• Journal of The Korean Association For Science Education
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• v.18 no.4
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• pp.473-483
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• 1998

A learner's cognitive conflict with his /her existing conception is regarded to be one of the most important factors for a conceptual change. In this study, the effects of the conflict situation types on inducing students' cognitive conflicts in Newton's law were examined. The thirty-four students of 10th grade were selected from a rural high school based on the result of pre-test. The two different types of conflict situations among many possible types were used in this study. One type was using logical conflict situation and the other was demonstrating real conflict situation. The levels of cognitive conflict were measured by 4-point Likert scale by three interviewers. As the results, the demonstration method was more effective than the logical argument method. In case of the logical argument method, rather than showing scientific conceptions, suggesting another misconception was more effective to the students who have misconception. However, logical argument method was not effective to those who have scientfic conceptions. To the students who have unscientific conceptions, the demonstration method was very effective for inducing cognitive conflict. From the results of this study, demonstration method of teaching seems to be very effective for inducing students' cognitive conflict and overcoming their misconceptions on scientific concept.

• Journal of Families and Better Life
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• v.32 no.4
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• pp.23-39
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• 2014

The purpose of this study is to examine if there is any difference due to the general characteristics of middle school students who are beneficiaries of educational welfare services and a special quality of use about educational welfare services. Additionally, the examination has been performed to understand the relationship that exists between the satisfaction about educational welfare services, and adaptation to school life and self-respect of middle school students who are beneficiaries of educational welfare services. The results of the study showed meaningful higher scores by male students than female students only in the environmental adaptation area among lower areas in school life adaptation due to sex. Due to school year, third-year students showed meaningful high scores in school life adaptation. The satisfaction about programs in each area of educational welfare services of middle school students who are beneficiaries of educational welfare services showed a meaningful static relationship with school life adaptation. The inspection of the relationship between satisfaction about educational welfare services and 5 lower areas of school life adaptation showed statistically meaningful results in the order of adaptation to the teacher, adaptation to the environment and adaptation to the class, which are lower areas. The examination on the relationship between self-respect and adaptation to school life showed that self-respect has a static relationship with all lower areas of school life and overall school life adaptation. However, no meaningful relationship was shown between the satisfaction about educational welfare services and self-respect. Also, it was found that the factors of grade, self-respect, the number of service utilization have an effect on school life adaptation. This study has some limitations. But in this study, which is different from other studies which dealt with students who had used partial areas of educational welfare services, students who were using all 4 areas of educational welfare services were selected as subjects. In addition, this study is significant in that basic data has been offered for establishment of a policy on educational welfare services in middle schools in the future.

• Clinical and Experimental Reproductive Medicine
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• v.26 no.3
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• pp.419-432
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• 1999

Objective: To establish the evaluation system of the quality of oocytes on the basis of the incidence of cumulus cells apoptosis, to investigate the relationships beween the incidence of cumulus cells and the outcomes of IVF-ET. Method: Thirth-four cycles undergoing controlled ovarian hyperstimulation for IVF-ET with tubal infertility (23 cycles) or unexplained infertility (11 cycles) were included in this study. Cumulus cell masses surrounding mature oocyte and co-culture of embryos with autologous cumulus cells during IVF-ET process. The incidence of apoptosis in cumulus cells was assessed by apoptosis detection kit fluorescein. The effect of co-culture using cumulus cells and the incidence of cumulus cells apoptosis. Results: The results were as follows: 1. The incidence of apoptosis in cumulus cells markedly increased in patients aged 40 or over, while the fertilization rate was greatly decreased in those age group. 2. Apoptosis in cumulus cells was found in both the fertilized oocytes and unfertilized oocytes, but the incidence of apoptosis was higher in unfertilized oocytes. 3. There is no clear correlation between apoptosis in cumulus cells and the number of oocytes retrieved. However, the incidence of apoptosis was increased when the number of oocytes retrieved was 5 and fewer in comparison with $6{\sim}10$. 4. Embryo grade was significantly affected by the incidence of apoptosis in cumulus cells. 5. Pregnancy rate of IVF-ET per cycle was 29.4%, and the pregnant group had the higher fertilization rate and a significantly lower incidence of apoptosis in cumulus cells compared with the nonpregnant group. 6. When cumulus cells were used as helper cells in the co-culture of the embryo, in vitro activity of cumulus cells based on morphological change and proliferation did not influence the quality of embryo, but was closely associated with the implantation rate and pregnancy rate, which was enhanced when morphological changes and proliferation of cumulus cells was more active. 7. This difference in the outcome of IVF-ET according to in vitro activity of cumulus cells used for co-cultue was not associated with the incidence of apoptosis in cumulus cells; but rather had likely relations with the different secretion pattern of protein, which may be an embryo trophic factor by cumulus cells. Conclusion: These results suggest that the incidence of apoptosis in cumulus cells can be used in predicting oocyte qualities and the outcomes of IVF-ET. And the effect of co-culture largely depends on the in vitro activity of cumulus cells as well.

