• Journal of Veterinary Science
• /
• v.21 no.1
• /
• pp.13.1-13.14
• /
• 2020

Currently, the systems for culturing buffalo spermatogonial stem cells (SSCs) in vitro are varied, and their effects are still inconclusive. In this study, we compared the effects of culture systems with undefined (foetal bovine serum) and defined (KnockOut Serum Replacement) materials on the in vitro culture of buffalo SSC-like cells. Significantly more DDX4- and UCHL1-positive cells (cultured for 2 days at passage 2) were observed in the defined materials culture system than in the undefined materials system (p < 0.01), and these cells were maintained for a longer period than those in the culture system with undefined materials (10 days vs. 6 days). Furthermore, NANOS2 (p < 0.05), DDX4 (p < 0.01) and UCHL1 (p < 0.05) were expressed at significantly higher levels in the culture system with defined materials than in that with undefined materials. Induction with retinoic acid was used to verify that the cultured cells maintained SSC characteristics, revealing an SCP3+ subset in the cells cultured in the defined materials system. The expression levels of Stra8 (p < 0.05) and Rec8 (p < 0.01) were significantly increased, and the expression levels of ZBTB16 (p < 0.01) and DDX4 (p < 0.05) were significantly decreased. These findings provided a clearer research platform for exploring the mechanism of buffalo SSCs in vitro.

• Journal of the Korean Society of Safety
• /
• v.36 no.1
• /
• pp.36-43
• /
• 2021

Effective leadership in safety performance, such as safety leadership, has received attention as a factor that greatly affects safety performance in various high-risk industrial environments. Based on prior research, this study aims to analyze the impact relationship between safety leadership, safety observance, safety education, and safety culture to reveal the effectiveness of safety leadership. In addition, this study will examine the effects of safety leadership on safety observance and safety education to identify the effects of safety understanding. For this purpose, a survey was conducted with employees of an aviation manufacturing company in Gyeongnam. For verification, a positive factor analysis, correlation analysis, and structural equation analysis were conducted using the AMOS 21.0 program. This study's findings show that, first, safety leadership has a positive and significant impact on safety observance and safety education. Second, safety leadership was found to have a direct impact on organizations' safety culture. Third, although safety observance has significant positive effects on safety culture, safety education has often been rejected. Finally, after verifying the control effect of safety understanding, this study uncovered the presence of an adjustment effect in the effect of safety leadership on safety observance. Therefore, based on the results of this study, theoretical and practical implications suggest that through the exercise of safety leadership, managers can improve their organizations' safety culture by increasing organizations' compliance with safety observance and/or acceptance of safety education.

• Journal of international Conference on Electrical Machines and Systems
• /
• v.1 no.3
• /
• pp.321-329
• /
• 2012

Providing variable load for testing a motor in high speed conditions is usually a difficult task. The eddy current brake can be used in application of load testing of motors. This paper deals with construction of a novel claw pole eddy current brake which is employed as a load for a DC counter rotating motor (CRM). These kinds of motors have two inner and outer shafts that rotate in opposite directions simultaneously, which are particularly suitable for under water propulsion systems. The prototype 45KW eddy current brake consists of two parts. One of them is installed on the inner shaft of the 60KW DC CRM and the other one is installed on its outer shaft. The simulation and experimental results with prototype brakes are also analyzed by using MATLAB/Simulink and the operational characteristic of the brake is demonstrated as a function of the motor speed and current of the magnetic poles.

• Journal of the Korea Society of Computer and Information
• /
• v.25 no.1
• /
• pp.167-175
• /
• 2020

The purpose of this study was to investigate the activation strategies of the inclusive education by sharing information & communication and creating a social disability empathy culture through literature review so that students with disabilities who receive inclusive education in general schools can get along with good friends and participate actively in various school or class events. The results of this study were as follows. First, in terms of volunteer activities of students without disabilities, the meaning, role, and activation strategies of inclusive education support for fostering disability empathy culture are described. Second, in terms of classroom management of classroom teachers, the meaning, role, and activation strategies of inclusive education support for fostering disability empathy culture are described. Third, in terms of special education teachers' role, the meaning, role, and activation strategies of inclusive education support for fostering disability empathy culture are described. Fourth, in terms of school administrators and educational administration institutions, the meaning, role, and activation strategies of inclusive education support for fostering disability empathy culture are described. The results of this study would be used as basic data to spread the disability empathy culture and improve the quality of inclusive education for students with disabilities to have inclusive education in the information society and be integrated into the community successfully.

