• 약학회지
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• 제39권6호
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• pp.654-660
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• 1995

The present study was attempted to investigate the mechanism of oxidative cellular injuries which occur in diabetic rats by determining changes of antioxidant enzymes activity in the lung of alloxan-induced diabetic rats, the contents of glutathione in the lung, liver, blood samples, and ${\gamma}$-glutamylcysteine synthetase activities in the liver. Superoxide dismutase activities (SOD), including Cu, Zn-SOD and Mn-SOD, decreased in the lung of diabetic rats compared with those of normal control rats. However, activities of catalase and glutathione peroxidase(GPX) activities were not affected in the lung of diabetic rats. In diabetic rats, glutathione contents in the lung, liver, and blood samples, as well as the activities of ${\gamma}$-glutamylcysteine synthetase in the livers which is known to be the key enzyme of glutatione biosynthesis, decreased significantly. From these experimental results, it is thought that the decrease in SOD activities in the lung, glutathione contents and ${\gamma}$-glutamylcysteine synthetase activities in some tissues in alloxan-induced diabetic rats may be the crucial cause of vullnerability to oxidative cellular injuries.

• 아동학회지
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• 제32권1호
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• pp.141-156
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• 2011

This research centers around an experiment conducted to determine the relative effectiveness of constructivist cooking activities as compared to traditional cooking activities for young children. Forty-six children, aged five years in two kindergarten classes were assigned to a experimental and comparative group. The experimental and comparative group participated in 12 units. The experimental group participated in the constructivist cooking activities, while the comparative group participated in the traditional cooking activities. Analysis of covariance revealed significant differences between the mean scores of the two groups on the posttests for scientific attitudes and creativity, indicating that the children in the experimental group performed significantly better on the tests than the children in the comparative group. The results of this study suggest that such constructivist cooking activities are able to improve the scientific attitudes and creativity of young children.

• 한국식생활문화학회지
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• 제11권5호
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• pp.673-681
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• 1996

The purposes of this study were to: a) investigate the percentage distribution and the time spent of dietetic activities and b) estimate dietitian's staffing needs in employee foodservices. In 6 employee foodservices, the dietetic activities were analyzed by work sampling methodology. The results of this study were as follows: 1. The percentage distributions of dietetic activities, delay and non-dietetic activities were 79.06, 20.39, and 1.55%, respectively; 2. The major activities of dietitians in employee foodservice were production management 21.00%, purchasing management 16.73%, record keepig 14.40%, and menu management 6.30%, 3. The total labor time per week was 3,310 min (55.16 hr) and specially the time spent on 13 dietetic activities was 2,626 min (43.77 hr). 4. The time spent per week on major activities of dietitians such as production management, purchasing management record keeping, and menu management were 693.93, 554.83, 483.99, and 205.22 min, respectively.

• 한국보육지원학회지
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• 제18권1호
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• pp.71-90
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• 2022

Objective: This study examined the experiences of pre-service Early Childhood teachers who participated in major-associated autonomous club activities. Methods: Participants were 31 students of the Department of Child Care at A University located in Gyeonggi-do, who participated in a major-associated autonomous music club activity. A content analysis was conducted to examine the meaning of the participation experience of pre-service Early Childhood teachers. Qualitative content analysis was the best method to analyze the meaning of their experience while participating in the activities. Results: The meaning of the experience of music club activities was organized into three categories: "enjoying abundant college life," "growing as a competent childcare teacher," and "being a responsible member of a community." Conclusion/Implications: The results show that pre-service Early Childhood teacher's participation in the activities of major-associated autonomous clubs has a positive impact on desirable changes in college life and adaptation to the department and on the growth of future professional Early Childhood teachers.

• International Journal of Advanced Culture Technology
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• 제11권3호
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• pp.106-112
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• 2023

This study proposes learner participatory activities for learner-centered college liberal arts classes. In addition, it analyzes learners' perceptions of and satisfaction with learner-centered classes and identifies the issues that must be considered when planning learner-centered activities for college liberal arts classes. The study used a learner-centered participatory activity in which participants created a 4-cut cartoon addressing a specific theme. An open-ended questionnaire was administered to identify learners' attitudes about and satisfaction with the learner-centered classes. It showed that most learners (87.5%) were highly satisfied with the 4-cut cartoon creation activities in the learner-centered participatory class. Learners identified the burden- free nature of the class activities, the fact that they improved their understanding of class content, and that they were fun (not boring) as the main reasons they found the class activities satisfying. In liberal arts English classes, more diverse participatory class activities should be developed to arouse interest and motivation of learners and encourage learners' participation.

