing workers were investigated to confirm the factors affecting their risk of developing dental caries and to prepare basic data for developing oral health promotion programs for such workers. A self-administered questionnaire survey and saliva microorganism examinations (S. mutans and Lactobacillus tests) were conducted from July 1 to August 1, 2014 targeting the manufacturing workers in the Busan and Gyungnam areas, to confirm the factors affecting dental caries development among manufacturing workers. As a result, the risk of dental caries was found to be higher in the workers who worked for 10 hours or longer a day than in those who worked for less than 10 hours a day, and in the smokers than in the non-smokers. A 1-point increase in the brushing pattern score resulted in 0.044 times less risk of dental caries development in the S. mutans test and 0.004 times less risk in the Lactobacillus test Therefore, systematic support is needed to improve the work environment of manufacturing workers, along with continuous oral health education in workplaces.