• 환경생물
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• 제30권3호
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• pp.157-163
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• 2012

Oxidative stress has been reported to be one of causes of neuritis. This study examined antioxidative activities of methanol extracts of six amphibian species known to be medicinal animals (Rana catesbeiana, R. coreana, R. rugosa, R. dybowskii, R. nigromaculata, and Hyla japonica) and investigated their effects of inhibiting nitric oxide (NO) production and cytotoxicity on the murine macrophage RAW264.7 cells. As inflammation is closely associated with reactive oxygen species, assays on 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging activity, xanthine oxidase inhibitory activity, superoxide anion radical scavenging activity and NO scavenging activity of the extracts of the six species were performed to investigate their antioxidative activity. The results obtained were as follows; All extracts showed antioxidative activity, and the activity of R. dybowskii was the highest in comparison among those. Anti-inflammatory effects of the extracts were also examined, the five extracts except that of R. rugosa did not show cytotoxicity for RAW264.7 cells at the maximal concentration ($1,000{\mu}g\;mL^{-1}$). Selectivity index, meaning NO scavenging activity compared to cytotoxicity, showed the highest level in the extract of R. dybowskii. These results will be very useful basic data for future studies on prevention and treatment of human diseases to understand the biological roles of amphibian extracts throughout the antioxidative or anti-inflammatory pathways.

• 한국안전학회지
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• 제28권4호
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• pp.103-106
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• 2013

During a military service, noise has unusual characteristics, and constitutes a serious hazard to hearing of military servicemen. The purpose of this study is to understand the use of hearing protection and to assess the safety effects of hearing protection by using a ear plug in military. A total of 208(the army : 101, an air force : 107) serviceman were studied utilizing a questionnaire to know how many serviceman use the hearing protection and a total of 202(the army : 110, an air force : 92) serviceman were also studied using a ear fit validation device to assess the safety effects of hearing protection by using a ear plug. The results showed that the army have low used of hearing protection than an air force because of the low frequency of the noise exposure in the army. Personal attenuation rate was increased with 8 dB after fitting education. Therefore, it is recommended that use of proper hearing protection and fitting education was more suitable for military servicemen who were being exposed of the noise in domestic military.

• 벤처창업연구
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• 제10권2호
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• pp.59-67
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• 2015

본 연구는 서울시 Y구의 노인복지관 및 종합사회복지관에서 운영하고 있는 경로식당의 서비스요인(위생상태, 종사자, 편리성, 음식, 접근성, 환경, 사회적 관계)이 재이용의도에 미치는 영향력과, 이 과정에서 급식만족도가 갖는 매개효과를 파악하고자 하였다. 연구대상은 경로식당을 이용하는 65세 이상 노인으로, 총 310명이 최종 유효표본으로 적용되었다. 분석은 SPSS 19.0을 활용하였고, 연구결과 첫째, 인구사회학적 특성 중 임대주택/기타, 서비스요인의 모든 요인이 급식만족도에 영향을 미치는 것으로 나타났다. 둘째, 인구사회학적 특성 및 서비스요인, 급식만족도와 재이용의도의 관계를 파악한 결과, 인구사회학적 특성 중 학력, 서비스요인 중 모든 요인이 재이용의도에 영향을 미치는 것으로 나타났다. 셋째, 인구사회학적 특성 및 서비스요인과 재이용의도의 관계에 있어 급식만족도의 매개효과를 검증한 결과, 서비스요인 중 종사자와 급식만족도가 재이용의도에 정(+)의 영향을 미치는 것으로 나타났다. 따라서 경로식당 서비스의 질적 제고 및 만족도 향상을 위한 각 지자체의 지속적인 관심과 투자, 노력이 요구되며, 나아가 급식환경 개선을 위한 다각적 방법이 모색되어야 할 것이다.

• International Journal of Computer Science & Network Security
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• 제22권8호
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• pp.105-112
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• 2022

Innovation is considered as an implemented innovation in education - in the content, methods, techniques and forms of educational activity and personality education (methods, technologies), in the content and forms of organizing the management of the educational system, as well as in the organizational structure of educational institutions, in the means of training and education and in approaches to social services in education, distance and multimedia learning, which significantly increases the quality, efficiency and effectiveness of the educational process. The classification of currently known pedagogical technologies that are most often used in practice is shown. The basis of the innovative activity of a modern teacher is the formation of an innovative program-methodical complex in the discipline. Along with programmatic and content provision of disciplines, the use of informational tools and their didactic properties comes first. It combines technical capabilities - computer and video technology with live communication between the lecturer and the audience. In pedagogical innovation, the principles reflecting specific laws and regularities of the implementation of innovative processes are singled out. All principles are elements of a complex system of organization and management of innovative activities in the field of education and training. They closely interact with each other, which enhances the effect of each of them due to the synergistic effect. To improve innovative activities in the training of students, today computer technologies are widely used in pedagogy as a science, as well as directly in the practice of the pedagogical process. They have gained the most popularity in such activities as distance learning, online learning, assistance in the education management system, development of programs and virtual textbooks in various subjects, searching for information on the network for the educational process, computer testing of students' knowledge, creation of electronic libraries, formation of a unified scientific electronic environment, publication of virtual magazines and newspapers on pedagogical topics, teleconferences, expansion of international cooperation in the field of Internet education. The article considers computer technologies as the main building material for the entire society. In the modern world, there is a need to prepare a person for life in a multimedia environment. This process should be started as early as possible, because the child's contact with the media is present almost from the moment of his birth.

