• 대한지역사회영양학회지
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• 제21권2호
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• pp.152-164
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• 2016

Objectives: This study was conducted to investigate the status and need for nutrition and dietary life education among nutrition teachers at schools. These characteristics were analyzed if they were different between elementary schools and middle-high schools. Methods: Subjects were 151 nutrition teachers from 70 elementary schools, 41 middle schools and 40 high schools in 17 cities nationwide selected by two-stage stratified cluster sampling process. Survey questionnaires included the items on general characteristics, status and need assessment for nutrition and dietary life education. Chi-square test or t-test was used for data analysis by school groups. Results: Nutrition education was implemented at 65.7% of elementary schools and 51.9% of middle-high schools. Nutrition education was mainly performed in 'discretionary activities extracurricular activities' at elementary school and through 'newsletters, school homepage, foodservice bulletin board' at middle-high school (p<0.001). The most needed topic for nutrition education in nutrition teachers was 'healthy dietary habits and table manners' and this was not significantly different by school groups. Responses on adequate frequency (p<0.01), methods used for nutrition education (p<001), materials for nutrition education (p<0.001), information sources for nutrition education (p<0.001) were significantly different by school groups. Major tasks for activating nutrition education included 'securing the time for implementing nutrition education by reducing work loads' and 'developing standardized nutrition education materials' in schools. Conclusions: Nutrition education at schools might be activated by improving working conditions of nutrition teachers and developing the practical programs that reflect the needs of nutrition teachers.

• 한국치위생학회지
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• 제18권5호
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• pp.853-862
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• 2018

Objectives: This study involved a non-equivalent control group, pre-test/post-test measurement experiment to evaluate the efficacy of distributing plaque disclosing agents to healthy adults living in South Korea and promoting its self-application. Methods: O'Leary index, PHP index, oral health behavior intention, and oral care satisfaction were used as research tools. A notice was posted on the bulletin board from September 12 to October 15, 2016, to recruit adults aged 20-50 years. Data were analyzed using SPSS Version 22.0, and frequency analysis, Pearson's chi-squared, one-way analysis of variance (ANOVA), Kruskal-Wallis, and repeated measures ANOVA were performed. Results: The O'Leary index was significantly reduced in the group (p<0.01), and time (p<0.01) after education and width of the decrease had the highest score in the group that received education on plaque disclosing only. They were followed by the group that received education on plaque disclosing and the rolling method, the group that received education on the rolling method alone, and the control group. The PHP index significantly decreased in the group(p<0.01) and time (p<0.01), and the group time (p=0.039) after education, and width of the decrease had the highest score in the group that received education on plaque disclosing and rolling method. They were followed by the group that received education on plaque disclosing alone, the group that received education on the rolling method alone, and the control group. Conclusions: Based on the aforementioned findings, the direct use of plaque disclosing had a marked effect on self-oral care. These results suggest that the self-application of plaque disclosing could be an effective self-care method for improving the oral environment.

• 컴퓨터교육학회논문지
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• 제3권1호
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• pp.31-41
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• 2000

소집단협동학습은 학습자가 지식의 습득과정에 적극적으로 참여하는 학습자 중심의 학습방법으로 학업 성취와 함께 상호작용 기술의 습득, 학습의 동기유발, 나아가 창의성을 향상할 수 있는 교수-학습법이다. 정보의 급증과 함께 학습자의 능동적인 참여를 요구하는 현 시점에서 교육현장에서 시행되는 협동학습은 더욱 많은 관심을 받고 있다. 특히 교수매체로서 통신망의 도입은 기존에 교실에서 수행되어온 소집단 협동학습에 새로운 조명을 가져온다. 그러나 통신망이 협동학습을 도와줄 수 있다는 교육적 기대에도 불구하고 이를 수행하기 위한 구체적인 지침 및 전략에 관한 연구는 이루어지지 않고 있다. 본 연구에서는 소집단 협동학습에 유용한 통신망의 특성을 기반으로 기존의 협동학습 모형을 고찰하였다. 이를 기반으로 교실 수업에서 교수-학습의 도구로서 통신망기반 소집단 협동학습의 실천적인 전략을 제시하였다.