• Journal of dental hygiene science
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• v.14 no.3
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• pp.379-389
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• 2014

This study intended to examine the health status and quality of life among the elderly patients who stayed in geriatric hospitals for a long period of time. The study involved 222 elderly who were older than 65-year-old, an oral examination was conducted in 10 geriatric hospitals located in the metropolitan area and Chungcheong-do. Cross-tabulation, one-way ANOVA, t-test, and Stepwise multiple regression were performed for analysis. The average number of teeth among the subjects was 11.22 and that of dental caries was 1.17. Also, the average number of teeth mobility was 0.93 and halitosis was detected among 81.9%. Only 29.70% reported absence or a kind of systemic disease and 70.31% of the subjects was shown to have more than two kinds of complex disease. In addition, 87.8% of the subjects had depression and among them, 55.40% showed serious depression. The average score on quality of life was 2.62 points and as for the related factors, the number of remaining teeth and dental caries were counted along with care grade, hospitalization period, and age. According to such results, the oral health status among the elderly patients staying long in geriatric hospitals were not good in general; also they showed high level of systemic disease and depression and low quality of life.

• Journal of the East Asian Society of Dietary Life
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• v.17 no.3
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• pp.338-350
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• 2007

The objectives of this study were to analyze nutrition-related problems and to develop the nutrition education programs for high school students A survey was conducted with 500 students in the second grade level at high schools in Daegu who differed in socio-economic characteristics. In addition, body composition analysis was accomplished by the Inbody 3.0. The developed questionnaires were distributed and 481 questionnaires were collected with a 96.2% of response rate. Statistical data analysis was completed using SPSS WIN(ver.12.0) for descriptive analysis, reliability analysis, factor analysis, t-tests and $X^2$-tests. We first analyzed students' problems related to nutrition and environmental factors. In a question addressing skipping breakfast, only 11.5% answered they "do not eat" breakfast. In regards to BMI, the male students' degree of obesity was higher. Second, we analyzed living environments, which greatly influence dietary behavior. For the snacks-related categories, most of the students liked bread, cake and other snacks. When they chose the snacks, they mainly considered taste. There were significant difference among the males and females(p<.01) in terms of snacks intake habits, where 43.1 % of the males answered they snack "occasionally" and 43.4% of the females answered they snack "according to how they feel". In the case of beverages, the males consumed significantly more(p<.001). Based on their regional groups, the area A group preferred milk and milk products, and the area B group preferred soft drinks. As for the time of beverage intake, 77.6% of the females answered "with snacks", which was significantly higher than 61.4% of the males(p<.001), 12.2% of the males drank beverages after exercise. For late snacking, 68.0% of the male students and 71.1 % of the female students consumed late snacks. Most of them preferred bread, cake and other snacks. The reasons for taking a late snack were "when I feel hungry" by 61.8% of the males which was higher than the females(p<.001), 23.6% of the females consumed late snacks "impulsively". Ideally, in order to improve the food habits of high school students effective and practical nutrition education programs that consider gender and regional school group, should be carried out.

• Journal of Korea Port Economic Association
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• v.27 no.4
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• pp.37-49
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• 2011

By strengthening the market control and expanding the networks, providers of global logistics are expanding their service scope. E-logistics connects e-business to internal and external information system by using WMS, TMS, and OMS. The paper focuses on analyzing the efficiency of the tope fifty Global Logistics Providers. Therefore, the study classifies the factors which specify the efficiency of a total logistics industry and verified its firmness. Furthermore, the most recently published reports by Logistics Quarterly and Armstrong Association in 2011 was used in order to guarantee credibility of the study. This study utilizes three years of materials, from 2007, 2008, 2009 on publish 2010, for scope period for analysis. By applying SBM (Slack Based Measure) & the DEA Window model, the trend in efficiency and stableness was analyzed. Consequently, the main purpose of the paper is evaluating the efficiency. Also, analyzing its determinants and illustrating a long-term relationship between the annual turnover and major shippers was used as output measures. In addition, the number of information system operations, the grade of information systems, and employee of Logistics Providers was used as input measures.

• Journal of the Mineralogical Society of Korea
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• v.22 no.4
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• pp.371-383
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• 2009

Crystallinity and textural relations, which are crucial in terms of the quality concept of high-purity limestone, have not been effectively applicable to the limestone evaluation as crude ore due to the difficulties in precise measurements. To overcome the above, as a new method of ore characterization, a measurement of shape factor and grain boundary frequency utilizing the image analysing system was adopted in this study. Some domestic limestones used for lime manufacturing were investigated by such a quality evaluation method, and its results are discussed and correlated each other samples. As the result, even though calcite contents of crude ore, i.e., limestone grade and its crystal size are similar, quality of manufactured lime is remarkably different depending on the degree of shape factor and grain boundary frequency. In other words, as the more irregular in crystal shape and the higher the grain boundary frequency, the manufactured quick lime became more superior in all terms of lime quality such as rate of calcination, porosity, reactivity, sintering and decrepitation effect. However, because the quick lime become easily overheated in case of relatively higher degree in shape factor and grain boundary effect, a technology minimizing heating time is necessary for the manufacturing of high quality lime. In limestone industry, such a ore characterization method will be much more reasonable than the conventional method by measurement of mean size, because the method may collectively comprise crystal shape and other textural factors which can not be numerically evaluated in the past.