• Journal of Forest and Environmental Science
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• 제35권4호
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• pp.258-262
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• 2019

This study was aimed to clarify the morphological and ecological characteristics of Dolichomitus cephalotes and Dolichomitus curticornis in order to provide basic data to be used for biological control against Monochamus saltuarius. D. cephalotes and D. curticornis are univioltine in the central region of Korea and overwinters as larval stage inside the cocoon. Both species are ectoparasitoid, and a solitary parasitoid. D. cephalotes adults are emerged from the beginning of April to the middle of May, while D. curticornis adults are emerged from late April to mid-May.

• 한국컴퓨터정보학회논문지
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• 제5권4호
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• pp.218-226
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• 2000

본 논문에서는 최근 인터넷의 급속한 발전으로 학교에 보급된 UNIX기반 서버를 사이버교육, 멀티미디어학습, 학습자료 공유 그리고 교육활동 외에 학사운영에 효율적으로 활용할 수 있게 학교종합정보 관리시스템을 구축하는 방안으로 클라이언트와 서버에 관련된 이론적 배경과 학사관리를 위한 표준화된 서버환경 사양에 대해 조사ㆍ연구하였다. 그리고 교육정보제공을 위한 학교홈페이지 개설을 위한 웹서버 구축방법에 대해서 실무 중심으로 연구하였다.

• 보건교육건강증진학회지
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• 제17권2호
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• pp.35-56
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• 2000

This study is research on physical health and mental health(physical and mental symptom at school) in perceived school environment among adolescents. The study subjects ere selected by senior high school students in seoul and random sampling. The 3,060 subjects were selected 18 schools. The duration for survey was for Nov. 25-Dec. 13, 1998. The reliability of Questionnaire was Cronbach's $\alpha=0.95$. This study used multiple regression through Factor Analysis in SPSS programs. The major findings of this study are as follows: (1) All of Multiple Regression Models were significant. (p<0.001). (2) Physical Mental health is related to gender, personal environment, and economic status. (3) Physical Health is related to perceived school environmental variable (therapeutic teacher-student relationships, classrom climate, and school life satisfaction) among adolescents. (4) Mental Health is related to perceived school environment variables(therapeutic teacher-student relationships, classroom climate, school life satisfaction, teachers' climate, and classmates' attitudes) among adolescents. This study could be used as the basis for the development of educational program, counseling, teacher in-service training, student teacher training and the establishment of educational and health policy.

• 경영과정보연구
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• 제18권
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• pp.223-251
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• 2006

This study examines the factors that have an effect on the satisfaction of student campus life in two college. By the survey questionnaire, three factors selected from 14 questionnaire by factor analysis in the college environmental character. Those factors ware analyzed to estimate the results of this study. And the effect and type of word of mouth communication surveyed by one questionnaire respectively. The major results of this study are as follow; First, the factors that effected on satisfaction of students are the distinction of sex, the division of major field and the distinction of college. But the academic grade factor is not available, Second, the factors of tutors/curriculums and education support service effected on satisfaction of students in campus life, but the factor of education convenience facility is not. Finally, the effect and communication of word of mouth resulted in effectiveness for on satisfaction of students in campus life.

• 한국심리학회지 : 문화 및 사회문제
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• 제14권1호_spc
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• pp.415-425
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• 2008

There are many social issues that should be solved through activity in the local community, such as community development, social service, environmental protection and disaster prevention. Despite a large number of activities, they are not always effective. In this investigation, we examine some alternative approaches to disaster prevention in local communities based on Japanese research and practices. Activity theory (Engestr öm, 1987) was adopted as a theoretical viewpoint. Implications for community education, which is another important issue in the community, are also discussed.

• 한국환경교육학회지:환경교육
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• 제24권3호
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• pp.78-88
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• 2011

The purpose of this study is to conduct classroom-friendly learning activity for sustainable development and to find out the learner's understanding level of experiences on sustainable development. The results of this study could be summarized as follows. First, classroom-friendly learning activity for sustainable development which is focused on the sustainable flea market is concerned about enhancing learner's understanding sustainable development. It could be emphasized a viewpoint of sustainable development, and a possibility of expanding learner's experience in dealing with sustainable development. Second, this study shows also a application of the teaching & learning strategy for classroom-friendly learning for sustainable development. Three different group of pre-service teachers were participated in sustainable flea marker activity. It is considered to make the student be able to catch up core knowledge and value of sustainable development during the classroom-friendly learning activity. In conclusion, this research asserts that classroom-friendly learning activity for sustainable development could make students improve the knowledge and value of sustainable development. It is emphasized to advance education for sustainable development as a new teaching & learning strategy.