• Journal of Korean Academy of Fundamentals of Nursing
• /
• v.17 no.1
• /
• pp.64-72
• /
• 2010

Purpose: This study was performed to measure hospital nurses' perceived patient safety culture and their safety care activities, and to investigate the relationship between these two factors. Method: This study was a cross-sectional survey. The participants were 301 nurses working at 4 general hospitals, and data collection was done from June 22 to June 30, 2009 by self-administrated questionnaires. Results: With a possible score of 5 points, the average score for nurses' perceived patient safety culture was 3.34, and for their safety care activities, 4.25. There were perceived differences in patient safety culture and safety care activities according to age, position, length of work experience and number of patient safety education sessions attended. All sub-factors in patient safety culture had a positive relationship with safety care activities. Factors influencing nurses' safety care activities were number of patient safety education sessions attended, hospital environment, and supervisor/manager. These factors explained 58.2% of the variance. Conclusion: The findings indicate that patient safety education is very important to improve nurses' safety care activity. So nursing supervisors/ managers should develop strategies encourage patient safety education, and make nurses' working environment safer.

• Cartoon and Animation Studies
• /
• s.35
• /
• pp.29-65
• /
• 2014

Visual culture art education (VCAE) seems to be the new paradigm for art education after postmodernism. Getting beyond the traditional art education, VCAE has expanded its scope of interest to include the visual environment that surrounds our life, thus pushing the boundary of art education beyond the traditional fine arts to cover pop culture and visual art. VCAE shares the issues as well as a lot of elements of culture and art education and in fact serves as a major theoretic background for culture and art education, in that it pays attention to the sociocultural context of images and emphasizes visual literacy and constructionist learning. In this paper, I have reviewed the theoretical background and related issues of VCAE with a view to presenting a direction for animation education, which is gaining in importance coming into the Age of Digital Media. VCAE was born in the progressive cultural atmosphere from the 1970s and thereafter, and its gist consists in figuring out visual artifacts and their action in order to improve individual and social life. Yet, VCAE continues with its development according to the changing aspects of visual culture, and currently, it is expanding its scope of interest to cover the esthetic, experiential education in visual culture and construction of meaning through digital story-telling. In the visual environment of the Digital Age, animation is establishing itself as the center of the visual culture, being a form that goes beyond an art genre or technology to realize images throughout the visual culture. Also, VCAE, which has so far emphasized visual communication and critical reading of culture, would need to reflect the new aspects of the visual culture in digital animation across the entire gamut from experiencing to understanding and appreciating art education. In this paper, I emphasize on Cross-Curricula, social reconstruction, the expansion of animation education, interests in animation as a digital media, and animation literacy. A study of animation education from the perspective of VCAE will not only provide a theoretical basis for establishing animation education, but also enrich the content of VCAE, traditionally focused on critical text reading, and promote its contemporary and futuristic orientation.

• Journal of the Korean Dietetic Association
• /
• v.12 no.2
• /
• pp.127-145
• /
• 2006

The purpose of this study is to develop an educational program for Korean traditional food culture, which is consisted of diverse activity factors and educational contents of the elementary students, and to transfer Korean traditional food culture to the next generation effectively. We have developed the program on the basis of FIB(Fun Integrated Behavior) approach derived from the activity-based education theory. This program is consisted of 32 subjects related with Korean traditional food culture, which is planned to perform in special activity classes for 2 semesters. An instruction guidebook for teachers and a workbook for students have been also developed. The traditional food culture educational program which is developed in this study could be used as a practical educational tool in 'dietary life and culture class' or 'special activity class' which is recently being introduced as the nutrition education curriculum in the elementary school. Furthermore, we expect this program to be able to contribute to transferring Korean traditional food culture to the next generation and reinforcing the elementary schoolers' diet behavior through inspiring them with a realization of the superiority of Korean traditional food culture.

• Journal of Families and Better Life
• /
• v.28 no.3
• /
• pp.167-178
• /
• 2010

The purpose of this study was to analyze the healthy family education, healthy family counseling, a healthy family culture, and healthy families integrated programs for single parent families in family support centers, The data collected came from 59 family support centers located in Seoul and Kyunggi-Do, Korea. Subjects included both single parents and their children. The children were of elementary school age. The types of programs were education, counseling, culture, and integrated program. Education programs were process separately for the parents and for the children. Counseling programs were mostly group-type program that aimed at improving the parent-children relationship. The contents included sections on anger management, reducing stress, enriching self-esteem. The culture programs involved experiences, camps that included cooking, watching movies, similar activities. Integrated programs involved respite support, rearing support, mentor-mentee partnerships, and the formation of self-help groups.

• International Journal of Computer Science & Network Security
• /
• v.21 no.12
• /
• pp.323-327
• /
• 2021

The article examines the process of professional training in educational institutions, media technologies and methods of media communication in the educational space of the institution, characterizes the place of media technologies in the educational space in the context of the term "educational space" itself, systematizes the methods of media communications in education. The peculiarities of media education as a set of means and methods of teaching young people adequate media perception are pointed out.

• International Journal of Computer Science & Network Security
• /
• v.21 no.12spc
• /
• pp.473-476
• /
• 2021

The article used a complex system of research methods: observation of the course of the educational process, analysis of literature on pedagogy, teaching methods, modern pedagogical technologies; analysis of the experience of using multimedia in the study of disciplines. The theoretical significance of the article: the definition of multimedia programs is given, the advantages and disadvantages of using multimedia programs are revealed, the basic principles of teaching using multimedia programs are revealed.