• Journal of Korean Home Economics Education Association
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• v.21 no.1
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• pp.35-49
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• 2009

The purpose of this study was to examine the effect of instruction for the development of analytical rubrics based on teacher-student compromise, which would be applied to performance assessment about the ninth-grade housing unit of the 7th national curriculum. In order to find out the influence of the rubric development instruction on learning motivation, two different third-year classes in a middle school were selected respectively as an experimental group and a control group. The way of presenting the rubrics and learning motivation were respectively selected as independent and dependent variables. Both groups took two lessons and a pretest-posttest on learning motivation. As for the analytic rubric for the individual task performance in the housing unit, three evaluation items were selected. As a result, the instruction for the learner-involved development of analytical rubrics for the housing segment had a positive effect on the confidence and satisfaction of the middle schoolers, which were two out of four sub-factors of learning motivation. Open-ended questions showed that the instruction got to build confidence in the course of being aware of the evaluation criteria and fulfilling the given tasks.

• Korea Journal of Hospital Management
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• v.8 no.2
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• pp.70-92
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• 2003

The main objective of this paper is to investigate the factors affecting organizational citizenship behavior of hospital employees, and based on the investigation, to suggest some implications for effective human resources management of hospitals. For this purpose, physical therapists were selected as the subject of the research. Using their individual characteristics, job characteristics, professionalism and group cohesiveness as the variables affecting organizational citizenship behavior, an empirical model was constructed and tested. A survey was conducted through structured and self-administered questionnaire for the physical therapists working at hospitals of Busan-Kyongnam area, and data from 240 therapists were utilized in the final analysis. Major results of the empirical analysis are as follows: First, perception on professionalism and the degree of organizational citizenship behavior were higher for male, older, relatively more-educated and higher-grade employees. It is necessary to develope some measures to educate and motivate the employees who are in lower state of professionalism and organizational citizenship behavior. Second, among the individual characteristics, need for growth was found to have significant, positive influence on professionalism and group cohesiveness, but no direct effect on organizational citizenship behavior. On the other hand, extroversion had direct, positive effect on organizational citizenship behavior, as well as on professionalism and group cohesiveness. This result suggests that personnel selection and personality education should be conducted carefully. Third, job characteristics appeared to have very large, positive effect on professionalism, but not directly on organizational citizenship behavior. Fourth, professionalism was found to have very large, positive influence on group cohesiveness and direct, positive effect on organizational citizenship behavior. This implies that enhancing professionalism of physical therapists can strengthen organizational citizenship behavior in hospitals, and hence top management should actively support the programs for job re-design, skill education and quality improvement to enhance professionalism of their employees. Fifth and last, as an intervening factor, group cohesiveness appeared to have the largest, direct, positive effect on organizational citizenship behavior. It is, therefore, important for top management to improve group cohesiveness by exploring ways toward greater harmony and solidarity among the members of physical therapy department.

• Research in Community and Public Health Nursing
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• v.11 no.2
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• pp.577-590
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• 2000

This study is basic research for developing health promotion programs in elementary school and is looking at the effect factor of School nurses perception and school health promotion. This study was conducted with the ACCESS model for school health promotion from WHO. The subjects of this study were 28 elementary school nurses located in the west side of Kung-Nam from the 7th of June to the 30th of June by direct interview. The results of this study are summarized as follows: 1. the score from obesity, dental caries, health counselling, scoliosis, hepatitis B, immunization BCG items are higher in the low grade but showed significant difference in visual disturbance items. 2. the average score of school health promotion perception is 5.04. The list of school health promotion is composed of school health policies(5.39), physical environments (5.38), school health services(5.34), social environments (5.22), personal health skills (4.92), and community relationships(4.64). 3. after an analysis of the perception of school health promotion from school nurses, the relationship between the school health budget and the school health policy and school health service was shown to be significant. 4. after analysis of the effect factor of perception of school health promotion from school nurses, school health policy, school social environment, personal health skills, and school health service were shown to be significant. 5. The factors in school health promotion are the number of classes and students, school budgets, school nurses' final education and age, health education classes per week, and teaching experience. Particularly the school health budget and school nurses of the classes per week are statistically significant. The suggestions of this study are as follows: 1, as a related factor of school health promotion. the generally characteristics of schools and school nurses should be considered for improving the perception of school health promotion. 2, the period of health education for effective school health management and health education should be an on-going program. 3. the scope of school health promotion and perception should be considered for developing health promotion programs. 4. elementary school health promotion programs should be developed and applied to research. 5. computer system programs should be developed for effective school health projects.