• Journal of Digital Convergence
• /
• v.15 no.7
• /
• pp.407-414
• /
• 2017

In order to identify an Convergence aerobic exercise's influence on obese female college students' Cardiorespiratory systems and arterial pulse wave Velocity, this study targeted female college students in D University in Y-gu, D-City, and selected total 26 ones having body fat percentage over 30% with no special disease in past and at present and no regular physical activity. After finally confirming their participation in this experiment by completely explaining the purpose of and contents of this experiment and getting the subjects' written contents to participate in the experiment, the investigator randomly arranged the subjects into the exercise group(N=13) and the control group(N=13) and conducted a 12-week aerobic exercise program to the exercise group this study got the following conclusion. First, concerning the body composition's change, the exercise group showed significant reduction in the weight, the body fat percentage, and the abdominal fat percentage. Second, for the respiratory & cardiovascular systems'change, the exercise group showed significant increase in the maximal oxygen uptake, the maximal heart rate, and the maximal breathing capacity. Third, for the arterial pulse wave Velocity's change, the exercise group showed significant reduction in the upper body(right and left hands) and lower body (right and left feet).

• Hwankyungkyoyuk
• /
• v.23 no.4
• /
• pp.1-14
• /
• 2010

The purpose of this study is to find the meaning of the good class, and based on this, situation of environmental education in high school is researched. Through those above processes, desirable direction of the environment class is suggested. For this study, we are trying to reflect the characteristics of environmental education on the general good classes, and from this, the meaning of good environment class is known. Moreover, for this study, we choose environment classes from four high schools leading by environment major teacher. From those four classes, we analyzed these things: educational situation of environment class, teachers' interviews. All of these are for analyzing environment class with the view of good environmental class. A well-formed environment class manifests the features of environment education in all aspects of teaching and learning process, including learning objectives, learning materials, procedures, and evaluations. Furthermore, it should be 'student-centered' class in which active interaction among the learners or between the instructor and the students is considered most important. Students are not the passive receiver, but rather, they actively participate in the learning process by reorganizing the knowledge as they experience and become independent learners who are actively involved in the problem-solving process. In this way, we can generate a great deal of students' interest and motivation, which in turn makes the class interesting, enjoyable, full of energy and still effective. If there is the class reflecting the factors of environmental education above good class' ways, it will be the good environment class. In the current situation of environment class, the rate of student's class participation and study activity was low. This tendency is not too different between four groups except students' support to teachers. This result means that learners' will to participate in their classes actively is not high. Moreover, about 46.3% of students did not understand some parts of new knowledge and about the parts, students' solution was 'does nothing' and the rate was also so high. Teachers tried to make their class with considering students' interest, and focusing their learner's real life. However, learners are all general education high school students, so teachers have aversion about making their students heavy activities.

• Applied Microscopy
• /
• v.23 no.2
• /
• pp.53-77
• /
• 1993

In this study, an attempt was made to investigate the probable organelles participating in the secretion of biligrafin. The animals (ICR male mice, 25-30gm) were divided into normal control and 6 biligrafin injected groups to which 30% biligrafin (0.006ml/gm b.w.) were injected at 10, 20, 40, 80, 160 and 320 min prior to the sampling. The mice of each group were perfused through the heart with ice-cold 2.5% glutaraldehyde buffered with 0.1M Na-cacodylate (pH. 7.4) under the Na-pentobarbital (Nembtal 0.0015mg/gm b.w.) anesthesia and liver tissues were taken from each group. Some specimens were immersed 1 hr in the same solution used in the perfusion. After an overnight rinse in 0.1M Na-cacodylate buffer containing 10% DMSO and 7.6% sucrose, $75{\mu}m$ fronzen sections were made for cytochemical study. The sections were incubated in thiamin pyrophosphatase (TPPase) and inosine diphosphatase (ID Pase) media for 70 min at $37^{\circ}C$ respectively and acid phosphatase (AcPase) medium for 40 min at $37^{\circ}C$. They were postfixed in 1 % $OsO_4$ for 1 hr. The other specimens were immersed for 8 hrs in the fixative consisting of 2.5% glutaraldehyde and 3.0% paraformaldehyde buffered with Na-cacodylate (pH. 7.4). All of the osmificated specimens were processed for electron microscopy. In both normal and biligrafin injected groups, endoplasmic reticulum (ER), vacuoles, Golgi apparatus and lysosomes were seen in the vicinity of bile canaliculus. In the biligrafin injected groups, however, the Golgi apparatus appeared to be decreased and ER and vacuoles were dilated and increased. The rough endoplasmic reticulum (RER) having a few attached ribosomes appeared to be the round saccule, especially at 20 min after biligrafin injection. Smooth endoplasmic reticulum (SER) seemed to be formed by the detachment of ribosomes at the cisternal end of RER. The cistern of SER showed saccules which probably budded off to form the vacuole. The vacuoles were devoid of visible centents. This finding seemed to be in agreement with the biochemical property of the bile constituents. The fusion between the vacuoles and bile canaliculus were frequently seen in the groups injected with biligrafin. The lysosome did not show any changes in the biligrafin injected groups. Accumulation of some material and lipid droplets were seen at the 40 and 80 min after biligrafin injection, especially at the latter. At 160 and 320 min after biligrafin injections, however, they were decreased successively while the RER stack, free ribosomes and polysomes were increased. Although the reactive products of TPPase and IDPase were observed in the ER saccules and vesicles of the normal control and biligrafin injected groups, the fusion between the bile canaliculus and saccules or vesicles could easily be seen in the latter. The AcPase activity, however, was observed in the cistern at the maturing face of Golgi apparatus and lysosomes in both normal and biligrafin groups. The results suggest that the biligrafin is excreted via the vesicles, vacuoles or sacoules probably derived from the SER without the participation of Golgi apparatus and lysosomes, and the excess amount of material is stored as inclusions during the repairing of the organelles being overactive.