• 컴퓨터교육학회논문지
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• 제6권4호
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• pp.85-93
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• 2003

본 연구에서는 기존의 웹기반 학습시스템이 가지는 학습자의 동기유발이 미흡한 측면과 대규모 학습자의 동시 접속시 병목현상 및 제한된 상호작용에 따른 학습자의 동기 저하와 같은 문제점들을 해결하기 위해 전자우편을 활용한 문항 기반 수준별 학습 시스템을 제시한다. 제시된 시스템은 다음과 같은 특징을 갖는다. 첫째, 학습자는 수준에 따라 필요한 문항을 전자우편을 통해서 제공받고 제공된 문항을 풀고 이에 대한 결과 및 도움을 학인하는 과정을 통하여 학습에 대한 동기 및 흥미를 자연스럽게 부여받을 수 있다. 둘째, 교수자는 웹상에서 별도의 도구없이 손쉽게 문항을 제작함으로써 문항은행 데이터베이스를 효과적으로 구축하고 학습자가 전자우편을 통하여 수행한 학습 결과를 자동으로 확인하여 학습자의 학습 상태를 효과적으로 관리할 수 있다. 마지막으로 교수자와 학습자가 간편한 방법으로 의사소통을 할 수 있는 대화방 메커니즘을 구축함으로써 학습 시스템의 상호작용성과 질의 및 응답의 용이성을 극대화하였다.

• 대한지역사회영양학회지
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• 제9권4호
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• pp.464-471
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• 2004

For the purpose of developing ‘Web-Based Nutritional Education Program’, this study did instructional analysis, analysis of entry behaviors and learner characteristics to select instructional contents for nutritional education program for junior/senior high school students. Survey questionnaires were distributed from October 21, 2002 to October 26, 2002 to a total of 564 junior/senior high school students in Seoul. The total number of questionnaires collected and used in our study was 479, which is 84.9% of the total questionnaires distributed. As a result of the curriculum analysis of ‘Technology-Home economics’, subjects related with ‘food and nutrition’ in the 7$^{th}$ educational course study result, lessons including the contents of food and nutrition were ‘nutrition and meal of adolescent’ in 7th grade, ‘family meal management’ in 9th grade and ‘practice of home life’ in 10th grade. According to the curriculum analysis, ‘nutrition’ and ‘food’ were chosen for the superior subjects of nutrition education program and four subordinate subjects per superior one were developed. Then, entry behaviors and learner characteristics were analyzed： life characteristics, internet usage, anthropometrics data and nutritional knowledge. Students were interested in using computer and preferred passive activity to dynamic activity. According. to the analysis of internet usage, WBI for students should composed active parts such as game, moving image, immediate reply and follow-up bye-mail, bulletin board and com- munity activity. Students’ BMI were in normal range but they were lacked nutritional knowledge. We wrote performance objectives that were specific behavior skills to be learned, the conditions under which they must be performed and the criteria for successful performance. The next step for developing the WBI nutrition education program would be based on the results mentioned above.

• 천문학회보
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• 제38권1호
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• pp.65.1-65.1
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• 2013

The 2011 August 09 Flare is one of the largest X-ray flares of Sunspot Cycle 24 to attract a lot of attention for its various activities detected in coronal images. In this study we concern ourselves mostly on information of high energy electrons produced during this flare provided by hard X ray data from the Reuven Ramaty High-Energy Solar Spectroscopic Imager (RHESSI) and radio data from the Korean Solar Radio Burst Locator (KSRBL) and Ondrejov. EUV images obtained by the Atmospheric Imaging Assembly (AIA) on board the Solar Dynamic Observatory are used to provide the context of magnetic reconnection. In our results, (1) HXR spectra have a rich spectral morphology. Initially it could be fit by one thermal component (T~30MK) and one single power law nonthermal spectrum, but later a better fit could be made by introducing an additional thermal component (T~55 MK). (2) Time delays between the KSRBL burst and the RHESSI hard X-ray emission were found which are more obvious at low frequencies and insignificant at high frequencies. (3) The HXR source lies in the core of the quadrupolar active region. In our interpretation based on AIA 94 A images, the outer part of the active region erupted to be blown out, leaving the intense hard X-ray emission concentrated in the core. We relate the appearance of the second thermal component to the evolution of the AIA 171 and 94 A images. The time delays of microwave peaks to HXR peaks are interpreted as indicating presence of trapped electrons in larger closed magnetic loops. With these result we conclude that the hard X ray and microwaves are due to impulsive acceleration in the low and high heights and a sigmoidal reconnection scenario.

• 천문학회보
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• 제39권1호
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• pp.72.1-72.1
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• 2014

In this study, we extrapolate a nonlinear force-free field (NLFFF) from an observed photospheric magnetic field to understand the three-dimensional (3D) coronal magnetic field producing a huge solar flare. The purpose of this study is to develop a NLFFF extrapolation code based on the so-called MHD relaxation method and check how accurately our model reconstructs a coronal field. Furthermore, we apply it to the photospheric magnetic field obtained by Helioseismic and Magnetic Imager (HMI) on board Solar Dynamics Observatory (SDO) to reconstruct a 3D magnetic structure. We first investigate factors in controlling the accuracy of our NLFFF code by using a semi-analytical solution obtained by Low & Lou (1990). To extend a work done by Inoue et al. (2014), we apply various boundary conditions at the side and top boundaries in order to make our solution close to a realistic solution. As a consequence, our solution has a good accuracy when three components of a reference field are all fixed at the boundaries. Furthermore, it is also found that our solution is well matched to the Low & Lou solution in the central area of a simulation domain when the three components of a potential field are fixed at side and top boundaries (this approach is close to a realistic solution). Finally, we present the 3D coronal magnetic field producing an X 1.5-class flare in the active region 11166 through the extrapolation from SDO/HMI.