• Educational Technology International
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• 제17권2호
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• pp.175-202
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• 2016

Most of the learning analytics research has investigated how quantitative data can affect learning. The information that is provided to learners has been determined by teachers and researchers based on reviews of the previous literature. However, there have been few studies on standard learning activities that are performed in e-learning environments independent of the teaching methods or on learning behavior data that are obtained through learning analytics. This study aims to explore the general learning activities and learning behaviors that can be used in the analysis of learning data. Learning activities and learning behavior are defined in conjunction with the concept of learning analytics to identify the differences between teachers' and learners' learning activities. Learning activities and learning behavior were verified by an expert panel review in an e-learning environment. The differences between instructors and learners in their usage were analyzed using a survey method. As results, 8 learning activities and 29 learning behaviors were validated. The Research has shown that instructors' degree of utilization is higher than that of the learners.

• Human Ecology Research
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• 제61권4호
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• pp.663-671
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• 2023

This study aimed to determine whether the achievement motivation of adolescents from multicultural families in their third year of middle school influenced their adaptation to school learning activities. It also explored the mediating effect of career attitude on achievement motivation and adaptation to school learning activities. An analysis was performed on data obtained from students in the third grade of middle school who participated in the sixth wave of the Multicultural Adolescents Panel Study (MAPS). The main findings were as follows. Firstly, achievement motivation exhibited a positive correlation with both career attitude and adaptation to school learning activities. Secondly, the achievement motivation of adolescents from multicultural families and their career attitude both exerted a positive effect on their adaptation to school learning activities. Thirdly, the mediating effect of career attitude on the relationship between adaptation to school learning activities and achievement motivation of adolescents from multicultural families was verified.

• 품질경영학회지
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• 제52권2호
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• pp.341-356
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• 2024

Purpose: This study investigates the role of authenticity in the effect of CSV activities of sports firms on corporate trust based on the attribution theory. Although many studies have been conducted on CSV, studies on the sports firms' CSV activities and their authenticity are insufficient. Methods: This study surveyed consumers who have experienced CSV activities of sports firms. The data were analyzed using structural equation model and hierarchical regression analysis. Results: The results showed that sports firms' CSV activities significantly affected corporate trust and authenticity played an important role in regulating the impact of CSV activities on corporate trust. The more authenticity was recognized by customers, the higher the performance of sports firms' CSV activities. Conclusion: These results imply that it is important to establish authentic CSV strategy, as performance of CSV activities is mainly determined by authenticity.

• 공학교육연구
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• 제27권4호
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• pp.12-20
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• 2024

This study found that the use of the metaverse enabled two-way communication online, regardless of time and place, making it possible to achieve teaching and learning goals. As applied subject (Occupational ethics in science and engineering) that allow for curriculum activities using the metaverse, team activities, and Problem Based Learning (PBL) selected. This study selected the teaching method that combines team activities of in-class and metaverse depending on the team projects and applies them appropriately according to the class procedure. Basic theoretical content learning and team activities related to the class content were conducted during class time. Also In Gathertown, team projects were carried out through team activities. As a result, this study confirmed that the PBL-subjects curriculum are definitely possible through the progress of the metaverse activities. If the educational environment for metaverse activities and the instructor's preparation and participation are supported, a very high learning effect is expected.

• Natural Product Sciences
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• 제11권1호
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• pp.1-9
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• 2005

The chemical constituents from Hedyotis diffusa Willd and their pharmacological activities were summarized. It has been known data that this herb contains anthraquinones, terpenoids, steroids, flavonoids, organic acid, and polysaccharides. The studies of pharmacology have shown that Hedyotis diffusa Willd possess various levels of activities such as anticancer, anti-inflammatory, immunostimulatory, antioxidative, neuroprotective, and hepatoprotective activities.