• Journal of Science Education
• /
• v.35 no.1
• /
• pp.102-118
• /
• 2011

In this study the authors developed the practice-centered science camp program which was based on the review of out-of-school scientific activities and the standards of HASA (Hands, Head and Heart At Science Activity) curriculum emphasizing on hands-operated skills. After applying this science camp program we confirmed the validity of the program based on the students' responses at the camp. Using students' reports written during the camp and their essays written on the web-site after camp, we analyzed students' responses into four categories; knowledge, inquiry, hands-operated skills, and scientific attitudes. Also we evaluated the components of the science camp programs and students' perception of science and science-related attitudes using a questionnaire before and after the camp. In terms of contents and activities for the development and application of science camp, our result showed that the science camp program should be complemented to connect real life with high-tech science and include more activities related hands-operated skills and competition activities evoking constructive competitive spirits. In conclusion, we can infer that the agencies which take parts of the national policy enterprise related science education, such as Scientific Education Research Center, must develop and specialize science camp program with more competitive human resource system and economic support. Science educators should give more attention on joining school science education with out-of-school science education, which might have a positive effect on students' attitudes and participation toward science.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.16 no.9
• /
• pp.5955-5967
• /
• 2015

This study targets to recognize needs of adopting public management system in Urban Renewal Project. and to establish evaluation level of public management system using policy evaluation framework for establishing perspective and systemic level. Also, this study constructed basic principles as expanded concept like Public, expertise, participation, rationality, and sustainability based on previous studies and expert opinion. AHP analysis results are following. In case of upper level, post management and continuity are important factors. Also in case of under level, making stable economic system, honest operating system, reducing development costs, local development with self-sufficiency were important factors. through empirical results, the implications are following. First, public management system needs to develop a consistent principle from planning step to post management. Second, it is essential point that continuous retraining between involved people and drawing residents participate in progress activity. Third, when evaluating public management system, it is need that emphasize non-physical factor like conflict issue between stakeholder.

• Journal of Soil and Groundwater Environment
• /
• v.11 no.3
• /
• pp.1-11
• /
• 2006

Attempts were made to analyze the national policy of soil contamination prevention and management of inactive or abandoned metal (IAM) mines in Korea. This approach focused on legal systems and legislation, remediation technology development, and the arrangement or distribution of budgets pertaining to national policy since the mid 1990's. Prevention of Mining Damage and Recovery Act enacted. Defines the roles, responsibility and budget of the government when recovering mine damages. However, in 2005 there still remains to improve the national policy of soil contamination prevention and management of IAM mines. Analysis of national and industrialized foreign countries including the United States, the United Kingdom, and the Netherlands suggest the following improvements: i) arranging distinct regulations between strict and non-strict liability criteria for potentially responsible parties; limiting innocent and non-strict liability depending on the period of incurred mining activity, ii) enhancing participation of local communities by enforcing law and legislation, iii) establishing a national database system of (potentially) IAM contaminated sites based on the Website-Geographic Information System, iv) carrying out site-specific risk assessments and remediation of IAM contaminated sites, v) preparation and distribution of clean-up fund at mine sites adequately, and vi) technology development for the cleaning of IAM contaminated sites; awarding positive incentives of a legal nature for participants applying newly developed technology in IAM mines.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.17 no.9
• /
• pp.279-291
• /
• 2016