• 한국환경생태학회지
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• 제20권1호
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• pp.9-19
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• 2006

본 연구는 치악산국립공원 탐방객을 대상으로 자기안내식 환경해설 방식으로 활용되고 있는 해설매체에 대한 이용과 평가 현황을 파악하여 공원관리 기초자료 제공을 목적으로 수행하였다. 이를 위해 탐방객 직접기입방식의 설문조사를 실시하였고 총275매의 유효 자료를 분석에 이용하였다. 응답자들의 사회경제적 특성과 탐방행태는 동일 대상지에서 실시한 결과와 유사하였다. 환경해설 매체를 이용했던 탐방객중 '공원 이용자원 안내판'의 이용률이 가장 높았으며(77%) '탐방로변수목해설판', '탐방로변 문화자원 해설판', '공원정보제공 LED사인'의 이용률은 높은 편이었다. '공원안내지도', '국립공원 홈페이지', '간이탐방안내소 전시물', '정보게시판'은 40%미만의 적은 이용을 한 것으로 나타났다. 5점 리커트 척도를 이용한 환경해설 매체에 대한 중요도와 성취도 분석결과 중요도는 전 항목에서 측정값이 평균4점 이상으로 나타나 중요성을 높게 인식하고 있었다. 성취도도 '간이탐방안내소 전시물'을 제외하고는 대체적으로 긍정적인 반응을 보였다.

• 한국환경생태학회지
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• 제20권2호
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• pp.143-152
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• 2006

본 연구는 월출산국립공원에서 자기안내식 환경해설 방식으로 활용되고 있는 각종 해설매체에 대한 탐방객 인식을 파악하여 효율적인 공원관리 기초자료 제공을 목적으로 수행하였다. 이를 위해 탐방객 직접기입 방식의 설문조사를 실시하였고 총 196매의 설문지가 유효표본으로 이용되었다. 조사결과 '공원 이용자원 안내판'이 가장 이용률이 높은 환경해설 매체로 나타났으며 탐방로변 수목해설판, 탐방로변 문화자원 해설판, 자기안내식 자연관찰로도 비교 적 높은 이용률을 보였다. 그러나 공원안내지도, 정보게시판, 공원정보제공 LED사인, 간이탐방안내소내 전시물 등은 이용의 효율성이 떨어지는 매체로 평가되었다. 공원내 환경해설 매체에 대한중요도-성취도 분석에서는 전체적으로 높은 중요도와 이에 대한 긍정적인 성취 수준의 응답경향이 나타났다.

• 동서간호학연구지
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• 제19권2호
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• pp.159-167
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• 2013

Purpose: The purpose of the study is to develop and to evaluate a internet-based social support program for the mothers of congenitally abnormal children. The theoretical basis of the study is the moderating effect model of social support theory (Cobb, 1976). Methods: In first phase, an internet support program was developed according to the practical web development stages proposed by Boling and Frick (2002). In the second phase, the internet support program was provided and evaluated to 18 mothers who reared congenitally abnormal children from March to May 2008. Results: In the first stage, demands of the program were collected from interviews of eighteen mothers of congenitally abnormal children of ages one to three. At the same time, literature review and validity of the contents were also examined. In the second stage, the correspondence of the program contents to the social support needed was also examined. In the third and fourth stages, prototype of the social program was prepared in documents and that of computer program was prepared. In the final stage, an internet-based web site was constructed. The social support provided by the web site were composed of informational support, emotional support and appraisal support including bulletin board system and chatting service. After program development, pre-tests and post-test were performed to investigate the effect of the program on maternal confidence and mood. Data were analyzed using Wilcoxon signed rank test. The analysis showed that maternal confidence of post-test was improved than that of pre-test with statistically meaningful figure (Z=-2.54, p<.05). The positive mood of post-test was also improved than that of pre-test and the result was statistically supported (Z=-2.20, p<.05). Conclusion: It is suggestive that the internet based social support programs is accessible and appropriate service to congenitally abnormal children's mother. It is necessary to develop and use the internet based social support programs in public health system.