The objective of this study is to determine the structural relationships among the infant's temperament, father's involvement in child-rearing, and the infant's social and emotional behavior. To this end, research was conducted with 330 parents of infants aged 1 and 2 in 55 day care centers located in J city and I city, Jeollabukdo. Frequency analysis, reliability analysis, correlation analysis, confirmatory factor analysis, and structural model equation analysis were conducted using SPSS 21.0 and AMOS 21.0. First, the results of the structural model equation analysis showed that the infant's temperament had a negative correlation with leisure and guidance, while it had a positive correlation with activity and impulsivity, which are external manifestations of their social and emotional behavior. Father's involvement in child-rearing had a negative correlation with the adaptability and mood aspects of the child's temperament, and also with general anxiety, an internal aspect of his or her social and emotional behavior. Social and emotional behavior had a positive correlation with the approach avoidance aspect of the infant's temperament. Second, according to the results of the analysis of the route between the variables, infant temperament was found to be a significant route, having a statistically negative correlation with father's involvement in child-rearing. The results of this study showed that infant's temperament and father's involvement in child-rearing had effects on the infant's social and emotional behavior, and suggested the importance of having a proper understanding of the educational implications of the father's involvement in child-rearing, in terms of its effects on the infant's social and emotional behavior.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.17 no.10
• /
• pp.569-581
• /
• 2016

The purpose of this study was to determine factors affecting self-rated health status among the elderly in urban areas. The study subjects were 390 persons aged 65 years and older who had lived more than 5 years in D city. Interviews from the questionnaire were conducted from June through August 2016. The distribution of self-rated health status was rated in terms of dependent variables, with odds ratios and their 95% confidence intervals calculated using unconditional logistic models. As a result, 67.2% of the study subjects answered that they were healthy, whereas 32.8% were unhealthy. In the logistic regression analysis, disability and lowered IADL greatly lowered self-rated health status. The group without an occupation, living expenses from governmental subsidies, frequency of relative contents is seldom, anxiety is high, subjective sleep quality is low, satisfaction of daily life is low, had low levels of self-rated health status. Above results suggest that the self-rated health status of the elderly in urban areas is closely related to sociodemographic characteristics, physical health status, social activity participation, and psychosocial factors.

• Journal of Korean Home Economics Education Association
• /
• v.32 no.4
• /
• pp.1-18
• /
• 2020

The purpose of this study is to improve media literacy through home economics education. To this end, in this study, developed were 10 teaching-learning plans, learning activity sheets, and teaching materials for the 'relationship' area, the core concept of the 2015 revised home economics curriculum, using the ADDIE method. Pre- and post-survey results after implementing the developed program showed statistically significant improvements in enhancing participants' ability to access media and critical understanding of media. Through this, also found was that the ability to express and produce one's own thoughts and feelings has improved. As a result of a qualitative analysis, it was found that students who participated in the class experienced an overall change in the performance goals of media literacy, especially in 'critical understanding and evaluation', and improved in media use ethics and social participation consciousness as well. It is significant that this study has developed a program that can foster media literacy in home economics education. It is expected to help improve the acceptability of media literacy education in home economics education, enhancement of the expertise of home economics teachers' media literacy education, and the improvement of teaching and learning activities in the field.

• Journal of Digital Convergence
• /
• v.19 no.7
• /
• pp.397-408
• /
• 2021

The purpose of this study is to investigate the effect of teaching style of liberal arts physical education professors to class satisfaction, Class flow and physical education attitude of liberal arts students. A study was conducted on a total of 221 liberal arts students. For the collected data, a confirmatory factor analysis and reliability analysis (Cronbach' α) for the measurement tool were performed using the SPSS 26.0 and Amos 21.0 programs. And correlation analysis and multiple regression analysis were performed. The liberal arts physical education Professor's teaching stlye affects the student's class satisfaction (educational satisfaction, environmental satisfaction, psychosocial satisfaction, physical satisfaction), and students' class flow (class immersion, purpose experience, consciousness agreement, challenge, control, Integration). In addition, it has various effects on the student's attitude toward physical education(relationships, physical activity, active participation, health and physical fitness, positive emotions). Efforts to strengthen the competence of liberal arts physical education professors will be needed to revitalize the liberal arts physical education.